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Revision History: 99-21
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Export Tools
It is often very useful to export cave data to other programs such as drawing programs, editors, CAD programs and GIS. These program often have specialized tools that can display or analyze cave data in ways that Compass cannot. For this reason, Compass has several export tools that can be used to export cave data in different formats.
3D Exporter
The 3D Exporter is a tool that is used to export 2D and 3D information about caves and cave passages to other programs. Currently there three export file options: Shapefiles, VRML files and DXF files:
Shapefiles. The image above show the Shapefile page of the 3D Exporter. Shapefiles are GIS files designed to be read and imported by ESRI programs such ArcView and ArcMap. They can also be read by many other GIS programs. Click here for futher information about ESRI programs and the company's support for cavers.
VRML. VRML stands for Virtual Reality Modeling Language and it is used to display 3D images and models on the internet. The advantage of VRML is that you can display the images on virtually any computer that has a browser. The images can be on the internet or just in file on a computer. Many people use VRML files to display models of group cave projects on the internet.

The image to the right shows the VRML export options. They include passage transparency, animations, texturing, coloring by depth and spline surfaces.

For detailed information about VRML, including live 3D images of small and medium sized caves, click here.

DXF. DXF files were invented for importing data into Autocad, one of the most widely used and popular Computer Aided Design Porgrams (CAD). Today DXF fiels are a widely used standard that is supported by virtuall all CAD programs and many drawing programs, including Corel Draw.

The image to the right shows the DXF export page and all the options. Setting these options controls the data the is exported into the DXF file. The options include Layers, Labeling, 3D Modeling, a Scale Bar, scaling and a North Arrow. There are also special modes to handle programs that don't fully support the DXF standard.

Passage Wall Exports. Compass uses a special 3D Passage Modeling engine to generate solid 3D models of cave passages. These models can be exported to all the different files format supported by the 3D Exporter. The page to the right shows all the options.


Custom Exporter
Custom Exporter. The Custom Exporter is a general purpose export tool that is designed to export various kinds of cave data to databases and spreadsheets. You have control over which items are exported including From Station, To Station, the Cartesian coordinates for each station and the Azimuth, Length and Inclination for each shot. Fields can be comma delimited or tab delimited.
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