Re: [htdig-dev] geographic searching in ht//dig

[Gilles D. <gr...@sc...>]

According to Andrew Daviel:
> On Fri, 19 Oct 2001, Gilles Detillieux wrote:
> > My question would be how much support do you need.  Right now, all the
> > developers are pretty strapped for time, so you probably won't get a lot
> > of development work done for you.  However, if you want to make changes
> > to the C++ code yourself, I'm sure Geoff, myself, or a few others can
> > suggest the best approaches and where to put in the changes.  If they're
> > done in a general enough way, they could even be incorporated into the
> > 3.2 development code.
> 
> What is the best way for me to do this ? Send you a patch file ? Put
> my code tree somewhere you can look at it ?
> I was using 3.2.0b3 I think but can use a later snapshot if that is
> better.
> I haven't looked at it for a couple of weeks and have forgotten exactly
> where I got to; I had it working on a Mercator world map but need
> to check the scaling for zoomed-in maps for it to be useful.

For small to medium sized changes, patches against the latest snapshot
have the best chance of being applied successfully to the current CVS
tree.  I should point out that anything that goes into the distributed
source should be fairly general and configurable, and not something that
would only work at one site.

> > I don't know what that would involve, but it might be possible with a
> > front-end wrapper script for htsearch.
> 
> It's not so bad - map clicks are passed as form elements map.x and map.y
> in the URL as usual, but I need to scale them. Actually, it's a
> philosophical issue I guess - do I pass pure latitude and longitude to
> htsearch, thus always requiring a wrapper, or do I pass click x,y plus
> map extents, and map size in pixels in the config file, allowing me to
> do the transformation of click point into position inside htsearch.
> I have currently done the latter.

Sounds reasonable.  If it requires htsearch changes anyway, may as well
make it self-contained if you can.

-- 
Gilles R. Detillieux              E-mail: <gr...@sc...>
Spinal Cord Research Centre       WWW:    http://www.scrc.umanitoba.ca/~grdetil
Dept. Physiology, U. of Manitoba  Phone:  (204)789-3766
Winnipeg, MB  R3E 3J7  (Canada)   Fax:    (204)789-3930