Questions tagged [convert]

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

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4
votes
5answers
364 views

How to read/convert arc000dat files?

I have a number of files that I am trying to import, but I'm just failing at the first hurdle. I've got a directory structure and file list that looks like this: Directory of C:\blah 01/04/2011 ...
9
votes
0answers
3k views

Open source alternative to FME from Safe Software for Spatial ETL? [duplicate]

Just wondering if there is any open source solution which comes close to safe FME? I would like to integrate it into my workflow, but it´s just another few thousand which my employer has to give out ...
2
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2answers
3k views

How can I convert geoJSON data to GPX format

I want to know how I can convert geoJSON data to GPX format.
3
votes
2answers
17k views

How to convert from UTM Zone 36N Mercator to WGS 84 degrees of lat and long?

I have acquired many coordinates from a points I extracted from polygons. The points are in WGS 84 UTM Zone 36N, and I want to use them on Google Maps. I found out that they use different systems (I ...
5
votes
1answer
657 views

EPSG operations and operation methods

Querying through the EPSG database, I can see the tables epsg_coordoperation where transforms and conversions between different CRS are stored, and epsg_coordoperationmethod which stores the ...
1
vote
0answers
189 views

How CONVERT a lat/lon point TO a x/y point ON a world mercator proj image in JS?

Thx to read and think about my problem! :) I have a map world image like that (mercator proj): http://www.learnnc.org/lp/multimedia/14596 And I have a lat/lon point to place on it in javascript, I ...
1
vote
3answers
33k views

Converting shapefile to raster using ArcMap?

How do I convert a shapefile to a raster image using ArcMap 10? What functions within the conversion toolbox do I use?
2
votes
1answer
15k views

Transforming shapefile into raster file in QGIS? [duplicate]

I'd like to transform a shapefile into raster file in QGIS and the opposite way back also (raster to shapefile). Can you help me?
27
votes
4answers
74k views

Converting vector layer to raster using QGIS?

In qgis in the raster menu there is an item "convert vector to raster". This behaves strangely - I do not understand how it is supposed to work. I can select a vector file, an attribute and an ...
5
votes
2answers
1k views

Is it possible to generate a vector polygon from a polygon on a raster image?

I have a raster map which I have extracted from a government report providing flood extent return frequencies. I want to 'snatch' these flood extent polygons (i.e. convert to vector) and I was ...
1
vote
1answer
386 views

Plotting Smith and Sandwell global seafloor topography grids in ArcGIS Desktop?

Does anybody have any experience with plotting Smith & Sandwell 2-minute Mercator-projected grids in ArcGIS? I've downloaded one in two formats: ers and img. I've found tools for processing .img ...
4
votes
2answers
13k views

Converting TAB to MIF / MIF to TAB

How I can export (import) data from TAB format to MIF and vice versa?
4
votes
2answers
3k views

IDRISI .vec file translator to ESRI shapefile format?

I've recently got hold of almost 20 years old IDRISI .vec files which I'd like to convert to ESRI shapefile. I've been struggling to find any translator for this file format so far. Does anybody know ...
12
votes
4answers
3k views

Combining corner-touching polygons into a single feature

I have created a polygon layer from rasters, and only have a single classification ID (and calculated acres) for each polygon. I would like to "dissolve" all touching features into larger, individual ...
2
votes
1answer
247 views

Clipped data not going into folder using arcgisscripting?

I created a model in python that clips and converts different data sets into DWG based on the the grid number. I will like the DWG data (Output) to go into the folder I created as part of the ...
6
votes
1answer
1k views

Convert point XY to page units XY using arcpy?

I am using arcpy to export PDFs from my ArcGIS Server application. I want to move a TextElement in my layout view to the centroid of a selected feature. I can get the centroid of the feature, but that'...
0
votes
1answer
7k views

How can I convert SRTM data to DEM or DTED?

i am working on a project which is not commercial and i need some digital elevation data for visualization. in net i have found a link and i have downloaded .asc data from following link.. SRTM Data ...
6
votes
2answers
4k views

ogr2ogr kml to shp conversion created 184 shapefiles?! What am I missing?

I'm trying to convert this KML dataset of ice arenas to a shapefile using ogr2ogr (GDAL 1.8). After some initial troubleshooting to get the script running, it's creating 184 different shapefiles (736 ...
3
votes
1answer
257 views

rgb2pct.py increases size of file 20 fold!

I wanted to reduce the number of bands of a tif file from 3 to 1... I used this command rgb2pct.py -n 256 fnp_braunschweig.tif fnp_bs.tif and it increased the size from 31mb to 778mb I actually ...
1
vote
3answers
2k views

Why does ArcGIS 10 Convert Time Field geoprocessing tool return <null> when using custom format?

I have dates in my attribute table that are stored as strings - they look like 02/22/2012 (mm/dd/yyyy) - and I would like to convert them to Date type. When I try to input a custom date format in the ...
2
votes
1answer
2k views

Looking for a pure Python method to convert Lat/Long To MGRS

Does anyone know of any packages out there that implement a pure python method to convert lat/long coordinates to MGRS coordinates? PyPi has a package, but it requires some c-extensions from ...
40
votes
2answers
42k views

How can I convert data in the form of lat, lon, value into a raster file using R?

I have a data set of values over a km grid in the continental U.S. The columns are "latitude", "longitude", and "observation", e.g.: "lat" "lon" "yield" 25.567 -120.347 3.6 25.832 -120....
2
votes
4answers
15k views

Converting KML to layer in ArcGIS 10 - nothing happens

I have converted many KML files to layer in ArcGIS many times before without any problem. I just did a conversion (Arc Toolbox>Conversion tools> KML to layer) and the file is showing up in the table ...
2
votes
1answer
827 views

Underground Utility using ArcGIS

Which software can I use for mapping of underground utilities? I am using GRED for marking of utilities & then transferring it to AutoCAD. Now I would like to load this AutoCAD file into a GIS. ...
2
votes
3answers
2k views

How to change DXF unit by Python 2.6

I have a bunch of DXF files to import into ArcGIS 10 but they are all in mm. However I need to change the unit to Meter and to do this I have to open AutoCAD to do it each time. Can anyone help to ...
1
vote
0answers
955 views

ADC Maps Grid to Lat/Long Coords Conversion

While the ADC site apparently has a paid conversion function, it's interactive, and I'm looking for some way to do so on a batch basis, possibly with an API. Any hope?
1
vote
2answers
3k views

How to get a slippy map from OziExplorer .map and .png tiles?

I have a bunch of topographic maps in the format of .map files and 4000x4000px png files.I would like to view them as a slippy map and be able to select an area and export that as one big image. I am ...
2
votes
1answer
2k views

Convert Features to Graphics

I want to convert selected features to graphics and keep the featuere symbology. I was thinking I could just call the UID command below, however it seems to not be working? Dim pUID As New UID ...
10
votes
2answers
733 views

What is the correct way to convert a USGS Orthoimage from WorldImage format to tiled GeoTiff for GeoServer?

USGS provides different resolution orthoimage quadrangles in the WorldImage format (*.tif with an accompanying *.tfw world file). Some of these quadrangles can be used by GeoServer (2.1.0 - 2.1.2) by ...
3
votes
0answers
111 views

Determine the Degree of Data Lossiness when Converting Data

I'm working through some of the ESRI tutorials on Data Interoperability and it briefly mentions the issue of data conversion being a lossy process. Some questions that come to mind are: What is ...
4
votes
2answers
2k views

ImageMagick's convert program changes PNG file format so that color/alpha info doesn't survive GDAL

It appears that ImageMagick's convert program changes something in my PNG file that causes GDAL processing to mess up the color and/or transparency bands. My original PNG file gets processed ...
5
votes
2answers
246 views

Vectorize cell boundaries in GRASS

I need to vectorize the cell boundaries of a raster map and I have forgotten how to do this. For instance, if I have a raster map of a region that is just map=1 with a cell size of 500m, I would ...
9
votes
1answer
15k views

Batch converting Garmin GDB to GPX?

I need to convert a lot of garmin GDB files to GPX in order to convert it to another vector format. Is there any tools available can do a batch convert from garmin GDB files to GPX? Using MapSource ...
5
votes
4answers
5k views

Converting orthophotomap to .ecw file? [closed]

I am looking for a method for convert orthophotomap (.adf files) to ERDAS .ecw file. Have you got any ideas ? Or maybe you have got any other idea how i can reduce a size of orthophotomap .adf ...
11
votes
6answers
20k views

Batch convert GeoTIFF's to KMZ files

I have about 600 GeoTIFF map files, each about 140 mb in size that I'd like to convert to KMZ files so people can download them and use them with Garmin GPS units, Google Earth, etc. Anyone know an ...
-1
votes
2answers
2k views

Projecting data from WGS84 to NAD27 UTM BLM Foot ArcMap

When I use the NAD27 BLM 15N prj from the projected>>UTM>>north america>> in ArcMap 10.0 and go from WGS84 to that..using the NAD_27_To_WGS_84_1 transformation..my resulting shapefile doesn't line up ...
0
votes
1answer
138 views

Programs to log NMEA on Nomad 900?

I am interested in logging NMEA data on a Trimble Nomad 900. Unfortunately the SatViewer records a maximum of 64,000 characters, too little for my application. I don't want to have to purchase ...
5
votes
2answers
553 views

Is there a simple way to detect what generation a MrSID file is?

I just found out there are a few types of MrSID files - generations MG2,MG3,MG4. As I have a user which uses Bentley Microstation V8 and apparently can see only some of the generations (and thus I ...
0
votes
1answer
2k views

How to convert dbf to raster the short way?

I have got a dbf file and I want make it to raster file but the short way, Look at my long way, First i add my dbf file and i create tin http://i1211.photobucket.com/albums/cc421/mtnkou/2.jpg at ...
2
votes
2answers
3k views

How to convert from GeoTIFF to PNG/JPG and Web Mercator in Java?

I'd like to convert raster image from (geo)tiff to an png/jpg and afterwards if it is necessary ... I'd like to convert the coordinates with help of EPSG-Codes to the OSM/Google Projection(EPSG: 3857/...
3
votes
2answers
13k views

OpenLayers LatLon conversion

I have an OpenLayers map with a settings like a below. All LatLon points are represented like a POINT(3684182 5207957). In a more usual form (for me) it looks like a (104.287422, 52.284126). How can I ...
4
votes
3answers
5k views

Export georeferenced image overlay from KML?

How might one export image(s) from image overlays in a KML file to a standard geo-referenced raster format like geotiff? Use case: NASA's Earth Observatory has a time series of the changing Athabasca ...
9
votes
3answers
18k views

Using ArcMap, how may I convert a shapefile to use decimal degrees?

I have a shapefile that currently uses meters as the measure for its coordinate system, but the map framework I wish to use expects decimal degrees. I'd like to reproject my shapefile to use decimal ...
15
votes
2answers
5k views

How can I fix my complex Polygons so they show correctly in Google Maps?

Problem: I'm trying to find a way to fix some broken polygon shapes and I'm not sure how I can do this. Details: I've got a number of polygons which I basically imported from TIGERLINES a while back....
24
votes
5answers
4k views

Alternatives to ogr2ogr for loading large GeoJson file(s) to PostGIS

I have a 7GB GeoJson file that I would like to load into a PostGIS database. I have tried using ogr2ogr but it fails because the file is too big for ogr2ogr to load into memory and then process. ...
15
votes
3answers
3k views

ogr2ogr fails to convert GeoJson file > 200MB

As a followup to my previous question (Converting SimpleGeo Places GeoJSON file to shapefile), I am now struggling with what I perceive might be an ogr2ogr "memory" limitation, but I cannot be sure. ...
14
votes
3answers
41k views

Shapefile attributes to Autocad Annotation

How can I export the attribute information for the shapefile/feature class to Autocad Annotation/Text? I'm able to export the shapefile to autocad but unable to get the attributes in annotation. ...
2
votes
2answers
3k views

Converting ASCII grid/NTF to SRTM/DEM

I want to use the Ordnance Survey Land-Form Panorama product in some software called Maperitive, which can read custom SRTM DEM files. The data is provided in the following formats: DXF [Contours] ...
5
votes
2answers
1k views

Lightweight python modules to convert LAS data formats to text formats?

I searched on the net and found pyLAS, but it seems to require quite a few other modules and I couldn't get the install right. Any pointers will be much appreciated.
7
votes
3answers
4k views

Convert Postscript (*.ps), Encapsulated Postscript (*.eps), or Adobe Illustrator (*.ai) files to shapefile?

Are there any programs which can convert from Postscript, Encapsulated Postscript, or Adobe Illustrator file formats to a shapefile? What about adding geo-referencing? I'm also open to recipes using ...