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Normal Topic Diagram canvas area is not updated. When set margin. (Read 11878 times)
Yogendra
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Diagram canvas area is not updated. When set margin.
Jan 25th, 2013 at 6:42am
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I working with mindfussion.diagramming diagram. i can increase /decrease width and height by using numeric button. code is here

BGBounds = New Rect(spnTemplateLeft.Value, spnTemplateTop.Value,spnTemplateWidth.Value, spnTemplateHeight.Value)
diagram.Bounds = BGBounds
  BGNode.Bounds = BGBounds


It's working fine.

But when increase/decrease left and top numeric button then canvas area(bounds) of diagram is not updated.
I am using this code:
BGBounds = New Rect(spnTemplateLeft.Value, spnTemplateTop.Value,spnTemplateWidth.Value, spnTemplateHeight.Value)
        BGNode.SetBounds(BGBounds, True)
        diagram.Bounds = BGBounds

If set color to diagram background so colored canvas area also not working.

Please help me.

Thanks in advance  Sad
  
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Stoyo
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Re: Diagram canvas area is not updated. When set margin.
Reply #1 - Jan 25th, 2013 at 8:04am
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Have you attached all nodes in your diagram to BGNode? In such case calling SetBounds(..., true) will move them together with that node, so you won't notice any difference when changing the diagram and BGNode's origin. Call SetBounds(..., false) to leave child nodes in place and you should see the background move.

I hope that helps,
Stoyan
  
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Stoyo
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Re: Diagram canvas area is not updated. When set margin.
Reply #2 - Jan 25th, 2013 at 8:57am
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Or if you meant to extend the diagram to the left or top rather than just moving the origin of its coordinate system, you must add the offset subtracted from left/top to the rectangle's width/height.

I hope that helps,
Stoyan
  
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Yogendra
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Re: Diagram canvas area is not updated. When set margin.
Reply #3 - Jan 30th, 2013 at 11:22am
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Hi Stoyo,

I tried with that but I am not getting it properly. Can you please help me on this and if possible a small demo project will be helpful. Waiting for your reply.

Here is the code that I implemented on Left/Top numeric up/down value changed event:

Code
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TemplateWidth = spnTemplateWidth.Value
BGBounds = New Rect(spnTemplateLeft.Value, spnTemplateTop.Value, TemplateWidth, TemplateHeight)

diagram.Bounds = BGBounds
BGNode.SetBounds(diagram.Bounds, True) 




Thanks in advance for your valuable time.
Regards,
Yogendra
  
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Stoyo
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Re: Diagram canvas area is not updated. When set margin.
Reply #4 - Jan 30th, 2013 at 2:30pm
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It should look like this if you need to extend to the left/top while right and bottom boundaries remain unchanged:

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dim dx, dy as float
dx = diagram.Bounds.Left - spnTemplateLeft.Value
dy = diagram.Bounds.Top - spnTemplateTop.Value
BGBounds = New Rect(spnTemplateLeft.Value, spnTemplateTop.Value, _
    diagram.Bounds.Width + dx, diagram.Bounds.Height + dy) 



I hope that helps,
Stoyan
  
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Yogendra
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Re: Diagram canvas area is not updated. When set margin.
Reply #5 - Feb 6th, 2013 at 1:59pm
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Thanks stoyan
But if there are nodes on diagram so if i increase/decrease left/top then nodes should be moved,
or diagram has some background in color then colored canvas area should be moved.
  
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Stoyo
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Re: Diagram canvas area is not updated. When set margin.
Reply #6 - Feb 6th, 2013 at 2:45pm
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And what would you expect to happen? Either move the nodes then, or maybe you should place your diagram inside a Silverlight Border element instead of drawing a border inside the diagram.
  
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Yogendra
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Re: Diagram canvas area is not updated. When set margin.
Reply #7 - Feb 7th, 2013 at 1:25pm
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Thanks
  
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