private void DrawSubdivision(ref Matrix4 mvp, Vector3 min, Vector3 size, List <KCL.OctreeNode> modelOctrees, int subdiv)
{
var BoxSize = size / 2f;
var QuarterSize = BoxSize / 2f;
int index = 0;
for (int z = 0; z < 2; z++)
{
for (int y = 0; y < 2; y++)
{
for (int x = 0; x < 2; x++)
{
var Boxmin = min + BoxSize * new Vector3(x, y, z);
var pos = BoxSize * new Vector3(x, y, z);
if (modelOctrees[index].IsSelected)
{
DrawableBoundingBox.DrawBoundingBox(mvp, QuarterSize, Boxmin + QuarterSize, System.Drawing.Color.Red);
}
else
{
DrawableBoundingBox.DrawBoundingBox(mvp, QuarterSize, Boxmin + QuarterSize, System.Drawing.Color.Green);
}
if (modelOctrees[index].Nodes.Count > 0)
{
DrawSubdivision(ref mvp, Boxmin, BoxSize, modelOctrees[index].Children, subdiv++);
}
index++;
}
}
}
}
private void DrawBoundingBoxes()
{
var boundings = GetSelectionBox();
DrawableBoundingBox.DrawBoundingBox(
new Vector3(boundings.minX, boundings.minY, boundings.minZ),
new Vector3(boundings.maxX, boundings.maxY, boundings.maxZ),
new Vector3(0)
);
return;
}
/// <summary>
/// Forced updated of the boundingbox scanning all the
/// vertices of the cell for their height position
/// </summary>
private void UpdateBoundingBox()
{
float minH = float.MaxValue;
float maxH = float.MinValue;
float height = 0f;
for (int y = 0; y < divisions.Y; y++)
{
for (int x = 0; x < divisions.X; x++)
{
height = vertices[x + y * divisions.X].Position.Y;
if(height < minH)
minH = height;
if(height > maxH)
maxH = height;
}
}
Vector3 Min = new Vector3(position.X, minH, position.Z);
Vector3 Max = new Vector3(position.X + divisions.X * cellsize.X - cellsize.X, maxH, position.Z + divisions.Y * cellsize.Y - cellsize.Y);
center.Y = Min.Y + (Max.Y - Min.Y) / 2f;
boundingBox = new BoundingBox(Min, Max);
boundingBoxWire = new DrawableBoundingBox(Vector3.Zero, Min, Max);
minHeight = minH;
maxHeight = maxH;
}
private void UpdateBoundingBox(float minHeight, float maxHeight)
{
if (minHeight < this.minHeight)
this.minHeight = minHeight;
if (maxHeight > this.maxHeight)
this.maxHeight = maxHeight;
Vector3 Min = new Vector3(position.X, this.minHeight, position.Z);
Vector3 Max = new Vector3(position.X + divisions.X * cellsize.X - cellsize.X, this.maxHeight, position.Z + divisions.Y * cellsize.Y - cellsize.Y);
center.Y = Min.Y + (Max.Y - Min.Y) / 2f;
boundingBox = new BoundingBox(Min, Max);
boundingBoxWire = new DrawableBoundingBox(Vector3.Zero, Min, Max);
}
