private NearBoundaryElement2DFirstOrder NearGetElementA(Point3D start, bool isInverted)
{
var vectorNearElementA = new Point3D(hRightLeft, 0, 0);
if (isInverted)
{
vectorNearElementA *= -1;
}
var firstPoint3D = start + new Point3D(0, 0, -h3);
var secondPoint3D = start + new Point3D(0, h2, -h3);
var thirdPoint3D = start + new Point3D(0, h2, 0);
var fourthPoint3D = start + vectorNearElementA;
var fifthPoint3D = firstPoint3D + vectorNearElementA;
var sixthPoint3D = secondPoint3D + vectorNearElementA;
var seventhPoint3D = thirdPoint3D + vectorNearElementA;
var center = start + new Point3D(0, h2 / 2, -h3 / 2);
var normal = new Point3D(1, 0, 0);
if (isInverted)
{
normal *= -1;
}
var element = new NearBoundaryElement2DFirstOrder(
start,
firstPoint3D,
secondPoint3D,
thirdPoint3D,
fourthPoint3D,
fifthPoint3D,
sixthPoint3D,
seventhPoint3D,
center,
normal);
return(element);
}
private NearBoundaryElement2DFirstOrder NearGetElementC(Point3D start, bool isInverted)
{
var vectorNearElementC = new Point3D(0, 0, hFrontBack);
if (isInverted)
{
vectorNearElementC *= -1;
}
var firstPoint3D = start + new Point3D(h1, 0, 0);
var secondPoint3D = start + new Point3D(h1, h2, 0);
var thirdPoint3D = start + new Point3D(0, h2, 0);
var fourthPoint3D = start + vectorNearElementC;
var fifthPoint3D = firstPoint3D + vectorNearElementC;
var sixthPoint3D = secondPoint3D + vectorNearElementC;
var seventhPoint3D = thirdPoint3D + vectorNearElementC;
var center = start + new Point3D(h1 / 2, h2 / 2, 0);
var normal = new Point3D(0, 0, 1);
if (isInverted)
{
normal *= -1;
}
var element = new NearBoundaryElement2DFirstOrder(
start,
firstPoint3D,
secondPoint3D,
thirdPoint3D,
fourthPoint3D,
fifthPoint3D,
sixthPoint3D,
seventhPoint3D,
center,
normal);
return(element);
}