<div style="line-height:1.7;color:#000000;font-size:14px;font-family:Arial">Hi, all!
<br>I wish there is someone can solve my problem.
<br><br>Is there any class or way in vtk to get intersect points and 
cell Id for line intersect with 2D cells? I have post a draft to explane
 what I want to say. the red line and quadric cells are in the same 
plane(such as z=0), now I want to get the intersect points and cell ids 
whick are intersected with red line and cells.
<br><br>I have tried function in intersectWithLine in vtkOBBTree, but it
 works for 3D cells intersect with line. Is there any way to solve this 
prolem for 2D cells?
<br><br><div>thanks for your view and help!<br><br><img src="data:image/png;base64,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" alt=""><br></div></div><br><br><span title="neteasefooter"><p> </p></span>