is there a way to get a group of 3d polylines to elevation zero all at the same time. a 300 foot long 3dpoly i have might have a couple hundred grips on it. i converted them to features and was going to do it that way, but thought i'd throw out a post and see if anyone had any sugg.
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Express tools: FLATTEN
sorry chief, answer no to remove hidden lines
Another method is to use Civil 3D's Grading > Polyline Utilities > ConverT 3D to 2D Polylines.
The command is CONVERT3DPOLYS.
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