v2021.0.6

Main changes

• various fixes

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base.py

• introduced new sintax to set/retrieve a mesh point data array: myobj.pointdata["arrayname"]
  same for cell/face data: myobj.celldata["arrayname"]

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addons.py

• added kword LegendBox(markers=...)
• added kword Slider2D(delayed=True) to act upon mouse release

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colors.py

• fixed small bug in colorMap (only affecting systems without matplotlib)

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mesh.py

• fixed problem in geodesic().
• added tolerance keyword in intersectWithLine(). Also, now returnIds returns [[pt,cellid]]
• added kword flag to function merge(..., flag=True) to optionally keep track of the original meshes ids

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picture.py

• added .enhance() method.
• method .tonumpy() reshape to [nx,ny,nchannels] to match matplotlib standard
• added .append() to stitch images the current to the left or to the top.
• added .extent() to specify physical extention of an image.

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pointcloud.py

• cluster() renamed to pointcloud.addClustering()
• added voronoi() function

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New/Revised examples:

vedo -r optics_main1
vedo -r optics_main2
vedo -r optics_main3
vedo -r warp4
vedo -r voronoi
vedo -r drag_chain
vedo -r morphomatics_tube

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