📄 集思学院 - mapx教程 第4章.mht
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<DIV>=BC=D3=C8=EB=C8=D5=C6=DA: 2002-03-24</DIV>
<DIV>=CC=FB=D7=D3: 82 <IMG class=3Dinlineimg =
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<TD class=3Dalt1><!-- message, attachments, sig --><!-- icon and =
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<DIV class=3Dsmallfont><IMG class=3Dinlineimg alt=3D=C4=AC=C8=CF=20
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<STRONG>mapx=BD=CC=B3=CC =B5=DA4=D5=C2</STRONG> </DIV>
<HR style=3D"COLOR: #d1d1e1" SIZE=3D1>
<!-- / icon and title --><!-- message -->
<DIV>=B5=DA=CB=C4=D5=C2 Features =BA=CD =
Selections<BR>=B8=C5=CA=F6<BR>Selections =BA=CD Features=20
=
=B6=D4=CF=F3=B5=C4=B7=BD=B7=A8=CA=B9=C4=FA=B5=C3=D2=D4=A1=B0=B1=EA=BC=C7=A1=
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Head Bay, Brooklyn =D6=DC=CE=A7 5=20
=
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=20
=
=BB=F9=B1=BE=B8=C5=C4=EE<BR>=CA=B2=C3=B4=CA=C7=B5=D8=CD=BC=CD=BC=D4=AA=A3=
=BF<BR>=B5=D8=CD=BC=CD=BC=D4=AA=CA=C7=B5=D8=CD=BC=C9=CF=B5=C4=B5=D8=C0=ED=
=B6=D4=CF=F3=A3=AC=C0=FD=C8=E7=B5=E3=A1=A2=CF=DF=BB=F2=C7=F8=D3=F2=A1=A3=C0=
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MapX =D6=D0=A3=AC=B5=D8=CD=BC=CD=BC=D4=AA=B1=ED=CA=BE=CE=AA =
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=D6=D0=A3=AC=D7=E9=B3=C9=B5=D8=CD=BC=B5=C4=B2=BB=CD=AC=CD=BC=B2=E3=D6=D0=B5=
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=B5=C4=CD=BC=D4=AA=A1=A3=C0=FD=C8=E7=A3=AC=A1=B0US =
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=BF=B8=F6=D6=DD=A3=AC=A1=B0US=20
=
Highways=A1=B1=CD=BC=B2=E3=CA=B9=D3=C3=CF=DF=CD=BC=D4=AA=B1=ED=CA=BE=D6=F7=
=D2=AA=B5=C4=C3=C0=B9=FA=B9=AB=C2=B7=A3=AC=A1=B0US =
Capitols=A1=B1=CD=BC=B2=E3=CA=B9=D3=C3=B5=E3=CD=BC=D4=AA=B1=ED=CA=BE=C3=BF=
=B8=F6=D6=DD=B5=C4=CA=D7=B8=AE=B3=C7=CA=D0=A1=A3=D4=DA MapX=20
=
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=BE=A3=AC=C4=C7=C3=B4=CA=B9=D3=C3 Selection =
=BC=AF=BA=CF=A1=A3<BR>=CA=B2=C3=B4=CA=C7=20
Selection =BC=AF=BA=CF=A3=BF<BR>=BA=CD Features =
=BC=AF=BA=CF=C0=E0=CB=C6=A3=ACSelection =BC=AF=BA=CF=D2=B2=CA=C7 Feature =
=B6=D4=CF=F3=B5=C4=BC=AF=BA=CF=A1=A3=B5=AB=CA=C7=A3=ACSelection=20
=BC=AF=BA=CF=B1=ED=CA=BE=B5=B1=C7=B0=D2=D1=D1=A1=D6=D0=B5=C4 =
Feature =
=B6=D4=CF=F3=A1=A3=C3=BF=B8=F6=CD=BC=B2=E3=B6=D4=CF=F3=B6=BC=D3=D0=D7=D4=BC=
=BA=B5=C4 Selection=20
=
=BC=AF=BA=CF=A3=A8Layer.Selection=A3=A9=A1=A3=B8=F9=BE=DD=C4=C7=D0=A9=D2=D1=
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=D7=D4=B6=AF=B8=DF=C1=C1=CF=D4=CA=BE=D4=DA Selection =
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=DA =CA=B9=D3=C3=20
Features =BC=AF=BA=CF<BR>Features =BC=AF=BA=CF=C0=E0=CB=C6=D3=DA =
Selection =
=BC=AF=BA=CF=A3=AC=D2=F2=CE=AA=C1=BD=B8=F6=BC=AF=BA=CF=B6=BC=CA=C7 =
Feature=20
=B6=D4=CF=F3=B5=C4=BC=AF=BA=CF=A1=A3=B5=AB=CA=C7=A3=ACFeatures =
=BC=AF=BA=CF=D3=EB Selection =
=BC=AF=BA=CF=B8=F7=D3=D0=D2=BB=D7=E9=B2=BB=CD=AC=B5=C4=B7=BD=B7=A8=BA=CD=CA=
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=D0=D0=CE=AA=D2=B2=B2=BB=CD=AC=A1=A3=D4=DA=20
Selections =
=BC=AF=BA=CF=D6=D0=D7=D4=B6=AF=B8=DF=C1=C1=CF=D4=CA=BE=D1=A1=D6=D0=B5=C4=CD=
=BC=D4=AA=A3=AC=B6=F8=D4=DA Features =
=BC=AF=BA=CF=D6=D0=B2=BB=BB=E1=CD=BB=B3=F6=CF=D4=CA=BE=CD=BC=D4=AA=A1=A3<=
BR>=C8=A1=B5=C3=CD=BC=B2=E3=D6=D0=B5=C4=CD=BC=D4=AA<BR>=D4=DA=CA=B9=D3=C3=
=20
Features =
=BC=AF=BA=CF=C7=B0=B1=D8=D0=EB=CF=C8=B4=B4=BD=A8=BC=AF=BA=CF=A1=A3=BF=C9=D2=
=D4=D3=C3 Layer =B6=D4=CF=F3=B7=BD=B7=A8=B4=B4=BD=A8 Feature =
=B6=D4=CF=F3=B5=C4=BC=AF=BA=CF=A1=A3<BR>=D2=D4=CF=C2 Layers=20
=
=BC=AF=BA=CF=B5=C4=B7=BD=B7=A8=CC=E1=B9=A9=C1=CB=B6=E0=D6=D6=CD=BE=BE=B6=C0=
=B4=C8=A1=B5=C3 Features =
=BC=AF=BA=CF=A1=A3<BR><BR><BR><BR><BR><BR><BR>=B7=BD=B7=A8 =C3=E8=CA=F6 =
=B4=FA=C2=EB=CA=BE=C0=FD=A3=A8Dim fs=20
as Features=B4=B4=BD=A8 Features =BC=AF=BA=CF=A3=A9<BR>AllFeatures =
=B7=B5=BB=D8=CD=BC=B2=E3=D6=D0=B0=FC=C0=A8=CB=F9=D3=D0=CD=BC=D4=AA=B5=C4 =
Features =BC=AF=BA=CF=A1=A3 Set fs=20
=3D Map1.Layers(2).AllFeatures<BR>NoFeatures =
=B7=B5=BB=D8=CD=BC=B2=E3=B5=C4=BF=D5 Features =BC=AF=BA=CF=A1=A3 Set fs =
=3D=20
Map1.Layers(9).NoFeatures<BR>SearchWithinDistance =
=B7=B5=BB=D8=D4=DA=D6=B8=B6=A8=B5=E3=B6=D4=CF=F3=D6=DC=CE=A7=B5=C4=C4=B3=B8=
=F6=B7=B6=CE=A7=C4=DA=CD=BC=D4=AA=B5=C4=20
Features =BC=AF=BA=CF=A1=A3 Set fs =3D Map1.Layers(3). =
SearchWithinDistance (objPoint,=20
_36.5, miUnitMile, miSearchTypeCentroidWithin) =
<BR>SearchWithinFeature=20
=
=B7=B5=BB=D8=D3=C9=C1=ED=D2=BB=D6=B8=B6=A8=C7=F8=D3=F2=CD=BC=D4=AA=D6=D0=CD=
=BC=D4=AA=D7=E9=B3=C9=B5=C4=CD=BC=D4=AA=B6=D4=CF=F3=A1=A3 Set fs =3D =
Map1.Layers(3). SearchWithinFeature _(ftr,=20
miUnitMile, miSearchTypeCentroidWithin)<BR>SearchWithinRectangle=20
=
=B7=B5=BB=D8=D4=DA=D6=B8=B6=A8=BE=D8=D0=CE=B1=DF=BD=E7=D6=D0=B5=C4=CD=BC=D4=
=AA=BC=AF=BA=CF=A1=A3 Set fs =3D Map1.Layers(3). =
SearchWithinRectangle(miRect,=20
_miUnitMile, miSearchTypePartiallyWithin)<BR>SearchAtPoint=20
=
=B7=B5=BB=D8=D3=C9=D6=B8=B6=A8=B5=E3=B4=A6=CD=BC=D4=AA=D7=E9=B3=C9=B5=C4=CD=
=BC=D4=AA=BC=AF=BA=CF=A1=A3 Set fs =3D Map1.Layers(3)=20
=
.SearchAtPoint(objPoint)<BR>=CB=D1=CB=F7=C0=E0=D0=CD=B3=A3=CA=FD<BR>MiSea=
rchTypeCentroidWithin=20
=
=C8=E7=B9=FB=CD=BC=D4=AA=B5=C4=D6=D0=D0=C4=CE=BB=D3=DA=C7=F8=D3=F2=D6=D0=A3=
=AC=D4=F2=D4=DA=CB=D1=CB=F7=D6=D0=B0=FC=BA=AC=B8=C3=B3=A3=CA=FD=A1=A3<BR>=
MiSearchTypeEntirelyWithin=20
=
=C8=E7=B9=FB=C7=F8=D3=F2=B0=FC=BA=AC=B4=CB=CD=BC=D4=AA=A3=AC=D4=F2=D4=DA=CB=
=D1=CB=F7=D6=D0=B0=FC=BA=AC=B8=C3=B3=A3=CA=FD=A1=A3<BR>MiSearchTypePartia=
llyWithin=20
=
=C8=E7=B9=FB=CD=BC=D4=AA=B5=C4=C8=CE=D2=E2=B2=BF=B7=D6=CE=BB=D3=DA=C7=F8=D3=
=F2=D6=D0=A3=AC=D4=F2=D4=DA=CB=D1=CB=F7=D6=D0=B0=FC=BA=AC=B8=C3=B3=A3=CA=FD=
=A1=A3<BR><BR>=D2=D4=CF=C2=B4=FA=C2=EB=CA=C7=B9=A4=BE=DF=CA=B9=D3=C3=B5=C4=
=CA=C2=BC=FE=A3=AC=CB=FC=CE=AA=D3=C3=BB=A7=B5=A5=BB=F7=B5=E3=B4=A6=B5=C4=CD=
=BC=D4=AA=B4=B4=BD=A8=BC=AF=BA=CF=A1=A3<BR>Private=20
Sub Map1_ToolUsed(ByVal ToolNum As Integer, ByVal X1 As Double, =
ByVal Y1=20
As Double, ByVal X2 As Double, ByVal Y2 As Double, ByVal Distance =
As=20
Double, ByVal Shift As Boolean, ByVal Ctrl As Boolean, =
EnableDefault As=20
Boolean)<BR><BR>Dim ftr As Feature 'creates a Feature =
object<BR>Dim fs As=20
Features 'creates a collection of features<BR>Dim pt As New Point =
'creates=20
a new point<BR><BR>'the new point created has coordinate values =
set when=20
the user clicks on a feature<BR>pt.Set X1, Y1<BR>'If the tool used =
is the=20
custom info tool then create a collection of features from the =
States=20
=A1=AElayer and print the State Name feature into a message =
box.<BR>If ToolNum=20
=3D InfoTool Then<BR>'create the collecton of features at the =
point the user=20
clicked<BR>Set fs =3D =
Map1.Layers("USA").SearchAtPoint(pt)<BR>'print the=20
State Name feature into a message box.<BR>For Each ftr In =
fs<BR>MsgBox=20
ftr.Name<BR>Next<BR>End If <BR>=B2=D9=D7=DD Features=20
=
=BC=AF=BA=CF<BR>=D2=D4=CF=C2=B7=BD=B7=A8=CA=B9=C4=FA=B5=C3=D2=D4=CD=A8=B9=
=FD=D4=DA=BC=AF=BA=CF=D6=D0=CC=ED=BC=D3=A1=A2=C9=BE=B3=FD=A1=A2=B8=B4=D6=C6=
=CD=BC=D4=AA=B6=D4=CF=F3=C0=B4=B2=D9=D7=F7 Features =
=BC=AF=BA=CF=A3=BA<BR><BR>=B7=BD=B7=A8 =C3=E8=CA=F6<BR>Add =BD=AB=20
Feature =B6=D4=CF=F3=BB=F2=D5=FB=B8=F6 Features =
=BC=AF=BA=CF=CC=ED=BC=D3=B5=BD=BC=AF=BA=CF=A1=A3<BR>Clone =
=BD=AB=BC=AF=BA=CF=B8=B4=D6=C6=CE=AA=C1=ED=D2=BB=B8=F6 Features=20
=BC=AF=BA=CF=B6=D4=CF=F3=A1=A3<BR>Common =
=BD=AB=B4=CB=BC=AF=BA=CF=D3=EB=C1=ED=D2=BB=B8=F6 Features =
=BC=AF=BA=CF=CF=E0=BD=E1=BA=CF=A3=AC=D5=E2=D1=F9=B8=C3=BC=AF=BA=CF=BD=AB=BD=
=F6=B0=FC=BA=AC=B6=FE=D5=DF=D6=D0=BE=F9=B0=FC=BA=AC=B5=C4=CD=BC=D4=AA=A3=A8=
INTERSECT=20
=BC=AF=BA=CF=B2=D9=D7=F7=A3=A9=A1=A3<BR>Remove =
=B4=D3=B8=C3=BC=AF=BA=CF=B5=C4 Features =BC=AF=BA=CF=D6=D0=C9=BE=B3=FD =
Feature =B6=D4=CF=F3=BB=F2=CB=F9=D3=D0=CD=BC=D4=AA=A3=A8SUBTRACT=20
=BC=AF=BA=CF=B2=D9=D7=F7=A3=A9=A1=A3<BR>Replace =
=BD=AB=BC=AF=BA=CF=C4=DA=C8=DD=CC=E6=BB=BB=CE=AA Feature =
=B6=D4=CF=F3=BB=F2 Selection =
=BC=AF=BA=CF=B6=D4=CF=F3=B5=C4=CB=F9=D3=D0=CD=BC=D4=AA=A1=A3<BR><BR>Featu=
re=20
=B6=D4=CF=F3<BR>Features =BC=AF=BA=CF=D3=C9 Feature =
=B6=D4=CF=F3=BC=AF=BA=CF=D7=E9=B3=C9=A1=A3Feature=20
=
=B6=D4=CF=F3=B6=D4=D3=A6=D3=DA=B5=D8=CD=BC=C9=CF=B5=C4=CD=BC=D4=AA=A3=AC=C0=
=FD=C8=E7=B7=FB=BA=C5=A1=A2=CF=DF=BB=F2=C7=F8=D3=F2=A1=A3<BR>Feature=20
=
=B6=D4=CF=F3=B7=BD=B7=A8=CA=B9=C4=FA=BF=C9=D2=D4=B4=B4=BD=A8=BA=CD=B2=D9=D7=
=F7=B6=C0=C1=A2=CD=BC=D4=AA=B6=D4=CF=F3=A1=A3=D4=DA=B4=B4=BD=A8=B6=C0=C1=A2=
=CD=BC=D4=AA=B6=D4=CF=F3=BA=F3=A3=AC=B1=D8=D0=EB=BD=AB=B8=C3=CD=BC=D4=AA=B6=
=D4=CF=F3=B8=BD=BC=D3=B5=BD=B5=D8=CD=BC=C9=CF=BA=F3=B2=C5=C4=DC=D2=FD=D3=C3=
=B6=D4=CF=F3=B5=C4=CB=F9=D3=D0=B7=BD=B7=A8=BA=CD=CA=F4=D0=D4=A1=A3=B0=D1=CD=
=BC=D4=AA=B8=BD=BC=D3=B5=BD=B5=D8=CD=BC=CA=B1=B5=D8=CD=BC=B5=C4=D7=F8=B1=EA=
=CF=B5=D3=EB=CD=BC=D4=AA=CF=E0=B9=D8=C1=AA=A1=A3<BR>=D2=D4=CF=C2=20
Visual Basic =
=CA=BE=C0=FD=CF=D4=CA=BE=C8=E7=BA=CE=B4=B4=BD=A8=B6=C0=C1=A2=B5=C4 Text =
=CD=BC=D4=AA=A3=AC=C8=BB=BA=F3=D0=DE=B8=C4=C6=E4=B1=EA=CC=E2=A1=A3<BR>Dim=
f As New Feature<BR>Dim=20
fNew As Feature<BR>' Add a new text object to layer 1<BR>f.Attach=20
Map1<BR>f.Type =3D miFeatureTypeText<BR>f.Point.Set Map1.CenterX,=20
Map1.CenterY<BR>f.Caption =3D "This is a text object"<BR>Set fNew =
=3D=20
Map1.Layers(1).AddFeature(f)<BR>' Change the text caption =
<BR>fNew.Caption=20
=3D "Changed =
Text"<BR>fNew.Update<BR>=CD=BC=D4=AA=B6=D4=CF=F3=CA=F4=D0=D4<BR><BR>=D2=D4=
=CF=C2=CA=F4=D0=D4=B6=A8=D2=E5=CD=BC=D4=AA=B6=D4=CF=F3=A3=BA<BR><BR>=CA=F4=
=D0=D4 =C3=E8=CA=F6=20
=B4=FA=C2=EB=CA=BE=C0=FD <BR>CenterX =
=B0=FC=BA=AC=CD=BC=D4=AA=D4=DA X =
=D6=E1=B7=BD=CF=F2=B5=C4=D6=D0=D0=C4=A1=A3 Print ftr.CenterX<BR>CenterY =
=B0=FC=BA=AC=CD=BC=D4=AA=D4=DA Y=20
=D6=E1=B7=BD=CF=F2=B5=C4=D6=D0=D0=C4=A1=A3 MsgBox =
ftr.CenterY<BR>FeatureID =B0=FC=BA=AC=CD=BC=D4=AA =
ID=A1=A3=CD=BC=B2=E3=D6=D0=B5=C4=C3=BF=B8=F6=CD=BC=D4=AA=D4=DA=C3=BF=B8=F6=
=CD=BC=B2=E3=D6=D0=B0=FC=BA=AC=CE=A8=D2=BB=20
ID=A1=A3=CE=AA=D5=FB=CA=FD=D6=B5=A1=A3 IVar =3D =
ftr.FeatureID<BR>Length =B0=FC=BA=AC=CD=BC=D4=AA=B3=A4=B6=C8( =
=CF=DE=D3=DA=CF=DF=D0=CE=CD=BC=D4=AA)=A1=A3 Print=20
ftr.Length<BR>Perimeter =
=B3=A4=B6=C8=D6=B8=CD=BC=D4=AA=B5=C4=D6=DC=B3=A4(=CF=DE=D3=DA=C7=F8=D3=F2=
=CD=BC=D4=AA)=A1=A3 Print ftr.Perimeter <BR>Name=20
=B0=FC=BA=AC=CD=BC=D4=AA=C3=FB=B3=C6=A1=A3 MsgBox ftr.name<BR>Type =
=B0=FC=BA=AC=CD=BC=D4=AA=A3=A8=B5=E3=A1=A2=CF=DF=B5=C8=A3=A9=C0=E0=D0=CD=A1=
=A3 ftr.Type =3D=20
miFeatureTypeSymbol <BR>=B5=DA=C8=FD=BD=DA =CA=B9=D3=C3Selection =
=BC=AF=BA=CF<BR><BR>MapX=20
=
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