root / branches / v10 / libraries / libjni-gdal / src / es / gva / cit / jgdal / GdalColorTable.java @ 7847
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package es.gva.cit.jgdal; |
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public class GdalColorTable extends JNIBase{ |
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private native int getColorEntryCountNat(long cPtr); |
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private native short[] getColorEntryAsRGBNat(long cPtr, int pos); |
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/**
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* Constructor de ColorTable pasandole como par?metro la referencia al objeto
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* GdalColorTable en C
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*
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* @param cPtr direcci?n de memoria del objeto
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*/
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public GdalColorTable(long cPtr){ |
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this.cPtr=cPtr;
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} |
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/**
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* Obtiene
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* @return
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* @throws GdalException
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*/
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public int getColorEntryCount() throws GdalException{ |
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if(cPtr <= 0) |
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throw new GdalException("Error en getColorEntryCount(). La creaci?n de la tabla no tuvo exito"); |
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return getColorEntryCountNat(cPtr);
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} |
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/**
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* Obtiene la entrada de la tabla de color de la posici?n pasada por par?metro
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* y la devuelve en forma de objeto GdalColorEntry.
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* @param pos Posici?n de la entrada de la tabla
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* @return Objeto GdalColorEntry correspondiente a pos
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* @throws GdalException
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*/
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public GdalColorEntry getColorEntryAsRGB(int pos) throws GdalException{ |
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if(cPtr <= 0) |
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throw new GdalException("Error en getColorEntryAsRGB(). La creaci?n de la tabla no tuvo exito"); |
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GdalColorEntry entry = new GdalColorEntry();
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short[] values = getColorEntryAsRGBNat(cPtr, pos); |
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entry.c1 = values[0];
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entry.c2 = values[1];
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entry.c3 = values[2];
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entry.c4 = values[3];
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if(values == null) |
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throw new GdalException("Error en getColorEntryAsRGB(). Posici?n de la tabla de color inexistente."); |
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return entry;
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} |
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} |