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Questions tagged [file-formats]

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

6
votes
1answer
119 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
46 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
57 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
41 views

Dataset description AREA_OR_POINT

What are the differences between these two options in satellite image metadata?
2
votes
1answer
88 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
31 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
399 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 ...
8
votes
3answers
3k 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 ...
0
votes
0answers
23 views

Georeferenced Depth Profiles in 3D

I am a Geophysicist. We often create 2D deptth profiles like so https://www.google.com/search?q=ERT+profile&safe=off&client=firefox-b-ab&source=lnms&tbm=isch&sa=X&ved=...
2
votes
1answer
132 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 ...
2
votes
1answer
216 views

How to edit 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
81 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
175 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
264 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
82 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
60 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
278 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
709 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
313 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
58 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
45 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
73 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 ...
4
votes
3answers
2k 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
94 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
582 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
97 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
129 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
69 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
284 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?
4
votes
1answer
359 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
35 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
87 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
340 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
53 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
4k 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
58 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
71 views

Loading files in Whitebox GeoSpatial [closed]

I just discovered Whitebox geospatial but cannot figure out how to load or open a shapefile.
2
votes
1answer
4k views

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 ...
0
votes
1answer
84 views

What has prevented a “better” format than shapefiles from being widely adopted? [closed]

Reading through this answer got me thinking: Why hasn't a better format than the shapefile been widely adopted? Shapefiles have (as I'm sure most of us have noticed) many annoying quirks, ...
1
vote
0answers
117 views

What is a good data structure and file format for describing road network geometry AND topology?

I am trying to emulate the road network from OSM or Google (or Waze, etc.) locally, so that I can run some algorithms on it. For that, I want to represent these roads as graphs, where each edge would ...
2
votes
2answers
226 views

Converting ArcGIS layers into .kml for Google Earth?

I'm trying to convert an ArcGIS layer into a .kml format so I can use it in Google Earth. I've found several tutorials for this, but none of them have been helpful so far. They seem to be for an older ...
1
vote
1answer
227 views

How to digitize 3D geospatial data using FOSS applications

I need to digitize soil horizon data from photos to be later used in a 3-dimensional GIS workflow. For each photo I have DGPS coordinates of the top left and right corner and the depth of the profile....
2
votes
1answer
441 views

.DWG and .DGN will not drop in to ArcMap 10.2.2

I am attempting to bring in Microstation data (.DGN) into a working ArcMap file. Every time I attempt to drop the data in the map I get the following error message... (Error could not open the ...
1
vote
2answers
472 views

How to extract coherence and covariance matrices of TerraSAR-X data?

I have obtained quad-polarized level 1b TerraSAR-X data from DLR. When I tried to read the data using PolSARpro, I understood that it is only capable of reading SSC format But my data is in MGD (...
5
votes
1answer
943 views

Can I use .crd and .dwg files as QGIS data sources?

I want to use my autocad files(.dwg) and my field files (.crd), and want to know if they are compatible with qgis.
3
votes
1answer
181 views

.MXD file shows as *.DOC file after upgrading machine with ArcGIS 10.3.1 for Desktop to Windows 10? [closed]

I created an .mxd file on a computer with an earlier version of Windows (I was at a college campus; not sure what version). Now, on a computer with Windows 10, the file appears as a Word .DOC and ...
1
vote
1answer
488 views

Opening CTF and DAT files in ArcGIS for Desktop?

How does one open CTF and DAT files as listed here using ArcGIS 10.3? I looked for instructions on their WELCOME to the Geoscientific Database Guide website but there isn't much guidance.