Questions tagged [file-formats]
A standard way that information is encoded for storage in a computer file
186
questions
-2
votes
0answers
38 views
glTF format : capacity, limitations, performance? [closed]
As part of a state of art about Textured Digital Surface Model (3D geospatial modeling) formats, we have identified some candidates formats whose glTF. We would like general informations focused on :
...
0
votes
0answers
45 views
Convert .ply and .lin files to any file format readable by QGIS?
My issue:
I'm trying to open .ply and .lin files in QGIS but they do not appear to be supported, (although this might also have to do with the fact that there are actual issues with my data - see ...
0
votes
1answer
45 views
Which files format should I favour for import into PostgreSQL+PostGIS? [closed]
Although not a newbie, I am not a GIS expert, so I can use your help.
I have this GIS project, based on a PostgreSQL+PostGIS database.
I import GIS data from many sources. Most of them offer several ...
2
votes
1answer
61 views
Which geo-format does this data represent
I would like to know which file format a website is using. The data is not in lat,long format.
If I do an Inspect element on browser, I get the following data:
stroke:rgba (255,7, 58, 0.125);
fill: ...
1
vote
0answers
37 views
Define Terrain/Elevation textfile data format
I have a program that can visualize terrain/elevation data but will only recognize files in the below format. It has the extension .map but it is not recognized by QGIS or GDAL so I believe it may be ...
5
votes
3answers
278 views
Choosing which of many files to import into QGIS
I have received some remote sensing and shapefiles and other data. And I want to import them to view in QGIS.
Given that each kind of data has multiple file type extensions associated with it, how do ...
0
votes
1answer
28 views
Environmental Analytical Lab Data to Geodatabase
What is the best way to get groundwater analytical data into a GIS geodatabase?
The data is currently in Excel format, but there are options from the lab for other file extensions dbf.
What is ...
1
vote
0answers
68 views
When is HDF or GeoTIFF best?
For my use case, I'm specifically referring to HDF-EOS.
I'm trying to analyse ASTER data so am wondering which format I should utilise. I know GeoTIFF is easier and more compatible, yet HDF has ...
1
vote
1answer
70 views
How to profile rendering performance using QGIS 3.10.x or above?
I am looking to be able to profile the rendering performance of a map and/or its individual component layers using QGIS.
The metrics I am most interested in are:
Access time
Storage IOPS
Storage time
...
1
vote
0answers
26 views
Radio Signal Coverage Standard for GIS
Is there any Standard data format for Radio Signal Coverage for GIS?
Something like GPX or KML (or other XML/JSON/etc-based) for routes, tracks, POI, etc. But for signal strength, base radio stations ...
0
votes
1answer
147 views
QGIS 3.4. project file editing
How can I edit a QGIS project file so that it would open, save and edit data from given folder and save the results for different directory? Kind of like MapInfo's Wor. file.
I read from QGIS ...
1
vote
1answer
110 views
QGS format : backward compatibility between QGIS 3 and QGIS2
Some of my users may want, before finally migrate to QGIS3 LTR, to read with QGIS2 some qgs project files made under QGIS3. I would recommend them not to do that.
But, for the sake of clarity:
How ...
1
vote
1answer
30 views
Identifying file format of web map layer?
I am interested in extracting data from the map layer available here.
The data looks like this (I inserted linebreaks for readability):
Malta_SAR normal #LineStyle000 highlight #LineStyle001 SAR ...
0
votes
0answers
101 views
Converting shapefile to .grd file?
I am new in ArcMap while using R Crisis software.
I need to convert a shapefile into a .grd file.
I read back the previous questions and answer and tried to execute and pop up that it was ...
1
vote
0answers
43 views
Convert KAP files
I've got some .KAP files which are missing spatial data and as such, I cannot convert them into something more useful like a .TIF image. I've been using FME which errors on these files with "Failed to ...
2
votes
1answer
166 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 ...
0
votes
1answer
90 views
Split by Attributes tool exporting to DBF files only? [duplicate]
I am using the "Split by Attributes" tool in ArcGIS 10.6 to go through a shapefile, and split it up into new files by an attribute value. The tool runs perfectly, however I notice it only exports to ...
2
votes
1answer
66 views
GeoJSON files being saved without line breaks
Why are my GeoJSON files being saved without line breaks? Why are they missing the proper formatting? All features in the file are being saved in the same line.
I'm using QGIS 3.6.3.
Here is what I ...
0
votes
1answer
66 views
Open TIN DEM File format
Anyone know a TIN DEM file format commonly used?
In the context of a TIN DEM generator project, I am searching for a file format to save the TIN generated.
6
votes
1answer
360 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
votes
0answers
63 views
Converting .gri to topojson
I am making client-end javascript-powered maps in the context of web development. I am not using gdal, which I gather is a special kind of rendering software.
Data source site: http://www.diva-gis....
5
votes
1answer
166 views
Loading DLG file into QGIS?
I downloaded hypsography (topo lines) in DLG (Digital Line Graph) format. The file came from OGRIP, although it originally came from USGS. According to Wikipedia, DLG files are
topologically ...
0
votes
1answer
93 views
Dataset description AREA_OR_POINT
What are the differences between these two options in satellite image metadata?
2
votes
1answer
1k views
QGIS 2.18 - Adding JGW file
I have a JGW file to add some cropmarks. I have tried adding it as a vector or raster file but it comes up with unsupported data each time. Does anyone recognise this file type and how to load it?
1
vote
1answer
39 views
Saving QGIS Files With a Connects Underline
I have seen in some places, like this, that QGIS file names are made with a connect underline.
For example a file name will be "World_Map" and not "World Map".
Is this underline is somehow important ...
5
votes
2answers
933 views
Why did Esri create .zlas compressed LiDAR files instead of adopting .laz?
I am talking about the Esri Optimized LAS file format for compressed LiDAR files (.zlas).
While the uncompressed format (.las) from ASPRS was adopted by practically the entire Remote Sensing and GIS ...
11
votes
3answers
8k views
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 ...
2
votes
1answer
392 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 ...
3
votes
1answer
566 views
Editing date in *.ssf files?
So my trimble TSC1 Pro XRS (bought in 2000) is getting old I guess and it change byitself the date. I collected data this week, but it indicate from 1998.
I view this info because I can't apply ...
1
vote
1answer
150 views
Space Time Cube in ArcMap, always get invalid file format for output
I am using ArcMap 10.4.1 on Windows 7 to try and create a space time cube to model wildfire spatial/temporal patterns across a portion of Colorado.
I always get the error 000814 Invalid file type in ...
5
votes
3answers
2k views
Is raster lossy and vector not lossy?
I am new to GIS, in school for it actually, but I come from a photography / graphic design background. So that said, I always thought that vector graphics were not lossy (scale up or down, doesn't ...
1
vote
1answer
460 views
How to convert ASTER HDF file to Geotiff
I just downloaded the ASTER LT1 HDF file. How do I convert it to Geotiff using ENVI. Or do you know any conversion tools that are accessible to use for free. Previously, when I downloaded ASTER data ...
0
votes
2answers
877 views
TileMap: How to convert MBTiles to RMaps SQLite?
These two map formats look very similar (based on SQLite and Tiled Maps).
I am looking for method to convert maps from mbtiles to RMaps SQLite and vice versa without quality lost.
-2
votes
2answers
126 views
Kernel density tool does not produce an .asc output file
I have made a kernel density map in ArcGIS 10.3 and 10.5, but the output appears as an .aux file, not an .asc file (which I will need to use for occurrenceThinner). A folder appears also with a ...
1
vote
1answer
73 views
Opening Cities Revealed data from 1990s?
I have been given a lot of aerial imagery from the mid-1990s that is in '.crv' format. The software/company at the time was called 'Cities Revealed'.
Does anybody know how I'd go about opening it?
...
1
vote
0answers
12 views
Standard Format for Underpass Clearance? [closed]
Do highway departments typically provide underpass clearance data as part of data sets provided to google maps, et. al.?
If so, can anybody point me at the definition of the data elements, file ...
1
vote
1answer
567 views
Open .fit image file
I am trying to open an image file with the extension ".fit". Does anybody know which software to use?
I obtained this image using the WASI software (Water Color Simulator) available on the IOCCG ...
1
vote
0answers
2k views
Opening .lpk in QGIS? [duplicate]
I am brand new to QGIS.
I have downloaded the BLM's public land survey system from their website (https://catalog.data.gov/dataset/blm-national-public-land-survey-system-polygons), which has a file ...
-6
votes
1answer
495 views
GIS File format conversions [closed]
I want to code in python or any other language to create a software to convert the following files to each other:
GeoJSON File;
Tiff File;
Shapefile;
KML/KMZ File;
Grid netCDF File;
ESRI Grid ...
1
vote
1answer
82 views
Specifying a file extension for the file output using a script from the processing toolbox in QGIS
I'm looking to specify the file extension of the output file created by running my script from the processing toolbox. Currently, the user must type in the extension in themselves, which I would like ...
1
vote
1answer
52 views
android to qgis exchange data format
I need to create a qgis plugin to import dip and dip direction data from an android compass app into an (existing) bedding data layer.
I need some suggestion about the best exchange file format; my ...
2
votes
1answer
100 views
Auto-style shp layers with pre-defined schema in QGIS?
I have shapefiles with a pre-determined format, but different data. Is there a way in QGIS to set the style automatically based on pre-determined fields, before any files are open?
I'm thinking ...
6
votes
3answers
4k views
How to get WFS GetCapabilities information as JSON
I can get a WMS GetCapabilities response via AJAX call and I can convert response to JSON using ol.format.WMSCapabilities tool.
But I need to make a WFS GetCapabilities query via a AJAX request and ...
1
vote
0answers
122 views
Importing CGM format using QGIS
I would like to know is it possible to read or import a CGM file using QGISand also export other file format back to CGM using QGIS.(https://en.wikipedia.org/wiki/Computer_Graphics_Metafile)
Is there ...
1
vote
1answer
857 views
Conversion of files to Mapsforge *.map format [closed]
I am a complete newbie and not a cartographer. I organize off-road events such as 4X4 trail rides, biking events and running events. Many of these trails/event maps have been created in different ...
3
votes
1answer
103 views
Opening DTI Wind Speed .asc files in QGIS?
I have found some open source data of mean wind speeds for the UK at 10m, 25m and 45m. I've shared the zip folder to my dropbox which you can download at:
https://www.dropbox.com/sh/1sst2hh3x6y7csd/...
3
votes
2answers
150 views
Seeking open vector format for long term GIS data storage in off-line repositories?
Many field sciences require data management plans for their research data that specify how the data will be submitted for archival storage. These data come from various devices and are often in ...
1
vote
1answer
106 views
How to use Windows Form ListBox DragDrop to retrieve path names from MXD Layers
I'm trying to make a tool with a feature can drag in raster layers from an mxd to the ListBox on a Windows Form and retrieve their file paths. So far I've found that the only format the layer can be ...
-1
votes
1answer
510 views
What is the most size-efficient spatial file format for vector polygon data? [closed]
Surprised I couldn't find an answer to this on Google. For transferring a complete dataset (polygons, in vector form) in a single file, what is the most size-efficient file format?
5
votes
1answer
1k views
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 ...
