Snapping means "gluing" your next 3d point onto an existing point. Snapping is available with most Draft and Arch tools, and can be enabled and disabled globally with the Snap Lock.png Draft ToggleSnap command. Each snap location below can also be enabled or disabled individually by clicking the corresponding button on the snap toolbar.

Draft Snap example.jpg

Available snap locations

  • Snap Midpoint.png Midpoint: the middle point of line and arc segments
  • Snap Perpendicular.png Perpendicular: on line and arc segments, perpendicularly to the latest point
  • Snap Grid.png Grid: the nodes of the Draft grid, if visible.
  • Snap Intersection.png Intersection: the intersection of 2 line or arc segments. Hover the mouse over the two desired objects to activate their intersection snaps
  • Snap Parallel.png Parallel: on an imaginary line parallel to a line segment. Hover the mouse over the desired object to activate its parallel snap
  • Snap Endpoint.png Endpoint: the endpoints of line, arc and spline segments
  • Snap Angle.png Angle: the special cardinal points of circles and arcs, at 45° and 90°
  • Snap Center.png Center: the center point of arcs and circles
  • Snap Extension.png Extension: on an imaginary line that extends beyond the endpoints of line segments. Hover the mouse over the desired object to activate its extension snap
  • Snap Near.png Near: the closest point on the nearest object
  • Snap Ortho.png Ortho: on imaginary lines that cross the last point, and extend at 0°, 45° and 90°
  • Snap Special.png Special: on special points defined by object available in version 0.17


  • Snap Lock.png Lock: turns snapping on/off globally
  • Certain additional snap locations can be obtained by combining 2 snap locations, such as ortho + extension, that will give you a snap point at the intersection of their imaginary lines.
  • Other, more complex snap locations can also be obtained by using constraining (by pressing SHIFT or X or Y or Z while drawing).
  • Pressing L while drawing locks the current angle of the line segment being drawn.
  • The maximum distance at which a point is snapped a snap location is specified in the preferences, and can also be changed on-the-fly by pressing [ or ] keys.
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