void FirstTransformation(Abstract3DInstance instance, double Xc, double Yc) { if (instance == null) { return; } TransformEngine.Scale(instance, 140, 0, 0, 0); TransformEngine.Translate(instance, Xc, Yc, 0); _scaleFactor = 1; }
private void trackBar1_Scroll(object sender, EventArgs e) { if (_instance3D == null) { return; } const double cMin = 0.5; const double cMax = 2; double sf = (cMax - cMin) / Convert.ToDouble(trackBar1.Maximum - trackBar1.Minimum) * Convert.ToDouble(trackBar1.Value - trackBar1.Minimum) + cMin; TransformEngine.Scale(_instance3D, sf / _scaleFactor, pictureBox1.Width / 2, pictureBox1.Height / 2, 0); _scaleFactor = sf; Render(); }