How to use

getNumXTiles

method

in

java.awt.image.WritableRenderedImage

/**
 * Sets every samples in the given image to the given value. This method is typically used for
 * clearing an image content.
 *
 * @param image The image to fill.
 * @param value The value to to given to every samples.
 */
public static void fill(final WritableRenderedImage image, final Number value) {
  int y = image.getMinTileY();
  for (int ny = image.getNumYTiles(); --ny >= 0; ) {
    int x = image.getMinTileX();
    for (int nx = image.getNumXTiles(); --nx >= 0; ) {
      final WritableRaster raster = image.getWritableTile(x, y);
      try {
        fill(raster.getDataBuffer(), value);
      } finally {
        image.releaseWritableTile(x, y);
      }
    }
  }
}

/**
 * Sets every samples in the given image to the given value. This method is typically used
 * for clearing an image content.
 *
 * @param image The image to fill.
 * @param value The value to be given to every samples.
 */
public static void fill(final WritableRenderedImage image, final Number value) {
  int y = image.getMinTileY();
  for (int ny = image.getNumYTiles(); --ny >= 0; y++) {
    int x = image.getMinTileX();
    for (int nx = image.getNumXTiles(); --nx >= 0; x++) {
      final WritableRaster raster = image.getWritableTile(x, y);
      try {
        fill(raster.getDataBuffer(), value);
      } finally {
        image.releaseWritableTile(x, y);
      }
    }
  }
}

/**
 * Sets every samples in the given image to the given value. This method is typically used
 * for clearing an image content.
 *
 * @param image The image to fill.
 * @param value The value to to given to every samples.
 */
public static void fill(final WritableRenderedImage image, final Number value) {
  int y = image.getMinTileY();
  for (int ny = image.getNumYTiles(); --ny >= 0;) {
    int x = image.getMinTileX();
    for (int nx = image.getNumXTiles(); --nx >= 0;) {
      final WritableRaster raster = image.getWritableTile(x, y);
      try {
        fill(raster.getDataBuffer(), value);
      } finally {
        image.releaseWritableTile(x, y);
      }
    }
  }
}

|| renderedImage.getNumXTiles() != writableRI.getNumXTiles()
|| renderedImage.getNumYTiles() != writableRI.getNumYTiles()
|| renderedImage.getTileGridXOffset() != writableRI.getTileGridXOffset()

final int tileHeight = image.getTileHeight();
final int minTileY   = image.getMinTileY();
final int maxTileY   = image.getNumXTiles() + minTileY - 1; // inclusive.
while (!stack.isEmpty()) {
  final int y = stack.removeLast() + ymin;

|| renderedImage.getHeight() != writableRI.getHeight()
|| rimtx != wrimtx || rimty != wrimty
|| renderedImage.getNumXTiles() != writableRI.getNumXTiles()
|| renderedImage.getNumYTiles() != writableRI.getNumYTiles())
throw new IllegalArgumentException("rendered image and writable rendered image dimensions are not conform"+renderedImage+writableRI);