/// <summary>
/// Converts an array of xy to an array of float points
/// </summary>
/// <param name="Array">Array of xy, which will be converted</param>
/// <returns>Array of <see cref="xyf"/></returns>
public static xyf[] ToxyfArray(xy[] Array)
{
xyf[] Result = new xyf[Array.Length];
for (int i = 0; i < Array.Length; i++)
{
Result[i] = new xyf((float)Array[i].x, (float)Array[i].y);
}
return(Result);
}
/// <summary>
/// Converts a List of xy to an array of float points
/// </summary>
/// <param name="Array">List of xy, which will be converted</param>
/// <returns>Array of <see cref="xyf"/></returns>
public static xyf[] ToxyfArray(List <xy> Array)
{
xyf[] Result = new xyf[Array.Count];
for (int i = 0; i < Array.Count; i++)
{
Result[i] = new xyf((float)Array[i].x, (float)Array[i].y);
}
return(Result);
}
/// <summary>
/// Multiply the 2D-point <see cref="xyf"/> with the matrix but omit the third component.
/// This multiplication gives the zero point by a multiplication of a zero point.
/// You can use it to transform vectors.
/// </summary>
/// <param name="a">a <see cref="xyf"/>point, which will be multiplied</param>
/// <returns>
/// Transformed point
/// </returns>
public xyf multaffin(xyf a)
{
xyf p = new xyf(0, 0);
{
p.x = a00 * a.x + a01 * a.y;
p.y = a10 * a.x + a11 * a.y;
}
return(p);
}
///// <summary>
///// Converts the Loxy to a <see cref="Loxyz"/> by setting the z-coordinates to 0.
///// </summary>
///// <returns></returns>
//public Loxyz toLoxyz()
//{
// return toLoxyz(0);
//}
short getPointId(xyf Point)
{
//_TmpPoints.Add(Point);
//return (uint)(_TmpPoints.Count - 1);
if (TmpPointArray.ContainsKey(Point))
{
object Ob = TmpPointArray[Point];
return((short)Ob);
}
else
{
TmpPointArray.Add(Point, (uint)_TmpPoints.Count);
_TmpPoints.Add(Point);
return((short)(_TmpPoints.Count - 1));
}
}
/// <summary>
/// overrides the <see cref="Surface.OnDraw(OpenGlDevice)"/> method.
/// </summary>
/// <param name="Device">the <see cref="OpenGlDevice"/> in which will be painted.</param>
protected override void OnDraw(OpenGlDevice Device)
{
if (!plane)
{
base.OnDraw(Device); return;
}
object Handle = null;
if ((Device.RenderKind == RenderKind.SnapBuffer) || (Entity.Compiling))
{
SurfaceSnappItem S = new SurfaceSnappItem();
Handle = Device.Selector.RegisterSnapItem(S);
S.Surface = this;
}
IndexType[] Indices = null;
xyzf[] Points = null;
xyzf[] Normals = null;
xyf[] Texture = null;
// if ((BoundedCurves != null) && (BoundedCurves.Count > 0))
{
Indices = new IndexType[] { 0, 1, 2, 0, 2, 3 };
Points = new xyzf[] { A, B, C, D };
Normals = new xyzf[] { N00.toXYZF(), N00.toXYZF(), N00.toXYZF(), N00.toXYZF() };
Texture = new xyf[] { new xyf(0, 0), new xyf(0, 0), new xyf(0, 0), new xyf(0, 0) };
}
//else
// GetTrianglesFull(ref Indices, ref Points, ref Normals, ref Texture);
if (Device.PolygonMode == PolygonMode.Fill)
{
Primitives3d.drawTriangles(Device, Indices, Points, Normals, Texture, null);
}
else
{
Primitives3d.drawFouranglesLined(Device, Indices, Points, Normals, Texture);
}
Entity.CheckCompiling();
if ((Device.RenderKind == RenderKind.SnapBuffer) || (Entity.Compiling))
{
Device.Selector.UnRegisterSnapItem(Handle);
}
}
/// <summary>
/// This operator returns the multiplication of a two-dimensional floatvector with the matrix3x3.
/// </summary>
/// <param name="a">3X3 Matrix</param>
/// <param name="b">2D-floatvector</param>
/// <returns>2D-floatvector</returns>
public static xyf operator *(Matrix3x3 a, xyf b)
{
float x = b.x;
float y = b.y;
xyf p = new xyf(0, 0);
float r;
{
p.x = a.a00 * x + a.a01 * y + a.a02;
p.y = a.a10 * x + a.a11 * y + a.a12;
r = a.a20 * x + a.a21 * y + a.a22;
if (!Utils.Equals(r, 0))
{
p.x = p.x / r;
p.y = p.y / r;
}
}
return(p);
}
static string TextureToString(xyf Pt)
{
string s = "new xyf(";
if (Pt.x == 1)
{
s += "Size.x,";
}
else
{
s += "0,";
}
if (Pt.y == 1)
{
s += "+Size.y";
}
else
{
s += "0";
}
s += ")";
return(s);
}
/// <summary>
/// adds the float point a
/// </summary>
/// <param name="a"></param>
/// <returns>returns this + a</returns>
public xyf add(xyf a)
{
return(new xyf(a.x + x, a.y + y));
}
private void drawFilledArray2d(OpenGlDevice Device, Loxy L)
{
if (L.Count == 0)
{
return;
}
double xMax = -10000000;
double yMax = -10000000;
double xMin = 10000000;
double yMin = 10000000;
if ((Device.texture != null) && (Device.texture.SoBigAsPossible != Drawing3d.Texture.BigAsPosible.None))
{
for (int i = 0; i < L[0].Count; i++)
{
if (L[0][i].X > xMax)
{
xMax = L[0][i].X;
}
if (L[0][i].X < xMin)
{
xMin = L[0][i].X;
}
if (L[0][i].Y > yMax)
{
yMax = L[0][i].Y;
}
if (L[0][i].Y < yMin)
{
yMin = L[0][i].Y;
}
}
}
double xDiff = xMax - xMin;
double yDiff = yMax - yMin;
List <IndexType> Indices = new List <IndexType>();
xyf[] Points = null;
L.TriAngulation(Indices, ref Points);
xyf[] Texture = new xyf[Points.Length];
float Aspectx = 1;
float Aspecty = 1;
if ((Device.texture != null) && (Device.texture.SoBigAsPossible != Drawing3d.Texture.BigAsPosible.None))
{
if (Device.texture.Bitmap != null)
{
double w = (float)Device.texture.Bitmap.Width / Device.PixelsPerUnit;
double h = (float)Device.texture.Bitmap.Height / Device.PixelsPerUnit;
if (Device.texture.KeepAspect)
{
if (Device.texture.SoBigAsPossible == Drawing3d.Texture.BigAsPosible.Height)
{
Aspectx = (float)(h / w);
}
else
{
Aspecty = (float)(w / h);
}
}
}
for (int i = 0; i < Points.Length; i++)
{
if (Device.texture.KeepAspect)
{
if (Aspecty != 1)
{
Texture[i] = new xyf((Points[i].x - (float)xMin) / (float)(xDiff), (Points[i].y - (float)yMin) / (float)(xDiff / Aspecty));
}
if (Aspectx != 1)
{
Texture[i] = new xyf((Points[i].x - (float)xMin) / (float)(yDiff / Aspectx), (Points[i].y - (float)yMin) / (float)(yDiff));
}
}
else
{
Texture[i] = new xyf((Points[i].x - (float)xMin) / (float)(xDiff), (Points[i].y - (float)yMin) / (float)(yDiff));
}
}
}
else
{
for (int i = 0; i < Points.Length; i++)
{
Texture[i] = Points[i] + Points[0] * (-1);
}
}
Primitives2d.drawTriangles2d(Device, Indices, Points, Texture);
}
void RefreshVertices()
{
Position = new xyzf[(UResolution + 1) * (VResolution + 1)];
Normals = new xyzf[(UResolution + 1) * (VResolution + 1)];
Rectangled R = new Rectangled(0, 0, 1, 1);
double xStep = (float)1 / (float)(UResolution);
double yStep = (float)1 / (float)(VResolution);
xyzf _Point = new xyzf(0, 0, 0);
xyzf _Normal = new xyzf(0, 0, 0);
float ustep = (float)(Width / (float)UResolution);
float vstep = (float)(Height / (float)VResolution);
for (int u = 0; u < UResolution + 1; u++)
{
int URow = u * (VResolution + 1);
for (int v = 0; v < VResolution + 1; v++)
{
Position[URow + v] = new xyzf((float)Origin.x + u * ustep, (float)Origin.y + v * vstep, (float)Origin.z);
}
}
for (int u = 0; u < UResolution + 1; u++)
{
int URow = u * (VResolution + 1);
for (int v = 0; v < VResolution + 1; v++)
{
Normals[URow + v] = new xyzf(0, 0, 1);
}
}
TextureCoords = new xyf[(UResolution + 1) * (VResolution + 1)];
ustep = (float)(1 / (float)UResolution);
vstep = (float)(1 / (float)VResolution);
for (int u = 0; u < UResolution + 1; u++)
{
int URow = u * (VResolution + 1);
for (int v = 0; v < VResolution + 1; v++)
{
TextureCoords[URow + v] = new xyf(u * ustep, v * vstep);
}
}
if (UseQuads)
{
Indices = new int[UResolution * VResolution * 4];
int ID = 0;
for (int u = 0; u < UResolution; u++)
{
int URow = u * (VResolution + 1);
for (int v = 0; v < VResolution; v++)
{
Indices[ID] = u * (VResolution + 1) + v;
Indices[ID + 1] = u * (VResolution + 1) + v + 1;
Indices[ID + 2] = (u + 1) * (VResolution + 1) + v + 1;
Indices[ID + 3] = (u + 1) * (VResolution + 1) + v;
ID += 4;
}
}
TriangleIndices = getTriangleIndices();
}
else
{
Indices = getTriangleIndices();
}
}