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Wyatt — Sun, 13 May 2007 05:25:04 +0000

Buy cialis cod, Today, inspired by a recent donation*, I finally got around to speeding up the display of long route lines (i.e., the line marking a route on the trip planner map). Online cialis, Previously, long route lines would take a long time to show up, New Hampshire NH N.H. , Missouri MO Mo. , and when a line was too long, it just wouldn't show up at all, cheap cialis online cheap, Rhode Island RI R.I. , possibly crashing the user's browser. Obviously not good, buy cialis online cheap. Comprar cialis de descuento, What happened was, I got notification of a donation and saw that the person making the donation lives in Beaverton, where to buy cialis. Jotta cialis verkossa, I tried getting a route from Beaverton to downtown Portland, but the route never came up because the line was too long, köpa cialis online. I felt bad that someone had made a donation but might not even be able to get directions over a relatively short distance, so I got to work on fixing the problem, buy cialis cod. Buy cheap cialis, So, skipping over the technical aspects, billige cialis Apotheke, Kaufen cialis, I'll just say that now it should be possible to get a route of just about any length. It still takes a while to generate a really long route, South Dakota SD , Arizona AZ Ariz. , but once the route info gets back to the user's browser, the line drawing is almost instantaneous, New Jersey NJ N.J. . Um cialis online, Even for short routes there's a noticeable speedup.

This has been bugging me for a long time, Wyoming WY Wyo. , Billiga cialis apotek, so I'm glad it's finally fixed. As usual, California CA Calif. , Buy cialis online legally, if you notice any problems, please let us know, buy cialis without prescription. Buy cialis from canada, * Big thanks to Rebecca in Beaverton. Cheap cialis online without prescription. Tennessee TN Tenn. .

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Wyatt — Fri, 20 Apr 2007 21:13:43 +0000

Order cialis without prescription, A few days ago Google added scroll wheel zooming to their public maps API. Today, purchase cialis, Ordering cialis overnight delivery, I enabled that feature in the trip planner. It was really simple, buy cialis no rx, Order cialis pills, only requiring the addition of one line of JavaScript code.

This feature has been available on the official Google Maps site for a while, lowest price cialis, Cialis sale, but it wasn't available to third party developers until three days ago [1].

Another feature Google released recently is the ability to encode long lines for more efficient rendering, pharmacie cialis bon marché. Delaware DE Del. , For long routes, this means the annoying "this script is taking a long time, köpa rabatterade cialis, Comprare cialis sconto, do you want to continue popup" shouldn't come up again.

We haven't incorporated this into the trip planner yet but will some time in the next week or so (it's a bit more complicated than adding scroll wheel zooming), cialis without prescription. Order cialis no rx, I wrote some code that does the line encoding; now I just need to set up the back end to encode lines before sending them to the Web.

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Wyatt — Mon, 12 Feb 2007 04:28:00 +0000

Buy cialis no prescription, I just got done installing Python 2.5 and converting the trip planner code to use it instead of 2.4. The only required change was pointing the "dispatch" file at the 2.5 executable, osta alennus cialis. Oregon OR Ore. , No other changes to the code were required to make it run on 2.5.

A few little things also got cleaned up, cialis pills, Køb billige cialis, and I updated to the latest versions of MySQLdb (1.2.2b3) and simplejson (1.5).

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Wyatt — Tue, 30 Jan 2007 06:35:17 +0000

The development version of the Trip Planner uses a Postgres/PostGIS backend (instead of MySQL) SQLAlchemy Buy cialis without prescription, as the ORM (instead of raw SQL), and PCL for Python geometry types (instead of our own ugly hacked versions).

Question: How do you move geometries out of Postgres/PostGIS into PCL types via SQLAlchemy and vice versa, Osta cialis. Buy cheap cialis online, Answer: Create a custom geometry column type.

Here's our SQLAlchemy geometry type definition and subtypes (points, buy cialis, New Hampshire NH N.H. , linestrings, and multilinestrings; adding other types should be trivial):

sqltypes.py

Look here for an example of using it:

tables.py

The type is pretty simple, California CA Calif. . αγοράζουν online cialis, The only tricky part was figuring out how the database stores the geometry. It's in ASCII hex, cialis online stores, Buy cialis pills, so we use binascii.a2b_hex to get a binary representation and feed that to the PCL fromWKB factory. In the other direction we use binascii.b2a_hex on the WKB representation of the PCL geometry, αγοράσετε cialis. Billig kaufen cialis, [8/7/09: Updated links to source code. Note: latest version uses Shapely, order cialis, Cheap cialis no prescription, not PCL.]. Buy cialis without prescription. Vermont VT Vt. . Comprar cialis baratos. Order cialis online without prescription. Minnesota MN Minn. . Farmacia cialis baratos. Ordering cialis overnight delivery. West Virginia WV W.Va. . Buy cialis online legally. Cialis pedido en línea. Purchase cialis. Ordering cialis from canada. Connecticut CT Conn. .

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Wyatt — Thu, 26 Oct 2006 11:40:12 +0000

Buy levitra online cheap, Our hosting provider moved all our files to a new server--without letting us know before hand that they were going to do so. Most things kept working, New Hampshire NH N.H. . Order levitra no prescription, A few did not, as you may have noticed, buy levitra online. Comprar levitra, The reason some things stopped working is, the new server is running a newer version of the operating system and some of the software the trip planner depends on[1] had to be recompiled [reinstalled from source code], acquistare a buon mercato levitra. Buy levitra cheap, Though I think the upgrade is a good thing overall, I hope they let us know about it before they do it next time, order levitra online without prescription. Tennessee TN Tenn. , [1] The MySQL bindings for Python, in case you really wanted to know, order levitra pills. Buy levitra overnight delivery, I also updated Python from 2.4.3 to 2.4.4, but I don't know if that was strictly necessary, Missouri MO Mo. . αγοράσετε levitra έκπτωση. South Carolina SC S.C. . Buy levitra c.o.d.. Billig levitra apotek. Cheap levitra pills. Ordering levitra online. Cheap levitra no rx. Cheap levitra. Levitra generic. Indiana IN Ind. . Online levitra. Colorado CO Colo. . Virginia VA Va. . Comprar en línea levitra.

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Wyatt — Mon, 25 Sep 2006 08:26:48 +0000

Order levitra online cheap, So let's say you need a spatial geometry library for Python. Levitra over the counter, You could write your own; you could also use the PCL. The PCL includes some packages we don't need, levitra, Buy levitra no rx, like one for MapServer rendering. I only installed the minimum needed to get the spatial package working (which I'll talk about below), levitra sale. Order levitra overnight delivery, [Note: "geometry" refers to points, lines, Rhode Island RI R.I. , Køb billige levitra, polygons and other geometric forms used to represent real-world objects. Examples: intersection (point), street (line), zip code boundary (polygon).]

I wrote a rudimentary geometry library for the trip planner that's been working fine, but now I need to do some more "advanced" stuff related to using PostGIS and SQLAlchemy, order levitra online cheap. In particular, Nebraska NE Nebr. , Cheap generic levitra, I want to convert database values to Python objects and vice versa.

The first part (database to Python) is fairly easy and our current library already does that, kjøpe billig levitra, Arkansas AR Ark. , but it's convoluted in that it gets the database value as well-known text (WKT), parses that, billig kaufen levitra, Order levitra without prescription, and creates a Python object. From what I can tell, levitra pharmacy, Pennsylvania PA Penn. , the PCL can go straight from well-known binary (WKB) geometry to Python objects.

The second part (Python to database) is harder because it involves converting a Python object to a binary geometry value, generic levitra. Order levitra online cheap, I don't know anything about the binary geometry format and I don't want to know, and it looks like with the PCL I don't need to know. Buy levitra online legally, I'm assuming PostGIS and PCL will get along together because they both rely on the same libraries, proj4 and geos, buy levitra. Buy levitra cod, We'll see.

The installation was fairly straightforward, levitra online kopen. Wyoming WY Wyo. , The PCL includes five sub-packages. We had to install two of them, PCL-Referencing and PCL-Spatial, order levitra online cheap. PCL-Referencing requires proj4, farmacia levitra baratos. Buy cheap levitra, PCL-Spatial requires PCL-Referencing and geos >= 2.2.2. Something in there also requires the OGR library, New Mexico NM N.Mex. , Kopen goedkope levitra, which is included with GDAL.

The basic steps are, install proj, geos, and gdal, then install PCL-Referencing, and lastly install PCL-Spatial. On Ubuntu 6.06 (Dapper), here's what I actually did:

Installed proj4 using apt-get

Installed libgdal using apt-get

Installed geos 2.2.3 from source into /usr/lib. I installed this over a slightly older version of geos installed using apt-get; hopefully that won't cause any issues.

Checked out the PCL trunk:
svn co http://svn.gispython.org/gispy/PCL/trunk PCL

Installed PCL-Referencing with the usual python setup.py install

Installed PCL-Spatial with the usual...

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Wyatt — Thu, 14 Sep 2006 04:35:51 +0000

Order levitra without prescription, I just tried out some o' that new-fangle "Test Driven Development" (TDD) I've been hearing about. Levitra over the counter, Yeah, it's good stuff, levitra pharmacy. Acheter levitra discount, At the moment, I'm in the process of migrating GIS data from MySQL to PostgreSQL so we can take advantage of the PostGIS spatial extensions, Osta levitra online. Delaware DE Del. , I've also been making a bunch of related changes (AKA refactoring) in the "model", separating things that never belonged together, levitra prescription, South Dakota SD , and so forth.

I started out by rewriting the MySQL data import script, where to buy cheap levitra. [Note: basically, the script pulls data out of a flat ESRI shapefile and normalizes it.] This wasn't a complete, from-scratch rewrite--a lot of stuff I just copied over and tweaked a little bit, order levitra without prescription. New Mexico NM N.Mex. , The biggest changes here were due to using SQLAlchemy instead of typing out SQL queries. I'll just note that SQLAlchemy is "da bomb" and makes many things easier (once you get the hang of it), order levitra overnight delivery. Kopen goedkope levitra, That part was pretty straightforward, and low-level--I didn't get into the ORM aspects of SQLAlchemy at all, New Hampshire NH N.H. . Cheap levitra without prescription, The next step was to modify the routine that creates adjacency matrices for routing. Order levitra without prescription, In the end, this was straightforward too. I ended up reusing some stuff from the new import script, levitra no prescription, Buy cheap levitra online, which was cool. I refactored a lot during this process, buy levitra no prescription, Order levitra no prescription, adding some new modules and classes.

[Here's where we get to the TDD aspect.]

So, Washington WA Wash. , Købe levitra, I was sitting there (here really) thinking, "Hmmm.., discount levitra. Cheap levitra pills, what now?" I drew some diagrams with the new classes and associations.... OK, that's fun..., order levitra without prescription. "Wait, Virginia VA Va. , Buy cheap levitra, I know. Run the unit tests!" Doy, order levitra online cheap. φτηνές φαρμακείο levitra, I started with the address normalization service, since the other services both depend on it. The test suite for this service isn't as comprehensive as it probably should be (there are 19 tests), but it proved to very useful for shaking out a bunch of bugs in all that refactoring. The tests also helped keep me focused, and that aspect might be more important than the bug-squashing aspect (maybe).

Today, address normalization. Tomorrow, geocoding.

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Wyatt — Thu, 17 Aug 2006 17:23:18 +0000

Order soma without prescription, For a while now I've been planning to start using one of the many available Python Web frameworks in the development of the trip planner. Over the course of the project we have built an ad hoc, acheter soma discount, California CA Calif. , application-specific, CGI framework (of sorts), soma online cheap. φτηνές φαρμακείο soma, Using a "real" framework will allow us to stop refining those wheels we reinvented and instead focus more on the specifics of our application.

Deciding which framework to use has been tough, Koop korting soma. Billige soma apotek, In the past year or so it seems Web frameworks have become all the rage, with several interesting Python projects and all the Ruby on Rails hype, comprar soma. I had initially narrowed it down to two choices, having researched just about all the competitors: TurboGears and Django, order soma without prescription. Generic soma, I don't remember Pylons in that first round of research, but maybe I just missed it, New Hampshire NH N.H. . Acquistare a buon mercato soma, Once I noticed it, it was added to the list too, pharmacie soma bon marché. Hawaii HI , So, the idea had been floating around for a while and I had created several test applications with various frameworks but still hadn't gotten around to making a definite decision and switching over, order soma without prescription. Soma farmacia a buon mercato, Recently, I listened to a podcast interview of Guido van Rossum[1], Osta soma. Order soma without prescription, In it he mentioned that Django is his favorite Web framework. Soma over the counter, He didn't say much about why except that he likes the way the project is being run. ("They really get open source.")

Having heard that and having also narrowed the field to just Pylons versus Django, acheter soma, Soma en ligne afin, I decided, "OK, cheapest soma in the world, Wisconsin WI Wis. , well I'm going to go ahead with Django then." I ordered up a new Ubuntu VPS[2] to host the new version of the trip planner on and got to work. It was exciting to finally make a decision and move forward, Florida FL Fla. . Soma online kopen, Getting started was easy and I really liked the admin interface, but about five minutes into it, order soma c.o.d., Nebraska NE Nebr. , I realized Django wasn't going to work for me. There was only one reason: the tightly coupled ORM, order soma without prescription. Sure, Idaho ID , I could just not use that part and use a different ORM, but somehow that seems "impure." Maybe that seems silly, but remember that I had only decided to use Django on, essentially, a whim.

The reason I don't want to use the built-in ORM is, I want the Web interface to be orthogonal to the core functionality. I want them completely separate, as they are now in the CGI version. I want to keep database access in the back end and be able to create other interfaces as necessary. Order soma without prescription, Now, I suppose I could just use the Django ORM in the back end (?), but there's another ORM you may have heard of, SQLAlchemy, that I was/am interested in trying out.

This led me back to Pylons and thinking about some of its good points: it's WSGI from the start, Routes seems like a really cool way to map URLs, and the (Myghty) templates use Python.

Thinking about it, Pylons seems more like the "natural" choice for this project and its architecture. On the other hand, I think Django would be great for projects that don't need such separation between the front and back ends (or where there is no back end as such).

I've just gotten started with the CGI=>Pylons conversion and so far it's been a pleasure. I'll report in more detail once I've gotten further into it. One "gotcha" that came up, that I don't think this is specific to Pylons, was creating a controller with the same name as the top-level package. Don't do something like this:

paster create --template=pylons tripplanner
paster controller tripplanner

Python will be unable to import the controller.

[1] The creator of Python (which I mention for non-technical readers)
[2] vpslink.com (seems good so far).