Questions tagged [convert]
"Convert" usually tags questions where a change of physical file format or of coordinate representation is needed.
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questions with no upvoted or accepted answers
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Converting SVG files to GeoJSON
I am struggling with converting SVG files (with geographic coordinate metadata) into a GeoJSON file. I have been trying the svg2geojson command line util and online conversion tool MyGeodata Cloud.
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4
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1
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Convert .asc type to .csv or .json
I have an asc type file which describes measurements of a gas across an area at 1km square resolution. It looks like this:
NCols 1725
NRows 2175
xllcorner -224131.189661
yllcorner 4892726.61578
...
3
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460
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Converting the coordinate system of x, y of shapes in an image to latitudes and longitudes
I have screenshots from Google Maps that show the traffic condition in Tehran (6000*4000 pixels):
I have extracted the red sections using Opencv and then drawn these sections as lines in a new ...
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490
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Conversion to_string provides NULL in QGIS
I've been trying to convert a decimal row into a string row using a few methods. Below is my CSV file:
also, note that csv header has been updated too,
State;AverageRainfall;ProbabilityBelow;...
3
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482
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Creating tiled pyramidal TIFF from PNG tiles that are organized in slippy map?
I have map tiles (Z/X/Y) of a certain location which I serve via a simple web server and add on QGIS for offline usage via the XYZ Tile Layer from the Browse menu.
These are to be used in a survey of ...
3
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1
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QGIS 3.0.3 python error "/bin/sh: gdal_polygonize.py: command not found"
I have recently downloaded QGIS on my Mac to preform an analysis for my dissertation.
I am trying to convert my raster data to polygon data using the gdal_polygonize.py tool provided by QGIS.
...
3
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180
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Lat/Long Format and Conversion
I have downloaded data in a .mif file format and I was having issues overlaying it in QGIS. I checked the attribute table and the latitude and longitude were showing as below, this is one line from ...
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305
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Tool for merging OSM and Google route data
I'm using google API in order to solve a routing problem; by giving it points of source and destination and demanding the route. Now I want to project the route on an OSM map.
Is there any tools to ...
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Converting Mars Global DTM to Spherical Mesh
I am working on a video game that is attempting to provide a semi-realistic model of Mars. My starting point has been to find and use reliable geographic information to create the "model" of Mars.
I ...
3
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880
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WMTS, compute of coordinates
for someone skilled, I'm sure this will be piece of cake. I'm starting implementing WMTS into own application and even that I already use WMS for years, I have some troubles with understanding WMTS.
...
3
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333
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Using Field Calculator to Convert Data Type In Field
I am trying to convert a field that is listed as "String" because it was imported into QGIS as a CSV (rural poverty population percentages by county in NC). I need to convert the percentages field ...
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Is there a free way to convert DGN v8i to... any other format?
(Update: We have postgis and ogr2ogr (etc.) but not any ESRI or Microstation software.)
I just got DGN v8i files and I can't find any free way to convert them to... anything else.
FME and AutoDWG ...
3
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498
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How to convert shapefile to mapinfo file preserving special characters?
I have to convert a bunch of shapefiles to mapinfo files on a machine without a MapInfo license, so I am using ogr2ogr to perform this task.
The problem is that when opening the mapinfo files in ...
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How to convert from Navit to PostGIS or shapefile?
I have a Navit BIN file which I want to use in PostGIS or QGIS, so I need to import it to PostGIS or convert it to a shapefile. I have found a lot of information on how to convert data TO the Navit ...
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Determine the Degree of Data Lossiness when Converting Data
I'm working through some of the ESRI tutorials on Data Interoperability and it briefly mentions the issue of data conversion being a lossy process.
Some questions that come to mind are:
What is ...
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Conversion of a DEM model from Baltic Height system 1977 to EGM96
I have a raster DEM model (geotiff) with horizontal coordinate system EPSG:4326 and vertical heights regarding the Baltic Heigts system 1977 https://epsg.io/5705
I'm trying to convert it into EGM96 ...
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Handling Nulls with QgsVectorLayer.getFeatures() and GeoDataFrame.from_features()
I am trying to convert selected features in a QgsVectorLayer to a GeoDataFrame. The input layer contains values including nulls across multiple floating, integer or string columns.
For Example:
When ...
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321
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How to convert a .CSV file to a RINEX file for post-processing?
I will preface this by saying i'm not 100% sure this is the right stack exchange to ask this on and i'm completely out of my depths here with the work i'm trying to do but alas i will proceed.
Field ...
2
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1k
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Convert labels to annotations in QGIS
When using ArcMap it's possible to convert labels to annotations. How does this work in QGIS without a plugin or Python?
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Converting Velocity ECEF to NED or LLA/Geodetic
I'm able to get a correct position from ECEF to Geodetic to NED with a relative footpoint and can verify using online conversion tools:
https://www.oc.nps.edu/oc2902w/coord/llhxyz.htm
https://www.ngs....
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How to convert GeoJSON points to H3 hexagons in Python
I am trying to take a geojson file of points and convert it to H3 hexagons in my Python script. In JavaScript, there is a separate package called geojson2h3, but the Python h3 module has a method ...
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1
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AttributeError when converting DataFrame to GeoDataFrame with Polygon
I imported a shapefile in the form of a pandas.DataFrame and ran operations on it. But I can't convert the DataFrame to a GeoDataFrame. I tried with gpd.GeoDataFrame, and with wkt.loads. I think it's ...
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453
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Convert MBTiles to PDF
I have the MBtiles but I want to turn the contours within that file into a PDF image.
is this possible or am I wasting my time?
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2k
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How to open HDF5 file on QGIS
I've acquired an extensive collection of HDF5 files of Net Ecosystem Exchange data with daily temporal resolution. It seems that QGIS cannot open the file type by just dragging and dropping (while ...
2
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175
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Calculating Reflectance from Parrot Sequoia DN
I am dealing with the images of a Parrot Sequoia. I could not pre-process the images in Pix4d because I took single shots in different parts (so there are not overlapping images).. for me it is ...
2
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155
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Copy multiple rasterfiles into geopackage
I have a folder with ~100+ raster images which covers my study area (the data comes in .ecw or .tiff, i have both at hand). How do i get them into one geopackage without having to go the export -> ...
2
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364
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Is it possible to merge two polygons with a single touching point into one?
Is my understanding correct, namely that two polygons touching at a common point cannot be merged because the result would be a self-intersecting polygon?
I know there are dozens of Q&A threads ...
2
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2k
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Create GeoTIFF from PNG raster with PGW world file with GDAL
I've used GDAL tools for several other operations on GeoTIFFs.
There is lots of information on how to splice GeoTIFFs into PGW world files and images, but I haven't found ANY documentation on how to ...
2
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72
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QGIS: Copy all attributes of polyline layer when converting it to point layer
I want to add attributes from a polyline layer to a vector point layer.
The polyline is railway network. It has been divided into segments automatically, where as the attributes apply for each ...
2
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168
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Inverting shapefile in QGIS 2.18?
I asked a question earlier about how to invert my file "hydropolys.shp" from a vector of ocean and seas to a vector of land and got sent to here, but I am experiencing issues where using the "...
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123
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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....
2
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653
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Inaccurate results when converting coordinates to EPSG:53004 with geotools and
I am not very well aquainted with geographic data, but I'm working on a student project, where I have to position points from GPS coordinates around Warsaw on a particular shapefile map. It came with ...
2
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62
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Unknown coordinate system from web API
I'm trying to figure out (and eventually convert to WGS) projection system of coordinates I get from one web API service. As an example - lat, long = 71804125, 180232666 is a point in Cracow, Poland.
...
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79
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Conversion of Text layers to vector 'Line' Feature Class
Is there a way to convert Text or Labels to Vectors within Geomedia or utilize the Publish to KML and convert using Google Earth?
I do not have Adobe Illustrator installed here to 'Create Outlines', ...
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348
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How to convert Esri Compact Cache to other format? (mbtiles, et.c.)
I need to convert Esri Compact Cache-files to a "better" (a more open & common) format. Ideally I would like to convert to mbtiles or just 'tiles on disk'.
What software can perform this ...
2
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1
answer
529
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ProjNet error in converted coordinates
today I discovered this library, but after trying to convert coordinates from one to other system find out that there is some calculation error.
I googled possible solutions for this problem, but ...
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Convert .osm.pbf file to a raster (tif, asc or rst)
I downloaded the .osb.pbf file for my country, and I want to import it into Graphab.
To import it, I need to have a raster file as the documentation file mentions:
The second window is for ...
2
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1
answer
1k
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PyProj - Transform coordinate in "HK80 grid" to "WGS 84 / UTM zone 49N or 49S"
Am trying to use python pyproj to do the above conversion (convert/transform from Hong Kong GRID to Hong Kong UTM), but am getting different values from the expected result.
My expected conversion ...
2
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419
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Convert node data to lat/ long > DBF to CSV conversion
I have a DBF table with nodal data locating cycle injuries in Portland, OR. I'd like to convert the table to a .CSV. Transferring the attribute data isn't a problem, but I'd like to get lat/long ...
2
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426
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Export DXF from QGIS; points' metadata as text element
I have a layer (Esri shapefile) which has points in it. Each point has 'property identifier' as metadata. (Boundaries and boundary markers are in different layers / files.)
In QGIS I changed the ...
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357
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QGIS Lost precision when converting raster to vector
I am after running ordinary kriging, converting raster to vector I lose decimal value and only get whole number. I have added first the raster then the vector image.
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126
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Converting u and v from WGS84 to NZTM2000 - Do I need to do vector conversion?
I have u and v wind component values in latitude and longitude in WGS84. I want to convert this to NZTM2000. I've converted the lat/lon in ArcView - (and will try in R) - but do I need to also do some ...
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Converting UTM to Lat Long inside a Game Engine(Untiy 3d)
This is my first post on Stack Exchange.
I have exhausted my research through the game engine forums, so I am trying this forum since you guys seem to be the experts.
I have an external device that ...
2
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3k
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Convert TIFF to GeoTIFF
I have a TIFF created from a pdf using GIMP2. The co-ordinate pairs for the extents are shown in the TIFF. I need to convert this TIFF to a GeoTiff and ultimately to a shpfile. The CRS is known.
2
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812
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ATS77 MTM 5 to NAD83 CSRS UTM 20N Coordinate Converter?
I've been looking for a simple way to check the accuracy of my transformation using a set of coordinates for a single point but have been unable to find an online tool or piece of desktop software ...
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Converting local XYZ to geographic coordinates
I am working with a computer program called PEP for Windows by Airbus, which is able to calculate exact flight paths of an aircraft, based on many inputs like weight, temperature, wind, etc. The ...
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498
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Software that converts from legal description text?
Is there software that takes legal description text as input for conversion to some computer friendly GIS format? For example:
Those portions of the North Half of the Southeast Quarter and
the ...
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269
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Converting GML to Geodatabase format by using Productivity Suite software
I am using ArcGIS Desktop 10.2 version and would like to import MasterMap Integrated Transport Network from Digimap to ArcGIS, So I was following the steps:
Install Productivity Suites v 3.4.1
...
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431
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Conversion of Polygon vector files to Raster GRID 8 bit unsigned integer
I am trying to convert a polygon shapefile layer into Raster GRID with 8 bits and which is unsigned integer. I managed to convert the shapefile in ArcGIS with the Arc Toolbox Conversion tools, but the ...
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145
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Subtracted 2 DTM layers to find the height of trees but all we have is the pixel values, can I convert this to height?
For a piece of coursework we have an aster layer that captures the tops of trees and a panorama layer that sees ground height (both are raster) so we have subtracted one from the other to get tree ...