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

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1answer
60 views

3D OSM buildings seems to be floating and shifted after adding terrain effect in Cesium

I had made a 3D view of the osm buildings using cesium. In which i had added a terrain effect using the standard cesium terrain provider as below var viewer = new Cesium.Viewer('cesiumContainer'); ...
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1answer
47 views

Free Digital Elevation (Terrain) Model of Europe or Germany

Is there any free (or not expensive) source of Digital elevation model of Europe or Germany with the resolution of 10 meters or better and vertical accuracy of +-5m or better?
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1answer
2k views

3d print an area from Google Earth

Is it possible to extract all 3d data (terrain + objects: buildings, vegetation, landmarks, etc.) from Google Earth in an easy way and 3d print it? I found tutorials about extracting the terrain ...
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0answers
87 views

Questions about SRTM , .hgt format and the sea level/coastline

What a nice place here ! The questions/answers system is very elegant. I have read and get some useful informations allowing me to write a little .hgt reader... I am working on C.G.I and create 3d ...
2
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0answers
265 views

ArcGIS - multipatch and surface

I want to get 3D building. I have DEM surface and 3D feature of building roof. I created multipatch class by extruded building roof with '-' value. Is it possible to create building from this ...
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0answers
151 views

Importing 3D models/wireframes into QGIS

I was wondering if Qgis2threejs is able to import 3D models (wireframes in 3D dxf) from GoCad, Datamine or any other 3D modelling software? If not, is there any other plugins for QGIS that would be ...
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0answers
32 views

Creating equirectangular projection from 3d spatial model?

Apologies if this is not the right group for this question, but I think there may be people here who can help. (I'm open to suggestions for better places to ask.) I have a program that contains a ...
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0answers
59 views

Creating Dynamic 3D Buffers in ArcGIS Pro

I am currently using ArcGIS Pro to model WiFi router signal distribution and I would like to use buffers to display them in a 3D format. I have used the Buffers 3D tool to create spherical buffers, ...
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0answers
70 views

3D tool for a visual analysis

Given a 3D mesh I need to visualize and analyze properties and elements generated from the object such as: tensors coplanar/similar elements ( coplanar faces, aligned vertices, etc etc, 3D geometry ...
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0answers
503 views

How to import 3D geometries from DXF, VRML or X3D into PostGIS 2

we plan to develop a webbased 3D GIS using PostGIS 2 and GeoServer with a W3DS. The architecture works fine, but i have problems to import 3D geometries into PostGIS. The geometries come from AutoCAD ...
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0answers
13 views

Contouring and rendering bathymetric & other attributes in QGIS

I wish to visualise (2d & 3D) and contour point sampled bathymetric and other associated attribute data (biovolume and bottom hardness) in QGIS. The source data files are CSV files consist of ...
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0answers
7 views

How ArcScene import collada to multipatch?

I want to know how ArcScene creates triangles, triangle strips, triangle fans and rings as in the attaching picture. What is the rule or algorithm that it uses?
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0answers
20 views

City engine web scene (large model)

I have a tag bit of a problem I made a 3d model of a city (about 21000 models) and using the city engine web scene viewer from Esri is slow and eats up a lot of resources unfortunately (and I'm ...
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0answers
76 views

collada2pgsql: importing 3d models into postgis

I have been researching for a tool (open source) for importing collada (.dae) file into postgis and i have found this collada2pgsql command. I really don't know where to find it but it seems to be ...
0
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0answers
135 views

What are the top 5 file types for 3D model?

I don't know much about GIS but I'm investigating a project that requires a 3D model of a hilly large town (town centre, suburbs, golfcourse, etc.). I'm not certain which file-type of these ...