How to calculate surface area of a selected region from a 3d plot
11 次查看(过去 30 天)
显示 更早的评论
Hi Friends,
I have created a 3d plot in Matlab using x,y,z coordinates imported from another software. From this 3d surface i wanted to calculate the surface area of a certain selected region. I have even defined the region of interest on the 3d plot but, is stuck at finding the area. It would be very helpful if someone can guide me on how to find the surface area of this region of interest.
0 个评论
回答(1 个)
Image Analyst
2020-8-1
regionprops3() can give you the surface area of a 3-D volumetric image.
2 个评论
Image Analyst
2020-8-1
You'd have to put all those x,y,z points into a 3-D array and then use regionprops3(). Not sure if the area would include the inside area plus the outside area, or just the outside area. Otherwise you can try polyarea() on each of your little triangles.
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Surface and Mesh Plots 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!