private void Update()
{
if (alignmentManager == null)
{
FindAlignmentManager();
}
if (triangulator != null && isVisible)
{
// Find the three closest SpacePins this frame
Interpolant interpolantThisFrame = triangulator.Find(GetLockedHeadPosition());
if (interpolantThisFrame != null)
{
currentInterpolant = interpolantThisFrame;
// Only generate new mesh if SpacePins are different from the currently generated ones
if (!Enumerable.SequenceEqual(interpolantThisFrame.idx, lastGeneratedTriangleIDs) || triangleIsDirty || (AnyWeightInTriangleZero() && currentBoundaryVertexIDx == -1) || (!AnyWeightInTriangleZero() && currentBoundaryVertexIDx != -1))
{
GenerateMeshes();
lastGeneratedTriangleIDs = interpolantThisFrame.idx;
}
// if SpacePins are same update the vertices in case the current SpacePins moved somehow,
// or there is a boundary vertex that needs to be snapped to the headset position every frame.
else
{
UpdateVertexPositions();
}
UpdateMaterialProperties();
UpdatePercentageTexts();
}
}
}
public void TriangulatorTestObtuseTriangle()
{
ITriangulator triangulator = CreateDefaultTriangulator();
// Use the Assert class to test conditions
Vector3[] vertices = { new Vector3(0, 0, 0), new Vector3(2, 0, 0), new Vector3(1, 0, 0.04f) };
triangulator.Add(vertices);
Interpolant interp = triangulator.Find(new Vector3(0, 0, 0));
CheckWeight(interp, 0, 1);
CheckWeightsZero(interp, new int[] { 1, 2 });
interp = triangulator.Find(new Vector3(2.0f, 0, 0));
CheckWeight(interp, 1, 1);
CheckWeightsZero(interp, new int[] { 0, 2 });
/// This one is outside the triangle, but should interpolate to the obtuse vertex exactly.
interp = triangulator.Find(new Vector3(1.0f, 0, 02f));
CheckWeight(interp, 2, 1);
CheckWeightsZero(interp, new int[] { 0, 1 });
interp = triangulator.Find(new Vector3(1.0f, 0, 0.0f));
//CheckWeight(interp, 2, 1);
//CheckWeightsZero(interp, new int[] { 0, 1 });
}
private static void CheckWeightsZero(Interpolant interp, int[] idx)
{
for (int i = 0; i < idx.Length; ++i)
{
CheckWeightZero(interp, idx[i]);
}
}
private static void CheckWeightZero(Interpolant interp, int idx)
{
for (int i = 0; i < interp.idx.Length; ++i)
{
if (interp.idx[i] == idx)
{
Assert.AreEqual(interp.weights[i], 0);
}
}
}
private static void CheckWeight(Interpolant interp, int idx, float weight)
{
int found = 0;
for (int i = 0; i < interp.idx.Length; ++i)
{
if (interp.idx[i] == idx && interp.weights[i] > 0)
{
Assert.IsTrue(FloatCompare(interp.weights[i], weight));
++found;
}
}
// If the input weight is non-zero, there should be exactly one non-zero weight occurrence of it.
Assert.IsTrue((weight == 0 && found == 0) || (weight > 0 && found == 1));
}
/// <summary>
/// This is the method that actually does the work.
/// </summary>
/// <param name="DA">The DA object is used to retrieve from inputs and store in outputs.</param>
protected override void SolveInstance(IGH_DataAccess DA)
{
var X2D = new double[2][] {
new double[2] {
0, 1
},
new double[2] {
0, 1
}
};
X2D = new double[2][] {
new double[3] {
0, 0.25, 1
},
new double[3] {
0, 0.5, 1
}
};
//var Z2D = new double[9] { 1, 1, 1, 1, 1, 1, 1, 1, 1 };
var Z2D = new double[9] {
1, 2, 3, 4, 2, -3, 1, 2, 3
};
//var Z2D = new double[4] { 1, 2, 3, 4 };
//Z2D = new double[6] { 1, 2, 3, 1, 2, 3 };
Z = Z2D;
grid = new Grid(X2D);
gp = new IvyCore.Parametric.Point(grid);
Zpts = this.ConstructFieldView(grid, Z);
var p = new Point3d();
DA.GetData(0, ref p);
int n = Math.Min(gp.Dim, 3);
for (int i = 0; i < n; i++)
{
gp[i] = p[i];
}
int cellIndex = gp.CellIndex();
var cell = gp.Grid.Cells[cellIndex];
Interpolant interp = cell.GetInterpolant(gp);
double zlerp = interp.Lerp(Z);
//for (int i = 0; i < LERP.Length; i++)
//{
// int index = cell.VerticesIndex[i];
// zlerp += LERP[i] * Z[index];
//}
var cellPts = new Point3d[5];
double[] node;
node = grid.Nodes[cell.VerticesIndex[0]].Coord;
cellPts[0] = new Point3d(node[0], node[1], 0);
node = grid.Nodes[cell.VerticesIndex[1]].Coord;
cellPts[1] = new Point3d(node[0], node[1], 0);
node = grid.Nodes[cell.VerticesIndex[3]].Coord;
cellPts[2] = new Point3d(node[0], node[1], 0);
node = grid.Nodes[cell.VerticesIndex[2]].Coord;
cellPts[3] = new Point3d(node[0], node[1], 0);
cellPts[4] = cellPts[0];
var contour = new PolylineCurve(cellPts);
p.Z = zlerp;
DA.SetData(0, p);
DA.SetDataList(1, Zpts);
DA.SetData(2, contour);
DA.SetData(3, grid.Info());
}