PixelFarm.Drawing.PointD CreateExtendedInnerEdges(PixelFarm.Drawing.PointD p0, PixelFarm.Drawing.PointD p1)
{
PixelFarm.VectorMath.Vector2 v2 = new PixelFarm.VectorMath.Vector2(p1.X - p0.X, p1.Y - p0.Y);
PixelFarm.VectorMath.Vector2 r1 = v2.RotateInDegree(270).NewLength(3);
return(new PixelFarm.Drawing.PointD(p1.X + r1.x, p1.Y + r1.Y));
//if (LeftPointKind == Vec2PointKind.Touch1 || LeftPointKind == Vec2PointKind.Touch2)
//{
// double rad = Math.Atan2(p1.Y - p0.Y, p1.X - p0.X);
// double currentLen = CurrentLen(p0, p1);
// if (currentLen - 3 < 0)
// {
// return p0;//***
// }
// double newLen = currentLen - 3;
// //double new_dx = Math.Cos(rad) * newLen;
// //double new_dy = Math.Sin(rad) * newLen;
// return new PixelFarm.Drawing.PointD(p0.X + (Math.Cos(rad) * newLen), p0.Y + (Math.Sin(rad) * newLen));
//}
//else
//{
// PixelFarm.VectorMath.Vector2 v2 = new PixelFarm.VectorMath.Vector2(p1.X - p0.X, p1.Y - p0.Y);
// PixelFarm.VectorMath.Vector2 r1 = v2.RotateInDegree(270).NewLength(3);
// return new PixelFarm.Drawing.PointD(p1.X + r1.x, p1.Y + r1.Y);
//}
}
PixelFarm.Drawing.PointD CreateExtendedOuterEdges(PixelFarm.Drawing.PointD p0, PixelFarm.Drawing.PointD p1, double dlen = 3)
{
//create perpendicular line
PixelFarm.VectorMath.Vector2 v2 = new PixelFarm.VectorMath.Vector2(p1.X - p0.X, p1.Y - p0.Y);
PixelFarm.VectorMath.Vector2 r1 = v2.RotateInDegree(90).NewLength(3);
return(new PixelFarm.Drawing.PointD(p1.X + r1.x, p1.Y + r1.Y));
//if (LeftPointKind == Vec2PointKind.Touch1 || LeftPointKind == Vec2PointKind.Touch2)
//{
// double rad = Math.Atan2(p1.Y - p0.Y, p1.X - p0.X);
// double currentLen = CurrentLen(p0, p1);
// double newLen = currentLen + dlen;
// //double new_dx = Math.Cos(rad) * newLen;
// //double new_dy = Math.Sin(rad) * newLen;
// return new PixelFarm.Drawing.PointD(p0.X + (Math.Cos(rad) * newLen), p0.Y + (Math.Sin(rad) * newLen));
//}
//else
//{
// //create perpendicular line
// PixelFarm.VectorMath.Vector2 v2 = new PixelFarm.VectorMath.Vector2(p1.X - p0.X, p1.Y - p0.Y);
// PixelFarm.VectorMath.Vector2 r1 = v2.RotateInDegree(90).NewLength(3);
// return new PixelFarm.Drawing.PointD(p1.X + r1.x, p1.Y + r1.Y);
//}
}
static void CreateInnerBorder(VertexStore vxs, double x0, double y0, double x1, double y1, double w)
{
//create 'inner border box' of a line a line (x0,y0)=>(x1,y1)
PixelFarm.VectorMath.Vector2 vector = new PixelFarm.VectorMath.Vector2(x1 - x0, y1 - y0);
//for inner border, we don't extend both endpoint
//rotate 270 degree to create a height vector that point 'inside' of the 'rectbox' shape.
//the box height= w
PixelFarm.VectorMath.Vector2 vdiff = vector.RotateInDegree(270).NewLength(w);
vxs.AddMoveTo(x0, y0);
vxs.AddLineTo(x1, y1);
vxs.AddLineTo(x1 + vdiff.x, y1 + vdiff.y);
vxs.AddLineTo(x0 + vdiff.x, y0 + vdiff.y);
vxs.AddCloseFigure();
}
static void CreateOuterBorder(VertexStore vxs, double x0, double y0, double x1, double y1, double w)
{
//create 'outer border box' of a line (x0,y0)=>(x1,y1)
PixelFarm.VectorMath.Vector2 vector = new PixelFarm.VectorMath.Vector2(x1 - x0, y1 - y0);
//for outer border, we need to extend both endpoints with len w
//this will create overlapped area outside the shape.
PixelFarm.VectorMath.Vector2 ext_vec = vector.NewLength(w);
x0 -= ext_vec.x;
y0 -= ext_vec.y;
x1 += ext_vec.x;
y1 += ext_vec.y;
//rotate 90 degree to create a height vector that point to 'outside' of the 'rectbox' shape.
//the box height= w
PixelFarm.VectorMath.Vector2 h_vec = vector.RotateInDegree(90).NewLength(w);
vxs.AddMoveTo(x0, y0);
vxs.AddLineTo(x0 + h_vec.x, y0 + h_vec.y);
vxs.AddLineTo(x1 + h_vec.x, y1 + h_vec.y);
vxs.AddLineTo(x1, y1);
vxs.AddCloseFigure();
}
void IVector2dProvider.GetCoord(int index, out float x, out float y)
{
PixelFarm.VectorMath.Vector2 vec = _vecSource[index];
x = (float)vec.x;
y = (float)vec.y;
}
void IVector2dProvider.GetCoord(int index, out double x, out double y)
{
PixelFarm.VectorMath.Vector2 vec = _vecSource[index];
x = vec.x;
y = vec.y;
}