Questions tagged [file-formats]
A standard way that information is encoded for storage in a computer file
178
questions
0
votes
0answers
13 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
23 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
59 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
61 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
29 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
46 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
39 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
90 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
52 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
64 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
48 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
200 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
53 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
111 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
65 views
Dataset description AREA_OR_POINT
What are the differences between these two options in satellite image metadata?
2
votes
1answer
737 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
35 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 ...
4
votes
2answers
600 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 ...
9
votes
3answers
6k 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
300 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
457 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
125 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
310 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
685 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
109 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
68 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
435 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
383 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
77 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
49 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
87 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
104 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
741 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
101 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
145 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
94 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
415 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
888 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 ...
1
vote
1answer
45 views
What is GVW file format?
I am wondering what is the format of theses files: gvw
http://tracking2016.vendeeglobe.org/gv5ip0/resources/weather/20161110-030000.gvw
It is meant to store somehow the weather data but I can't ...
1
vote
1answer
96 views
QGIS version of Arc's “ungenerate” command?
I'm attempting to export the coordinates of the vertices of a vector layer in QGIS 2.8.9-Wien. I need them to be in a specific format for a simulation program to load them. The documentation for ...
1
vote
1answer
406 views
Syntax to load wkt or (x,y) formatted geometry from .csv files on PyQGIS
I'm trying to load some points through a vectorlayer on my QMainWindow, part of my pyqgis application. The code is:
uri = 'file:///C:/Users/.../data/Targets_com.csv?delimiter=,&crs=epsg:4326&...
2
votes
2answers
66 views
Problems converting GTiff to PDS with gdal
I'm trying to convert a GTiff raster to a PDS raster (NASA Planetary Data System) using gdal_translate with this command:
gdal_translate -of PDS -ot Float32 input.tif output.IMG
But I get this ...
3
votes
3answers
3k views
Is it possible to export to .eps with QGIS?
According to web posts from a few years ago, exporting to .eps was easy with QGIS. Just choose : Export as image --> select .eps type. However, I do not find that functionality in the current ...
22
votes
3answers
5k views
How are GeoTIFF pyramids/overviews standardised?
While pyramids/overviews are not part of the GeoTIFF standard, many tools support creating them. For example vips/nip2, Orfeo Toolbox (otb) and ossim which all promise some support for creating those. ...
0
votes
1answer
70 views
Can GIS software be used to open .ulf files?
I was sent a .ulf file and I have been trying to open it using various software.
I read at http://fileinfo.com/extension/ulf that this file can be open using gis software.
Data file formatted in ...
-2
votes
1answer
74 views
Loading files in Whitebox GeoSpatial [closed]
I just discovered Whitebox geospatial but cannot figure out how to load or open a shapefile.
