private void OnGraphControlMouseWheel(object sender, MouseWheelEventArgs e)
{
ZoomAndPanControl.ZoomAboutPoint(
ZoomAndPanControl.ContentScale + e.Delta / 1000.0f,
e.GetPosition(GraphControl));
e.Handled = true;
}
/// <summary>
/// Zoom the viewport in, centering on the specified point (in content coordinates).
/// </summary>
private void ZoomIn(Point contentZoomCenter)
{
ZoomAndPanControl.ZoomAboutPoint(ZoomAndPanControl.ContentScale + 0.1, contentZoomCenter);
}
/// <summary> /// Zoom the viewport out, centering on the specified point (in content coordinates). /// </summary> private void ZoomOut(Point contentZoomCenter) => ZoomAndPanControl.ZoomAboutPoint(ZoomAndPanControl.ContentScale - 0.1, contentZoomCenter);
// Zoom the viewport in by a small increment
public static void ZoomIn(ZoomAndPanControl z, Point contentZoomCenter)
{
z.ZoomAboutPoint(z.ContentScale + 0.1, contentZoomCenter);
}
private void CvZoomOut(Point point)
{
ZoomAndPanControl.ZoomAboutPoint(ZoomAndPanControl.ContentScale - 0.1, point);
}