public override bool GetSign(Point3 pos)
{
var offsetPos = pos - _offset;
if (offsetPos.X < 0 || offsetPos.Y < 0 || offsetPos.Z < 0)
{
return(a.GetSign(pos));
}
return(a.GetSign(pos) || b.GetSign(pos - _offset));
}
public override bool GetSign(Point3 pos)
{
return(!b.GetSign(pos - offset) && a.GetSign(pos));
}
public static HermiteDataGrid CopyGrid(AbstractHermiteGrid grid)
{
var ret = new HermiteDataGrid();
Point3 storageSize = grid.Dimensions + new Point3(1, 1, 1);
ret.cells = new Array3D <Vertex>(storageSize);
for (int x = 0; x < storageSize.X; x++)
{
for (int y = 0; y < storageSize.Y; y++)
{
for (int z = 0; z < storageSize.Z; z++)
{
var p = new Point3(x, y, z);
ret.cells[p] = new Vertex()
{
Sign = grid.GetSign(p),
Material = grid.GetMaterial(p)
/*EdgeData = ret.dirs.Select(dir =>
* {
* var edgeId = grid.GetEdgeId(p, p + dir);
* return grid.HasEdgeData(p, edgeId) ? grid.getEdgeData(p, edgeId) : new Vector4();
* }).ToArray()*/
};
}
}
}
//ret.ForEachGridPoint(p =>
// {
// ret.cells[p] = new Vertex()
// {
// Sign = grid.GetSign(p),
// /*EdgeData = ret.dirs.Select(dir =>
// {
// var edgeId = grid.GetEdgeId(p, p + dir);
// return grid.HasEdgeData(p, edgeId) ? grid.getEdgeData(p, edgeId) : new Vector4();
// }).ToArray()*/
// };
// });
var dirs = ret.dirs;
var dirEdges = dirs.Select(i => ret.GetEdgeId(new Point3(), i)).ToArray();
ret.ForEachGridPoint(p =>
{
var gridPointP = ret.cells.GetFast(p.X, p.Y, p.Z);
gridPointP.EdgeData = new Vector4[3];
for (int i = 0; i < 3; i++)
{
var dir = dirs[i];
var edgeId = dirEdges[i];
Point3 endPoint = p + dir;
// Optimization: direclty read from already constructed data
if (!ret.cells.InArray(endPoint))
{
continue;
}
if (gridPointP.Sign == ret.cells.GetFast(endPoint.X, endPoint.Y, endPoint.Z).Sign)
{
continue;
}
if (!grid.HasEdgeData(p, edgeId))
{
// This can normally not happen, since we check if there is a sign difference by looking at the already evaluated density points.
// If this would be true there is some problem with the manual determining of the existence of an edge.
//throw new InvalidOperationException();
continue;
}
gridPointP.EdgeData[i] = grid.getEdgeData(p, edgeId);
}
/*val.EdgeData = ret.dirs.Select( dir =>
* {
*
* } ).ToArray();*/
ret.cells[p] = gridPointP;
});
return(ret);
}