3D is an object that has three dimensions.

learn more… | top users | synonyms

2
votes
0answers
173 views

Three-dimensional interpolation of temperature profiles using gstat in R?

I'm working on a problem in which I'd like to interpolate a set of oceanographic temperature profiles over a three-dimensional matrix of unsampled x, y, & z locations. The data to interpolate is ...
0
votes
1answer
102 views

file formats to represent georeferenced 3D data

I am looking for an overview of file formats that can store geo-referenced 3D geometries. There are no further requirements such as texture support, etc. I have found the following formats so far and ...
1
vote
1answer
87 views

Can I define a transformation between 2D and 3D in Geotools?

I'm using Geotools, and I need to convert coordinates between 2D and 3D coordinate reference systems. I recognize that there's no universally-correct way to do this: 2D -> 3D means "making up" a Z ...
0
votes
0answers
68 views

Displaying 3D city model from PostGIS 3D backend

I know that openlayers doesnt support 3D yet. I heard about Kartograph has 3D features but Does Kartograph support reading data from backend database especially PostGIS? I would like to create a 3D ...
1
vote
1answer
70 views

Possible to store 3D features such as dome into geospatial database?

Is it possible to store 3D features such as dome into geospatial database such as PostGIS? I know that it can store x,y,z data, can such complex features be stored into database?
0
votes
1answer
40 views

Political world map texture?

What is correct name of texture and/or projection, which is suitable for 3D engines? I want to apply world map to 3D sphere, but a variety of images found by Google makes me thinks that some of them ...
1
vote
0answers
70 views

How can I extrude a polygon “below” a base height?

I am creating some animations and short movies in ArcScene showing how a number of disparate datasets relate to one another. In one of these movies my "big finish" is to extrude a number of polygons ...
0
votes
1answer
73 views

Simple georeferenced 3D data format for building models

I am looking for a simple georeferenced 3D-data format to store very simple building models. Each building should be represented as a number of poylgons, semantics do not matter. It would be ideal if ...
1
vote
1answer
95 views

creating GIS data directly on camera images

If I'm taking few photos with superimposition and enabling a stereo system for images pairs, Is there a software for 3D or 2D calibrating that will enable then creating GIS vector data directly on ...
1
vote
2answers
428 views

Develop 3D buildings with roof structure from raw data

I recently received a task to develop 3D buildings with roof structure. All I have now is satellite images and aerial photographs covering the entire urban area. After reading some previous methods, ...
1
vote
0answers
54 views

PostGIS 3D Extrude function

I selected buildings from OSM (which represents my city). I insterted a new column 'height' and I filled with a random number exactly number 2, so every building have 2metres altitude. Buildings are ...
4
votes
2answers
129 views

How can I add 3 axis orientation information to my photos?

I have a survey project where I need to record not only the location, but the direction (bearing and angle of elevation/depression) that the camera was pointing at the time the picture was taken. ...
2
votes
1answer
102 views

RDF representation of 3D-geodata?

When it comes to 2D-data it seems there are a couple standards out there to represent it in a semantic way (GeoSPARQL, NeoGeo, ...). However I couldn't really find one to do that for 3D-data. I have ...
1
vote
1answer
17 views

How can I create a radially-symmetric surface from a profile in ArcGIS 10?

I have created an expected profile for a radially-symmetric feature (an impact crater) using numerical modelling and would like to compare this with the actual topography (a DEM). My plan is to do ...
3
votes
2answers
170 views

What programs would allow for the mapping of a geoid in 3d?

I would like to find a method for plotting an exaggerated geoid (e.g. topography): I primarily use R for my work but would be interested in other open source software options (e.g. QGIS w/ GRASS). ...
2
votes
1answer
326 views

How to import a 3D DXF file into QGIS with z information as attribute value?

I have a dxf file of 3d contours. after import it does have only layer,x,y attribute and doesn't have Z attribute. how can I provide Z attribute to create a TIN file.
10
votes
4answers
748 views

Looking for a free program for 3D visualization

Looking for a free program or web software for 3D visualization. I'd like to have an ArcScene like abilities. No editing needed, just need to see the data in a 3D format. It'd be really helpful for ...
1
vote
1answer
274 views

Where can I obtain 3D data for Singapore?

I am looking for providers of 3D maps/models of Singapore. This might be either from photogrammetry/laser techniques or based on a DEM + building footprints/landuse with a height attribute. Is any ...
1
vote
0answers
64 views

How to define Z dimension on table with PostGIS for import in TileMill?

I'm trying to reproduce the idea behind this blogpost from Mapbox, but with other data, for example the ne_10m_populated_places_simple dataset from Natural Earth. By adding a z-dimension to the data ...
2
votes
1answer
72 views

ST_ZMax() does not exist in PostGIS

I'm trying to follow this example on Mapbox blog, about using 3D shapes in PostGIS. The database-query is this: DROP TABLE tilemill_buildings; CREATE TABLE tilemill_buildings AS SELECT ogc_fid, ...
5
votes
6answers
3k views

3D perspective on maps in Leaflet, CartoDB?

Are there any JS library out there that would render normal, flat maps (like Leaflet) into a perspective map like this one, on the web: Also, anyone seen anything that could turn CartoDB data into ...
2
votes
2answers
229 views

How to increase resolution of 3D image in GRASS NVIZ

I am trying to make 3D visualization of terrain data and orthophoto using GRASS NVIZ via QGIS. I have been able to import both the DTM and the orthophoto in NVIZ window and successfully draped the ...
0
votes
0answers
178 views

How to draw 3d objects from .kml file on gwt-openlayers map?

I tried to run gwt-openlayers KML example on my PC but failed to see KML layer. I set protocolOptions.setUrl("http://dev.openlayers.org/releases/OpenLayers-2.13.1/examples/kml/lines.kml"); instead ...
0
votes
0answers
52 views

Topology rules for a 3d network

I am currently writing a spec to which people may end up using to guide the digitization of a large 3d network (exterior pedestrian network + building interiors). In 2d network drawing, it seems to ...
1
vote
1answer
62 views

display 3D raster/vector in GRASS 7.0 from command line

I am using GRASS 7.0 on ubuntu linux 12.04 x64. I am working through some GRASS tutorials and am able to get a 3d raster to show up when I use the GUI. However, I cannot get the command line interface ...
0
votes
1answer
271 views

Plotting 3D Data using Python

I have a Uniform Grid of 1KMx1KM squares as a shapefile with population data in each grid in a specific column as an integer. I would like to extrude each polygon based on the population and export ...
2
votes
0answers
109 views

How to display images as cross sections in 3d

I want to display a base map and several vertical cross sections in 3D. The base map image is easy to rectify as a geotiff. How can I also display the cross sections? The cross sections are at ...
2
votes
2answers
758 views

Unable to load 'nviz' through GRASS

I am using QGIS 2.0.1-Dufouron on Windows 7. When I try to load nviz via GRASS, I get the message "Module nviz not found". Weirdly enough, I can load it via the toolbox and be able to 'run' it (it ...
0
votes
2answers
176 views

How could I insert a 3-D LineString into postgis table?

Using: CREATE TABLE trajectories( gid SERIAL PRIMARY KEY, vehID VARCHAR(10), state INTEGER, geom geometry(MULTILINESTRING) ) I get an error, for instance, after inserting: INSERT INTO ...
2
votes
0answers
91 views

Spatial Data with Unity

I was wondering if anyone has used spatial data as an input source to build 3D environments and interactive applications with Unity? The geospatial 3D world is very young, and some what immature, ...
1
vote
1answer
87 views

How to: script convertion from SRTM to 3D printable file?

Given a STRM3.tiff file as input. How to convert this STRM.tiff file into a 3D printable file ? which I may load into most 3D printers' sofwares. My objective is to print some terran, lunar, or ...
2
votes
0answers
86 views

Making a simple 3D map for browsers with my current geodata

I want to try to make a 3D map for a small area (10 square miles) with some housing, some roads and some vegetation on it. My geodata is as follows: Shapes with houses/roads/vegetation. LIDAR ...
2
votes
1answer
369 views

How to create and visualize groundwater plume models?

My water department has asked me about visualization of groundwater plume models. I have no idea where to start. All the links refer me to Cameo/Aloha but these are for Atmospheric modeling as far as ...
5
votes
3answers
3k views

3D visualisation with open source GIS software [closed]

I'm searching for QGIS (or other open source GIS software) tools that can analyse XYZ data. Also I'm interested to hear about if anyone have migrated to non commercial software regarding geological ...
0
votes
1answer
65 views

Raster to Surface

I have a raster and I have been asked to modify some pixel values in it. Is there an open source way to do this? I would guess that I have to create a 3d surface, then manipulate the surface, then ...
1
vote
2answers
195 views

how to build topology with 3d linestring in pgrouting

I have some 3d linestrings in postgis database, and I want to use pgrouting for calculating shortest path with Dijkstra. when I execute "select pgr_createTopology('route2', 0.000001, 'geo3d', 'id');" ...
1
vote
2answers
130 views

Digitizing map into three dimension?

Can somebody help me in making 3-dimensional map from 2-dimensional??some software reference or some tool which can do this. I know the height of the building and other aspects....
6
votes
1answer
659 views

How do I convert a .dxf to a .shp containing a field with height information in QGIS?

I received two .dxf for my project that represent my area of interest. One of them contains buildings, the other one terrain elevation. They both are 3D. I can convert them to shapefiles successfully ...
0
votes
2answers
111 views

How to bring 3D object into 3D application?

I'm doing some GIS as part of my college course and have just started to do some 3D modelling, I'm really a GIS novice, The module is short (only 5 lectures) My lecturer has said that it is possible ...
1
vote
1answer
330 views

3D Polygon Layer Stack with QGIS

I was curious if there is a way, or plugin to visualize a 3D polygon layer stack in QGIS (or another open source package). I have looked at NViz, but it only seems to work for rasters. I have a ...
8
votes
4answers
2k views

How to view LiDAR data from a web browser?

I am looking to host lidar data on my own server and give clients the ability to view that data through a web browser as a 3D point cloud (file would be in .las format or equivalent), possibly with ...
1
vote
0answers
66 views

Split 3D line feature at vertices based on slope change

I've already asked a question about this subject, but now I think I'm almost getting to the point. I have to split roads in ramps to calculate LS factor (RUSLE - soil erosion) These are the steps ...
4
votes
2answers
686 views

Using Calculate Field (Data Management) tool to calculate 3D Length in ArcGIS 10.1

I'm relatively new to the world of model builder and scripting, so it's likely there is a very simple solution to the question I've been trying to figure out. I'm trying to create a tool that takes ...
2
votes
2answers
298 views

How to accurately place geographic object into photo?

My task is to create before/after photo visualization of a wind turbine which is planned to build. A photo is taken from a point of known coordinates, and coordinates of a turbine are also known. How ...
3
votes
2answers
632 views

Is it possible to give 2d contours a Z-height from their attribute table in QGIS? (Or ArcGIS?)

I have a contour data file downloaded from UK Ordnance Survey, which gives 2d contours of an area in gml format (also supplied in .shp format) with the heights of each contour attached to the ...
0
votes
2answers
53 views

ShapeFile with Z Co-ordinates

I have 3 shapefiles, two of them wihtout the Z Co-ordinates elevation but 1 of them has a Z co-ordinate elevation. I can load two ShapeFiles into my SQL Server Database which does not have Z ...
2
votes
0answers
92 views

How can I create planar slices of a 3D object to quantify voids?

We are trying to quantify the void space in a 3D object, very similar to measuring the holes in cube of swiss cheese. I need to measure cross sectional areas and study the shape of the voids and we ...
-1
votes
1answer
534 views

How to convert 2D Map to Flat map like in google? [duplicate]

My requirement is shown below by maps. Map 1--My Map Map 2--I required I am using GeoServer v2.2(for publishing the map) and OpenLayers v2.11(to display the map). According to my client ...
0
votes
1answer
137 views

create POV-Ray image from DEM-file in grass

I am working on r.out.pov Tool of grass 6.4 creating a POV-ray(beautiful 3D) image from an elevation raster. You can see this link for more information about 3D analysis of GRASS. r.out.pov manual ...
3
votes
2answers
320 views

Is there a world projection that looks like a 3D globe?

I would like to try and show data such that it appears as if it was on google earth. For example, in this case, the view of the earth is circular-like and the data shown curves around. Are there any ...