public override bool Run(FeatureContext context)
{
LineStyle lineStyle = new LineStyle();
lineStyle.SetLineWidth(0.5f);
lineStyle.SetColor(ColorValue.RED);
var points = new List <Vector3>();
points.Add(new Vector3(0, 0, 0));
points.Add(new Vector3(50, 0, 0));
points.Add(new Vector3(100, 0, 0));
points.Add(new Vector3(0, 50, 0));
points.Add(new Vector3(50, 50, 5));
points.Add(new Vector3(100, 50, -5));
points.Add(new Vector3(0, 150, 5));
points.Add(new Vector3(50, 150, -5));
points.Add(new Vector3(100, 150, 0));
TopoShape face = GlobalInstance.BrepTools.MakeSurfaceFromPoints(points, 3, 3);
context.ShowGeometry(face);
GeomSurface surface = new GeomSurface();
surface.Initialize(face);
double ufirst = surface.FirstUParameter();
double uLarst = surface.LastUParameter();
double vfirst = surface.FirstVParameter();
double vLast = surface.LastVParameter();
double ustep = (uLarst - ufirst) * 0.1;
double vstep = (vLast - vfirst) * 0.1;
for (double ii = ufirst; ii <= uLarst; ii += ustep)
{
for (double jj = vfirst; jj <= vLast; jj += vstep)
{
var data = surface.D1(ii, jj);
Vector3 pos = data[0];
Vector3 dirU = data[1];
Vector3 dirV = data[2];
Vector3 dir = dirV.CrossProduct(dirU);
//dir.Normalize();
{
TopoShape line = GlobalInstance.BrepTools.MakeLine(pos, pos + dir * 0.01f);
SceneNode node = context.ShowGeometry(line);
node.SetLineStyle(lineStyle);
}
}
}
return(true);
}
private void planeAngleToolStripMenuItem_Click(object sender, EventArgs e)
{
// plane
Vector3 planeDir = Vector3.UNIT_Z;
TopoShape plane1 = GlobalInstance.BrepTools.MakePlaneFace(Vector3.ZERO, planeDir, -100, 100, -100, 100);
{
GeomSurface gs = new GeomSurface();
gs.Initialize(plane1);
List<Vector3> rst = gs.D1(gs.FirstUParameter(), gs.FirstVParameter());
Vector3 dir2 = rst[1].CrossProduct(rst[2]);
MessageBox.Show(dir2.ToString());
}
Vector3 normal = new Vector3(0,1,1);
normal.Normalize();
TopoShape plane2 = GlobalInstance.BrepTools.MakePlaneFace(Vector3.ZERO, normal, -100, 100, -100, 100);
renderView.ShowGeometry(plane1, ++shapeId);
renderView.ShowGeometry(plane2, ++shapeId);
LineStyle style = new LineStyle();
style.SetColor(ColorValue.GREEN);
// witness
Vector3 end1 = new Vector3(0, 0, 100);
LineNode line1 = new LineNode();
line1.Set(Vector3.ZERO, end1);
line1.SetLineStyle(style);
renderView.ShowSceneNode(line1);
Vector3 end2 = normal * 100;
LineNode line2 = new LineNode();
line2.Set(Vector3.ZERO, end2);
line2.SetLineStyle(style);
renderView.ShowSceneNode(line2);
// angle
float angle = normal.AngleBetween(planeDir);
Vector3 dir = normal.CrossProduct(planeDir);
dir.Normalize();
TopoShape arc = GlobalInstance.BrepTools.MakeArc(end2, end1, Vector3.ZERO, dir);
SceneNode arcNode = renderView.ShowGeometry(arc, ++shapeId);
arcNode.SetLineStyle(style);
// text
TextNode text = new TextNode();
text.SetText(angle.ToString());
Vector3 pos = end2 + end1;
pos = pos * 0.5f;
text.SetPosition(pos);
renderView.ShowSceneNode(text);
renderView.RequestDraw();
}
private void surfaceToolStripMenuItem_Click(object sender, EventArgs e)
{
Platform.LineStyle lineStyle = new Platform.LineStyle();
lineStyle.SetLineWidth(0.5f);
lineStyle.SetColor(ColorValue.RED);
var points = new System.Collections.Generic.List<Vector3>();
points.Add(new Vector3(0, 0, 0));
points.Add(new Vector3(50, 0, 0));
points.Add(new Vector3(100, 0, 0));
points.Add(new Vector3(0, 50, 0));
points.Add(new Vector3(50, 50, 5));
points.Add(new Vector3(100, 50, -5));
points.Add(new Vector3(0, 150, 5));
points.Add(new Vector3(50, 150, -5));
points.Add(new Vector3(100, 150, 0));
TopoShape face = GlobalInstance.BrepTools.MakeSurfaceFromPoints(points, 3, 3);
renderView.ShowGeometry(face, 101);
GeomSurface surface = new GeomSurface();
surface.Initialize(face);
float ufirst = surface.FirstUParameter();
float uLarst = surface.LastUParameter();
float vfirst = surface.FirstVParameter();
float vLast = surface.LastVParameter();
float ustep = (uLarst - ufirst) * 0.1f;
float vstep = (vLast - vfirst) * 0.1f;
for(float ii=ufirst; ii<=uLarst; ii+= ustep)
for (float jj = vfirst; jj <= vLast; jj += vstep)
{
var data = surface.D1(ii, jj);
Vector3 pos = data[0];
Vector3 dirU = data[1];
Vector3 dirV = data[2];
Vector3 dir = dirV.CrossProduct(dirU);
dir.Normalize();
{
Platform.TopoShape line = GlobalInstance.BrepTools.MakeLine(pos, pos + dir*10.0f);
Platform.SceneNode node = renderView.ShowGeometry(line, 101);
node.SetLineStyle(lineStyle);
}
}
TopoShapeProperty property = new TopoShapeProperty();
property.SetShape(face);
float area = property.SurfaceArea();
TextNode text = new TextNode();
text.SetText(String.Format("Surface Area: {0}", area));
text.SetPosition(new Vector3(100, 100, 0));
renderView.SceneManager.ClearNodes2d();
renderView.SceneManager.AddNode2d(text);
renderView.RequestDraw();
}
private BendHelper BendDown(TopoShape face, TopoShape line, Bending bending)
{
#region 计算平面法向量
GeomSurface surface = new GeomSurface();
surface.Initialize(face);
//参数域UV范围
double uFirst = surface.FirstUParameter();
double uLast = surface.LastUParameter();
double vFirst = surface.FirstVParameter();
double vLast = surface.LastVParameter();
//取中点
double umid = uFirst + (uLast - uFirst) * 0.5f;
double vmid = vFirst + (vLast - vFirst) * 0.5f;
//计算法向量
var data = surface.D1(umid, vmid);
Vector3 dirU = data[1];
Vector3 dirV = data[2];
Vector3 dirF = dirV.CrossProduct(dirU);
dirF.Normalize();
#endregion
#region 计算边线参数
GeomCurve curve = new GeomCurve();
curve.Initialize(line);
Vector3 dirL = curve.DN(curve.FirstParameter(), 1);
Vector3 stPt = curve.Value(curve.FirstParameter()); //起点
Vector3 edPt = curve.Value(curve.LastParameter()); //终点
#endregion
#region 绘制草图
TopoShapeGroup lineGroup = new TopoShapeGroup();
Vector3 center = stPt + dirF * bending.Radius; //圆心
Vector3 radius = stPt - center; //半径
double theta = bending.Angle * (Math.PI / 180.0);
Vector3 radius2 = radius * Math.Cos(theta) + dirL.CrossProduct(radius) * Math.Sin(theta);
Vector3 edArc = center + radius2; //圆弧终点
TopoShape arc = GlobalInstance.BrepTools.MakeArc(stPt, edArc, center, dirL); //绘制圆弧
if (arc != null)
{
lineGroup.Add(arc);
}
Vector3 edLine = dirL.CrossProduct(radius2) * (bending.Length / bending.Radius) + edArc;
arc = GlobalInstance.BrepTools.MakeLine(edArc, edLine);
lineGroup.Add(arc);
//扫描生成折弯
TopoShape wireSketch = GlobalInstance.BrepTools.MakeWire(lineGroup);
TopoShape sweep;
if (wireSketch != null)
{
sweep = GlobalInstance.BrepTools.Sweep(wireSketch, line, true);
}
else
{
sweep = GlobalInstance.BrepTools.Sweep(arc, line, true);
}
TopoShape oFace = GlobalInstance.BrepTools.Sweep(arc, line, true).GetSubShape(0, 1);
TopoShape oEdge = GlobalInstance.BrepTools.MakeLine(edLine, edLine + edPt - stPt);
#endregion
BendHelper bend = new BendHelper()
{
Sweep = sweep,
EdFace = oFace,
EdLine = oEdge
};
return(bend);
}
private void TransOnSelectBtn_Click(object sender, EventArgs e)
{
//Get selected shape
SelectedShapeQuery context = new SelectedShapeQuery();
renderView.QuerySelection(context);
var shape = context.GetGeometry();
var face = context.GetSubGeometry();
if (shape == null)
{
return;
}
var center = shape.GetBBox().GetCenter();
#region 计算法向量
GeomSurface surface = new GeomSurface();
surface.Initialize(face);
//参数域UV范围
double uFirst = surface.FirstUParameter();
double uLast = surface.LastUParameter();
double vFirst = surface.FirstVParameter();
double vLast = surface.LastVParameter();
//取中点
double umid = uFirst + (uLast - uFirst) * 0.5f;
double vmid = vFirst + (vLast - vFirst) * 0.5f;
//计算法向量
var data = surface.D1(umid, vmid);
Vector3 dirU = data[1];
Vector3 dirV = data[2];
Vector3 dir = dirV.CrossProduct(dirU);
dir.Normalize();
Console.WriteLine("\tDir {0}", dir);
#endregion
#region 坐标变换
Vector3 dirN = new Vector3();
if (face.GetOrientation() == EnumShapeOrientation.ShapeOrientation_REVERSED)
{
dirN = dir * -1;
}
else
{
dirN = dir;
}
//Translation
shape = GlobalInstance.BrepTools.Translate(shape, -center);
//Rotation
Vector3 dirZ = new Vector3(0, 0, -1);
shape = GlobalInstance.BrepTools.Rotation(shape, dirN.CrossProduct(dirZ), dirN.AngleBetween(dirZ));
#endregion
#region Render
if (shape != null)
{
topoShape = shape;
renderView.ClearScene();
renderView.ShowGeometry(shape, shapeId);
}
renderView.FitAll();
renderView.RequestDraw(EnumRenderHint.RH_LoadScene);
#endregion
}
private void TransOnMax(TopoShape shape)
{
double areaM = 0;
Vector3 dirN = new Vector3();
Vector3 pos = new Vector3();
TopoExplor topo = new TopoExplor();
TopoShapeGroup group2 = topo.ExplorFaces(shape);
for (int i = 0; i < group2.Size(); i++)
{
TopoShape face = group2.GetTopoShape(i);
#region 计算面积
TopoShapeProperty property = new TopoShapeProperty();
property.SetShape(face);
Console.WriteLine("Face {0}:\n\tArea {1}\n\tOrientation {2}", i, property.SurfaceArea(), face.GetOrientation());
#endregion
#region 计算法向量
GeomSurface surface = new GeomSurface();
surface.Initialize(face);
//参数域UV范围
double uFirst = surface.FirstUParameter();
double uLast = surface.LastUParameter();
double vFirst = surface.FirstVParameter();
double vLast = surface.LastVParameter();
//取中点
double umid = uFirst + (uLast - uFirst) * 0.5f;
double vmid = vFirst + (vLast - vFirst) * 0.5f;
//计算法向量
var data = surface.D1(umid, vmid);
Vector3 dirU = data[1];
Vector3 dirV = data[2];
Vector3 dir = dirV.CrossProduct(dirU);
dir.Normalize();
Console.WriteLine("\tDir {0}", dir);
#endregion
#region 取最大的面
if (property.SurfaceArea() > areaM)
{
areaM = property.SurfaceArea();
pos = data[0];
Console.WriteLine(data[0]);
if (face.GetOrientation() == EnumShapeOrientation.ShapeOrientation_REVERSED)
{
dirN = dir * -1;
}
else
{
dirN = dir;
}
}
#endregion
}
#region 坐标变换
//Translation
shape = GlobalInstance.BrepTools.Translate(shape, -pos);
//Rotation
Vector3 dirZ = new Vector3(0, 0, -1);
shape = GlobalInstance.BrepTools.Rotation(shape, dirN.CrossProduct(dirZ), dirN.AngleBetween(dirZ));
#endregion
if (shape != null)
{
topoShape = shape;
renderView.ClearScene();
renderView.ShowGeometry(shape, shapeId);
}
renderView.FitAll();
renderView.RequestDraw(EnumRenderHint.RH_LoadScene);
}