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9 votes

Creating photogrametric point cloud of an object from distributed photographs, here: Making accurate 3D model of building using UAV imagery?

I've done this before with success using the Photosynth Toolkit (http://www.visual-experiments.com/demos/photosynthtoolkit/), except instead of a drone I was hanging my head out of a small plane ...
crld's user avatar
  • 892
6 votes
Accepted

What kind of 3D models can QGIS's 3D View handle?

Good question - I have luck with the .obj format. Try the beachball here: https://free3d.com/3d-model/beach-ball-v2--259926.html.
Jakob's user avatar
  • 7,481
5 votes
Accepted

Viewing a geojson as 3D in cesium

You need to extrude polygons: entity.polygon.extrudedHeight = entity.properties.your_height_field You may need to loop over records, for example: var p = dataSource.entities.values; for (...
WKT's user avatar
  • 2,183
5 votes
Accepted

What is the difference between DEM data sources?

With regards to your question of the difference betwen SRTM and EU-DEM the ESA quotes: The EU-DEM is a hybrid product based on SRTM and ASTER GDEM data fused by a weighted averaging approach and ...
Riccardo's user avatar
  • 2,648
5 votes

Creating 3D polygon roof from LiDAR data using FME?

There is no direct way on doing it in FME. We are developing similar thing right now to be able to do that automatically. For now we have one other solution that is allowing you to draw couple of ...
miso iric's user avatar
5 votes
Accepted

LiDAR 3D modeling using package rayshader and LAS file in R

You can use rayshader::render_points(). Below a fully reproducible example with a point cloud on top of a rayshaded DTM library(lidR) LASfile = system.file("extdata", "Topography.laz&...
JRR's user avatar
  • 9,444
4 votes
Accepted

Is it possible to create floating/"flying" 3D objects in QGIS?

It's possible to do some quite clever things in more recent versions of qgis2threejs. Objects don't have to lie on the DEM, they can float above them (using a constant or a numeric field value), ...
Steven Kay's user avatar
  • 20.4k
4 votes

Viewing a geojson as 3D in cesium

The accepted answer is wrong. Here is the correct example: <div id="cesiumContainer"></div> <script> var viewer = new Cesium.Viewer('cesiumContainer'); var dataSource = ...
Zoran Petrović's user avatar
3 votes

3d triangle roof house model in QGIS?

If you want to use QGIS I suggest to use this workflow: Data needed: DEM of the area of interest A colada Model which represents the buildings( models can be downloaded from this website or can ...
LaughU's user avatar
  • 4,186
3 votes

Is it possible to create floating/"flying" 3D objects in QGIS?

You need a 3D viewer to do that. In QGIS have a look at NVIZ, available through the GRASS plugin. However, in my experience, this will almost certainly not give you a sufficiently satisfactory ...
MappaGnosis's user avatar
  • 33.9k
3 votes

QGIS 3.4 and DEMto3D 2.3 Scaling Error

I reached out to the Author of DEMto3D and received a response that addressed my problem. I repeat his solution here for reference: "The difference that you notice is due to DEMto3D adapts the ...
BoneInspector's user avatar
3 votes

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

You would have to eliminate the option of using SLPK here. This is a known limitation with SLPK in ArcGIS Pro. I worked with ESRI tech support and they finally logged this as a new defect, that should ...
Yogesh Chavan's user avatar
3 votes
Accepted

Create 3D buildings model of large urban area in QGIS with a reasonable size for output file

I finally made it in Blender. I posted the solution in Blender Stack Exchange, but I'm reproducing it below. This is what I did: I joined the meshes of buildings in each city area in just one object (...
Antonio Serrano's user avatar
2 votes

3d print an area from Google Earth

In case anyone else has this question, I found a way at least to export an area (up to 800m x 800m per file) of buildings at once from Google Earth (well, from OSM, which is the source of most of the ...
Charles Martel's user avatar
2 votes

True non-projected 3D grid world modeling

A high-precision, global 3D Cartesian coordinate system is quite useful to the aerospace industry, where satellites orbit the Earth at large enough distances that understanding the true geometry ...
emackey's user avatar
  • 1,456
2 votes

True non-projected 3D grid world modeling

It is true that data in a global 3D cartesian coordinate system will allow you to do distortion-free calculations of 3D distances and angles. And if users are happy with perspective views of the 3D ...
Martin F's user avatar
  • 8,946
2 votes
Accepted

Geographic coordinate systems on 2D screens

It is possible to work only with geographic (lat-long) coordinates, do all the calculations on a sphere and never project them. However, you are correct: Whenever we see a curved surface (a portion of ...
Martin F's user avatar
  • 8,946
2 votes
Accepted

Line Layer seems to be floating and shifted after adding terrain effect in Cesium

I updated the code to query for terrain heights and place the roads on terrain. There's a little fudge factor, the roads are placed 1 meter above the terrain to try to keep them from intersecting the ...
emackey's user avatar
  • 1,456
2 votes

OpenLayers3 + Cesium add 3D Models

var map3d = new olcs.OLCesium({map: map}); var scene = map3d.getCesiumScene(); var modelMatrix = Cesium.Transforms.eastNorthUpToFixedFrame( Cesium.Cartesian3.fromDegrees(24.823608, 35.234403, ...
Apostolis Marios Trampas's user avatar
2 votes

OpenLayers3 + Cesium add 3D Models

Yes, Cesium has support for 3D models. It uses the glTF file format to describe the models. At its simplest, the code looks like this: var viewer = new Cesium.Viewer('cesiumContainer'); var entity ...
emackey's user avatar
  • 1,456
2 votes

Rasterizing vector layer with PostGIS?

I've seen a lot of the same problems you have with this dataset (both this question and your others), and struggled to get this into postgres. Importing into postgres Your geometries are of type 31 -...
Steven Kay's user avatar
  • 20.4k
2 votes

Creating photogrametric point cloud of an object from distributed photographs, here: Making accurate 3D model of building using UAV imagery?

-https://www.mapsmadeeasy.com/point_estimator you can use this to make a flight plan set variables to what you want make sure to pick inspire/phantom 3 as camera near the bottom, you can export this ...
jtgis's user avatar
  • 1,014
2 votes

Creating photogrametric point cloud of an object from distributed photographs, here: Making accurate 3D model of building using UAV imagery?

I think a way to do this is VisualSFM to do the matching of the photos (the stronger the GPU the better) and creating a dense point cloud and MeshLab to create a textured triangulated model from the ...
Jochen Schwarze's user avatar
2 votes

How geotiff converted to 3d model?

A quick search on the internet, I found that there are many tutorials available to show how to import raster DEM in Blender: How to Download and Import a Real World Terrain in blender (Youtube) ...
ahmadhanb's user avatar
  • 40.9k
2 votes
Accepted

Arcscene 3D.wrl file to interactive 3D pdf

With Adobe Acrobat Pro DC or Adobe InDesign you can import *.u3d or *.prc format in PDF. You can use 3D features interactively with these formats in PDF. Export your scene in "VRML" format. In ...
BBG_GIS's user avatar
  • 5,825
2 votes

How are Google 3D objects made in Google Earth now?

Just a guess, I think the 3D effect is generated using some kind of draping of images/street views onto 3D sketches/surfaces. I guess that's where the rough edges come from. It does not appear to be ...
til's user avatar
  • 894
2 votes

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

You can try meshLab, it can open OBJ format files, and it is an open source software. Also Blender can be another option which can import many format files and it is also open source and a very ...
ahmadhanb's user avatar
  • 40.9k
2 votes
Accepted

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

You should add a "height" (or whatever name you choose) to each feature's properties: "type": "Feature", "properties": { "osm_id": "90582821", "fclass": "building", "height": 10 }, ...
Dave Hartnoll's user avatar
2 votes
Accepted

Where has the QGIS2threejs Icon gone?

QGIS is a program with fairly frequent updates. It's quite common to find well-regarded tutorials from a previous version of the program, or with an older version of a plugin. In these tutorials, ...
csk's user avatar
  • 24.9k
2 votes

Importing a .max or .nwd files into ArcGIS Pro

ArcGIS Pro will not support .nwd file, so convert this file into IFC or Revit. IFC file import using interoperability extension in ArcMap or ArcGIS Pro, all data stored in personal geodatabase as ...
Dr.K.Venkat's user avatar

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