[Qgis-user] From Bob Peck who needs help
goyodiaz at gmail.com
Mon Dec 19 11:47:38 EST 2011
2011/12/16 Robert Peck <rm25951 at yahoo.com>:
> Uncle! I need help.
> I have been trying to learn QuantumGIS so that I can put GPS (NAD 83 datum)
> locations of rock outcrops on a USGS quadrangle topographic map (NAD 27
> datum), connect the points to make contours, and produce a geological map of
> the quadrangle. I know how to make an Excel file into a .csv file which I
> can use to import the data to the project. I have learned how to open a new
> project, load a topo quad map, load a data set, and make either one of them
> visible on the map panel, and that's as far as I get. I'm trying to get the
> data points to appear on the map but am having no success. Below are the
> steps I've taken to get that far.
> Any suggestions as to what I'm doing wrong or what I'm not doing right? Any
> assistance will be gratefully appreciated. Thank you, Pilgrim
> 1. Open QGIS.
> 2. File >> New Project.
> 3. Layer >> Add Raster Layer >> Browse >>
> Hinton_UTM27z17_nocoll_grey400dpi.tiff >> Open.
> 4. The Hinton,WV USGS quadrangle map appears in the map panel.
> 5. Settings >> Project Properties.
> a. Enable 'on the fly' CRS transformation.
> b. Set CRS to NAD 27/UTM zone 17N (ID 2146).
> c. Hit "apply" and then "OK".
> 6. The map disappears.
> 7. Right click on the Hinton quad layer in the left panel >> Set layer
> CRS >> Set CRS to NAD 27/UTM zone 17N (ID 2146) >> hit "OK".
> 8. The map reappears.
> 9. Layer >> Add delimited text layer >> browse >>
> NRGGPSHINTONAVIS.csv >> Open.
> 10. "Create a layer from a delimited text file" dialog box opens.
> 11. I made sure that "selected delimiters" and "comma" boxes were both
> 12. I set X to UTME and Y to UTMN >> hit "OK".
> 13. No data points appear.
> 14. Right click on the data layer >> set layer CRS >> set CRS to NAD
> 83/UTM zone 17N (ID 2294).
> 15. View >> zoom to layer >> data appear but no map.
> 16. If I choose the map layer and go to View >> zoom to layer >> the
> map appears but no data. This goes back and forth with no data points
> appearing on the map, even when the map layer is the bottom layer in the
> layer panel.
Hi Robert, make sure you've activated on the fly reprojection.
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