Sketcher Dimension
Appearance
|
|
| Menu location |
|---|
| Sketch → Constraints → Dimension |
| Workbenches |
| Sketcher |
| Default shortcut |
| D |
| Introduced in version |
| 1.0 |
| See also |
| None |
Description[edit | edit source]
The Sketcher Dimension tool is the context-sensitive constraint tool of the Sketcher Workbench. Based on the current selection, it offers appropriate dimensional constraints, but also geometric constraints.
Usage[edit | edit source]
See also: Drawing aids.
- Optionally select one or more elements (edges or points). B-spline edges are currently not supported.
- There are several ways to invoke the tool:
- If the Dimensioning constraints preference is set to
BothorSingle tool(default): press theDimension button.
- Select the Sketch → Constraints →
Dimension option from the menu.
- Right-click in the 3D View and select the Dimension →
Dimension option from the context menu.
- If there is a selection: Right-click in the 3D View and select the
Dimension option from the context menu.
- Use the keyboard shortcut: D.
- If the Dimensioning constraints preference is set to
- The cursor changes to a cross with the tool icon.
- If you have not yet selected an element: select one.
- Depending on the selected element(s) a constraint is proposed.
- Optionally select an additional element.
- Optionally deselect an element by clicking it again.
- The proposed constraint is updated after every selection change.
- Optionally press the M key one or more times to cycle through other available constraints, if any.
- If a geometric constraint is proposed, selected elements may change giving a preview of the result.
- Do one of the following:
- Click in an empty area in the 3D View to confirm:
- If a dimensional constraint is created the clicked point determines its location. For a linear dimension the clicked point also determines its type:
horizontal dimension,
vertical dimension or
distance dimension.
- If a driving dimensional constraint is created, depending on the preferences, a dialog opens to edit its value.
- A constraint is added.
- This tool always runs in continue mode: optionally keep creating constraints.
- If a dimensional constraint is created the clicked point determines its location. For a linear dimension the clicked point also determines its type:
- To finish, right-click or press Esc, or start another geometry or constraint creation tool.
- Click in an empty area in the 3D View to confirm:
Notes[edit | edit source]
Horizontal dimensions and
vertical dimensions have a distinct behavior compared to
distance dimensions. The first two dimension types have signed dimension values, they also constrain the relative positions of the measured points. These will only switch places if the sign of the dimension value is changed. For example, if the value of a horizontal dimension remains positive, or negative, the left point will always remain the left point. This is not the case for the distance dimension type, which has an unsigned value. When using this tool to apply a dimensional constraint to points with the same X- or Y-coordinate, you need to take care when picking the point to position it. You can verify which dimension type will be created by checking the last item in the Constraints section of the Sketcher Dialog, this will dynamically update as you move the mouse.
- General: New Sketch, Edit Sketch, Attach Sketch, Reorient Sketch, Validate Sketch, Merge Sketches, Mirror Sketch, Leave Sketch, Align View to Sketch, Toggle Section View, Stop Operation, Grid, Snap, Rendering Order
- Geometries: Point, Polyline, Line, Arc From Center, Arc From 3 Points, Elliptical Arc, Hyperbolic Arc, Parabolic Arc, Circle From Center, Circle From 3 Points, Ellipse From Center, Ellipse From 3 Points, Rectangle, Centered Rectangle, Rounded Rectangle, Triangle, Square, Pentagon, Hexagon, Heptagon, Octagon, Polygon, Slot, Arc Slot, B-Spline, Periodic B-Spline, B-Spline From Knots, Periodic B-Spline From Knots, Toggle Construction Geometry
- Constraints:
- Dimensional Constraints: Dimension, Horizontal Dimension, Vertical Dimension, Distance Dimension, Radius/Diameter Dimension, Radius Dimension, Diameter Dimension, Angle Dimension, Lock Position
- 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
- Constraint Tools: Toggle Driving/Reference Constraints, Toggle Constraints
- Sketcher Tools: Fillet, Chamfer, Trim Edge, Split Edge, Extend Edge, External Projection, External Intersection, Carbon Copy, Select Origin, Select Horizontal Axis, Select Vertical Axis, Move/Array Transform, Rotate/Polar Transform, Scale, Offset, Mirror, Remove Axes Alignment, Delete All Geometry, Delete All Constraints, Copy Elements, Cut Elements, Paste Elements
- B-Spline Tools: Geometry to B-Spline, Increase B-Spline Degree, Decrease B-Spline Degree, Increase Knot Multiplicity, Decrease Knot Multiplicity, Insert Knot, Join Curves
- Visual Helpers: Select Under-Constrained Elements, Select Associated Constraints, Select Associated Geometry, Select Redundant Constraints, Select Conflicting Constraints, Toggle Circular Helper for Arcs, Toggle B-Spline Degree, Toggle B-Spline Control Polygon, Toggle B-Spline Curvature Comb, Toggle B-Spline Knot Multiplicity, Toggle B-Spline Control Point Weight, Toggle Internal Geometry, Switch Virtual Space
- Additional: Sketcher Dialog, Preferences, Sketcher scripting
- Getting started
- Installation: Download, Windows, Linux, Mac, Additional components, Docker, AppImage, Ubuntu Snap
- Basics: About FreeCAD, Interface, Mouse navigation, Selection methods, Object name, Preferences, Workbenches, Document structure, Properties, Help FreeCAD, Donate
- Help: Tutorials, Video tutorials
- Workbenches: Std Base, Assembly, BIM, CAM, Draft, FEM, Inspection, Material, Mesh, OpenSCAD, Part, PartDesign, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Surface, TechDraw, Test Framework
- Hubs: User hub, Power users hub, Developer hub