private bool isSquare(List <IntPoint> edgePoints, out List <IntPoint> corners)
{
if (shapeChecker.IsQuadrilateral(edgePoints, out corners))
{
// edges same length?
IntPoint v1 = corners[0] - corners[1];
IntPoint v2 = corners[1] - corners[2];
float t1 = v1.EuclideanNorm() - v2.EuclideanNorm();
if (t1 < 0)
{
t1 = -t1;
}
if (t1 > 3)
{
return(false);
}
IntPoint v3 = corners[2] - corners[3];
float t2 = v2.EuclideanNorm() - v3.EuclideanNorm();
if (t2 < 0)
{
t2 = -t2;
}
if (t2 > 3)
{
return(false);
}
IntPoint v4 = corners[3] - corners[0];
float t3 = v3.EuclideanNorm() - v4.EuclideanNorm();
if (t3 < 0)
{
t3 = -t3;
}
if (t3 > 3)
{
return(false);
}
return(true);
}
else
{
return(false);
}
}
public void EuclideanNormTest( int x, int y, double expectedNorm )
{
IntPoint point = new IntPoint( x, y );
Assert.AreEqual( point.EuclideanNorm( ), expectedNorm );
}
public void EuclideanNormTest(int x, int y, double expectedNorm)
{
var point = new IntPoint(x, y);
Assert.AreEqual(point.EuclideanNorm(), expectedNorm);
}
