Altium Designer Documentation

Configuring Schematic Comment Object Properties in Altium Designer

Created: November 29, 2017 | Updated: December 11, 2020
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Parent page: Comment

Schematic Editor object properties are definable options that specify the visual style, content and behavior of the placed object. The property settings for each type of object are defined in two different ways:

  • Pre-placement settings – most Comment object properties, or those that can logically be pre-defined, are available as editable default settings on the Schematic - Defaults page of the Preferences dialog (accessed from the  button at the top-right of the workspace). Select the object in the Primitive List to reveal its options on the right.
  • Post-placement settings – all Comment object properties are available for editing in the Properties panel when a placed Comment is selected in the workspace.

The Comment default settings in the Preferences dialog and the Comment mode of the Properties panel   The Comment default settings in the Preferences dialog and the Comment mode of the Properties panel   The Comment default settings in the Preferences dialog and the Comment mode of the Properties panel

In the below properties listing, options that are not available as default settings in the Preferences dialog are noted as "Properties panel only".

Location (Properties panel only)

  • (X/Y)
    • X (first field) - the current X (horizontal) coordinate of the reference point of the object, relative to the current workspace origin. Edit to change the X position of the object. The value can be entered in either metric or imperial; include the units when entering a value whose units are not the current default. 
    • Y (second field) - The current Y (vertical) coordinate of the reference point of the object, relative to the current origin. Edit to change the Y position of the object. The value can be entered in either metric or imperial; include the units when entering a value whose units are not the current default. 
  • Rotation - use the drop-down to select the rotation. Choices are: 0 Degrees90 Degrees180 Degrees, and 270 Degrees.

Properties

  • Component (Properties panel only) - displays the associated component.
  • Name - displays the name.
  • Value - displays the value.
    • Autoposition - check to enable auto-positioning with the associated object.
    • Lock Parameter - check to lock the parameter.
    • Allow Synchronization with Database - check to synchronize with the database. This option is used to control if the comment can be updated. By default, these options are enabled to always allow synchronization with the source library/database. You may disable this option to prevent that comment from being included in an update process.
  • Font - use the controls to select the font, font size, font color, and add any desired special characteristics to the font, such as bold, italics, and underlines.
  • Justification - click the arrows to configure the justification of the text or circle to center.  
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