Copying polygons between tables.

[mick bobin]

I have what I believe to be a simple problem but am having trouble resolving it.

I have a raster image and a number of tables with various ground details contained on them.

I also have some data provided in dwg format and have translated those to Mapinfo tables.

If I bring one of the translated tables in it is completely removed (spatial wise) from the original data and I have been unable to move it to the same location. In fact they are so different if I fit all layers I am unable to see anything on the screen. The original and translated tables are just on the default longitude/latitude projection.

There are only a few polygons in the table but they are a unique shape and if I can transpose them onto the image I can manoeuvre them to fit where I need them.

I have tried creating a blank table and copy and paste them but don't seem to be able to get them to show up.

Any clues please ?

Cheers

Mick

[Montazery Hasibuan]

Hi, do you get the attribute when copying the polygon? If you do how about changing the style from layer control to see if it was somehow became non-style‎ polygon. As for the projection are you sure your DWG projections are LL?

Sent from my BlackBerry 10 smartphone on the Telkomsel network.

From: mick bobin Sent: Sunday, February 22, 2015 13:21 To: mapi...@googlegroups.com Reply To: mapi...@googlegroups.com Subject: [MI-L] Copying polygons between tables.

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[mick bobin]

Ok, I copied the polygon/(s), I have made the new table editable and pasted them in but they end up(I'm pretty sure) in the same spatial area that they originally came from so on that I guess, yes attributes are being carried through. I don't need to accurately bring them into the new table, I'm going to manipulate them into where they should sit against the raster image. Yes I looked at the projection for the translated dwg files and they are also non earth L/L

[mick bobin]

I have attached two files, look at the difference in the x,y co-ords !

 

[Timothy Mashford]

Ideally you would find out the correct coordinate system for the original DWG file and specify this when you import the data. 'Non earth L/L' doesn't really make sense.... and it sounds like 'the default longitude/latitude projection' isn't the correct choice.

You might want to look at the Register Vector Utility tool? This will let you select a few 'control points' to fit the data to the map.

[KTG Infotech]

We have encountered such cases in the past, check out your projection details from both the tables. i am pretty sure they are different.

make sure your projection is same for both the files.If still don't have a solution, contact me offline i think i can help you out.

Good luck

Kalai Selvan.K

KTG INFOTECH

GIS (Mineral Exploration)
Geological Mapping, Data Integration, Map Digitizing, Analysis and Data Conversion
for Geochemistry,IP and Drill Collar logs
Skypes-kkalai.selvan