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Questions tagged [file-formats]

A standard way that information is encoded for storage in a computer file

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Map formats supported by QGIS

May i know whether QGIS supports the following map formats? (1) S-57 Electronic Navigation Charts (Naval Maps) (2) Army/IAF Maps in DGN (3) DTEDO0, DTEDO1 and DTEDO2 (4) GeoTIFF (5) DTED
SureshBabu's user avatar
36 votes
5 answers
9k views

Advantages of using spatialite over shapefile? [closed]

I found spatialite more useful than shapefiles as it does not have the limitations of shapefile and it is also portable. Many people here use shapefiles to exchange data and even the experts do not ...
neogeomat's user avatar
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1 vote
1 answer
6k views

DTED Level 3, 4 or 5

Does the specification for DTED 0 - 2 also apply to 3 - 5? I know the finest resolution supported by spec MIL-PRF-89020B is 0.1 arc-seconds which I think would barely cover up through DTED level 4, ...
irtheman's user avatar
0 votes
1 answer
284 views

Issue with `-sds` naming convention in gdal_translate

I'm converting ~100 .hdf files to .tiff using gdal and getting some unfortunate naming conventions when using -sds for %A in ("...\*.hdf") do gdal_translate -of GTiff -sds "%A" "%A.tiff" However, it ...
Lovette's user avatar
  • 979
1 vote
1 answer
2k views

Import GPS data (text documents files) to QGis

I want to import GPS data (text document files) in to Qgis, what file format are you suppose to use ?
user21227's user avatar
0 votes
1 answer
584 views

how to export mdb to dgn file in qgis

I am having an (.mdb) file .I want to export this file to (.dgn) format .How can i do this in Qgis ? Is there any plugin available ?
Arun's user avatar
  • 1,462
0 votes
1 answer
1k views

3D Raster's and Geosoft Montaj/Target, Leapfrog, GoCAD [closed]

I'm trying to figure out what the best format to serve 3D images inside our company. Specifically georeferenced Tiff's that have been placed in 3d space with Geosoft Montaj. We use ArcMAP ...
cndnflyr's user avatar
  • 3,282
1 vote
1 answer
349 views

Which application generates *.MAG, *.MOB and *.CAR files?

I have following type of files (I have tried FME too.I think they are DGPS generated file?) ".MAG" , ".MOB" and ".CAR" extension files many more ".SES" ,"ERR", "LOG" several I have attached files ...
SIslam's user avatar
  • 3,486
15 votes
5 answers
3k views

Which data formats are best for Open Data distribution?

What are the pros and cons of different data formats (performance, file size, etc.) when considering open data distribution? Our organisation wants to publish data as open data. However, there is no ...
Mark Verschuur's user avatar
8 votes
2 answers
10k views

Can QGIS projects be opened in ArcGIS for Desktop?

I am about to start a project with a number of people for a nonprofit organization. I am wanting to create the files in QGIS, but some of the people that I am working with are city officials and might ...
AvidDabbler's user avatar
4 votes
3 answers
1k views

Which data formats can store Bézier curves?

I've heard that ESRI .gdb can. Are there other databases or file formats that can as well?
dericke's user avatar
  • 919
7 votes
2 answers
12k views

Converting .geotiff to .tiff

How do I convert .geotiff files to .tiff files (ordinary plain images)? Basically, I have cropped the image to a rectangle of interest and knowing its left-lower location and having chosen the pixel ...
jjepsuomi's user avatar
  • 345
10 votes
3 answers
15k views

How to open the Electronic nautical chart S-57 data?

Anyone know how to open the Electronic nautical chart S-57 data by using GIS software e.g. Arcview, QGIS? and converted it to general GIS / CAD formats.
wing suet cheung's user avatar
2 votes
2 answers
664 views

Raster format to read with python

I currently have a DEM raster stored in an ESRI geodatabase. I've been asked to create a purely python (e.g., no arcpy functions) program that works with the values. Therefore, I need to convert the ...
Erica's user avatar
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1 vote
1 answer
5k views

Retrieving info from GRIB2 file with JAVA?

I've just started parsing some info inside GRIB2 file with NOAA weather forecast, and I am realizing this task is not as easy as I could think 'a priori'. I need to process some info inside JAVA ...
elguime's user avatar
  • 61
4 votes
2 answers
1k views

What format is this data in?

I ran into a file today that is in a format I'm unfamiliar with, and I'm hoping that someone can identify it. The file extension is CTZ, but the only file type I found on Google with that extension ...
Brysonic's user avatar
  • 143
5 votes
3 answers
4k views

What is a simple binary raster storage format which ArcGIS can read?

I have a C++ program that manipulates raster digital elevation models. I have been using ArcGrid ASCII format for results. It is simple to code and gets the job done, but it necessitates a decimal ...
Richard's user avatar
  • 1,801
3 votes
1 answer
6k views

Can you explain this WKT multipolygon format?

I am confused by the output I'm getting from ogr2ogr when converting a shapefile to WKT. What I'm expecting to see is something in the form below (from Wikipedia): MULTIPOLYGON (((40 40, 20 45, 45 30,...
Gregory's user avatar
  • 1,651
3 votes
3 answers
860 views

E00 file structure?

I am trying to write a java application that reads and visualizes data from E00 file. I cannot find any sources describing what is the structure of an E00 file and also what information does it ...
johnnaras's user avatar
4 votes
2 answers
149 views

How to store and edit data with a defined topology using open software and formats?

I'm looking for a way to store and edit spatial data that preserves topological information. In my concrete application, I need to represent triangular meshes, which consist of unique nodes and ...
Jake's user avatar
  • 6,852
0 votes
1 answer
719 views

Multispectral images (Band Sequential format) [closed]

How can I create a multispectral image file (in band sequential (BSQ) format), from several 1-band images, using GDAL libraries? I work with C++ language.
B.O.'s user avatar
  • 309
2 votes
0 answers
178 views

'File is too big' error when uploading QGIS Plugin

I have written a simple QGIS plugin which zooms the map canvas to a user specified UK postcode. I would like to share the plugin but the csv file, which contains stripped down OS Code-Point open data ...
Matt's user avatar
  • 2,696
17 votes
1 answer
1k views

The next big thing in standardized spatial data exchange format?

I remember reading something a few months back, in the latter half of 2012, about a coordinated group effort to design a new standard for sharing geographic / spatial data. It has or aims to have the ...
matt wilkie's user avatar
0 votes
1 answer
800 views

How to read/write a/from a file in javascript with prototype.js/jQuery.twFile support OR anyotherway

I want to write my data into a file from OpenLayers, I have gone through Prototype.js and jQuery.twFile.js or anyother way to write into a file.
GOVINDA's user avatar
  • 333
6 votes
0 answers
107 views

Library for parsing scientific PDS files?

Does a library exist for parsing the PDS files that scientific planetary data gets shipped as? For example, here's a link to to the lunar topographic data from the Lunar Reconnaisance spacecraft (it'...
David Given's user avatar
3 votes
2 answers
1k views

ENVI BIL file algorithm logic

I have a 6 band Landsat image, RGB and 3 NIF bands. As far as the Band Interleaved by Line (BIL) method goes, the resulting image should have, and I quote ENVI manual: the first line of the first ...
HDunn's user avatar
  • 8,486
3 votes
0 answers
184 views

How to view Esri GRID format file in wxpython file browse window? [closed]

I'm trying to browse for all kinds of vector and raster data using a filebrowsebutton. The problem is I don't know how to let the browse window see the Esri GRID files (which contains a folder and a ...
mousekenken's user avatar
3 votes
0 answers
480 views

GFS SIG/SFC file format of siganl.gdas/sfcanl.gdas analyzing/decoding problem

I am creating a database from datafiles. I encountered many fails and errors, which I have already fixed (also with the help of this Q&A web). Now I am stucked a bit in decoding of 6 files because ...
Salda's user avatar
  • 223
2 votes
1 answer
198 views

Error while trying to upload a .bsq file to the geoserver

I am trying to upload a .bsq file (ENVIHdr Coverage Format) to the geoserver. While doing this I got an error message. I am using the "GDAL" Extension for the geoserver. The error message is: "Could ...
user7855's user avatar
18 votes
2 answers
15k views

Grid vs TIF vs IMG

Grid, TIF and IMG are three formats of raster files. In ArcGIS Desktop, apparently there's no difference between them. What is the difference between these three formats?
user's user avatar
  • 1,337
5 votes
3 answers
713 views

In what data format should I export a (lat,long,alt) or (x,y,z) grid to be compatible with the largest number of GIS software?

I am new to GIS and developing an application that generates a 3D grid with (latitude, longitude, elevation) or (x, y, z) metric triplets, and I would like to add an exporting feature that ensures ...
John Doisneau's user avatar
11 votes
3 answers
5k views

Advantage(s) of using underscores in ArcGIS file naming conventions?

In an introductory GIS course, it was insisted that all spaces within file and folder names be replaced with underscores. Why is this taught? Is there a clear benefit of doing so?
sin's user avatar
  • 679
5 votes
1 answer
4k views

How to open or import .sdc files in QGIS?

I have some .SDC files i want to look at but i dont have arcview installed. is it possible? i couldnt even find a software that does sdc to shp conversion. any idea? i am using qgis 1.7.4 on both ...
yair suari's user avatar
2 votes
2 answers
1k views

How do I batch export maps for sub regions of a dataset with qgis?

I have a national level dataset consisting of polygons, polylines, points and rasters. I would like to export a map for every sub region (border defined by a polygon shapefile). Is there a simple way ...
James's user avatar
  • 23
4 votes
2 answers
14k views

Converting TAB to MIF / MIF to TAB

How I can export (import) data from TAB format to MIF and vice versa?
Loom's user avatar
  • 415
4 votes
2 answers
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 ...
Magda's user avatar
  • 519
3 votes
1 answer
297 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 ...
Robert Buckley's user avatar
4 votes
2 answers
6k views

Reading GRIB data? [closed]

on this open FTP server (ftp://ftpdatos.aemet.es/modelos_numericos/hirlam005_peninsula/) you can find HIRLAM models from the Spanish meteorological service. The documentation in the LEEME files (in ...
acanimal's user avatar
  • 1,528
5 votes
2 answers
3k views

60GB .gdbtable file in my file geodatabase – what is it, and can I delete or make smaller?

The title says it all really – I have a single file named 'a0000000.gdbtable’ in my default file geodatabase that is 60 GB in size. I have a number of other files with .gdbtable extension that aren't ...
jay's user avatar
  • 337
13 votes
3 answers
5k views

Where can I find country borders data in plain text format? (XML, JSON, CSV, etc)

I'm trying to obtain some data representing the borders of all countries in the world. This data doesn't have to be very precise, it is to draw the countries on a computer screen. I did a bit of ...
Xeon06's user avatar
  • 233
8 votes
2 answers
179 views

File naming for Enterprise GIS database?

I'm designing the guidelines for an Enterprise GIS database. Part of this database will include customized geoprocessing tools using a variety of software. I'm interested in knowing whether anyone ...
Czed's user avatar
  • 702
1 vote
1 answer
2k views

KML to Dat Converter?

Are there any free KML to DAT(destinator compatible) converter available ? I tried to use global mapper but was in vain. Also used ITN converter but the line was converted to points.
kinkajou's user avatar
  • 4,346
15 votes
5 answers
2k views

Most pervasive GIS formats? [closed]

Where can one find out what the most pervasive GIS formats are? For example, from the GIS file formats Wikipedia page, there 4 broad categories, each with many popular formats. Raster formats (13 ...
Dan McGrath's user avatar
1 vote
3 answers
125 views

Looking for a website to produce a file using UTM or LL or LL to UTM or general

Is there a website that allows me to upload my GPS file from UTM to lat and long to produce a new output file? I am looking for one to run a batch a list of UTM or LL to convert them in either way. ...
PROBERT's user avatar
  • 4,123
29 votes
7 answers
9k views

Speed of various raster data formats

I'm having trouble locating any discussion or comparative benchmarking of different raster file formats (e.g., for use in data analysis in R). Does anybody have any insight into why particular formats ...
George's user avatar
  • 291
3 votes
2 answers
405 views

File format (preferably open) for defining web service endpoints for ArcGIS Desktop?

Aside from .LYR files, is there a file format (preferably open) for defining web service endpoints for ArcGIS Desktop? For example, if I publish a WMS feed, can I provide a downloadable resource for ...
Hamish's user avatar
  • 387
5 votes
2 answers
1k views

What generation of the MrSID format is supported by ArcGIS 9.3?

This is probably old news to some, but I just learned that MrSID (.sid) files have different 'generations' of file formats - so there are MrSID Generation 2, Generation 3, and Generation 4 files. ...
Timothy Michael's user avatar
5 votes
2 answers
17k views

Exporting county level data in *.shp file to text (csv) file in ArcMap?

I have a shape file created as per the answer to my previous question, which includes county level means for each county in the US. How can I now export this data in a .csv file, e.g. with just the ...
Abe's user avatar
  • 1,903
3 votes
3 answers
3k views

Convert .dwg file into .dwf file using Teigha tool

I am using teigha tool to convert my dwg file into dwf file. Can anybody help to explain the procudure for the same. Your prompt reply will be greatly appreciated!
annie's user avatar
  • 31
3 votes
2 answers
2k views

Change output file type in QGIS georeferencer?

I have successfully georeferenced a raster file via the Georeferencer plugin (Georeferencer GDAL Version 3.1.9) in QGIS 1.7.0. However, I noticed that the output georeferenced raster file is in TIFF ...
hpy's user avatar
  • 3,117