Mercurial > dive4elements > river

annotate flys-client/src/main/java/org/dive4elements/river/client/shared/Transform2D.java @ 5834:f507086aa94b

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Repaired internal references.
author Sascha L. Teichmann <teichmann@intevation.de>
date Thu, 25 Apr 2013 12:31:32 +0200
parents flys-client/src/main/java/de/intevation/flys/client/shared/Transform2D.java@ef745bc6bed9
children 821a02bbfb4e
rev   line source
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017371801479 Added a chart info service to fetch the info document for a specific chart from artifact server.
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1 package de.intevation.flys.client.shared;
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2
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3 import java.io.Serializable;
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4 import java.util.Date;
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5
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6 import com.google.gwt.core.client.GWT;
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7 import com.google.gwt.i18n.client.DateTimeFormat;
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8 import com.google.gwt.i18n.client.DateTimeFormat.PredefinedFormat;
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9 import com.google.gwt.i18n.client.NumberFormat;
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10
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11
017371801479 Added a chart info service to fetch the info document for a specific chart from artifact server.
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12 /**
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13 * This object supports a linear transformation to transform xy coordinates into
017371801479 Added a chart info service to fetch the info document for a specific chart from artifact server.
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14 * an other coordinate system based on scale and translation values.
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15 *
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16 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
017371801479 Added a chart info service to fetch the info document for a specific chart from artifact server.
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17 */
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18 public class Transform2D implements Serializable {
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19
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20 protected String xType;
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21 protected String yType;
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22
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23 protected double sx;
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24 protected double sy;
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25
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26 protected double tx;
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27 protected double ty;
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28
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29
017371801479 Added a chart info service to fetch the info document for a specific chart from artifact server.
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30 public Transform2D() {
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31 }
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32
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33
017371801479 Added a chart info service to fetch the info document for a specific chart from artifact server.
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34 /**
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35 * Creates a new transformation with scale and translation factors.
017371801479 Added a chart info service to fetch the info document for a specific chart from artifact server.
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36 *
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37 * @param sx The scale factor for the x axis.
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38 * @param sy The scale factor for the y axis.
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39 * @param tx The translation factor for the x axis.
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40 * @param ty The translation factor for the y axis.
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41 */
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42 public Transform2D(double sx, double sy, double tx, double ty) {
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43 this(sx, sy, tx, ty, "number", "number");
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44 }
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45
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46
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47 public Transform2D(
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48 double sx, double sy,
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49 double tx, double ty,
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50 String xType,
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51 String yType
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52 ) {
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53 this.xType = xType;
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54 this.yType = yType;
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55
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56 this.sx = sx;
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57 this.sy = sy;
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58 this.tx = tx;
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59 this.ty = ty;
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60 }
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61
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62
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63 /**
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64 * Transforms the pixel x and y into a new coordinate system based on the
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65 * scale and translation values specified in the constructor.
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66 */
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67 public double[] transform(double x, double y) {
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68 double resX = sx * x + tx;
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69 double resY = sy * y + ty;
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70
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71 return new double[] { resX, resY };
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72 }
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74
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75 public String[] format(Number[] xy) {
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76 String x = null;
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77 String y = null;
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78
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79 if (xType.equals("date")) {
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80 x = formatDate(xy[0].longValue());
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81 }
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82 else {
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83 x = formatNumber(xy[0].doubleValue());
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84 }
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85
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86 if (yType.equals("date")) {
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87 y = formatDate(xy[1].longValue());
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88 }
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89 else {
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90 y = formatNumber(xy[1].doubleValue());
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91 }
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92
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93 return new String[] { x, y };
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94 }
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95
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96
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97 protected String formatDate(long time) {
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98 Date date = new Date(time);
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99 DateTimeFormat df = getDateTimeFormat();
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100
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101 return df.format(date);
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102 }
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103
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104
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105 protected String formatNumber(double number) {
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106 NumberFormat nf = getNumberFormat();
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107
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108 return nf.format(number);
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109 }
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110
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111
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112 public DateTimeFormat getDateTimeFormat() {
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113 return DateTimeFormat.getFormat(PredefinedFormat.DATE_SHORT);
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114 }
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115
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116
ef745bc6bed9 Distinguish between numbers and dates while parsing chart info documents; the MousePosition panel now displays the position on date axes correctly.
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parents: 610
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117 public NumberFormat getNumberFormat() {
ef745bc6bed9 Distinguish between numbers and dates while parsing chart info documents; the MousePosition panel now displays the position on date axes correctly.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 610
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118 return NumberFormat.getDecimalFormat();
ef745bc6bed9 Distinguish between numbers and dates while parsing chart info documents; the MousePosition panel now displays the position on date axes correctly.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 610
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119 }
ef745bc6bed9 Distinguish between numbers and dates while parsing chart info documents; the MousePosition panel now displays the position on date axes correctly.
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parents: 610
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120
ef745bc6bed9 Distinguish between numbers and dates while parsing chart info documents; the MousePosition panel now displays the position on date axes correctly.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 610
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121
610
ea2191b1299d #170 Changed the DOM manipulation while zoom and drag operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 535
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122 public void dumpGWT() {
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 535
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123 GWT.log("SX = " + sx);
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parents: 535
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124 GWT.log("SY = " + sy);
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parents: 535
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125 GWT.log("TX = " + tx);
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parents: 535
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126 GWT.log("TY = " + ty);
ea2191b1299d #170 Changed the DOM manipulation while zoom and drag operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 535
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127 }
535
017371801479 Added a chart info service to fetch the info document for a specific chart from artifact server.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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128 }
017371801479 Added a chart info service to fetch the info document for a specific chart from artifact server.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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129 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org