public bool IsInclude(sg_Vector3 pt, out double pathlength)
{
pathlength = 0;
if (!_box.contain(pt))
{
return(false);
}
double l = 0;
for (int i = 0; i < _lines.Count; i++)
{
sg_line line = _lines[i];
if (line.IsInclude(pt, out l))
{
pathlength = pathlength + l;
return(true);
}
else
{
pathlength = pathlength + line.getLength();
}
}
return(false);
}
private sg_line findLine(double length, out double newlength)
{
newlength = 0;
if (length < 0)
{
newlength = length;
return(_lines[0]);
}
double l = getLength();
if (length > l)
{
sg_line line = _lines[_lines.Count - 1];
newlength = line.getLength() + length - l;
return(line);
}
double leng1 = 0.0;
double leng2 = 0.0;
for (int i = 0; i < _lines.Count; i++)
{
sg_line line = _lines[i];
leng2 = leng1 + line.getLength();
if (length < leng2)
{
newlength = length - leng1;
return(line);
}
leng1 = leng2;
}
newlength = 99999999;
return(null);
}
public void appendPoint(sg_Vector3 pt)
{
sg_line line = new sg_line(_lastpt, pt);
_lines.Add(line);
_lastpt = pt;
_box = _box + line.Box;
}
public bool IsAfterLastPt(sg_Vector3 pt, out double length)
{
length = 0;
if (_lines.Count == 0)
{
return(false);
}
sg_line line = _lines[_lines.Count - 1];
return(line.IsAfterPt2(pt, out length));
}
public bool IsBeforePt1(sg_Vector3 pt, out double length)
{
length = 0;
if (_lines.Count == 0)
{
return(false);
}
sg_line line = _lines[0];
return(line.IsBeforePt1(pt, out length));
}
public double getLength()
{
if (_l > 0)
{
return(_l);
}
_l = 0.0;
for (int i = 0; i < _lines.Count; i++)
{
sg_line line = _lines[i];
_l += line.getLength();
}
return(_l);
}
public sg_Vector3 getPoint(double length)
{
if (sg_math.isZero(length))
{
return(_lines[0].StartPoint);
}
double l = getLength();
if (sg_math.isEquel(length, l))
{
return(_lastpt);
}
double newlth = 0.0;
sg_line line = findLine(length, out newlth);
return(line.getPoint(newlth));
}
public double getLength(int index)
{
int maxindex = (int)_lines.Count - 1;
if (index <= 0)
{
return(0);
}
if (index > maxindex)
{
return(getLength());
}
double length = 0.0;
for (int i = 1; i <= index; i++)
{
sg_line line = _lines[i - 1];
length += line.getLength();
}
return(length);
}