internal Line(DObject tag, MsaglPoint start, MsaglPoint end, double lw)
: base(tag)
{
lineWidth = lw;
MsaglPoint dir = end - start;
if (lineWidth < 0)
{
lineWidth = 1;
}
double len = dir.Length;
if (len > ApproximateComparer.IntersectionEpsilon)
{
dir /= (len / (lineWidth / 2));
dir = dir.Rotate(Math.PI / 2);
}
else
{
dir.X = 0;
dir.Y = 0;
}
this.bBox = new Rectangle(start + dir);
this.bBox.Add(start - dir);
this.bBox.Add(end + dir);
this.bBox.Add(end - dir);
this.start = start;
this.end = end;
if (this.bBox.LeftTop.X == this.bBox.RightBottom.X)
{
bBox.LeftTop = bBox.LeftTop + new MsaglPoint(-0.05f, 0);
bBox.RightBottom = bBox.RightBottom + new MsaglPoint(0.05f, 0);
}
if (this.bBox.LeftTop.Y == this.bBox.RightBottom.Y)
{
bBox.LeftTop = bBox.LeftTop + new MsaglPoint(0, -0.05f);
bBox.RightBottom = bBox.RightBottom + new MsaglPoint(0, 0.05f);
}
}
