SubscribeIncorrect grading criteria can cause fatal errors in Civil 3D
Numerous errors in user input are known to cause fatal errors in Civil 3D. Most recently, I’ve noticed that incorrect grading criteria can cause an unhandled exception.
Steps to reproduce:* Create a grading criteria to grade to a relative elevation of +5′ at 0% grade.
* Grade from any feature line using this criterea.
* Wait several minutes.
* Watch C3D produce a fatal error
Admittedly, this is an error in user input, but Civil 3D should do standard error checking to catch user error. For comparison, enter =5/0 in a cell in excel, and it will immediately return #DIV/0! without crashing.
Workaround:
Never make mistakes.
First Appeared: This was first reported to me in Civil 3D 2008 SP2, but I suspect it has been around since the beginning.
Status as of Civil 3D 2009: (unknown)