Esempio n. 1
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        public Draw3DObject(Panel _panel)
        {
            panel = _panel;

            float oneOverd = oneOverdFactor / (2 * panel.Height / 4);
            matrix = Matrix3.AzimuthElevation(elevation, azimuth, oneOverd);
        }
Esempio n. 2
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 public void TransformNormalize(Matrix3 m)
 {
     float[] result = m.VectorMultiply(new float[4] { X, Y, Z, W });
     X = result[0] / result[3];
     Y = result[1] / result[3];
     Z = result[2];
     W = 1;
 }
Esempio n. 3
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 // Axonometric projection matrix:
 public static Matrix3 Axonometric(float alpha, float beta)
 {
     Matrix3 result = new Matrix3();
     float sna = (float)Math.Sin(alpha * Math.PI / 180);
     float cna = (float)Math.Cos(alpha * Math.PI / 180);
     float snb = (float)Math.Sin(beta * Math.PI / 180);
     float cnb = (float)Math.Cos(beta * Math.PI / 180);
     result.M[0, 0] = cnb;
     result.M[0, 2] = snb;
     result.M[1, 0] = sna * snb;
     result.M[1, 1] = cna;
     result.M[1, 2] = -sna * cnb;
     result.M[2, 2] = 0;
     return result;
 }
Esempio n. 4
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 // Multiply two matrices together:
 public static Matrix3 operator *(Matrix3 m1, Matrix3 m2)
 {
     Matrix3 result = new Matrix3();
     for (int i = 0; i < 4; i++)
     {
         for (int j = 0; j < 4; j++)
         {
             float element = 0;
             for (int k = 0; k < 4; k++)
             {
                 element += m1.M[i, k] * m2.M[k, j];
             }
             result.M[i, j] = element;
         }
     }
     return result;
 }
Esempio n. 5
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        public static Matrix3 AzimuthElevation(float elevation, float azimuth, float oneOverd)
        {
            Matrix3 result = new Matrix3();
            Matrix3 rotate = new Matrix3();

            // make sure elevation in the range of [-90, 90]:
            if (elevation > 90)
                elevation = 90;
            else if (elevation < -90)
                elevation = -90;
            // Make sure azimuth in the range of [-180, 180]:
            if (azimuth > 180)
                azimuth = 180;
            else if (azimuth < -180)
                azimuth = -180;

            elevation = elevation * (float)Math.PI / 180.0f;
            float sne = (float)Math.Sin(elevation);
            float cne = (float)Math.Cos(elevation);
            azimuth = azimuth * (float)Math.PI / 180.0f;
            float sna = (float)Math.Sin(azimuth);
            float cna = (float)Math.Cos(azimuth);
            rotate.M[0, 0] = cna;
            rotate.M[0, 1] = sna;
            rotate.M[0, 2] = 0;
            rotate.M[1, 0] = -sne * sna;
            rotate.M[1, 1] = sne * cna;
            rotate.M[1, 2] = cne;
            rotate.M[2, 0] = cne * sna;
            rotate.M[2, 1] = -cne * cna;
            rotate.M[2, 2] = sne;

            if (oneOverd <= 0)
                result = rotate;
            else if (oneOverd > 0)
            {
                Matrix3 perspective = Matrix3.Perspective(1 / oneOverd);
                result = perspective * rotate;
            }
            return result;
        }
Esempio n. 6
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 // Create a translation matrix
 public static Matrix3 Translate3(float dx, float dy, float dz)
 {
     Matrix3 result = new Matrix3();
     result.M[0, 3] = dx;
     result.M[1, 3] = dy;
     result.M[2, 3] = dz;
     return result;
 }
Esempio n. 7
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 // Top view projection matrix:
 public static Matrix3 TopView()
 {
     Matrix3 result = new Matrix3();
     result.M[1, 1] = 0;
     result.M[2, 2] = 0;
     result.M[1, 2] = -1;
     return result;
 }
Esempio n. 8
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 // Side view projection matrix:
 public static Matrix3 SideView()
 {
     Matrix3 result = new Matrix3();
     result.M[0, 0] = 0;
     result.M[2, 2] = 0;
     result.M[0, 2] = -1;
     return result;
 }
Esempio n. 9
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 // Create a scaling matrix:
 public static Matrix3 Scale3(float sx, float sy, float sz)
 {
     Matrix3 result = new Matrix3();
     result.M[0, 0] = sx;
     result.M[1, 1] = sy;
     result.M[2, 2] = sz;
     return result;
 }
Esempio n. 10
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 // Create a rotation matrix around the z axis:
 public static Matrix3 Rotate3Z(float theta)
 {
     theta = theta * (float)Math.PI / 180.0f;
     float sn = (float)Math.Sin(theta);
     float cn = (float)Math.Cos(theta);
     Matrix3 result = new Matrix3();
     result.M[0, 0] = cn;
     result.M[0, 1] = -sn;
     result.M[1, 0] = sn;
     result.M[1, 1] = cn;
     return result;
 }
Esempio n. 11
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 // Perspective projection matrix:
 public static Matrix3 Perspective(float d)
 {
     Matrix3 result = new Matrix3();
     result.M[3, 2] = -1 / d;
     return result;
 }
Esempio n. 12
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 // Oblique projection matrix:
 public static Matrix3 Oblique(float alpha, float theta)
 {
     Matrix3 result = new Matrix3();
     float ta = (float)Math.Tan(alpha * Math.PI / 180);
     float snt = (float)Math.Sin(theta * Math.PI / 180);
     float cnt = (float)Math.Cos(theta * Math.PI / 180);
     result.M[0, 2] = -cnt / ta;
     result.M[1, 2] = -snt / ta;
     result.M[2, 2] = 0;
     return result;
 }
Esempio n. 13
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 // Front view projection matrix:
 public static Matrix3 FrontView()
 {
     Matrix3 result = new Matrix3();
     result.M[2, 2] = 0;
     return result;
 }
Esempio n. 14
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 public static Matrix3 Euler(float alpha, float beta, float gamma)
 {
     Matrix3 result = new Matrix3();
     alpha = alpha * (float)Math.PI / 180.0f;
     float sna = (float)Math.Sin(alpha);
     float cna = (float)Math.Cos(alpha);
     beta = beta * (float)Math.PI / 180.0f;
     float snb = (float)Math.Sin(beta);
     float cnb = (float)Math.Cos(beta);
     gamma = gamma * (float)Math.PI / 180.0f;
     float sng = (float)Math.Sin(gamma);
     float cng = (float)Math.Cos(gamma);
     result.M[0, 0] = cna * cng - sna * snb * sng;
     result.M[0, 1] = -snb * sng;
     result.M[0, 2] = sna * cng - cna * cnb * sng;
     result.M[1, 0] = -sna * snb;
     result.M[1, 1] = cnb;
     result.M[1, 2] = cna * snb;
     result.M[2, 0] = -cna * sng - sna * cnb * cng;
     result.M[2, 1] = -snb * cng;
     result.M[2, 2] = cna * cnb * cng - sna * snb;
     return result;
 }