public bool IsDiff(LineAAVertex val)
{
//*** NEED 64 bits long
long dx = val.x - x;
long dy = val.y - y;
if ((dx + dy) == 0)
{
return(false);
}
return((len = AggMath.uround(Math.Sqrt(dx * dx + dy * dy))) > SIGDIFF);
}
public void AddVertex(LineAAVertex val)
{
int count = _list.Count;
if (count > 1)
{
LineAAVertex[] innerArray = _list.UnsafeInternalArray;
if (!innerArray[count - 2].IsDiff(innerArray[count - 1]))
{
_list.RemoveLast();
}
}
_list.Append(val);
}
public void AddVertex(LineAAVertex val)
{
int count = list.Count;
if (count > 1)
{
var innerArray = list.Array;
if (!innerArray[count - 2].IsDiff(innerArray[count - 1]))
{
list.RemoveLast();
}
}
list.AddVertex(val);
}
public void Close(bool closed)
{
//----------------------
//iter backward
int count = _list.Count;
var innerArray = _list.UnsafeInternalArray;
while (count > 1)
{
if (innerArray[count - 2].IsDiff(innerArray[count - 1]))
{
break;
}
else
{
LineAAVertex t = _list[count - 1];
_list.RemoveLast();
ModifyLast(t);
count--;
}
}
if (closed)
{
//if close figure
count = _list.Count;
var first = innerArray[0];
while (count > 1)
{
if (innerArray[count - 1].IsDiff(first))
{
break;
}
count--;
_list.RemoveLast();
}
}
}
//
public void ModifyLast(LineAAVertex val)
{
_list.RemoveLast();
AddVertex(val);
}
