/// <summary>
/// Generate grid line
/// </summary>
/// <returns> [x0,y0,z0,x1,y1,z1][]</returns>
public static double[][] GenerateGridSegment(ParametricSurface srf, int uDiv, int vDiv)
{
double[][] result = null;
List <double[]> ls = new List <double[]>();
double[][][] gridPoints = GeneratePointGrid(srf, uDiv, vDiv);
// add vertical segments
for (int i = 0; i <= uDiv; i++)
{
for (int j = 0; j < vDiv; j++)
{
var pt1 = gridPoints[i][j];
var pt2 = gridPoints[i][j + 1];
ls.Add(pt1.Concat(pt2).ToArray());
}
}
// add horizontal segments
for (int j = 0; j <= vDiv; j++)
{
for (int i = 0; i < uDiv; i++)
{
var pt1 = gridPoints[i][j];
var pt2 = gridPoints[i + 1][j];
ls.Add(pt1.Concat(pt2).ToArray());
}
}
result = ls.ToArray();
return(result);
}
/// <summary>
/// Generate grid points
/// </summary>
public static double[][][] GeneratePointGrid(ParametricSurface srf, int uDiv, int vDiv)
{
double[][][] uvMat = GenerateUVGridParameters(uDiv, vDiv);
var gridPoints = uvMat
.Select(n => n.Select(m => srf.ParameterAt(m[0], m[1])).ToArray())
.ToArray();
return(gridPoints);
}
public override void Run(RenderControl renderer)
{
string fileName = GetResourcePath("Holes.stp");
var shape = StepIO.Open(fileName);
if (shape == null)
{
return;
}
var face = shape.FindChild(EnumTopoShapeType.Topo_FACE, 148);
var surface = new ParametricSurface(face);
var wireExp = new WireExplor(face);
var wires = wireExp.GetInnerWires();
foreach (var wire in wires)
{
// Show wire
renderer.ShowShape(wire, Vector3.Red);
var curve = new ParametricCurve(wire);
var paramList = curve.SplitByUniformLength(1, 0.01);
var lines = new SegmentsSceneNode((uint)paramList.Count, Vector3.Green, 2);
uint idx = 0;
foreach (var p in paramList)
{
var pt = curve.Value(p);
var pointSur = new ExtremaPointSurface();
if (pointSur.Initialize(surface, pt, GP.Resolution(), GP.Resolution()))
{
var uv = pointSur.GetParameter(0);
var normal = surface.GetNormal(uv.X(), uv.Y());
lines.SetPositions(idx++, Vector3.From(pt), Vector3.From(pt.XYZ().Added(normal.XYZ())));
}
}
lines.UpdateBoundingBox();
renderer.ShowSceneNode(lines);
}
// Show face
var faceMaterial = MeshStandardMaterial.Create("pbr.face");
faceMaterial.SetColor(Vector3.LightGray);
faceMaterial.SetFaceSide(EnumFaceSide.DoubleSide);
var faceNode = BrepSceneNode.Create(face, faceMaterial, null);
faceNode.SetDisplayFilter(EnumShapeFilter.Face);
renderer.ShowSceneNode(faceNode);
}
public override void OnSelectionChanged(RenderControl render, PickedResult result)
{
var item = result.GetItem();
if (item.GetNode() == null)
{
return;
}
var ssn = BrepSceneNode.Cast(item.GetNode());
if (ssn == null)
{
return;
}
if (item.GetShapeType() == EnumShapeFilter.Face)
{
var face = ssn.GetShape().GetShape().FindChild(EnumTopoShapeType.Topo_FACE, (int)item.GetShapeIndex());
if (face != null)
{
var surface = new ParametricSurface(face);
var pt = item.GetPoint().GetPosition();
var param = surface.ComputeClosestPoint(pt.ToPnt(), GP.Resolution(), GP.Resolution());
var values = surface.D1(param.X(), param.Y());
var postion = Vector3.From(values.GetPoint());
var vecs = values.GetVectors();
var dir = Vector3.From(vecs[0].Crossed(vecs[1]));
dir.normalize();
mArrow.SetLocation(postion, dir);
mArrow.RequstUpdate();
mArrow.Update();
render.GetContext().GetSelection().Clear();
render.RequestDraw(EnumUpdateFlags.Scene);
}
}
}
protected override void InitFunction()
{
if (this.SourceType == SourceType.Equation)
{
_function = new ParametricSurface(_formula, _formulaY, _formulaZ);
}
else
{
// Parametric3DEvalutor evalutor = new Parametric3DEvalutor();
// evalutor.Text = this.CodeBody;
// switch(this.CodeLanguage)
// {
// case CodeLanguage.CSharp:
// evalutor.language= CodeLanguage.CSharp;
// break;
// case CodeLanguage.VBNET:
// evalutor.language = CodeLanguage.VBNET;
// break;
// }
// _function = new Parameter3DFunction(new Parameter3DFunctionDelegate(evalutor.Invoke));
FunctionEvalutor evalutor = new FunctionEvalutor(this.CodeBody, new string[] { "u", "v" }, this.CodeLanguage);
_function = new ParametricSurface((ParametricSurfaceDelegate)evalutor.CreateDelegate(typeof(ParametricSurfaceDelegate)));
}
}
public ParametricSurfacePlotter(ParametricSurface function)
{
_function = function.ValueAt;
}
