Как да преместите началната точка на отвора по-близо до границата на отвора, за да подобрите производителността
Проблем: Как да преместите началната точка на отвора по-близо до границата на отвора, за да подобрите производителността (CADNET-1340).
Съвети: За да постигнете това, вземете съществата CadHatch от чертежа, задайте необходимите точки с Point2D, изчислете разстоянието и в CadHatchPatternData задайте LineBasePoint за X и Y.
Пример:
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| foreach (CadBaseEntity entity in cadImage.Entities) | |
| { | |
| if (entity.TypeName == CadEntityTypeName.HATCH) | |
| { | |
| CadHatch hatch = (CadHatch)entity; | |
| if (hatch.PatternDefinitions.Count > 0) | |
| { | |
| Point2D firstPoint = new Point2D(hatch.PatternDefinitions[0].LineBasePoint.X, hatch.PatternDefinitions[0].LineBasePoint.Y); | |
| if (hatch.BoundaryPaths[0].BoundaryPath[0].GetType() == typeof(CadPolylineBoundaryPath)) | |
| { | |
| CadPolylineBoundaryPath polyline = (CadPolylineBoundaryPath)(hatch.BoundaryPaths[0].BoundaryPath[0]); | |
| firstPoint = polyline.Vertices[0]; | |
| } | |
| else | |
| { | |
| CadEdgeBoundaryPath edgePath = (CadEdgeBoundaryPath)(hatch.BoundaryPaths[0].BoundaryPath[0]); | |
| if (edgePath.Objects[0].GetType() == typeof(CadBoundaryPathLine)) | |
| { | |
| CadBoundaryPathLine line = (CadBoundaryPathLine)edgePath.Objects[0]; | |
| firstPoint = line.FirstPoint; | |
| } | |
| if (edgePath.Objects[0].GetType() == typeof(CadBoundaryPathCircularArc)) | |
| { | |
| // TODO | |
| } | |
| if (edgePath.Objects[0].GetType() == typeof(CadBoundaryPathCircularEllipse)) | |
| { | |
| // TODO | |
| } | |
| if (edgePath.Objects[0].GetType() == typeof(CadBoundaryPathSpline)) | |
| { | |
| // TODO | |
| } | |
| } | |
| bool requiresShift = false; | |
| double distanceX = 0, distanceY = 0; | |
| if (Math.Abs(hatch.PatternDefinitions[0].LineBasePoint.X - firstPoint.X) > 20000 | |
| || Math.Abs(hatch.PatternDefinitions[0].LineBasePoint.Y - firstPoint.Y) > 20000) | |
| { | |
| requiresShift = true; | |
| distanceX = hatch.PatternDefinitions[0].LineBasePoint.X - firstPoint.X; | |
| distanceY = hatch.PatternDefinitions[0].LineBasePoint.Y - firstPoint.Y; | |
| } | |
| if (requiresShift) | |
| { | |
| foreach (CadHatchPatternData d in hatch.PatternDefinitions) | |
| { | |
| d.LineBasePoint.X -= distanceX; | |
| d.LineBasePoint.Y -= distanceY; | |
| } | |
| } | |
| } | |
| } | |
| } |