[Feature] New soft constraints in the advanced digitizing dock (Request in QGIS)

[qgis-bot]

Request for documentation

From pull request qgis/QGIS#46647
Author: @Koyaani
QGIS version: 3.26 (Feature)

[Feature] New soft constraints in the advanced digitizing dock

PR Description:

Description

This PR adds 2 new advanced digitizing tools:

• Line Extension, the user selects a vertex of a line and then can add a point in the continuity of the lines formed with the previous and next vertex.
• x/y Vertex, the user selects one or more vertices and then he can add a point with the same x or y coordinates of one of these vertices.

I changed the name of the constraint group "Additional Constraint" to "Between Line Constraint", because the term "Additional" could be confusing.

To do:

• Manage snapping between constraints (such as crossings)
• Line continuity constraint with polygons and multi geometries
• Add tests (based on the ones I'm doing in the PR #46357)
• Be able to have several lines to extend (with line continuity constraint)
• Create icons for the 2 actions
• Add tool tip and modify action names
• Snapping to the closest constraint?

This PR edits the code of the advanced digitizing panel with behavioral changes, feedback and questions are welcome.

Sponsored by: Métropole Européenne de Lille @Jean-Roc

Commits tagged with [need-docs] or [FEATURE]