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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3answers
56 views

QGIS export feature coordinates

I have a big project (whole country) and it contains smaller features (administrative units). My project is in .shp. How to export features' coordinates one by one or all at once as long as all ...
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0answers
39 views

How to get the coordinates of the x-axis from a profile graph in Arcmap?

I have done already a profile graph in ArcMap drawing a diagonal line over a DEM image. Now I would like to add some point locations as it is showed in the attached figure. I set these blue points in ...
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1answer
32 views

updating Z coordinates of points in polylines

I have a polyline feature dataset with Z coordinates. I'd like to change the Z values (e.g.) by adding 10 meters. I am trying the following code, but no changes happen. It seems the code is able to ...
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0answers
7 views

Geo-Referencing an image from google maps with gdal_translate [duplicate]

I am trying to geo-reference an image using gdal_translate in a command prompt. Currently I have the following gdal_translate.exe -of GTiff -a_nodata 0 --config GDAL_DATA "Config location" -a_ullr ...
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0answers
47 views

GeoServer TMS with leaflet coordinates are different

I use the example tiger-ny layer from geoserver with leaflet like this: var map = L.map('map').setView([62.92578, 32.08523], 13); ...
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0answers
35 views

create polygons using 2 coordinates

I have a script that creates a text file containing the upper left and lower right coordinates of my geotiff files in the following format. TileName UpperLeftX UpperLeftY LowerLeftx LowerLeftY I ...
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1answer
47 views

Using pysal to map location of coordinates?

I am trying to map which county a set of coordinates I have are in. I want the code to go through each coordinate, check which county it is in, and then print the corresponding county. However, ...
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2answers
46 views

QGIS, indoor map with relative coordinates

i am trying to create an indoor map with relative coordinates where the bottom left hand corner of the map is (0, 0), and the CRS is UTM, so the distance between coordinates is in meters. previously ...
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2answers
40 views

What data projection should I use for area analyses in different countries at a global scale

I'm creating A4 maps to show where forest cover and mining fields overlap across the globe. Each A4 map focuses on a specific country (e.g. India, USA, China, Australia...). For each country, I need ...
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1answer
42 views

OpenLayers 2, GeoJSON cant get coordinates to work

I'm trying to display some Polygons on a map, and I'm new to OpenLayers, maps and GeoJSON. First what work: vector1 = new OpenLayers.Layer.Vector("GeoJSON1", { projection : "EPSG:4326", ...
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0answers
12 views

Increment GPS coordinates by a certain distance given in meters [duplicate]

Say I have this point: 45.1200,10.5000 From there I want to create another point that is 20 meters north and 10 meter east from the previous point. Is there any equation I can use for doing this?
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0answers
32 views

Converting 3d images in meters to feet when exported to dxf

In QGIS 2.10, I am using the raster calculator to convert a metric elevated raster to feet and then create 2 foot contours (no problem). But when I dxf it out and put it in CAD, I can get the contours ...
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0answers
83 views

Getting random coordinates based on country

Are there any webserveices/APIs that can take a country name and return a random coordinates (not including the sea/ocean sections) inside that country?
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0answers
32 views

GPS point elevation vs Contours layer elevation

I have some survey grade GPS points whose elevation is approx 55 feet lower than my contours layer elevations. I am using 1 ft contours and comparing point elevations with contours in the same ...
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1answer
78 views

Adjusting UTM and geographic coordinate data

I have a dataset with several points in space within a given area. UTM coordinates (easting, northing in m) or geographic coordinates were recorded for a single point in the vicinity of these points. ...
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0answers
48 views

Opening shapefile and Tiff layer Coordinates do not match up

I am new to using QGIS and am having a major problem. I have the UK Ordnance Survey (OS) 1:25000 raster layer in Tiff format open. When I open a shapefile or mapinfo vector layer on top of it the ...
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0answers
11 views

NBI Coordinate Data Missing place-holding zeroes for DMS format

When working with National Bridge Inventory (NBI) coordinates I have found what appears to be an error in the raw data provided. I couldn't find any other mention of this specific error when ...
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0answers
78 views

Schematic Map in GIS Tools?

The Question: Is there way to leverage GIS tools to author/edit a schematic map where elements' geometries has canvas-based coordinates rather than real-world coordinates on Earth? Perhaps to ...
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0answers
36 views

Finding specific area with coordinates out of a lot of LAS data?

I would like to extract spatial data out of a great amount of LAS data. Unfortunately, there is no index or sth that could help me find which file is for what area. Also, it is not possible to ...
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1answer
161 views

SharpMap Coordinate transformation Problem

Hey guys i want to transform my layers from SRID 31463 (Gauß Krüger) to Webmercator. Since SharpMap does only know webmercator and WGS84 i tried to create the Coordinate System 31463 by WKT and ...
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1answer
57 views

Capturing coordinates via snap with QGIS

I would like to know if there is a way to get and extract the coordinates of a node (one of the node that conforms a polygon) in order to use these pair of coordinates to georeference a DXF file, ...
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0answers
102 views

extract x-y from a point created from lat/lon coordinate

Using QGIS 2.8.1, how can you create a point in WGS 84 using a lat/lon and extract X and Y value of this same point in CRS UTM34N. For eg, you have been given a lat 20 deg and lon 50 deg. Create a ...
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0answers
145 views

How to determine ring orientation from lat/long coordinate points?

We have some set of point coordinates in lat/long which contribute to a polygon. From this set how do we determine the polygon is clockwise or anticlockwise?
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1answer
83 views

how to produce a RASTER representing X coordinates [duplicate]

In a journal article I have read that two rasters, representing X and Y coordinates respectively (see attached figure), have been entered as predictors in a GIS-based Logistic Regression for a given ...
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0answers
26 views

How to best import a US Map Schematic?

I would like to use the following wiki US Map schematic as a background to my map work. (http://en.wikipedia.org/wiki/File:Blank_US_Map.svg) It is a .svg file, and GeoReferencer is unable to import ...
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0answers
35 views

Coordinates interpolation for video frame synchronization

I'm taking an aerial video with gps coordinates. Here's the problem: the video is x frame at second, and the gps module gives me coordinates every second. So I've the coordinate of the first frame for ...
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0answers
35 views

Discrepancy between importing same data from CSV and GPS [closed]

I have been importing similar data by using two different methods: Entering the coordinates manually in excel and save as CSV, then importing in QGIS through delimited text layer. Column A is name, ...
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0answers
73 views

Identify coordinate system used near Kuala Lampur

I have some coordinates that were given to me, and I do not know much about how they were taken. I thought they were UTM coordinates, but when I try to convert them using some online tools I always ...
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0answers
36 views

QGIS Server Coordinate Switch

I installed QGIS Server 32 bit through OSGeo4W as a localhost service on my Windows machine as of underdarks tutorial QGIS Server on Windows7 I do get my wms up and running but I'm a bit confused as ...
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1answer
82 views

Coordinates for specific points calculated in QGIS Field Calculator?

I have got a layer in QGIS that is comprised of connected points which define regions of a country, thus the attribute table consists of 38 regions while the number of nodes in this layer is about ...
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1answer
221 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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1answer
101 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 ...
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0answers
50 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 ...
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0answers
48 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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1answer
47 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 ...
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0answers
81 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 ...
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0answers
31 views

Get response from geo server without Coordinates

I have following url of geo server layer, It takes very long time to get response ...
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1answer
73 views

Why are my points offset when using the Go to XY tool?

I am creating points in ArcGIS 10.1 to add to a GPS so I can navigate to them in the field. I add my points by editing an empty shapefile created in ArcCatalog. I then Add Field: Lat and Long as ...
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0answers
70 views

set extent for jpeg programmatically

I feel like this should be easy, but how can I set coordinates for a jpeg image using Python? I have a python add-in that draws a polygon and then uses its geometry to post a query request to a REST ...
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1answer
307 views

How to calculate the shortest geographical distance between a line and a point? [duplicate]

I'm trying to calculate the shortest distance between a line (described as a pair of [lat, long]s) and a point (lat, long) accurately. I've read many Wikipedia pages, but I'm new to the topic. I've ...
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0answers
51 views

Does Unicode Common Locale Data Repository (CLDR) library have rules for longitude/latitude coordinates?

Does the Unicode Common Locale Data Repository (CLDR) library contain rules for formating longitude/latitude coordinates? I am looking for information how coordinates should be formatted in each ...
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0answers
133 views

Rounding off coordinates in an SpatialPolygonDataFrame in R

EDIT AFTER COMMENTS After a comment of Whuber (Thank you!) I realized it will probably be most easy to incorporate a round(...) statement within my code to be able to work with less decimals. ...
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0answers
56 views

My map is little bit off

I am pretty new in GIS things and i have been learning how to use QGIS. Most of the maps are fine, but yesterday I went to GIS center at my University and I got the maps of my country that I will be ...
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1answer
135 views

Finding coordinates of the image corner

I have a .bmp image with a map. For creating image i used a Ingeo 4.4 and function MakeImage() What i know: Height an Width of bmp image dpi Map Scale Image Center's coordinates in meters. What i ...
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1answer
96 views

How can I shift raster layer for making cloud-shadow mask?

I want to make cloud shadow mask in QGIS. I have raster cloud mask and I have to shift it by X,Y coordinates. Is there any easy solution?
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1answer
104 views

What UTM like coordinate system is this?

I have this set of coordinates: 4622580.00000, 503749.00000 They should roughly correlate with 51°01'39.4"N 13°44'44.2"E in Dresden, Germany. At first I thought they might be UTM, but that puts me ...
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0answers
137 views

GRASS and r.viewshed

I'm trying to run the r.viewshed command using co-ordinates held in a .csv file I imported using v.in.ascii. It has over 200 rows and I'm looking to run viewsheds from each line, without doing it ...
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0answers
64 views

Finding X,Y off of PDF and input into shapefile [closed]

I have this as the Point of Beginning for a legal description (mineral deed) X,Y (X= 2,614,055.44 and Y= 481,876.17). I did the ADD X,Y with the coordinates at WGS1984. It shoots way off course even ...
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0answers
118 views

LLA vs ECEF--which to choose?

I will be providing points in 3D to an external source via XML. One coworker suggests Lat/Long/Alt and another suggests ECEF. We can do either without much trouble. We have an existing product that ...
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0answers
158 views

recalculate latitude and longitude from a pixel in a cropped map

i want to recalculate a geographic coordinate from a pixel in a map. For this i have the size and the coordinates from the map to convert a coordinate to a pixel is use the algorithm, you find at ...