I am pretty new to vtk. I am using openvdb for a slam application and I am trying to use VTK for visualization.
So lets say I have a 3d grid with size of 100x100x100. And lets say, I want to visualize some of the voxels within this grid. So for example, in my vdb grid, I have a voxel at (i,j,k) that I want to visualize.
One way to do that is to make vtkPoints and put them into vtkPolyData. After that I can make a glyph3d of a cube to show a cube with its centerpoint (i,j,k).
The problem with that, is that in my application I need to always update my grid by adding and deleting points. so if i store my vdb voxels in an array of vtkpoints, I cant access them again with(i,j,k) to add or delete.
Is there a way in vtk to store a grid as follows:
giving an (i,j,k) index I can visualize a cube around that index.
Also I can access that index later and remove that cube
Is this possible?
I would appreciate any suggestion