2022.4.2

Main changes

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base.py

• added basegrid.extract_cells_on_plane()
• added basegrid.extract_cells_on_sphere()
• added basegrid.extract_cells_on_cylinder()
• added count_vertices() method
• added copy_data_from() method to transfer all cell and point data from an object to another.
• fixed metadata association

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pointcloud.py

• added cut_with_planes() to cut at once with multiple planes
• added generate_random_data() for testing purposes
• renamed vignette() to flagpole()
• added new flagpost() similar to the above
• added new property pointcloud.cellcolorsand pointcolors
  to access and modify colors by RGBA assignment.
• added compute_camera_distance() to calculate the distance from points to the camera.
  A pointdata array is created with name 'DistanceToCamera'.
• added cut_with_scalars() to cut polygonal data with some input scalar data.

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mesh.py

• improved binarize() method thanks to @vfmatzkin
• added collide_with() to fix crashing of intersect_with() in special cases
• added check_validity()
• added method=4 for subdivide()
• added intersect_with_plane()
• added boolean(..., method=1)
• added intersect_with_multiplanes() to generate a set of lines from cutting a mesh in n intervals
  between a minimum and maximum distance from a plane of given origin and normal.

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plotter.py

• fixed key bindings for uppercase hits.
• added method add_hint() to generate a pop-up message on hovering an object
• fix output of template camera when pressing "C"
• improved move_camera()
• added key-press R to reset camera viewup to closest orthogonal viewup
  added corresponding method plotter.reset_viewup()
• added press . to fly to last clicked point and zoom in

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picture.py

• generate false colors for an image with Picture().cmap()

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pyplot.py

• clicking on a histogram shows the bin value
• add as2d() method to freeze a plot in 2d canvas, without mouse interaction (experimental)

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shapes.py

• Added support for chinese and japanese chars
• Added font "ComicMono"
• added possibility to create a disc sector in Disc(angle_range=...)

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tetmesh.py

• added compute_tets_volume()
• added check_validity()

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volume.py

• added vtkFlyingEdges3D instead of contouring, which is faster.

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Examples

New/Revised

examples/basic/color_mesh_cells1.py
examples/basic/color_mesh_cells2.py
examples/pyplot/fit_curve.py
examples/pyplot/histo_2d_a.py
examples/pyplot/histo_2d_b.py
examples/other/flag_labels2.py
examples/volumetric/image_false_colors.py