root / tags / v2_0_0_Build_2055 / libraries / libFMap_controls / src / org / gvsig / fmap / mapcontrol / tools / grid / Grid.java @ 38960
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1 | 23645 | vcaballero | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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2 | *
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3 | * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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4 | *
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5 | * This program is free software; you can redistribute it and/or
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6 | * modify it under the terms of the GNU General Public License
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7 | * as published by the Free Software Foundation; either version 2
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8 | * of the License, or (at your option) any later version.
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9 | *
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10 | * This program is distributed in the hope that it will be useful,
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11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 | * GNU General Public License for more details.
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14 | *
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15 | * You should have received a copy of the GNU General Public License
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16 | * along with this program; if not, write to the Free Software
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17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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18 | *
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19 | * For more information, contact:
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20 | *
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21 | * Generalitat Valenciana
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22 | * Conselleria d'Infraestructures i Transport
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23 | * Av. Blasco Ib??ez, 50
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24 | * 46010 VALENCIA
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25 | * SPAIN
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26 | *
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27 | * +34 963862235
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28 | * gvsig@gva.es
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29 | * www.gvsig.gva.es
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30 | *
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31 | * or
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32 | *
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33 | * IVER T.I. S.A
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34 | * Salamanca 50
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35 | * 46005 Valencia
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36 | * Spain
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37 | *
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38 | * +34 963163400
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39 | * dac@iver.es
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40 | */
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41 | package org.gvsig.fmap.mapcontrol.tools.grid; |
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42 | |||
43 | import java.awt.Color; |
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44 | import java.awt.geom.Point2D; |
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45 | |||
46 | import org.gvsig.fmap.geom.primitive.Envelope; |
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47 | import org.gvsig.fmap.mapcontext.ViewPort; |
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48 | 30349 | jpiera | import org.gvsig.fmap.mapcontrol.MapControlDrawer; |
49 | 23645 | vcaballero | |
50 | |||
51 | /**
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52 | * Clase encargada de gestionar las diferentes operaciones que se realizan
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53 | * sobre el grid.
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54 | *
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55 | * @author Vicente Caballero Navarro
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56 | */
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57 | public class Grid { |
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58 | public static boolean DefaultShowGrid = false; |
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59 | public static double DefaultGridSizeX = 1000; |
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60 | public static double DefaultGridSizeY = 1000; |
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61 | public static boolean DefaultAdjustGrid=false; |
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62 | |||
63 | public static boolean SHOWGRID = false; |
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64 | public static double GRIDSIZEX = 1000; |
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65 | public static double GRIDSIZEY = 1000; |
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66 | public static boolean ADJUSTGRID=false; |
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67 | |||
68 | private boolean grid = SHOWGRID; |
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69 | private double gridSizeX = GRIDSIZEX; |
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70 | private double gridSizeY = GRIDSIZEY; |
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71 | private ViewPort viewport=null; |
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72 | private boolean adjustGrid=ADJUSTGRID; |
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73 | |||
74 | /**
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75 | * Inserta el viewPort.
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76 | *
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77 | * @param vp
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78 | */
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79 | public void setViewPort(ViewPort vp) { |
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80 | viewport = vp; |
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81 | |||
82 | // if (gridSize == 0) {
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83 | // gridSize = viewport.toMapDistance(25);
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84 | // }
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85 | } |
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86 | |||
87 | /**
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88 | * Ajusta un punto de la imagen que se pasa como par?metro al handler m?s
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89 | * cercano si se encuentra lo suficientemente cerca y devuelve la
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90 | * distancia del punto original al punto ajustado
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91 | *
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92 | * @param point
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93 | *
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94 | * @return Distancia del punto que se pasa como par?metro al punto ajustado
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95 | */
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96 | public double adjustToGrid(Point2D point) { |
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97 | if (adjustGrid) {
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98 | Point2D auxp = new Point2D.Double(0, 0); |
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99 | double x = ((point.getX() + gridSizeX) % gridSizeX) -
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100 | ((auxp.getX()) % gridSizeX); |
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101 | double y = ((point.getY() + gridSizeY) % gridSizeY) -
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102 | ((auxp.getY()) % gridSizeY); |
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103 | Point2D p = (Point2D) point.clone(); |
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104 | if (x>gridSizeX/2){ |
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105 | x=x-gridSizeX; |
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106 | } |
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107 | if (y>gridSizeY/2){ |
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108 | y=y-gridSizeY; |
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109 | } |
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110 | point.setLocation((point.getX() - x), (point.getY() - y)); |
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111 | return p.distance(point);
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112 | } |
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113 | return Double.MAX_VALUE; |
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114 | } |
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115 | |||
116 | /**
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117 | * Dibuja el grid sobre el graphics que se pasa como par?metro
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118 | *
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119 | * @param g Graphics sobre el que dibujar el grid.
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120 | */
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121 | 30349 | jpiera | public void drawGrid(MapControlDrawer mapControlDrawer) { |
122 | 23645 | vcaballero | if (!grid) {
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123 | return;
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124 | } |
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125 | if (viewport.fromMapDistance(gridSizeX) > 3 |
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126 | && viewport.fromMapDistance(gridSizeY) > 3) {
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127 | 30349 | jpiera | mapControlDrawer.setColor(Color.lightGray);
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128 | 23645 | vcaballero | |
129 | Envelope extent = viewport.getAdjustedExtent(); |
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130 | Point2D auxp = new Point2D.Double(0, 0); |
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131 | if (extent==null) |
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132 | return;
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133 | for (double i = extent.getMinimum(0); i < (extent.getMaximum(0) + gridSizeX); i += gridSizeX) { |
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134 | 38710 | jldominguez | for (double j = extent.getMinimum(1); j < (extent.getMaximum(1) + gridSizeY); j += gridSizeY) { |
135 | 23645 | vcaballero | Point2D po = new Point2D.Double(i, j); |
136 | Point2D point = viewport.fromMapPoint(po);
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137 | double x = ((po.getX() + gridSizeX) % gridSizeX)
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138 | - ((auxp.getX()) % gridSizeX); |
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139 | double y = ((po.getY() + gridSizeY) % gridSizeY)
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140 | - ((auxp.getY()) % gridSizeY); |
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141 | x = (point.getX() - viewport.fromMapDistance(x)); |
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142 | y = (point.getY() + viewport.fromMapDistance(y)); |
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143 | |||
144 | 30349 | jpiera | mapControlDrawer.drawRect((int) x, (int) y, 1, 1); |
145 | 23645 | vcaballero | |
146 | } |
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147 | } |
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148 | } |
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149 | } |
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150 | |||
151 | /**
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152 | * Inserta un boolean que indica si se utiliza o no el grid y de esta forma
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153 | * dibujarse.
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154 | *
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155 | * @param b boolean
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156 | */
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157 | public void setShowGrid(boolean b) { |
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158 | grid = b; |
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159 | } |
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160 | |||
161 | /**
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162 | * Devuelve true si se usa el grid.
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163 | *
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164 | * @return True si se usa el grid.
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165 | */
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166 | public boolean isShowGrid() { |
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167 | return grid;
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168 | } |
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169 | |||
170 | /**
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171 | * Inserta un boolean que indica si se ajusta o no al grid y de esta forma
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172 | * dibujarse.
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173 | *
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174 | * @param b boolean
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175 | */
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176 | public void setAdjustGrid(boolean b) { |
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177 | adjustGrid = b; |
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178 | } |
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179 | |||
180 | /**
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181 | * Devuelve true si se ha de ajustar al grid.
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182 | *
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183 | * @return True si se est? ajustando al grid.
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184 | */
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185 | public boolean isAdjustGrid() { |
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186 | return adjustGrid;
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187 | } |
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188 | |||
189 | public double getGridSizeX() { |
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190 | return gridSizeX;
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191 | } |
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192 | public double getGridSizeY() { |
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193 | return gridSizeY;
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194 | } |
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195 | public void setGridSizeX(double gridSize) { |
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196 | this.gridSizeX = gridSize;
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197 | } |
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198 | public void setGridSizeY(double gridSize) { |
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199 | this.gridSizeY = gridSize;
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200 | } |
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201 | } |