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SURFACE
3. Global Y-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 blank if this surface is being defined within a part):
1. Global X-coordinate of point a, the origin of the local system (see Figure 18.46–1).
2. Global Y-coordinate of poi nt a, the origin of the local
system.
3. Global Z-coordinate of point a, the origin of the local
system.
4. Global X-coordina te of point b on the local x-axis.
5. Global Y-coordina te of point b on the local x-axis.
6. Global Z-coordinate of point b on the local x-axis.
Second line (leave blank if this surface is being defined within a part):
1. Global X-coordinate of poi nt c on the local cylinder generator vector.
2. Global Y-coordinate of point c on the local cylinder generator vector.
3. Global Z-coordinate of point c on the local cy linder generator vector.
Third line:
1. The “word” STA RT.
2. Local x-coordinate of the st arting point of the line segments.
3. Local y-coordinate of the starting point of the line segments.
Fourth 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=REVOLUTION:
First line (leave blank if this surface is being defined within a part):
1. Global X-coordinate of point a, the origin of the local system (see Figur e 18.46–2).
2. Global Y-coordinate of poi nt a, the origin of the local
system.
3. Global Z-coordinate of point a, the origin of the local
system.
4. Global X-coordinate of point b on the symmetry axis (the local z-axis).
5. Global Y-coordinate of point b on the symmetry axis (the local z-axis).
6. Global Z-coordinate of point b on the symmetry axis (the local z-axis).
Second line:
1. The “word” STA RT.
2. Local r-coordinate of the starting point of the line segments.
18.46–6
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