public Bending(Bending previousB)
{
Orientation = previousB.Orientation;
Index = previousB.Index;
Direction = previousB.Direction;
Angle = previousB.Angle;
Radius = previousB.Radius;
Length = previousB.Length;
}
private void DrawUnfoldGroup(BendingGroup bends)
{
renderViewDraw.ClearScene();
#region 绘制底面
TopoShape baseShape = GlobalInstance.BrepTools.FillFace(bends.Vertexes);
SceneManager sceneMgr = renderViewDraw.SceneManager;
SceneNode root = GlobalInstance.TopoShapeConvert.ToSceneNode(baseShape, 0.1f);
sceneMgr.AddNode(root);
#endregion
#region 逆时针方向依次折弯
Queue <Vector3> vertexQueue = new Queue <Vector3>(bends.Vertexes);
for (int i = 0; i < vertexQueue.Count(); i++)
{
var sPt = vertexQueue.Dequeue();
var ePt = vertexQueue.Peek();
vertexQueue.Enqueue(sPt);
var line = GlobalInstance.BrepTools.MakeLine(sPt, ePt);
var face = baseShape;
var groupEdge = from m in bends.Bendings
where m.Orientation == Math.Round(((ePt - sPt).Y >= 0 ? (ePt - sPt).AngleBetween(Vector3.UNIT_X) : (360 - (ePt - sPt).AngleBetween(Vector3.UNIT_X))), 3)
orderby m.Index
select m;
foreach (var bending in groupEdge)
{
if (face == null || line == null)
{
return;
}
if (face.GetShapeType() != EnumTopoShapeType.Topo_FACE || line.GetShapeType() != EnumTopoShapeType.Topo_EDGE)
{
break;
}
BendHelper helper = new BendHelper();
var temp = new Bending(bending);
temp.Length += temp.Radius * temp.Angle * Math.PI / 180;
temp.Angle = 0;
helper = BendUp(face, line, temp);
ElementId id = new ElementId(bending.Index);
SceneNode node = GlobalInstance.TopoShapeConvert.ToSceneNode(helper.Sweep, 0.1f);
node.SetId(id);
sceneMgr.AddNode(node);
face = helper.EdFace;
line = helper.EdLine;
}
}
#endregion
renderViewDraw.FitAll();
renderViewDraw.RequestDraw(EnumRenderHint.RH_LoadScene);
}
public void Add(Bending bending)
{
#region 总体编号
if (Bendings.Count() == 0)
{
bending.Index = 0;
}
else
{
bending.Index = Bendings.Last().Index + 1;
}
Bendings.Add(bending);
#endregion
#region 方向分别编号
//switch (bending.Orientation)
//{
// case EnumEdge.Edge_1:
// var group1 = from bend in Bendings
// where bend.Orientation == EnumEdge.Edge_1
// select bend;
// if (group1.Count() == 0)
// {
// bending.Index = 0;
// }
// else
// {
// bending.Index = group1.Last().Index + 1;
// }
// Bendings.Add(bending);
// break;
// case EnumEdge.Edge_2:
// var group2 = from bend in Bendings
// where bend.Orientation == EnumEdge.Edge_2
// select bend;
// if (group2.Count() == 0)
// {
// bending.Index = 0;
// }
// else
// {
// bending.Index = group2.Last().Index + 1;
// }
// Bendings.Add(bending);
// break;
// case EnumEdge.Edge_3:
// var group3 = from bend in Bendings
// where bend.Orientation == EnumEdge.Edge_3
// select bend;
// if (group3.Count() == 0)
// {
// bending.Index = 0;
// }
// else
// {
// bending.Index = group3.Last().Index + 1;
// }
// Bendings.Add(bending);
// break;
// case EnumEdge.Edge_4:
// var group4 = from bend in Bendings
// where bend.Orientation == EnumEdge.Edge_4
// select bend;
// if (group4.Count() == 0)
// {
// bending.Index = 0;
// }
// else
// {
// bending.Index = group4.Last().Index + 1;
// }
// Bendings.Add(bending);
// break;
// default:
// break;
//}
#endregion
}
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 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
}
