GPAHSC - Set Annotation Height Scale Factor

Purpose

Use GPAHSC to insert a Set Annotation Height Scale Factor structure element into the open structure following the element pointer or to replace the element pointed at by the element pointer with a Set Annotation Height Scale Factor structure element depending on the current edit mode.

The specified annotation height scale factor specifies a ratio of the annotation character height to the workstation's nominal character height. Because the current annotation text character height in the graPHIGS API traversal state list is expressed in Device Coordinates (DC), the graPHIGS API multiplies the specified value by the nominal character height and sets the specified value to the entry.

The current annotation character height entry in the graPHIGS API traversal state list is also set by the Set Annotation Height (GPAH) structure element.

The traversal default value for annotation height scale factor is 1.0.

For more information concerning annotation text and annotation text attributes, see The graPHIGS Programming Interface: Understanding Concepts

Parameters