How to use

getColumns

method

in

org.deegree.coverage.raster.data.nio.PixelInterleavedRasterData

private TextureTile getTextureTile( double minX, double minY, double maxX, double maxY ) {
  int width = (int) ( ( maxX - minX ) / res );
  int height = (int) ( ( maxY - minY ) / res );
  LOG.debug( "Fetching texture tile (" + width + "x" + height + ") via WMSClient." );
  Envelope bbox = fac.createEnvelope( minX, minY, maxX, maxY, requestedCRS );
  SimpleRaster raster = null;
  try {
    raster = getMapAsSimpleRaster( client, layers, width, height, bbox, requestedCRS, requestedFormat, true,
                    true, requestTimeout ).first;
    LOG.debug( "Success" );
  } catch ( IOException e ) {
    LOG.debug( "Failed: " + e.getMessage(), e );
    // this must never happen, cause the above request uses errorsInImage=true
    throw new RuntimeException( e.getMessage() );
  }
  PixelInterleavedRasterData rasterData = (PixelInterleavedRasterData) raster.getRasterData();
  return new TextureTile( minX, minY, maxX, maxY, rasterData.getColumns(), rasterData.getRows(),
              rasterData.getByteBuffer(), true, true );
}

int effectiveCols = raster.getColumns();
int effectiveRows = raster.getRows();
int subWidth = clampSize( getColumns(), dstX, effectiveCols, 0, width );
int subHeight = clampSize( getRows(), dstY, effectiveRows, 0, height );

private void setSubset( PixelInterleavedRasterData targetData, int x0, int y0, int width, int height,
            RasterData sourceRaster ) {
  // clamp to maximum possible size
  int subWidth = min( targetData.getColumns() - x0, width, sourceRaster.getColumns() );
  int subHeight = min( targetData.getRows() - y0, height, sourceRaster.getRows() );
  byte[] tmp = new byte[targetData.getDataInfo().getDataSize()];
  for ( int y = 0; y < subHeight; y++ ) {
    for ( int x = 0; x < subWidth; x++ ) {
      byte[] color = new byte[3];
      byte[] c = new byte[1];
      c = sourceRaster.getSample( x, y, 0, c );
      color[0] = c[0];
      c = sourceRaster.getSample( x, y, 1, c );
      color[1] = c[0];
      c = sourceRaster.getSample( x, y, 2, c );
      color[2] = c[0];
      if ( !shouldBeTransparent( color ) ) {
        targetData.setSample( x0 + x, y0 + y, 0, sourceRaster.getSample( x, y, 0, tmp ) );
        targetData.setSample( x0 + x, y0 + y, 1, sourceRaster.getSample( x, y, 1, tmp ) );
        targetData.setSample( x0 + x, y0 + y, 2, sourceRaster.getSample( x, y, 2, tmp ) );
      }
    }
  }
}