3D is an object that has three dimensions.

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6
votes
1answer
2k views

Features to 3D from 2D in QGIS

Is there a way to convert 2D features to "3D" features in QGIS? I know there is a way to do this in ArcMap by using an attribute value in the attribute table, but I am looking to do this with ...
3
votes
0answers
20 views

How to set up a base station without known coordinates

I am new to surveying, but need to set up a Topcon controller with Pocket 3-D to run 2 receivers and a grader running off the base receiver for my new job. It sounds stupid, because I can't seem to ...
4
votes
2answers
621 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 ...
3
votes
0answers
19 views

How can ASTER elevation data be converted to a CAD model

I am trying to convert ASTER elevation data to a 3D CAD model using only opensource software. I have tried using different file formats but I have been unsuccessful. I use QGIS for my GIS work and ...
0
votes
1answer
23 views

What is the difference between `Area_2D`, `Area_3D`, and `Volume` in surface volume calculation? [duplicate]

I want to know the meaning of output text files of surface volume dialog box. For example, the file contains headers and numbers as below: Dataset, Plane_Height, Reference, Z_Factor, Area_2D, ...
1
vote
2answers
407 views

Importing MaxSea 3D Database to PostGIS

I am currently working on a project, where I combine several MaxSea 3D databases, which contain depth measurements made by the echosounder onboard on a ship. The idea is to combine these databases to ...
3
votes
1answer
457 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 ...
6
votes
4answers
2k views

Is it possible to create 3D dxf with OGR?

Does anyone know if it's possible to create a 3D dxf with OGR. I would like to assign our contour lines a z value and export them to dxf for some cad work. PS I know FME can do this, however I would ...
2
votes
1answer
205 views

Creating 3D terrain from point data in PostgreSQL?

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 ...
1
vote
1answer
222 views

Polyline ZM: automatic vertex height errors correction

Paolo I've got many rivers (polylines ZM) with a lot of height errors in Polylines 'vertices. Vertices' Z errors are not all equal in height (i.e. they are not all at zero height). I must create a TIN ...
2
votes
1answer
139 views

iPhone app to record 3D location information

Does anyone know of an app that would run on an iPhone or iTouch that would record the X,Y and Z information from an external GPS? I am using a Dual XGPS150 Bluetooth receiver. The GPS will record ...
0
votes
2answers
96 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 ...
6
votes
2answers
178 views

How to sample a 3D raster along a 3D path (or 4D raster along 4D path)?

I have a 3d raster dataset of atmospheric variables (lat x lon x altitude). I would like to sample this raster dataset along a 3d path. Any idea how I can achieve this, preferable with qgis or ...
3
votes
0answers
31 views

Questions about SRTM , .hgt format and the sea level/coastline

What a nice place here ! The questions/answers system is very elegant. I have read and get some useful informations allowing me to write a little .hgt reader... I am working on C.G.I and create 3d ...
0
votes
0answers
8 views

how to use the overview control of openlayers in other platform like skyline or others?

As the title said,is there a possible way to use the overview control of openlayers in other platform like skyline or citymaker or other 3Dplatform? What i need now is that i want to make an overview ...
1
vote
1answer
22 views

Unsplitting Zpolylines without flattening vertical line segments?

Trying to figure out how to fully keep vertical line segments when using Dissolve/unspit lines... The first image shows the original Zlines in Arcscene The second image is the result of a Dissolve ...
1
vote
1answer
25 views

3D rubber sheeting using ground control points

I have 3d lines that I would like to rubber sheet or rectify in 3D (including z rectification). I used ogr2ogr with -gcp, however all the vertex of a polyline were set to a single elevation, and since ...
0
votes
1answer
135 views

What KML features are suitable to display 3D atmospheric density data using Google Earth?

I wish to use Google Earth to visualise and explore 3D atmospheric density data. In my case it is ionospheric electron density, which is a niche area, but I can imagine this might have been done by ...
3
votes
1answer
2k views

Convert 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 ...
3
votes
0answers
28 views

How do I map points on a 2D map to a 3D illustration of the same area? [duplicate]

I'm looking for advice on how to build an algorithm that maps any point on a map to a point on another map, interpolating where needed. Let me better clarify with an example of what I concretely ...
1
vote
0answers
50 views

Calculating surface and lines in 3D projection in R

For my internship research I am trying to compare the surfacearea and length of geometric shapes and lines in one coordinate system to another. I have a SpatialPolygonDataFrame in the European equal ...
2
votes
1answer
23 views

3D Bulk Modelling tools in GIS

I work in an Architectural practice concentrating on large scale urban planning and Urban Design Schemes. Our current software is not really geared for this sort of work. We need to be able to ...
1
vote
1answer
177 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.
5
votes
3answers
759 views

How to drape a simple jpeg image over dem of some area?

How can we drape a simple jpeg image which doesnot have any geo referencing information over the digital elevation model in order to visualize it in 3D in QGIS?
2
votes
1answer
36 views

SDO_Inside equivalent in PostGIS for 3D objects

I am looking for a solution for querying a point whether it is located inside a 3D object or not. If the point is located on the surface of 3D, I could use ST_3DIntersects or ST_3DIntersection. But, ...
2
votes
0answers
62 views

3D visualization of terrain data and orthophoto using GRASS NVIZ via QGIS

How can I make 3D visualization of terrain data and orthophoto using GRASS NVIZ via QGIS? I am quite new with GRASS. I have only managed to get a 3D view of the terrain so far.
1
vote
1answer
48 views

How to increase the resolution of a 3D image in QGIS GRASS NVIZ

I'm trying to display 3D data in NVIZ within QGIS, but the result appears very low resolution in comparison to the same data in ArcScene. Any ideas as to how to improve the quality would be greatly ...
3
votes
1answer
77 views

How to extract DEM (Digital Elevation Model) from 3D model

How can I extract a Digital Elevation Model from a 3D model of a building, made with SketchUp, using Blender,qgis or any other software?
5
votes
4answers
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 area ...
0
votes
2answers
132 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
2answers
524 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 ...
15
votes
6answers
1k 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 ...
0
votes
1answer
147 views

PostGIS Column has Z dimension but geometry does not

I am able to create a geomtry column for 3d multiline using this: CREATE TABLE trajectories ( gid serial NOT NULL, vehid character varying(10), state integer, geom ...
0
votes
1answer
84 views

Z value (height,altitude) from 3D multipoint shapefile in QGIS

Is there a way to get Z value/height/altitude from 3D multipoint shapefile in QGIS? All I found is way through SpatiaLite or PostGIS as explained here: ...
1
vote
1answer
29 views

Local Coordinate System

I am currently evaluating the use of PostGIS (version 2.0) for: a project that will store 3D coordinates (x, y, z) data the data will have it's own local coordinate system which does not correspond ...
1
vote
1answer
73 views

Visualization of 3D GIS daten with 3D glasses

A colleague of mine wants to inspect 3D aerial photos in 3D with 3d glasses. He thinks he just needs the right 3d Graphics card and monitor with more Ghz - something along the lines of nvidia 3d ...
6
votes
5answers
925 views

Open Source Stereo Compilation Software

I work in a Geography Department at a small university and we are looking at putting in a 3D Stereo Compilation systems. We have been looking at Stereo Analyst, PurView and Dat/em, but I was ...
1
vote
0answers
45 views

Buildings missing texture in 3d web scene exported from ArcScene

A random sampling of buildings are missing textures. The models were made in Sketchup 8 and exported to COLLADA, then dropped in ArcScene. All of the textures are .jpg files. The models look fine in ...
1
vote
2answers
71 views

Software to detect intersections (within a tolerance) between 3d polylines

Is there any way to detect intersections (within a tolerance) for a 3d set of polylines? ArcGIS Topology Check seems to project everything into 2d (x-y plane) before checking, so shows a lot of false ...
8
votes
4answers
1k 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 ...
0
votes
1answer
52 views

which Coordinate system should I use for 3D analysis?

I am creating 3D surface below the earth's surface using ArcGIS and then I need to find distances to the plane from the surface. Which coordinate system shall I use? 3D interfaces like IProximity3D ...
18
votes
3answers
5k 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 ...
0
votes
1answer
45 views

Use Microstation wireframe model for OpenStreepMap

I've got an entire city in Microstation DGN format. I'm able to convert it into Google Earth (KML), DXF, SVG and other formats, and then in .osm with ogr2osm. However, the 3D model is build entirely ...
9
votes
3answers
992 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 ...
0
votes
1answer
194 views

3D Raster's and Geosoft Montaj/Target, Leapfrog, GoCAD [closed]

I'm trying to figure out what the best format to serve 3D images inside our company. Specifically georeferenced Tiff's that have been placed in 3d space with Geosoft Montaj. We use ArcMAP ...
3
votes
1answer
57 views

Is extrusion of a line (which is curved) into a plane at a certain angle possible in ArcGIS?

I have a polyline shape file which is a fault trace on earth's surface. I want to extrude this into a 3-D plane at a certain angle (which is dip angle of the fault). However, the extruded plane ...
0
votes
0answers
12 views

How to create surface by 3d building with different vertices [duplicate]

How to create surface by 3d building with different vertices(slope roof)? For example, in ArcGIS software. In other words how to interpolate this roof.
1
vote
0answers
20 views

How can I filter a MultiPoint Z / xyz points against a 2d polygon [duplicate]

I would like to filter point data from LIDAR scans (3d) by parcel plot lines (2d). I began with loading the lidar data into microsoft sql and performing a STIntersects between the MultiPoint and the ...
5
votes
6answers
2k 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 ...
0
votes
1answer
36 views

GRASS GIS v.in.ply

I'm trying to import a .ply file from MeshLab 1.33 into GRASS GIS 7.0 using v.in.ply addon, but I get the error message: ERROR: List index must be integer, is uchar This appears to be referring to ...