Questions tagged [file-formats]
A standard way that information is encoded for storage in a computer file
33
questions
114
votes
23
answers
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Converting between KML and shapefile (SHP) format
My users are sending me point data that were digitized using Google Earth.
How can I convert their KML to a shapefile and vice versa?
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23
votes
2
answers
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Understanding ESRI's .asc file
Reading the ArcGIS help: Supported raster dataset file formats, I read that ASCII Grid file types are addressed with the singular file extension .asc for both 16 bit signed-integer (for discrete data) ...
- 10.1k
3
votes
1
answer
754
views
Configuring lidR catalog to overwrite raster output (with different extension)?
I have a small issue with configuring the lidR package for parametrizing the extracted raster files with grid_metrics() function.
My question is how to set in the catalog options that:
be able to ...
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13
votes
4
answers
18k
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How can I transform a georeferenced JPG to a georeferenced TIF?
I have an georeferenced JPG file and a JGW file containing the coordinates. How can I transform it to a georeferenced TIF file and a TFW file?
I have tried to save the JPG file as an TIF file in ...
- 2,231
11
votes
14
answers
14k
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Which GIS support DXF and/or DWG?
Which GIS support DXF and/or DWG (preferably read&write)?
Update: Are there any open source GIS supporting these or similar CAD files?
Support of CAD files generally seems to be problematic. ...
8
votes
3
answers
11k
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Merging shapefiles with different geometries (point and polygon) to get single layer with multiple geometries?
I want to merge two shape files in which one is of point geometry type and other is polygon type in order to get a single layer containing both points and polygon in a single map.
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votes
1
answer
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What is *.pkinfo file?
What is a *.pkinfo file?
Google Search results talk about Package Info files and how they contain map documents and layers, so I don't see how this is different from a .mpk file.
I also have not ...
user74259
36
votes
5
answers
9k
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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 ...
- 8,302
14
votes
4
answers
17k
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Explaining difference between shx and shp files of shapefile?
I am searching for a more in depth explanation of the differences in shp and shx files to little avail. I mean beyond the 'shp contain geometry - shx contains an index of the geometry'.
The reason I ...
- 383
10
votes
3
answers
15k
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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.
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5
votes
1
answer
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QGIS processing default output vector layer extensions
You can set the default output-extension of a model in processing > options > general. The intermediate transactions in a model are processed in that default file format.
After installing QGIS, the ...
- 5,207
5
votes
1
answer
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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 ...
- 562
4
votes
2
answers
6k
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Converting *.tif file into headerless (flat) binary file?
I am using NDVI files (value range -1 to +1) created from Landsat CDR images to produce a timeseries in TIMESAT software.
My .tif file has following characteristics.
File type TIFF,Data Type ...
- 61
18
votes
2
answers
15k
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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?
- 1,337
18
votes
3
answers
2k
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What is the wire format for Google's new vector map tiles?
Google recently released new vector cartography for their mobile maps. I'm curious if anyone here has any insight into the wire format they use for transmission? I've experimented with a few formats ...
- 1,295
11
votes
2
answers
4k
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GDF -- Can anyone suggest some good reading?
Can anyone give me a nutshell explanation of the Geographic Data Files format, or post a few URLs I might find enlightening?
I get the sense (although I'm not sure) that GDF implies building ...
- 2,370
7
votes
3
answers
351
views
Custom, low-level representation of streets and traffic rules
I'm new to GIS, and I'm still trying to gain an understanding of what can be represented in the various GIS files. Very generally I know(/think) that you can represent points, that lines, polylines, ...
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7
votes
2
answers
12k
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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 ...
- 345
7
votes
1
answer
3k
views
When saving a .qgs file in QGIS, another appears. Is this a backup?
When saving a project file (.qgs), which when executed is automatically loaded with qgis.bat, there's another .qgs file which appears in the same directory of the original project file, although this ...
- 74.6k
6
votes
2
answers
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Can ogr2ogr read .kmz files? How?
Attempting a run-of-the-mill ogr2ogr process with a KMZ file failed:
FAILURE:
Unable to open datasource `Rail.kmz' with the following drivers.
Is there a trick? (Obvious workaround is to unzip the ....
- 5,606
6
votes
1
answer
1k
views
CRS information not recognized when geopackage is loaded
I am starting to transition from .shp to geopackage data format in QGIS. There are many benefits to the format that give it an advantage over shapefile for many of my projects. However, I am having a ...
- 2,274
5
votes
2
answers
1k
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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. ...
- 963
4
votes
2
answers
14k
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Converting TAB to MIF / MIF to TAB
How I can export (import) data from TAB format to MIF and vice versa?
- 415
3
votes
2
answers
453
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Need a vector format that is editable in QGIS and supports >10 character column names
For reasons, I need to create a new column in a vector shapefile with a name longer than 10 characters, and export to mapinfo TAB format. I know .shp's don't support >10 character column names, so I'...
- 33
2
votes
1
answer
481
views
QGIS 3.16 with AutoSaver plugin: Renamed bak-files were not opened correctly or just as a blank project, respectively. (Win 10)
Though my current QGIS-project was not saved in that very moment, yesterday evening my Win 10 decided to run an OS-update and shutted down.
'No problem', I thought because of having installed the ...
- 477
2
votes
1
answer
261
views
Coordinate system doesn't contain values in the range -180 to 180 and -90 to 90
I'm creating an android version of a PC program (I've contacted the company who owns the PC program, so it's legal). The program is in the core a GPS, but is used to navigate pre-defined routes for ...
- 212
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 ...
- 23
2
votes
1
answer
708
views
Writing custom Prepare Scripts for Open Data Cube?
How do I write custom prepare scripts for the Open Data Cube format ?
The docs say the following:
We expect that many new Data Cube instances will require custom prepare scripts to be written. It ...
- 6,329
1
vote
1
answer
5k
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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 ...
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1
vote
2
answers
4k
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Import .cdr file into gis/cad format
I have a Corel draw (.cdr) file that I would like to import into a GIS. It is a vector format which I think has no geographic information associated. I would like to be able to get it into MapInfo ...
user1805
0
votes
2
answers
620
views
Any plans to change GP toolbox format (.tbx file) to text-based format? [closed]
Have you heard if esri has any plans to change GP toolbox format (.tbx file) to text-based format in future?
The issue is that we can't track changes in binary tbx file using source control system. ...
0
votes
1
answer
1k
views
How can I open a georeferenced JPG file in OCAD?
I have a georeferenced .jpg file with the .jgw file containing the coordinates. I want to use it as a background in OCAD. But when I open the file as a background, the jpg file is not georeferenced to ...
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0
votes
1
answer
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Listing file formats to represent georeferenced 3D data? [duplicate]
I am looking for an overview of file formats that can store geo-referenced 3D geometries. There are no further requirements such as texture support, etc.
I have found the following formats so far and ...
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