AutoCAD VB.NET: 在斜多线段上创建不小于2米宽的台阶
您可以使用AutoCAD的VB.NET API来创建不小于2米宽的台阶。以下是一种实现方式:
- 首先,您需要获取所选斜多线段的起点和终点坐标。
Dim startPoint As Point3d = selectedPolyline.StartPoint
Dim endPoint As Point3d = selectedPolyline.EndPoint
- 然后,计算斜多线段的长度。
Dim length As Double = startPoint.DistanceTo(endPoint)
- 接下来,根据台阶的宽度(至少2米)和所选斜多线段的长度,计算台阶的数量。
Dim stepWidth As Double = 2 ' 台阶宽度(2米)
Dim stepCount As Integer = Math.Floor(length / stepWidth)
- 然后,计算每个台阶的高度。
Dim stepHeight As Double = 0.2 ' 台阶高度(0.2米)
- 现在,循环创建每个台阶的多段线。
For i As Integer = 0 To stepCount - 1
Dim stepStartPoint As Point3d = startPoint + ((endPoint - startPoint) / stepCount) * i
Dim stepEndPoint As Point3d = startPoint + ((endPoint - startPoint) / stepCount) * (i + 1)
Dim stepPolyline As New Polyline()
stepPolyline.AddVertexAt(0, stepStartPoint, 0, 0, 0)
stepPolyline.AddVertexAt(1, New Point2d(stepEndPoint.X, stepEndPoint.Y), 0, 0, 0)
stepPolyline.Closed = True
' 将台阶添加到模型空间
Dim currentSpace As BlockTableRecord = CType(transactionManager.CurrentSpaceId.GetObject(OpenMode.ForWrite), BlockTableRecord)
currentSpace.AppendEntity(stepPolyline)
transactionManager.AddNewlyCreatedDBObject(stepPolyline, True)
Next
- 最后,提交事务并刷新显示。
transactionManager.TransactionCommit()
editor.Regen()
请注意,以上代码仅为示例,您可能需要根据实际需求进行适当的修改和调整。
原文地址: https://www.cveoy.top/t/topic/mPwa 著作权归作者所有。请勿转载和采集!