public bool IsLineJoinGeoXYRectWithoutPointInRect(GeoXYPoint pt1, GeoXYPoint pt2)
{
GeoVectorMultiple geoVectMulti = new GeoVectorMultiple();
geoVectMulti.L1AndL2P1 = this.VectorMultiple(pt1, pt2, this[0]);
geoVectMulti.L1AndL2P2 = this.VectorMultiple(pt1, pt2, this[1]);
geoVectMulti.L2AndL1P1 = this.VectorMultiple(this[0], this[1], pt1);
geoVectMulti.L2AndL1P2 = this.VectorMultiple(this[0], this[1], pt2);
if (this.IsIntersectLine(geoVectMulti))
{
return true;
}
geoVectMulti.L1AndL2P1 = this.VectorMultiple(pt1, pt2, this[1]);
geoVectMulti.L1AndL2P2 = this.VectorMultiple(pt1, pt2, this[2]);
geoVectMulti.L2AndL1P1 = this.VectorMultiple(this[1], this[2], pt1);
geoVectMulti.L2AndL1P2 = this.VectorMultiple(this[1], this[2], pt2);
if (this.IsIntersectLine(geoVectMulti))
{
return true;
}
geoVectMulti.L1AndL2P1 = this.VectorMultiple(pt1, pt2, this[2]);
geoVectMulti.L1AndL2P2 = this.VectorMultiple(pt1, pt2, this[3]);
geoVectMulti.L2AndL1P1 = this.VectorMultiple(this[2], this[3], pt1);
geoVectMulti.L2AndL1P2 = this.VectorMultiple(this[2], this[3], pt2);
if (this.IsIntersectLine(geoVectMulti))
{
return true;
}
geoVectMulti.L1AndL2P1 = this.VectorMultiple(pt1, pt2, this[3]);
geoVectMulti.L1AndL2P2 = this.VectorMultiple(pt1, pt2, this[0]);
geoVectMulti.L2AndL1P1 = this.VectorMultiple(this[3], this[0], pt1);
geoVectMulti.L2AndL1P2 = this.VectorMultiple(this[3], this[0], pt2);
return this.IsIntersectLine(geoVectMulti);
}
public bool IsIntersectLine(GeoVectorMultiple geoVectMulti)
{
return (((geoVectMulti.L1AndL2P1 * geoVectMulti.L1AndL2P2) < 0.0) && ((geoVectMulti.L2AndL1P1 * geoVectMulti.L2AndL1P2) < 0.0));
}