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Reverse A Multisegmented Arrow and Maintain Shape? (Read 1636 times)

mattapayne YaBB Newbies Offline I love YaBB 1G - SP1! Posts: 15 Joined: Mar 6^th, 2007	Reverse A Multisegmented Arrow and Maintain Shape? Mar 10^th, 2007 at 4:24pm	Print Post
	Hi, I need to reverse a multisegmented arrow while maintaining the shape specified by the user. The code currently does this: ArrowStyle oStyle = _contextArrow.Style; _contextArrow.RetainForm = true; MindFusion.FlowChartX.Node oNode = _contextArrow.Origin; _contextArrow.Origin = _contextArrow.Destination; _contextArrow.Destination = oNode; _contextArrow.Style = oStyle; The ArrowStyle is PolyLine - if that makes a difference. While this does reverse the endpoints properly, the additional segments are lost and the arrow reverts back to a straight line. It seems to me that perhaps I need to get a reference the the arrow's control points and then reassign them after the reversal. Does that make sense or is there a better way? Thanks, Matt


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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: Reverse A Multisegmented Arrow and Maintain Sh Reply #1 - Mar 11^th, 2007 at 8:35am	Print Post
	Hi, You can do that by cloning the arrow control points before changing the Origin and Destination, and restoring them in reversed order after that. The arrow style changes automatically when the arrow's origin and destination nodes get the same, which happens at one point of the code where the nodes are swapped, so the style must be restored too: Code private void reverseArrow(Arrow arrow) { short segments = arrow.SegmentCount; ArrowStyle style = arrow.Style; PointCollection points = arrow.ControlPoints.Clone(); Node node = arrow.Origin; arrow.Origin = arrow.Destination; arrow.Destination = node; arrow.SegmentCount = segments; arrow.Style = style; for (int i = 0; i < points.Count; ++i) arrow.ControlPoints[points.Count - i - 1] = points[i]; arrow.UpdateFromPoints(); } If your flowcharts will contain tables, you will need to add some code that swaps the related row indices as well. I hope that helps, Stoyan


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mattapayne YaBB Newbies Offline I love YaBB 1G - SP1! Posts: 15 Joined: Mar 6^th, 2007	Re: Reverse A Multisegmented Arrow and Maintain Sh Reply #2 - Mar 12^th, 2007 at 2:05pm	Print Post
	Thanks, Stoyo. Figured it was something like that. Regards, Matt


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