Timeline for ESRI projection to SRID?
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 30, 2014 at 21:12 | vote | accept | bernie2436 | ||
| Mar 30, 2014 at 21:12 | |||||
| Mar 30, 2014 at 18:41 | comment | added | Chris W | @akh2103 Andre has already explained a little below, but essentially in that registry the 'code' column is the SRID. You might take a look at the Wikipedia entry regarding SRIDs: en.wikipedia.org/wiki/SRID It basically explains that SRIDs can be created by vendors or an authority and that, as Andre points out below, who created the number is/should be part of the designation as much as the number itself. | |
| Mar 30, 2014 at 18:06 | comment | added | AndreJ | See my extended answer. | |
| Mar 30, 2014 at 14:29 | comment | added | bernie2436 | @ChrisW I don't see any mention of SRID in the ESPG registry. How do I go from ESPG to SRID? | |
| Mar 30, 2014 at 7:04 | comment | added | Paul Ramsey | Oh, and once you've figured out the custom offset, you can create your own spatial_ref_sys entry, starting from the EPSG:3452 definition, and then altering the x_0 and y_0 parameters to correct for the custom offset. | |
| Mar 30, 2014 at 7:02 | comment | added | Paul Ramsey | Yes, in addition to being in stateplane (EPSG:3452), the coordinates have probably been re-scaled in some way. If you can take a single known point in your map, and manually figure out what the lon/lat coordinates are, then project those coordinates INTO EPSG:3452, you can compare the coordinates and see if you can figure out the offset they've taken out of the coordinates. | |
| Mar 30, 2014 at 3:12 | history | answered | Chris W | CC BY-SA 3.0 |