svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.mapcontext / org.gvsig.fmap.mapcontext.operation / src / main / java / org / gvsig / fmap / geom / operation / DrawInts.java @ 43002
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1 | 40559 | jjdelcerro | /**
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2 | * gvSIG. Desktop Geographic Information System.
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3 | *
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4 | * Copyright (C) 2007-2013 gvSIG Association.
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5 | *
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6 | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | * as published by the Free Software Foundation; either version 3
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9 | * of the License, or (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | * MA 02110-1301, USA.
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20 | *
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21 | * For any additional information, do not hesitate to contact us
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22 | * at info AT gvsig.com, or visit our website www.gvsig.com.
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23 | */
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24 | 40435 | jjdelcerro | package org.gvsig.fmap.geom.operation; |
25 | |||
26 | import java.awt.Graphics2D; |
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27 | import java.awt.geom.AffineTransform; |
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28 | import java.awt.geom.PathIterator; |
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29 | |||
30 | 42982 | fdiaz | import org.slf4j.Logger; |
31 | import org.slf4j.LoggerFactory; |
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32 | |||
33 | 40435 | jjdelcerro | import org.gvsig.fmap.geom.Geometry; |
34 | 42982 | fdiaz | import org.gvsig.fmap.geom.Geometry.SUBTYPES; |
35 | 43002 | fdiaz | import org.gvsig.fmap.geom.GeometryException; |
36 | 40435 | jjdelcerro | import org.gvsig.fmap.geom.GeometryLocator; |
37 | import org.gvsig.fmap.geom.GeometryManager; |
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38 | 43002 | fdiaz | import org.gvsig.fmap.geom.aggregate.MultiLine; |
39 | import org.gvsig.fmap.geom.aggregate.MultiPolygon; |
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40 | import org.gvsig.fmap.geom.aggregate.MultiSurface; |
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41 | 40435 | jjdelcerro | import org.gvsig.fmap.geom.exception.CreateGeometryException; |
42 | 43002 | fdiaz | import org.gvsig.fmap.geom.primitive.Curve; |
43 | 40435 | jjdelcerro | import org.gvsig.fmap.geom.primitive.GeneralPathX; |
44 | 43002 | fdiaz | import org.gvsig.fmap.geom.primitive.Surface; |
45 | 42710 | dmartinezizquierdo | import org.gvsig.fmap.geom.type.GeometryType; |
46 | 40435 | jjdelcerro | import org.gvsig.fmap.mapcontext.ViewPort; |
47 | import org.gvsig.fmap.mapcontext.rendering.symbols.CartographicSupport; |
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48 | import org.gvsig.fmap.mapcontext.rendering.symbols.ISymbol; |
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49 | import org.gvsig.tools.task.Cancellable; |
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50 | |||
51 | 42982 | fdiaz | /**
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52 | * @author gvSIG Team
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53 | *
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54 | */
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55 | 40435 | jjdelcerro | public class DrawInts extends GeometryOperation { |
56 | private static final GeometryManager geomManager = GeometryLocator.getGeometryManager(); |
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57 | public static final String NAME = "drawInts"; |
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58 | public static int CODE = Integer.MIN_VALUE; |
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59 | |||
60 | final static private Logger logger = LoggerFactory.getLogger(DrawInts.class); |
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61 | |||
62 | public Object invoke(Geometry geom, GeometryOperationContext ctx) throws GeometryOperationException{ |
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63 | DrawOperationContext doc=(DrawOperationContext)ctx; |
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64 | ViewPort viewPort = doc.getViewPort(); |
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65 | ISymbol symbol = doc.getSymbol(); |
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66 | Graphics2D g=doc.getGraphics();
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67 | Cancellable cancel=doc.getCancellable(); |
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68 | 43002 | fdiaz | try {
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69 | if (doc.hasDPI()) {
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70 | double previousSize = ((CartographicSupport) symbol).toCartographicSize(viewPort, doc.getDPI(), geom);
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71 | // draw it as normally
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72 | Geometry transformedGeometry; |
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73 | transformedGeometry = transformGeometry(geom.cloneGeometry(), viewPort.getAffineTransform()); |
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74 | 42710 | dmartinezizquierdo | |
75 | 43002 | fdiaz | // the AffineTransform has to be null because the transformToInts method reprojects the geometry
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76 | symbol.draw(g, null, transformedGeometry, doc.getFeature(), cancel);
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77 | 42710 | dmartinezizquierdo | |
78 | 43002 | fdiaz | // restore previous size
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79 | ((CartographicSupport) symbol).setCartographicSize(previousSize, geom); |
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80 | } else {
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81 | // Geometry decimatedShape = transformToInts(geom, viewPort.getAffineTransform());
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82 | Geometry transformedGeometry = transformGeometry(geom.cloneGeometry(), viewPort.getAffineTransform()); |
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83 | symbol.draw(g, viewPort.getAffineTransform(), transformedGeometry, doc.getFeature(), cancel); |
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84 | } |
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85 | } catch (GeometryException e) {
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86 | throw new GeometryOperationException(e); |
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87 | 40435 | jjdelcerro | } |
88 | |||
89 | return null; |
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90 | } |
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91 | |||
92 | 43002 | fdiaz | /**
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93 | * @param geom
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94 | * @param affineTransform
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95 | * @return
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96 | * @throws GeometryException
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97 | */
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98 | private Geometry transformGeometry(Geometry geom, AffineTransform affineTransform) throws GeometryException { |
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99 | if(geom.canBeTransformed(affineTransform)){
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100 | geom.transform(affineTransform); |
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101 | return geom;
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102 | } |
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103 | if(geom instanceof Curve || geom instanceof Curve){ |
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104 | MultiLine lines = geom.toLines(); |
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105 | lines.transform(affineTransform); |
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106 | return lines;
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107 | } |
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108 | if(geom instanceof Surface || geom instanceof MultiSurface){ |
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109 | MultiPolygon polygons = geom.toPolygons(); |
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110 | polygons.transform(affineTransform); |
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111 | return polygons;
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112 | } |
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113 | return null; |
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114 | } |
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115 | |||
116 | public int getOperationIndex() { |
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117 | 40435 | jjdelcerro | return CODE;
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118 | } |
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119 | |||
120 | private Geometry transformToInts(Geometry gp, AffineTransform at) throws CreateGeometryException { |
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121 | GeneralPathX newGp = new GeneralPathX();
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122 | double[] theData = new double[6]; |
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123 | double[] aux = new double[6]; |
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124 | |||
125 | // newGp.reset();
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126 | PathIterator theIterator;
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127 | int theType;
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128 | int numParts = 0; |
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129 | |||
130 | java.awt.geom.Point2D ptDst = new java.awt.geom.Point2D.Double();
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131 | java.awt.geom.Point2D ptSrc = new java.awt.geom.Point2D.Double();
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132 | boolean bFirst = true; |
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133 | int xInt, yInt, antX = -1, antY = -1; |
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134 | |||
135 | |||
136 | theIterator = gp.getPathIterator(null); //, flatness); |
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137 | int numSegmentsAdded = 0; |
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138 | while (!theIterator.isDone()) {
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139 | theType = theIterator.currentSegment(theData); |
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140 | |||
141 | switch (theType) {
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142 | case PathIterator.SEG_MOVETO: |
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143 | numParts++; |
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144 | ptSrc.setLocation(theData[0], theData[1]); |
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145 | at.transform(ptSrc, ptDst); |
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146 | antX = (int) ptDst.getX();
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147 | antY = (int) ptDst.getY();
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148 | newGp.moveTo(antX, antY); |
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149 | numSegmentsAdded++; |
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150 | bFirst = true;
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151 | break;
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152 | |||
153 | case PathIterator.SEG_LINETO: |
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154 | ptSrc.setLocation(theData[0], theData[1]); |
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155 | at.transform(ptSrc, ptDst); |
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156 | xInt = (int) ptDst.getX();
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157 | yInt = (int) ptDst.getY();
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158 | if ((bFirst) || ((xInt != antX) || (yInt != antY)))
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159 | { |
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160 | newGp.lineTo(xInt, yInt); |
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161 | antX = xInt; |
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162 | antY = yInt; |
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163 | bFirst = false;
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164 | numSegmentsAdded++; |
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165 | } |
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166 | break;
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167 | |||
168 | case PathIterator.SEG_QUADTO: |
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169 | at.transform(theData,0,aux,0,2); |
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170 | newGp.quadTo(aux[0], aux[1], aux[2], aux[3]); |
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171 | numSegmentsAdded++; |
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172 | break;
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173 | |||
174 | case PathIterator.SEG_CUBICTO: |
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175 | at.transform(theData,0,aux,0,3); |
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176 | newGp.curveTo(aux[0], aux[1], aux[2], aux[3], aux[4], aux[5]); |
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177 | numSegmentsAdded++; |
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178 | break;
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179 | |||
180 | case PathIterator.SEG_CLOSE: |
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181 | if (numSegmentsAdded < 3) { |
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182 | newGp.lineTo(antX, antY); |
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183 | } |
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184 | newGp.closePath(); |
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185 | |||
186 | break;
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187 | } //end switch
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188 | |||
189 | theIterator.next(); |
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190 | } //end while loop
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191 | |||
192 | Geometry geom = null;
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193 | 42710 | dmartinezizquierdo | GeometryType geometryType = gp.getGeometryType(); |
194 | 40435 | jjdelcerro | |
195 | 42710 | dmartinezizquierdo | if(geometryType.isTypeOf(Geometry.TYPES.POINT)){
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196 | geom = geomManager.createPoint(ptDst.getX(), ptDst.getY(), SUBTYPES.GEOM2D); |
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197 | 42982 | fdiaz | } else if(geometryType.isTypeOf(Geometry.TYPES.MULTIPOINT)){ |
198 | geom = geomManager.createMultiPoint(newGp, SUBTYPES.GEOM2D); |
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199 | 42710 | dmartinezizquierdo | } else if(geometryType.isTypeOf(Geometry.TYPES.CURVE)){ |
200 | geom = geomManager.createCurve(newGp, SUBTYPES.GEOM2D); |
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201 | 42982 | fdiaz | } else if(geometryType.isTypeOf(Geometry.TYPES.MULTICURVE)){ |
202 | geom = geomManager.createMultiCurve(newGp, SUBTYPES.GEOM2D); |
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203 | 42710 | dmartinezizquierdo | } else if(geometryType.isTypeOf(Geometry.TYPES.SURFACE)){ |
204 | geom = geomManager.createSurface(newGp, SUBTYPES.GEOM2D); |
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205 | 42982 | fdiaz | } else if(geometryType.isTypeOf(Geometry.TYPES.MULTISURFACE)){ |
206 | geom = geomManager.createMultiSurface(newGp, SUBTYPES.GEOM2D); |
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207 | 40435 | jjdelcerro | } |
208 | return geom;
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209 | } |
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210 | |||
211 | 42982 | fdiaz | /**
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212 | *
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213 | */
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214 | 40435 | jjdelcerro | public static void register() { |
215 | 42710 | dmartinezizquierdo | |
216 | 40435 | jjdelcerro | GeometryManager gm = GeometryLocator.getGeometryManager(); |
217 | CODE = gm.getGeometryOperationCode(NAME); |
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218 | geomManager.registerGeometryOperation(NAME, new DrawInts());
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219 | } |
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220 | |||
221 | |||
222 | } |