public void TestAreaOfTriangle2()
{
// http://www.mathopenref.com/coordtrianglearea.html
var A = new Point3D(-6, 20);
var B = new Point3D(11, 39);
var C = new Point3D(15, -6);
var area = Transformation.AreaOfTriangle(A, B, C);
var area2 = Transformation.AreaOfTriangleFast(A, B, C);
Assert.AreEqual(420.5f, area, 0.00000001);
Assert.AreEqual(420.5f, area2, 0.00000001);
}
public void TestAreaOfTriangle3()
{
// http://keisan.casio.com/has10/SpecExec.cgi?id=system/2006/1223520411
var A = new Point3D(-2, 3);
var B = new Point3D(-3, -1);
var C = new Point3D(3, -2);
var area = Transformation.AreaOfTriangle(A, B, C);
var area2 = Transformation.AreaOfTriangleFast(A, B, C);
Assert.AreEqual(12.5f, area, 0.00000001);
Assert.AreEqual(12.5f, area2, 0.00000001);
}
public void TestAreaOfTriangle1()
{
// http://www.mathopenref.com/coordtrianglearea.html
var A = new Point3D(15, 15);
var B = new Point3D(23, 30);
var C = new Point3D(50, 25);
var area = Transformation.AreaOfTriangle(A, B, C);
var area2 = Transformation.AreaOfTriangleFast(A, B, C);
Assert.AreEqual(222.5f, area, 0.00000001);
Assert.AreEqual(222.5f, area2, 0.00000001);
}
