Questions tagged [convert]

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

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26 views

Simple way to convert GeoJSON from MultiPolygon into Polygon [duplicate]

I need a GeoJSON file that simply has the coordinates of the polygons for the boundaries of the provinces of Canada. I have a GeoJSON file but it has multipolygons and my software does not support ...
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27 views

Date format conversion brings an unexpected empty space between the date parts

I always used the formula (below) in Python Calculator to convert the date format from Julian to Gregorian format. But,now a weird behaviour is happening and I am trying to figure out what is wrong in ...
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19 views

Formula to convert QND95 to EPSG:4326

I have coordinates in QND95 (Qatar National Grid) and I need to convert it to WGS84, specifically EPSG:4326. There are already many tools available for this, but the problem is I want to use the ...
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45 views

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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1answer
46 views

Trying to convert NetCDF file to shapefile in QGIS

I have a NetCDF file containing surface sea temperatures that I want to convert into a ESRI shapefile. I have tried following this link: https://freegistutorial.com/how-to-export-layer-to-shapefile-on-...
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2answers
74 views

Convert EPSG:4326 to EPSG:3857 in OpenLayers and React [closed]

Is there a way to convert coordinates from EPSG:4326 to EPSG:3857 in OpenLayers. Or does any one have a method that does this in Javascript?
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1answer
41 views

How to batch convert state plane coordinates to lat long with multiple SPC Zones?

I'm somewhat of a GIS novice and am trying to see if this is possible to save me some time with further investigating. I have about 300 records in a CSV file with the fields SPC Zone, ECOORD, NCOORD, ...
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1answer
34 views

What is wrong with my convert coordinate code in Python?

I'm going to convert coordinates in a gml file. Inside the file says <gml:Envelope srsName="urn:ogc:def:crs:EPSG::3347" srsDimension="2"> so I think the coordinate system is ...
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1answer
44 views

Need a simple python program to convert EPSG/SRID 102002 (LCC) to WGS84

I'm going to convert some coordinates from Canada LCC (EPSG/SRID 102002) into WGS84 (EPSG/SRID 4326). I found a python package for this purpose which is pyproj. However, seems it doesn't support ...
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Convert Terrain Data to .3arc Format

I have received a request to convert some terrain data to .3arc format. Anybody heard about this format? I did a quick search online but couldn't find anything. Thanks in advance.
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1answer
58 views

Converting GRIB to CSV or to binary data

The challenge is to extract multidimensional data (weather and ocean data in this case) from .grib files, without having to download and install any new software on the computer by running ...
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20 views

How to convert the shapefile of google drive to geometry of GEE in Colab?

I uploaded district's shapefile into google drive, and then read it from google drive using the below method: import geopandas as gpd shapefile = gpd.read_file("shapefile.shp") But I want ...
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2answers
172 views

Getting lat/long for centroids using QGIS

I have a series of polygons (lakes) in Kansas, Oklahoma and a few in Texas. I created centroids of each lake, which I need for distance measurements. These centroids have derived lat/long information ...
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18 views

How to get 1980 census block shapefile from 1992 Tiger/Line files

I am trying to generate a shapefile of 1980 census blocks using the 1992 Tiger/Line files. I am able to open the files directly using QGIS, and I can create shapefiles using the GDAL TIGER driver ...
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1answer
76 views

Latitude and longitude values conversion

I received a backup file and the latitude and longitude in this backup are very big, for example, Latitude: -106994676, Longitude: 488026770. I have not idea how to convert them into regular latitude/...
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27 views

Converting lat long coordinates to shapefile x y values

I'm trying to figure out where a given latitude, longitude coordinate should appear on a particular shape file. The shape file was generated by the US government and I doubt it has any peculiar ...
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2answers
136 views

Convert UTM zone into EPSG code

I have the UTM code 36S and want to convert it to EPSG. Somebody told me that if the UTM code contains 'S', then the first three digits of the EPSG code are 327, and if the UTM code is 'N' then use ...
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50 views

KNMI MSGCPP geoview to WGS84

I would like to transform KNMI MSGCPP geoview netCDF file to WGS84 netCDF file with gdal_translation and gdalwarp. I got error msg. I shared the geoview netCDF file (140 MB): https://z001.s3....
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162 views

Concatenate/combine specific data from multiple HDF5 files into a single CSV file in Python(with code for converting single hdf file to csv file) [closed]

Suppose I have multiple HDF5 files in my E:\NASA directory and want to compile/concatenate the lat (path in HDF5: xxx.HDF5/XS/FLG/latitude), long (path in HDF5: xxx.HDF5/XS/FLG/longitude) and ...
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1answer
49 views

Convert decimal time to use in QGIS

I have a .shp file with includes a column of format Double that is the Arrival time. The time values entered are decimal time. For instance, 1 record has a decimal time of 7.11194, which converts to ...
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62 views

Transverse Mercator Projection formula for WGS84 to UTM zone40N (32640)

I want to convert Lat Long (in WGS84) to UTM zone40N (EPSG::32640) in Excel. So I'm creating a macro for it by following the EPSG Guidance Note 7, part 2. I'm following the JHS Formula for ...
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1answer
33 views

Editing of Y coordinated of polygons in QGIS

I have recently recieved an extremely complex .dfx polygon file of a mine design in Cape Lo29.The problem appears that the mine engineer has used an old local convention of using negative Y co-...
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15 views

OGR to OGR looking for WFS to MSSQL code

I'm trying to get a WFS converting to MSSQL using Ogr2ogr. I have used the following code but get an error of unable to open WFS source. Here is my attempt. Path/UID/Password are all correct. :...
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35 views

How can convert daily MODIS NDVI to monthly of them in Google Earth Engine?

The link of code: https://code.earthengine.google.com/71d9f6ea42ee55b4e18d2adf22d9e678 As a result, I have to have 96 bands in the stack image so that the ID of each band returns the date associated ...
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1answer
83 views

Converting a FeatureCollection to ImageCollection in Goolge Earth Engine?

I created a Feature Collection of Ndvi (mean, min, max) from Image Collection. Now i want to convert FeatureCollection in ImageCollection in order to have a three bands (mean,min,max).How can help me? ...
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1answer
50 views

I only have UTM coordinates (Excel) that I have to convert into shapefile? Add x,y data doesn't work!

I have an Excel file that has UTM easting, northing coordinates. I don't have lat/long. I guess adding x,y data is only for latitude and longitude? Whenever I tried, it's appearing in different ...
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26 views

Transfering DXF from QGIS to Trimble TSC3

I've come up with probably a simple problem when I'm transferring a DXF-file to Trimble TSC3. So I've created a point layer in QGIS which I exported as a DXF file for transferring into the Trimble ...
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1answer
26 views

Trimble Data Transfer won't convert files

I was importing files from Trimble Recon for over 3 years and this never happened with me. When I conect my controller and select the file to import, the file load 100% and when start to convert ...
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16 views

ECW Raster X,Y values to change sign

I have a .ecw file that I want to convert to a GeoTIFF. The CRS is EPSG:2052, but it needs to be ESRI:102566. Essentially both the X and Y value signs need to be multiplied by -1. How do I go ...
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39 views

How to convert XYZ to from-to format with azimuth and dip information? [closed]

I have an Excel spreadsheet with header, survey, and assay drill data. Header data contains hole ID, location coordinates, and length. Survey data contains related downhole survey with distance, ...
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22 views

Create polygons from coordinate pairs in CSV?

I have two csv files. One contains attribute data for military bases. The other contains their polygon geography as lat/long coordinate pairs. How can I link up these two CSVs and turn them into a ...
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1answer
25 views

Do elevation measurements differ between Coordinate Reference Systems? If so, can they be converted?

I have global elevation data captured in relation to the WGS84 ellipsoid, and a local elevation dataset which uses the OSGB 1936 CRS. Would one expect the values to be different, given that the two ...
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1answer
33 views

Converting time in nc files

I have nc file where time unit is expressed as year and month in format "month as %Y%m.%f", type: character. For example, 199604.5 represents the year 1996, month 04. How to convert time in date ...
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54 views

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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1answer
33 views

Converting .csv (.geo column in sf package) to shapefile in R [closed]

I have extracted values from raster layers and now want to convert it to shapefile. The CSV file contains values of different bands and one column .geo in sf package. Any ideas to convert the CSV file ...
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2answers
69 views

Gradians to degrees with zero

I want rotate symbol, but the angle is in gradians (grade, gon) with zero on east. How to convert this angle to degrees with zero on north ? I try (angle*0.9 + 90), but e.g. for angle with 380 gon => ...
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87 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 ...
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1answer
119 views

Convert MODIS mod021km hdf file to geotif using specific band

I need to convert some bands of "mod021km" or "myd021km" files to geotif images (bands like: red,green, blue, nir ,...). I used pymodis ==> modis_convert.py script but there is a problem! When i ...
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70 views

Convert SLD to YSLD and CSS with GeoServer REST API

I would like to reuse QGIS styling in CSS or YSLD for GeoServer (v2.17 with YSLD and CSS extensions installed), as IMHO SLD is quite tedious. My idea was to convert QML to SLD, then SLD to YSLD (thus ...
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1answer
114 views

Show the coordinates at the centre of a map in OSGB format?

I am using QGIS v3.12 and projection EPSG:27700 - British National Grid. I am trying to add a label to my map layout which will give the grid reference of the centre of the map as a UK 8 digit grid ...
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1answer
2k views

Convert Longitude/Latitude to GTA V coordinates

This problem is very similar to this post from awhile back, but it was never solved. I am trying to create an interactive GTA V Map with the Leaflet JS API. I want to convert the longitude and ...
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2answers
111 views

Convert negative values to 0 values in attribute table

I nedd to convert negatives values to 0 values in a column of the attribute table. I'm trying to use the field calculator with CASE function or coalesce, but I think I'm not writing the correct ...
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27 views

Rename layers created by ogr2ogr /w “-explodecollections”

I created a .gpkg using ogr2ogr. As the original file included some geometry collections, I used the "explodecollections" switch of ogr. The resulting GeoPackage now has two layers with the same name, ...
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14 views

Defining size of an inserted raster in ArcMap?

I have just inserted a raster PNG file into ArcMap. I am trying to do buffers on certain features present in the raster after converting it into a polygon shapefile. Is there anyway that I can dictate ...
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31 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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0answers
70 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
40 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
191 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
27 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
32 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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