The information connecting numerical coordinates to actual locations on the earth.

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1answer
195 views

What is the DNSC08 Mean sea surface model ellipsoid based on?

Does anyone know what Danish Space centre DNSC08 mean sea surface model uses as the reference ellipsoid? there is no meta data on the web site: ...
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1answer
101 views

How to determine Earth co-ordinates?

I just read about latitudes and longitudes. I read latitudes are imaginary lines that run around the earth and longitudes are lines that run around from top to bottom. Using this system: 1. ...
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1answer
228 views

What datum (reference ellipsoid) does Nasa Worldwind use?

What datum (reference ellipsoid) does Nasa Worldwind use? I can't seem to find where Nasa Worldwind tells explicitly what datum they use. I need some sort of valid link.
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0answers
164 views

Possible to do a datum shift using dotSpatial?

I was hoping to be able to use Reproject.ReprojectPoints to achieve a datum shift between lat/lon values in NAD27 and NAD83. I'm able to correctly reproject from NAD27 lat/lon to NAD27 UTM and from ...
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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 & ...
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17 views

How to set GDAL/cs2cs/proj to use NTv2 grid shift file when using EPSG codes?

I am using the GDAL API for Python for a script that takes only EPSG codes for inputs to specify source and target coordinate systems. While the cs2cs command seems to handle quite well ...
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0answers
49 views

Is it functional on the fly between WGS84(GCS) data and bessel1841(MGI/Balkan zone7) data

I confirmed already on the fly function between two data which have different coordinate system if they are used the same datum. On the other hand, I could not see overlap between WGS84(GCS) data and ...