public g3Line vertical(g3RowVec point) // must be moved to g2Line, only for testing, all z-Values must be 0 for testing
{
g3Line ret = new g3Line(this);
ret.ePoint.x = point.x + dir.y;
ret.ePoint.y = point.y - dir.x;
ret.init(point, ret.ePoint);
return(ret);
}
public g3Line parallel(double dist) // must be moved to g2Line, only for testing, all z-Values must be 0 for testing
{
g3Line ret = new g3Line(this);
ret.sPoint.y = sPoint.y + Math.Sqrt(dir.x * dir.x + dir.y * dir.y) * dist / dir.x;
ret.ePoint.x = ret.sPoint.x + dir.x;
ret.ePoint.y = ret.sPoint.y + dir.y;
ret.ePoint.z = ret.sPoint.z + dir.z;
ret.pnt.x = ret.sPoint.x;
ret.pnt.y = ret.sPoint.y;
ret.pnt.z = ret.sPoint.z;
return(ret);
}
} // must be moved to g2Line, only for testing, all z-Values must be 0 for testing
private static void selfTest()
{
selfTested = true;
g3Line g = new g3Line(new g3RowVec(0, 0, 0), new g3RowVec(1, 1, 0));
ass(g.At((Math.Sqrt(2))).x == 1);
ass(g.At((Math.Sqrt(2))).y == 1);
g3Line h = new g3Line(new g3RowVec(0, 2, 0), new g3RowVec(2, 0, 0));
g3ColVec s = h.InterSect(g);
ass(s[1, 1, 1] == 1);
ass(s[1, 2, 1] == 1);
ass(s[1, 3, 1] == 0);
ass(h.yAt(2) == 0);
ass(h.xAt(1) == 1);
ass(h.parallel(Math.Sqrt(2) / 2).yAt(3) == 0);
}
public g3Line(g3Line cloneFrom)
{
init(new g3RowVec(cloneFrom.sPoint), new g3RowVec(cloneFrom.ePoint));
}
public g3ColVec InterSect(g3Line second)
{
return(second.At((dir[1, 2, 1] * pnt[1, 1, 1] - dir[1, 1, 1] * pnt[1, 2, 1] + dir[1, 1, 1] * second.pnt[1, 2, 1] - dir[1, 2, 1] * second.pnt[1, 1, 1]) / (dir[1, 2, 1] * second.dir[1, 1, 1] - dir[1, 1, 1] * second.dir[1, 2, 1])));
}
