root / trunk / libraries / libRaster / src / org / gvsig / raster / grid / filter / RasterFilter.java @ 12333
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1 | 10740 | nacho | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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2 | *
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3 | * Copyright (C) 2006 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 | package org.gvsig.raster.grid.filter; |
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20 | |||
21 | import java.util.Hashtable; |
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22 | |||
23 | 10939 | nacho | import org.gvsig.raster.dataset.IBuffer; |
24 | 11714 | bsanchez | import org.gvsig.raster.dataset.Params; |
25 | 11496 | bsanchez | import org.gvsig.raster.shared.Extent; |
26 | 10740 | nacho | /**
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27 | * Filtro para raster. Ancestro de todos los filtros.
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28 | 12325 | bsanchez | *
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29 | 10740 | nacho | * @author Nacho Brodin (nachobrodin@gmail.com)
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30 | * @author Luis W. Sevilla (sevilla_lui@gva.es)
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31 | */
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32 | 11899 | bsanchez | public abstract class RasterFilter implements IRasterFilter, Cloneable { |
33 | 11963 | bsanchez | protected IBuffer raster = null; |
34 | protected int height = 0; |
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35 | protected int width = 0; |
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36 | protected Hashtable params = new Hashtable(); |
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37 | protected Extent extent = null; |
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38 | private int percent = 0; |
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39 | private boolean canceled = false; |
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40 | 11986 | bsanchez | private String fName = ""; |
41 | 10740 | nacho | /**
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42 | 11963 | bsanchez | * Variable que control la aplicaci?n o no del filtro. Si est? a false aunque est? en
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43 | * la pila el filtro no se ejecutar?.
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44 | 10740 | nacho | */
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45 | 11963 | bsanchez | protected boolean exec = true; |
46 | 11767 | nacho | |
47 | 11963 | bsanchez | /**
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48 | * @author Nacho Brodin (nachobrodin@gmail.com)
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49 | */
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50 | public static class Kernel { |
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51 | 11811 | bsanchez | public double[][] kernel = null; |
52 | protected double divisor = 0; |
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53 | 11963 | bsanchez | |
54 | 11811 | bsanchez | public Kernel(double[][] k) { |
55 | this.kernel = k;
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56 | 10740 | nacho | |
57 | 11811 | bsanchez | for (int i = 0; i < kernel.length; i++) |
58 | for (int j = 0; j < kernel[0].length; j++) |
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59 | divisor = divisor + kernel[i][j]; |
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60 | } |
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61 | 11963 | bsanchez | |
62 | 12030 | bsanchez | public Kernel(double[][] k,double divisor) { |
63 | 11811 | bsanchez | this.kernel = k;
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64 | this.divisor = divisor;
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65 | } |
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66 | 11963 | bsanchez | |
67 | 11811 | bsanchez | public double kernelOperation(Kernel k) { |
68 | double res = 0; |
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69 | for (int i = 0; i < kernel.length; i++) |
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70 | for (int j = 0; j < kernel[0].length; j++) |
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71 | res += kernel[i][j] * k.kernel[i][j]; |
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72 | return res;
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73 | } |
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74 | 11963 | bsanchez | |
75 | 11811 | bsanchez | public double convolution(Kernel k) { |
76 | double res = 0; |
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77 | res = this.kernelOperation(k);
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78 | if (this.divisor != 0) |
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79 | res = res / divisor; |
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80 | return Math.abs(res); |
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81 | } |
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82 | 11963 | bsanchez | |
83 | 10740 | nacho | public double getDivisor() { |
84 | return divisor;
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85 | } |
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86 | 11963 | bsanchez | |
87 | 10740 | nacho | public void setDivisor(double divisor) { |
88 | this.divisor = divisor;
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89 | } |
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90 | 11963 | bsanchez | |
91 | 12030 | bsanchez | public int getLado() { |
92 | 10740 | nacho | return kernel.length;
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93 | } |
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94 | 11963 | bsanchez | } |
95 | 10740 | nacho | |
96 | 11963 | bsanchez | /**
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97 | * Constructor
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98 | */
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99 | 11986 | bsanchez | public RasterFilter() {
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100 | 11963 | bsanchez | } |
101 | 10740 | nacho | |
102 | 11963 | bsanchez | /**
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103 | * Aplica el filtro sobre el raster pasado pixel a pixel
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104 | 12325 | bsanchez | * @throws InterruptedException
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105 | 11963 | bsanchez | */
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106 | 12325 | bsanchez | public void execute() throws InterruptedException { |
107 | 11811 | bsanchez | pre(); |
108 | percent = 0;
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109 | if (exec) {
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110 | 11930 | nacho | for (int row = 0; row < height; row ++) { |
111 | 11963 | bsanchez | for (int col = 0; col < width; col ++) |
112 | 11930 | nacho | process(col, row); |
113 | 12325 | bsanchez | if (Thread.currentThread().isInterrupted()) |
114 | throw new InterruptedException("Process execute Filter"); |
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115 | 11930 | nacho | percent = (row * 100) / height;
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116 | 11811 | bsanchez | } |
117 | } |
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118 | if (isCanceled())
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119 | return;
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120 | percent = 100;
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121 | post(); |
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122 | } |
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123 | 10740 | nacho | |
124 | 11963 | bsanchez | /**
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125 | 11811 | bsanchez | * A?ade un par?metro al filtro
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126 | 12325 | bsanchez | *
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127 | 11811 | bsanchez | * @param name Clave del par?metro
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128 | * @param param Objeto pasado como par?metro
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129 | */
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130 | 11963 | bsanchez | public void addParam(String name, Object param) { |
131 | 12180 | bsanchez | if (param != null) |
132 | 11963 | bsanchez | params.put(name, param); |
133 | 12180 | bsanchez | else
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134 | params.remove(name); |
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135 | 11963 | bsanchez | } |
136 | 10740 | nacho | |
137 | 11963 | bsanchez | /**
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138 | * Elimina un par?metro del filtro
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139 | * @param name Clave del par?metro a eliminar
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140 | */
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141 | 12030 | bsanchez | public void removeParam(String name) { |
142 | 11963 | bsanchez | params.remove(name); |
143 | } |
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144 | |||
145 | /**
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146 | * Obtiene un par?metro a partir de la clave
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147 | * @param name Par?metro
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148 | * @return Par?metro
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149 | */
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150 | 12030 | bsanchez | public Object getParam(String name) { |
151 | 11963 | bsanchez | return params.get(name);
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152 | } |
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153 | |||
154 | /**
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155 | 10740 | nacho | * @param extent The extent to set.
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156 | */
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157 | public void setExtent(Extent extent) { |
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158 | this.extent = extent;
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159 | } |
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160 | |||
161 | /**
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162 | * Obtiene true si el filtro va a ser ejecutado o false si no va a serlo
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163 | * @return
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164 | */
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165 | public boolean isExec() { |
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166 | return exec;
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167 | } |
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168 | |||
169 | /**
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170 | * Asigna el valor a la variable exec. Esta estar? a true si el filtro se ejecutar? la pr?xima
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171 | * vez que se repinte o false si no se ejecuta.
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172 | * @param exec
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173 | */
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174 | public void setExec(boolean exec) { |
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175 | this.exec = exec;
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176 | } |
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177 | |||
178 | 11811 | bsanchez | /**
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179 | * Establece si se ha de cancelar un proceso de filtrado o no.
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180 | * @param value
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181 | */
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182 | public void setCanceled(boolean value) { |
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183 | canceled = value; |
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184 | } |
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185 | 10740 | nacho | |
186 | 11811 | bsanchez | /**
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187 | * Devuelve si se ha cancelado el proceso de filtrar.
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188 | * @return
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189 | */
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190 | public boolean isCanceled() { |
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191 | return canceled;
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192 | } |
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193 | 11963 | bsanchez | |
194 | 11811 | bsanchez | /**
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195 | * Pone a cero el contador del porcentaje del proceso de filtrado
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196 | * @return
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197 | */
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198 | public void resetPercent() { |
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199 | percent = 0;
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200 | } |
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201 | 10740 | nacho | |
202 | 11811 | bsanchez | /**
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203 | * Obtiene el porcentaje recorrido del proceso de filtrado
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204 | * @return
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205 | */
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206 | public int getPercent() { |
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207 | return percent;
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208 | 11963 | bsanchez | } |
209 | 10740 | nacho | |
210 | 11963 | bsanchez | /**
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211 | * Funci?n que contiene el c?digo a ejecutar antes de aplicar el filtro
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212 | */
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213 | abstract public void pre(); |
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214 | 10740 | nacho | |
215 | 11963 | bsanchez | /**
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216 | * Funci?n que contiene el c?digo a ejecutar despues de aplicar el filtro
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217 | */
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218 | abstract public void post(); |
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219 | 11811 | bsanchez | |
220 | 11963 | bsanchez | /**
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221 | * Ejecuci?n del filtro para un pixel de la imagen
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222 | */
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223 | abstract public void process(int x, int y); |
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224 | 11811 | bsanchez | |
225 | 11963 | bsanchez | /**
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226 | * Obtiene el tipo de datos del raster de entrada
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227 | */
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228 | abstract public int getInRasterDataType(); |
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229 | 11811 | bsanchez | |
230 | 11963 | bsanchez | /**
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231 | * Obtiene el tipo de datos del raster de salida
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232 | */
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233 | abstract public int getOutRasterDataType(); |
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234 | 11811 | bsanchez | |
235 | 11963 | bsanchez | /**
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236 | * Obtiene el resultado del filtro despues de su ejecuci?n a trav?s de una clave
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237 | * @param name clave para obtener un objeto resultado del filtro.
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238 | */
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239 | abstract public Object getResult(String name); |
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240 | |||
241 | 11811 | bsanchez | /*
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242 | * (non-Javadoc)
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243 | * @see org.gvsig.raster.grid.filter.IRasterFilter#getGroup()
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244 | */
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245 | abstract public String getGroup(); |
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246 | 11963 | bsanchez | |
247 | 11811 | bsanchez | /**
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248 | * Obtener que datos puede tratar una interfaz con sus valores
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249 | 12030 | bsanchez | * @param nameFilter. Cada tipo de filtro puede tener parametros distintos
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250 | 11811 | bsanchez | * @return
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251 | */
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252 | 12030 | bsanchez | abstract public Params getUIParams(String nameFilter); |
253 | 11864 | bsanchez | |
254 | 11963 | bsanchez | /**
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255 | * Obtener que las entradas que puede aperecer un filtro en el interfaz
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256 | * @return
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257 | */
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258 | abstract public String[] getNames(); |
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259 | |||
260 | 12333 | bsanchez | /**
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261 | * Devolver? un booleano indicando si es visible o no en el panel de filtros.
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262 | * @return
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263 | */
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264 | public boolean isVisible() { |
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265 | return true; |
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266 | } |
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267 | |||
268 | 11986 | bsanchez | /* (non-Javadoc)
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269 | * @see java.lang.Object#clone()
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270 | 11963 | bsanchez | */
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271 | 11986 | bsanchez | public Object clone() throws CloneNotSupportedException { |
272 | return super.clone(); |
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273 | 11963 | bsanchez | } |
274 | |||
275 | /**
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276 | 11986 | bsanchez | * Devuelve el nombre interno del filtro
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277 | * @return the fName
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278 | 11963 | bsanchez | */
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279 | 11986 | bsanchez | public String getName() { |
280 | return fName;
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281 | 11963 | bsanchez | } |
282 | |||
283 | 11986 | bsanchez | /**
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284 | * @param name the fName to set
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285 | 11864 | bsanchez | */
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286 | 11986 | bsanchez | public void setName(String name) { |
287 | fName = name; |
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288 | 11864 | bsanchez | } |
289 | 10740 | nacho | } |