What’s New In ArcGIS 9.2 for CAD: Part 6
Like having the styling of the hotrod and the reliability of power steering and power breaks, people want the benefits of both methods of working with CAD data in ArcMap. They want the feature class access provided by the CAD Feature Class (blue icon) and the default CAD symbology of the CAD Drawing Layer (white icon). Most often people choose the blue icon to add CAD features to the map, and the first thing they do is change the symbology of the CAD feature class to make it look more like the CAD file was drawn in CAD.
In previous versions of ArcGIS, CAD features are treated like other GIS data sources and are assigned a single random symbol for the entire feature class. In ArcGIS 9.2 the initial symbology is based on the CAD symbology. CAD color, line style, font, line weight and other information is used to draw the CAD features like they appear inside the CAD application that created them. With the release of ArcGIS 9.2 the need for the two different methods for working with CAD data is greatly diminished. With ArcGIS 9.2, I can’t think of a good reason to use the CAD Drawing Layer (white icon) anymore.
In ArcGIS 9.2 you can still use the CAD Drawing Layer (white icon) to draw all of the CAD entities with CAD properties as a single layer; however the new default symbology for the CAD feature class is actually better. For example, the white icon doesn’t support true type fonts, standard CAD line styles or line weights. Work has been done to create a CAD symbology set for standard CAD symbology values including line style, line weight and standard CAD color values. In ArcGIS 9.2 the “more useful” CAD feature class representation (blue icons) of the CAD data, also has superior default symbology, as compared with the single CAD Drawing Layer (white icon).
Improved default symbology for CAD text associates true type fonts used in CAD to true type fonts available in ArcMap. Default values for complex CAD text justification are also improved, which means CAD text in ArcMap looks more like it did in CAD.