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| GeoCommunity Mailing List |
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| Mailing List Archives |
| Subject: | Re: GISList: Batch subtraction |
| Date: |
08/30/2001 02:46:12 AM |
| From: |
Tadi Seetharamayya |
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Hi Jason,
If you have got a solution for this in ARCVIEW then
you can IGNORE my below method.
If you have MapInfo version greater than 4.5. Then,
1. Import the Shape file into Mapinfo through the
Universal Translator.
2. Once you have the file in as Mapinfo Tab. Make it
editable
3. Then select the lager polygon and then goto "Object
--> Set Target", then again select all the polygons
except the larg polygon by "Query --> select all from
that file"
4. Unselect the larger Polygon by holding control.
5. Then goto Objects and choose "Erase"
This will give you the reminder of all the polygons.
Now again export this as shp file through the
Universal Trasulator.
Hope this is what you required.
Cheers
Best Regards,
Seetharamayya. Tadi
--- "Jason C. Panek" <panek@co.cambria.pa.us> wrote:
> Situation:
> I have digitized a number of polygons with in large
> area based on a
> particular classification. The entire remainder of
> the area falls under the
> same classification. Is there anyway in ArcView 3.2
> or 8 to create a polygon
> representing the entire area and then subtract all
> of the polygons I
> digitized from the large polygon at once. I know how
> to subtract the
> polygons one at a time, but they may be too numerous
> too attempt.
>
> Thank you
> Jason C. Panek
> GIS Specialist
> Cambria Conservation
>
>
>
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=====
====(@@)
ooO_( ?)_Ooo__________________________________
Seetharamayya T.V.N. ___|____|____|____|____|____|___|
GIS Database & IT Coordinator |___|____|____|___|____|
Anglo American plc. Udaipur - INDIA|____|____|___|___|___|
Ph # :- 0091-0294-442071/72__|____|_____|___|___|_____|___|
E-mail: stadi@angloamerican.co.uk__|_____|___|___|_____|___|
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