2012

Some CAL functions, such as pld and plt, return a point. Other functions,
such as nor and vec, return a vector.
Formatting Points and Vectors
A point or vector is a set of three real expressions enclosed in brackets ([ ]):
[r1,r2,r3]
The notation p1, p2, and so forth designates points. The notation v1, v2, and
so forth designates vectors. In drawings, points are displayed as dots, and
vectors are displayed as lines with arrows.
CAL supports points expressed in all formats.
Point formats
Point formatCoordinate system
[dist<angle]Polar
[dist<angle,z]Cylindrical
[dist<angle1<angle2]Spherical
Uses the @ prefix [@x,y,z]Relative
Uses the * prefix [*x,y,z]WCS (instead of UCS)
You can omit the following components of a point or vector: coordinate values
of zero and a comma immediately preceding the right bracket (]).
The following are valid points:
[1,2] is the same as [1,2,0]
[,,3] is the same as [0,0,3]
[ ] is the same as [0,0,0]
In the following example, the point is entered in the relative spherical
coordinate system with respect to the (WCS). The distance is 1+2=3; the angles
are 10+20=30 degrees and 45 degrees, 20 minutes.
[ *1+2<10+20<45d20"]
Commands | 165