Method Run

swig/java/apps/GDALProximity.java:255–412

(Band SrcBand, Band ProximityBand,
            float DistMult, float MaxDistance, float NoData,
            boolean HasBufferValue, float BufferValue, int TargetValues[])

    }

    public static void Run(Band SrcBand, Band ProximityBand,
            float DistMult, float MaxDistance, float NoData,
            boolean HasBufferValue, float BufferValue, int TargetValues[]) {

        /*
         * What is our maxdist value?
         */

        if (MaxDistance == -1.0F) {
            MaxDistance = SrcBand.GetXSize() + SrcBand.GetYSize();
        }

        /*
         * Create working band
         */

        Band WorkProximityBand = ProximityBand;
        Dataset WorkProximityDS = null;

        int ProxType = ProximityBand.getDataType();

        String tempFilename = null;

        if (ProxType == gdalconstConstants.GDT_Byte
                || ProxType == gdalconstConstants.GDT_UInt16
                || ProxType == gdalconstConstants.GDT_UInt32) {
            tempFilename = "/vsimem/proximity_" + String.valueOf(System.currentTimeMillis()) + ".tif";
            WorkProximityDS = gdal.GetDriverByName("GTiff").Create(tempFilename,
                    ProximityBand.getXSize(), ProximityBand.getYSize(), 1,
                    gdalconstConstants.GDT_Float32);
            WorkProximityBand = WorkProximityDS.GetRasterBand(1);
        }

        int xSize = WorkProximityBand.getXSize();
        int ySize = WorkProximityBand.getYSize();

        /*
         * Allocate buffers
         */

        short nearXBuffer[] = new short[xSize];
        short nearYBuffer[] = new short[xSize];
        int scanline[] = new int[xSize];
        float proximityBuffer[] = new float[xSize];

        /*
         * Loop from top to bottom of the image
         */

        for (int i = 0; i < xSize; i++) {
            nearXBuffer[i] = -1;
            nearYBuffer[i] = -1;
        }

        for (int iLine = 0; iLine < ySize; iLine++) {

            SrcBand.ReadRaster(0, iLine, xSize, 1, xSize, 1,
                    gdalconstConstants.GDT_Int32, scanline);