Skip to main content

Questions tagged [3d]

Questions related to GIS objects that have three dimensions.

Filter by
Sorted by
Tagged with
-1 votes
0 answers
14 views

Time stamp point cloud to one point cloud LAS/LAZ

I have Velodyne LiDAR data - pcap and track data anpp. Is it possible to integrate this data to create one point cloud? If so, what should I use?
Mily's user avatar
  • 1
0 votes
0 answers
25 views

Visualizing 3D GeoJSON in threejs

I have a 3D GeoJSON of a 3D city model. I want to display it in Three.js, but it does not support this format. Is there a method or plugin that can load the 3D GeoJSON in Three.js? Below is the file I ...
benitThinot03's user avatar
0 votes
0 answers
23 views

3d lines cut below and above a surface (ground)

I have dgn and dxf formatted CAD 3D lines which are "cables" below the ground. These cables are sometimes 1m below ground and sometimes 50cm and 10cm etc., below the ground. I have ...
Malla's user avatar
  • 1
1 vote
1 answer
42 views

Calculating Area of 2D Shape in 3D space

With ArcGIS Pro, I want to calculate the area of a roof. I have LoD2 building data and have only exported the roofs. These roofs have a 2D shape but are situated in a 3D space. When I calculate the ...
obrob's user avatar
  • 887
0 votes
1 answer
84 views

Converting las to pnts for Cesium

I try to convert .las file to .pnts with tileset.json to be able to load it to Cesium viewer. I convert las using py3dtiles. But despite different conversion methods I get my point cloud placed ...
Maryla's user avatar
  • 186
0 votes
0 answers
20 views

Choose DEM layer as terrain in 3D view using PyQGIS

I saw that many 3D classes and methods have been exposed to PyQGIS so I was wondering if choosing a raster layer as a terrain was now possible. I'm working on QGIS version 3.36.1. This is the GUI ...
aogino's user avatar
  • 15
3 votes
0 answers
108 views

PostGIS 3D buffer along an axis

TL;DR In PostGIS, I'm searching the most efficient way to compute a 3D geometry extruded along an arbitrary axis given as a LineString Z in space (each coordinate varies along the axis). Explanation ...
swiss_knight's user avatar
  • 10.5k
2 votes
1 answer
134 views

QGIS Drape (set Z value from raster) to set Z-value along all pixels under a geometry (not only vertices)

In QGIS (3.34 at the time of writing), the "Drape (set Z value from raster)" algorithm (native:setzfromraster) allows the user to assign a Z value to a given vector geometry using a raster ...
swiss_knight's user avatar
  • 10.5k
0 votes
0 answers
34 views

How to make DeckGL-like 3D columnLayer map at country level in QGIS or Illustrator?

I have data for a series of points around the continental U.S. Using deck.gl, I can turn this point data into a nice 3D ColumnLayer map. Now I'm trying to find a way to make a similar map, but for ...
Kirkman14's user avatar
  • 155
0 votes
0 answers
20 views

Vibrocore visualizaition

I just started to use Qgis2threejs to visualize 3D boreholes. I've been recently working with offshore shallow boreholes (2 to 4 m). Once the data input is already uploaded the holes don't pop up, ...
user238861's user avatar
0 votes
0 answers
14 views

Is it possible to export each separate soil layer from a stratigraphical 3d-model, using Midvatten and Qgis2threejs plugins?

I would like to create a 3d-stratigraphical modell in QGIS and thereafter separate each soil layer to stand alone shp-files. I believe that my best shot to do this is with the plugins Midvatten and ...
Niklas's user avatar
  • 35
0 votes
0 answers
67 views

3D georectifying and visualizing wall section of rectangular prism hole dug in ground using ArcGIS Pro

As part of an archaeological excavation, rectangular holes were dug in the ground at a site and then the sides of the holes were photographed with georeferenced paper target chits. I have created ...
MapDeath's user avatar
  • 341
0 votes
0 answers
29 views

Creating an atlas of 3D map scenes in QGIS based on a point layer with camera information

Is it possible to create an atlas of 3D maps in QGIS where the the camera pose for each map is set using values from a point layer? Ultimately, I'm in interested in generating photomontages between ...
George of all trades's user avatar
1 vote
1 answer
68 views

Does QgsSpatialIndex() support Z values, respectively 3D distances?

I am wondering if QgsSpatialIndex() does support Z values, respectively 3D distances? If too short to read: Looking at the underlying libspatialindex I cannot find information neither. However, rtree ...
MrXsquared's user avatar
  • 34.9k
0 votes
0 answers
41 views

Convert a homogenous matrix from xyz coordinate system to zyx coordinate system

I want to change my camera pose from xyz coordinate system(where x-forward direction, y left and z up) to zyx coordinate system ( z-forward y- down and x left) My camera pose is described in an ...
Zac Boussaid's user avatar
1 vote
0 answers
30 views

QGIS 3D viewer autoupdate frames from temporal controller

I am using QGIS 3.30.3 and I am trying to make a cinematic with the 3D viewer of some flood tiles. I have a Digital elevation Model and a few flood tiles with temporal information. Using the temporal ...
luis castillo's user avatar
0 votes
0 answers
93 views

Importing Lod2 Data into Threebox/ThreeJs as georeferenced

I have a project and I want to import my LoD2 data into threebox. I tried this in several way. Original data in CityGML format that contains multiple buildings but since ThreeJS/Threebox does not ...
sevvaldurmazbilek's user avatar
1 vote
0 answers
418 views

Converting GeoTIFF Elevation Data to 3D ZXY Tiles

I have a GeoTIFF file which includes elevation data. I visualized the TIFF by pyplot: from osgeo import gdal import matplotlib.pyplot as plt import numpy as np from mpl_toolkits.mplot3d import Axes3D #...
Homayoun's user avatar
0 votes
0 answers
46 views

How to get the 3D intersection between a Line and a raster in PostGIS?

I successfully loaded a Geotiff .tif file into PostGIS using raster2pgsql, split into 20x20 tiles with the following command: raster2pgsql -s {srid} -I -C -M -t 20x20 {tif_file_path} {table_name} > ...
alexsaleh's user avatar
0 votes
0 answers
36 views

Creating 3D surface / terrain in ArcGIS Pro WITHOUT 3D extensions?

I understand GIS principles, but I am a new user to ArcGIS Pro. I am currently looking to create a terrain type model / surface in 3D, using a georeferenced .ASC file containing ground heights. Is ...
Anna's user avatar
  • 1
0 votes
0 answers
65 views

3D object won't show up on AGOL scene viewer

I'm trying to add a 3D object that has a multipatch texture on to ArcGIS Online Scene Viewer. It's only one object as I'm just testing it out, what I did was made a 3D feature layer and drew out a ...
user217940's user avatar
0 votes
0 answers
51 views

3D web map to QGIS

There is this 3D scan of Curitiba and I would like to know if there is a way to import the elevation data to QGIS. I’m looking to extract some elevation data of a specific area to make a physical ...
Leonardo Moreno's user avatar
0 votes
0 answers
51 views

3-D view of .ovr bathymetry raster in ArcGIS Pro

I am working with .ovr format a bathymetry data in ArcGIS Pro. The dataset has the following 4 files (name.asc, name.asc.aux.xml, name.asc.ovr, and name.prj) When I add click "add data" to ...
ana.lmb's user avatar
  • 43
0 votes
0 answers
59 views

Blank output on 3D Map view on height data with projected CRS - QGIS 3.30.3

I have some CSV height data which has been imported as Lat,Lon,Height with a CRS of EPSG 4326.I want to produce a 3D view which shows each height element as a column and ideally join the points with ...
Bob Crawley's user avatar
0 votes
1 answer
51 views

Map style identification

We are looking for a visualization solution to track a device to locate its floor and room in 3D(especially the skeleton and the room of the building. Now we do have the OSGB data for the whole ...
giser's user avatar
  • 761
5 votes
0 answers
56 views

Styling Polygons in 3D View as in 2D View in QGIS

I have a sample set of polygons as shown in the picture below: How can I keep the same symbology in 3D view instead of the grey metallic color ? I am not sure how to achieve that.
GforGIS's user avatar
  • 3,126
0 votes
1 answer
82 views

Is there a way to link 2D view and 3D view in a layout - QGIS

Is there a way to link 2D view and 3D views in a layout using QGIS? In the 3D view I selected the option of having the view move with the 2D view. However, when I get to the layout and run the atlas (...
Alex's user avatar
  • 13
1 vote
1 answer
143 views

Making map book (Atlas) with filter in QGIS

In QGIS, I want to make a map book (Atlas) with only buildings but only one building showing up per page. So essentially a filter. I am not sure how to go about this. Also, is it possible to have two ...
Alex's user avatar
  • 13
0 votes
0 answers
85 views

Extract complex roofshapes from LiDAR

I've been using the 3D Basemaps Solution on the ESRI Solutions page (I no longer see it listed) for a little over a year now with ArcGIS Pro with mixed but improving results to create scenery for use ...
tarnis's user avatar
  • 73
0 votes
1 answer
298 views

3D surface area with Google Earth Engine

I have my region of interest as a polygon. When I calculate the surface area I get a '2D value' (ie as if it was a flat surface). The problem is, the region is quite full of hills, so the real surface ...
terauser's user avatar
0 votes
0 answers
391 views

Exporting animation video or gif with qgisthree2js plug-in in QGIS

I created a 3D scene with the qgisthree2js plug-in in QGIS and prepared an animation with 18 frames. I'd like to export it as a gif or video, but there are only png and glTF options. I tried screen-...
user2031's user avatar
  • 221
0 votes
1 answer
47 views

Look up table for 3D to 2D EPSG CRS

I would like to write a function (in Python) that receives a 3D EPSG CRS and returns the horizontal EPSG CRS equivalent. Eg. Receiving 7415 (Amersfoort / RD New + NAP height) -> Returning 28992 (...
GStav's user avatar
  • 309
1 vote
0 answers
90 views

Get QGIS to understand dimensions in 3D raster

I want to open 3D raster data in a NetCDF file in QGIS 3.10.4 in Linux. I have a 3D matrix of dims (10000,5000,10) in a NetCDF-formated file. The first two dimensions correspond to longitude and ...
Ferny's user avatar
  • 21
1 vote
1 answer
315 views

How create voxel 3d (x,y,z,attribute) in GRASS GIS from CSV file

I have a csv file with (x,y,z,attribute) x,y,z,attribute are float value, and I want to do a voxel 3D in Grass Gis, the documentation and examples are poor, so please I need some help. I am using ...
etorresm's user avatar
1 vote
1 answer
186 views

Create 3D polygon of airspace above terrain

I have a LAS dataset of mainly vegetation and ground. I am looking to create 3D polygons in ArcGIS Pro that essentially fill in the space above the ground and flanked by the data (trees and bushes) to ...
Anonymous's user avatar
3 votes
3 answers
164 views

Set print extent in demto3D of QGIS diferent than x min, x max, y min, y max

I have an area that I want to print in 3D. The area has 4 sets of coordinates. I first used a polygon of the area of interest, then cut the DEM of the same area. I used demto3D from QGIS to generate ...
Claudia's user avatar
  • 31
1 vote
0 answers
42 views

ArcGIS Pro - Maintaining Resolution in 3D Vertical Exaggeration - Animated Flyover

I'm using ArcGIS Pro 3.1.0 (Local Scene) to make 30 second animated 3D flyovers of various subsea regions along the NA continental shelf. I am encountering an issue with resolution/topography ...
Joe O's user avatar
  • 11
2 votes
0 answers
107 views

Keypoint generation in 3D point clouds with Deep Learning

I have a huge dataset of 3D point clouds (each point consists of X,Y,Z coordinates) and another dataset with keypoints (also X,Y,Z) which lie on quite recognizable structures in the point cloud. As a ...
nmb's user avatar
  • 21
0 votes
1 answer
85 views

Closing 3D map views via Python

I have some 3D map views open in my QGIS session and would like to close them all via Python. How can I do this?
bugmenot123's user avatar
  • 10.9k
0 votes
0 answers
57 views

Spatial neighbors to voxels for R-INLA

I am working on an fMRI dataset that I want to analyse using a Bayesian spatial model in R-INLA. I extracted the coordinates for all these voxels. (See the image to get an impression one such a ...
BasMts's user avatar
  • 1
1 vote
1 answer
228 views

3D centroid in PostGIS

How could I find the 3D centroid of this feature in PostGIS: SELECT ST_AsText( ST_GeomFromText('POLYGON Z ((0 0 0, 1 0 0, 1 0 1, 1 1 1, 0 1 1, 0 0 1, 0 0 0 ))') ) geom; ...
swiss_knight's user avatar
  • 10.5k
0 votes
0 answers
228 views

Visualizing Vector Tiles map in 3D

As I am using QGIS not for a long time I am asking myself whether there is a possibility to visualize a Vector Tiles map resource in 3D in QGIS. In comparison to common shape files there isn't an ...
T. S.'s user avatar
  • 1
1 vote
0 answers
27 views

Calculating relative surface of 3band raster image in QGIS

I am trying to calculate the (relative) area of this image. It is a scan of a tree, the colors indicate the moisture in the stem. If I load it in QGIS, I see 3 bands, the combination of which define ...
Yves's user avatar
  • 61
0 votes
0 answers
57 views

Polygonize a vertical plane defined by a MultiLineString Z in PostGIS

I have to polygonize a vertical plane defined by a MultiLineString Z: SELECT ST_AsText((ST_Dump(ST_Polygonize(ST_GeomFromText( 'MULTILINESTRING Z (( 0 0 3, 1 1 3, 2 2 0, ...
swiss_knight's user avatar
  • 10.5k
2 votes
2 answers
392 views

Varying the proportions of 3D Point symbols in QGIS (3D View)

I am translating a 3D visualization lab from ArcMap to QGIS 3.22. The lab is very simple; draping imagery over a DEM and showing 3D points that are earthquake epicenters underneath the terrain. The ...
aspang's user avatar
  • 23
0 votes
4 answers
1k views

DEM 3D problem in QGIS

I am facing a problem to make this DEM 3D problem in qgis2threejs plugin scene. Does anyone have solution on it?
Abdullah Maroof's user avatar
0 votes
0 answers
42 views

Stacked bar symbols for points in ArcGIS Online

Is there a way to represent single points as stacked bars using multiple elevation attributes on the points in AGOL 3d Scene or by building in ArcGIS Pro and pushing out to AGOL? I would want to color ...
J Thomas's user avatar
1 vote
1 answer
552 views

Visualizing German ALKIS LoD2/cityGML data in 3D map view QGIS 3.22

I have a dataset containing all relevant information to build a 3D building (https://ldbv.bayern.de/produkte/3dprodukte/3d.html) with one layer containing roof information (incl. orientation and slope)...
luidwig's user avatar
  • 61
0 votes
0 answers
74 views

How to create a 3D symbol in QGIS to represent a cylindrical culvert?

Does anyone know if its possible to create a 3D symbol in QGIS to represent a cylindrical culvert? If I use a rectangular polygon base, all of the settings I've looked through so far create a box from ...
Ali Jones's user avatar
1 vote
3 answers
114 views

Overlapping lines or polygon in GRASS GIS 3D

I have a shapefile GIS layer with several overlapping paths. They consist of geodetics/shortest path calculations from several origins to one destination. I want to visualise these paths as either as ...
SPet's user avatar
  • 141

1
2 3 4 5
15