public override bool CreateDemFromParent()
{
ToastTile parent = Parent as ToastTile;
if (parent == null)
{
return(false);
}
int offsetX = ((X % 2) == 1 ? 8 : 0);
int offsetY = ((Y % 2) == 0 ? 8 : 0);
demArray = new double[17 * 17];
// Interpolate accross
for (int y = 0; y < 17; y += 2)
{
bool copy = true;
for (int x = 0; x < 17; x++)
{
if (copy)
{
demArray[(16 - y) * 17 + x] = parent.GetDemSample((x / 2) + offsetX, (y / 2) + offsetY);
}
else
{
demArray[(16 - y) * 17 + x] =
(
(
parent.GetDemSample((x / 2) + offsetX, (y / 2) + offsetY) +
parent.GetDemSample(((x / 2) + offsetX) + 1, (y / 2) + offsetY)
) / 2);
}
copy = !copy;
}
}
// Interpolate down
for (int y = 1; y < 17; y += 2)
{
for (int x = 0; x < 17; x++)
{
demArray[(16 - y) * 17 + x] =
(
(
GetDemSample(x, y - 1) +
GetDemSample(x, y + 1)
) / 2);
}
}
// Convert the dem array back to the arranged DEM list thu slash/backslash mapping tables
DemData = new double[demSize];
for (int i = 0; i < demSize; i++)
{
if (backslash)
{
DemData[i] = demArray[backslashXIndex[i] + backslashYIndex[i] * 17];
}
else
{
DemData[i] = demArray[slashXIndex[i] + slashYIndex[i] * 17];
}
demAverage += DemData[i];
}
// WriteDemIndexArrays();
// Get Average value for new DemData table
demAverage /= DemData.Length;
DemReady = true;
return(true);
}
private void InitializeGrids()
{
vertexList = BufferPool11.GetPositionTextureList();
for (int i = 0; i < 4; i++)
{
if (childTriangleList[i] != null)
{
childTriangleList[i].Clear();
}
else
{
childTriangleList[i] = BufferPool11.GetTriagleList();
}
}
bounds = new PositionTexture[3, 3];
if (level > 0)
{
ToastTile parent = Parent as ToastTile;
if (parent == null)
{
return;
}
int xIndex = x % 2;
int yIndex = y % 2;
if (level > 1)
{
backslash = parent.backslash;
}
else
{
backslash = xIndex == 1 ^ yIndex == 1;
}
bounds[0, 0] = parent.bounds[xIndex, yIndex];
bounds[1, 0] = Midpoint(parent.bounds[xIndex, yIndex], parent.bounds[xIndex + 1, yIndex]);
bounds[2, 0] = parent.bounds[xIndex + 1, yIndex];
bounds[0, 1] = Midpoint(parent.bounds[xIndex, yIndex], parent.bounds[xIndex, yIndex + 1]);
if (backslash)
{
bounds[1, 1] = Midpoint(parent.bounds[xIndex, yIndex], parent.bounds[xIndex + 1, yIndex + 1]);
}
else
{
bounds[1, 1] = Midpoint(parent.bounds[xIndex + 1, yIndex], parent.bounds[xIndex, yIndex + 1]);
}
bounds[2, 1] = Midpoint(parent.bounds[xIndex + 1, yIndex], parent.bounds[xIndex + 1, yIndex + 1]);
bounds[0, 2] = parent.bounds[xIndex, yIndex + 1];
bounds[1, 2] = Midpoint(parent.bounds[xIndex, yIndex + 1], parent.bounds[xIndex + 1, yIndex + 1]);
bounds[2, 2] = parent.bounds[xIndex + 1, yIndex + 1];
if (Properties.Settings.Default.ShowElevationModel)
{
bounds[0, 0].Tu = 0;
bounds[0, 0].Tv = 0;
bounds[1, 0].Tu = .5f;
bounds[1, 0].Tv = 0;
bounds[2, 0].Tu = 1;
bounds[2, 0].Tv = 0;
bounds[0, 1].Tu = 0;
bounds[0, 1].Tv = .5f;
bounds[1, 1].Tu = .5f;
bounds[1, 1].Tv = .5f;
bounds[2, 1].Tu = 1;
bounds[2, 1].Tv = .5f;
bounds[0, 2].Tu = 0;
bounds[0, 2].Tv = 1;
bounds[1, 2].Tu = .5f;
bounds[1, 2].Tv = 1;
bounds[2, 2].Tu = 1;
bounds[2, 2].Tv = 1;
}
else
{
bounds[0, 0].Tu = 0 + .002f;
bounds[0, 0].Tv = 0 + .002f;
bounds[1, 0].Tu = .5f + .002f;
bounds[1, 0].Tv = 0 + .002f;
bounds[2, 0].Tu = 1 + .002f;
bounds[2, 0].Tv = 0 + .002f;
bounds[0, 1].Tu = 0 + .002f;
bounds[0, 1].Tv = .5f + .002f;
bounds[1, 1].Tu = .5f + .002f;
bounds[1, 1].Tv = .5f + .002f;
bounds[2, 1].Tu = 1 + .002f;
bounds[2, 1].Tv = .5f + .002f;
bounds[0, 2].Tu = 0 + .002f;
bounds[0, 2].Tv = 1 + .002f;
bounds[1, 2].Tu = .5f + .002f;
bounds[1, 2].Tv = 1 + .002f;
bounds[2, 2].Tu = 1 + .002f;
bounds[2, 2].Tv = 1 + .002f;
}
vertexList.Add(bounds[0, 0]);
vertexList.Add(bounds[1, 0]);
vertexList.Add(bounds[2, 0]);
vertexList.Add(bounds[0, 1]);
vertexList.Add(bounds[1, 1]);
vertexList.Add(bounds[2, 1]);
vertexList.Add(bounds[0, 2]);
vertexList.Add(bounds[1, 2]);
vertexList.Add(bounds[2, 2]);
if (backslash)
{
childTriangleList[0].Add(new Triangle(4, 1, 0));
childTriangleList[0].Add(new Triangle(3, 4, 0));
childTriangleList[1].Add(new Triangle(5, 2, 1));
childTriangleList[1].Add(new Triangle(4, 5, 1));
childTriangleList[2].Add(new Triangle(7, 4, 3));
childTriangleList[2].Add(new Triangle(6, 7, 3));
childTriangleList[3].Add(new Triangle(8, 5, 4));
childTriangleList[3].Add(new Triangle(7, 8, 4));
}
else
{
childTriangleList[0].Add(new Triangle(3, 1, 0));
childTriangleList[0].Add(new Triangle(4, 1, 3));
childTriangleList[1].Add(new Triangle(4, 2, 1));
childTriangleList[1].Add(new Triangle(5, 2, 4));
childTriangleList[2].Add(new Triangle(6, 4, 3));
childTriangleList[2].Add(new Triangle(7, 4, 6));
childTriangleList[3].Add(new Triangle(7, 5, 4));
childTriangleList[3].Add(new Triangle(8, 5, 7));
}
}
else
{
if (Properties.Settings.Default.ShowElevationModel)
{
bounds[0, 0] = new PositionTexture(0, -1, 0, 0, 0);
bounds[1, 0] = new PositionTexture(0, 0, -1, .5f, 0);
bounds[2, 0] = new PositionTexture(0, -1, 0, 1, 0);
bounds[0, 1] = new PositionTexture(1, 0, 0, 0, .5f);
bounds[1, 1] = new PositionTexture(0, 1, 0, .5f, .5f);
bounds[2, 1] = new PositionTexture(-1, 0, 0, 1, .5f);
bounds[0, 2] = new PositionTexture(0, -1, 0, 0, 1);
bounds[1, 2] = new PositionTexture(0, 0, 1, .5f, 1);
bounds[2, 2] = new PositionTexture(0, -1, 0, 1, 1);
}
else
{
bounds[0, 0] = new PositionTexture(0, -1, 0, 0 + .002f, 0 + .002f);
bounds[1, 0] = new PositionTexture(0, 0, -1, .5f + .002f, 0 + .002f);
bounds[2, 0] = new PositionTexture(0, -1, 0, 1 + .002f, 0 + .002f);
bounds[0, 1] = new PositionTexture(1, 0, 0, 0 + .002f, .5f + .002f);
bounds[1, 1] = new PositionTexture(0, 1, 0, .5f + .002f, .5f + .002f);
bounds[2, 1] = new PositionTexture(-1, 0, 0, 1 + .002f, .5f + .002f);
bounds[0, 2] = new PositionTexture(0, -1, 0, 0 + .002f, 1 + .002f);
bounds[1, 2] = new PositionTexture(0, 0, 1, .5f + .002f, 1 + .002f);
bounds[2, 2] = new PositionTexture(0, -1, 0, 1 + .002f, 1 + .002f);
}
vertexList.Add(bounds[0, 0]);
vertexList.Add(bounds[1, 0]);
vertexList.Add(bounds[2, 0]);
vertexList.Add(bounds[0, 1]);
vertexList.Add(bounds[1, 1]);
vertexList.Add(bounds[2, 1]);
vertexList.Add(bounds[0, 2]);
vertexList.Add(bounds[1, 2]);
vertexList.Add(bounds[2, 2]);
childTriangleList[0].Add(new Triangle(3, 1, 0));
childTriangleList[0].Add(new Triangle(4, 1, 3));
childTriangleList[1].Add(new Triangle(5, 2, 1));
childTriangleList[1].Add(new Triangle(4, 5, 1));
childTriangleList[2].Add(new Triangle(7, 4, 3));
childTriangleList[2].Add(new Triangle(6, 7, 3));
childTriangleList[3].Add(new Triangle(7, 5, 4));
childTriangleList[3].Add(new Triangle(8, 5, 7));
// Setup default matrix of points.
}
VertexCount = (int)Math.Pow(4, subDivisionLevel) * 2 + 1;
}
