Altium NEXUS Documentation


Created: June 10, 2016 | Updated: April 11, 2017
This documentation page references Altium NEXUS/NEXUS Client (part of the deployed NEXUS solution), which has been discontinued. All your PCB design, data management and collaboration needs can now be delivered by Altium Designer (with Altium Designer Enterprise Subscription) and a connected Altium 365 Workspace. Check out the FAQs page for more information.

Parent page: CAMtastic Commands

The following pre-packaged resource, derived from this base command, is available:

Applied Parameters: CommandMode=CAM


This command is used to place radial dimension objects on the current document. A radial dimension reflects the radius of an arc or circle object.


This command is accessed from the CAMtastic Editor by choosing the Place » Dimension » Radius command from the main menus.


After launching the command, you will enter dimension placement mode. Placement is made by performing the following sequence of actions:

  1. Position the cursor over the edge of the required arc or circle and click.
  2. Move the cursor and click to position vertices that define the dimension's leader shape.
  3. When the leader shape is as required, right-click to place the dimension text.
  4. Continue placing further radial dimensions or right-click, or press Esc, to exit dimension placement mode.


  1. Dimension properties including text style, height, and accuracy, can be defined on the CAM Editor - Draw Dimension page of the Preferences dialog. Changing these settings will only apply to dimensions that you are going to place, and not those that have already been placed.
  2. All dimension values will be displayed in the current measurement units, as displayed in the CAMtastic panel (default is inches). If the current measurement units are changed (inches/mm), only subsequently placed dimension objects will be displayed in the new current units, and not those already placed.
  3. Dimensions will be drawn using the current DCode. Set the required DCode in the DCode field on the CAMtastic panel.
  4. Dimensions will be drawn on the current layer. The current layer is displayed on the CAMtastic panel at the top of the layers list. Double-clicking on any layer in the layers list will cause it to become the current layer.


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