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Draft Workbench tools allow you to pick points, distances, radiuses, and angles graphically by clicking on the 3D view with the pointer.
However, when these parameters need to be precise, it is possible to enter the exact Draft Coordinates in the dialog for the tool.
Another way of selecting more precise points is by using snapping. Snapping means "gluing" your next point onto an existing point or feature of another object.
Snapping is available with most Draft and Arch Workbench tools, and can be enabled and disabled globally with the File:Snap Lock.svg Draft ToggleSnap button, located in the snap toolbar, which can be made active with the menu View → Toolbars → Draft Snap. Each snap method can be enabled or disabled individually by clicking the corresponding button on the toolbar.
While using many snapping methods at the same time can be useful to draw your objects in the desired positions, it can also be problematic if your cursor attaches constantly to the wrong points. If this is the case, try using only one snapping method at the time.
Line snapping perpendicularly to another line
Available snap locations
- File:Snap Near.png Near: snaps to the closest point or edge on the nearest object.
- File:Snap Extension.png Extension: snaps on an imaginary line that extends beyond the endpoints of line segments. Hover the mouse over the desired object to activate its extension snap.
- File:Snap Parallel.png Parallel: snaps on an imaginary line parallel to a line segment. Hover the mouse over the desired object to activate its parallel snap.
- File:Snap Grid.png Grid: snaps to the intersections of the grid lines, if the grid is visible.
- File:Snap Endpoint.png Endpoint: snaps to the endpoints of line, arc and spline segments.
- File:Snap Midpoint.png Midpoint: snaps to the middle point of line and arc segments.
- File:Snap Perpendicular.png Perpendicular: on line and arc segments, snaps perpendicularly to the latest point.
- File:Snap Angle.png Angle: snaps to the special cardinal points of circles and arcs, at 45° and 90°.
- File:Snap Center.png Center: snaps to the center point of arcs and circles.
- File:Snap Ortho.png Ortho: snaps on imaginary lines that cross the last point, and extend at 0°, 45° and 90°.
- File:Snap Intersection.png Intersection: snaps to the intersection of two line or arc segments. Hover the mouse over the two desired objects to activate their intersection snaps.
- File:Snap Special.png Special: snaps on special points defined by the object. introduced in version 0.17
- File:Snap Dimensions.png Dimensions: lets you snap to one of the three lines making up the draft dimension.
- File:Snap WorkingPlane.png Working plane: always places the snapped point on the current working plane, even if you snap to a point outside that working plane.
Advanced snapping
- Additional snap locations can be obtained by combining two snapping methods, such as Draft Ortho and Draft Extension, that will give you a snap point at the intersection of their imaginary lines.
- Other snap locations can be obtained by using Draft Constrains, that is, by holding Shift or pressing X, Y or Z while drawing.
- Press Q while drawing to insert a "hold point" at the current location of the cursor. You will then be able to snap orthogonally to these hold points, and at the intersections of their orthogonal axes. If Draft Midpoint snapping is enabled, you will also be able to snap at the mid distance between any two hold points. introduced in version 0.17
Options
- File:Draft ToggleGrid.png Toggle grid: turns the working plane grid on and off.
- File:Snap Lock.png Lock: turns snapping on and off globally.
- The maximum distance at which a point is considered a snapping point is specified in the Draft Preferences, and can also be changed on-the-fly by pressing [ (increase) or ] (decrease) keys.
Deprecated
- Pressing L while drawing locks the current angle of the line segment being drawn.
- Drafting: Line, Polyline, Fillet, Arc, Arc by 3 points, Circle, Ellipse, Rectangle, Polygon, B-spline, Cubic Bézier curve, Bézier curve, Point, Facebinder, ShapeString, Hatch
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- Draft Tray: Select plane, Set style, Toggle construction mode, AutoGroup
- Snapping: Snap lock, Snap endpoint, Snap midpoint, Snap center, Snap angle, Snap intersection, Snap perpendicular, Snap extension, Snap parallel, Snap special, Snap near, Snap ortho, Snap grid, Snap working plane, Snap dimensions, Toggle grid
- Miscellaneous: Apply current style, Layer, Manage layers, Add a new named group, Move to group, Select group, Add to construction group, Toggle normal/wireframe display, Create working plane proxy, Heal, Show snap toolbar
- Additional: Constraining, Pattern, Preferences, Import Export Preferences, DXF/DWG, SVG, OCA, DAT
- Context menu:
- Layer container: Merge layer duplicates, Add new layer
- Layer: Activate this layer, Select layer contents
- Text: Open hyperlinks
- Wire: Flatten
- Working plane proxy: Write camera position, Write objects state
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