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 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 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 void BtnDown_Click(object sender, EventArgs e)
{
//Get selected shape
SelectedShapeQuery context = new SelectedShapeQuery();
renderViewDraw.QuerySelection(context);
var face = context.GetGeometry();
var line = context.GetSubGeometry();
if (face == null || line == null)
{
return;
}
if (face.GetShapeType() != EnumTopoShapeType.Topo_FACE || line.GetShapeType() != EnumTopoShapeType.Topo_EDGE)
{
return;
}
//记录输入参数
Bending bending = new Bending()
{
Direction = EnumDir.Edge_DOWN,
Angle = Convert.ToDouble(txtAngle.Text),
Radius = Convert.ToDouble(txtRadius.Text),
Length = Convert.ToDouble(txtLength.Text)
};
GeomCurve curve = new GeomCurve();
curve.Initialize(line);
Vector3 dirL = curve.DN(curve.FirstParameter(), 1);
if (dirL.Y >= 0)
{
bending.Orientation = Math.Round(dirL.AngleBetween(Vector3.UNIT_X), 3);
}
else
{
bending.Orientation = Math.Round(360 - dirL.AngleBetween(Vector3.UNIT_X), 3);
}
//if (dirL.X == 1)
//{
// bending.Orientation = EnumEdge.Edge_1;
//}
//else if (dirL.Y == 1)
//{
// bending.Orientation = EnumEdge.Edge_2;
//}
//else if (dirL.X == -1)
//{
// bending.Orientation = EnumEdge.Edge_3;
//}
//else
//{
// bending.Orientation = EnumEdge.Edge_4;
//}
TopoShape sweep = BendDown(face, line, bending).Sweep;
bendings.Add(bending);
#region 渲染
ElementId faceId = new ElementId(bending.Index + shapeId);
ElementId edgeId = new ElementId(bending.Index);
SceneManager sceneMgr = renderViewDraw.SceneManager;
SceneNode rootNode = GlobalInstance.TopoShapeConvert.ToSceneNode(sweep, 0.1f);
SceneNode faceNode = GlobalInstance.TopoShapeConvert.ToSceneNode(face, 0.1f);
SceneNode edgeNode = GlobalInstance.TopoShapeConvert.ToSceneNode(line, 0.1f);
faceNode.SetId(faceId);
faceNode.SetVisible(false);
edgeNode.SetId(edgeId);
edgeNode.SetVisible(false);
if (rootNode != null)
{
sceneMgr.AddNode(rootNode);
sceneMgr.AddNode(faceNode);
sceneMgr.AddNode(edgeNode);
}
renderViewDraw.FitAll();
renderViewDraw.RequestDraw(EnumRenderHint.RH_LoadScene);
#endregion
}