Annotation scale is used to determine text height or the overall scale of an annotation object.
The approach used to calculate an annotation scale depends on whether the object is placed in model space or on a layout.
In Model Space
When annotation objects are placed in model space, the following must be considered:
- Drawing or plot scale if plotting from model space.
- Viewport scale of a floating viewport on a layout.
The text height or scale of an annotation object in model space can be set to a fixed text height or be controlled by assigning the object an annotation scale. Annotation objects assigned a fixed text height or object scale remain proportionate in size to the current plot or viewport scale.
If the Annotative property of an annotation object is enabled, the text height or scale of the annotation object adjusts based on the current drawing annotation or viewport scale to remain at the same output size regardless.
On a Layout
Annotation objects created on a layout should be created at their full size since layouts are commonly output at a plot scale of 1:1. For example, text with a height of 1/8” will be output at 1/8” unless a scale other than 1:1 is used to output a layout.