Equal distances between points

[gzaidner]

Hi,
I'm trying generate a points on a half sphere. The thing is that the raster slices the surface with equal spacing on XY (From top view) resulting different spacing on Z axis.
Previous version had "surface walk" but no more...
Any thoughts of how can I do it?

[marip8]

You are correct, the plane slicer raster planner does just step a fixed distance normal to a cutting plane, so the resulting paths are not guaranteed to be equidistant on a surface. You should use the surface walk planner instead which does try to make paths equidistant from each other. It still exists in the tool_path_planner package (which is ROS1 dependent) and has not yet been ported to the new noether_tpp (which is independent of ROS). I started this clean-up and port of this class a little while back but haven't had time to compete it