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A major update is on the way; many bug fixes, fundamentally more robust network construction and cleaning tools, new features, etc. To get an impression of some new features have a look at our latest paper on the subject:
A major update is on the way; many bug fixes, fundamentally more robust network construction and cleaning tools, new features, etc. To get an impression of some new features have a look at our latest paper on the subject:
Essential Means for Urban Computing: Specification of Web-Based Computing Platforms for Urban Planning, a Hitchhiker’s Guide
Essential Means for Urban Computing: Specification of Web-Based Computing Platforms for Urban Planning, a Hitchhiker’s Guide
https://www.cogitatiopress.com/urbanplanning/article/view/1299
Today, Nov 24, 2016 I am publishing a WIP version of the package for you to test. You can read more about this version and download it at the bottom of this page.
Cheetah_the ONFIGURBANIST is a plugin for configurational analysis in urban design projects, made as an add on for grasshopper; Cheetah is to be a proof of concept for a larger package named as CONFIGURBANIST. This package (Cheetah) is provided "as is" at the moment, without any responsibility for the developers in case of any (potential) damages to the work or materials of users. Cheetah has been developed by Pirouz Nourian and Samaneh Rezvani, at TU Delft, Faculty of Architecture, Department of Architectural Engineering + Technology. Although all the algorithms have been developed by ourselves, we hereby acknowledge that we have learnt a lot from the extremely useful plugin SpiderWeb in the course of developing Cheetah, and we are thankful for that. I have enjoyed working with my friend Dr. José Nuno Beirão on a related project in 2010 and 2011, thanks to him for all the good ideas he inspired me. Between 2011 and 2013, I benefited from comments and ideas of Dr. Meta Berghauser Pont on the preliminary versions of this work. I hereby thank Meta for her support and inspiration. I would like to thank my friend and colleague Ahu Sokmenoglu for the fruitful workshop we had together in Istanbul and for kindly letting me use and experiment with the GIS data of the Tarlabasi neighborhood in Istanbul in the attached example file.
This plugin has been tested in the workshop Urban Datascope at eCAADe 2013, and appears to have no bugs at the moment; however, it is very important that you provide it with street networks that have no unconnected segments.
This is still a preliminary version, which includes a non-efficient Betweenness algorithm. We hope to improve this algoriths in a short while.
Please provide us with your comments, suggestions and problem reports on our forum page: http://www.grasshopper3d.com/group/cheetah
For inquires you can contact Pirouz Nourian: p.nourian@tudelft.nl
A NEW REVOLUTIONIZED VERSION IS UNDER WAY! Right now (15-Sep-2015), I am testing the latest version in a workshop in Vienna :)
Easiest Paths for Walking and Cycling (Our paper at the 10th Space Syntax Symposium):
a) Shortest Path without considering the terrain and difficulty of navigation on an example network from "Tarlabasi", Istanbul, data set provided by Ahu Sokmenoglu; b) Easiest Path geodesic found considering the terrain and tau=0 for angular confusion (thereby no cognitive impedance); c) Easiest Path geodesic computed not considering the terrain and tau=15 seconds; d) Easiest Path geodesic computed considering the terrain and tau=15 seconds
To be presented in 33rd eCAADe conference Vienna, and released before hand. There will be also a workshop:
Cityscape Configuration http://info.tuwien.ac.at/ecaade2015/workshops
This is what you can expect to be released soon:
LATEST RELEASED VERSION IN ACTION!
OLD VERSION
"Cheetah, the CONFIGURBANIST" by Pirouz Nourian & Samaneh Rezvani is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.
Based on a work at http://www.grasshopper3d.com/group/cheetah.
Permissions beyond the scope of this license may be available at https://sites.google.com/site/pirouznourian/.
Hi, we are going to release the latest version as a dll library (API) that can be accessed through C# and VB.NET components. In the meantime, I thought you could try and test the modules and provide suggestions. This new toolkit is in some ways fundamentally different from the version you have been using so far. For more info please check my dissertation:
http://abe.tudelft.nl/index.php/faculty-architecture/issue/archive
if you don't have the time to read this, check this one out:
https://www.researchgate.net/publication/303944600_Spectral_Modelling_for_Spatial_Network_Analysis
If you want to try this version you need to install two libraries in your Grasshopper/Special Folders/Components Folder
* Math.NET (MathNet.Numerics.dll): http://www.mathdotnet.com/
* Configraphics_CS.dll (the library to be completed by me)
Please note that because this package uses Math.NET their licencing terms apply as well as those of mine. Please read the Read-Me panel in the file.
If you want to write a C#/VB snippet to do something in connection to this package we'd be happy to help you with that (as much as the schedules and other things allow us) and eventually involve you as a developer in the next versions.
Our vision for the next versions is to connect/integrate this package with SYNTACTIC and SpiderWeb.
I will replace some of the groups with better/newer modules in the coming days. Stay tuned (through http://www.grasshopper3d.com/group/cheetah).
DISCLAIMER: This file is a Work-in-Progress and likely to contain bugs and errors. Use at your own risk. In no circumstances the authors (mentioned in the CC licence above) can be held responsible for any kind of damage caused by using these packages. The package does not come with any sort of guarantee.
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