nataliek Posted June 16, 2020 Report Share Posted June 16, 2020 Hello, Can anyone provide some advice on taking measurements of models once they are scaled, especially of curved surfaces? I realize it is relatively easily to measure planar surfaces in Agisoft, but how would I measure a curved surface? I am hoping to create models of sculptures of various sizes and materials. Is there another software besides Agisoft that may help with this? Thank you, Natalie Quote Link to comment Share on other sites More sharing options...
Tom Posted July 9, 2020 Report Share Posted July 9, 2020 You could try CloudCompare, as this has an 'unwrap cylinder' function. You could then scale and measure a flattened version. Hope this helps. Tom Quote Link to comment Share on other sites More sharing options...
leszekp Posted July 19, 2020 Report Share Posted July 19, 2020 Take a look at Gigamesh. https://gigamesh.eu/?page=home Quote Link to comment Share on other sites More sharing options...
HMara Posted August 3, 2020 Report Share Posted August 3, 2020 On 7/19/2020 at 8:26 AM, leszekp said: Take a look at Gigamesh. https://gigamesh.eu/?page=home Yes: MSII (Multi-Scale Integral Invariants) provides four different curvature measures i.e. how bent the surface is. This shown in our latest video for the more prominent curvatre: https://youtu.be/W9U6hT96l5E .... this one is related to Gaussian curvature. The other three measures you can compute on the commandline with "gigamesh-featurevectors" and "gigamesh-featurevectors-sl", which has only the radius as a parameter. Furthermore you can compute distances to spheres, cones and cylinders, which are used in GigaMesh to compute unwrappings/rollouts. Quote Link to comment Share on other sites More sharing options...
cdschroer Posted August 28, 2020 Report Share Posted August 28, 2020 Sorry, I'm a bit late to the party here - just catching up on posts, and I missed this before. In addition to the above suggestions, If you can see the whole surface you want to measure in one orthographic view - then you can make an orthomosaic and measure that. That is measuring along the surface, rather than point to point in a straight line. It doesn't work for everything, but for some situations it's a simple easy solution. Carla Quote Link to comment Share on other sites More sharing options...
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