实例介绍
【实例简介】
【实例截图】
【实例截图】
【核心代码】
VERSION 5.00
Begin VB.Form Form1
Caption = "楼梯断面图"
ClientHeight = 3240
ClientLeft = 5685
ClientTop = 4185
ClientWidth = 3720
LinkTopic = "Form1"
ScaleHeight = 3240
ScaleWidth = 3720
Begin VB.CommandButton cmdExit
Caption = "退出(&X)"
Height = 375
Left = 2400
TabIndex = 23
Top = 2760
Width = 1215
End
Begin VB.CommandButton cmdDraw
Caption = "绘图(&D)"
Height = 375
Left = 2400
TabIndex = 22
Top = 2280
Width = 1215
End
Begin VB.CommandButton cmdCal
Caption = "计算(&C)"
Height = 375
Left = 2400
TabIndex = 21
Top = 1800
Width = 1215
End
Begin VB.Frame Frame3
Caption = "楼梯梁参数"
Height = 1455
Left = 120
TabIndex = 14
Top = 1680
Width = 2055
Begin VB.TextBox txtGirderW
Height = 285
Left = 1060
TabIndex = 17
Top = 330
Width = 855
End
Begin VB.TextBox txtGirderH
Height = 285
Left = 1060
TabIndex = 16
Top = 690
Width = 855
End
Begin VB.TextBox txtBoardT
Height = 285
Left = 1060
TabIndex = 15
Top = 1050
Width = 855
End
Begin VB.Label Label9
Caption = "楼梯梁宽"
Height = 255
Left = 240
TabIndex = 20
Top = 360
Width = 855
End
Begin VB.Label Label8
Caption = "楼梯梁高"
Height = 255
Left = 240
TabIndex = 19
Top = 720
Width = 855
End
Begin VB.Label Label7
Caption = "楼板厚"
Height = 255
Left = 240
TabIndex = 18
Top = 1080
Width = 855
End
End
Begin VB.Frame Frame2
Caption = "踏步参数"
Height = 1455
Left = 1680
TabIndex = 7
Top = 120
Width = 1900
Begin VB.TextBox txtStepH
Height = 285
Left = 900
TabIndex = 10
Top = 330
Width = 855
End
Begin VB.TextBox txtStepW
Height = 285
Left = 900
TabIndex = 9
Top = 690
Width = 855
End
Begin VB.TextBox txtStepNum
Height = 285
Left = 900
TabIndex = 8
Top = 1050
Width = 855
End
Begin VB.Label Label6
Caption = "踏步高"
Height = 255
Left = 240
TabIndex = 13
Top = 360
Width = 855
End
Begin VB.Label Label5
Caption = "踏步宽"
Height = 255
Left = 240
TabIndex = 12
Top = 720
Width = 855
End
Begin VB.Label Label4
Caption = "级数"
Height = 255
Left = 240
TabIndex = 11
Top = 1080
Width = 855
End
End
Begin VB.Frame Frame1
Caption = "基点"
Height = 1455
Left = 120
TabIndex = 0
Top = 120
Width = 1455
Begin VB.TextBox txtPtZ
Height = 285
Left = 480
TabIndex = 6
Top = 1050
Width = 855
End
Begin VB.TextBox txtPtY
Height = 285
Left = 480
TabIndex = 4
Top = 690
Width = 855
End
Begin VB.TextBox txtPtX
Height = 285
Left = 480
TabIndex = 2
Top = 330
Width = 855
End
Begin VB.Label Label3
Caption = "Z:"
Height = 255
Left = 240
TabIndex = 5
Top = 1080
Width = 255
End
Begin VB.Label Label2
Caption = "Y:"
Height = 255
Left = 240
TabIndex = 3
Top = 720
Width = 255
End
Begin VB.Label Label1
Caption = "X:"
Height = 255
Left = 240
TabIndex = 1
Top = 360
Width = 255
End
End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit
Dim bCal As Boolean '是否已经进行计算
'存储楼梯上层各点的坐标
Dim ptArr1() As Double
'楼梯下侧各点的坐标
Dim ptArr2(19) As Double
Private Sub cmdCal_Click()
'判断是否缺少参数
Dim objControl As Control
For Each objControl In Form1.Controls
If TypeOf objControl Is TextBox Then
If objControl.Text = "" Then
MsgBox "缺少参数，无法计算！", vbCritical
Exit Sub
End If
End If
Next
'获得计算所需参数值
Dim x0 As Double, y0 As Double '定位基点
Dim s As Double, t As Double, n As Double '踏步的高、宽和级数
Dim b As Double, h As Double, h0 As Double '楼梯梁的宽、高和楼板厚
x0 = txtPtX.Text: y0 = txtPtY.Text
s = txtStepH.Text: t = txtStepW.Text: n = txtStepNum.Text
b = txtGirderW.Text: h = txtGirderH.Text: h0 = txtBoardT.Text
'约束条件
If h0 >= h Or b > 80 Or s >= t Then
MsgBox "输入条件不合要求，请检查参数的合理性！", vbCritical
Exit Sub
End If
ReDim ptArr1(2 * (2 * n 2) - 1)
'计算上半部各点的坐标
ptArr1(0) = x0 - 100: ptArr1(1) = y0
ptArr1(2) = x0: ptArr1(3) = y0
ptArr1(4) = x0: ptArr1(5) = y0 s
Dim i As Integer
For i = 6 To 2 * (2 * n 2) - 3
If i Mod 4 = 2 Then
ptArr1(i) = ptArr1(i - 4) t
ElseIf i Mod 4 = 3 Then
ptArr1(i) = ptArr1(i - 4) s
ElseIf i Mod 4 = 0 Then
ptArr1(i) = ptArr1(i - 2)
ElseIf i Mod 4 = 1 Then
ptArr1(i) = ptArr1(i - 2) s
End If
Next i
ptArr1(2 * (2 * n 2) - 2) = ptArr1(2 * (2 * n 2) - 4) 100
ptArr1(2 * (2 * n 2) - 1) = ptArr1(2 * (2 * n 2) - 3)
'计算下半部各点的坐标
ptArr2(0) = x0 - 100: ptArr2(1) = y0 - h0
ptArr2(2) = x0 - b: ptArr2(3) = y0 - h0
ptArr2(4) = x0 - b: ptArr2(5) = y0 - h
ptArr2(6) = x0: ptArr2(7) = y0 - h
ptArr2(8) = x0: ptArr2(9) = y0 - h0
ptArr2(10) = x0 (n - 1) * t: ptArr2(11) = y0 (n - 1) * s - h0
ptArr2(12) = ptArr1(2 * (2 * n 2) - 4): ptArr2(13) = ptArr1(2 * (2 * n 2) - 3) - h
ptArr2(14) = ptArr2(12) b: ptArr2(15) = ptArr2(13)
ptArr2(16) = ptArr2(14): ptArr2(17) = ptArr2(15) (h - h0)
ptArr2(18) = ptArr1(2 * (2 * n 2) - 2): ptArr2(19) = ptArr1(2 * (2 * n 2) - 1) - h0
'已经计算
bCal = True
End Sub
Private Sub cmdDraw_Click()
'判断是否计算
If bCal = False Then
MsgBox "请先进行计算，再进行绘图！", vbCritical
Exit Sub
End If
On Error Resume Next
' 连接至 AutoCAD 应用程序
Dim acadApp As AcadApplication
Set acadApp = GetObject(, "AutoCAD.Application.16")
If Err Then
Err.Clear
Set acadApp = CreateObject("AutoCAD.Application.16")
If Err Then
MsgBox Err.Description
Exit Sub
End If
End If
' 连接至 AutoCAD 图形
Dim acadDoc As AcadDocument
Set acadDoc = acadApp.ActiveDocument
acadDoc.ModelSpace.AddLightWeightPolyline ptArr1
acadDoc.ModelSpace.AddLightWeightPolyline ptArr2
ZoomAll
acadApp.Visible = True
'绘图完成，要求下一次计算
bCal = False
End Sub
Private Sub cmdExit_Click()
End
End Sub
Private Sub Form_Load()
'默认参数值
txtPtX.Text = 0
txtPtY.Text = 0
txtPtZ.Text = 0
txtStepH.Text = 20
txtStepW.Text = 40
txtStepNum.Text = 10
txtGirderW.Text = 25
txtGirderH.Text = 45
txtBoardT.Text = 15
bCal = False
End Sub
标签： AutoCAD
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