"Convert" usually tags questions where a change of physical file format or of coordinate representation is needed.

learn more… | top users | synonyms (1)

1
vote
1answer
302 views

Looking for a GeoJSON describing the french departments

Is there any place where I could find a GeoJson describing the borders of the french departments, or do I have to convert a .shp file?
1
vote
1answer
575 views

Python GDAL: degrees to meters without reprojecting

I am trying to get senseful results in my Python script. I want to measure distance between features in a shapefile. I'm working with the SRS: GCS_WGS_1984, so my units are in degrees. But for the ...
1
vote
1answer
140 views

How to iterate all input folders (containing coverages) using Python with ArcGIS 9.3?

I'm trying to write python scripts to batch convert thousands of coverages to shapefiles in arcgis 9.3. The coverages files are in different folders: d:/area_A/building d:/area_B/building ...
1
vote
1answer
276 views

How do I convert 3tm to lat-lon

I'm unable to find out a formula for converting 3tm coordinates to lat-lon? 3tm is a system used in Alberta alone, as far as I can tell. The city of Calgary uses that for its opendata, which is what ...
1
vote
3answers
1k views

Searching for c# code to convert from UTM to WGS1984 (and back)

I'm looking for code in c# that converts coordinates from UTM to WGS1984 (and preferably backwards as well). I need to convert coordinates from only one zone (36N). I've found this and this, but they ...
2
votes
1answer
417 views

What is the formula to convert WGS84 coordinates to EPSG 2163?

I'm looking for the formula which converts wgs84 coordinates to epsg 2163. I know that QGIS can do the calculations but I need the exact formula. Cheers!
1
vote
1answer
134 views

Raster to polygon conversion's raster field takes only “Value”

Recently I am working with raster data and arcobjects.net. Here I find something new for me. And here some question arises in my mind. I tried to search some document that can satisfy my mind, but I ...
2
votes
1answer
457 views

ArcMap 10.1 convert layer to CAD - clipping only desired area to send out to DWG

Is there a way to covert a layer to DWG such that only the desired area of the layer is exported out to a DWG? My issue is that the layer (parcels) contains all parcels for an entire county, so it is ...
0
votes
1answer
102 views

How to hide/suppress and rename/alias fields when exporting to KML?

I have a feature class that needs to be exported to a KML file. I wonder if there is a way for me to export only some of the columns of the feature class's attribute table; some attributes are not ...
3
votes
2answers
2k views

How to generate a DEM from a contour Shapefile?

I want to create a DEM from depth contours (shapefile) in QGIS. I've been trying to work out how to do this based on this previous question, notably from this link from that page, however I'm stuck, ...
1
vote
1answer
514 views

Converting avl to sld or qml

Is there a simple way to convert a avl file into a sld or qml? Deegree does not work an my laptop (java problems) Or is there a way to open the original avl file in qgis? Thanks
0
votes
2answers
2k views

convert geotiff to simple xyz elevation file?

I have looked everywhere and can not find a tool to convert a geotiff file to a simple ascii elevation file... did I miss something? thanks for any pointers!
1
vote
0answers
1k views

convert GPS to XY coordinates

if i have obtain GPS coordinates as Latitude/Longitude, then i need to convert them to XY coordinates, i see this link actually i need to get the Trilateration , in its equation i need the XY ...
2
votes
1answer
227 views

ArcGIS JS API Polygon's WKID conversion with gsvc.project

I'm trying to convert polygon from wkid 3301 to wkid 4326. I've been using this code snippet for converting points, but I'm not sure how I would accomplish this to create a polygon object. I'm not ...
1
vote
1answer
865 views

postgis distance calculation between points with lat, long coordinates

Team, I am new to postgis, but a postgres user for quite a while. I would like to compare the geospatial capabilities between postgresql and mongodb. I have the lat.lon, zip code of US locations; ...
2
votes
1answer
350 views

MrSid => GeoTiff

I have a MrSid file that I would like to convert to a GeoTiff. Is there a way to do this on a Mac running Mountain Lion? I know it can be done on Windows and Linux using the LizardTech command line ...
12
votes
1answer
526 views

How to rename field names in a shapefile from the commandline?

I need to rename the field names (attributes) in a shapefile. Is there an easy way to do this from the command line?
1
vote
1answer
326 views

find euclidean distance in GPS [duplicate]

i need to find the distance between two gps location, So i think to do this: lat1(seconds)-lat2(seconds)=lat * 30.7151 == distance latitude in meters =Latm long1(seconds)-long2(seconds)=long ...
6
votes
4answers
2k views

How to convert geometry to WKT using ArcPy?

I would like to be able to convert a single feature (or potentially many features) in an ArcGIS layer into Well Known Text (WKT) format during a geoprocessing operation using Python and ArcPy (no ...
4
votes
0answers
205 views

What traits identify 2D, 2.5D, 3D geometries, and how can you convert downward, such as from 2.5D to 2D?

In answering this question, posed by @Burton449, I came to realize I don't have a definitive grasp on what distinguishes 2D, 2.5D, and 3D geometries. I certainly realize Z/elevation values are ...
-1
votes
1answer
288 views

Converting Easting, Northing, and Elevation to Station and Elevation

How can I convert x,y,z (easting, northing and elevation) data into station and elevation? I am trying to input the data into HEC-RAS, which only takes station and elevation.
1
vote
1answer
457 views

convert GPS to x,y using reference node

i am using sensor nodes and their antenna to calculate GPS coordinates as notation of (degrees/minutes/seconds), i have some question of how to do these things: how can i convert latitude and ...
0
votes
2answers
246 views

Why is QGIS reading in my CSV numeric data as string data, and how do I change it? [duplicate]

QGIS keeps reading in my numeric data from .csv files as string data. This means I have to figure out how to read it in with the proper data type, or convert it back to numeric inside of QGIS, ...
1
vote
1answer
243 views

British National Grid to KML results in offset polygons

I have a shape file of English wards from ONS. It is similar to the files available here: http://www.ons.gov.uk/ons/guide-method/geography/products/census/spatial/2011/index.html except I had to ...
0
votes
1answer
202 views

Using the API of QSpatiaLite plugin

I am using the popular QSpatiaLite plugin for QGIS. Since I am creating and modifying SpatiaLite tables directly with Python (using pyspatialite), I wonder whether I can automate tasks such as ...
3
votes
1answer
664 views

WGS84 - how to convert

I have multiple locations saved in WGS84 - it looks like e.g. latitude: 12345678 longitude: 87654321. I tried to search it on the map this way: 12.345678 87.654321, but it doesn't match the place it ...
2
votes
2answers
673 views

Reducing the resolution of a huge raster

I'm not much of a GIS user, but I've got a big ascii file that I'm trying to convert into a lat long data x1 y1 d1 x1 y2 d2 x1 y3 d3 x2 y1 d4 ... etc format, so that I ...
0
votes
4answers
259 views

Coordinates conversion doubt

In QGIS do I have a EPSG:4326 shapefile that shows the coordinates "-7148300 -3688500" and I need them in the format -64º -31º for further processing in a geodjango app. However using ogrinfo I get ...
4
votes
1answer
3k views

How can I convert a 10.1 mxd file to 10.0?

I upgraded from 10.0 to 10.1 for a few days. Due to conflicts with other packages, i had to downgrade back to 10.0. Now I cannot open any .mxd file I opened with 10.1. I did not create any with ...
1
vote
2answers
556 views

What software is available on OSX for working with DEMs?

I have several adjacent DEM files and would like to combine them into a mosaic and then export to DEM and TXT. I know a Windows solution is to use MICRODEM but before installing Windows 7 I would like ...
2
votes
1answer
3k views

How to convert a shapefile to WKT?

I'm trying to convert a shapefile into the simple Well Known Text (WKT) format in the example below (from http://en.wikipedia.org/wiki/Well-known_text). MULTIPOLYGON (((40 40, 20 45, 45 30, 40 40)), ...
0
votes
1answer
106 views

Convert feature to raster, not just the shape

First thanks for your Help I have been trying to find an answer on previous question but I could´t. I am trying to convert a shape file into a raster, but the ARCGIS gives values only to outside ...
3
votes
3answers
1k views

GDAL_translate: converting ESRI GRID to Geotiff in batch

The Challenge: To batch convert 1000 rasters in ESRI Grid binary to Geotiff using either using a batch file or Python 2.7 without ArcGIS/Arcpy module. The Tools: Win7Pro, GDAL 1.9.2 (via OSGeo4W), ...
2
votes
0answers
225 views

Best method to convert CSV file of lat/lon and depth data to bathymetry polygon?

I'm trying to create bathymetry polygons based on lat/long and depth data. I have tried several methods and the resulting polygons are clunky. Make XY Event Layer-->Copy Features--> Project--> ...
1
vote
1answer
422 views

Convert .mxd to .qgs, MXD2QGS fix?

I've had a look at the following thread about using MXD2QGS and so far I've figured out that this only works with version 10.0 and Python 2.6. I installed MXD2QGS on a machine with Arc10.0 and Python ...
3
votes
0answers
416 views

What is the best way to convert WKT String to GML String

What is the best way to programatically convert WKT String to GML String? Every reasonable library (at best available in some Maven repository) can be used. Till now I came up with this solution ...
3
votes
2answers
329 views

Why do I lose data after converting from .xlsx to .shp?

I have a fairly large excel file that I need to convert to a shapefile, but everytime I export the data, I lose a bunch of it. The excel file has about 277,000 records, but the shapefile will only ...
2
votes
2answers
204 views

geocoding addresses specifically into NAD1983 or converting X,Y into 1983 after geocoding

I'm going bananas trying to geocode addresses into a NAD1983. I have ArcMap 10.1 and I'm using the default address locator (North American 10.0 from arcgis online). No matter how low I set the ...
3
votes
2answers
955 views

Automating batch load of multiple GPX files into PostGIS

I've got 50+ GPX files that I would like to "batch load" into a PostGIS database. All of the track_points data would be loaded into a "track_points" table (with typical GPS fields like lat, long, ...
3
votes
1answer
893 views

How to convert jpg file to shapefile? [duplicate]

I am developing a GIS application like this: By now my steps are: I have got a jpg file, 5040 x 8179 dimension. In this map, the roads, rivers, towns etc. are marked. I am using .Net to develop ...
0
votes
1answer
2k views

How to convert AutoCAD file to Shapefile for map from ArcGIS API 3.2 for JavaScript?

I have an AutoCAD file that I want to convert to Shapfile to appear in a map by API for JavaScript in .net. What do I do?
5
votes
1answer
1k views

How to convert coordinates in a .csv into another CRS in QGIS

How can I convert coordinates which are stored in a csv and in a certain format in a different CRS, i. e. I want to convert GK 3 (EPSG:31467) into WGS 84 (EPSG:4326). I am using QGIS and already ...
2
votes
1answer
561 views

ArcObjects 10.1 .NET Convert Point from WGS1984 to OSGB1936

Please can someone help me convert a point in WGS1984 to OSGB1936, I have followed all the documentation (or so i think...) and yet have not made any headway into this problem. This is my code : Type ...
0
votes
1answer
158 views

Is it Possible to Convert a GRD File into an ASC File in QGIS?

Is it possible to convert in QGIS a GRD file (that was created in MapInfo) into an ASC file (that can be imported into SAGA)? Is it possible to "extract by mask" a section of a GRD file in an other ...
1
vote
2answers
248 views

Getting 2147483647 and -2147483647 as min and max output for point to raster, polygon to raster, and feature to raster tools

No matter which feature to raster tool I use (feature to raster, point to raster, or polygon to raster), I am getting a raster output whose min and max values are 2147483647 and -2147483647, ...
1
vote
0answers
158 views

Renaming Columns in Geotools FeatureType

I am attempting to build a simple java program that loads shapefiles into a Postgis 2.0 database. Everything is working out great except that I would like to be able to modify the FeatureType in the ...
-1
votes
1answer
479 views

layer to KML conversion [closed]

I am using arcgis 10.1 and my concern is to convert a layer to KML. The size of the layer that I would like to convert is of 7KB. For some reason it is being converted all the time with errors. Any ...
8
votes
1answer
3k views

How to convert GDB data to shapefiles without ArcGIS?

We've got some data (supposedly it's a simple collection of points--or at least that is all we need to extract) from a 3rd party in a GDB folder (I don't know how to tell what version) but we don't ...
0
votes
1answer
151 views

ArcGIS 10.0 Running Python function CADToGeodatabase() crashes ArcMap/ArcCatalog

My code: import arcpy, csv from arcpy import env dgnfile = str(arcpy.GetParameterAsText(0)) outFeatureClass = str(arcpy.GetParameterAsText(1)) #the fc in my fgdb template to be ...
1
vote
0answers
84 views

How do you convert an Imagine raster attribute value into the raster value?

I have a raster derived from image segments with row id as the value. I have an attribute in the attribute table which should be the raster value, "Standard deviation layer 5" (see image). How do I ...