Hi,
From the information provided, I understand that you are getting an error while executing pointLocation(tri, x0, y0) with 'tri' as the triangulation object and 'x0' and 'y0' as coordinates obtained from ginput.
The error occurs because the 'pointLocation' function expects the query points to have the same number of dimensions as the triangulation object. Here, the query points, i.e., (x0, y0), are 2-D and 'tri' is 3-D.
>> tri
tri =
triangulation with properties:
Points: [542×3 double]
ConnectivityList: [984×3 double]
In this case, you can delete the third column of data.r to get the 2-D triangulation object, considering z-coordinate for every point is 0:
data.r(:,3) = [];
>> tri
tri =
triangulation with properties:
Points: [542×2 double]
ConnectivityList: [984×3 double]
You can refer to the following documentation to know more about ginput, triangulation and pointLocation:
- https://www.mathworks.com/help/releases/R2023a/matlab/ref/ginput.html
- https://www.mathworks.com/help/releases/R2023a/matlab/ref/triangulation.html
- https://www.mathworks.com/help/releases/R2023a/matlab/ref/triangulation.pointlocation.html
I hope it helps in resolving the error.
Thanks,
Shivam
