Questions related to GIS objects that have three dimensions.

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2
votes
1answer
168 views

GeoJSON: PolyhedralSurface geometry type not supported

I am trying to make a 3D web application which should be able to render 3D buildings (I will be using Cesium, but that is not that important for now). I basically have a database consisting of the 2D ...
1
vote
0answers
54 views

How to get azimuth and altitude from a 3D surface in PostGIS?

I would like to know the azimuth and tilt of a polygon / surface in a PostGIS database. The azimuth should be given e.g. from 0° to 360° degrees. The altitude should be between 0° to 90°. An example ...
0
votes
1answer
69 views

Remove 3D geometry in shapefile using OGR

I have a series of shapefiles, that have 3D geometries (ie: points ZM). I would like to remove the 3D geometry so that the files are 2D. Is there a way to remove 3D geometry from a shapefile using ...
1
vote
1answer
155 views

Cesium: Failed to obtain image tile X : 0 Y : 0 Level : 0

I'm trying to make a Cesium-based 3D web-viewer. At the moment I'm stuck with an error. Let me describe the situation: I have a PostGIS database, containing the 3D geometry of a building (which I ...
0
votes
0answers
30 views

Pulling the building from ground to roof

I use Microstation v8. I have to make a building (solid) from existing property register (on the base level) cut on the top by the roof (which I have already). To sum up - I own the property register ...
1
vote
0answers
33 views

Converting 3d images in meters to feet when exported to dxf

In QGIS 2.10, I am using the raster calculator to convert a metric elevated raster to feet and then create 2 foot contours (no problem). But when I dxf it out and put it in CAD, I can get the contours ...
2
votes
0answers
45 views

3D model to DEM, maintain volume?

Bit of a challenge here which I've been grappling with for some time. I'll explain my full work flow so you can reproduce if needed. I'm creating virtual landscapes in Google SketchUp which I ...
1
vote
2answers
145 views

Can QGIS import Multipatch geometry type?

can QGIS import multipatch 3d geometry type? What is the data structure of multipatch how computer record and draws it ? Is it solid or not??
5
votes
1answer
286 views

Contour lines with imported shape file using Blender GIS - wrong Z values

I've been making experiments with Blender GIS and QGIS. I'm having problems when importing Shapefiles with contour lines, with a field for elevation (ELEVATION FROM FIELD selected when importing). ...
0
votes
0answers
37 views

How to get a mercator projection from a “disk photo”

I'd like to build a real 3d globe of Pluto using latest images made available from New Horizons. I know how to convert a mercator projection into a "12-gores" projection, suitable to be glued over a ...
0
votes
0answers
15 views

Arrangement of vectors and matrix in text file?

My ASCII file has a vector of latitudes, and the indices of those latitude values tie latitude values to the data sharing the same index. That is, if given: latitude[x=0,1,2,3] = 10, 20, 30, 40 ...
1
vote
0answers
111 views

How mix 3D Data from Google Map and one's 3D object?

Is it possible to add some 3D object in the 3D maps from Google ? Which tools should I use (never used 3D modelling tools but I'm motivated :) Here is the picture that triggered my question :
1
vote
0answers
47 views

How do I extract building elevation values from Multipatch GDB

I have a GDB Multipatch Buildings layer that I open with ArcScene or ArcGlobe. I want to extract building elevation values, but this is not stored in the attribute table. I can run a "Add Z ...
2
votes
0answers
84 views

How to create isometric 3D map with postgis

I am looking for a way to create isometric 3D maps based on data stored in a PostGIS database. My idea is to create a PostGIS function that will return a SVG image like the one below. It is easy to ...
0
votes
1answer
45 views

What Story Maps support replacing the map with a 3D scene?

I am currently creating story maps to be able to display a 3D scene to users and I am trying to decide which layout works best. Right now I have run into an issue where only certain story maps will ...
1
vote
1answer
60 views

Donut polygons getting filled when exporting to 3d Web Scene

I have built a model using ArcScene by draping 2D polygon data over an elevation raster and am having issues when using the Export to 3D Web Scene tool. The tool builds the model successfully, but ...
2
votes
2answers
111 views

Exporting from NVIZ

I need to export a 3d model made from a DEM with a satellite photo draped over it. I'm using qGIS 2.8.2 and NVIZ, and am having a few problems. 1) How do I get a full colour image draped over a DEM ...
2
votes
0answers
72 views

Creating a 3D model of airspace that I can interrogate to see if some other feature (like a tree) will intrude into the airspace

The goal is to create a 3D model of imaginary planes in space that I can interrogate to see where other objects in the vicinity of the model cut through any part of that plane. For example, an ...
1
vote
1answer
238 views

Elevation data from 3D shapefile of buildings to raster DEM

I have acquired LoD2 building models in the 3DShape format (Polygon ZM). This LoD2 data needs to be prepared for a R-script of solar irradiation calculations on roof surfaces, but which can only ...
2
votes
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 ...
0
votes
2answers
120 views

3D equivalent to ArcGIS API?

I am currently working on a 3D mapping project. And I have created some KML files from ArcGIS Online, and I have edited them in Google Earth to adjust the 3D attributes. I am also designing a webpage ...
1
vote
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, ...
2
votes
2answers
65 views

3D queryable GIS

I've used GIS for many years, and now I'm moving into 3D GIS, but I have some questions. Say I have a 3D model of a viliage, I can get this into Blender, but I want to be able to run GIS type ...
3
votes
1answer
51 views

How to create 3D boxes within a KML file without ground contact?

I'm actually trying to visualize the output of an atmospheric model within Google Earth using a KML file. The model is divided into several 2.5 x 2.5 x 2.5 km boxes and each box should get a color ...
2
votes
0answers
514 views

3D geological model from cross sections, preferably using Open Source software

I work with engineering geology, and my workflow includes making many cross sections of a given site, with data from maps, fieldwork (outcrops) and boreholes. What I'm looking for is a way of taking ...
0
votes
1answer
177 views

pgRouting with multiple floors [duplicate]

Hoping I might get some help with indoor multi-floor routing using pgRouting. At the moment, I have a dummy network system created to analyze shortest routes between locations with the results served ...
0
votes
1answer
98 views

ArcMap 3D profile graph gives a level line

ArcMap's Profile Graph in 3D analyst works great for drawing a line on the map and seeing the profile. I am doing this part easily; single segments, multiple segments it works fine. However, it is ...
0
votes
1answer
340 views

Issue with Cesium Terrain Provider

Even after adding blank terrain files at the specific directories : 0/1/ and 0/0/, I still get the error message and a blank globe. This is not an issue with CORS. I am using http-server (node) to ...
1
vote
1answer
52 views

How to store binary data referenced by 3D coordinates (xyz)?

I would like to store huge amounts of voxels (3D cubes with color and some other values) in a gis database. Does someone can recommend a database (indexing) system, where I can store binary data (a ...
1
vote
2answers
265 views

Unable to serve Cesium Terrain files

I am trying to generate 3d Terrain. I am serving the terrain files at localhost:8081 Here is the Cesium Code var viewer = new Cesium.Viewer('cesiumContainer', { baseLayerPicker : false, ...
1
vote
0answers
31 views

How to load VRML data into CityEngine

I can't see whether Esri CityEngine supports VRML files directly, or how to load them if they're not supported (the online materials are more marketing-focussed than technical). Is there a ...
2
votes
1answer
40 views

Is it possible to export 3D model data from SimUrban?

Today I came across a 3D modelling package I haven't seen before - SimUrban. The client wants to migrate their SimUrban project to a more modern system, and the provider who built it is no longer ...
0
votes
0answers
127 views

Visualizing Space-Time-Cube netCDF file in ArcMap 10.3

I just created a netCDF file containing a Space-Time-Cube with 353 time steps using the new "Space-Time" Toolbox in ArcMap 10.3 However it seems, that only ArcGIS Pro can visualize this netCDF file ...
0
votes
1answer
260 views

Does ol3-cesium accept DEM files?

I'm using OpenLayers 3.6.0. I want to use ol3-cesium. Ol3-cesium use cesium for glob visualization. I have a question: In ol3-cesium, Can I see Ups and downs of land? In other words Does it accept ...
2
votes
1answer
172 views

Visualizing Tunnel mapping with ArcGIS

I have a cluod point of a tunnel from indoor laser scanner. Are ther any features to create nice 3d simulation / visualisation / animation of it that will includ grid at surface like in the attached ...
1
vote
2answers
254 views

Cross-platform 3D mapping solutions

I am a new software developer who created an application at my work that continually displays content on the Google Earth desktop application using KML. My work now would like a mobile solution to my ...
1
vote
1answer
71 views

PostGIS 3D bounding box query that envolves all 3 axes (xyz)

I have some experience with PostgreSQL, but not with PostGIS, and for the life of me I can't make my bounding box take the Z axis into account. I have a points table with XYZ columns. I add another ...
3
votes
1answer
115 views

Postgis query on 3D cube does not use index

I am testing Postgis on the follow query: SELECT * FROM particles WHERE position &&& 'LINESTRING(0.08537 0.0738 0.0145,0.0953 0.0837 0.0345)'; that returns about 100k rows from a ...
4
votes
3answers
731 views

3d vector and geometry operations in open-source GIS

There is some really good open-source software available to work with 2D vectors. For example QGIS has operations like buffer / clip / dissolve / select by location / join attributes by location... ...
1
vote
0answers
129 views

GIS Wireframe into SketchUp

There used to be a plugin that allowed GIS data (.shp file) to be exported and then opened in SketchUp. This plugin no longer exists. I have wireframe data of buildings that is 3D in ArcGIS that I ...
1
vote
1answer
247 views

Extruding a 3D stack of polygons on top of a map, e.g. with KML

I have data for the composition of rock layers in several polygons on earth. I would like to plot a stacked chart of the rock layers, colored based on layer metadata. Here's a mockup, where rock ...
0
votes
1answer
51 views

Rasterizing a simple sloped line

I am aware how to rasterize a 2D line, but if I have two coordinate triplicates (x1,y1,z1) and (x2,y2,z2), how can I efficiently rasterize the resulting connecting line such that the raster cell ...
0
votes
1answer
179 views

Is it possible to show 3d models using QGIS?

I can show vector layers from PostGIS using QGsMapCanvas and QGsVectorLayer in my standalone application. But now I need to show 3d models, for example 3dmax or sketchup, of some buildings over vector ...
5
votes
1answer
172 views

Can I identify if a point is inside a volume in PostGIS?

We are currently investigating PostGIS as an option to look up three-dimensional blocks which contain a point (and later also lines). At this point in time I cannot see any functionality that operates ...
2
votes
1answer
77 views

How to set feature vertex Z from an intersecting feature's Z?

In ArcGIS how can I set the Z values of the portion of a line that intersects another line to the Z values from the other line? A batch process is preferred. I tried FeatureToLine, but the null ...
0
votes
0answers
141 views

Explanation for ArcGIS Cut/Fill tool error

I am curious if anyone has experienced a similar error (and found a solution) when trying to run the Spatial Analyst/3D Analyst CutFill tool? The problem is as follows: When executing the tool on ...
0
votes
0answers
74 views

Raising height of a certain part of choropleth

I have a working choropleth map which shows number of patients in a certain coloured area. I want to raise the height of the specific area according to the patient count. The variable height is equal ...
2
votes
1answer
1k views

Creating 3D terrain/model from contour lines, preferably using Open Source GIS?

I am looking to create 3D terrain from a contour map that I have (originally inside a PDF). The contour lines are able to be viewed as paths in Adobe Illustrator. There are two types of lines: 7m and ...
3
votes
1answer
279 views

How to find the concave hull for a cloud of points in 3D space?

The existing algorithm for convex hull is not able to capture the feature for a set of 3D points. Moreover, I found few mathematic tools have this function to obtain the concave hull and their ...
1
vote
0answers
54 views

Trajectory / ballistics

I'm trying to calculate if a canon will be able to shoot over a height in the terrain. lets saytThe canon have to be 15'000-18'000m from the target, and the impact degrees have to be over 30 ...