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Shape files

8 REPLIES 8
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Message 1 of 9
pottsk1
429 Views, 8 Replies

Shape files

Is there a way to tell what datum a .shp file is in? I have a predefind datum that the drawing is in, but I'm not sure what the shape file is in. I have a bunch of files such as .dbf, autocadd shape source, .sbn, .xml, .sbx.

Thanks in advance!

Kim

Kim Potts
AutoCAD/Survey Tech
Merritt LS L.L.C..
743 Horizon Ct. Suite 100B
Grand Junction, CO 81506
8 REPLIES 8
Message 2 of 9
antoniovinci
in reply to: pottsk1

If you lack a PRJ file, there's no way to determine the correct CRS, so your shape stays undefined, sir.

In such a case, only a cartograph will be able to "guess" the suitable CRS, basing on the X values (i.e. 'false meridian').

Message 3 of 9
Pointdump
in reply to: pottsk1

Kim,

 

Grab the SHP in Data Connect and see if shows a Coordinate System. Sometimes you get lucky, and it's there. If not, it'll say "Unknown".

 

Zone.png

 

Dave

Dave Stoll
Las Vegas, Nevada

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Message 4 of 9
pottsk1
in reply to: antoniovinci

I understand that the PRJ file will be sent with the rest of the information. So I should be good to go.
Thank You!
Kim Potts
AutoCAD/Survey Tech
Merritt LS L.L.C..
743 Horizon Ct. Suite 100B
Grand Junction, CO 81506
Message 5 of 9
pottsk1
in reply to: Pointdump

I was wondering if I went through Data Connect it would show it. I also think it would show up in the mapimport command if it's there.
Thanks Dave!
Kim Potts
AutoCAD/Survey Tech
Merritt LS L.L.C..
743 Horizon Ct. Suite 100B
Grand Junction, CO 81506
Message 6 of 9
Murph_Map
in reply to: pottsk1

If you don't have the .prj file but have an .xml file you may be able to get the projection/coordnite system as well. For example City.shp.xml is the medadata that explains everything (provide the creator filled out all the info) about the City.shp file(s). Some software will automatic the creation if the prj file was present when the file was saved/updated.

Murph
Supporting the troops daily.
Message 7 of 9
pottsk1
in reply to: Murph_Map

I am supposed to get the .xml file along with the .prj file so I have a couple ways to look for the same thing.
Thanks Murph!
Kim Potts
AutoCAD/Survey Tech
Merritt LS L.L.C..
743 Horizon Ct. Suite 100B
Grand Junction, CO 81506
Message 8 of 9
Murph_Map
in reply to: pottsk1

If you use the Data Connect there is a map3d command " MAPMETADATAVIEWER" that allows you to view the .xml file. A little easier than notepad or other xml viewers. 

 

MetaDataReader.png

Murph
Supporting the troops daily.
Message 9 of 9
pottsk1
in reply to: Murph_Map

Thanks again Murph. If I run into problems I will use your suggestions.
Kim Potts
AutoCAD/Survey Tech
Merritt LS L.L.C..
743 Horizon Ct. Suite 100B
Grand Junction, CO 81506

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