public EdgeInfo(TopoShape edge, int idx, int faceIdx, double length)
{
Curve = new GeomCurve();
Curve.Initialize(edge);
Index = idx;
FaceIndex = faceIdx;
var start = Curve.Value(Curve.FirstParameter());
var end = Curve.Value(Curve.LastParameter());
Direction = end - start;
Direction.Normalize();
Length = length;
var pts = GlobalInstance.TopoExplor.ExplorVertices(edge);
for (int ii = 0; ii < pts.Size(); ++ii)
{
GeomPoint gp = new GeomPoint();
gp.Initialize(pts.GetAt(ii));
Vertices.Add(new VertexInfo(gp.GetPoint(), ii, idx, faceIdx));
}
}
private void circleToolStripMenuItem_Click(object sender, EventArgs e)
{
SelectedShapeQuery query = new SelectedShapeQuery();
renderView.QuerySelection(query);
var shape = query.GetSubGeometry();
if (shape == null)
{
return;
}
GeomCurve curve = new GeomCurve();
if (!curve.Initialize(shape))
{
return;
}
if (curve.GetCurveType() != EnumCurveType.CurveType_Circle)
{
var xx = curve.FirstParameter() + curve.LastParameter();
Vector3 pt1 = curve.Value(curve.FirstParameter());
Vector3 pt2 = curve.Value(xx * 0.3);
Vector3 pt3 = curve.Value(xx * 0.6);
var arc = GlobalInstance.BrepTools.MakeArc3Pts(pt1, pt3, pt2);
if (arc != null)
{
GeomCircle circle = new GeomCircle();
circle.Initialize(arc);
var center = circle.GetCenter();
MessageBox.Show(String.Format("Center: {0}, {1}, {2}", center.X, center.Y, center.Z));
}
}
}
public override bool Run(FeatureContext context)
{
LineStyle lineStyle = new LineStyle();
lineStyle.SetLineWidth(0.5f);
lineStyle.SetColor(ColorValue.BLUE);
lineStyle.SetLineWidth(1.5f);
LineStyle lineStyle2 = new LineStyle();
lineStyle2.SetLineWidth(0.5f);
lineStyle2.SetColor(ColorValue.GREEN);
lineStyle2.SetLineWidth(2);
TopoShape arc = GlobalInstance.BrepTools.MakeEllipseArc(Vector3.ZERO, 100, 50, 45, 270, Vector3.UNIT_Z);
context.ShowGeometry(arc);
{
GeomCurve curve = new GeomCurve();
curve.Initialize(arc);
double paramStart = curve.FirstParameter();
double paramEnd = curve.LastParameter();
double step = (paramEnd - paramStart) * 0.1;
for (double uu = paramStart; uu <= paramEnd; uu += step)
{
Vector3 dir = curve.DN(uu, 1);
Vector3 pos = curve.Value(uu);
// 切线
{
TopoShape line = GlobalInstance.BrepTools.MakeLine(pos, pos + dir);
SceneNode node = context.ShowGeometry(line);
node.SetLineStyle(lineStyle);
}
// 法线
{
Vector3 dirN = dir.CrossProduct(Vector3.UNIT_Z);
TopoShape line = GlobalInstance.BrepTools.MakeLine(pos, pos + dirN);
SceneNode node = context.ShowGeometry(line);
node.SetLineStyle(lineStyle2);
}
}
}
return(true);
}
private void curveToolStripMenuItem_Click(object sender, EventArgs e)
{
renderView.SetStandardView(EnumStandardView.SV_Top);
Platform.LineStyle lineStyle = new Platform.LineStyle();
lineStyle.SetLineWidth(0.5f);
lineStyle.SetColor(ColorValue.BLUE);
Platform.LineStyle lineStyle2 = new Platform.LineStyle();
lineStyle2.SetLineWidth(0.5f);
lineStyle2.SetColor(ColorValue.GREEN);
Platform.TopoShape arc = GlobalInstance.BrepTools.MakeEllipseArc(Vector3.ZERO, 100, 50, 45, 270, Vector3.UNIT_Z);
renderView.ShowGeometry(arc, 100);
{
GeomCurve curve = new GeomCurve();
curve.Initialize(arc);
float paramStart = curve.FirstParameter();
float paramEnd = curve.LastParameter();
float step = (paramEnd - paramStart) * 0.1f;
for (float uu = paramStart; uu <= paramEnd; uu += step)
{
Vector3 dir = curve.DN(uu, 1);
Vector3 pos = curve.Value(uu);
// 切线
{
Platform.TopoShape line = GlobalInstance.BrepTools.MakeLine(pos, pos + dir);
Platform.SceneNode node = renderView.ShowGeometry(line, 101);
node.SetLineStyle(lineStyle);
}
// 法线
{
Vector3 dirN = dir.CrossProduct(Vector3.UNIT_Z);
Platform.TopoShape line = GlobalInstance.BrepTools.MakeLine(pos, pos + dirN);
Platform.SceneNode node = renderView.ShowGeometry(line, 101);
node.SetLineStyle(lineStyle2);
}
}
}
TopoShapeProperty property = new TopoShapeProperty();
property.SetShape(arc);
float len = property.EdgeLength();
TextNode text = new TextNode();
text.SetText(String.Format("Arc Length: {0}", len));
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);
}