Select the wall panel and run the local meshing. Check if you have any surface elements generated inside the opening.
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no elements(nodes) appear in the opening after meshing. But i still have this strange view.
To solve this problem I make new polyline(not rectangular, but together with opening), delete 'paradoxical' wall, and define new one according to new polyline. So many functions in robot, but only some of them work properly.
The shading is just the enhancement in the display of the model and it depends on the performance of the implemented grapical library rather than the analytical part of the program. If that happens you may try to delete and create the opening again.
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When I try to define the opening with this function, I always have problems. When the edge of the opening lies on the edge of the shell I ALWAYS have this problem. I can define this opening with this function thousand times, and i will have the same problem. So, this function for me and my collegues is absolutely unuseful. Hope other users use this function successfully.
Thank you for providing this information. We will investigate this situation.
Should be OK for Robot 2015.
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