parsePerspectiveFilter method
Implementation
ViewerElement<List<Point<num>>>? parsePerspectiveFilter(node) {
return _parseViewerElement(
node, ['perspectiveFilter', 'perspectivefilter', 'perspective'],
constructorValue: (value) =>
CanvasImageViewer.perspectiveViewerElement(value),
mapperList: (list) => numsToPoints(parseNumsFromList(list)));
}