osnap
(osnap point esnap_mode)
The osnap function returns a 3D point as a result of applying entity snap mode(s) specified by the mode argument nearest to the specified point.
Arguments
esnap_mode specifies one or more entity snap modes as a text string containing one or more keywords. Multiple keywords are separated by commas.
Supported values are:
Keyword |
Entity Snap Mode |
_endp |
End point |
_mid |
Mid point |
_int |
Intersection |
_appimt |
Visual intersection |
_ext |
Extension |
_cen |
Center point |
_qua |
Quadrant |
_tan |
Tangent |
_ins |
Insertion point |
_nod |
Node (point entity) |
_par |
Parallel |
_per |
Perpendicular |
_nea |
Nearest point on entity |
Note: Use (setvar "SELECTBOX" size) to define the size of a box in pixels for entity selection.
: (setq x (osnap '(1 1) "_endp"))
(1.0 1.000 0.000)
: (setq x (osnap '(50 50) "_cen,_int"))
(50.000 50.000 0.000)