User Martin F

55 votes

Accepted

Performing bounding box query in PostGIS?

answered Jan 18, 2014 at 0:52

41 votes

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How is ST_PointOnSurface calculated?

answered Nov 6, 2013 at 1:52

27 votes

How to Import ESRI Geodatabase format .gdb into PostGIS

answered Jan 17, 2014 at 6:14

22 votes

Using schema other than public in PostGIS?

answered Feb 21, 2014 at 3:21

19 votes

Convert geometry to latitude-longitude using PostGIS ST_Transform

answered May 9, 2014 at 16:04

18 votes

If Geographic Coordinates are unprojected coordinates, how can GIS softwares display such unprojected data on a plane?

answered May 7, 2015 at 15:32

17 votes

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Is there a name for the geographic coordinate 0,0?

answered Mar 31, 2015 at 4:55

16 votes

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Picking coefficient in Inverse Distance Weighted method of QGIS?

answered Nov 25, 2013 at 18:09

14 votes

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Calculating distance scale factor by latitude for Mercator

answered Apr 16, 2014 at 20:25

12 votes

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What's the difference between hypsography and topography?

answered Nov 4, 2013 at 3:53

11 votes

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Eastings/Northings OSGB36 Grid origin

answered Feb 18, 2014 at 4:32

11 votes

Why some coordinate systems define x-axis as northings and some as easting?

answered Jun 3, 2014 at 20:44

10 votes

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What units are used for coordinates in geographic and projected coordinate systems?

answered Feb 15, 2017 at 20:12

9 votes

Calculating grid convergence (True North to Grid North)

answered May 16, 2015 at 22:44

9 votes

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What coordinate NOTATION would this be?

answered Sep 2, 2015 at 22:29

8 votes

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What is the new projection for Google Maps called?

answered Nov 15, 2018 at 4:25

8 votes

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Calculating bounding box coordinates based on center and radius

answered Dec 17, 2013 at 23:28

8 votes

Postgis, get the points that are x meters near another point, in meters

answered Nov 19, 2013 at 0:05

7 votes

Using circle as polygon for querying PostGIS

answered Feb 25, 2014 at 19:43

7 votes

Applying proper conversion from True to Grid bearing

answered Jan 6, 2014 at 7:57

7 votes

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New coordinate system?

answered May 23, 2014 at 18:29

7 votes

Why does Landsat 8 panchromatic band NOT include the infrared?

answered Nov 18, 2014 at 23:39

6 votes

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Influence of the scale factor on the projection

answered Nov 19, 2014 at 19:14

6 votes

Accepted

POSTGIS: function st_collect(geography) does not exist

answered Mar 27, 2014 at 23:52

6 votes

Estimating Landsat 7 azimuth (heading)?

answered Apr 9, 2014 at 16:25

6 votes

What is the unit used in ST_Distance()?

answered Nov 9, 2013 at 21:08

6 votes

Why does my map look stretched out?

answered Dec 28, 2013 at 22:59

6 votes

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Standard direction format in GIS software

answered Jan 18, 2017 at 19:29

5 votes

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How to semantically differentiate all that is called "projections"?

answered Feb 11, 2017 at 21:58

5 votes

Accepted

calculating the difference between 2 angles using st_azimuth and dot product

answered Nov 28, 2013 at 23:17

Stack Exchange Network

206 Answers

Performing bounding box query in PostGIS?

How is ST_PointOnSurface calculated?

How to Import ESRI Geodatabase format .gdb into PostGIS

Using schema other than public in PostGIS?

Convert geometry to latitude-longitude using PostGIS ST_Transform

If Geographic Coordinates are unprojected coordinates, how can GIS softwares display such unprojected data on a plane?

Is there a name for the geographic coordinate 0,0?

Picking coefficient in Inverse Distance Weighted method of QGIS?

Calculating distance scale factor by latitude for Mercator

What's the difference between hypsography and topography?

Eastings/Northings OSGB36 Grid origin

Why some coordinate systems define x-axis as northings and some as easting?

What units are used for coordinates in geographic and projected coordinate systems?

Calculating grid convergence (True North to Grid North)

What coordinate NOTATION would this be?

What is the new projection for Google Maps called?

Calculating bounding box coordinates based on center and radius

Postgis, get the points that are x meters near another point, in meters

Using circle as polygon for querying PostGIS

Applying proper conversion from True to Grid bearing

New coordinate system?

Why does Landsat 8 panchromatic band NOT include the infrared?

Influence of the scale factor on the projection

POSTGIS: function st_collect(geography) does not exist

Estimating Landsat 7 azimuth (heading)?

What is the unit used in ST_Distance()?

Why does my map look stretched out?

Standard direction format in GIS software

How to semantically differentiate all that is called "projections"?

calculating the difference between 2 angles using st_azimuth and dot product