- 积分
- 236
- 明经币
- 个
- 注册时间
- 2005-5-16
- 在线时间
- 小时
- 威望
-
- 金钱
- 个
- 贡献
-
- 激情
-
|
楼主 |
发表于 2005-5-16 14:16:00
|
显示全部楼层
下面就是绘制螺母的程序,dwz为不为0时,画出的图形只有个六棱柱,倒角倒不出来,但是dwz为0时,画出的图形就是对的
Public Function LMH(d, d1, Da, Dw, e, s, m, p, bl As Double, dwx, dwy, dwz As Double)
'变量说明:D为螺母公称直径,Da为螺母内部倒角直径,Dw为螺母与螺栓联结时靠螺栓端的螺母外部倒角直径 'e为螺母的外径,s为螺母与螺栓联结时背靠螺栓端的螺母外部倒角直径 'm为螺母的厚度 'p为内螺纹的螺距 'bl为绘图比例
Dim objBoltT As Acad3DSolid, objCone As Acad3DSolid, objCylinder As Acad3DSolid Dim xc As Integer Dim yu zh = Int(m / p) yu = m - zh * p xc = 2 * (2 * Int(m / p) + 1) - 3 Da = bl * Da '设置尺寸符合绘图比例 d = bl * d Dw = bl * Dw d1 = bl * d1 m = bl * m e = bl * e s = bl * s p = bl * p yu = yu * bl '创建六边形 Dim objPline As AcadLWPolyline Dim ptCen(0 To 2) As Double ptCen(0) = dwx: ptCen(1) = dwy: ptCen(2) = dwz Set objPline = AddPolygon(ptCen, 6, e / 2) ' (中心,边数,边长) '创建六棱柱 Dim objRegion As AcadRegion Set objRegion = PlToRegion(objPline) Set objBoltT = ThisDrawing.ModelSpace.AddExtrudedSolid(objRegion, m, 0) objRegion.Delete ' Dim ptTemp(0 To 2) As Double ' ptTemp(0) = 20: ptTemp(1) = 0: ptTemp(2) = 0 ' objBoltT.Rotate3D ptCen, ptTemp, -PI / 2 ' ThisDrawing.ModelSpace.AddLine ptCen, ptTemp '创建圆锥体(原点是形体的中心,而不是底面的中心) Dim ptTo(0 To 2) As Double ptTo(0) = dwx: ptTo(1) = dwy: ptTo(2) = dwz + (Tan(30 * 3.14 / 180) * Dw * 0.5 + m) * 0.5 Set objCone = ThisDrawing.ModelSpace.AddCone(ptCen, Dw * 0.5 + m / Tan(30 * 3.14 / 180), Tan(30 * 3.14 / 180) * Dw * 0.5 + m) '(中心,半径,高度) objCone.Move ptCen, ptTo '确保三个实体的正确位置 '创建圆柱体 ptTo(0) = dwx: ptTo(1) = dwy: ptTo(2) = dwz + m Set objCylinder = ThisDrawing.ModelSpace.AddCylinder(ptCen, e, 2 * m) objCylinder.Move ptCen, ptTo '布尔运算的第一步:圆柱体减去圆锥体 objCylinder.Boolean acSubtraction, objCone ptTo(0) = dwx + 0: ptTo(1) = dwy - 10: ptTo(2) = dwz + 0 objCylinder.Rotate3D ptTo, ptCen, PI ptTo(0) = dwx: ptTo(1) = dwy: ptTo(2) = dwz + m objCylinder.Move ptCen, ptTo '布尔运算的第二步:六棱柱减去上一步得到的对象 objBoltT.Boolean acSubtraction, objCylinder '创建圆锥体(原点是形体的中心,而不是底面的中心) ptTo(0) = dwx: ptTo(1) = dwy: ptTo(2) = dwz + (Tan(30 * 3.14 / 180) * s * 0.5 + m) * 0.5 Set objCone = ThisDrawing.ModelSpace.AddCone(ptCen, s * 0.5 + m / Tan(30 * 3.14 / 180), Tan(30 * 3.14 / 180) * s * 0.5 + m) '(中心,半径,高度) objCone.Move ptCen, ptTo '确保三个实体的正确位置 '创建圆柱体 ptTo(0) = dwx: ptTo(1) = dwy: ptTo(2) = dwz + m Set objCylinder = ThisDrawing.ModelSpace.AddCylinder(ptCen, e, 2 * m) objCylinder.Move ptCen, ptTo '布尔运算的第一步:圆柱体减去圆锥体 objCylinder.Boolean acSubtraction, objCone '布尔运算的第二步:六棱柱减去上一步得到的对象 objBoltT.Boolean acSubtraction, objCylinder '创建圆锥体(原点是形体的中心,而不是底面的中心)*******倒角
ptTo(0) = dwx: ptTo(1) = dwy: ptTo(2) = dwz + (d / 2) * 0.5 Set objCone = ThisDrawing.ModelSpace.AddCone(ptCen, d / 2, d / 2) '(中心,半径,高度) objCone.Move ptCen, ptTo '确保三个实体的正确位置 '布尔运算 objBoltT.Boolean acSubtraction, objCone
'创建圆锥体(原点是形体的中心,而不是底面的中心)*******倒角
ptTo(0) = dwx: ptTo(1) = dwy: ptTo(2) = dwz + (Da / 2) * 0.5 Set objCone = ThisDrawing.ModelSpace.AddCone(ptCen, Da / 2, Da / 2) '(中心,半径,高度) objCone.Move ptCen, ptTo '确保三个实体的正确位置 ptTo(0) = dwx: ptTo(1) = dwy - 10: ptTo(2) = dwz objCone.Rotate3D ptTo, ptCen, PI ptTo(0) = dwx: ptTo(1) = dwy: ptTo(2) = dwz + m objCone.Move ptCen, ptTo '布尔运算 objBoltT.Boolean acSubtraction, objCone
End Function |
|