3D is an object that has three dimensions.
29
votes
4answers
4k 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 ...
25
votes
8answers
1k views
When is a 3D Visualisation in GIS Useful?
I can currently only think of two cases:
to visualise potential changes in a landscape, such as the effect of adding windfarms, or the addition of a new building to an urban area. However both these ...
21
votes
1answer
2k 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 ...
19
votes
3answers
2k 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) ...
17
votes
3answers
382 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, ...
16
votes
3answers
2k views
Which software to use to create professional fly-over/ fly-through animations?
I will need to create a high quality fly-over animation which penetrates the surfaces and reveals subsurface geology. The intended use is for demonstrations, presentations and a company website so it ...
14
votes
5answers
1k views
What are my options for 3D web Maps?
I wish to have a Online 3D Map, which would show my Data, i.e both Raster and Vector, draped on a DEM that I have.
Due to the requirements of using my own DEM & Raster data, Google Earth API is ...
13
votes
3answers
859 views
Visualization of 3D shapefiles with Mapserver and Postgis
I'm wondering is there a way to visualize 3d data with mapserver? 3D .shp files are in postgis database, and I already connected mapserver to database, but with simple layer in mapfile.
12
votes
3answers
812 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 ...
12
votes
2answers
3k 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 ...
11
votes
1answer
392 views
Displaying cross-sections on a web page
I'm looking for inspiration and possible tools on how to display cross-sections on a (dynamic) webpage. More specifically I have to show on these cross-sections how underground pipelines are located ...
11
votes
4answers
491 views
What are some 3D visualisation tools that successfully work with GIS data?
There are a large number of 3d modelling tools available (both open and closed source). I would like to be able to:
Import GIS data into a 3d environment and retain georeferenceing.
Retain the ...
11
votes
2answers
260 views
Are there any 3D GIS which exploit consumer level 3D HDTVs?
My company is moving into a new building and we will be purchasing a 65" or greater HDTV for the conference room.
I am interested to know if there are "3D" GIS applications which currently exploit ...
10
votes
4answers
425 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 ...
10
votes
2answers
729 views
Which Windows GIS editors support the creation of 3D shapefiles besides ArcGIS with 3D Analyst?
I need to find and easy and affordable way to generate 3D linear shapefiles in Windows so one of our users can inspect our tool. We incorrectly assumed that he had 3D shapefile source data available ...
9
votes
4answers
368 views
How to represent floors in a building
Is there any way to represent floors in a building using GIS?
(Also, it's stupid that I have to use existing tags cos none suit my question so I had to choose one at random.)
9
votes
4answers
232 views
Is there a standardized or “most used” dummy Z value?
Creating and importing both 2D and 3D data, I have many times encountered the situation where I have no Z value for a coordinate set, that the value of a Z coordinate seems out of range (like -99, ...
9
votes
4answers
355 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 ...
9
votes
4answers
197 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 ...
9
votes
3answers
736 views
What software to use as an all-around solution for mining GIS?
My employer wants me to look into constructing geology maps, modeling 3D subsurface geological formations, producing geological cross sections and other mining related products from various drill hole ...
9
votes
2answers
626 views
How can I digitize features on an Y,Z plane in ArcGIS?
How can I geo-reference and digitize features on a Y,Z plane of a vertical cross-section in ArcGIS?
The surface coordinate system is NAD 83 UTM 15.
This is a simplified version of the question found ...
8
votes
3answers
199 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 ...
8
votes
1answer
1k views
PostGIS 3D in Action
I was wondering if there is a website that showcases Openlayers and PostGIS 3D in Action
7
votes
4answers
361 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 ...
7
votes
7answers
12k views
How can I create profile cross-sections in ArcGIS 10?
Because the default 'Profile Graph' tool was not sufficient, I wrote a custom VBA script that creates scaled and exaggerated profile cross-sections in ArcGIS but I need more features:
Visualize more ...
7
votes
2answers
1k views
Can I create, union and intersect 3D multipatch features using 3D Analyst extension (ArcGIS 10)?
I'm on ArcGIS 10. According to all the documentation I've read, 3D Analyst should be able to do what I am trying to get it to do, but I am running into problem after problem and I'm almost ready to ...
7
votes
2answers
357 views
DXF attribute to z value
We have been given a DXF that contains a Elevation attribute but we would like to generate a 3D DXF. I know I can generate a 3D dxf from a shapefile using:
ogr2ogr -f "DXF" out.dxf in.shp -zfield ...
7
votes
2answers
89 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 ...
7
votes
0answers
220 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 ...
6
votes
1answer
853 views
Is there are QGIS plugin to allow the 3d visualisation of geological borehole data similar to the functionality of Target for ArcGIS?
I'm very new to QGIS, I have started using it as my new company is not willing to pay for ArcGIS and Target at this stage so I'm hoping QGIS can substitute not just in the interim but for good.
What ...
6
votes
3answers
501 views
Does anyone know of a good unaffiliated review of Rockworks?
I've been struggling to find a good software package for drillhole data management, subsurface geology modelling, and visualization (both 2D and 3D): something that can also be used to produce ...
6
votes
3answers
246 views
Can anyone share their experience with SpaceNavigator 3D mouse?
I was wondering if any of you had a chance to use any of the 3Dconnexion products in GIS setting? What are your experiences?
Is something like SpaceNavigator worth investing into?
Update: ...
6
votes
2answers
801 views
Has (ESRI) TIN been superseded by Terrain Dataset?
I've had version 10 for a few months but it wasn't until today that I really tested the 3D Analyst extension. (Other then visualizing data)
I already noticed a lot of changes; a number of tools have ...
6
votes
1answer
154 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 ...
6
votes
1answer
238 views
Assign Z value to start & end of PostGIS line
I have a line table in my PostGIS database and a table with invert levels for the start and end of each line.
My goal is to create create 3D lines in my table, from my invert data. I know I can use ...
5
votes
4answers
364 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 ...
5
votes
2answers
633 views
How to visualize 3D model in ArcGIS?
I have hypsometric map/model of mountain which I get by contour lines with Z value. Can you explain how to visualize 3d model in ArcGIS? I need to get something like nviz command in GRASS.
5
votes
2answers
404 views
Is there a way to render 3D map tiles?
I am looking for a way to create map tiles from OSM data but I would like the resulting map tile images rendered at a 45 degree angle. Is there any way this can be done? I have never see such an ...
5
votes
2answers
688 views
How to Georeference 3D model or 3D buildings?
I am working on 3D project so i have to do georeference to 3D buildings which are created by 3D designer.Anyone Knows the solution.Please send me.
5
votes
5answers
310 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?
5
votes
1answer
233 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 ...
5
votes
1answer
115 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 ...
5
votes
2answers
196 views
3D snapping in open source platforms
I'm looking for tools and extensions in open source platforms (gvSIG, QGIS, uDig, etc) that allows 3D snapping.
In the last years, most of the projects my company is working on required the editing ...
5
votes
1answer
5k views
creating a dem from contours
I have a large set of contours that I received broken down into several different subsets. I have merged most of the subsets together creating a larger set of contours in three different files. I have ...
5
votes
2answers
613 views
How do you make 3d features from survey point data in arcGIS 9.3?
I have survey point data brought into ArcGIS using Survey Analyst Extension. I have created my 2D shapefiles of the cross-sections, thalwegs, and roadways but I can not get it to populate the zfield ...
5
votes
1answer
283 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?
5
votes
1answer
465 views
3D visualization for marine navigation
Is there anyone who has some experience or knowledge on 3D visualization and/or GIS softwares capable of displaying 3D bathymetric data and 3D ship model together? Nearly all GIS softwares work with ...
5
votes
1answer
463 views
How to mix polygon extrusion and different altitude modes in KML?
I want to create boxes by simply extruding polygons but with special "floors". I've been able to find several existing solutions for the extrusion problem. The remaining problem is that the "floor" of ...
5
votes
2answers
109 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
3answers
600 views
getting from a DEM to points that could be used for a TIN
I have a DEM, and would like to create a set of points that I can use to make a mesh for a 3d modeling program, such as Maya, Blender, or SketchUp. If I were to make a TIN from a DEM in ArcGIS, ArcGIS ...
