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Author Topic: Mask Mesh build  (Read 1881 times)

MurrayW

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Mask Mesh build
« on: December 13, 2018, 05:37:58 AM »
Hello,

I am using Photoscan for an aerial photo project. The triangulation results are good, I've created a dense point cloud.

I want to build a mesh and PS reports that it will take 3 days.  But, I only really need a small area.  How do I limit the mesh build to be only a selected area?

I have manually selected points from the dense point cloud using the Model/free-form selection tool, reversed the selection, and deleted those points.  That works, I do get a mesh limited to the area of interest. 

However, I cannot automate that process. 

Can Photoscan:

     - import a shapefile to select points from dense point cloud?
or
     - use a shapefile to constrain the area for mesh build?

or does someone have a better method?

cheers
Murray

mattiv

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Re: Mask Mesh build
« Reply #1 on: December 13, 2018, 04:37:24 PM »
Try to resize the bounding box to the area you want

MurrayW

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Re: Mask Mesh build
« Reply #2 on: December 14, 2018, 03:14:03 AM »
Can resizing the bounding box be automated?

JMR

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Re: Mask Mesh build
« Reply #3 on: December 14, 2018, 12:23:41 PM »
Hello:
You can do as follows:
draw/import pollygon shape
duplicate dense cloud if you want to keep the original
use tools/dense cloud/select by shapes
crop selection
.... mesh the partial dense cloud