omc-geometry.lsp¶
Commands and functions for handling raw geometry.
Commands¶
LIST-LEN¶
ILP¶
Intersect line and plane. Draw a point in the intersection of a line and a plane.
IPP¶
Intersect two planes. Draw a line in the intersection of two planes.
ROUND-LINE-COORDS¶
Round specified coordinates of the start and end points of lines to a multiple of the specified divisor.
INVERT-LINES¶
Switch start and end points of the lines selected.
Functions¶
(omc-geometry-v+ vector0 vector1)
Return the sum of two 3d vectors.
(omc-geometry-v- point0 point1)
Return the difference of two 3d vectors.
(omc-geometry-sv* scalar vector)
Multiply a scalar and a 3d vector.
(omc-geometry-dot vector0 vector1)
Return the dot-product of two 3d vectors.
(omc-geometry-cross vector0 vector1)
Return the cross-product u x v. Arguments are 3d vectors.
(omc-geometry-norm vector)
Return the L2 norm of a 3d vector.
(omc-geometry-intersect-line-plane point0-in-line point1-in-line point0-in-plane point1-in-plane point2-in-plane)
Return the point of where a line and a plane intersect.
(omc-geometry-intersect-plane-plane point0-in-plane0 point1-in-plane0 point2-in-plane0 point0-in-plane1 point1-in-plane1 point2-in-plane1)
Return two points on the line where two planes intersect.
(omc-geometry-round num div)
Round number to a multiple of divisor. Round using half to even. See https://en.wikipedia.org/wiki/Rounding#Round_half_to_even
(omc-geometry-test-round)
Global variables¶
precision assigned in
- c:list-len
Functions called on load¶
- princ