zoomAt method
Implementation
void zoomAt(DiagramPoint screenFocalPoint, double scaleFactor) => panZoom(
fromFocalPoint: screenFocalPoint,
toFocalPoint: screenFocalPoint,
scaleFactor: scaleFactor,
);
void zoomAt(DiagramPoint screenFocalPoint, double scaleFactor) => panZoom(
fromFocalPoint: screenFocalPoint,
toFocalPoint: screenFocalPoint,
scaleFactor: scaleFactor,
);