Toolbar / Icon:
Add-on:  QCAD Professional
Menu: Dimension > Baseline
Shortcut: D, B
Commands: dimbase | baselinedimension | db


Creates a rotated (linear), angular, or ordinate dimension, starting at the baseline of an existing dimension.


  1. Click the base line of an existing linear, angular or ordinate dimension.
  2. Set the second extension line end point with the mouse or enter a coordinate in the command line. The dimension lines are automatically stacked with a fixed distance between them from each other. You can adjust this distance (the dimension line increment) under Edit > Drawing Preferences > Dimension > Dimension Settings > Dimension line increment. You can also override this setting for individual dimensions in the options toolbar by unchecking Default spacing and entering a value for Spacing.