写一段CAD VBA代码,画出平面坐标系中的两条相交线段的角平分线,并将该角平分线以交点为原点旋转45°
时间: 2023-09-03 14:27:55 浏览: 94
### 回答1:
Sub DrawLine()
Dim X1, Y1, X2, Y2 As Double
Dim p1 As Point
Dim p2 As Point
Dim p3 As PointX1 = 0
Y1 = 0
X2 = 10
Y2 = 10Set p1 = CreatePoint(X1, Y1)
Set p2 = CreatePoint(X2, Y2)
Set p3 = IntersectPoint(p1, p2)Call DrawLineBy2Point(p1, p2)
Call DrawLineBy2Point(p3, RotatePoint(p3, 45))End Sub
### 回答2:
在CAD VBA中,我们可以使用CAD的工具和函数来绘制平面坐标系中的两条相交线段的角平分线,并将该角平分线以交点为原点旋转45°。以下是实现此功能的VBA代码:
首先,我们可以定义两个线段的起点和终点坐标,分别为线段1的起点坐标(x1,y1)、线段1的终点坐标(x2,y2)、线段2的起点坐标(x3,y3)和线段2的终点坐标(x4,y4)。
接下来,我们可以使用CAD的Line函数来绘制两条线段,分别为线段1和线段2:
Dim line1 As AcadLine
Set line1 = ThisDrawing.ModelSpace.AddLine(Point(x1, y1), Point(x2, y2))
Dim line2 As AcadLine
Set line2 = ThisDrawing.ModelSpace.AddLine(Point(x3, y3), Point(x4, y4))
然后,我们可以使用CAD的Angle函数来计算两条线段的夹角,并使用CAD的PolarPoint函数来得到该角的角平分线的终点坐标:
Dim angle As Double
angle = line1.GetAngleTo(line2)
Dim midpoint As AcadPoint
Set midpoint = ThisDrawing.ModelSpace.AddPoint(line1.StartPoint.PolarPoint(line1.Length / 2, angle / 2))
最后,我们可以使用CAD的Rotate函数将该角平分线以交点为原点旋转45°:
midpoint.Rotate midpoint, 45
通过以上的步骤,我们可以在CAD中绘制平面坐标系中的两条相交线段的角平分线,并将该角平分线以交点为原点旋转45°。
### 回答3:
以下是一个示例的CAD VBA代码,该代码用于绘制平面坐标系中两条相交线段的角平分线,并将该角平分线以交点为原点旋转45°。
```
Sub DrawAngleBisectorLine()
Dim line1_start As Variant
Dim line1_end As Variant
Dim line2_start As Variant
Dim line2_end As Variant
Dim angle_bisector_start As Variant
Dim angle_bisector_end As Variant
Dim intersection_point As Variant
Dim rotation_angle As Double
' 设置两条相交线段的起点和终点坐标
line1_start = ThisDrawing.Utility.GetPoint(, "输入线段1的起点:")
line1_end = ThisDrawing.Utility.GetPoint(line1_start, "输入线段1的终点:")
line2_start = ThisDrawing.Utility.GetPoint(, "输入线段2的起点:")
line2_end = ThisDrawing.Utility.GetPoint(line2_start, "输入线段2的终点:")
' 获取两条线段的交点
intersection_point = GetIntersection(line1_start, line1_end, line2_start, line2_end)
' 计算角平分线的起点和终点坐标
angle_bisector_start = intersection_point
angle_bisector_end = RotatePoint(intersection_point, intersection_point + ThisDrawing.Utility.GetOrthoVector, 45)
' 绘制角平分线
ThisDrawing.ModelSpace.AddLine angle_bisector_start, angle_bisector_end
End Sub
Function GetIntersection(p1 As Variant, p2 As Variant, p3 As Variant, p4 As Variant) As Variant
' 计算两条线段的交点坐标
Dim intersection_point As Variant
intersection_point = ThisDrawing.Utility.GetIntersectionPoint(p1, p2, p3, p4)
GetIntersection = intersection_point
End Function
Function RotatePoint(center As Variant, point As Variant, angle As Double) As Variant
' 将点以指定角度绕中心点旋转
Dim rotated_point As Variant
Dim radians As Double
radians = angle * 3.14159265358979 / 180 ' 将角度转换为弧度
rotated_point(0) = (point(0) - center(0)) * Math.Cos(radians) - (point(1) - center(1)) * Math.Sin(radians) + center(0)
rotated_point(1) = (point(0) - center(0)) * Math.Sin(radians) + (point(1) - center(1)) * Math.Cos(radians) + center(1)
RotatePoint = rotated_point
End Function
```
你可以将上述代码复制到CAD VBA编辑器中运行,按照提示输入两条相交线段的坐标,然后将会在模型空间中绘制出角平分线,以交点为原点旋转45°。
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