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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2answers
154 views

Does a PDF contains geographical coordinate if the Adobe Reader Geospatial Location Tool doesn't write anything?

Does a PDF contain geographical coordinate if the Adobe Reader Geospatial Location Tool doesn't write anything? I mean that I am moving the mouse over the pdf and no latitude and longitude values ...
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3answers
130 views

Get “approximate” lat/long coordinate for UTM grid zone

I have data assigned with a UTM grid zone designators, such as 10S for example. Now I need an approximate latitude/longitude pair, preferably the center point of the given grid zone. Can you give me ...
3
votes
1answer
683 views

How to find X,Y coordinates of a single point in ArcMap 10.1?

I have a shapefile of a road layout (name: US-101). I drew a line across the road section which intersects the left and right edges of the road and pavement marking (which is also the part of ...
1
vote
1answer
91 views

Get XY value from TiledMapService Layer Tile

I have an ESRI TiledMapService layer and I have attached an event handler to the TileLoaded. Given the level, row, and column, how can I get the envelop of the tile in map coordinates? I'm using the ...
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1answer
32 views

Capturing GPS coordinates on the ground in Boliva?

Assuming no cellular or internet connection, what is the best way to capture GPS coordinates on the ground in Boliva? Preferably a free approach. For example, are their any android apps that can do ...
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vote
1answer
90 views

FME: how to extract the coordinate of the North West corner

In an FME translation from a polygon geodatabase feature class to a DGN I am trying to place a label in the top left corner of a box. I have tried using CoordinateExtractor to find the coordinates of ...
4
votes
1answer
204 views

Python libraries for correlating Photo to GPX file?

Can anyone recommend a Python library(s) that can geotag a photograph with the lat/long coordinates by correlating the timestamp of the photograph to the timestamp of a waypoint within a GPX file? I ...
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1answer
615 views

Trasformation from ECEF to ENU

I am trying to transform a local vector rECEF from ECEF coordinate system to ENU coordinate system (rENU) where ECEF = earth-centered earth-fixed coordinate system ENU = East, North, Up coordinates, ...
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2answers
64 views

qgis polygon to coordinates

I have the ordnance survey postcode polygons, i can get the centre point on the postcode (Using polygon centroids) and all the corner coordinates (using extract nodes) Does anyone know how to export ...
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2answers
65 views

Create Geographic Reference for X,Y Coordinates [closed]

I have a set of x,y data that do not have any sort of geographic reference. I have lat/longs (WGS 84) for a small set of those points. How can I calculate lat/long for the remaining points so I can ...
4
votes
2answers
144 views

Why Different 2D Coordinate Transformation Methods Exist

It is a homework question but I couldn't find a satisfactory answer by googling. There are 4 different transformation approaches I'm asked for: - Conformal, - Affine, - 2D Projective, - 2D Polynomial ...
3
votes
3answers
296 views

Formula for coordinates (lat, lon), azimuth and distance.

I would like to know how to find a set of coordinates on a small circle some distance from another point. For example, lets say A = (39.73, -104.98) #Denver B = (39.83, -106.06) #point ...
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2answers
111 views

How to add Excel-sheets with meter coordinates to QGIS?

I have an Excel-sheet where the coordinates are in meters. What is the most efficient way of inputting this file to QGIS? There are thousands of files to put so please recommend some straight-forward ...
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votes
0answers
22 views

Hotlinking Images using PickListener(MOJO)

I have a class class MyPickAdapter implements PickListener { public void beginPick(PickEvent pe) {} public void endPick(PickEvent pe) {} public void foundData(PickEvent pe) { } }; ...
2
votes
1answer
121 views

Determine when I have crossed state line?

We are currently using the Google Maps API to get route information and total mileage but we would like to determine when we are crossing into a new state. When we return the route information we can ...
2
votes
1answer
99 views

What do different realizations of the same datum have in common?

Firstly, am I correct in assuming that the process of determining the shape and the size of the spheroid is independent from the process of determining the origin and the orientation? For example, ...
1
vote
2answers
106 views

Saving a gml layer does not change coordinates

I am trying to export a gml layer to geojson with lat/lng as the preferred coordinate system. So what I did was a 'save as' on the layer with selected CRS: 'IGNF: WGS84G'. Now I was hoping it ...
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0answers
53 views

Coordinate points don't show on correct location in the open layers plugin Qgis

I know there are several questions concerning the open layers plugin and CRS's. I tried several things, but none of it solved my problem so far. For a rural area in Nepal a little healthcentre wants ...
3
votes
4answers
184 views

what is the suitable projection coordinate system for Iran

I am doing analysis for province wise Iran. I am using WGS1984 as my geographical coordinate system, and I do not know which is suitable Projection coordinate system for entire Iran. I feel the UTM ...
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2answers
138 views

Coordinates values change for ArcGIS

I have received thousands of location information like below. X= 10°52.579 Y= 078°38.473 I don't have idea in which format is this, please let me know what is the format of this location and ...
0
votes
1answer
563 views

Coordinate conversion - Lat Long to State Plane, ArcServer-Silverlight

I am trying to project a Lat/Long value I get from a table to a x/y value that I can use to plot a graphic. I have seen one way to do this may be to use something like this: feature.Geometry = ...
2
votes
3answers
220 views

Ordnance Survey 1 km Grid

I am wanting to get a copy of the OS 1km Grid layer. I have found these previous questions: Ordnance Survey grids - download or generate? and Ordnance Survey Grids But neither provide the ...
2
votes
1answer
32 views

Get coodinates from point shapefile

I converted a line shapefile to points as you can see in the attached image. Is there a way to know the coordinates of each point? Any help would be really appreciated! PD Im using QGIS 1.8.0
2
votes
0answers
168 views

How to add XY coordinates (latitude/longitude) to a DEM raster in ArcGIS 10.1

I would like to add xy coordinates of about 10 sites to a raster. I am using ArcGIS 10.1 and my xy coordinates are on Access 2013 database - saved as .mdb. The steps I have taken so far: 1) In ...
4
votes
1answer
555 views

Why does Calculate Geometry give incorrect number of decimals for Longitude?

intermediate ArcMap user here. I'm trying to calculate the geometry for a shapefile such that I can add lat/long columns to my attribute table. While I have no trouble calculating the latitude, the ...
1
vote
1answer
74 views

How to calculate weighted mean coordinates with negative weights in QGIS?

Hi, I'm pretty new to prof. GIS, but have OSM experience. So if I just miss something obvious, please don't punish me :) I have a .CSV file with measurements of wifis along a track. I like to guess ...
4
votes
2answers
199 views

How to get XY coordinates and field values for each row in a SearchCursor?

I am trying to enumerate each row of a points shape file and get a certain field's value (elevation) and the xy coordinates. But I see I can only use: arcpy.SearchCursor to get the field; OR ...
2
votes
0answers
78 views

How to locate a house on the 3D Map correctly?

I've done my 3D map generation in WebGL/THREE.JS project and have an issue with the building locations. I have the data about building position ( its polygon ) from DB server, but first of all I want ...
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0answers
55 views

Error north coordinate not allowed using r.water.outlet in GRASS

When I am trying to delineate a basin from this code: r.water.outlet drainage=drainage1 basin=basin1 \ east=518675.070417019 north=911542.292643082 Coordinate system: UTM-cartesian xy (used by ...
1
vote
1answer
128 views

Google Earth tour LookAt not looking at same place as Placemark with same coordinates [closed]

I have tried to create a tour from a csv file. I want the tour to look at each Placemark in turn but the view is of a different set of locations when run in Google Earth. The Placemarks are plotting ...
0
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2answers
373 views

Find longitude for point between two coordinates with pyproj?

I've written a function to get the longitude of a point of known latitude between two known points (might not be working correctly yet), but I feel like there must be a better way of using pyproj to ...
0
votes
3answers
487 views

Seeing lat, lot coordinates in raster and getting pixel value

I am new to QGIS and I have a simple question. How can I get the pixel value at a given latitude and longitude coordinate in a satellite raster image? Related to this, I cannot see the latitude and ...
2
votes
1answer
171 views

How to smoothly join two rectangles

I am looking for the Math and steps involved not using a tool. We have PostGIS but its an old version so we are working with the data in Python. Given three coordinates: -107.37, 52.46 -103.24, ...
1
vote
2answers
143 views

Automatically create polygons from top right and bottom left coordinates?

I have a CSV file with hundreds of records. Each record contains 2 matching coordinates, 1) top right corner of a rectangle, 2) bottom left corner of a rectangle. Polygon ID, Lat 1, Lat 2, ...
1
vote
2answers
320 views

How to remove z & m coordinates from shapes with QGIS? (Or arcgis, grass, gdal, Python…)

I've recently received some parcel data in shapefile format that has z & m coordinates (all = 0.0). The WKT for a typical parcel looks like this: "MULTIPOLYGON (((2672464.560700002 ...
0
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1answer
55 views

Get rectangle's coords in php

I'm trying to create a script which i give the center of a rectangle (in coords) and the preferred width and height (in metres) and return me the coords of four angles.Any idea about the ...
1
vote
1answer
59 views

Draw an item from coordinates in QGIS?

Is it possible to draw a line or to draw a triangle or another figure by digit the coordinates of the vertex? I use QGIS 1.8 on windows 7 system.
2
votes
1answer
182 views

Moving a shapefile point to specific coordinates

In QGIS is there a simple way to move a shapefile point in a shapefile point file to specific coordinates? Without exporting the points to WKT changing the x,y values and then importing the WKT via ...
1
vote
1answer
45 views

Transform an Irish grid reference (29903) into UK grid reference (27700) on insert

I have an insert script to input several hundred points, however some of the points use the Irish Grid Reference system. I have separated these out however was unsure how to convert or transform? ...
3
votes
3answers
470 views

Converting coordinates: Feet to Degrees-Minutes-Seconds

I have a point shapefile and I want to get the coordinates for each point in Degrees-Minutes-Seconds format. When I use Add XY Coordinates (Data Management) it gives me the coordinates in Feet format. ...
2
votes
1answer
219 views

How can I show points on the same coordinate as e.g. a bigger symbol in QGIS?

I use QGIS 1.8 for mapping archaeological findings. Some of the findings within one layer are located on the same site and therefore have the same coordinates. Therefore you just see one point instead ...
1
vote
1answer
79 views

produce a grid of geographic coordinates within 1 mile of each other with QGis or PostGIS

For a given county (bounded box, lets say), I need to get a network of gps points such that each point is 1 mile from its nearest neighbor point in each cardinal direction. The result of this initial ...
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1answer
1k views

How Can I change the projection of shapefile in Qgis?

I have a probleme with Qgis. I would like to change the projection of my shapefile, it's about caves in my country. The default projection is set to EPSG:3003, I want to change it to wgs84 EPSG:32632. ...
1
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0answers
101 views

Converting custom grid to OS grid

I have two sets of data, one is in OS coords, no problem there, but the other was set out in about 50 off 10x10 metre grids aligned to a 'feature' on the ground. I do have the OS coordinates of their ...
0
votes
1answer
84 views

Shapefile rotated after displayed on Bing Maps

I took shapefile of country here http://thematicmapping.org/downloads/world_borders.php Then opened in QGIS, after that save needed layer to KML file and took coorditaes for displaying polygons var ...
1
vote
1answer
446 views

Leaflet Custom menu links

I have an issue where leaflet when embedded in Drupal will not allow the user to click on the map as the Y coordinates have a decimal on for some reason. As a quick fix, I am thinking to put the map ...
1
vote
3answers
273 views

How to export xy-coordinates from a line segment

I need an export of xy-coordinates of line segments (Quantum GIS). I found an answer to a similar question here but that concerned only xy of the first and last vertex of a line segment. But I need ...
3
votes
1answer
126 views

How to center the map based on some (x,y) in QGIS?

I want to center and recenter the map loaded on QGIS using constantly changing (x,Y) Point. How should I do this using some code? My GPS device will write (x,y) to a text file. From there I get (x,y) ...
2
votes
1answer
125 views

How do I calculate the coordinates of the median point of a polyline?

I have a shapefile with some polylines. For each one of these polylines I'd like to calculate the median of the polyline (i.e. the point that's equidistant from each end) and then, calculate its ...
2
votes
2answers
931 views

which is the suitable Geographical Coordinate System and Projected Coordinate System for India

I want to create a spatial data for entire India, usually I use WGS84 as GCS and UTM zones for PCS in the places in India, but when I have to create the spatial data for entire India, I get confuse ...