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在线层上创建格网线

Posted on 2007-01-10 11:53  疯狂大师  阅读(180)  评论(0编辑  收藏  举报

 '经纬度的十进制转换
unction zbzh(x As String) As String
Dim k As String
k = Int(x) + Int((x - Int(x)) * 100) / 60 + Int((x * 100 - Int(x * 100)) * 100) / 3600
zbzh = k
End Function

Private Sub UIButtonControl2_Click()
Dim ff As String
Dim ff1 As Double


Dim minx As Double
Dim miny As Double
Dim maxx As Double
Dim maxy As Double
minx = 116 + (0.5 / 3)
miny = 30.7
maxx = 122
maxy = 35.2

Dim xnum As Integer
Dim ynum As Integer
xnum = (maxx - minx) / (0.5 / 3)
ynum = (maxy - miny) / (0.5 / 3)
 

 

Dim pPDL As IPoint
Dim pPDR As IPoint
Dim pFeatcls As IFeatureClass

   
'纵
For i = 0 To xnum
    Set pPDL = New Point
    pPDL.PutCoords minx + i * 0.5 / 3, miny
    Set pPDR = New Point
    pPDR.PutCoords minx + i * 0.5 / 3, maxy
    Call AddLineElementByTwoPoints(pPDL, pPDR, 1)
Next

'横
For i = 0 To ynum
    Set pPDL = New Point
    pPDL.PutCoords minx, miny + i * 0.5 / 3
    Set pPDR = New Point
    pPDR.PutCoords maxx, miny + i * 0.5 / 3
    Call AddLineElementByTwoPoints(pPDL, pPDR, 1)
Next

 
 

End Sub

Private Sub AddLineElementByTwoPoints(pFromPoint As IPoint, pToPoint As IPoint, LineWidth As Integer)

'pFeatcls.CreateFeature
'
Dim pDoc As IMxDocument, pPageLayout As IPageLayout
Dim pContainer As IGraphicsContainer
Dim pTextElement As ITextElement
Set pDoc = ThisDocument

Dim pHline As IPolyline
Set pHline = New Polyline
pHline.FromPoint = pFromPoint
pHline.ToPoint = pToPoint


Dim pFeatcls As IFeatureClass
 Dim flyr As IFeatureLayer
 Set flyr = pDoc.FocusMap.Layer(0)
 Set pFeatcls = flyr.FeatureClass
 
  Dim pFeature As IFeature
  Set pFeature = pFeatcls.CreateFeature
 
   Set pFeature.Shape = pHline
  pFeature.Store
End Sub