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Normal Topic Arrow is going through a box (Read 6283 times)
krebsd
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Arrow is going through a box
Dec 9th, 2005 at 8:58am
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I built my own chart without using any layout.
I set the arrowstyle to "EArrowStyle.asBezier" to have only horizontal an vertical lines.
But the arrow doesn't care if there are some boxes in its way.
Which property can I set, that arrows are going around boxes?
  
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Stoyo
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Re: Arrow is going through a box
Reply #1 - Dec 9th, 2005 at 10:41am
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Try setting the AutoRoute property of arrows to true, or set the flowchart's RouteArrows property, which is used to initialize the AutoRoute value of new arrows.
  
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krebsd
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Re: Arrow is going through a box
Reply #2 - Dec 9th, 2005 at 10:51am
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Stoyo,

I tried that:

a = fc.CreateArrow(b, myb)
a.AutoRoute = True
a.Style = EArrowStyle.asBezier
a.ArrowHeadSize = 10

But it didn't change anything.

I also tried: fc.RouteAllArrows()

regards, Daniel.
  
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Stoyo
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Re: Arrow is going through a box
Reply #3 - Dec 9th, 2005 at 11:04am
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Hi Daniel,

If you use some large box as a background, make sure that box is not marked as obstacle, i.e. set box.Obstacle = false. Otherwise the path-finding will fail and the arrows will just go straight to their destination.

Stoyan
  
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Daniel
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Re: Arrow is going through a box
Reply #4 - Dec 9th, 2005 at 3:01pm
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Hi Stoyan,

I tried that, but box.obstacle doesn't change anything.

These are the properties of my flowcharobject:

Code
Select All
fc = New FlowChart

	  fc.MeasureUnit = GraphicsUnit.Pixel
	  fc.DocExtents = New RectangleF(0, 0, 1200, 800)
	  fc.BackColor = Color.White
	  fc.SelectAfterCreate = False
	  fc.SelHandleSize = 6
	  fc.BoxStyle = EBoxStyle.bsRect

	  fc.ArrowHead = EArrowHead.ahBowArrow
	  fc.ArrowHeadSize = 15

	  fc.ArrowsSplittable = True
	  fc.RouteArrows = True
	  'fc.RouteAllArrows()


These are the properties of my boxes:

Code
Select All
Dim myb As Box = fc.CreateBox(maxx, 70 + i, 90, 40)
						myb.HyperLink = "http://clserv/demopromolpm/Prozess_MV.aspx?ProID=" + CStr(toproid) + "&LangID=1&preview=1"
						myb.Text = proname
						'myb.Tag = toproid
						myb.FillColor = Drawing.Color.YellowGreen
						myb.Obstacle = False


These are the properties of my arrows:

Code
Select All
a = fc.CreateArrow(b, tb)
				    'a.AutoRoute = True
				    Select Case Request.QueryString("arrowstyle")
					  Case "1"
						a.Style = EArrowStyle.asBezier
					  Case "2"
						a.Style = EArrowStyle.asPerpendicular
					  Case "3"
						a.Style = EArrowStyle.asPolyline
					  Case Else
						a.Style = EArrowStyle.asBezier
				    End Select
				    a.SnapToNodeBorder = True
				    a.ArrowHeadSize = 10


I'll send you the generated bitmaps by mail.

regards, Daniel.
  
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Stoyo
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Re: Arrow is going through a box
Reply #5 - Dec 9th, 2005 at 3:04pm
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Hi Daniel,

Better send me a diagram file created using the SaveToFile method.

Thanks,
Stoyan
  
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Stoyo
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Re: Arrow is going through a box
Reply #6 - Dec 9th, 2005 at 3:18pm
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And all boxes that should be avoided must have box.Obstacle = true, only boxes used as background decorations should have set Obstacle=false.

Stoyan
  
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krebsd
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Re: Arrow is going through a box
Reply #7 - Dec 9th, 2005 at 3:47pm
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Hi Stoyan,

ok now I set box.obstacle = true for all my boxes. That works. Thanks.

But the arrows are going together. So it's not possible to see the relation.

I'll send you the diagram-file.

regards, Daniel.
  
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