Note
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Picking points on a mesh#
This example demonstrates how to pick points on meshes using
enable_point_picking()
.
from __future__ import annotations
import pyvista as pv
Pick points on a sphere#
sphere = pv.Sphere()
p = pv.Plotter()
p.add_mesh(sphere, pickable=True)
p.enable_point_picking()
p.show()
![point picking](../../_images/sphx_glr_point-picking_001.png)
Ignore the 3D window#
In the above example, both points on the mesh and points in the 3d window can be selected. It is possible instead pick only points on the mesh.
sphere = pv.Sphere()
p = pv.Plotter()
p.add_mesh(sphere, pickable=True)
p.enable_point_picking(pickable_window=False) # Make the 3D window unpickable
p.show()
![point picking](../../_images/sphx_glr_point-picking_002.png)
Modify which actors are pickable#
After enabling point picking, we can modify which actors are pickable.
sphere = pv.Sphere()
cube = pv.Cube().translate([10, 10, 0])
p = pv.Plotter()
sphere_actor = p.add_mesh(sphere, pickable=True) # initially pickable
cube_actor = p.add_mesh(cube, pickable=False) # initially unpickable
p.enable_point_picking(pickable_window=False)
p.pickable_actors = [sphere_actor, cube_actor] # now both are pickable
p.view_xy()
p.show()
![point picking](../../_images/sphx_glr_point-picking_003.png)