*SURFACE
3. GlobalY-coordinate or z-coordinate of the starting point of the line segments.
Second and subsequent data lines define the various line, circular, and parabolic segments (see
below for their format) that form the profile of the analytical surface.
Data lines to define surfaces created with TYPE=CYLINDER:
First line (leave blankif this surface is being defined within a part):
1. GlobalX-coordinate of point a, the origin o fthe lo cal system (see Figure 18.46–1).
2. GlobalY-coordinate of point a, theorigin of the local system.
3. GlobalZ-coordinate of p oint a, the origin of the local system.
4. GlobalX-coordinate ofpoint bon the local x-axis.
5. GlobalY-coordinate o f point bon the local x-axis.
6. GlobalZ-coordinate ofpoint bon the local x-axis.
Second line (leave blank ifthis surface is being defined within a part):
1. GlobalX-coordinate of point con the local cylinder generator vector.
2. GlobalY-coordinate of point con the local cylinder generator vector.
3. GlobalZ-coordinate of point con the local cylinder generator vector.
Third line:
1. The “word” START.
2. Localx-coordinate of the s tarting point of the line segments.
3. Localy-coordinate of the starting point of the line segments.
Fourthand subsequent data lines define the various line, circular, and parabolic segments (see below
for their format) that form the profile of the analytical surface.
Data lines to define surfaces created with TYPE=REVOLUTION:
First line (leave blankif this surface is being defined within a part):
1. GlobalX-coordinate of point a, the origin of the loc al system (see Figure 18.46–2).
2. GlobalY-coordinate of point a, theorigin of the local system.
3. GlobalZ-coordinate of p oint a, the origin of the local system.
4. GlobalX-coordinate of point bon the symmetry axis (the loc al z-axis).
5. GlobalY-coordinate of point bon the sym metry axis (the local z-axis).
6. GlobalZ-coordinate of poi nt bon the symmetry axis (the local z-axis).
Second line:
1. The “word” START.
2. Localr-coordinate of the starting point of the line segments.
18.46–6
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