topic ArcGIS10: OLE DB Connection-Create Feature Class from XY Table of accdb. No Points? in Mapping Questions

ArcGIS10: OLE DB Connection-Create Feature Class from XY Table of accdb. No Points?

ScottChang — Thu, 08 Mar 2012 16:43:47 GMT

Hi all,
In my ArcCatalog 10, I have "Table8Pts" for 8 sets (points) of XY coordinates in Access 2007/OLE DB Connection. I clicked on "Create Feature Class" => From XY Table => Added the Geographic (or Projected) Coordinate System => WGS_1984_World_ Mercater => executed the process for the "Create Feature Class" OK. It generated a shapefile "XYTable8Pts in ArcCatalog 10. In my ArcMap 10, I added the Data of the "XYTable8Pts" shapefile to the Layers. It worked also. But I can't see the 8 points appeared on the right-hand-side of pane/screen. See the attached file for details. I do not how to make the 8 points appeared on the screen. Please help and advise me how to make the 8 points appeared on the right-hand-side of pane/screen.
Thanks,
Scott Chang

Re: ArcGIS10: OLE DB Connection-Create Feature Class from XY Table of accdb. No Point

MarcinGasior — Fri, 09 Mar 2012 08:23:30 GMT

Are your X,Y data in geographic (longitude, latitude) or projected (eg. meters) coordinates?
If XY data are in geographic coordinates you should select Geographic Coordinate System when creating shp (most probably WGS 1984).

If it doesn't work, check if the coordinates in table are correct (numeric, do not have any spaces or other strange characters).

Re: ArcGIS10: OLE DB Connection-Create Feature Class from XY Table of accdb. No Point

ScottChang — Wed, 14 Mar 2012 16:31:58 GMT

Hi m.gasior, Thanks for your response.

1) I was not sure which coordiate system I had. But, I used the "Zoom To Layer" command and I got the points appeared on the map.

2) I brought in a jpg file of the points site to this map. I tried to use "GeoReferrence" to match the 3 corner points with the XY figure by using the 3 "Control Points" to adjust the 2 features spatially. Each time I clicked on the Control Points, I got a skewed jpg figure - see the attached file. Do you know why I got the skewed jpg figure? How can I cure this problem?

Please help and advise me on solving this new problem.

Thanks,
Scott Chang

Re: ArcGIS10: OLE DB Connection-Create Feature Class from XY Table of accdb. No Point

MarcinGasior — Thu, 15 Mar 2012 06:05:55 GMT

I was not sure which coordiate system I had.

I think, it's essential to know which coordinate system you have (at least if it's geographic or projected) when importing X,Y data.

@2) It's hard to say what you do wrong.
I suppose, you should follow the georeferencing help. There is step by step instruction how to georeference raster.