Implement EntityJig/DrawJig loops for real-time AutoCAD entity placement previews.
npx skills add https://github.com/hebackus/c3d-api-plugin --skill acad-jigs
Please help me install this Agent Skill. Skill: acad-jigs Source: https://github.com/hebackus/c3d-api-plugin/tree/main/skills/acad-jigs Command: npx skills add https://github.com/hebackus/c3d-api-plugin --skill acad-jigs
AutoCAD plugin development often requires building interactive drawing tools that provide real-time feedback during user input, which is complex and error-prone without a proper jig framework.
Drag the jig to start live-preview placement of an entity in AutoCAD.
High-intent search queries and answers about installing and using this skill.
To add live preview to AutoCAD entity placement, use an EntityJig or DrawJig pattern with Sampler and Update loops. This provides real-time visual feedback during point selection before committing the entity to the drawing database.
EntityJig provides live preview for a single entity being placed, while DrawJig enables multi-entity drawing previews. Both use Sampler and Update loops to manage interactive input like points, distances, and angles during the placement workflow.
AutoCAD jig flicker during point selection often occurs when updates run unnecessarily. Implementing NoChange checks within the Sampler and Update loops prevents redraws when input hasn't changed, ensuring smooth real-time visual feedback.
To finalize AutoCAD entities safely after a jig input loop, use safe rendering without database transactions during the preview phase. Commit the finalized entity to the drawing database only after the Sampler confirms the user has completed point selection.
Yes, you can use a DrawJig to place AutoCAD blocks with multi-step input. The Sampler and Update loops manage multiple inputs like distances and angles, providing live preview of the block before finalizing it in the drawing.
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