SPLINE, P1, P2, P3, P4, P5, P6, XV1, YV1, ZV1, XV6, YV6, ZV6
Generates a segmented spline through a series of keypoints.
P1, P2, P3,
. . . , P6Keypoints through which the spline is fit. At least two must
be defined. If P1 = P, graphical picking is enabled
and all remaining command fields are ignored (valid only in the GUI).
The following fields are used only if specified end slopes on the line are desired, otherwise zero curvature end slopes will be automatically calculated to produce a line which is "straight" in the active coordinate system. To specify end slopes, use the following fields to define a "slope vector" (one for each end of the line, if desired) that has its tail at the origin and its head at the point XVn,YVn, ZVn in the active coordinate system [CSYS]. The corresponding end slope of the line will then be parallel to this "slope vector."
XV1, YV1, ZV1Location (in the active coordinate system) of the head of
the "slope vector" corresponding to the slope at the P1 end
of the spline. The tail of the vector is at the origin of the coordinate
system.
XV6, YV6, ZV6Location of the head of the "slope vector" corresponding to
the slope at the P6 (or the last keypoint if fewer
than six specified) end of the spline.