This export converter writes out the 3d database to an ASCII formatted or
binary formatted 'StereoLithography STL' file which can be read by many CAD/CAM related software packages.
An object called 'test' containing a single triangle is written to the STL
file as follows:
facet normal 0 1 0
vertex 0 4 0
vertex 0.517638 3.93185 0
vertex 0.5 3.93185 -0.133975
Dialog Box Options
The following information explains the various options on the dialog box:
Output Only 1 'Solid' Entity
If this option is enabled (checkmarked) then each object defined within
the database will be output as a separate object in the STL file (enclosed within
its own 'solid' definition). If this option is disabled then all objects
within the database will be compressed into a single entity before being
output to the STL file as a single 'solid' definition.
If this option is enabled (checkmarked) then the STL file will be written in
binary, else it will be written in ASCII format.
NOTE: the binary file format does not allow more than one 'solid' to be
defined so this export converter compresses all of the objects defined within
the 3d database into a single object before outputting them to the binary STL
file (this is equivalent to enabling the 'Output Only 1 Solid Entity' option.
This does not apply for the ASCI I mode which allows one or more 'solid'
definitions to be created.
Reverse Orientation of Triangles
If this option is enabled (checkmarked) then the orientation of all
triangles will be reversed (this will effectively swap the orientation of
the triangles' geometric normals). This option will not flip the orientation
of the vertex normals.
Flip Geometric Normals
If this option is enabled (checkmarked) then the orientation of each geometric
normal will be reversed. You may need to enable this option if the STL file
looks 'dark' in the final destination rendering program.
Line Terminator Type
This common option selects which line terminator is to be used for the ASCII
Files destined for DOS/PC machines should use CR/LF,
Files for UNIX machines should use LF, and
Files for Macintosh machines should use CR.
The default is specific to which machine this converter is presently
running on: CRLF for DOS/PC, LF for UNIX and CR for Macintosh. This option
normally does not have to be specified unless you will be using the exported
ASCII file on a different type of computer.