Label points #94

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opened 2025-06-20 20:58:59 +00:00 by Vectornaut · 0 comments

Vectornaut commented

2025-06-20 20:58:59 +00:00

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The display view should be able to show points' labels. Here are some design criteria carried over from issue #27.

Label always has the same apparent occlusion as the point.
- In particular, when a point lies on a positive-codimension entity, its label is never occluded by its neighborhood in that entity. This is a corollary of (4) and (2).
Label stays in the same screen orientation and position, relative to the point, under most or all rotations.
- Labels are always "upright" for reading in the display, unless explicitly customized on a per-point basis or generically. (Such angled label text can be a later enhancement.)
- Maybe it would be okay for the label's screen orientation to roll when the camera rolls (respecting previous bullet).
- Ultimately the apparent relationship of label to point should be customizable (e.g. by dragging the label, but perhaps in other ways, such as a selection of placement algorithms) on a per-point basis, falling back to a (potentially customizable) general default.

The display view should be able to show points' labels. Here are some design criteria carried over from issue #27. 1. Label always has the same apparent occlusion as the point. - In particular, when a point lies on a positive-codimension entity, its label is never occluded by its neighborhood in that entity. This is a corollary of (4) and (2). 2. Label stays in the same screen orientation and position, relative to the point, under most or all rotations. - Labels are always "upright" for reading in the display, unless explicitly customized on a per-point basis or generically. (Such angled label text can be a later enhancement.) - Maybe it would be okay for the label's screen orientation to roll when the camera rolls (respecting previous bullet). - Ultimately the apparent relationship of label to point should be customizable (e.g. by dragging the label, but perhaps in other ways, such as a selection of placement algorithms) on a per-point basis, falling back to a (potentially customizable) general default.