Questions related to GIS objects that have three dimensions.

learn more… | top users | synonyms

6
votes
6answers
5k 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 ...
1
vote
1answer
38 views

GRASS GIS 3D - Inconsistent number of attributes

I am trying to automate my 3D plotting of GRASS GIS 7 results, also to make them more consistent in size and view angles. So for m.nviz.image elevation_map=DEM -a mode=fine resolution_fine=1 ...
0
votes
2answers
464 views

How to add polygon height in QGIS or PostGIS?

Is there an easy way to set the height of polygons in QGIS or PostGIS? I am trying to visualize polygons by turning them into volumes (same shape at the base and roof, but with walls). I would then ...
6
votes
2answers
400 views

Clarification of the “25D” option in ogr2ogr

[EDIT: In my original post, I had received an error that was based on a typo, so I scrapped that part of the question, but left the questions that still apply.] In the ogr2ogr docs it says: -nlt ...
0
votes
1answer
162 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 ...
5
votes
2answers
341 views

Pictometry Accuracy and/or Alternative

I'm looking for some insights into the accuracy (x,y,z) of oblique imagery from Pictometry in terms of providing accurate measurements for property evaluation. Is the high cost of this product ...
1
vote
1answer
427 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 ...
2
votes
1answer
1k views

How to export a shapefile from ArcGIS 10 into Autodesk Ecotect?

I am trying to export a shapefile from ArcGIS 10 into Autodesk Ecotect Analysis 2011 for solar analysis. I have a shapefile with polygons, and the heights of buildings is stored in the attribute ...
1
vote
1answer
117 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 ...
1
vote
1answer
90 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
57 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 ...
0
votes
1answer
101 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
0answers
102 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
390 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 ...
16
votes
4answers
2k views

Are there any alternatives to ArcScene?

I think I've had it. I've been struggling to create polished scenes and flyover animations using the ESRI tools. SketchUp is great but it does not handle large datasets and most 3rd party models (3D ...
1
vote
1answer
109 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 ...
2
votes
2answers
701 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, ...
33
votes
4answers
14k views

How to find the minimum-area-rectangle for given points?

The following is another problem that I am working on it these days. As you see in the figure, (BTW, I tried to make it self-presenter) the question is: How to find the minimum-area-rectangle (MAR) ...
35
votes
4answers
8k views

How to migrate from ArcGIS for Desktop to QGIS?

Our lab has about 10 projects in ArcGIS 9 (a couple are made in ArcGIS 10) that includes the following in each: A georeferenced (WGS1984 geographical projection) raster seafloor image, representing ...
1
vote
0answers
77 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
265 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
135 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 ...
3
votes
2answers
376 views

GOCAD and SKUA 3D Models Online

I am looking to build a 3D Web Mapping Application using data/projects initially created within GOCAD and SKUA. We currently use ArcServer 10. Initial looking around online has suggested that I could ...
10
votes
4answers
1k 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
22 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 ...
0
votes
2answers
2k views

How to convert Shapefiles to 3D DXF?

I'm using QGIS version 1.8.0-Lisboa and I'm trying to convert a vector line file and it's not working. I right click on the layer>Save as>Autocad file>DXF. After that I try to open the output file in ...
2
votes
1answer
105 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 earth mapping with javascript or browser plugin

I am currently working to develop a web-based mapping application. A lot of the mapping tools such as google maps are 2d imagery. I know that google earth has a 3d browser plugin, but a requirement of ...
2
votes
2answers
304 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 ...
10
votes
5answers
812 views

Where can I find a high quality real globe of a decent size without axis?

I'm trying to find a physical globe of a high map quality that doesn't have any axis or bearings as the axis mounted on standard desk globes completely obscures the arctic regions. High-quality map ...
3
votes
2answers
4k views

KML (KMZ) generated from ArcGIS 10 open in Google Earth but fail to import into SketchUp 8

So i finally figured out how to import TIN surfaces from ArcGIS 10 into SketchUp 8. To fully replicate the functionality of the legacy ArcGIS SketchUp 6 Extension I would also like to be able to ...
0
votes
0answers
214 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 ...
2
votes
1answer
1k views

What is the best way to visualize subsurface drillhole and borehole geology data within ArcGIS?

I've heard some folks in mining are using Target for ArcGIS extension by Geosoft to visualize and analyze subsurface drillhole and borehole geology data within ArcGIS. Does anyone have experience ...
1
vote
1answer
104 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 ...
10
votes
5answers
6k views

How can a 3D model of a building be displayed in a web-browser?

I would like to try to show a proposed building in a web-browser such that the user can interact with it in a way similar to google maps streetview. Is it possible to do this, in any platform? I can ...
2
votes
0answers
140 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 ...
6
votes
2answers
374 views

Creating Anaglyphs from Nadir Images

Has anyone made an anaglyph photo from Nadir geospatial data? I have found some excellent examples of making anaglyphs in GIMP from digital photography. I would like to do a similar process with ...
5
votes
1answer
154 views

Why are z-values replaced with zero after in_memory use in Python?

My script takes separate 3D feature classes, calculates a field, appends to a target feature class, and then deletes the originals. This is a huge data processing task of over 4700 mass point feature ...
5
votes
6answers
2k views

Open source/free software for generating a 3D view of mapping?

Is there any software that will generate a 3D view given a DTM/height data and raster mapping, and output an image in a printable resolution? I am looking for something similar to what you'd find in a ...
8
votes
1answer
388 views

Is it possible to add photo-realistic clouds in ArcGlobe animations?

This question asked about the best software to produce professional fly-through animations, and included a link to a nice video of the Grand Canyon. That video includes photo-realistic clouds in the ...
5
votes
3answers
4k 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 ...
1
vote
1answer
110 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
117 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, ...
4
votes
2answers
610 views

What are alternatives to ArcGIS for Desktop and Google Earth for these requirements?

I currently have a python script that will take in data and output it as a KMZ file, which I then open in Google Earth on my desktop. The data has two views; a 3D polygon tower (clustered data) and ...
13
votes
6answers
3k views

Looking for free program, similar to 3D Analyst, to visualize tree stands in 3D

Heyho, I want to make a 3D stand visualization of trees in a specific area. I need something similar in functionality to ArcGIS 3D Analyst, but I don't have a license for that plugin anymore. The ...
2
votes
1answer
585 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 ...
0
votes
1answer
88 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
300 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');" ...
6
votes
1answer
909 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 ...
1
vote
2answers
173 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....