LiangliangNan
commented
7 years ago Dear Chang,
The PLY format point cloud files store only vertex and vertex attribute information. It doesn't record the planar segments. That means the planes were lost during your conversion (VG -> PLY-> VG). You can use Mapple's "Extract Primitives" (under Partition menu) to produce the planar segments. There are also other methods for plane extraction (many papers on this topic). Please do remember to save the extracted primitives as VG format. When all necessary planes are extracted (even if all planes are partial, i.e., some regions of the planes are missing), FolyFit should work.
Good luck!
Liangliang
On Fri, Sep 29, 2017 at 12:23 AM, kcyoung78 notifications@github.com wrote:
Hi Liangliang,
Thank you so much for sharing your wonderful project.
I was trying to test my own point cloud which is ply format. As you recommended, I used mapple to convert my ply format data to vg format. When I ran polyfit, especially during pushing 'Refine' button, I encountered "planar segments do not exist" message. As a test, I convert Fig1.vg from your dataset to ply format and convert it back to vg format. It has same error. I am wondering what is procedure to convert a custom point cloud data into vg format that includes planar segments information. Thanks! -Chang Young
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kcyoung78
Karltlbm
karan00713
Hi Liangliang,
Thank you so much for sharing your wonderful project.
I was trying to test my own point cloud which is ply format. As you recommended, I used mapple to convert my ply format data to vg format. When I ran polyfit, especially during pushing 'Refine' button, I encountered "planar segments do not exist" message. As a test, I convert Fig1.vg from your dataset to ply format and convert it back to vg format. It has same error. I am wondering what is procedure to convert a custom point cloud data into vg format that includes planar segments information. Thanks! -Chang Young