Modifying the Dimension Overrun/Blanking

This task shows you how to modify dimensions extension line overrun and/or blanking either together or separately.

Open the Brackets_views02.CATDrawing document. Create a distance dimension, for example.

1. Drag the overrun manipulator(s) to a new position, as shown herebelow:

Press the Ctrl key and drag the desired manipulator for modifying one extension line only.

2. Drag the blanking manipulator(s) to a new position, as shown herebelow:

3. If you need to be more precise, double-click the manipulator.

The Blanking Edition dialog box displays.

4. Enter the desired value to modify the blanking.

You can also modify the overrun/blanking of only one extension line of the dimension.

5. Double-click the overrun manipulator(s).

The Overrun Edition dialog box appears.

6. Enter the desired overrun value and un-check the Apply to both sides option from the Overrun Edition dialog box.

Note that you can also right-click the dimension and select the Edit -> Properties option from the displayed contextual menu. The Properties dialog box appears. Select the Extension Line tab and modify the desired value(s) of the Overrun / Blanking Extremities option(s).

Overrun is the overrun minimum value. As an example, for a cumulated dimension (for ISO Standard):


you can increase the overrun size	you can not decrease it below the minimum value

To set Cumulate dimension extension line length and text position, see the following parameter in the standards: CUMLExtMode in Dimension parameters.