I have some faces and i want project them to xy plane (Top view).
I want to get exterior boundary line of this model. To do this, i will ignore all dashed lines, but i cannot check a line is dashed line or not.
Please help me!
It is not clear to me what is it that you call dashed lines? Are those lines the ones that are supposed to be hidden as a result of the projection or are they actually dashed because of their linetype for example?
In order to project entities and remove hidden lines, you need to rely on the Hidden Line Removal API: check the ObjectARX %VERSION%\utils\HlrApi sample for more details.
Hope it helps.
i want check a line is hidden line in set of lines (after project them to a plane)
you can see attachment image to detail.
You need to use HLR API then.
Nope, this API is only available in C++ with the sample I mentionned previously. If you want to invoke it from .Net, you would need to write your own mixed-managed wrapper for it.
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