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AddPoint

Description

Procedure AddPoint adds a vertex point to a newly created polygon. AddPoint is designed to be used with BeginPoly and EndPoly to define new polygon objects via VectorScript.

PROCEDURE AddPoint(px,py : REAL);
def vs.AddPoint(p):
    return None

Parameters

Name Type Description
px REAL X Coordinates of vertex.
py REAL Y Coordinates of vertex.

Examples

VectorScript

BeginPoly;
AddPoint(0,0);
AddPoint(2,0);
AddPoint(2,2);
AddPoint(1,3);
AddPoint(0,2);
AddPoint(0,0);
EndPoly;
{creates a polygon object}

BeginPoly;
AddPoint(x,y);
x := x + 1;
y := y + 1;
AddPoint(x,y);
x:= x + 1;
y := y - 1;
AddPoint(x,y);
EndPoly;
{creates a polygon with vertices as calculated}

Python

vs.BeginPoly()
vs.AddPoint(0,0)
vs.AddPoint(2,0)
vs.AddPoint(2,2)
vs.AddPoint(1,3)
vs.AddPoint(0,2)
vs.AddPoint(0,0)
vs.EndPoly()
#{creates a polygon object}
3: BEGIN
	AddPoint(Offset,0.0);
	AddPoint(Offset + Scaler*BreakWidth/4,Scaler*BreakHeight/2);
	AddPoint(Offset + Scaler*3*BreakWidth/4,-1*Scaler*BreakHeight/2);
	AddPoint(Offset + Scaler*BreakWidth,0.0);
	END;

BeginXtrd(LeftCabLength-CabThick,LeftCabLength);
BeginPoly;
AddPoint(X,Y);
AddPoint(CabHeight,Y);
AddPoint(CabHeight,Y-CabDepth+FaceThick);
AddPoint(KickHeight,Y-CabDepth+FaceThick);
AddPoint(KickHeight,Y-CabDepth+KickInset+CabThick);

BeginPoly;
	max:=2*PI;
	WHILE CurAng<max DO  BEGIN
		s:=sin(curang);c:=cos(curang);
		AddPoint(iRad*s,iRad*c);
		curAng:=curAng+ang;
	END;
# Create poly for roadbed
vs.BeginPoly()
vs.AddPoint( p40 )
vs.AddPoint( p5 )
vs.AddPoint( p6 )
vs.AddPoint( p70 )
vs.EndPoly()

# Draw paving
vs.ClosePoly()
vs.BeginPoly()
vs.AddPoint( p4 )
vs.AddPoint( p3 )
vs.AddPoint( p6 )
vs.AddPoint( p5 )
vs.EndPoly()

vs.MoveTo( 0, 0 )
vs.MoveTo( w, 0 )
vs.ArcTo( w, r1 * vs.Tan( theta / 2 ), 0 )
vs.AddPoint( w + r1 - ( r1 * vs.Cos( theta ) ), r1 * vs.Sin( theta ) )
vs.MoveTo( -( r1 - ( r1 * vs.Cos( theta ) ) ), r1 * vs.Sin( theta ) )
vs.ArcTo( 0, r1 * vs.Tan( theta / 2 ), 0 )
vs.LineTo( 0, 0 )
vs.EndPoly()

See also in tutorials: 04. Extrude 2D Shapes into 3D Solids, 12. Polygon Area and Centroid (Shoelace Formula), 13. Point-in-Polygon Test (Ray Casting), 14. Polygon Inward / Outward Offset

See Also

[AddPoint](AddPoint.md) [ArcTo](ArcTo.md) [BeginPoly](BeginPoly.md) [ClosePoly](ClosePoly.md) [CurveThrough](CurveThrough.md) [CurveTo](CurveTo.md) [DelVertex](DelVertex.md) [EndPoly](EndPoly.md) [GetHole](GetHole.md) [GetNumHoles](GetNumHoles.md) [GetPolylineVertex](GetPolylineVertex.md) [GetPolyPt](GetPolyPt.md) [GetVertexVisibility](GetVertexVisibility.md) [GetVertNum](GetVertNum.md) [InsertVertex](InsertVertex.md) [OpenPoly](OpenPoly.md) [Poly](Poly.md) [SetPolylineVertex](SetPolylineVertex.md) [SetPolyPt](SetPolyPt.md) [SetVertexVisibility](SetVertexVisibility.md) [Smooth](Smooth.md)

Version

Availability: from All Versions

Category