Mercurial > dive4elements > river
view flys-backend/src/main/java/de/intevation/flys/model/CrossSectionLine.java @ 4573:b87073a05f9d
flys-client: Patch to render combobox options as clickable links.
The way of passing data arguments to the links and further to
the Artifact feeding service is somewhat hacked and should be
refactored (later...).
author | Christian Lins <christian.lins@intevation.de> |
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date | Tue, 27 Nov 2012 12:50:10 +0100 |
parents | 3b001c273f1b |
children |
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package de.intevation.flys.model; import java.io.Serializable; import java.util.ArrayList; import java.util.List; import java.util.Collections; import java.util.Comparator; import java.awt.geom.Point2D; import javax.persistence.Entity; import javax.persistence.Id; import javax.persistence.Table; import javax.persistence.GeneratedValue; import javax.persistence.Column; import javax.persistence.SequenceGenerator; import javax.persistence.GenerationType; import javax.persistence.OneToOne; import javax.persistence.OneToMany; import javax.persistence.JoinColumn; import org.apache.log4j.Logger; @Entity @Table(name = "cross_section_lines") public class CrossSectionLine implements Serializable { private static Logger logger = Logger.getLogger(CrossSectionLine.class); public static final double EPSILON = 1e-4; public static final double TOO_SMALL = 0.2; public static final double TOO_BIG = 2500; private Integer id; private Double km; private CrossSection crossSection; private List<CrossSectionPoint> points; public static final Comparator<CrossSectionPoint> COL_POS_CMP = new Comparator<CrossSectionPoint>() { @Override public int compare(CrossSectionPoint a, CrossSectionPoint b) { double xa = a.getX().doubleValue(); double xb = b.getX().doubleValue(); double d = xa - xb; if (d < -EPSILON) return -1; if (d > +EPSILON) return +1; int diff = a.getColPos() - b.getColPos(); return diff < 0 ? -1 : diff > 0 ? +1 : 0; } }; public static final boolean isValid(double x) { x = Math.abs(x); return x > TOO_SMALL && x < TOO_BIG; } public static final boolean isValid(Point2D p) { return isValid(p.getX()) && isValid(p.getY()); } public CrossSectionLine() { } public CrossSectionLine(CrossSection crossSection, Double km) { this.crossSection = crossSection; this.km = km; } @Id @SequenceGenerator( name = "SEQUENCE_CROSS_SECTION_LINES_ID_SEQ", sequenceName = "CROSS_SECTION_LINES_ID_SEQ", allocationSize = 1) @GeneratedValue( strategy = GenerationType.SEQUENCE, generator = "SEQUENCE_CROSS_SECTION_LINES_ID_SEQ") @Column(name = "id") public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } @Column(name = "km") public Double getKm() { return km; } public void setKm(Double km) { this.km = km; } @OneToOne @JoinColumn(name = "cross_section_id") public CrossSection getCrossSection() { return crossSection; } public void setCrossSection(CrossSection CrossSection) { this.crossSection = crossSection; } @OneToMany @JoinColumn(name="cross_section_line_id") public List<CrossSectionPoint> getPoints() { return points; } public void setPoints(List<CrossSectionPoint> points) { this.points = points; } public List<Point2D> fetchCrossSectionLinesPoints() { List<CrossSectionPoint> linePoints = new ArrayList<CrossSectionPoint>(getPoints()); Collections.sort(linePoints, COL_POS_CMP); List<Point2D> points = new ArrayList<Point2D>(linePoints.size()); for (CrossSectionPoint p: linePoints) { double x = p.getX().doubleValue(); double y = p.getY().doubleValue(); if (isValid(x) && isValid(y)) { points.add(new Point2D.Double(x, y)); } } return points; } public double [][] fetchCrossSectionProfile() { return fetchCrossSectionProfile(fetchCrossSectionLinesPoints()); } public static double [][] fetchCrossSectionProfile(List<Point2D> points) { int P = points.size(); double [] xs = new double[P]; double [] ys = new double[P]; if (P > 0) { xs[0] = points.get(0).getX(); ys[0] = points.get(0).getY(); for (int i = 1; i < P; i++) { Point2D p = points.get(i); double x = p.getX(); double y = p.getY(); if (x <= xs[i-1]) { x = xs[i-1] + EPSILON; } xs[i] = x; ys[i] = y; } } return new double [][] { xs, ys }; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :