Page 12 of 17			DEFINING LINES

The data files for AcroSpin contain the information AcroSpin needs to display
an object.  Line segments are defined in the data file by first specifying
their endpoints.  You define an endpoint by giving four pieces of information:
its x, y, and z coordinates, and a unique name for it.	The coordinates can be
integers from -32768 to 32767, or floating point numbers such as 3.14159 or
6.23E-13.  Internally, AcroSpin will scale your coordinates so that your object
is centered nicely on the screen.  The unique name that you give to each
endpoint eliminates the need to reenter its coordinates for each line that
shares it in common.  You define a line by giving four pieces of information:
the names of its two endpoints, the color of the line, and its layer number.
Following this paragraph is the AcroSpin data file used to generate the next
object, a triangle.

-- This is a comment.  Comments start with two dashes, and go to the end of
-- the line.
Endpoint X -10.5 Y  0 Z 10.1 Name BottomLeft	-- Triangles have 3 endpoints.
Endpoint X  10.4 Y  0 Z 10.1 Name BottomRight
Endpoint X   0.2 Y 10 Z 10.1 Name Top
Line From BottomLeft  To Top	     Color 10 Layer 0 -- Triangles have 3
Line From BottomRight To Top	     Color 11 Layer 1 -- lines, which we've put
Line From BottomLeft  To BottomRight Color 12 Layer 2 -- on different layers.

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