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Creating 3D model in QGIS?

Creating 3D model in QGIS?


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


QGIS 3.0 will support rendering of 3D models out of the box. Install the latest nightly build of QGIS using OSGEO4W or another installer for your platform.

  1. Add 3D Canvas from main menuView > New 3D Map View
  2. Add your 3D model as new layer
  3. In style panel, enable 3D renderer.

There is QGIS Globe. You'll need to run QGIS on Linux though (Source http://sourcepole.ch/the-state-of-qgis-globe).

To see QGIS Globe with PostGIS 3D in action check http://vimeo.com/54776907.


There is indeed a plugin based on a JavaScript library link here

This plugin will generate an html page where you will be able to pan in 3d


Integrated Application of BIM and GIS: An Overview ☆

With the concepts of Smart City attracting the industry, the method of managing spatial information has become a hot research topic. Relating to this topic, GIS and BIM are two critical technologies. Although the application of GIS has a long history and BIM has also developed for over 10 years, their integrated application starts a new direction and is still at the early exploration stage. To better understand this newly expanded field, we review previous works in the field from the perspective of research and relevant application platform. Based on that, directions of future research are discussed.


Creating 3D model in QGIS? - Geographic Information Systems

“A thousand roads lead men forever to Rome” Alain de Lille, 1175

All content © Roman Roads Research Association 2016, all rights reserved unless otherwise stated.

Technology, Mapping, Aerial Photos etc

Under its Open Data Strategy Defra and its agencies are increasing the range of the data that they provide. As part of this strategy, LiDAR data is available for England free of charge, as a series of geo- referenced tiles. For archaeological purposes, DTM (digital terrain model) is generally most useful, as it removes buildings and vegetation.You will need suitable software to process the data, examples of which are given below.

Aavailable as a Historic LiDAR archive, or a LiDAR composite dataset, Natural Resources Wales have also made their LiDAR data freely available

Without question the world’s leading Open source GIS software package - and it’s free! It can even be used to process point cloud data such as LiDAR, but many people prefer to process elsewhere then import the results

IMPORTANT NOTE: At the time of writing (Jan. 2017)the Scottish Government has no plans to make their LiDAR data available to the public.

The National Library of Scotland have digitised a whole host of old maps, including town plans, estate maps, and military maps.

Various series of OS and Bartholomew maps are available, although most important for our purposes are the 6 inch to the mile Ordnance Survey maps, not just of Scotland, but also of England and Wales. Digitisation of the entire 25inch to the mile map series is in progress. There are two viewing options for the 6 inch, either as a seamless zoomable layer, or as individual sheets

The Ordnance Survey’s online version of its well known paper maps. This is unfortunately now a subscription only service. If you would like to use OS maps online for free, the best alternative is Bing, from Microsoft (see below).

Ordnance Survey offer a range of quality assured, regularly updated products that enable you to analyse your data, build interactive websites and create stunning visuals – and they're all free. Products like OS Terrain 50, a 50m digital gridded terrain model are excellent for creating 3D terrain maps in another product such as QGIS

Everyone is familiar with Google Maps, however hardly anyone seems to be aware that Microsoft’s alternative has OS mapping (to 1:25000) in the UK for free! In the drop- down box in the top right corner, Ordnance Survey is the fifth one down and easy to miss.

FugroViewerTM is a robust, easy- to- use freeware designed to help users make the most of their geospatial data.

A highly unlikely source of processed LiDAR (DSM) data for England and Wales. The Environment Agency data has been used, so coverage is only about 50%, and of course there’s a hole where Scotland should be. The interface is easy to use, and it’s actually a very good starting point before going to the trouble of processing data yourself.

This free software can be used to create 3D models from pre- built digital elevation models, such as can be built in RVT (below)

This very useful free software, developed by the Institute of Anthropological and Spatial Studies (IAPŠ) at the Research Centre of the Slovenian Academy of Sciences and Arts (ZRC SAZU), allows the creation of a mosaic from multiple data tiles, which can then be processed in a variety of ways. The software does not have a viewer, so you can’t see the results as you go, but with the right hardware it is capable of working with very large chunks of data.

The National Collection of Aerial Photography, based in Edinburgh, holds over 26 million aerial photos of places across the world. They are all viewable online, and coverage of Britain is reasonably good

The aerofilms collection of 96,000 high resolution images, all available online

The Cambridge University Collection of Aerial Photography (CUCAP) is the result of airborne survey campaigns which were started in 1947 by the pioneering JK St Joseph. Since then the collection has grown to almost 500,000 images of obliques and verticals in black and white, colour and infra- red. Virtually the whole of Britain has been covered, with the obliques depicting a wide variety of landscapes and features and the verticals being of survey quality, can be used in mapping projects. Not all images are yet available online, but an increasingly valuable resource.

Sabre is the acronym of the Society for All British & Irish Road Enthusiasts. They have a useful mapping page which gives overlays of various 20 th century maps including Bartholomew and OS.

The MAGIC website provides authoritative geographic information about the natural environment from across government. The information covers rural, urban, coastal and marine environments across Great Britain. It is presented in an interactive map which can be explored using various mapping tools that are included. Natural England manages the service.


ESRI ArcGIS Web Based Tools

Esri ArcGIS has many different and popular web-based applications available to Tufts University students, faculty and staff through our Tufts Organization Account for your mapping, spatial analysis and storytelling needs.

The list to the right are some of the most popular ESRI ArcGIS web-based tools used at Tufts University. To see a full list of available ESRI products, visit: https://www.esri.com/en-us/arcgis/products/index


Introductory GIS with QGIS

This summer we’re offering our first GIS Micro-credential course. The objective of this course is to provide professionals in fields that use geospatial data an opportunity to gain the hands-on experience required in GIS. This first course focuses on the basics and it will be a stackable micro-credential leading towards higher qualification. Those taking the course will learn in a hands-on environment implementing geospatial solutions using real-world scenarios. Upon completion, participants will be able to conduct basic spatial analysis using GIS.

This one-week course will focus on introducing participants to the Quantum GIS (QGIS) platform. QGIS is a free and open-source cross-platform desktop geographic information system (GIS) application. Focus for the course will start with data structures, data collection, and fundamental GIS functions. Laboratory work will involve techniques used to analyze spatial data in GIS software.

Participants will learn how to:

  • Work with complex mapping software
  • Take a 3D world and display it as a 2D map (Projections)
  • Create map layouts
  • Create spatial data
  • Organize spatial data
  • Analyze spatial data
  • Perform spatial and aspatial queries
  • Perform constraints analysis to find the ideal location to build a business, site a landfill, where to buy a home, etc
  • Join spatial data to tables or other spatial layers
  • Work with raster data such as Digital Elevation Models (DEM), or interpolated surfaces (rainfall, temperature, etc)

When: July 12 - 16, 2021, 9 a.m. - 12 p.m. and 1 - 4 p.m.

Where: In line with best safety practices during the COIVD-19 pandemic, this will be held virtually.


Recap

Modern GIS software has automated coordinate transformations, but it is unfortunately too permissive, especially concerning raster data. The worst thing is that errors are often difficult to perceive and even less so to understand. Your hillshade is a little too shady when you change the sun angle: it must be the QGIS algorithm, right?

If you are a regular GIS user, I’m challenging you: how many WGS 84 hillshades are sitting on your computer? Did you take pain to re-evaluate your data accuracy after re-projection?

Geographic projections will continue to bother us and trusting in GIS automation is definitely not the way to go. Quite often, things “work” just because the software is too forgiving. Conversely, some other algorithms “do not work” (such as my Viewshed analysis module) because they are less permissive, not because they’re broken. So, as soon as you download your WGS 84 data, re-project it and delete WGS84 files from your computer, your GIS life will be easier…


Загрузить для всех доступных архитектур
Архитектура Версия Размер пакета В установленном виде Файлы
alpha (неофициальный перенос) 2.18.28+dfsg-2 10 491,4 Кб19 197,0 Кб [список файлов]
amd64 3.10.14+dfsg-1 6 906,1 Кб10 224,0 Кб [список файлов]
arm64 3.10.14+dfsg-1 6 840,5 Кб10 152,0 Кб [список файлов]
armel 3.10.14+dfsg-1 6 852,1 Кб10 067,0 Кб [список файлов]
armhf 3.10.14+dfsg-1 6 862,8 Кб9 695,0 Кб [список файлов]
hppa (неофициальный перенос) 3.10.14+dfsg-1 6 935,9 Кб10 591,0 Кб [список файлов]
i386 3.10.14+dfsg-1 6 944,1 Кб10 163,0 Кб [список файлов]
m68k (неофициальный перенос) 3.10.5+dfsg-2+b1 6 928,6 Кб10 604,0 Кб [список файлов]
mips64el 3.10.14+dfsg-1 6 893,6 Кб10 796,0 Кб [список файлов]
mipsel 3.10.14+dfsg-1 6 856,3 Кб10 401,0 Кб [список файлов]
ppc64 (неофициальный перенос) 3.10.14+dfsg-1 6 899,4 Кб11 020,0 Кб [список файлов]
ppc64el 3.10.14+dfsg-1 6 891,5 Кб10 825,0 Кб [список файлов]
riscv64 (неофициальный перенос) 3.10.14+dfsg-1 6 863,4 Кб9 918,0 Кб [список файлов]
s390x 3.10.14+dfsg-1 6 843,3 Кб10 236,0 Кб [список файлов]
sparc64 (неофициальный перенос) 2.14.19+dfsg-1 4 571,3 Кб11 854,0 Кб [список файлов]
x32 (неофициальный перенос) 3.10.10+dfsg-2 6 900,8 Кб10 012,0 Кб [список файлов]

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River modeling

3. HEC-RAS

The numerical model HEC-RAS is developed by the U.S. Army Corps of Engineers. This model uses the gradient and topography to evaluate the flow depth, velocities and flooded zones. It is also useful to calculate sediment transport and water temperature.

River scheme in HECRAS with cross sections.

4. iRIC

iRIC (International River Interface Cooperative) is a software developed with the purpose of offering a complete simulation environment of the riverbed and its results can be exported and used to analyze, mitigate and prevent disasters, through the visualization of the results of the river simulation.

Visualization of flood related to a river modelled in iRIC


Visualisations of large datasets

The XL Catlin Seaview Survey webpage plots 860 reef survey locations onto an interactive map.

Users of the page can select the map pins (data points), download datasets and discover more about the research and reef conservation.

The open access datasets are stored in UQ eSpace. The Digital Researcher Lab supported the UQ Global Change Institute in the design and presentation of the visualisation.

View case studies using the R software to process, visualise and analyse linguistic data.

The site is maintained by the School of Languages and Cultures at the University.

The Digital Researcher Lab consulted on R software.


Is GIS data Vector or Raster?

GIS can be both vector and raster. Vector data will be familiar to CAD users. Vector data is mathematical, making it infinitely scalable and is represented as points, lines, surfaces, etc.

Raster data has a finite size or resolution, it can take the form of images, such as satellite photography.

Example of GIS in use. First, publicly available GIS data was imported and arranged in QGIS, then exported into DXF or raster and imported into BricsCAD.