resize method

@override void resize(int width, int height)

Implementation

@override
void resize(int width, int height) {
  final w = width * _cellWidth + options.padding * 2;
  final h = height * _cellHeight + options.padding * 2;
  if (width <= 0 ||
      height <= 0 ||
      w > 16000 ||
      h > 16000 ||
      w * h > 16000000) {
    throw ArgumentError(
      'Raster viewport must be positive and fit within '
      '16 megapixels and 16000 pixels per axis',
    );
  }
  _width = width;
  _height = height;
  _image = null;
}