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CenterMark.rvb
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CenterMark.rvb
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'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
' CenterMark.rvb -- October 2013
' If this code works, it was written by Dale Fugier.
' If not, I don't know who wrote it.
' Works with Rhinoceros 5.
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Option Explicit
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
' Draws a center mark
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Sub CenterMark
' Local constants
Const RH_CRV = &h4
' Local variables
Dim strCurve, arrPlane, blnIsCircle, dblSize
Dim arrCenter, arrDir, arrStart, arrEnd
Dim arrLines(1)
' Hey, only Rhinoceros 5...
If (Rhino.ExeVersion < 5) Then
Call Rhino.Print("This script requires Rhinoceros 5 or greater.")
Exit Sub
End If
' Select a circle
strCurve = Rhino.GetObject("Select an arc or circle to add center mark", RH_CRV)
If IsNull(strCurve) Then Exit Sub
' Is it really a circle?
If Rhino.IsCircle(strCurve) Then
blnIsCircle = True
ElseIf Rhino.IsArc(strCurve) Then
blnIsCircle = False
Else
Call Rhino.Print("Curve is not an arc or circle.")
Exit Sub
End If
' Is the circle planar to the active construction plane?
arrPlane = Rhino.ViewCPlane
If Not Rhino.IsCurveInPlane(strCurve, arrPlane) Then
Call Rhino.Print("Curve does not lie on the active construction plane.")
Exit Sub
End If
Call Rhino.EnableRedraw(False)
' Get the center mark size of the current dimension style
dblSize = Rhino.DimStyleCentermarkSize(Rhino.CurrentDimStyle)
' Get the center point of the circle
If blnIsCircle Then
arrCenter = Rhino.CircleCenterPoint(strCurve)
Else
arrCenter = Rhino.ArcCenterPoint(strCurve)
End If
' Create a center mark line in the x-axis direction
arrDir = Rhino.VectorScale(arrPlane(1), dblSize)
arrStart = Rhino.PointSubtract(arrCenter, arrDir)
arrEnd = Rhino.PointAdd(arrCenter, arrDir)
arrLines(0) = Rhino.AddLine(arrStart, arrEnd)
' Create a center mark line in the y-axis direction
arrDir = Rhino.VectorScale(arrPlane(2), dblSize)
arrStart = Rhino.PointSubtract(arrCenter, arrDir)
arrEnd = Rhino.PointAdd(arrCenter, arrDir)
arrLines(1) = Rhino.AddLine(arrStart, arrEnd)
Call Rhino.AddObjectsToGroup(arrLines, Rhino.AddGroup)
Call Rhino.EnableRedraw(True)
End Sub
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
' Draws a center line
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Sub CenterLine
' Local constants
Const RH_CRV = &h4
' Local variables
Dim strCurve, arrPlane, blnIsCircle, dblSize
Dim arrCenter, dblRadius, arrDir, arrStart, arrEnd
Dim arrLines(5)
' Hey, only Rhinoceros 5...
If (Rhino.ExeVersion < 5) Then
Call Rhino.Print("This script requires Rhinoceros 5 or greater.")
Exit Sub
End If
' Select a circle
strCurve = Rhino.GetObject("Select an arc or circle to add center mark", RH_CRV)
If IsNull(strCurve) Then Exit Sub
' Is it really a circle?
If Rhino.IsCircle(strCurve) Then
blnIsCircle = True
ElseIf Rhino.IsArc(strCurve) Then
blnIsCircle = False
Else
Call Rhino.Print("Curve is not an arc or circle.")
Exit Sub
End If
' Is the circle planar to the active construction plane?
arrPlane = Rhino.ViewCPlane
If Not Rhino.IsCurveInPlane(strCurve, arrPlane) Then
Call Rhino.Print("Curve does not lie on the active construction plane.")
Exit Sub
End If
Call Rhino.EnableRedraw(False)
' Get the center mark size of the current dimension style
dblSize = Rhino.DimStyleCentermarkSize(Rhino.CurrentDimStyle)
' Get the center point of the circle
If blnIsCircle Then
arrCenter = Rhino.CircleCenterPoint(strCurve)
dblRadius = Rhino.CircleRadius(strCurve)
Else
arrCenter = Rhino.ArcCenterPoint(strCurve)
dblRadius = Rhino.ArcRadius(strCurve)
End If
' Create center mark line in the x-axis direction
arrDir = Rhino.VectorScale(arrPlane(1), dblSize)
arrStart = Rhino.PointSubtract(arrCenter, arrDir)
arrEnd = Rhino.PointAdd(arrCenter, arrDir)
arrLines(0) = Rhino.AddLine(arrStart, arrEnd)
' Create first extension line in the x-axis direction
arrDir = Rhino.VectorScale(arrPlane(1), dblRadius + dblSize)
arrStart = Rhino.PointSubtract(arrCenter, arrDir)
arrDir = Rhino.VectorScale(arrPlane(1), dblSize + dblSize)
arrEnd = Rhino.PointSubtract(arrCenter, arrDir)
arrLines(1) = Rhino.AddLine(arrStart, arrEnd)
' Create second extension line in the x-axis direction
arrDir = Rhino.VectorScale(arrPlane(1), dblSize + dblSize)
arrStart = Rhino.PointAdd(arrCenter, arrDir)
arrDir = Rhino.VectorScale(arrPlane(1), dblRadius + dblSize)
arrEnd = Rhino.PointAdd(arrCenter, arrDir)
arrLines(2) = Rhino.AddLine(arrStart, arrEnd)
' Create center mark line in the y-axis direction
arrDir = Rhino.VectorScale(arrPlane(2), dblSize)
arrStart = Rhino.PointSubtract(arrCenter, arrDir)
arrEnd = Rhino.PointAdd(arrCenter, arrDir)
arrLines(3) = Rhino.AddLine(arrStart, arrEnd)
' Create first extension line in the y-axis direction
arrDir = Rhino.VectorScale(arrPlane(2), dblRadius + dblSize)
arrStart = Rhino.PointSubtract(arrCenter, arrDir)
arrDir = Rhino.VectorScale(arrPlane(2), dblSize + dblSize)
arrEnd = Rhino.PointSubtract(arrCenter, arrDir)
arrLines(4) = Rhino.AddLine(arrStart, arrEnd)
' Create second extension line in the y-axis direction
arrDir = Rhino.VectorScale(arrPlane(2), dblSize + dblSize)
arrStart = Rhino.PointAdd(arrCenter, arrDir)
arrDir = Rhino.VectorScale(arrPlane(2), dblRadius + dblSize)
arrEnd = Rhino.PointAdd(arrCenter, arrDir)
arrLines(5) = Rhino.AddLine(arrStart, arrEnd)
Call Rhino.AddObjectsToGroup(arrLines, Rhino.AddGroup)
Call Rhino.EnableRedraw(True)
End Sub