PlanesIntersection

#!/usr/bin/env python

# noinspection PyUnresolvedReferences
import vtkmodules.vtkInteractionStyle
# noinspection PyUnresolvedReferences
import vtkmodules.vtkRenderingOpenGL2
from vtkmodules.vtkCommonCore import vtkPoints
from vtkmodules.vtkCommonDataModel import vtkPlanesIntersection
from vtkmodules.vtkFiltersSources import vtkSphereSource

def main():

    sphereSource = vtkSphereSource()
    sphereSource.Update()

    bounds = [0 for i in range(6)]
    sphereSource.GetOutput().GetBounds(bounds)

    box = vtkPoints()

    box.SetNumberOfPoints(8)

    xMin = bounds[0]
    xMax = bounds[1]
    yMin = bounds[2]
    yMax = bounds[3]
    zMin = bounds[4]
    zMax = bounds[5]

    box.SetPoint(0, xMax, yMin, zMax)
    box.SetPoint(1, xMax, yMin, zMin)
    box.SetPoint(2, xMax, yMax, zMin)
    box.SetPoint(3, xMax, yMax, zMax)
    box.SetPoint(4, xMin, yMin, zMax)
    box.SetPoint(5, xMin, yMin, zMin)
    box.SetPoint(6, xMin, yMax, zMin)
    box.SetPoint(7, xMin, yMax, zMax)

    planesIntersection = vtkPlanesIntersection()
    planesIntersection.SetBounds(bounds)

    intersects = planesIntersection.IntersectsRegion(box)
    if intersects == 1:
        res = 'Yes'
    else:
        res = 'No'
    print('Intersects? ', res)

if __name__ == '__main__':
    main()