Autodesk 507B1-90A211-1301 User Guide - Page 421
NWD Geometry Compression, Reduce Precision, Caching
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NWD Page Use the options on this page to enable and disable geometry compression and select whether the precision of certain options is reduced when saving or publishing NWD files. Geometry Compression Enable Select this check box to enable geometry compression when NWD files are saved. Geometry compression results in less memory being required and therefore smaller NWD 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. See also: ■ "Native File Formats" on page 87 NWC Page Use the options on this page to manage reading and writing of cache files (NWC). By default, when Autodesk Navisworks opens a native CAD file (for example, AutoCAD or MicroStation), it first checks in the same directory whether there is a cache file present with the same name as the CAD file but with an .nwc extension. If there is, and this cache file is newer than the native CAD file, then Autodesk Navisworks 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. Model Node | 409