Class visibility in the standards

In the class section of the Layermap worksheet, class names available for inclusion in the viewports/views are listed down the left side of the worksheet in the first column. The visibility of a specific class is indicated by an alphabetic identifier, which is located in the worksheet cell which cross-references the layer and the viewport/view.

The identifier can take on one of the following values:

Default class attributes, such as line style and pen color, are no longer controlled from the Layermap worksheet.