Linked Questions

Is there a handy reference that corelates the number of decimal points in a coordinate to the precision in meters? I had discussions like "4 decimal places will place you within a 500 meter radius" ...

When using coordinates in decimal degrees, how many decimal points actually make sense? For example, say one is producing a table of locations of base camps in a report, there's no point in ...

I'm working on a piece of software that converts Lat & Long from DMS (35° 19′ 20″ N) to decimal degrees. At the moment, the code creates number with 16 digits after the decimal point, which seems ...

For example, if the latitude and longitude is 25.1054, 121.5973 then what if it is off by a small amount, such as 0.0001: 25.1055, 121.5974 Then can it readily tell how many feet or meters it is ...

For example, when I try this: cs2cs +proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs +to +proj=tmerc +lat_ 0=22.31213333333334 +lon_0=114.1785555555556 +k=1 +x_0=836694.05 +y_0=819069.8 + ellps=intl +...

https://en.wikipedia.org/wiki/Decimal_degrees I found this chart in one of the questions here. Additional to this: When making a measurement and getting 2 Measures of Latitude, for example 51....

I'm trying to figure out how to mathematically derive the common points of two intersecting circles on earth's surface given a center Lat/Lon and a radius for each point. For example, given: Lat/Lon ...

I would like to know the precision of a geohash with a given length. If there is a 'simple' formula you can use to calculate it, that would be extra-cool. Wikipedia lists the precision up to 8 ...

I have points in geographic coordinate system and I wanted to convert them to swiss grid (CH1903+). Sample data: id lon lat 2 7.173500 45.86880 3 7.172540 45.86887 4 7.171636 45....

I am trying to retrieve latitude and longitude values. When the user clicks on the google map, latitude and longitude values should be displayed in the text boxes. My code is: <%@ Page Language="...

I'm building an indoor wifi-based tracking system that can calculate the position of a device in meters relative to the sensors distributed throughout the building. So far I've gotten to the point ...

I want to calculate the coordinates of a new point. What I have: The source point coordinates, the distance (meters) and the angle For example: I want to create a point within 100 meters and 45 ...

The ultimate question, I need a transformation matrix to take a point in local space representing a roughly 500m x 500m place in New Mexico centered at -108.619987456 long 36.234600064 lat. The final ...

I've got attributes for a length that the Near tool calculated, and it gave them to me in decimal degrees. I need them in feet. Is it possible to do this with the Calculate Field tool? I tried ...

I'm completely new to GIS and unsure what I need to solve this problem: In the image above turquoise is actually land. Sea is white. I tried using the NASA Distance to the Nearest Coast data dump by ...