Sketcher ConstrainBlock/bg

Symmetric Constraint

Group Constraint

Sketcher

Описание

Инструментът Sketcher ContrainBlock едно ограничение, което блокира ръбовете на място. Предназначено е главно за B-splines, които по друг начин може да бъде трудно да се ограничат напълно.

The block constraint only affects the freely movable parts of an edge. Blocked edges can have other constraints, and applying additional constraints to a blocked edge can modify it.

Usage

See also: Drawing aids.

Continue mode

1. Make sure there is no selection.
2. There are several ways to invoke the tool:
   • Press the Block Constraint button.
   • Select the Sketch → Constraints → Block Constraint option from the menu.
   • introduced in 1.0: Right-click in the 3D View and select the Constrain → Block Constraint option from the context menu.
   • Use the keyboard shortcut: K then B.
3. The cursor changes to a cross with the tool icon.
4. Select a single edge.
5. A constraint is added.
6. Optionally keep creating constraints.
7. To finish, right-click or press Esc, or start another geometry or constraint creation tool.

Run-once mode

1. Select one or more edges.
2. Invoke the tool as described above, or with one of the following additional options:
   • introduced in 1.0: Right-click in the 3D View and select the Block Constraint option from the context menu.
   • Right-click in the Elements section of the Sketcher Dialog and select the Block Constraint option from the context menu.
3. Depending on the selection one or more constraints are added.

Scripting

Sketch.addConstraint(Sketcher.Constraint('Block', Edge))

The Sketcher scripting page explains the values which can be used for Edge and contains further examples on how to create constraints from Python scripts.

Symmetric Constraint

Group Constraint

Sketcher

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  • Geometric Constraints: Coincident Constraint (Unified), Coincident Constraint, Point-On-Object Constraint, Horizontal/Vertical Constraint, Horizontal Constraint, Vertical Constraint, Parallel Constraint, Perpendicular Constraint, Tangent/Collinear Constraint, Equal Constraint, Symmetric Constraint, Block Constraint, Refraction Constraint
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