Controlling the Appearance of Linetypes in Model and Paper Space

Overview

FireCAD assigns custom linetypes to wirepath polylines so that cable and wire type can be identified at a glance. The letters embedded in each linetype (for example, the "F" on a fire alarm cable) depend on AutoCAD's linetype scaling settings. When these scales are not set correctly, the letters do not render and the polyline appears as a plain dashed line.

This article covers the two AutoCAD system variables that control linetype display: MSLTSCALE (model space) and PSLTSCALE (paper space).

Controlling Linetype Display in Model Space

When MSLTSCALE is set incorrectly, linetype lettering does not show in model space:

To fix this:

1. Type MSLTSCALE at the command line and set the value to 0.
2. Run REGEN or REGENALL to refresh the display.

The lettering is now visible:

Controlling Linetype Display in Paper Space

The same issue can occur in paper space viewports when PSLTSCALE is not set correctly:

To fix this:

1. Activate the paper space viewport, type PSLTSCALE at the command line, and set the value to 0.
2. Run REGENALL to refresh all viewports.

The lettering is now visible in paper space:

Related Articles

• Change PSLTSCALE Setting When Linetypes Are Not Appearing in Paper Space

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