dive4elements/river: flys-artifacts/src/main/java/de/intevation/flys/artifacts/geom/Polygon2D.java annotate

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/geom/Polygon2D.java @ 3727:b81f328da582

Removed code duplication. flys-artifacts/trunk@5399 c6561f87-3c4e-4783-a992-168aeb5c3f6f

author	Sascha L. Teichmann <sascha.teichmann@intevation.de>
date	Sat, 08 Sep 2012 12:58:58 +0000
parents	3c006a53e551
children

rev	line source
3227 ed07dd55f487 Fixed various bugs (package declarations, moved classes to correct places). Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3076 diff changeset	1 package de.intevation.flys.artifacts.geom;
1794 2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	2
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	3 import java.awt.Shape;
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	4 import java.awt.geom.Path2D;
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	5 import java.awt.geom.Point2D;
3227 ed07dd55f487 Fixed various bugs (package declarations, moved classes to correct places). Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3076 diff changeset	6 import java.io.Serializable;
1794 2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	7 import java.util.ArrayList;
3227 ed07dd55f487 Fixed various bugs (package declarations, moved classes to correct places). Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3076 diff changeset	8 import java.util.Arrays;
ed07dd55f487 Fixed various bugs (package declarations, moved classes to correct places). Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3076 diff changeset	9 import java.util.Collections;
ed07dd55f487 Fixed various bugs (package declarations, moved classes to correct places). Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3076 diff changeset	10 import java.util.Comparator;
1794 2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	11 import java.util.List;
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	12
1798 552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	13 import de.intevation.flys.artifacts.math.Linear;
3227 ed07dd55f487 Fixed various bugs (package declarations, moved classes to correct places). Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3076 diff changeset	14 import static de.intevation.flys.artifacts.geom.VectorUtils.EPSILON;
ed07dd55f487 Fixed various bugs (package declarations, moved classes to correct places). Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3076 diff changeset	15 import static de.intevation.flys.artifacts.geom.VectorUtils.X;
ed07dd55f487 Fixed various bugs (package declarations, moved classes to correct places). Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3076 diff changeset	16 import static de.intevation.flys.artifacts.geom.VectorUtils.Y;
1799 281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	17
1794 2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	18 public class Polygon2D
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	19 implements Serializable
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	20 {
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	21 public static final Comparator<Point2D> POINT_X_CMP =
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	22 new Comparator<Point2D>() {
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	23 public int compare(Point2D a, Point2D b) {
1795 fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	24 double d = X(a) - X(b);
1794 2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	25 if (d < 0d) return -1;
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	26 return d > 0d ? + 1 : 0;
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	27 }
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	28 };
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	29
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	30 public static final Comparator<Point2D []> FIRST_POINT_X =
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	31 new Comparator<Point2D []>() {
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	32 public int compare(Point2D [] a, Point2D [] b) {
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	33 if (a.length == 0) return -1; // should not happen.
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	34 if (b.length == 0) return +1; // should not happen.
1795 fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	35 double d = X(a[0]) - Y(b[0]);
1794 2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	36 if (d < 0d) return -1;
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	37 return d > 0d ? + 1 : 0;
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	38 }
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	39 };
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	40
1795 fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	41 protected List<Point2D> points;
1794 2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	42
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	43 public Polygon2D() {
1795 fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	44 points = new ArrayList<Point2D>();
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	45 }
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	46
1800 1402991208d5 Polygon2D: made it compilable again. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1799 diff changeset	47 public Polygon2D(List<Point2D> points) {
1799 281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	48 this.points = points;
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	49 }
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	50
1794 2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	51 public void add(double x, double y) {
1795 fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	52 points.add(new Point2D.Double(x, y));
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	53 }
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	54
1798 552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	55 protected static boolean addCheck(Point2D p, List<Point2D> points) {
1795 fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	56 switch (points.size()) {
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	57 case 0:
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	58 points.add(p);
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	59 return true;
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	60 case 1:
1797 5eec623db50a Polygon2D: moved 2D vector operation to separate class. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1795 diff changeset	61 if (VectorUtils.epsilonEquals(points.get(0), p)) {
1795 fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	62 return false;
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	63 }
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	64 points.add(p);
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	65 return true;
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	66 default:
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	67 int L = points.size()-1;
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	68 Point2D last = points.get(L);
1797 5eec623db50a Polygon2D: moved 2D vector operation to separate class. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1795 diff changeset	69 if (VectorUtils.epsilonEquals(last, p)) {
1795 fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	70 return false;
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	71 }
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	72 Point2D before = points.get(L-1);
1797 5eec623db50a Polygon2D: moved 2D vector operation to separate class. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1795 diff changeset	73 if (VectorUtils.collinear(before, last, p)) {
1795 fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	74 points.set(L, p);
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	75 }
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	76 else {
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	77 points.add(p);
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	78 }
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	79 return true;
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	80 }
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	81 }
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	82
1798 552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	83 public boolean addCheck(Point2D p) {
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	84 return addCheck(p, points);
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	85 }
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	86
1795 fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	87 public void addReversed(List<Point2D> other) {
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	88 for (int i = other.size()-1; i >= 0; --i) {
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	89 addCheck(other.get(i));
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	90 }
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	91 }
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	92
1794 2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	93 public double area() {
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	94 double area = 0d;
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	95
3258 3c006a53e551 Replaced tabs with four spaces each. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 3227 diff changeset	96 for (int i = 0, N = points.size(); i < N; ++i) {
3c006a53e551 Replaced tabs with four spaces each. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 3227 diff changeset	97 int j = (i + 1) % N;
1795 fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	98 Point2D pi = points.get(i);
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	99 Point2D pj = points.get(j);
3258 3c006a53e551 Replaced tabs with four spaces each. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 3227 diff changeset	100 area += X(pi)*Y(pj);
3c006a53e551 Replaced tabs with four spaces each. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 3227 diff changeset	101 area -= X(pj)*Y(pi);
3c006a53e551 Replaced tabs with four spaces each. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 3227 diff changeset	102 }
1794 2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	103
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	104 return 0.5d*area;
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	105 }
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	106
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	107 public Shape toShape() {
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	108 Path2D.Double path = new Path2D.Double();
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	109
1795 fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	110 int N = points.size();
1794 2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	111
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	112 if (N > 0) {
1795 fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	113 Point2D p = points.get(0);
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	114 path.moveTo(X(p), Y(p));
1794 2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	115 for (int i = 1; i < N; ++i) {
1795 fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	116 p = points.get(i);
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	117 path.lineTo(X(p), Y(p));
1794 2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	118 }
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	119 path.closePath();
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	120 }
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	121
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	122 return path;
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	123 }
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	124
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	125 protected static List<Point2D []> splitByNaNs(
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	126 double [] xs,
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	127 double [] ys
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	128 ) {
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	129 List<Point2D []> parts = new ArrayList<Point2D []>();
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	130
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	131 List<Point2D> tmp = new ArrayList<Point2D>(xs.length);
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	132
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	133 for (int i = 0; i < xs.length; ++i) {
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	134 double x = xs[i];
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	135 double y = ys[i];
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	136
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	137 if (Double.isNaN(x) \|\| Double.isNaN(y)) {
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	138 if (!tmp.isEmpty()) {
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	139 Point2D [] part = new Point2D[tmp.size()];
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	140 parts.add(tmp.toArray(part));
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	141 tmp.clear();
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	142 }
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	143 }
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	144 else {
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	145 tmp.add(new Point2D.Double(x, y));
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	146 }
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	147 }
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	148
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	149 if (!tmp.isEmpty()) {
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	150 Point2D [] part = new Point2D[tmp.size()];
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	151 parts.add(tmp.toArray(part));
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	152 }
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	153
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	154 return parts;
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	155 }
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	156
1795 fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	157 protected static boolean removeNoneIntersecting(
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	158 List<Point2D []> As,
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	159 List<Point2D []> Bs
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	160 ) {
1798 552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	161 int B = Bs.size()-1;
1795 fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	162 OUTER: for (int i = 0; i < As.size();) {
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	163 Point2D [] a = As.get(i);
1798 552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	164 int lo = 0, hi = B;
1795 fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	165 while (lo <= hi) {
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	166 int mid = (lo + hi) >> 1;
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	167 Point2D [] b = Bs.get(mid);
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	168 if (X(a[0]) > X(b[b.length-1])) lo = mid+1;
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	169 else if (X(a[a.length-1]) < X(b[0])) hi = mid-1;
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	170 else {
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	171 // found: keep
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	172 ++i;
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	173 continue OUTER;
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	174 }
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	175 }
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	176 // not found: remove
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	177 As.remove(i);
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	178 }
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	179
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	180 return As.isEmpty();
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	181 }
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	182
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	183 protected static void buildPolygons(
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	184 Point2D [] as,
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	185 Point2D [] bs,
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	186 Point2D [][] rest,
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	187 List<Polygon2D> positives,
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	188 List<Polygon2D> negatives
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	189 ) {
1798 552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	190 List<Point2D> apoints = new ArrayList<Point2D>();
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	191 List<Point2D> bpoints = new ArrayList<Point2D>();
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	192
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	193 double ax = X(as[0]);
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	194 double bx = X(bs[0]);
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	195
1799 281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	196 int ai = 1;
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	197 int bi = 1;
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	198
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	199 boolean intersect = false;
1798 552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	200
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	201 if (ax == bx) {
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	202 apoints.add(as[0]);
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	203 bpoints.add(bs[0]);
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	204 }
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	205 else if (ax > bx) {
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	206 apoints.add(as[0]);
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	207 double bx1;
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	208 while ((bx1 = X(bs[bi])) < ax) ++bi;
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	209 if (bx1 == ax) {
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	210 bpoints.add(bs[bi]);
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	211 }
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	212 else { // need to calculate start b point.
1799 281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	213 intersect = true;
1798 552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	214 double by1 = Linear.linear(
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	215 ax,
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	216 X(bs[bi-1]), bx1,
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	217 Y(bs[bi-1]), Y(bs[bi]));
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	218
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	219 bpoints.add(new Point2D.Double(ax, by1));
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	220 }
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	221 }
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	222 else { // bx > ax: Symmetric case
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	223 bpoints.add(bs[0]);
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	224 double ax1;
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	225 while ((ax1 = X(as[ai])) < bx) ++ai;
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	226 if (ax1 == bx) {
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	227 apoints.add(as[ai]);
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	228 }
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	229 else { // need to calculate start b point.
1799 281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	230 intersect = true;
1798 552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	231 double ay1 = Linear.linear(
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	232 bx,
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	233 X(as[ai-1]), ax1,
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	234 Y(as[ai-1]), Y(as[ai]));
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	235
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	236 apoints.add(new Point2D.Double(bx, ay1));
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	237 }
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	238 }
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	239
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	240 // now we have a point in each list, decide if neg/pos.
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	241 boolean neg = Y(bpoints.get(0)) > Y(apoints.get(0));
552888e9c64a Polygon2D: Handle start points when building polygons. Work in progress. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1797 diff changeset	242
1799 281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	243 // Continue with inner points
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	244
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	245 Line line = new Line();
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	246
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	247 while (ai < as.length && bi < bs.length) {
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	248 double xan = X(as[ai]);
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	249 double xbn = X(bs[bi]);
3076 5642a83420f2 FLYS artifacts: Removed trailing whitespace. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1801 diff changeset	250 if (xan == xbn) {
1799 281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	251 double yan = Y(as[ai]);
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	252 double ybn = Y(bs[ai]);
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	253
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	254 if (neg) {
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	255 if (yan > ybn) { // intersection
1801 6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	256 Point2D ip = VectorUtils.intersection(
6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	257 apoints.get(apoints.size()-1), as[ai],
6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	258 bpoints.get(bpoints.size()-1), bs[bi]);
6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	259 addCheck(ip, apoints);
6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	260 addCheck(ip, bpoints);
6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	261 Polygon2D p = new Polygon2D(
6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	262 new ArrayList<Point2D>(apoints));
6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	263 p.addReversed(bpoints);
6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	264 negatives.add(p);
6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	265 apoints.clear();
6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	266 bpoints.clear();
6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	267 apoints.add(ip);
6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	268 bpoints.add(ip);
6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	269 neg = !neg;
1799 281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	270 }
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	271 else { // no intersection
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	272 addCheck(as[ai], apoints);
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	273 addCheck(bs[bi], bpoints);
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	274 }
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	275 }
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	276 else { // not neg
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	277 if (ybn > yan) { // intersection
1801 6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	278 Point2D ip = VectorUtils.intersection(
6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	279 apoints.get(apoints.size()-1), as[ai],
6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	280 bpoints.get(bpoints.size()-1), bs[bi]);
6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	281 addCheck(ip, apoints);
6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	282 addCheck(ip, bpoints);
6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	283 Polygon2D p = new Polygon2D(
6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	284 new ArrayList<Point2D>(apoints));
6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	285 p.addReversed(bpoints);
6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	286 positives.add(p);
6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	287 apoints.clear();
6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	288 bpoints.clear();
6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	289 apoints.add(ip);
6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	290 bpoints.add(ip);
6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	291 neg = !neg;
1799 281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	292 }
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	293 else { // no intersection
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	294 addCheck(as[ai], apoints);
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	295 addCheck(bs[bi], bpoints);
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	296 }
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	297 }
1801 6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	298 ++ai;
6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	299 ++bi;
1799 281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	300 }
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	301 else if (xan > xbn) {
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	302 line.set(apoints.get(apoints.size()-1), as[ai]);
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	303 double dir = neg ? -1d: 1d; // XXX: correct sign?
3076 5642a83420f2 FLYS artifacts: Removed trailing whitespace. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1801 diff changeset	304 while (bi < bs.length
1799 281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	305 && X(bs[bi]) < xan
3076 5642a83420f2 FLYS artifacts: Removed trailing whitespace. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1801 diff changeset	306 && line.eval(bs[bi])*dir > EPSILON)
1799 281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	307 ++bi;
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	308 if (bi == bs.length) {
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	309 // b run out of points
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	310 // calculate Y(last_a, as[ai]) for X(bs[bi-1])
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	311 double ay1 = Linear.linear(
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	312 X(bs[bi-1]),
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	313 X(apoints.get(apoints.size()-1)), X(as[ai]),
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	314 Y(apoints.get(apoints.size()-1)), Y(as[ai]));
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	315 addCheck(new Point2D.Double(X(bs[bi-1]), ay1), apoints);
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	316 addCheck(bs[bi-1], bpoints);
1801 6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	317 Polygon2D p = new Polygon2D(
6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	318 new ArrayList<Point2D>(apoints));
6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	319 p.addReversed(bpoints);
6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	320 apoints.clear();
6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	321 bpoints.clear();
6f83d9d434f2 Polygon2D: Generate polygons for trivial cases. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1800 diff changeset	322 (neg ? negatives : positives).add(p);
1799 281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	323 break;
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	324 }
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	325 else {
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	326 // TODO: intersect line and/or X(bs[bi]) >= xan?
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	327 }
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	328 }
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	329 else { // xbn > xan
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	330 line.set(bpoints.get(bpoints.size()-1), bs[bi]);
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	331 // TODO: continue symmetric
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	332 }
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	333 }
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	334
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	335 // TODO: Continue with closing segment
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	336 }
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	337
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	338 public static final class Line {
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	339
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	340 private double a;
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	341 private double b;
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	342 private double c;
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	343
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	344 public Line() {
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	345 }
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	346
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	347 public Line(Point2D p1, Point2D p2) {
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	348 set(p1, p2);
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	349 }
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	350
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	351 public void set(Point2D p1, Point2D p2) {
3076 5642a83420f2 FLYS artifacts: Removed trailing whitespace. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1801 diff changeset	352 Point2D p3 =
1799 281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	353 VectorUtils.normalize(
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	354 VectorUtils.sub(p1, p2));
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	355
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	356 Point2D n = VectorUtils.ortho(p3);
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	357
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	358 a = X(n);
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	359 b = Y(n);
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	360
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	361 // ax + by + c = 0
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	362 // c = -ax -by
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	363
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	364 c = -aX(p1) - bY(p1);
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	365 }
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	366
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	367 public double eval(Point2D p) {
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	368 return aX(p) + bY(p) + c;
281b9430c720 Polygon2D: More code to build polygons from curve. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1798 diff changeset	369 }
1795 fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	370 }
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	371
1794 2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	372 public static void createPolygons(
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	373 double [] xAs, double [] yAs,
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	374 double [] xBs, double [] yBs,
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	375 List<Polygon2D> positives,
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	376 List<Polygon2D> negatives
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	377 ) {
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	378 if (xAs.length == 0 \|\| xBs.length == 0) {
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	379 return;
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	380 }
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	381
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	382 List<Point2D []> splAs = splitByNaNs(xAs, yAs);
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	383 List<Point2D []> splBs = splitByNaNs(xBs, yBs);
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	384
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	385 // They feeded us with NaNs only.
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	386 if (splAs.isEmpty() \|\| splBs.isEmpty()) {
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	387 return;
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	388 }
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	389
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	390 // Sort each part by x to ensure that the first
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	391 // is the smallest.
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	392 for (Point2D [] splA: splAs) {
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	393 Arrays.sort(splA, POINT_X_CMP);
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	394 }
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	395
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	396 for (Point2D [] splB: splBs) {
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	397 Arrays.sort(splB, POINT_X_CMP);
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	398 }
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	399
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	400 // Now sort all parts by there first elements.
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	401 // Should be good enough to find overlapping regions.
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	402 Collections.sort(splAs, FIRST_POINT_X);
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	403 Collections.sort(splBs, FIRST_POINT_X);
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	404
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	405 // Check if the two series intersect at all.
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	406 // If no then there will be no area between them.
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	407
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	408 Point2D [] p1 = splAs.get(0);
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	409 Point2D [] p2 = splBs.get(splBs.size()-1);
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	410
1795 fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	411 // Sort out the ranges that are not intersecting
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	412 // the ranges in the other series.
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	413 // We are going to merge them anyway
3076 5642a83420f2 FLYS artifacts: Removed trailing whitespace. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1801 diff changeset	414 // so this is not strictly required.
1795 fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	415 // Keep it to recude cases.
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	416 if (removeNoneIntersecting(splAs, splBs)
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	417 \|\| removeNoneIntersecting(splBs, splAs)
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	418 ) {
fe7f9264a2ed Interim checkin for polygon calculation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1794 diff changeset	419 // They do not intersect at all.
1794 2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	420 return;
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	421 }
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	422
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	423 // TODO: Intersect/split the two series parts.
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	424 }
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	425 }
2ad7ba85a2b3 Work in progress: Added polygon to help creating 'Raum/Flaeche' renderers. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	426 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :

Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/geom/Polygon2D.java @ 3727:b81f328da582