VS:AngBVec: Difference between revisions
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This is precisely what Vec2Ang does, except that Vec2Ang uses the X axis as the other vector. | This is precisely what Vec2Ang does, except that Vec2Ang uses the X axis as the other vector. | ||
([[User: | ([[User:CBM-c-| _c_]], 2010 Dec. 22) See vector diagrams on [[User:CBM-c-/VS-Math| VS Math]]. | ||
</remark> | </remark> | ||
| Line 54: | Line 54: | ||
PROCEDURE Example; | PROCEDURE Example; | ||
VAR | VAR | ||
pt1, pt2, pt3, pt4 :VECTOR; | pt1, pt2, pt3, pt4 :VECTOR; | ||
BEGIN | BEGIN | ||
GetPt(pt1.x, pt1.y); | GetPt(pt1.x, pt1.y); | ||
GetPtL(pt1.x, pt1.y, pt2.x, pt2.y); | GetPtL(pt1.x, pt1.y, pt2.x, pt2.y); | ||
GetPtL(pt2.x, pt2.y, pt3.x, pt3.y); | GetPtL(pt2.x, pt2.y, pt3.x, pt3.y); | ||
MoveTo(pt1.x, pt1.y); | MoveTo(pt1.x, pt1.y); | ||
LineTo(pt2.x, pt2.y); | LineTo(pt2.x, pt2.y); | ||
LineTo(pt3.x, pt3.y); | LineTo(pt3.x, pt3.y); | ||
pt4 := (pt1 + pt3) / 2; | pt4 := (pt1 + pt3) / 2; | ||
TextOrigin(pt4.x, pt4.y); | TextOrigin(pt4.x, pt4.y); | ||
CreateText(Concat(AngBVec(pt1 - pt2, pt3 - pt2))); | CreateText(Concat(AngBVec(pt1 - pt2, pt3 - pt2))); | ||
END; | END; | ||
RUN(Example);</code> | RUN(Example);</code> | ||
Revision as of 03:49, 18 January 2022
.VectorScript|VectorScript ..VS:Function Reference|Function Reference ..VS:Function_Reference_Appendix|Appendix
Description
Returns the positive angle between the two specified vectors, in the range of 0~180 degrees.
When used with 3D vectors, the angle returned will be in a plane defined by the two vectors.
FUNCTION AngBVec(
v1 :VECTOR;
v2 :VECTOR) : REAL;
def vs.AngBVec(v1, v2):
return REAL
Parameters
v1 VECTOR First vector to be compared. v2 VECTOR Second vector to be compared.
Return Value
Returns a REAL value which is the angle (in degrees) between the two vectors.
Remarks
This is precisely what Vec2Ang does, except that Vec2Ang uses the X axis as the other vector.
( _c_, 2010 Dec. 22) See vector diagrams on VS Math.
Example
VectorScript
PROCEDURE Example;
VAR
pt1, pt2, pt3, pt4 :VECTOR;
BEGIN
GetPt(pt1.x, pt1.y);
GetPtL(pt1.x, pt1.y, pt2.x, pt2.y);
GetPtL(pt2.x, pt2.y, pt3.x, pt3.y);
MoveTo(pt1.x, pt1.y);
LineTo(pt2.x, pt2.y);
LineTo(pt3.x, pt3.y);
pt4 := (pt1 + pt3) / 2;
TextOrigin(pt4.x, pt4.y);
CreateText(Concat(AngBVec(pt1 - pt2, pt3 - pt2)));
END;
RUN(Example);
Python
Version
Availability: from All Versions