Questions tagged [convert]

"Convert" usually tags questions where a change of physical file format or of coordinate representation is needed.

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24 views

Polygon from CSV with this format

I have a CSV that uses the format below to describe polygons. I want to load it into a layer in QGIS. Does anyone recognize this as an established way to store polygon data or have suggestions on how ...
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18 views

OpenLayers Degrees to radians -180 -> +180

I need to use OpenLayers to rotate polygons directly with the mouse. For this I use ol-ext which works perfectly. My problem: I store the angles in degrees in the database and I need the conversion ...
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1answer
27 views

Converting from Canada Atlas Lambert (ESRI:102002) to Lat/Long

I have a shape file with projected coordinates specified in Canada Atlas Lambert (NAD83) (ESRI:102002) and have been trying to convert the coordinates to lat/long (ideally in WGS84). However, whenever ...
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1answer
30 views

GeoJSON single feature Polygons changed to MultiPolygon by QGIS and how to convert

I have been rastering maps in QGIS 3.10.2 to provide GeoJSON files and layers in QGIS even though these are created in QGIS as a new shape with the 'Polygon' choice selected and then exported to ...
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1answer
24 views

Options to improve conversion raster to polygon?

Is there a way to convert a raster.tif into a single polygon? # Loading raster.tif DEM <- raster ("C: /Users//raster.tif") # We generate boundary of the raster poly_DEM <- DEM> -Inf polygon &...
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1answer
29 views

Point to Polygon with Fixed Spatial Attributes [closed]

I have a point dataset with 3 useful columns. Those are width, height and direction (degrees from 1 to 360). I would like to create rectangles using the width and height, and with the specific ...
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0answers
22 views

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 ...
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1answer
32 views

Convert XML files in to shapefiles using ArcGIS or FME? [closed]

I have attached a short text from XML file. Can this file be transferred to the spatial domain? How to convert XML files in to shapefiles using ArcGIS or FME?
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12 views

Is it possible in ArcGIS to get cut -fill amount of a polygon feature class with Z-value without converting it to raster?

I have a polygon feature class with Z-value, representing a road alignment. I want to get its cut-fill amount using DEM. Is it possible in ArcGIS to get them directly (without converting feature class ...
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1answer
34 views

Mass conversion of .JP2 images to .TIF format in R

I need to convert a list of .jp2 files to .tif. I cannot do it manually since it is a large number of files. So I can't use: gdal_translate(path_vhr_imag_1, "splt1.tif") gdal_translate(...
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1answer
38 views

Determining XY location [closed]

I am new to a system and the information it gives me for job sites is XY(238391648,71539666):294616358697. I have been trying to use convertors to change this to a longitude and latitude definition ...
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2answers
51 views

What is the proper way to calculate distance in km from degrees

For a genetic analysis of Australian humpback dolphins I am currently trying to assess whether or not genetic differentiation correlates with geographic distance in water. For this I have done the ...
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20 views

Keeping the field style unchanged when converting a point layer generated from CSV file to shapefile

Keeping the field style unchanged when converting a point layer generated from CSV file to shapefile I am trying to export (convert) selected points to a shapefile with the point as geometry type. The ...
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1answer
82 views

Converting between coordinate system types [closed]

I have made it work by using dots instead of commas, and later change the CRS for the coordinates. I am having problems converting the coordinate type: ETRS89 to WGS84. I am unable to load my ...
2
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1answer
48 views

Transforming lat/lon coordinates into an undescribed DATUM from NOAA .grib2 files

I seem to be having issues with converting coordinates. I'm currently working in Python v3.7 osgeo (ogr, osr, gdal) I want to find specific values (like temperature, wind, humidity) based on input ...
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0answers
43 views

How to covert a GeoTIFF DEM to a standard raster format without losing quality or resolution

I'm working on a project, a spin-off of my graduate dissertation, to digitize LiDAR data of a portion of Tampa Bay (20x20 km^2 at 1:1 scale) into a Minecraft map. Ideally I want not just accurate ...
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1answer
61 views

Error while converting Dataframe to Geodataframe

I am trying to convert a table to a shapefile. To do that, I am storing that table in a dataframe and then I am trying to convert that dataframe to geodataframe using GeoPandas. But I am getting an ...
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52 views

In QGIS, how to convert northing and easting from a CSV file into longitude and latitude so it fits with the rest of my data?

I'm adding a CSV file into my map where all the other data comes from shapefiles. I tried messing with the coordinate system, but I can't get the data to show up as datapoints on my map.
2
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1answer
76 views

Convert relative coordinates into absolute ones having only one absolute coordinate in QGIS

I have a layer of points with relative altimetric heights from a survey carried out with a Differential GPS. I know the absolute coordinates of only one point (EPSG:4326 WGS 84 ), the other points ...
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1answer
25 views

GDAL Convert Format with PROJ string

I would like to perform the following transformation in the GDAL Convert Format tool in QGIS: projinfo -s ETRF2000 -t ITRF2008 -o PROJ Candidate operations found: 1 --------------------------...
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1answer
47 views

Converting from DGN v7 to shapefile by GRASS plugin

I read two comments in several topics about conversion from DGN files to Esri shapefile Both of these comments are interesting for me, but I seek to have them explained in more detail. I have ...
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0answers
34 views

JP2 fail to be georeferenced in QGIS

I am a beginner user of QGIS with no background at coding and try to map an area on Mars. I use HiRISE images which are JP2 files, downloaded from UoA on HRSC images.(https://hirise-pds.lpl.arizona....
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1answer
94 views

Transformation problem WGS84 (EPSG:4328) and ETRS89 (EPSG:4258) in QGIS

I want to transform vector points from EPSG:4326 to EPSG:4258 and vice versa for survey application. Currently the difference between the two is about 70 cm in xy direction. Using QGIS to transform ...
3
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2answers
75 views

Convert image from one EPSG defined CRS to another

I've got a lot of image files (.png or .jpg) that I want to convert from one EPSG defined CRS system to another, e.g. from EPSG:31255 to EPSG:25833, on a server within a Java app. For each image I ...
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1answer
40 views

Mapping points in PRS92

I am assisting on a project in the Philippines to map some areas. I've been given a sheet the has points, but its unlike anything I've seen before and have no idea how to put it in a format that would ...
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1answer
83 views

System.ApplicationException: 'EPSG PCS/GCS code 4326 not found in EPSG support files. Is this a valid EPSG coordinate system?'

I have setup a consol app in C# that uses the GDAL.CORE NuGet, it seems to work fine when converting most of the .shp files I have, however with one .shp file I am getting the error below: System....
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2answers
29 views

NodeJs library to convert ESRI point(x, y, wkid) to lat/lng

I use ArcGIS and get an array of ESRI points which I need to convert to lat/lng. I don't want to use the ArcGIS API, because it requires too many calls. Is there any library that can do the work for ...
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1answer
56 views

Keep raster data in original projection and just display it using a new transformation (at the poles) in R vs ArcMap

Desired output: Raster with original characteristics but in transformed projection using R (I.e. See second paragraph here.). NB, I need to do this for 100s of different rasters. You can achieve this ...
2
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1answer
50 views

If converting .xyz to .las using e.g. laspy, then how to specify offset and scale?

I have data from Lidar in .xyz format. I read that it could be beneficial to convert it to .las. So that one can use e.g. laspy -library. For example (code copied from an example): import laspy ...
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1answer
28 views

Using gdal_translate to round pixel values in raster - I'm getting an error

I tried to follow along at question: Rounding raster pixel values to one decimal place in QGIS but my python script throws a syntax error at GTiff. I do have one that works for ArcGIS but my end ...
2
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1answer
39 views

Custom on-the-fly conversion into shapefiles

I have a custom binary format, for which I run an external program to output a set of .shp files, which then can be dragged and dropped into QGIS. What would be the best way of pushing this into ...
2
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1answer
82 views

Exporting a polygon shapefile to GeoJSON with the longitude and latitude switched to latitude and longitude

I want to integrate the GeoJSON of a shapefile into React.js to display it as an interactive map with OpenStreetMap used in the background as a tiled image. I have used QGIS to export the shapefile ...
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38 views

Converting “ALOS PALSAR” DEM to EGM96 vertical system using ArcGIS Desktop

I have downloaded "ALOS PALSAR" DEM from NASA's EOSDIS. Can you help me to convert the high-res DEM to EGM96 (like SRTM data)? I have used ArcGIS Desktop 10.7 edition but it does not work correctly. ...
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2answers
113 views

Error trying to upload data using Mapbox API

I'm using the Mapbox API and I'm trying to upload my GeoJSON but I'm getting the following error: bounds west value must be between -360 and 360 My GeoJSON looks like this: {"type":"...
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1answer
65 views

QGIS: No easy way to change .csv columns to integers?

I am trying to make a heat map of every town in my state. After joining my data (a .csv) to the shapefile, the column I need to map is not visible on the graduated color option under Symbology. I ...
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29 views

How to convert ITRF to ITRF

ITRF 96 1998.0 epoch X Y Z Vx(m/y) Vy(m/y) Vz(m/y) 4059623.25 2764405.93 4056720.43 -0.0079 -0.0007 0.0132 Transformation parameters from ITRF1996 to ...
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1answer
106 views

X/Y Coordinates to Longitude/Latitude, package for .net core app [closed]

I have a task to convert some incoming geo data to Longitude/Latitude. The data elements in the json are identified as xCoordinate and yCoordinate. However, the data in my sample does not look like ...
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0answers
126 views

Python/PyQGIS - Count from Image corner using pixel x y to create x y coordinates

I have an output from a model which provides me with .txt file containing pixel X Y values. What I need to do is convert them to a set of coordinates (Irish grid, 29902). The images feed into the ...
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41 views

Can't display XY data in MXD on ArcGIS Desktop- onEnable error

When using Display XY data function on imported excel into MXD I get this error: and if I click on "ok" then I get this message: and the MXD get stuck and I must shut down the ArcGIS program. I know ...
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1answer
209 views

Creating vector (with lines/polygons) from raster based on paper map in QGIS

For a task I have several maps created with GIS that look like the following: I am mainly interested in the colored zones that aren't roads (red) or rivers (blue) and would like to turn these into ...
3
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1answer
125 views

QGIS convert pixel location

Is it possible to convert a list of pixel locations (txt file) into lat long? What I have is: (left_x: 137 top_y: 146) (left_x: 175 top_y: 236) (left_x: 182 top_y: 153) (left_x: 185 ...
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1answer
54 views

Adding tags in Overpass QL

I am trying to add a custom tag to everything in my Overpass query. As far as I understand this can be achieved with convert. But so far, this kind of statement: convert way ::id=id(), :...
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1answer
193 views

Python script for converting Esri shapefile into GeoJSON using Python and GDAL/OGR?

I know Esri shapefile can be converted into GeoJSON using Python and GDAL/OGR. Following command works on the terminal. ogr2ogr -f GeoJSON -t_srs crs:84 outfile.geojson inputfile.shp I want to do ...
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1answer
45 views

Converting Road shapefile with line geometries to another shapefile with polygon geometries by adding buffer to line on both sides using QGIS

I have Roads shapefile which are denoted by lines. I want to create another shapefile of roads as polygons, by adding 10-meter buffer on line. How do I do this using QGIS?
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0answers
17 views

Create Geotiff from JPEG or PNG [duplicate]

I'm working on creating maps using Cesium. Now my client needs to export the viewport map to an image. I'm already exporting to PNG/JPEG but now I need to create a GeoTiff. Is there any way to ...
2
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1answer
83 views

Transforming CAD File To shapefile (with Projection) Using FME Batch File

I want to convert files from within my application. I've tried a lot, but I can't find a solution. I have a DXF file with which I know the projection system (EPSG:4326). And I want to transform it to ...
2
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0answers
32 views

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 ...
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1answer
38 views

Finding unconnected polylines and connecting them using QGIS?

I have a pipeline network, during manual digitization have a lot pipes unconnect. Is there any way to find pipes unconnect and edit it in QGIS?
3
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2answers
914 views

Converting large data with lat and long into X and Y?

I have 9888562 records in dataframe and I would like to convert my lat, long to UTM x,y. according to my code, I have used pyproj package but because my data are too much it takes a long time and ...
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1answer
95 views

Java - Conversion from NAD27 to WGS84

I'm in the process of adding automatic CRS conversion to a Spark application and running into some problems with the implementation. Each row in a dataframe that is being converted will contain ...

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