public void AddGrid(BoxFaces plane, int columns, int rows, float width, float height)
{
// checks
if (columns < 2 || rows < 2)
{
throw new ArgumentNullException("columns or rows too small");
}
if (width <= 0 || height <= 0)
{
throw new ArgumentNullException("width or height too small");
}
// step
var stepy = height / (rows - 1);
var stepx = width / (columns - 1);
float minx = 0, miny = 0;
float maxx = width;
float maxy = height;
for (int y = 0; y < rows; y++)
{
this.AddLine(new Vector3(minx, stepy * y, 0), new Vector3(maxx, stepy * y, 0));
}
for (int x = 0; x < columns; x++)
{
this.AddLine(new Vector3(stepx * x, miny, 0), new Vector3(stepx * x, maxy, 0));
}
}
/// <summary>
///
/// </summary>
/// <param name="plane"></param>
/// <param name="columns"></param>
/// <param name="rows"></param>
/// <param name="width"></param>
/// <param name="height"></param>
public void AddGrid(BoxFaces plane, int columns, int rows, float width, float height)
{
// checks
if (columns < 2 || rows < 2)
{
throw new ArgumentNullException("columns or rows too small");
}
if (width <= 0 || height <= 0)
{
throw new ArgumentNullException("width or height too small");
}
// step
var stepy = height / (rows - 1);
var stepx = width / (columns - 1);
float minx = 0, miny = 0;
float maxx = width;
float maxy = height;
for (int y = 0; y < rows; y++)
{
this.AddLine(new Vector3(minx, stepy * y, 0), new Vector3(maxx, stepy * y, 0));
}
for (int x = 0; x < columns; x++)
{
this.AddLine(new Vector3(stepx * x, miny, 0), new Vector3(stepx * x, maxy, 0));
}
}
public Geometry3D BuildBox(Vector3 center, double xlength, double ylength, double zlength)
{
var geo = new Geometry3D();
BoxFaces faces = BoxFaces.All;
if ((faces & BoxFaces.PositiveZ) == BoxFaces.PositiveZ)
{
this.AddCubeFace(geo, center, new Vector3(0, 0, 1), new Vector3(0, 1, 0), zlength, xlength, ylength);
}
if ((faces & BoxFaces.NegativeZ) == BoxFaces.NegativeZ)
{
this.AddCubeFace(geo, center, new Vector3(0, 0, -1), new Vector3(0, 1, 0), zlength, xlength, ylength);
}
if ((faces & BoxFaces.PositiveX) == BoxFaces.PositiveX)
{
this.AddCubeFace(geo, center, new Vector3(1, 0, 0), new Vector3(0, 0, 1), xlength, ylength, zlength);
}
if ((faces & BoxFaces.NegativeX) == BoxFaces.NegativeX)
{
this.AddCubeFace(geo, center, new Vector3(-1, 0, 0), new Vector3(0, 0, 1), xlength, ylength, zlength);
}
if ((faces & BoxFaces.NegativeY) == BoxFaces.NegativeY)
{
this.AddCubeFace(geo, center, new Vector3(0, -1, 0), new Vector3(0, 0, 1), ylength, xlength, zlength);
}
if ((faces & BoxFaces.PositiveY) == BoxFaces.PositiveY)
{
this.AddCubeFace(geo, center, new Vector3(0, 1, 0), new Vector3(0, 0, 1), ylength, xlength, zlength);
}
return(geo);
}
public void AddCube(BoxFaces faces = BoxFaces.All)
{
if ((faces & BoxFaces.PositiveX) == BoxFaces.PositiveX)
{
AddFacePX();
}
if ((faces & BoxFaces.NegativeX) == BoxFaces.NegativeX)
{
AddFaceNX();
}
if ((faces & BoxFaces.NegativeY) == BoxFaces.NegativeY)
{
AddFaceNY();
}
if ((faces & BoxFaces.PositiveY) == BoxFaces.PositiveY)
{
AddFacePY();
}
if ((faces & BoxFaces.PositiveZ) == BoxFaces.PositiveZ)
{
AddFacePZ();
}
if ((faces & BoxFaces.NegativeZ) == BoxFaces.NegativeZ)
{
AddFaceNZ();
}
}
/// <summary>
/// Adds a box aligned with the X, Y and Z axes.
/// </summary>
/// <param name="rectangle">
/// The 3-D "rectangle".
/// </param>
public void AddBox(Rect3D rectangle, BoxFaces faces = BoxFaces.All)
{
this.AddBox(
new Vector3((float)rectangle.X + (float)(rectangle.SizeX * 0.5), (float)rectangle.Y + (float)(rectangle.SizeY * 0.5), (float)rectangle.Z + (float)(rectangle.SizeZ * 0.5)),
rectangle.SizeX,
rectangle.SizeY,
rectangle.SizeZ,
faces);
}
/// <summary>
/// Adds a box with the specifed faces, aligned with the X, Y and Z axes.
/// </summary>
/// <param name="center">
/// The center point of the box.
/// </param>
/// <param name="xlength">
/// The length of the box along the X axis.
/// </param>
/// <param name="ylength">
/// The length of the box along the Y axis.
/// </param>
/// <param name="zlength">
/// The length of the box along the Z axis.
/// </param>
/// <param name="faces">
/// The faces to include.
/// </param>
public void AddBox(Vector3 center, double xlength, double ylength, double zlength, BoxFaces faces = BoxFaces.All)
{
if ((faces & BoxFaces.PositiveX) == BoxFaces.PositiveX)
{
this.AddCubeFace(center, new Vector3(1, 0, 0), new Vector3(0, 0, 1), xlength, ylength, zlength);
}
if ((faces & BoxFaces.NegativeX) == BoxFaces.NegativeX)
{
this.AddCubeFace(center, new Vector3(-1, 0, 0), new Vector3(0, 0, 1), xlength, ylength, zlength);
}
if ((faces & BoxFaces.NegativeY) == BoxFaces.NegativeY)
{
this.AddCubeFace(center, new Vector3(0, -1, 0), new Vector3(0, 0, 1), ylength, xlength, zlength);
}
if ((faces & BoxFaces.PositiveY) == BoxFaces.PositiveY)
{
this.AddCubeFace(center, new Vector3(0, 1, 0), new Vector3(0, 0, 1), ylength, xlength, zlength);
}
if ((faces & BoxFaces.PositiveZ) == BoxFaces.PositiveZ)
{
this.AddCubeFace(center, new Vector3(0, 0, 1), new Vector3(0, 1, 0), zlength, xlength, ylength);
}
if ((faces & BoxFaces.NegativeZ) == BoxFaces.NegativeZ)
{
this.AddCubeFace(center, new Vector3(0, 0, -1), new Vector3(0, 1, 0), zlength, xlength, ylength);
}
}
/// <summary>
/// Generates a rectangles mesh on the axis-aligned plane given by the box-face.
/// </summary>
/// <param name="plane">Box face which determines the plane the grid lies on.</param>
/// <param name="columns">width of the grid, i.e. horizontal resolution </param>
/// <param name="rows">height of the grid, i.e. vertical resolution</param>
/// <param name="width">total size in horizontal </param>
/// <param name="height">total vertical size</param>
/// <param name="flipTriangles">flips the triangle faces</param>
/// <param name="flipTexCoordsUAxis">flips the u-axis (horizontal) of the texture coords.</param>
/// <param name="flipTexCoordsVAxis">flips the v-axis (vertical) of the tex.coords.</param>
public void AddRectangularMesh(BoxFaces plane, int columns, int rows, float width, float height, bool flipTriangles = false, bool flipTexCoordsUAxis = false, bool flipTexCoordsVAxis = false)
{
// checks
if (columns < 2 || rows < 2)
{
throw new ArgumentNullException("columns or rows too small");
}
if (width <= 0 || height <= 0)
{
throw new ArgumentNullException("width or height too small");
}
// index0
int index0 = this.positions.Count;
// positions
var stepy = height / (rows-1);
var stepx = width / (columns-1);
//rows++;
//columns++;
for (int y = 0; y < rows; y++)
{
for (int x = 0; x < columns; x++)
{
this.positions.Add(new Vector3(x * stepx, y * stepy, 0));
}
}
// indices
if (flipTriangles)
{
this.AddRectangularMeshTriangleIndicesFlipped(index0, rows, columns);
}
else
{
this.AddRectangularMeshTriangleIndices(index0, rows, columns);
}
// normals
if (this.normals != null)
{
this.AddRectangularMeshNormals(index0, rows, columns);
}
// texcoords
if (this.textureCoordinates != null)
{
this.AddRectangularMeshTextureCoordinates(rows, columns, flipTexCoordsVAxis, flipTexCoordsUAxis);
}
}
/// <summary>
/// Adds a box with the specified faces, aligned with the specified axes.
/// </summary>
/// <param name="center">The center point of the box.</param>
/// <param name="x">The x axis.</param>
/// <param name="y">The y axis.</param>
/// <param name="xlength">The length of the box along the X axis.</param>
/// <param name="ylength">The length of the box along the Y axis.</param>
/// <param name="zlength">The length of the box along the Z axis.</param>
/// <param name="faces">The faces to include.</param>
public void AddBox(Point3D center, Vector3D x, Vector3D y, double xlength, double ylength, double zlength, BoxFaces faces = BoxFaces.All)
{
var z = Vector3D.CrossProduct(x, y);
if ((faces & BoxFaces.Front) == BoxFaces.Front)
{
this.AddCubeFace(center, x, z, xlength, ylength, zlength);
}
if ((faces & BoxFaces.Back) == BoxFaces.Back)
{
this.AddCubeFace(center, -x, z, xlength, ylength, zlength);
}
if ((faces & BoxFaces.Left) == BoxFaces.Left)
{
this.AddCubeFace(center, -y, z, ylength, xlength, zlength);
}
if ((faces & BoxFaces.Right) == BoxFaces.Right)
{
this.AddCubeFace(center, y, z, ylength, xlength, zlength);
}
if ((faces & BoxFaces.Top) == BoxFaces.Top)
{
this.AddCubeFace(center, z, y, zlength, xlength, ylength);
}
if ((faces & BoxFaces.Bottom) == BoxFaces.Bottom)
{
this.AddCubeFace(center, -z, y, zlength, xlength, ylength);
}
}
/// <summary>
/// Adds a box with the specified faces, aligned with the X, Y and Z axes.
/// </summary>
/// <param name="center">
/// The center point of the box.
/// </param>
/// <param name="xlength">
/// The length of the box along the X axis.
/// </param>
/// <param name="ylength">
/// The length of the box along the Y axis.
/// </param>
/// <param name="zlength">
/// The length of the box along the Z axis.
/// </param>
/// <param name="faces">
/// The faces to include.
/// </param>
public void AddBox(Point3D center, double xlength, double ylength, double zlength, BoxFaces faces)
{
this.AddBox(center, new Vector3D(1, 0, 0), new Vector3D(0, 1, 0), xlength, ylength, zlength, faces);
}
/// <summary>
/// Add a box with specifed faces, align with the X, Y and Z axes.
/// </summary>
/// <param name="center">The center of the box.</param>
/// <param name="xLength">The length of the box along the X axis.</param>
/// <param name="yLength">The length of the box along the Y axis.</param>
/// <param name="zLength">The length of the box along the Z axis.</param>
/// <param name="faces">The faces to include.</param>
public void AddBox(Point3D center, double xLength, double yLength, double zLength, BoxFaces faces)
{
if ((faces & BoxFaces.Front) == BoxFaces.Front)
AddCubeFace(center, new Vector3D(0, 1, 0), new Vector3D(0, 0, 1), xLength, yLength, zLength);
if ((faces & BoxFaces.Left) == BoxFaces.Left)
AddCubeFace(center, new Vector3D(-1, 0, 0), new Vector3D(0, 0, 1), yLength, xLength, zLength);
if ((faces & BoxFaces.Right) == BoxFaces.Right)
AddCubeFace(center, new Vector3D(1, 0, 0), new Vector3D(0, 0, 1), yLength, xLength, zLength);
if ((faces & BoxFaces.Back) == BoxFaces.Back)
AddCubeFace(center, new Vector3D(0, -1, 0), new Vector3D(0, 0, 1), xLength, yLength, zLength);
if ((faces & BoxFaces.Top) == BoxFaces.Top)
AddCubeFace(center, new Vector3D(0, 0, 1), new Vector3D(0, -1, 0), zLength, yLength, xLength);
if ((faces & BoxFaces.Bottom) == BoxFaces.Bottom)
AddCubeFace(center, new Vector3D(0, 0, -1), new Vector3D(0, 1, 0), zLength, yLength, xLength);
}
/// <summary>
/// Adds a box with the specified faces, aligned with the X, Y and Z axes.
/// </summary>
/// <param name="center">
/// The center point of the box.
/// </param>
/// <param name="xlength">
/// The length of the box along the X axis.
/// </param>
/// <param name="ylength">
/// The length of the box along the Y axis.
/// </param>
/// <param name="zlength">
/// The length of the box along the Z axis.
/// </param>
/// <param name="faces">
/// The faces to include.
/// </param>
public void AddBox(Point3D center, double xlength, double ylength, double zlength, BoxFaces faces)
{
if ((faces & BoxFaces.Front) == BoxFaces.Front)
{
this.AddCubeFace(center, new Vector3D(1, 0, 0), new Vector3D(0, 0, 1), xlength, ylength, zlength);
}
if ((faces & BoxFaces.Back) == BoxFaces.Back)
{
this.AddCubeFace(center, new Vector3D(-1, 0, 0), new Vector3D(0, 0, 1), xlength, ylength, zlength);
}
if ((faces & BoxFaces.Left) == BoxFaces.Left)
{
this.AddCubeFace(center, new Vector3D(0, -1, 0), new Vector3D(0, 0, 1), ylength, xlength, zlength);
}
if ((faces & BoxFaces.Right) == BoxFaces.Right)
{
this.AddCubeFace(center, new Vector3D(0, 1, 0), new Vector3D(0, 0, 1), ylength, xlength, zlength);
}
if ((faces & BoxFaces.Top) == BoxFaces.Top)
{
this.AddCubeFace(center, new Vector3D(0, 0, 1), new Vector3D(0, 1, 0), zlength, xlength, ylength);
}
if ((faces & BoxFaces.Bottom) == BoxFaces.Bottom)
{
this.AddCubeFace(center, new Vector3D(0, 0, -1), new Vector3D(0, 1, 0), zlength, xlength, ylength);
}
}
