The 3D ACIS® Modeler (ACIS) is Spatial’s prominent 3D solid modeling engine. 3D InterOp is a CAD data translation framework (Interoperability)

From DocR19

Call the function same_vector in vector.hxx.

Signature

logical same_vector(SPAvector const& v1, SPAvector const& v2, const double res = SPAresabs);

Header Files

#include "vector.hxx"

Example

SPAvector v1 = some_vector1;
SPAvector v2 = some_vector2;
logical same_vec = same_vector( v1, v2 );

Scheme Commands

; There is no direct Scheme interface:
(define g1 (gvector 2 0 0))
(define g2 (gvector 2 0 0))
(define g3 (gvector:- g1 g2))
(test:less-than 1e-6 (gvector:length g3) "g1 and g2 are the same")
;*** Error: g1 and g2 are the same       0.000001 !< 0.000000
;#f

Notes

• Two vectors are deemed to be the same if the vector of the difference between the two vectors (that is, a - b) has length less than the given tolerance.
• The default tolerance used is SPAresabs.

Related Content

• Other information on FAQs on Determine if two vectors are the same?.