* Point clouds: colour and filter by any property of a PLY file, on range tracks (#5151)
A PLY file's other vertex properties are kept as named numbers on the
points (whole-numbered for integer types; a comment `property: 0 name,
1 name` names a label's values). A cloud is coloured by any of them, a
ramp or a palette for whole numbers, and filtered by up to eight, each a
range or a set of named values. The GPU colours and filters the points
itself, so editing a range uploads nothing.
In the Edit Point Cloud card each range is a track, as in an audio
editor: a histogram of the property over what the other filters keep,
stacked by colour, under an overview strip. Ranges are drawn, moved,
snapped to colour changes, typed (Start, End, Length, relative values)
and played (Space or Play). The automatic colour range is exactly the
values the property takes over what the filters keep.
pointcloud.insert and pointcloud.edit take color_by: <property>,
color_range and filters; pointcloud.list reports them with the
properties. docs/point-clouds.md describes it all.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Point clouds: note the saved properties, colouring and filters as a pending format change (#8816)
A design now saves a cloud's per-point columns and their value names, colouring by a property and
filters; an older release must refuse it instead of dropping them.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Mario Geiger
332f96c26a