Tagged Questions
2
votes
2answers
140 views
What's the best projection for rasterization of random latitude and longitude data in the northern Atlantic?
I have a dataset in the WGS84 geographic coordinate system that I would like to interpolate along a grid using Python.
It appears gdal_grid is not available through the Python bindings, so I plan to ...
2
votes
1answer
413 views
QGIS: On the fly projection from WGS84, 19 N, to Web Mercator. Do I need to define a new CRS with transformation parameters?
Workin in QGIS, I have a shapefile called "protected areas" of Dominican Republic, that was digitized from topomaps 50k. Shapefile is projected to WGS84, 19N zone. My problem is that when I load ...
2
votes
1answer
152 views
How to convert NAV4 coordinate system to WGS84?
I would like to know whether it is possible to convert the coordinates given in a NAV4 coordinates system into WGS84. I could not find out what NAV4 is and if it is actually a standardized CRS.
Here ...
0
votes
2answers
800 views
6
votes
1answer
600 views
Python script to convert Lat Long to ITM (Irish Transverse Mercator)
I am currently working on a python script that converts Lat Long (WGS84) to ITM. The formulas used are based on a paper published by OSGB (Appendix B):
...
1
vote
0answers
237 views
Conversion From Transverse Mercator To Longitude & Lattitude
I have to transform (7-parameters datum transformation) coordinates from northings & eastings to lattitude & longitude.
Following are details of source coordinate system(i.e. northings & ...
2
votes
0answers
414 views
OSGB36 to WGS84 reprojection 'error'
First off, I am a recent convert to QGIS and am greatly impressed with its ease of use and speed compared with the ESRI products with which I am more familiar - my congratulations and thanks to its ...
0
votes
2answers
2k views
Converting from British National Grid (27700) to WGS84 (4326) to Web Mercator (102100)
I'm developing a web application that uses ESRI ArcGIS to display a map using JavaScript.
We are holding all our data in MS SQL Server 2008 as Easting/Northing against the British National Grid. ...
15
votes
5answers
5k views
Map projection in OpenLayers
I want to overlay some data whose projection is WGS-84 on Google map layer in OpenLayers. But I just can't make them in the right place. I did as follows:
map = new OpenLayers.Map('map', {
...
1
vote
3answers
2k views
Convert Lambert Conformal Conic to WGS84
I am trying to convert my "Lambert Conformal Conic map with 2 standard parallels" to the basic/standard WGS84 projection that Google Maps use.
I have 30 of these maps which I need to convert. They ...
1
vote
1answer
378 views
Empty mapper window when I open a OSGB36 shapefile in MapInfo Professional. How can I see the data?
I have a set of shapefiles which I'm trying to open in MapInfo Professional 7.8. Each of the shapefiles has a .prj file which looks like this:
PROJCS["British_National_Grid",GEOGCS["GCS_OSGB_1936"
...
5
votes
2answers
3k views
Converting X,Y coordinates to lat/long using pyproj and Proj.4 returns the wrong coordinates
I'm writing a python script that reads multiple XML files containing x and y coordinates and combines them all into a single csv file. Latitude and Longitude are required fields in the csv, but I am ...
3
votes
1answer
721 views
Matching ArcGIS and QGIS coordinate systems
I have the following info for a feature class in ArcGIS that is supposed to be in WGS 1984/UTM 16N projected coordinate system:
Projection: Transverse_Mercator
False_Easting: 500000.000000
...
