3D is an object that has three dimensions.

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2
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0answers
698 views

Simulate flood to assess Asset inundation footprints

I am trying to evaluate a number of flood gauges to assess at what levels of river height different flood risks would need to be issued. The gauges are currently set to warn of flood a couple of ...
7
votes
1answer
177 views

How can I calculate Moran's I in 3D?

This may be a question to post on a GIS forum, but I was wondering if among the spatial data experts here, someone could help me calculate the extension of Moran's I to 3D? Our data is about 3D ...
1
vote
0answers
112 views

Cesium 3D Map help

I am new to cesium and I want to display 3d shapefile using cesium.Conversion of shapefile in czml and display into cesium in main hurdle.
0
votes
0answers
98 views

Generate 3D grid in ArcGIS

I have DEM layer which I am vieving in ArcScene and project the z index to view actual 3D view of the DEM surface.Now i want the grid surrounding this DEM something like Fish net but a 3D having grid ...
0
votes
0answers
90 views

Does the Calculation of Spatial Weights Matrix in ArcGIS take into account 3D?

This question is about Spatial Weights Matrix in ArcGIS. Does it take into account 3D or not? I want to calculate Spatial Weights Matrix with SPACE_TIME_WINDOW. Anton
1
vote
1answer
135 views

Software program (or spreadsheet calculations) to find Borehole Deviation?

I was given a bunch of surveyed borehole data (azimuth, depth, dip, geology, etc) and am required to calculate a deviation variable. Besides querying the data and averaging the surveyed borehole ...
5
votes
2answers
2k views

Converting KMZ/KML to SHP (3D objects)

I have 3D buildings in .kmz file. I can see them in Google Earth, but I cannot import them to ArcGIS. What I've tried until now: I saved it as a .kml file in GoogleEarth and then try to convert the ...
0
votes
0answers
147 views

What is the easiest way to calculate borehole deviation?

Does anyone know if there was a program or specific method (calculations) in order to create a deviation value based on querying specific geological and drilling variables?
1
vote
0answers
23 views

System Requirements for 3d GIS & 3d Modelling [duplicate]

I'm looking for system (hardwares) required for view, edit & analyse 3d GIS & modelling data. And what is the decent monitor size should be ? single/Dual screens ? Modern systems comes with ...
1
vote
1answer
153 views

Any GIS program with GPX support and free hand selection tool?

I'm looking for GIS program that has good support for KML/KMZ or GPX route files and also has free hand selection tool. Right now I use 3dem and it would be perfect for my needs if only it had that ...
1
vote
1answer
505 views

How to create a 3D shapefile from a raster?

I´m trying to make a 3D shapefile from a raster feature but not working. Tried already to run the command in OSGeo4W but nothing happen. I'm using the Qgis 1.8.0 Lisboa. The purpose is to get a final ...
12
votes
2answers
5k views

How can I sucessfully import 3D surface and features from ArcGIS 10 into Sketchup 8?

What are the steps required to successfully export an entire 3D model (composed of TIN surfaces, 3D polygons, 3D polylines and 3D points) from ArcGIS 10 to Sketchup 8? Preferably, I would like the ...
1
vote
1answer
977 views

DEM to STL (3D Printer Format)

I have a DEM in ArcGIS 10.1 that I would like to get into STL format for a 3D printer. Does anyone know some software that will allow me to make this conversion? I have to use the STL format because ...
6
votes
0answers
332 views

Indoor positioning system hardware [closed]

I'm a software developer, dont know much about the hardware specifications and dont know where to start. (Even not sure is that the right stackexchange I should ask this question.) So, I want to know ...
1
vote
1answer
518 views

VRML export issue ArcScene

when I try to export simple Tins (or documents which contain Tins) from my ArcScene to .wrl the export fails. Please see my example: I have the following table (xlsx): X Y hoehe 28 -2 0 -2 ...
1
vote
0answers
56 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 ...
4
votes
3answers
314 views

Why aren't 3D Globes used as the basis of GIS systems?

Maps have been around for thousands of years and have been widely accepted as the means of representing spatial information. We all know about several map projections,each with their merits and ...
17
votes
3answers
531 views

How much Water on Earth(USGS) : A Wrong Map representation?

I happened to read a USGS article, How much water is there on, in, and above the Earth? showing a representation of all the water(which includes water from Oceans, Seas,Bays,Ice caps, Glaciers, ...
2
votes
1answer
138 views

Making a subsurface TIN model

I had been very glad if any of you have time to help me. I am a student and currently writing a thesis. In this paper I will create a 3D model of a glacier, where I will show the internal structures ...
2
votes
1answer
105 views

3D Barriers, ArcGIS Network Analyst

I am trying to implement 3D barriers from a feature class into a network using a model, but I can't seem to get the resulting barrier to appear on the proper three dimensional plane. The feature class ...
4
votes
2answers
369 views

how to retrieve average building height in urban areas?

I am looking for a way to collect data on the height profile of some cities over time. I don't need to produce a detailed 3D reconstruction of cities, nor do I need to detect and measure individual ...
2
votes
2answers
305 views

Options for displaying 3D data using ESRI web APIs [duplicate]

I've been looking through the documentation of the various ESRI web APIs to see if there is any support for displaying 3D data, but haven't found anything useful. Is there any support for this - or do ...
1
vote
1answer
232 views

Why ignores Google Earth the gx:altitudeOffset in KML files?

I am currently writing software that creates 3D polylines and outputs these in KML format. According to the official documentation it is possible to define an altitude offset via gx:altitudeOffset to ...
2
votes
1answer
157 views

Create an animation that rotates around an central axis

I am looking to create an animation of a 3D model. I want the model to be the central object in the animation, so rotating around the model, always looking at the model. I am wondering what is the ...
4
votes
1answer
383 views

What do I need to create 3D model of real terrain?

I'd like to create 3D model of some real terrain (to be exact it's about some real roads and only as much as 80m to 100m of roadside - 40m to 50m of each side). As I don't have access to highly ...
1
vote
0answers
121 views

create a map from scratch

I am a newbie in GIS, so be indulgent if my question sounds stupid! I am working on a mapping project for scuba diving sites, and I need to create 3d maps viewable by users on android tablets, iOS, ...
5
votes
1answer
210 views

How do I georeference a ski map?

I have a map of a mountainous landscape, http://skimap.org/data/989/60/1218033025.jpg. It contains a number of known points, the lat-longs of which can be easily found out using google maps. I wish ...
4
votes
1answer
275 views

How can I Enable Google Earth 3D features in QGIS?

I want to ask if there is any plugin or any other way where I can use Google Earth features in QGIS. When I'm saying Google Earth features I mean to be able to see roads, towns, etc and to be able to ...
7
votes
2answers
197 views

How do you treat partial 3d features in PostGIS?

We have features from survey data that contain partial 3d information. The most common example would be a 2D LineString representing a road, that contains elevation information in certain points ...
3
votes
1answer
775 views

Can I create a 3D model in QGIS or is there some model for 3D city model?

Can I create a 3D model in QGIS or is there some model for 3D city models? I need these information for my project.
6
votes
5answers
485 views

What are the main fields of applications of 3D GIS?

I'm doing a scholary research on 3D GIS but i have some problems in finding where they are used. Does anyone know of any real life examples where 3D GIS has been adopted?
2
votes
1answer
240 views

NEAR_3D function without the need for 3D Analyst, Arcpy

I am looking for a python script which would do similar as the ArcGIS 3D Analyst NEAR_3D function. Basically I would like to programatically in python find nearest points of one point feature class ...
2
votes
1answer
187 views

3d terrain from data in postgres

I am quite new to arcgis and I would like to create a 3d terrain. Now I have a postgresSQL table containing a list of points with their geometry data and the Z value for each point. What I would ...
4
votes
0answers
256 views

How to convert a set of points to a solid object?

I have a data generated as the output of some numerical processes. I need them to be converted into 3D solid objects (as CAD solid format) to make them importable for some particular numerical ...
8
votes
3answers
559 views

How to properly Drape vectors over a DEM?

I have a DEM of my study area, and the streams in it. Whenever I add both to ArcScene, and drape the vectors over the DEM, some of the vectors disappear from over the surface, and are visible under ...
4
votes
1answer
346 views

Is there a way to visualize a 3D full/solid body (like a full layer) in ArcScene

I am trying to present layer and simulated layer (how it decreased in a year, for example) in ArcScene, but showing two layers one on each other with a slight difference (like max 30 cm.) does not ...
6
votes
4answers
668 views

Open Source Stereo Compilation Software

I work in a Geography Department at a small university and we are looking at putting in 3D Stereo Compilation systems. We have been looking at Stereo Analyst, PurView and Dat/em, but I was wondering ...
2
votes
1answer
157 views

Is it possible to rectify an aerial photo with known control points in 3d, in QGIS?

Bonjour, Peut-on avec Quantum GIS redresser une photo aérienne avec des points caractéristiques connus en 3D (XYZ) ? -- Translation: Hello, Is it possible to rectify an aerial photo with known ...
2
votes
1answer
380 views

How to find the closest Edge from a Line

Currently I'm working on a basic 3D model viewer in MATLAB, which can import .OBJ files (modeled in e.g. Blender). The purpose of this viewer is to test different subdivision schemes (like ...
5
votes
3answers
2k views

3D subsurface modelling

I am a student and initiating a thesis project for MS specialize degree in geophysics... I am working on tectono - stratigraphy of some area and want to do the 3D subsurface modelling of the same ...
7
votes
4answers
445 views

Which ArcGIS product gives full 3D terrain navigation and (flight) simulation?

I looked at the ArcGIS ESRI website and find that 100% of the screenshots depicts a 2D map with at most relief shading. Is there any product ArcGIS or not that gives real 3D terrain visualisation ...
31
votes
4answers
6k views

Migrate from ArcGIS to QGIS?

This is my first visit to and first question on this site, I hope this newbie question is suitable here. Our lab has about 10 projects in ArcGIS 9 (a couple are made in ArcGIS 10) that includes the ...
26
votes
1answer
6k views

How to find the center of geometry of an object?

Well it might be a simple question. Given a set of 2D or 3D points, the question is: How to find the center of geometry of an object? According to the following figure, the center of geometry ...
6
votes
1answer
191 views

What's a robust strategy for displaying 3D map data for navigation?

3D map data, specifically the kind you see on GPS units, or more recently on smart phones, almost always features a 'HUD' like view, which I'm trying to implement in an application of mine. I have ...
2
votes
0answers
409 views

Visualization libraries for rendering 3D GIS world on iOS/Android

Are there any good 3D libraries/frameworks for rendering 3D worlds in geospatial coordinates on mobile platforms? Use case: I have some known 3D geospatial features (eg. buildings) with their ...
5
votes
1answer
456 views

How do I cast shadows from 3D Objects in ArcScene?

I would like to cast shadows from my 3D objects in ArcScene onto the surface and other objects. (Much like I can in SketchUp). Is it possible? If so how?
3
votes
1answer
1k views

How to draw a cross section in QGIS

Given my enthusiasm for QGIS, does anyone have a simple workflow for drawing cross sections of earth features? My thing is that QGIS is being used to present the plan view, but we have a little ...
1
vote
0answers
131 views

Data source for 3D buildings (germany)

I'm searching for a data base or webservice, that provides buildings at a level of detail (LOD) of cuboid (length,width,height) or roof, corners, etc or better. The area should cover germany. ...
3
votes
2answers
260 views

Invoke PostGIS functions outside of the database? Need to force 3D in GeoDjango

I'm looking to ensure that all geometries saved to the database are three-dimensional. It's easy enough to do with a call to the database, select ST_Force_3D( ST_GeomFromText( blah blah ) ) ...but ...
2
votes
1answer
271 views

Conversion of ASTER GDEM data for CFD Analysis

I need to do a computational fluid dynamics (CFD) analysis of wind over a large area of land. I have obtained the necessary tiles from the ASTER GDEM data set (in .tif format) and was wondering how I ...