Questions tagged [xyz]

In a planar coordinate system, three coordinates that locate a point by its distance from an origin (0,0,0) where three orthogonal axes cross. Usually, the x-coordinate is measured along the east–west axis, the y-coordinate is measured along the north–south axis, and the z-coordinate measures height or elevation.

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14 views

How to stop requesting tiles after a certain zoom level in OpenLayers

I am using OpenLayers to create a map. The base of the map is being created using XYZ as the source. I only have till certain zoom level and i was wondering if there is any way to make the browser ...
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1answer
40 views

Clipping a raster from quickmapservices or XYZ tiles

I'm trying to clip a google satellite XYZ tile over a layer mask of my DEM layer to make a 3D map. the problem is that after making the connection and adding it as a layer to my project, im unable to ...
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35 views

How to display my XYZ Tiles at a certain extent

I am using OpenLayers to create a map. I am providing my own source using XYZ. I want to be able to display my tiles at a certain extent and not go out of this extent. How can i do this ? proj4.defs('...
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39 views

How to change tileSize in XYZ from default([256,256]) to something else for openlayers?

I am trying to change the tile size and I have not been able. Below is the code. var projection = get('EPSG:4326'); local_url = 'assets/tile/{z}/{x}/{y}.png'; map = new Map({ target: 'map', ...
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1answer
55 views

Import multiple xyz files and rasterize them

How can I load multiple XYZ files in QGIS? I want to load about 100 files to create from each one a raster so we can overlay our network on them. Manually it's too much work. I tried to create a ...
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1answer
454 views

Formula to convert xyz Cartesian to latitude / longitude using WGS84 [closed]

I need formula to convert xyz Cartesian coordinates to latitude,longitude,altitude using WGS84 to use in VBA application x,y,z coordinates will be normal points (lets say, user pick point in AutoCAD, ...
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2answers
271 views

Rasterizing ungridded XYZ (LiDAR) files? [closed]

I have a large set of ungridded xyz text files (LiDAR point cloud) and want to export them to any raster format (tiff, asc, gridded xyz...) for further GIS processing. The source: https://www....
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How to import xyz data in QGIS 3.0 Processing Modeler for creating points and raster?

I want use dsm data in QGIS 3.0 Processing Modeler. This data are in xyz-format. I want to convert xyz data into points to create a raster. Later I want also apply this modle for the a folder with ...
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1answer
42 views

How do I bring the Z value to attribute table?

I have a shapefile exported from a hydraulics software that I use. The file is exported as polylines. I convert it to a point layer using the "Extract Nodes" function. The remaining piece of ...
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1answer
64 views

Convert EPSG:2263 LiDAR data to EPSG:4326 to use with FSX

I have LiDAR (las) input files in EPSG:2263 (NAD83, NY state plane, feet_US) aquired from https://gis.ny.gov/elevation/ and want to convert those file to EPSG:4326 (WGS84) for use in MS Flight ...
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Converting xyz data in txt format to .xyz format?

I have read many forums about converting xyz data from txt format to .xyz format. I extracted xyz data from shapefile using exporting data from attribute table in ArcGIS Desktop, then save it as .txt ...
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1answer
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QGIS - 3D data set with stacked points at different elevations, is it possible to create data points at each elevation

I have a 3D dataset consisting of xyz and property. The data points are along vertical axis (boreholes), and at different XY locations (at other borehole location). The data points are not all at the ...
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22 views

Adding points to a gridded XYZ

I have a gridded xyz file that I got from gdal_translate on a tiff file, it's 65,536 points from a 256 x 256 .tif file. I have interpolated another x column of points to make it a 257 x 256 .tif ...
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1answer
64 views

Plotting XYZ in ArcMap?

I have UTM coordinates data XY and Z which shows the presence of mountain. For Z, I have just binary data. 1 = presence of mountains, and 0 = absence of mountains (presence of sediments in other ...
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1answer
177 views

Print XYZ Layer Using Geoserver, Mapfish, GeoExt

How can I get base layers added to an OpenLayers map using the OpenLayers.Layer.XYZ method to print in MapFish/GeoServer? The Geoserver/Mapfish print service is not printing any of my XYZ base layers ...
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QGis 3.4.4 xyz-dependend height length calculation

We use $length to display the length of our lines. The outputs are only xy calculated We need to calculate with the height reference system DHHN 92 to get the true xyz lengths. How do I set up the ...
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1answer
237 views

Mismatch between OpenLayers 5 and XYZ-layer on some zoom-levels

I have an image pyramid that I created with gdal2tiles. Then I displayed this layer on top of another map in OpenLayers 5 with the XYZ source. On the map zoom levels 0-8 the XYZ layer is not aligning ...
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0answers
191 views

Converting XYZ tile coordinate to WMTS

I would like to add a WMTS tile endpoint to Mapbox-GL-JS, which only supports "XYZ" or TMS tiling schemes. According to what I understand of the WMTS specification the two seem to have the same zoom ...
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101 views

Extract nodes X Y Z from lines

In QGis 2.18.3 The Vector -> Geometry Tools -> Extract Nodes tool will generate a point layer shapefile with points at each vertex of each line. But each point in layer does not have the z ...
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49 views

Trying to interpolate depth measurements of a pond

We have taken depth measurements across a pond, and have a CSV file with each location's GPS coordinates and depth in meters. We are trying to create a map of this pond showing where the channel is ...
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0answers
43 views

Shapefiles and attributes from ArcGIS Pro missing in ArcMap?

I have data that is a series of digitised polylines that due to issues with maintaining the Z component have been exported (from another software package) as XYZ points in .csv format. Using ArcGIS ...
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2answers
397 views

Convert XYZ coordinates in .txt files to .tif files?

I have many .txt files containing UTM XYZ coordinates of my study area. The content of each .txt file looks like this: 493932.0669,5426301.1910,0.468 497932.0669,5426301.1910,0.421 501932.0669,...
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1answer
548 views

XYZ bathymetry to Raster?

I have some XYZ bathymetry data in an irregular, non north-up pattern -- i.e. not gridded. It is saved as a CSV file. 443564.526,6636541.778,-105.47 443564.526,6636538.778,-105.44 443567.526,6636544....
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1answer
275 views

Reprojecting XYZ coordinates in Python whilst keeping Z coordinate constant

When doing a reprojection from a projected coordinate system (e.g. EPSG:28992) to a geographic coordinate system (e.g. EPSG:4326), the Z coordinate gets an offset of 45 meters. The Z coordinates of ...
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3answers
565 views

Directly generate XYZ tiles from GeoJSON?

I would like to directly generate XYZ (=raster) tiles from a ~20 GB large GeoJSON file. This is way too much for QGIS Tiler. As another trick I've generated vector MBTiles from the GeoJSON, but sadly ...
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2answers
414 views

How to convert UTM projected map to slippy map tilenames

I work with a map of Paris in ETRS89 / UTM zone 31N projection (EPSG:25831) and need to write slippy map tiles in filenames like /z/x/y.png. I made a custom python script to read the QGIS project ...
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QGIS - Average a DEM into a single, flat plane

I have a XYZ point cloud that I am interpolating into a DEM. The data represents a surface that is relatively flat. I am hoping to be able to create a DEM of a single flat plane that best represents ...
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1answer
70 views

QGIS switch of coordinate system?

I want to know if it is possible to switch of the coordinate system in QGIS, because I want to use my own values like x,y,z (the results is a 3D-model and the x,y,z axis is represented in cm, so I do ...
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1answer
154 views

Importing EarthVision ASCII to ArcGIS Desktop?

How do I import a surface map from Petrel in EarthVision ASCII Format to ArcGIS? I have a file from surface map in Petrel that I want to export to ArcGIS Desktop. I used the tools 3D ASCII to ...
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2answers
295 views

Load XYZ point data with UTM coordinates with included zone attribute in x-values?

Given a XYZ file with following structure for elevation values (3rd column), x-coordinate (1st column) and y-coordinate (2nd column) for UTM zone 32 N (EPSG:25832): 32496000.00 5764000.00 121.26 ...
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1answer
1k views

Converting LiDAR .las to .xyz with LAStools outputs incorrect projected coordinates?

I have an application that can import terrain data in an XYZ text format where X = latitude, Y = longitude and Z = elevation. I am trying to convert a LiDAR .las file to this format using las2las. ...
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0answers
80 views

Getting the area of a polygon from Google Earth or .xyz digital elevation model INCLUDING area due to topography

I'm doing some analysis for a study on geomorphology. For this I'm comparing the 'bumpiness' of lava fields to the 'bumpiness' of the surroundings. What I'm trying to do for this is measure the ratio ...
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0answers
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OpenLayers2, trouble with XYZ layer bounds

I have folder with image at server: ex: /folder/zoomlevel(z)/id/x-y.png I added it by the OpenLayer.Layer.XYZ with my getURL() function: getUrl: function(bounds) { var xyz = this.getXYZ(bounds); ...
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1answer
7k views

Converting text files to .xyz files [closed]

I need to import data on WAsP software but I am finding problems to convert the data I got from an official website to a file readable by WAsP. in summary I have a file like this: -39.0250 -6....
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1answer
222 views

Importing point cloud data to Terrascan is incorrectly gridding it?

I am using Terrascan to strip vegetation of some ASCII files to create a bare earth model and also to convert the ASCII txt file into a *las (1.2) file. However, I have noticed that Terrascan (at ...
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1answer
385 views

XYZ FILES can't process Using Potree

I try to process XYZ Files In Potree but it not works But when i try .las file it work prefectly fine My commands line arguments ./PotreeConverter.exe C:/wamp64/www/PotreeConverter2/...
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0answers
235 views

Reprojecting xyz rgb file in QGIS?

I am trying to reproject an XYZ RGB point cloud file that I got from a drone mapping software. It is now in WGS84 and I want it in euref32(UTM) or just a local metric system so i can import it Into an ...
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1answer
88 views

GeoTiff to z only (no x&y) in QGIS?

I am searching for a way to convert the european DEM (EU-DEM https://www.eea.europa.eu/data-and-maps/data/eu-dem#tab-european-data) to (xy)z. In fact I'd only like to obtain the z-data (elevation). ...
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1answer
205 views

Converting point cloud (.txt) to shapefile with ArcPy? [duplicate]

I have lots of .txt files (point cloud) which are raw data acquired from from LIDAR and containing XYZI values. I want to convert them to shapefile. Is there a way I can do that instead of adding XY ...
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0answers
73 views

Z value rounded by ArcGIS while executing “Add XY coordinates”

I have a large vectorda (point) dataset in ArcGIS Desktop 10.3.1 File Geodatabase that consists of 1,2 billion points that I created, converting it from ASCII file by "ASCII 3D to Feature Class tool". ...
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1answer
288 views

Merge XYZ tilesets with different origins

So I have hit a snag. I wish to merge multiple XYZ tile sets together. Meaning I have multiple directories which contain tiles in the format /zoom/x/y.png. I tried just copy and pasting them in to ...
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1answer
77 views

In which coordinates (x, y, z) are vertical grids expressed?

When working with 2D maps, coordinates are always expressed in X and Y. Adding a 3rd dimension also adds the Z-coordinate, which typically stands for height. However, when working with vertical ...
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0answers
258 views

gdal_translate outfile without nodata_values [closed]

I want to use gdal_translate to convert a ASCII grid file onto a xyz file. But the ASCII grid is about 5.7Go and the xyz outfile is really bigger (approximately 30Go). To reduce the memory I would ...
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1answer
434 views

Converting part of raster into .xyz file

I have a very large raster whose GDAL Info is as below: Size is 172800, 67200 Coordinate System is: GEOGCS["WGS 84", DATUM["WGS_1984", SPHEROID["WGS 84",6378137,298.257223563, AUTHORITY["EPSG","7030"]...
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2answers
2k views

Latitude Longtitude to X, Y, Z coordinate system using python

does anyone know how to go about converting lat, long, alt to x, y, z where you have an origin for x/y coordinate (specific place in London)? In other words, I have a lat long and alt data and would ...
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1answer
2k views

Contour lines (*.shp) into XYZ

I downloaded a TIFF image from USGS Earth Explorer from which I determined the contour lines and saved them in a shapefile (see tutorial http://www.qgistutorials.com/en/docs/working_with_terrain.html)....
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1answer
2k views

Importing XYZ ASCII Grid Data Into QGIS: Why does GDAL resize the raster?

Question: Why does GDAL import of XYZ gridded data in QGIS modify the dimensions of a raster and can this be avoided? I'm importing XYZ ASCII gridded data that conforms to GDAL XYZ Gridded Data ...
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0answers
316 views

How to get elevation data from XYZ source in Openlayers 3?

I have an XYZ file. For each pair of latitude and longitude values, there is an elevation value in meters in the file. How do I get those elevation values in Openlayers 3? Basically, my map will ...
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2answers
6k views

Extracting elevation data from DEM files using QGIS [duplicate]

I know how to generate contour lines from a DEM file once the file is loaded in QGIS and I also know how to open the attribute table for the contour lines which show elevation against IDs. Is there a ...
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0answers
174 views

Missing 'Z' component from points extracted from polyline in QGIS

I have polylines which were created with XYZ coordinates and after extracting the points (nodes) I want to export these to a .csv file with their XYZ coordinates. When I try the 'save as' function and ...