Good day,
I want to get the zoom back to the original zoom and position after the radDiagram being zoomed.
Sometimes it is difficult to keep the zoom in good position. Thus I would like to put it again in the default zoom and point when pushing a button.
The RadDiagram making code, creating the RadDiagram:
Telerik.Windows.Diagrams.Core.DiagramConstants.MinimumZoom = 0.1 Telerik.Windows.Diagrams.Core.DiagramConstants.MaximumZoom = 10 MyRadDiagram.Zoom = 0.1 MyRadDiagram.IsSettingsPaneEnabled = False MyRadDiagram.DiagramElement.IsBackgroundSurfaceVisible = False MyRadDiagram.BackgroundGrid.Visibility = False MyRadDiagram.BackgroundPageGrid.Visibility = Telerik.WinControls.ElementVisibility.Hidden MyRadDiagram.BackgroundImageLayout = ImageLayout.None MyRadDiagram.BackgroundImage = Nothing posCentral = MyRadDiagram.PositionThe code I use to get back to original zoom:
Private posCenter As New Telerik.Windows.Diagrams.Core.Point(0, 0)Private Sub bCenterZoom_Click(sender As Object, e As EventArgs) Handles bCenterZoom.Click loading = True MyRadDiagram.Position = posCentral MyRadDiagram.Zoom = 0.1 loading = FalseEnd Sub
3 Answers, 1 is accepted
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Well it just posted without me ending it, I see that when I click in the button it doesn't really get me to original point and it does consume a lot of memory if I try to do it around 5-6 times.
I do not know if there is something wrong with the control or in my approach.
Thanks in advance.
Regards, Xabier / Zitu
In order to save the current state of a RadDiagram and keep the zoom factor and position offset, you can use the following code snippet. Thus, you can save the current position and restore it at a later moment. The attached gif file illustrates the obtained behavior:
Dim zoom As doubleDim offset As SizeFPrivate Sub RadButton1_Click( sender As Object, e As EventArgs) Handles RadButton1.Click zoom= Me.RadDiagram1.Zoom offset = Me.RadDiagram1.DiagramElement.MainPanel.PositionOffset End SubPrivate Sub RadButton2_Click( sender As Object, e As EventArgs) Handles RadButton2.Click Me.RadDiagram1.Zoom=zoom Me.RadDiagram1.DiagramElement.MainPanel.PositionOffset = offsetEnd SubAs to the memory consumption, I haven't noticed any unreleased memory. I have attached my sample project. Could you please give it a try and see how it works on your end. Feel free to modify it in a way to reproduce the experienced issue and get back to me with it so I can investigate the precise case. Thank you in advance.
I am looking forward to your reply.
Regards,
Dess | Tech Support Engineer, Sr.
Progress Telerik
Rank 1
Thanks a lot for the answer.
It is what we were looking for. Didn't see the mainPanel PositionOffset.
Regards,
Xabier/Zitu