Questions tagged [3d-model]

Virtual representation of a real-world object that is vizualized in a 3-dimensional artificial space.

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Creating a 3D polygon layered over a DEM

I have a polygon which I have draped over a DEM raster layer so that it has z values matching the terrain underneath it. I now want to turn this polygon into a 3d shape where it is 5 meters tall with ...
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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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Importing LandXML data to QGIS 3.22.3

I am fairly new to QGIS and working in the Environmental Impact field as a noise specialist. We use a noise modelling software called CadnaA which is powerful, but not very user-friendly. To get ...
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How to get data/coordinates from Mayavi 3D plot by mouseclick on any point in the plot

I have used a Digital elevation model, to create a 3D model of a terrain using Mayavi mlab. My next task, is to be able to get coordinates of any point that I click on the 3D model. Once I get the ...
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3 votes
1 answer
582 views

QGIS does not show 3D models with textures in 3D map view

The problem When I load 3D models (Wavefront .obj files) to QGIS 3.22 on Win10, they show up correctly in 3D view, but only when Shading is set to Realistic (Phong) or CAD (Gooch). When I select ...
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Exporting 3D data including color in QGIS

I am a beginner in using Qgis, and my goal is to print elevation models with color layers (e.g. rock or forest) with my 3D printer. How do I get the 3D data exported from QGIS without losing the color ...
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How to set wall texture in osmbuilding-leaflet?

I'm working with osmbuilding-leaflet to render 3D features on map but there is a problem. After rendering features wall of buildings doesn't have texture. But in the basic osmbuilding library wall ...
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Converting 3D model to heightmap in form of image

I have got about 20000 small 3D models in form of .glb files. Is there some way to project them onto heightmaps with GDAL or other software?
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Quantitative Structural Modeling (QSM) using LiDAR data in R

I am fairly new to QSM modeling. I have come across softwares such as simpletree and simpleforest that can create a QSM. There is also a R package called aRchi that works with QSMs derived from these ...
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3 votes
1 answer
229 views

When publishing 3D Image from ArcGIS Pro to Online the textures are solid white instead of Original

I have a 3D image in .obj format. When I upload it via the Import 3D Files tool in ArcGIS Pro it appears with the original texture colors as it should be (for example, the red roofs of the buildings ...
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LiDAR 3D modeling using package rayshader and LAS file in R

The rayshader package in R allows beautiful 3D modeling in R. Now I was trying to first try and overlay a LAS file on top of a base-map which is a Rayshader array object. I was trying %>% to link ...
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Obtaining city model for modification in CityEngine from LiDAR point cloud

In ArcMap I transformed the point cloud into Multipoints and then into Singlepoints and I obtained this model in ArcScene. Is it possible to transform these points into 3D objects? Finally, I would ...
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I obtained some elevation data from the USGS website and tried importing it into BlenderGIS and SVDesigner (SoilVision). However, I get a weird render [closed]

The first image is rendered on SVDesigner, the second image is rendered on Blender GIS and the third image is the raster file I obtained from the USGS website.
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Setting the 3d view function for a polygon layer

I am trying to create a 3d model of an archaeological site on QGIS. I had some contourlines, I made them polygons using the "polygonize" plugin and I categorized the polygons with a colour ...
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Seeking QGIS version, or plug-in, for distributing QGZ project with simple user-interface and read-only user privileges

I would like to distribute read-only 3D mapping products to the non-GIS general public but am not sure of an easy way to do that with QGIS. I see how to use Settings to create a customized user ...
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1 vote
1 answer
467 views

Converting River Channel Cross-Section Data to Bathymetry

I have multiple surveyed cross-sections of river channels and need to convert this data into 3D polylines (shapefile) for use in a hydraulic model. The cross-section data is typically supplied in &...
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-1 votes
1 answer
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Importing a .max or .nwd files into ArcGIS Pro

A client provided me with a .max and .nwd formate 3D model for a site. I'm trying to get it into ArcGIS Pro but these formats appears to be unsupported. Has anyone had any success converting .max ...
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1 vote
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114 views

How is georeferencing information stored in geo-refrenced 3d models?

I have a .obj file downloaded from Open Drone Map, labelled as geo-referenced model. How can I figure out the geo-referencing information stored in it? I need to use it in unity or any other such ...
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1 vote
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213 views

How to create a 3D Map with multiple layers?

This is a Generic question, if it is not applicable please delete. I was wondering if it was possible to make a 3D map (such as seen below) on QGIS version 3.10.0 The image is basically showing ...
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1 answer
357 views

Getting Surface Area on 3D Objects (ArcGIS Pro)

TLDR: I have a 3D multipatch feature class and need the surface area of the facade of the building. I brought in some data from Revit into ArcGIS Pro, processed it (project it, georef), converted the ...
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2 votes
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33 views

Why geometryInstances not showing on Cesium 3D model?

I have the following code, but geometryInstances is not showing up on my 3D model. propertyPlacemark.push(viewer.entities.add({ geometryInstances : new Cesium.GeometryInstance({ ...
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1 vote
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98 views

How to colour code the building floors?

I would like to color code floors (like the one in the picture). How do I go about doing it? My 3d model is in glTF format. I am using cesium as webclient platform.
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How do I show floors to on a polygon using CesiumJs

I have a gltf 3D building model on cesium. I would like to color code the range of floors. i.e. 2-5 floor, red 5-10 blue etc. How do I go about doing this?
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3 votes
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734 views

How to convert .OBJ 3D Mesh Georeferenced file generated from OpenDroneMap to .kmz format for Cesium?

I have Open Drone Map Output of a 3D Mesh Object file in .obj extension. I want to convert it into .kmz format to put it into Cesium Ion. How can I convert the files in the picture to a .kmz format ...
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1 vote
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339 views

Adding Models dynamically to fit the polygons size Cesium JS

I am trying to add 3D glb models to fit the parcel/geom size of the polygon. What i wish to do is that the model should sit within the boundary of the polygon and fit to the polygon size. I have a ...
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1 vote
1 answer
238 views

Where has the QGIS2threejs Icon gone?

I am trying to create 3D maps. I am using QGis2threejs. I know I can also create a 3D map using 'New 3D Map View', but I want to try QGis2threejs. However I have two questions. When I install the ...
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2 votes
1 answer
69 views

How to warp 3D model to take into account horizon curvature?

I am using USGS Astrogeology data for the Moon's south pole. Here's the same dataset at half resolution: "LRO_LOLA_DEM_SPolar875_10m.tif (tif) 278 MB" on this page. I already have a process for ...
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2 votes
0 answers
31 views

Support materials and shaders in ArcGIS when importing model from 3D Max?

Does ArcGIS support materials and shaders when importing a model from 3D Max? Can I change the texture of the model when it is already added to the scene? How to do it? Esri::ArcGISRuntime::...
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2 votes
0 answers
723 views

In QGIS 3.6, where is the "Enable 3D renderer" vector layer property?

In QGIS 3.4 I could enable the 3D renderer for a vector layer (properties/3D view/enable 3D renderer). I can't find this option in QGIS 3.6 anymore. How can I activate this again for a vector layer?
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2 votes
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743 views

Conversion of Fbx or Obj to Cesium Tiling [closed]

I have a an OBJ File and a FBX File of very large size (OBJ = 25GB & FBX = 6GB) I'm looking for a way to convert either of them into Cesium Tile Format. I have tried using Pix4D software which is ...
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1 answer
372 views

QGIS 3.4 and DEMto3D 2.3 Scaling Error

I'm having a scaling problem when using DEMto3D and extracting STL's for later manipulation. I have a merged TIFF file for Australia and am attempting to extract models of each state so I can print ...
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1 vote
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434 views

Extract Layers form .slpk File

I have been given an .slpk file generated by Drone2Map. I can import the .slpk file into ArcGIS Pro but I'm unable to edit the 3D layers in the package. I have not been able to find a way to extract ...
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Generating tree structure for 3D models?

I want to create a tool for converting different type of 3D models into Esri's i3s form: This repository hosts the specification for Scene Layers which are containers for arbitrarily large ...
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1 vote
1 answer
1k views

Mapbox GL JS - 3D Buildings - display only some buildings in 3D

I am using this example provided by mapbox gl js: Display buildings in 3D Now the problem is I only want to show some buildings in 3D. How can achieve this? I don't know where to find the source-...
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7 votes
1 answer
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What kind of 3D models can QGIS's 3D View handle?

I'm trying to get QGIS to load a 3D model made in sketchup, as seen here: However, the model is not loading in the QGIS 3D Viewer. Any suggestions? QGIS does not give any input on what type of file ...
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Automatically Recognised Targets for Combined Laser Scanning and Photogrammetry

I'm currently performing an engineering honours thesis on terrestrial photogrammetry and laser scanning in Archaeology. Both methods will be used to document a single location first and analysis will ...
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1 vote
1 answer
418 views

Seeking open source or free tool to open 3D Mesh GIS files?

I'm looking a way to open 3d Terrain Mesh files. I have four different folders with same 3d content , I'd like to open one of them : Cesium folder (with internal Tile folder, web.config, tileset....
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Planarity Checking for Building walls

While viewing 3D buildings in ArcScene, a flickering error(refer screenshot below) can be seen visually due to the Non planar surface. The options I have checked are Topology in ArcGIS & QGIS, ...
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1 vote
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780 views

Using 3D imagery in ArcGIS Pro?

I have a Lidar Scan from the inside of a building, in the program Leica Cyclon (.ptg .ptz .xyz) and/or Autodesk ReCap (.rcp .pts .rcs .e57). I need to import this data into ArcGIS Scene for 3D viewing....
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2 votes
1 answer
1k views

Creating 3D polygon roof from LiDAR data using FME?

I have LiDAR data of a building and would like to construct a 3D Model using FME 2016. The LiDAR data shows that the structure has sloped roofs with various other elements on the roof surface (e.g. ...
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0 votes
1 answer
131 views

Grass gis - 3D data set interpolate to 3D raster

I have a dataset of 70,000 points and I would like to interpolate the properties as a 3D raster. I have created 'slices' of properties each meter of elevation in the model domain; approx: 200 slices. ...
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2 answers
1k views

Uploading 3D Buildings with Textures to ArcGIS Online

I'm doing a small project where I want to create 3D buildings from building footprints. I have acquired the heights of each building and have extruded them in ArcScene. Then I use Layer 3D to feature ...
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2 votes
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1k views

3D building data is stored in Google Earth

I was wondering in what way (data format, infrastructure) 3D building data is stored in Google Earth. I am very impressed by the quality and performance. Are the vertices of the mesh stored in spatial ...
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3 votes
1 answer
1k views

Convert gml to raster in QGIS

I have a dataset of type citygml (*.gml). It includes information about buildings and their rooftypes. you can find a sample file here: https://www.opengeodata.nrw.de/produkte/geobasis/3d-gm/3d-...
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1 vote
0 answers
259 views

How to apply texture on a 3D model using drone images with python? [closed]

I have generated a 3D model in .OBJ format using UAV (drone) images. But this model doesnt have texture so i want to have it textured using the original UAV images. And this should be done in python ...
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1 vote
1 answer
2k views

Arcscene 3D.wrl file to interactive 3D pdf

I want to create an interactive 3D PDF for my customer from my 3D data in ArcScene, which seems easy in principle but is becoming an odyssey. I would like to know if someone have any easy solution ...
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1 vote
0 answers
208 views

Error whilst exporting 3D pdf from Global Mapper

I’m try to export a 3D PDF from Global Mapper and I’m get this error message: Error exporting to 3D PDF file. Could not create U3D file. PDF3DOverlay.cpp - 645 Version: v18.2.0 (64-bit) Build Time: ...
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2 votes
1 answer
1k views

3d triangle roof house model in QGIS?

Hi, I know that the is a possibility to "build" 3d structures - or rather to visualize shapefiles in 3d - in QGIS. ie. a "reconstruction" of a redoubt I have created earlier Alhtough I have not found ...
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2 votes
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590 views

Generate 3D terrain Model at Runtime dynamically

I need to subset terrain in Cesium and make the output exportable in any of the common formats like WRL, OBJ etc. I have found one such example here. I have been searching the web for days but ...
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1 vote
0 answers
332 views

Make 3d model from picture and calculate volume

I have a picture (fictional) of a mountain. What I want and am not able to do without help, is to make the coordinates and height to the right scale. I have a line that represents 10 km on the ...
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