2011

Table Of Contents

opens this file instead as it has already been converted to Autodesk Navisworks format and, therefore, opens

much quicker. If, however, there is no cache file present, or the cache file is older than the native CAD file, then

Autodesk Navisworks has to open the CAD file and convert it. By default, it writes a cache file in the same

directory and with the same name as the CAD file, but with the .nwc extension, for speeding up the opening of

this file in future.

Caching

Read Cache Select this check box to use cache files when Autodesk Navisworks opens native CAD files.

Clear this check box if you don’t want to use cache files. This ensures that Autodesk Navisworks converts native

CAD files each time they are opened.

Write Cache Select this check box to save cache files when native CAD files are converted. Generally, cache files

are much smaller than original CAD files, therefore, selecting this option does not take up too much disk space.

Clear this check box if you don’t want to save cache files.

Geometry Compression

Enable Select this check box to enable geometry compression when NWC files are saved.

Geometry compression results in less memory being required and therefore smaller NWC files.

Reduce Precision

Coordinates Select this check box to reduce the precision of coordinates.

Precision Specifies the precision value for coordinates. The larger the value, the less precise coordinates are.

Normals Select this check box to reduce the precision of normals.

Colors Select this check box to reduce the precision of colors.

Texture Coordinates Select this check box to reduce the precision of texture coordinates.