Procedure of transforming coordinates?datum conversion with GDALHow do I convert EPSG:26986 coordinate pairs...
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Procedure of transforming coordinates?
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I'm trying to understand the math behind this transformation. I should note that I've been able to perform the transformation using geopandas, but I'd like to understand what is going on under the hood.
I've got this dataset of ZIP code polygons from NYC open data, that appears to be using NAD83 / New York Long Island (ftUS) (EPSG:2263), and I'm trying to transform it to WGS84 (EPSG:4326).
How do I turn (for example) (986038.6614370644, 213051.06312088) into (-73.99354429600449, 40.75145227487899).
wgs84 mathematics nad83 projection-mathematics
edited 43 secs ago
Taras
2,1972726
asked 2 hours ago
Alex LauniAlex Launi
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Alex Launi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
I'm trying to understand the math behind this transformation. I should note that I've been able to perform the transformation using geopandas, but I'd like to understand what is going on under the hood.
I've got this dataset of ZIP code polygons from NYC open data, that appears to be using NAD83 / New York Long Island (ftUS) (EPSG:2263), and I'm trying to transform it to WGS84 (EPSG:4326).
How do I turn (for example) (986038.6614370644, 213051.06312088) into (-73.99354429600449, 40.75145227487899).
wgs84 mathematics nad83 projection-mathematics
edited 43 secs ago
Taras
2,1972726
asked 2 hours ago
Alex LauniAlex Launi
1061
New contributor
Alex Launi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Use the available modules.. the math is quite complicated. OGR as a part of GDAL contains OSR which is an open source suite of utilities and APIs available for various languages. From memory NAD83 needs a geographic transformation to get to WGS84 (but I'm not an expert on Northern Hemisphere datums) read a bit more here: gis.stackexchange.com/questions/88262/… . If you have Esri software you will need to specify the datum transformation which could be mathematical or a grid of displacement vectors (eg: NTv2).
– Michael Stimson
1 hour ago
add a comment |
I'm trying to understand the math behind this transformation. I should note that I've been able to perform the transformation using geopandas, but I'd like to understand what is going on under the hood.
I've got this dataset of ZIP code polygons from NYC open data, that appears to be using NAD83 / New York Long Island (ftUS) (EPSG:2263), and I'm trying to transform it to WGS84 (EPSG:4326).
How do I turn (for example) (986038.6614370644, 213051.06312088) into (-73.99354429600449, 40.75145227487899).
wgs84 mathematics nad83 projection-mathematics
edited 43 secs ago
Taras
2,1972726
asked 2 hours ago
Alex LauniAlex Launi
1061
New contributor
Alex Launi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I'm trying to understand the math behind this transformation. I should note that I've been able to perform the transformation using geopandas, but I'd like to understand what is going on under the hood.
I've got this dataset of ZIP code polygons from NYC open data, that appears to be using NAD83 / New York Long Island (ftUS) (EPSG:2263), and I'm trying to transform it to WGS84 (EPSG:4326).
How do I turn (for example) (986038.6614370644, 213051.06312088) into (-73.99354429600449, 40.75145227487899).
wgs84 mathematics nad83 projection-mathematics
wgs84 mathematics nad83 projection-mathematics
edited 43 secs ago
Taras
2,1972726
asked 2 hours ago
Alex LauniAlex Launi
1061
New contributor
Alex Launi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 43 secs ago
Taras
2,1972726
asked 2 hours ago
Alex LauniAlex Launi
1061
New contributor
Alex Launi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 43 secs ago
Taras
2,1972726
edited 43 secs ago
Taras
2,1972726
edited 43 secs ago
Taras
2,1972726
2,1972726
asked 2 hours ago
Alex LauniAlex Launi
1061
New contributor
Alex Launi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 2 hours ago
Alex LauniAlex Launi
1061
asked 2 hours ago
Alex LauniAlex Launi
1061
1061
New contributor
Alex Launi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Alex Launi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Alex Launi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Use the available modules.. the math is quite complicated. OGR as a part of GDAL contains OSR which is an open source suite of utilities and APIs available for various languages. From memory NAD83 needs a geographic transformation to get to WGS84 (but I'm not an expert on Northern Hemisphere datums) read a bit more here: gis.stackexchange.com/questions/88262/… . If you have Esri software you will need to specify the datum transformation which could be mathematical or a grid of displacement vectors (eg: NTv2).
– Michael Stimson
1 hour ago
add a comment |
Use the available modules.. the math is quite complicated. OGR as a part of GDAL contains OSR which is an open source suite of utilities and APIs available for various languages. From memory NAD83 needs a geographic transformation to get to WGS84 (but I'm not an expert on Northern Hemisphere datums) read a bit more here: gis.stackexchange.com/questions/88262/… . If you have Esri software you will need to specify the datum transformation which could be mathematical or a grid of displacement vectors (eg: NTv2).
– Michael Stimson
1 hour ago
Use the available modules.. the math is quite complicated. OGR as a part of GDAL contains OSR which is an open source suite of utilities and APIs available for various languages. From memory NAD83 needs a geographic transformation to get to WGS84 (but I'm not an expert on Northern Hemisphere datums) read a bit more here: gis.stackexchange.com/questions/88262/… . If you have Esri software you will need to specify the datum transformation which could be mathematical or a grid of displacement vectors (eg: NTv2).
– Michael Stimson
1 hour ago
Use the available modules.. the math is quite complicated. OGR as a part of GDAL contains OSR which is an open source suite of utilities and APIs available for various languages. From memory NAD83 needs a geographic transformation to get to WGS84 (but I'm not an expert on Northern Hemisphere datums) read a bit more here: gis.stackexchange.com/questions/88262/… . If you have Esri software you will need to specify the datum transformation which could be mathematical or a grid of displacement vectors (eg: NTv2).
– Michael Stimson
1 hour ago
add a comment |
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Use the available modules.. the math is quite complicated. OGR as a part of GDAL contains OSR which is an open source suite of utilities and APIs available for various languages. From memory NAD83 needs a geographic transformation to get to WGS84 (but I'm not an expert on Northern Hemisphere datums) read a bit more here: gis.stackexchange.com/questions/88262/… . If you have Esri software you will need to specify the datum transformation which could be mathematical or a grid of displacement vectors (eg: NTv2).
– Michael Stimson
1 hour ago