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import java.awt.Image;
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import java.awt.image.BufferedImage;
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import java.util.Map;
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import org.apache.commons.lang3.StringUtils;
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import org.cresques.cts.ICoordTrans;
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import org.gvsig.fmap.dal.exception.DataException;
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import org.gvsig.fmap.dal.feature.Feature;
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import org.gvsig.fmap.dal.feature.FeatureQuery;
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double value = this.grid[x][y];
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if( value > 0 ) {
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int icolor = (int) (value * maxIndexColor / maxValue);
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// icolor = icolor < 0 ? 0 : icolor >= maxIndexColor ? maxIndexColor - 1 : icolor;
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c = toolsSwingManager.alphaBlendingWithOpaqueBackground(
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new Color(img.getRGB(x, y)),
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colorTable[icolor]
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LOG.warn("Problems drawing heatmap", ex);
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}
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}
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private Color blend(Color dst, Color src) {
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//
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// https://en.wikipedia.org/wiki/Alpha_compositing#Alpha_blending
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//
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// when the destination background is opaque
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//
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// double outa = 1;
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double srca = src.getAlpha() / 255.0;
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double srca_1 = (1 - srca);
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Color color = new Color(
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(int)(src.getRed() * srca + dst.getRed() * srca_1) & 0xff,
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(int)(src.getGreen()* srca + dst.getGreen()* srca_1) & 0xff,
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(int)(src.getBlue() * srca + dst.getBlue() * srca_1) & 0xff
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);
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return color;
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}
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}
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private ISymbol defaultSymbol;
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private String fieldName;
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private Image imageLegend;
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private HeatmapColorTable hmColorTable;
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private Color rampColdColor;
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private Color rampHotColor;
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private int rampNumColors;
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public DefaultHeatmapLegend() {
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this.defaultSymbol = new SimpleTextSymbol();
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this.algorithm.init(image.getWidth(), image.getHeight());
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super.draw(image, g, viewPort, cancel, scale, queryParameters, coordTrans, featureStore, featureQuery, dpi);
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if( !cancel.isCanceled() ) {
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//
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// Para PACO, despues borralo.
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//
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// Probablemente aqui habria que llamar a getHeatMapColorTable()
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//
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//
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hmColorTable = null;
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if( this.useRamp() || !useAlphaInColorTable ) {
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hmColorTable = new HeatmapColorTable(this.getSourceColorTable());
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} else {
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hmColorTable = new HeatmapColorTable(this.getSourceColorTable(),colorTableColdColorAlpha, colorTableHotColorAlpha);
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}
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this.algorithm.draw(image, g, hmColorTable.getColorTable(), cancel);
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this.algorithm.draw(image, g, this.getHeatMapColorTable().getColorTable(), cancel);
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}
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}
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}
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@Override
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public void setColorTable(int numColor, Color first, Color last) {
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//
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// Para PACO, despues borralo.
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//
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// Probablemente aqui sobra la creacion de la tabla de color
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// y solo se deberian guardar los dos colores y numColor en propiedades
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// de la instancia.
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// De hacer eso, estaria bien a?adir esas propiedades al interface de la
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// leyenda para que las use el GUI de esta.
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//
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Color[] table = new Color[numColor];
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double deltaRed = (last.getRed() - first.getRed()) / numColor;
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double deltaGreen = (last.getGreen() - first.getGreen()) / numColor;
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double deltaBlue = (last.getBlue() - first.getBlue()) / numColor;
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double deltaAlpha = (last.getAlpha() - first.getAlpha()) / numColor;
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for( int i = 0; i < numColor; i++ ) {
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table[i] = new Color(
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(int) (first.getRed() + i * deltaRed),
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(int) (first.getGreen() + i * deltaGreen),
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(int) (first.getBlue() + i * deltaBlue),
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(int) (first.getAlpha() + i * deltaAlpha)
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);
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}
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public void setColorTable(int numColors, Color coldColor, Color hotColor) {
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this.isRamp = true;
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this.sourceColorTable = table;
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this.rampColdColor = coldColor;
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this.rampHotColor = hotColor;
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this.rampNumColors = numColors;
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this.imageLegend = null;
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this.hmColorTable = null;
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this.fireDefaultSymbolChangedEvent(new SymbolLegendEvent(null,null));
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private HeatmapColorTable getHeatMapColorTable() {
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if (this.hmColorTable == null) {
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if (this.useRamp() || !useAlphaInColorTable) {
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//
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// Para PACO, despues borralo.
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//
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// Creo que aqui queris llamar a:
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// public HeatmapColorTable(Color coldColor, Color hotColor, int coldAlpha, int hotAlpha, int length){
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// y en setColorTable con un gradiente guardarte los colores de inicio y fin
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// y el numero de colores.
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// Si es asi habria que a?adir esos tres valores tambien a la descripcion de
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// persistencia (el xml) y en el load y save state.
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//
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this.hmColorTable = new HeatmapColorTable(this.getSourceColorTable());
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if (this.useRamp()) {
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this.hmColorTable = new HeatmapColorTable(this.rampColdColor, this.rampHotColor, this.rampNumColors);
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} else {
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if(useAlphaInColorTable) {
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this.hmColorTable = new HeatmapColorTable(this.getSourceColorTable(), colorTableColdColorAlpha, colorTableHotColorAlpha);
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} else {
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this.hmColorTable =
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new HeatmapColorTable(this.getSourceColorTable(), colorTableColdColorAlpha, colorTableHotColorAlpha);
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this.hmColorTable = new HeatmapColorTable(this.getSourceColorTable());
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}
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}
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}
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return this.hmColorTable;
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public void setColorTableHotColorAlpha(int colorTableHotColorAlpha) {
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this.colorTableHotColorAlpha = colorTableHotColorAlpha;
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this.imageLegend = null;
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this.hmColorTable = null;
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}
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@Override
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public void setColorTableColdColorAlpha(int colorTableColdColorAlpha) {
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this.colorTableColdColorAlpha = colorTableColdColorAlpha;
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this.imageLegend = null;
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this.hmColorTable = null;
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}
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@Override
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public boolean setUseAlphaInColorTable(boolean use) {
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boolean x = this.useAlphaInColorTable;
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this.useAlphaInColorTable = use;
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this.hmColorTable = null;
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return x;
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}
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this.colorTableColdColorAlpha = state.getInt("colorTableColdColorAlpha");
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this.useAlphaInColorTable = state.getBoolean("useAlphaInColorTable");
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this.fieldName = state.getString("fieldName");
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this.rampNumColors = state.getInt("rampNumColors");
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this.rampColdColor = (Color)state.get("rampColdColor");
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this.rampHotColor = (Color)state.get("rampHotColor");
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this.algorithm = new DensityAlgorithm(state.getInt("distance"));
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}
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@Override
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public int getRampNumColors() {
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return this.rampNumColors;
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}
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@Override
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public Color getRampColdColor() {
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return this.rampColdColor;
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}
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@Override
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public Color getRampHotColor() {
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return this.rampHotColor;
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}
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@Override
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public void saveToState(PersistentState state) throws PersistenceException {
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super.saveToState(state);
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state.set("isRamp", isRamp);
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state.set("useAlphaInColorTable", useAlphaInColorTable);
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state.set("fieldName", fieldName);
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state.set("distance", algorithm.distance);
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state.set("rampNumColors", rampNumColors);
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state.set("rampColdColor", rampColdColor);
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state.set("rampHotColor", rampHotColor);
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}
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private static class HeatmapColorTable {
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private Color[] sourceColorTable = null;
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public HeatmapColorTable(Color[] sourceColorTable){
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this.sourceColorTable = sourceColorTable;
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this.length = sourceColorTable.length;
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}
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public HeatmapColorTable(Color[] sourceColorTable, int coldAlpha, int hotAlpha){
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this.sourceColorTable = sourceColorTable;
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this.coldAlpha = coldAlpha;
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this.hotAlpha = hotAlpha;
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this.length = sourceColorTable.length;
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}
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public HeatmapColorTable(Color coldColor, Color hotColor, int coldAlpha, int hotAlpha, int length){
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public HeatmapColorTable(Color coldColor, Color hotColor, int length){
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this.coldColor = coldColor;
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this.hotColor = hotColor;
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this.coldAlpha = coldAlpha;
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this.hotAlpha = hotAlpha;
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this.length = length;
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}
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public Color[] getColorTable(){
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if(targetColorTable==null){
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if(sourceColorTable!=null){ //Tenemos tabla de color
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double alphaDelta = getDelta(coldAlpha, hotAlpha, length);
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targetColorTable = new Color[sourceColorTable.length];
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for (int i = 0; i < sourceColorTable.length; i++) {
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Color sourceColor = sourceColorTable[i];
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if (coldAlpha >= 0 && hotAlpha >= 0) {
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targetColorTable[i] =
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new Color(sourceColor.getRed(),
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sourceColor.getGreen(),
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sourceColor.getBlue(),
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coldAlpha + (int) (i * alphaDelta));
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} else {
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targetColorTable[i] = sourceColor;
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if (coldAlpha >= 0 || hotAlpha >= 0) { //Se usa alpha para la tabla de color
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double alphaDelta = getDelta(coldAlpha, hotAlpha, sourceColorTable.length);
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targetColorTable = new Color[sourceColorTable.length];
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for (int i = 0; i < sourceColorTable.length; i++) {
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Color sourceColor = sourceColorTable[i];
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if (coldAlpha >= 0 && hotAlpha >= 0) {
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targetColorTable[i] =
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new Color(sourceColor.getRed(), sourceColor.getGreen(), sourceColor.getBlue(),
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coldAlpha + (int) (i * alphaDelta));
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} else {
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targetColorTable[i] = sourceColor;
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}
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}
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} else { //No se usa alpha para la tabla de color
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targetColorTable = sourceColorTable;
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}
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} else { //Tenemos gradiente
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int coldRed = coldColor.getRed();
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int coldGreen = coldColor.getGreen();
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int hotGreen = hotColor.getGreen();
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int hotRed = hotColor.getRed();
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int coldBlue = coldColor.getBlue();
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int hotBlue = hotColor.getBlue();
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double redDelta = getDelta(coldRed, hotRed, length);
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double greenDelta = getDelta(coldGreen, hotGreen, length);
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double blueDelta = getDelta(coldBlue, hotBlue, length);
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double alphaDelta = getDelta(coldAlpha, hotAlpha, length);
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} else { // Tenemos gradiente
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targetColorTable = new Color[length];
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for (int i = 0; i < sourceColorTable.length; i++) {
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double deltaRed = (hotColor.getRed() - coldColor.getRed()) / length;
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double deltaGreen = (hotColor.getGreen() - coldColor.getGreen()) / length;
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double deltaBlue = (hotColor.getBlue() - coldColor.getBlue()) / length;
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double deltaAlpha = (hotColor.getAlpha() - coldColor.getAlpha()) / length;
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for (int i = 0; i < length; i++) {
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targetColorTable[i] =
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new Color(coldRed + (int) (i * redDelta),
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coldGreen + (int) (i * greenDelta),
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hotGreen + (int) (i * blueDelta),
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coldAlpha + (int) (i * alphaDelta));
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new Color(
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(int) (coldColor.getRed() + i * deltaRed),
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(int) (coldColor.getGreen() + i * deltaGreen),
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(int) (coldColor.getBlue() + i * deltaBlue),
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(int) (coldColor.getAlpha() + i * deltaAlpha));
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}
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}
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}
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return (x2-x1)/((double)lenght-1);
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}
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}
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}
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