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发表于 2015-6-6 16:09:00
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Option Explicit
Sub Example_AppendInnerLoop()
' This example creates an associative hatch in model space.
Dim hatchObj As AcadHatch
Dim patternName As String
Dim PatternType As Long
Dim bAssociativity As Boolean
' Define the hatch
patternName = "Solid"
PatternType = 0
bAssociativity = True
' Create the associative Hatch object
Set hatchObj = ThisDrawing.ModelSpace.AddHatch(PatternType, patternName, bAssociativity)
' Create the outer loop for the hatch.
' An arc and a line are used to create a closed loop.
Dim outerLoop(0 To 1) As AcadEntity
Dim center(0 To 2) As Double
Dim radius As Double
Dim startAngle As Double
Dim endAngle As Double
center(0) = 5: center(1) = 3: center(2) = 0
radius = 3
startAngle = 0
endAngle = 3.141592
Set outerLoop(0) = ThisDrawing.ModelSpace.AddArc(center, radius, startAngle, endAngle)
Set outerLoop(1) = ThisDrawing.ModelSpace.AddLine(outerLoop(0).StartPoint, outerLoop(0).EndPoint)
' Append the outer loop to the hatch object
hatchObj.AppendOuterLoop (outerLoop)
' Append a circle as the inner loop for the hatch.
Dim innerLoop(1) As AcadEntity
center(0) = 5: center(1) = 4.5: center(2) = 0
radius = 1
Set innerLoop(0) = ThisDrawing.ModelSpace.AddArc(center, radius, startAngle, endAngle)
Set innerLoop(1) = ThisDrawing.ModelSpace.AddLine(innerLoop(0).StartPoint, innerLoop(0).EndPoint)
hatchObj.AppendInnerLoop (innerLoop)
Dim innerLoop2(1) As AcadEntity
center(0) = 3.3: center(1) = 3.3: center(2) = 0
radius = 1
Set innerLoop2(0) = ThisDrawing.ModelSpace.AddArc(center, radius, startAngle, endAngle)
Set innerLoop2(1) = ThisDrawing.ModelSpace.AddLine(innerLoop2(0).StartPoint, innerLoop2(0).EndPoint)
hatchObj.AppendInnerLoop (innerLoop2)
' Evaluate and display the hatch
hatchObj.Evaluate
ThisDrawing.Regen True
End Sub
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