Questions tagged [3d]
Questions related to GIS objects that have three dimensions.
710
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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 ...
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0
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73
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
#...
- 11
0
votes
0
answers
31
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} > ...
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16
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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 ...
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36
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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 ...
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0
answers
43
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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 ...
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29
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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 ...
- 43
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25
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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 ...
- 19
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1
answer
49
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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 ...
- 953
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answers
53
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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.
- 2,668
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1
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30
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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 (...
- 13
1
vote
1
answer
100
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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 ...
- 13
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33
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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 ...
- 53
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1
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144
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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 ...
- 65
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114
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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-...
- 221
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104
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Python code LiDAR to 3D building footprint
I'm trying to extrapolate a 3D building footprint from a LAS file in ArcGIS Pro . As I understand it the process is filtering the LAS points, classifying the ground and non-ground points, creating a ...
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15
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Input feature is needed to get skyline analysis in ArcGIS Pro to work
I'm trying to recreate a skyline analysis as outlined here: Skyline analysis: an urban environmental physical-design but I'm having several difficulties.
I'm using ArcGIS Pro 3.1.0.
I work in a local ...
- 51
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votes
1
answer
34
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 (...
- 309
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75
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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 ...
- 21
1
vote
1
answer
204
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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 ...
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1
vote
1
answer
106
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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 ...
- 31
3
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3
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124
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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 ...
- 31
-1
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0
answers
24
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All the entities of the layer are not displayed in the 3D scene of my web application using the ArcGIS API for JavaScript
I have an application that I have developed with the ArcGIS API for JavaScript. I am loading some layers that have 1217 entities and when I go to visualize them I do not see the total of the entities. ...
- 13
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0
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68
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Possibilites to save/export a loaded CityJSON layer (loaded with the Plugin: CityJSON Loader)
I am wondering if it is possible to export/save a loaded CityJSON file? I want to to edit it and save it again. What I am wondering in which format I have to save/export it. I tried multi-polygon, ...
- 857
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95
views
Cesium; No Geoid Terrain service provided - no geoid conversion will be performed
I have this Cesium JS (v1.103) in which I tried to plug an existing I3S service, but it's not working:
const viewer = new Cesium.Viewer("cesiumContainer");
let i3SData = new Cesium....
- 9,794
1
vote
0
answers
34
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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 ...
- 11
2
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answers
79
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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 ...
- 21
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15
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How to correctly set the depth in 3D EBK in ArcGIS Pro
I'm trying to run the 3D EBK in some geological data, with latitude, longitude, and elevation:
but the semivariograms are quite bad:
But, if instead of the elevation I use the depth, the model is ...
- 139
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0
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20
views
Symbolising 3d points with custom directional symbology from direction stored in attributes
I have a folder of images taken by a drone, I have extracted the location and camera direction of each of these images using exiftool. I would like to plot these in 3d space to obtain a result ...
- 306
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votes
1
answer
56
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?
- 10.8k
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41
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 ...
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1
vote
1
answer
166
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;
...
- 9,794
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185
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 ...
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1
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0
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25
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 ...
- 61
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0
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51
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,
...
- 9,794
1
vote
2
answers
259
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 ...
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3
answers
534
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?
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30
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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 ...
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1
vote
1
answer
279
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)...
- 61
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61
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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 ...
1
vote
3
answers
84
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 ...
- 141
3
votes
1
answer
89
views
QGIS 3.26.3 3D View rotation is choppy
When I try to rotate a view in 3D it's very choppy. Any idea why this might be?
Video of Choppy 3D view
This is the output from the animation, but it's exactly the same as when I try to rotate with ...
- 3,342
4
votes
1
answer
172
views
Can we create 3D buffers around point data in QGIS?
I have multiple point data with lat, long, and elevation.
I want to create a 3D buffer on one set of points and check for intersection another set of points.
I am using Qgs2threejs for visualization.
...
- 41
1
vote
0
answers
40
views
QGIS: Draw CompoundCurveZ by elevation in 2D
I have a CompoundCurveZ layer in QGIS with Curves that overlap when seen in 2D. Mock Example without Curve:
ID geometry
---- ------------------------------
1 LineStringZ(5,0,5,5,5,5,10,5,5)
...
- 155
2
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0
answers
162
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Convert a PostGIS 2D polygon to a 3D Polyhedralsurface using C#
I'm trying to convert a 2D polygon into a 3D polyhedralsurface because i will use the surface to do a Intersect with other 3D geometries.
The problem is when im trying to create the surface from a ...
0
votes
1
answer
55
views
Creating 3D representation of line shapefile using ArcGIS
I have a line shapefile of links that build a network. Now I'd like to assign each node (or every end of a line segment) a z-value depending on a certain attribute.
Is it possible to then display this ...
- 326
1
vote
1
answer
128
views
How to tell if a layer is Z-aware or M-aware
I am trying to detect if a layer is Z-aware or M-aware. If it is, I need to flag it to be reconfigured without Z/M-awareness.
In the example below, I have already pulled down the layers and am ...
- 13
3
votes
0
answers
183
views
3D globe on QGIS 3D view
I am using QGIS 3.22. Is there a way to load a 3D globe model into the 3d view in QGIS so I can turn it around and etc. like Google Earth? If it possible where can I find or how do I create something ...
- 389
3
votes
1
answer
302
views
Area calculation for non-planar surfaces
I am looking for a way to calculate the area for a big set of 3D-surfaces.
I know, that some of those surfaces are slightly non-planar, which means that the coordinates got somehow "rounded" ...
- 31
0
votes
0
answers
181
views
Export 3D data from PostGIS to any common open and standardized 3D file format
I am mainly curious, because I found this function: ST_AsX3D() in the list of PostGIS 3.2 "ST_As{something}" functions:
st_asbinary, st_asbinary, st_asbinary, st_asbinary,
...
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