private bool SetLine(ref Line savedLine, Line newLine)
{
/*
* Set the new given line to the corner's saved line.
* Return true if it was able to be set, false if not.
*
* When a corner is assigned a line, also set the line's corner
*/
bool lineSet = false;
if (savedLine == null)
{
savedLine = newLine;
newLine.AddCorner(this);
lineSet = true;
}
return(lineSet);
}