/// <summary>
/// Creates a new <see cref="TerrainQuad"/>
/// </summary>
/// <param name="owner">The <see cref="TerrainNode"/> to which the terrain quadtree belongs.</param>
/// <param name="parent">The <see cref="TerrainQuad"/> parent of this quad.</param>
/// <param name="tx">The logical x coordinate of this quad.</param>
/// <param name="ty">The logical y coordinate of this quad.</param>
/// <param name="ox">The physical x coordinate of the lower left corner of this quad.</param>
/// <param name="oy">The physical y coordinate of the lower left corner of this quad.</param>
/// <param name="length">The physical size of this quad.</param>
/// <param name="zmin">The minimum terrain elevation inside this quad.</param>
/// <param name="zmax">The maximum terrain elevation inside this quad.</param>
public TerrainQuad(TerrainNode owner, TerrainQuad parent, int tx, int ty, double ox, double oy, double length, float zmin, float zmax)
{
GUID = Guid.NewGuid();
Owner = owner;
Parent = parent;
Level = (Parent == null) ? 0 : Parent.Level + 1;
Tx = tx;
Ty = ty;
Ox = ox;
Oy = oy;
ZMax = zmax;
ZMin = zmin;
Length = length;
LengthHalf = length / 2.0;
LocalBox = new Box3d(Ox, Ox + Length, Oy, Oy + Length, ZMin, ZMax);
DeformedOffset = new Vector4((float)Ox, (float)Oy, (float)Length, Level);
DeformedBox = new Vector3d[4];
DeformedBox[0] = Owner.Deformation.LocalToDeformed(LocalBox.Min.x, LocalBox.Min.y, LocalBox.Min.z);
DeformedBox[1] = Owner.Deformation.LocalToDeformed(LocalBox.Max.x, LocalBox.Min.y, LocalBox.Min.z);
DeformedBox[2] = Owner.Deformation.LocalToDeformed(LocalBox.Max.x, LocalBox.Max.y, LocalBox.Min.z);
DeformedBox[3] = Owner.Deformation.LocalToDeformed(LocalBox.Min.x, LocalBox.Max.y, LocalBox.Min.z);
Order = new byte[4];
Order[0] = 0;
Order[1] = 1;
Order[2] = 2;
Order[3] = 3;
CalculateMatrices(ox, oy, length, owner.ParentBody.Size);
}
/// <summary>
/// Creates a new <see cref="TerrainQuad"/>
/// </summary>
/// <param name="owner">The <see cref="TerrainNode"/> to which the terrain quadtree belongs.</param>
/// <param name="parent">The <see cref="TerrainQuad"/> parent of this quad.</param>
/// <param name="tx">The logical x coordinate of this quad.</param>
/// <param name="ty">The logical y coordinate of this quad.</param>
/// <param name="ox">The physical x coordinate of the lower left corner of this quad.</param>
/// <param name="oy">The physical y coordinate of the lower left corner of this quad.</param>
/// <param name="length">The physical size of this quad.</param>
/// <param name="zmin">The minimum terrain elevation inside this quad.</param>
/// <param name="zmax">The maximum terrain elevation inside this quad.</param>
public TerrainQuad(TerrainNode owner, TerrainQuad parent, int tx, int ty, double ox, double oy, double length, float zmin, float zmax)
{
Owner = owner;
Parent = parent;
Level = (Parent == null) ? 0 : Parent.Level + 1;
Tx = tx;
Ty = ty;
Ox = ox;
Oy = oy;
ZMax = zmax;
ZMin = zmin;
Length = length;
LocalBox = new Box3d(Ox, Ox + Length, Oy, Oy + Length, ZMin, ZMax);
}
/// <summary>
/// Creates a new <see cref="TerrainQuad"/>
/// </summary>
/// <param name="owner">The <see cref="TerrainNode"/> to which the terrain quadtree belongs.</param>
/// <param name="parent">The <see cref="TerrainQuad"/> parent of this quad.</param>
/// <param name="tx">The logical x coordinate of this quad.</param>
/// <param name="ty">The logical y coordinate of this quad.</param>
/// <param name="ox">The physical x coordinate of the lower left corner of this quad.</param>
/// <param name="oy">The physical y coordinate of the lower left corner of this quad.</param>
/// <param name="length">The physical size of this quad.</param>
/// <param name="zmin">The minimum terrain elevation inside this quad.</param>
/// <param name="zmax">The maximum terrain elevation inside this quad.</param>
public TerrainQuad(TerrainNode owner, TerrainQuad parent, int tx, int ty, double ox, double oy, double length, float zmin, float zmax)
{
Owner = owner;
Parent = parent;
Level = (Parent == null) ? 0 : Parent.Level + 1;
Tx = tx;
Ty = ty;
Ox = ox;
Oy = oy;
ZMax = zmax;
ZMin = zmin;
Length = length;
LengthHalf = length / 2.0;
LocalBox = new Box3d(Ox, Ox + Length, Oy, Oy + Length, ZMin, ZMax);
// TODO : Hm. Maybe too heavy for a ctor? Threading? Hueading?
CalculateMatrices(ox, oy, length, owner.ParentBody.Size);
}