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set_blocks_visibility()

Sets visibility for multiple blocks in batch.

Updates the visibility state for multiple blocks at once, then renders the scene. More efficient than calling set_block_visibility() repeatedly. Works in both desktop and notebook modes.

Parameters
  • visibility (dict[str, bool]) — Dictionary mapping block names to visibility states. True to show the block, False to hide it.

Example​

from pyemsi import Plotter

p = Plotter("mesh.vtm")
p.set_scalar("B-Mag (T)")
p.show()

# Hide multiple blocks at once
p.set_blocks_visibility({
    "air": False,
    "boundary": False,
})

# Restore visibility
p.set_blocks_visibility({
    "air": True,
    "boundary": True,
})

Notebook Mode​

This method works in notebook mode as well, making it useful for interactive visibility control in Jupyter:

from pyemsi import Plotter

p = Plotter("mesh.vtm", notebook=True)
p.set_scalar("B-Mag (T)")
p.show()

# Toggle visibility in notebook
p.set_blocks_visibility({"air": False})

See Also​