Any of a set of two or more numbers used to determine the position of a point, line, curve, or plane in a space of a given dimension with respect to a system of lines or other fixed references.

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1answer
14 views

Fixing mercator coordinates that are outside the world bounding box?

I'm using mercator-projected overlays from a crowdsourced website where volunteers georectify images of maps by hand. Unfortunately, the slippy map that serves as the site's interface wraps and allows ...
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1answer
26 views

ArcPad custom edit form validation behaviour

I have a custom ArcPad form, which includes the geography tab. Users use this tab to update coordinates using the GPS. When user press OK in the edit form, I want to first check that they have not ...
1
vote
1answer
42 views

How do I convert a screen position to geographic coordinates?

I'm looking for resources that explain how I should convert screen coordinates (the point that I pick on-screen) to geographic coordinates (lat / lon). I want to build an application where, the ...
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0answers
7 views

Obtaining ECEF Velocities from givens of LLA coordinates, heading, and speed

If you are given positional data in lat/long/altitude (LLA) along with a heading and speed, how do you go about computing the Earth Centered Earth Fixed (ECEF) components of velocity? Additionally, ...
2
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0answers
35 views

QGIS 2.8 PrintComposer, no coordinates shown

I tested under MacOS 10.10.3 and 10.9.5 now: In the QGIS v2.8 Print Composer I don´t get coordinates shown when I want to create a map sheet and activate "Draw coordinates". I can do all settings ...
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1answer
27 views

Check if a point cordinate is between linestring cordinates

I know that, linestring is a vector and if i want to check that, if point cordinates are between linestring begginning and ending cordinates then i need to use vector comparison (x2 > x && ...
2
votes
1answer
70 views

How to handle coordinates accuracy in ArcGIS

I am creating very basic rectangular polygon using very basic a Python code nCols,nRows=100,100 corners =[[0,0],[0,nRows],[nCols,nRows],[nCols,0],[0,0]] ...
1
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1answer
36 views

How to decode GPS coordinates from Android device XML file?

I’d like to decode the location coordinates from the XML file from my Android phone (SGS2). Any solution how to do it, how to convert them to usable coordinates (longitude/latitude)? Looks like it's ...
0
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1answer
27 views

Trying to convert coordinates for use in ArcGIS

I'm trying to input this data into ArcGIS and plot coordinates like this: 00⁰06.743 031⁰36.970 (coordinates south / coordinates east) but I've failed so far and I was wondering if someone could ...
1
vote
1answer
28 views

WKID matching EPSG

Is there a way to matching the code of ESRI WKID with EPSG code? I'm trying to find the coordinate system of PCS Name = CGRS_1993_LTM. Which has WKID:102319 code. But I donn't know the EPSG code.
-1
votes
1answer
56 views

Single point in R

My question might be very simple. I want to create a single point (with xy coordinates) in a specific region, in a specific position. I don't want to do that with qgis I want to do that in R. Is there ...
4
votes
1answer
177 views

Convert from WGS84 to Google Mercator

I want to convert longitude and latitude coordinates from WSG84 to Google Mercator. The following code-samples show my coordinates in a KML/KMZ file and where I need the coordinates in the javascript ...
3
votes
2answers
20 views

Do I need to transform wind vectors when changing projection from EPSG4326 to EPSG24373?

I have a set of points and polygons given in "normal" lat/lon coordinates EPSG4326, which I need to transform to EPSG24373. I can do this without problem using PROJ4. However, I also have wind ...
2
votes
2answers
62 views

How to get cell value along Flow Direction

I have: a flow direction raster where I took off (assigned NoData value) the cells that overlayed the river network (from flow accumulation). a perfectly overlapping raster where I asigned a ...
0
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0answers
15 views

Convert IP addresses to street addresses or latitude, longitude coordinates? [duplicate]

Would it be possible to convert IP addresses to latitude-longitude coordinates or street addresses which then can be geocoded? or at least find the approximate location?
1
vote
1answer
40 views

Can layers with different extents in arcmap 10 be made to line up?

I am currently trying to get some insect sampling coordinates that are represented by points to project on top of a polygon that shows all the different plots of land in a ranch. The coordinates for ...
2
votes
0answers
34 views

Calculating lat/long coordinates from DLS (Dominion Land Survey) Location

I am trying to calculate the legal subdivision center of a DLS location and even when I try the simplest calculation my numbers are always off from other calculators. Take for example DLS location ...
1
vote
0answers
52 views

Google API for Boundary coordinates

Is there any Google API (or any other) which can provide boundary information (i.e. Lat, Lng) for a particular location. Location can be a city, district or a region with in a city. For Example Dammam ...
2
votes
1answer
36 views

Populate X and Y fields in SDE Point Data Using SQL trigger

Here is my situation. I am running ESRI ArcGIS Server and Desktop 10.2 on SQL Server 2008 R2. I would like to populate the Latitude and Longitude fields from point data (Signs data collected using ...
0
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0answers
35 views

Calculate coordinates with better precision in ArcGIS for Desktop?

I'm using the geometry calculator to get the geographic coordinates of a point shapefile. However when I run it, it calculates the coordinates with 4 decimal points, regardless I've chosen double an ...
1
vote
1answer
47 views

How to transform data from a custom projection in JTS?

I have some data in NAD_1983_StatePlane_Texas_Central_FIPS_4203_Feet I wish to programmatically transform the coordinates to Lat long in WGS84 datum using JTS. I know that JTS can transform the ...
0
votes
1answer
37 views

Distance between coordinates

I placed some cones on a sports playing field and estimated their locations using latitude/longitude coordinates. An example pair of estimated latitude/longitude coordinates is 54.96975, -1.51407. On ...
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0answers
38 views

How to create function that gives google maps getBounds result?

I'm trying to create function that would calculate four bounding coordinates by latLng, zoom level, width and height in pixels, the same like in google maps getBounds function, in goal I won't create ...
0
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1answer
69 views

Converting between wgs84 and nad83

This is a newbie question that is about converting between wgs84 and nad83. I have aerial photos that I am trying to compute lat long coordinates for as closely as possible. There are several factors ...
0
votes
1answer
27 views

Converting osm_id to OSGB coordinates

I've downloaded from http://extract.bbbike.org/ a map of the waterways and waterbodies within Greater London, Uk. I've loaded the shapefile into QGIS and opened its attribute table. I see that the ...
3
votes
1answer
37 views

From LiDAR .txt to QGIS map

I have Lidar data in .txt files (1000 to 26000 KB), where 2nd column marks x-coordinates, 3rd col y and 4th col z. 8 485000.16 6508997.48 1.84 66 Last 2 485001.27 6508998.92 1.86 82 Last 2 485001.02 ...
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1answer
29 views

Converting SWEREF99TM coordinates to the “standard” coordinate system (longitude and latitude)

I recently asked a question about a coordinate system in a file, and found out that it used SWEREF99TM, but I can't figure out how to convert those coordinates to the "geographic coordinate system". ...
2
votes
1answer
101 views

Coordinate system doesn't contain values in the range -180 to 180 and -90 to 90

I'm creating an android version of a PC program (I've contacted the company who owns the PC program, so it's legal). The program is in the core a GPS, but is used to navigate pre-defined routes for ...
1
vote
1answer
53 views

How to get coordinates by click on map and send coordinate to MySQL?

I'm building my own web map. Now I want to get the coordinates by click on the map and send the coordinates to MySQL. I tried OpenLayers to get the coordinates from Openstreetmap,but I didn't know ...
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0answers
28 views

Max length for WKT name

First of all, sorry if this is obvious or stupid questions. I am not very familiar with geographic information system. My question is, is there max length limitation on WKT name? see the bold text ...
1
vote
2answers
43 views

Is there a way to export coodinates from a feature class which has no X/Y column?

I have shape feature class of a province in France. The Geometry type is polygon. The feature class has columns which describe elevation, landuse, slope and so on. But it does not contain X and Y ...
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0answers
15 views

How to make input data matrix in flowmapper

I have problem with using flowmapper. I'm confused, how do I enter a text record? Can you give me an example of an appropriate text file? I've been doing interpolation and made a contour of the ground ...
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0answers
21 views

Geo referencing RADARSAT-1 image

I have lots of RADARSAT-1 file in GeoTiff format along with meta data where corner coordinates are available. Corner coordinates are for image portion(except the black portion). But, radar image has ...
0
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1answer
51 views

Transform lat,lng into x,y

I have coordinate system with x and y. Also I need to show there x,y point but I have coordinates latitude, longitude. How I can trasform latitude, logitude into x,y to show on x,y scale?
3
votes
1answer
71 views

PostGIS strange difference in distance calc from different point defenitions

I have a working POSTGIS database, loaded Dutch CBS data using shp2pgsql and now I want to map lat,lon coordinates to multipolygons. All examples I see use lon lat coordinates but if I do so I get ...
1
vote
2answers
73 views

Extracting/Exporting coordinates from polygons (shape) to text?

Is there any well working way to extract the X and Y coordinates of a polygon from shapefile to some sort of text (preferably csv)? The whole process should be somehow done automated through a ...
0
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0answers
23 views

Locating unmatched features by hand

I'm using an app which geocodes addresses. It returns the x y fields with the coordinates in a csv file, and so I draw those coordinates in Arcmap, and then create a feature class out of that. What ...
2
votes
1answer
56 views

Creating a 5x5 poylgon in ArcGIS with a predetermined center with coordinates X, Y [duplicate]

I need to build a polygon (5x5 km) centered on a coordinate X,Y. I want to use this 5x5 square for an eventual clip. How should I proceed in ArcMap?
4
votes
1answer
159 views

Line vs. Polygon Intersection Coordinates

I am working with Python, Shapely and Fiona... Is there any way where I can give in an input of a line shapefile and a polygon shapefile, and get a result of the intersection points and their ...
1
vote
3answers
136 views

convert csv to kml or geojson, etc using ogr2ogr or equivalent command line tools (use “latitude” and “longitude” attributes for coordinates)

I've just unsuccessfully tried to use ogr2ogr to convert CSV into KML like so: ogr2ogr -f "KML" output.kml input.csv The csv has "latitude" and "longitude" columns. The attributes are all loaded ...
0
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0answers
59 views

Set coordinate origin to the top left corner

I have a BMP-picture and I know that it's top left corner has the EPSG:3068 coordinates 35500,24390. I would like to use gdal_polygonize and than calculate the EPSG:3068 coordinates of the produced ...
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0answers
45 views

Generate random points for IDs with similar coordinates with ArcMap

I have a dataset which consists of IDs with addresses and coordinates (long/lat). Some of the IDs have similar coordinates. How do I generate random points for the IDs that have those similar ...
1
vote
1answer
80 views

header row in excel is not header row when imported into ArcMap

I am importing an Excel table with X/Y coordinates to plot on a map (point data). The original Excel table has a header row as its top row..The row is 'frozen' in Excel. When I import the table and ...
4
votes
1answer
96 views

Can I find location entering coordinates?

I am new to QGIS and have a n00b question: can I find a location on the map I'm working with by entering its coordinates? If yes, where do I enter said coordinates?
1
vote
0answers
20 views

Get response from geo server without Coordinates

I have following url of geo server layer, It takes very long time to get response ...
3
votes
2answers
143 views

How to output coordinates from a shapefile to a GMT or CSV file in QGIS?

I want to get the coordinates for a line shapefile as csv or gmt files. I click create "new layer" - "new shapefile layer" - I check the "line" box and then "OK". Then I make my shapefile. When I ...
3
votes
1answer
66 views

How to know the coordinates in a grid?

I have a raster (a catchment area) and a weather station with its coordinates (imported as .txt in ArcGIS) in UTM system. I want to know which row and column of my grid belongs to this station. How ...
3
votes
2answers
51 views

Compensating lat/long offsets after conversions

In my application I am doing conversions between two different formats of data. First format is a simple one containing NE and SW coordinates for a given rectangular area: area = { "sw": { ...
2
votes
1answer
16 views

Grids not originating from 2D parameter spaces

Is there any specific name for grids on sphere (or geoid, or any other manifold/surface) that do not originate from 2D parameter space? For example generating a grid on a sphere using icosahedron ...
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0answers
17 views

Converting angles and distances on Allotment map to North/East coordinates? [duplicate]

I have an allotment map with angles and distances but no North/East coordinates. Instead it has at one corner some numbers which I suspect are the coordinates but in some different form. Please ...