/// <summary>
/// Draws the graph on a canvas.
/// </summary>
/// <param name="Canvas">Canvas to draw on.</param>
/// <param name="Points">Points to draw.</param>
/// <param name="Normals">Optional normals.</param>
/// <param name="Parameters">Graph-specific parameters.</param>
/// <param name="PrevPoints">Points of previous graph of same type (if available), null (if not available).</param>
/// <param name="PrevNormals">Optional normals of previous graph of same type (if available), null (if not available).</param>
/// <param name="PrevParameters">Parameters of previous graph of same type (if available), null (if not available).</param>
/// <param name="DrawingVolume">Current drawing volume.</param>
public void DrawGraph(Graphs3D.Canvas3D Canvas, Vector4[,] Points, Vector4[,] Normals,
object[] Parameters, Vector4[,] PrevPoints, Vector4[,] PrevNormals,
object[] PrevParameters, DrawingVolume DrawingVolume)
{
int i, c = Points.GetLength(0);
int j, d = Points.GetLength(1);
SKColor Color = Graph.ToColor(Parameters[0]);
Vector4[] Nodes = new Vector4[4];
c--;
d--;
for (i = 0; i < c; i++)
{
for (j = 0; j < d; j++)
{
Nodes[0] = Points[i, j];
Nodes[1] = Points[i + 1, j];
Nodes[2] = Points[i + 1, j + 1];
Nodes[3] = Points[i, j + 1];
if (Normals is null)
{
Canvas.PolyLine(Nodes, Color);
}
}
}
}
