Commands receive click coordinates in local space (DXF coords minus
world_offset) for camera precision. Without correction, entities were
placed world_offset away from the clicked position in existing drawings
that have a non-zero centroid (e.g. UTM-coordinate drawings).
Re-add world_offset via acadrust::Transform::from_translation (f64
precision) in commit_entity before the entity is inserted into the
DXF document. Paper-space entities are exempt as they use sheet coords.
Fixes#11
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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