Hi, I have 97 points and 4656 lines contains 3d coordinates and have to do 3D network analysis with them. But now I am facing some problems. First, I used ArcMap to do network analysis, but no matter where I add a stop, those stops are all "unlocked". Therefore, I cannot continue my work anymore. I doubted that's because they contains Z-cor, so I tried ArcScene to solve, however, as I used the finding route model in tutor, after adding stops I still got error message said "points are unlocked". Could anyone told me what happened and how to solve my problems? Though I've read tutor I still can't figure out why, so thanks for giving any advice. The file I have performing in ArcSecne is like below: It's really a big file and contains lots of lines, so I am even not sure whether it can run network analysis in ArcGIS... Thanks for any help again.
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