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annotate flys-backend/src/main/java/org/dive4elements/river/importer/parsers/tim/Line.java @ 5829:18619c1e7c2a

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Repaired internal references.
author Sascha L. Teichmann <teichmann@intevation.de>
date Thu, 25 Apr 2013 11:54:36 +0200
parents dfb26b03b179
children
rev   line source
5829
18619c1e7c2a Repaired internal references.
Sascha L. Teichmann <teichmann@intevation.de>
parents: 5828
diff changeset
1 package org.dive4elements.river.importer.parsers.tim;
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2
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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3 /** Two coordinates and a helper. */
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4 public class Line {
7fdddc6ba296 Initial version of support files for TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
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6 public Coordinate a;
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7 public Coordinate b;
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9 public Line() {
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10 }
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12 public Line(Coordinate a, Coordinate b) {
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13 this.a = a;
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14 this.b = b;
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15 }
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17 /** Project coordinate to line. */
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18 public double distanceToFirst(Coordinate c) {
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20 double nx = b.x - a.x;
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21 double ny = b.y - a.y;
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23 double len = Math.sqrt(nx*nx + ny*ny);
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25 nx /= len;
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26 ny /= len;
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28 double px = c.x - a.x;
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29 double py = c.y - a.y;
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31 return nx*px + ny*py;
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32 }
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33 }
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34 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org