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SPACESYNTAX  2004

SPACESYNTAX 2004

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Subject:

Re: Automatic extraction of hierarchical urban networks

From:

Sanjay Rana <[log in to unmask]>

Reply-To:

[log in to unmask]

Date:

Wed, 25 Feb 2004 13:41:46 +0000

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (40 lines)

Dear all,

Could all the users of the ArcView extension "Isovist Analyst" version 1.0,
developed by me, support my claim that:

1. The concept and implementation of maximum diametric length measure was
first proposed by me (in May 2002) in the user's manual (duly copyrighted)
of the "Isovist Analyst".

2. The concept and demonstration of the ridges on the maximum diametric
length measure for finding lines of dominant visibility e.g. axial lines,
was first proposed by me (in May 2002) in the user's manual (duly
copyrighted) of the "Isovist Analyst".

Just drop a line in support as response to this message.

I am sorry to having to ask you to do this but I would be very grateful for
your support because despite my strong and clear repeated verbal and
written protests to the authors, CASA working papers No. 69 and 73 are
giving the entire credit of these two ideas to Carvalho et al..

Carvalho et al. were privy to my research and sadly to my loss, I have been
slow in publishing my results and have landed in this fight to save my
intellectural property right to my ideas.

I would also like to inform you a fundamental misleading piece of
information in both the papers. Both the papers refer to Ratti(2001) for
the maximum diametric length measure which is infact not used in the actual
paper. The papers are actually based on my methodology and I know this
because as the papers say in the acknowledgement, I did the initial runs of
the extension using my software. Although Ratti(2001) also proposed a a
similar diametric length measure, Ratti's measure would not produce the
same "orientation" and "number of ridge lines" as his computation method is
NOT strictly based on Lines of Sights. I had also made this point clear to
both the authors. But above all, here again, there is an effort to
undermine my ideas.

Thanks a lot in advance.

Sanjay.

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