Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

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.

0
votes
1answer
34 views

Open Source way to process a large set of ungrided XYZ (LiDAR) files

I have a large set of ungrided xyz text files (LiDAR PointCloud) and want to export them to any raster format (tiff, asc, gridded xyz...) for further GIS processing. The source: https://www....
0
votes
0answers
17 views

Plugin Not Installed in Qgis

I am using QGIS3.4 and want to in instal XYZ Tile plugin. this plugin(XYZ tile Ver2) released today,but not installed successfully. Plugin Link: https://plugins.qgis.org/plugins/tiles_xyz/ can anyone ...
0
votes
0answers
24 views

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 ...
3
votes
1answer
33 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 ...
0
votes
1answer
42 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 ...
0
votes
0answers
27 views

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 ...
1
vote
1answer
40 views

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 ...
0
votes
0answers
18 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 ...
0
votes
1answer
56 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 ...
2
votes
1answer
123 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 ...
0
votes
0answers
16 views

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 ...
4
votes
1answer
159 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 ...
1
vote
0answers
120 views

Convert Z/X/Y 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 ...
1
vote
0answers
58 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 ...
1
vote
0answers
48 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 ...
1
vote
0answers
38 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 ...
0
votes
2answers
235 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,...
1
vote
1answer
326 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....
2
votes
1answer
199 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 ...
1
vote
3answers
388 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 ...
4
votes
2answers
338 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 ...
0
votes
0answers
40 views

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 ...
1
vote
1answer
66 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 ...
0
votes
1answer
107 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 ...
2
votes
2answers
241 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 ...
2
votes
1answer
895 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. ...
1
vote
0answers
74 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 ...
1
vote
0answers
76 views

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); ...
1
vote
1answer
6k 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....
2
votes
1answer
166 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 ...
0
votes
1answer
318 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/...
2
votes
0answers
208 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 ...
1
vote
1answer
82 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). ...
0
votes
1answer
186 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 ...
0
votes
0answers
68 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". ...
1
vote
1answer
238 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 ...
2
votes
1answer
76 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 ...
2
votes
0answers
193 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 ...
1
vote
1answer
396 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"]...
1
vote
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 ...
1
vote
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)....
6
votes
1answer
1k 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 ...
1
vote
0answers
293 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 ...
1
vote
2answers
5k 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 ...
1
vote
0answers
168 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 ...
6
votes
1answer
3k views

Generating series of cross sections (profiles) along line using QGIS?

I have a set of points (xyz) along an axis. Is there any way in QGIS to generate cross profiles along this axis each 10 meters with, for example, +-15 meters right and left from the axis?
10
votes
1answer
6k views

Convert huge XYZ CSV to GeoTIFF

I have a huge amount of data in the form of CSV containing UTM coordinates as X and Y and an elevation value as Z information. I need to convert these data into a DEM as GeoTIFF for further analysis. ...
2
votes
0answers
524 views

Convert folder of XYZ png tiles to TMS Tiles [closed]

I have elevation/terrain tiles downloaded from https://s3.amazonaws.com/elevation-tiles-prod/terrarium/{z}/{x}/{y}.png I need to convert them to TMS Tiles. Is there a python script that can do the ...
3
votes
3answers
963 views

Can ArcGIS Desktop create LAS (or lasd) files from ASCII data?

I have many ASCII files containing LiDAR xyz values. In order to create an ArcGIS LASD file, I need to convert these ASCII files into las files. I can do this with FME or LAStools, but I can't see a ...
2
votes
2answers
346 views

Where does “Add XY Coordinates” tool get data from?

I am using the ArcGIS Add XY Coordinates tool to populate XYZ values in a shapefile after converting .las data to .shp using LAS to Multipoint tool. Does the Add XY Coordinates tool get the location ...