Hi,
Thanks for your interest in Syncfusion product.
If you want to prevent the rotation action and remove the Rotation point
then you have to customize the View class and override the DrawHandles() method.
Please refer to the following code snippet
protected override void DrawHandles(System.Drawing.Graphics grfx, NodeCollection nodesSelected)
{
if (nodesSelected != null && nodesSelected.Count > 0)
{
foreach (Node nodeCur in nodesSelected)
{
if (nodeCur.Visible)
{
HandleEditMode resultHandleEditMode = nodeCur.EditStyle.DefaultHandleEditMode;
Matrix matrixParentsTransorm = GetParentsTransform(nodeCur);
GraphicsState stateSave = grfx.Save();
grfx.MultiplyTransform(matrixParentsTransorm);
switch (resultHandleEditMode)
{
case HandleEditMode.Resize:
if (nodeCur is IEndPointContainer)
{
HandleRenderer.DrawEndPoints(grfx, nodeCur);
HandleRenderer.OutlineBoundingRectangle(grfx, nodeCur);
}
else
{
HandleRenderer.OutlineBoundingRectangle(grfx, nodeCur);
HandleRenderer.DrawSelectionHandles(grfx, nodeCur);
}
break;
case HandleEditMode.Vertex:
PathNode pathNode = nodeCur as PathNode;
if (nodeCur is IEndPointContainer)
{
HandleRenderer.DrawEndPoints(grfx, nodeCur);
HandleRenderer.OutlineBoundingRectangle(grfx, nodeCur);
if (pathNode.CanDrawControlPoints())
{
pathNode.DrawControlPoints(grfx);
}
}
else if (pathNode != null && (pathNode.CanChangePath || pathNode.IsVertexEditable))
{
HandleRenderer.OutlineBoundingRectangle(grfx, pathNode);
// Draw control points if can.
if (pathNode.CanDrawControlPoints())
{
pathNode.DrawControlPoints(grfx);
}
else
{
HandleRenderer.DrawVertexHandles(grfx, pathNode);
}
}
break;
}
grfx.Restore(stateSave);
}
}
}
I have attached the sample for your reference. You can download the sample from the following page.
http://websamples.syncfusion.com/samples/Diagram.Windows/F69568/main.htmPlease let me know if you have any questions.
Thanks,
Prakash