Category: Technology (Page 2 of 4)

I’ve been busy copy-editing and typesetting Laura’s doctoral dissertation. I’ve always been a fan of Donald Knuth and his obsessive work in typesetting with Tex. Since my beloved wife is a Stanford Student, I figured, cool, I’ll use TeTex (Latex) to publish the thing, kinda like an homage to the their text publishing tradition. Also to thumb my nose at the Computer Science graduate students who don’t think anyone outside of their department uses TeTex/Latex. They provide a Microsoft Word Template for the rest of the school. Screw that.

Latex is not for the faint of heart, though. The text markup language has a pretty steep learning curve, but once you get the hang of it, you won’t know how you lived without it.

First: Here is what you get with a Latex source document.

• Auto generated/indexed/enumerated list of tables and figures, complete with hyperlinks (in the PDF generated version) to their appropriate section
• All the enumeration happens regardless of where the table is. You cross reference based on a reference flag, not text. So for example, you don’t write out, "see table 2.1" you just create a label to your table like so, giving it a human readable name (although it could be anything):

  \caption{\label{tab:Articles-with-Language}
Articles with Language as Subject}

  and then you reference your table like this:

  The high percentage of articles on Language present
in this local news section in contrast to a
low percentage on Education (Table \ref{tab:Articles-with-Language})

  You never have to remember what table or figure number goes where with what table or chapter or whatever. You also don’t have to manually update your list of tables or figures. This lets the researcher get to the business of writing their paper rather than screwing around with formatting, which, let’s be honest, occupies a vastly disproportionate amount of the researcher’s time.

• Benevolent Stanford students have graciously provided a complete thesis Latex style to take care of formatting for print/ebook publication. Even/Odd margin stuff is taken care of for you. Smart beautiful justification and hyphenation, footnoting, contents, etc is formated and beautifully handled.
• Laura gets to write her stuff in OpenOffice, export it to Latex and I then format with Stanford’s thesis style sheet.

Here’s what it looks like:

Now that I’ve gotten into this a bit, I’m addicted. I’ve seen how other people have published ebooks and to tell you the truth, they get them pretty wrong. There is no cross referencing, no hyperlinks to the sections, no footnote links, table links etc. In addition, with Lyx (frontend editor to Latex) you get to separate out your chapters, sections etc and have multiple people work on or copy edit at the same time. Since each is but a text file, you can use a source code versioning system like Subversion or CVS to track changes. This allows you to publish tight updated versions and divide up the work.

I highly recommend Lyx, Latex for any sort of professional publishing. It’s makes maintaining long documents of any sort simply a breeze.

Well, they (my thoughts) are mostly unprintable, but I will strongly express my position on bottom posting.

It sucks.

But first, a bit of history:

The top posting, bottom posting debate has been mostly won by the bottom posting folks, that is, when replying to an email, your response should go after the quoted portion of the original email.

That’s caca – big stinky pungent steaming caca.

First, if the email was lengthy, you must scroll for ages to even get to your response. Second, the assertion that bottom posting "conserves" the flow of the conversation and is more "right" is also caca. The flow of the conversation is contained in your threaded mail reader. You do use a threaded mail reader, right? The threaded mail reader will preserve the flow of the conversation just fine, thank you, without all the fuss and muss of quoted portions above and below and all around.

My reasons for top posting (in email… doing so in Usenet will get you keel-hauled) is that my response is the most relevant portion of the email. My response is the reason I am sending said email. If the recipient is too lazy to look at his last email to discern to what I am replying, I have included a snippet of relevant text after my important response for reference’s sake. It is just a little reminder, not the important portion of the email. Bottom posters just don’t seem to get this, little bottom feeders that they are.

I get it, I really do. You are so humble, so meek, so respectful in your correspondence that your pathetic little response must be relegated to the tail end of the email. You suck. I don’t want to do business with you. I would rather do business with someone who has the balls to believe his words mean something and places them at the top of the email accordingly.

Got it?

I understand that this is a sensitive topic for many programmers and Open Source developers and furthermore that the convention of "bottom posting" or "bending over and taking up the rear" has won the day. I understand that top posting is frowned upon in public discussion forums. I disagree of course. Again, your Usenet reader is threaded, right? If you need to bottom post, I think you are an idiot, but I am outnumbered, so I acquiesce. You shall, however, not have the pleasure of enforcing upon me your flagrant disregard for common sense and decency by encroaching upon my personal email habits.

In my email I will top post. I will defend my top posting. I will throw down with anyone that wants to start a flame war on the subject.

I am prepared to defend myself.

I just have to comment on this great little addition to my technology array. The personal music player, Cowon iAudio F1, rocks. I love it, even if the 22 hour advertised battery life only lives up to around 13. But, it plays ogg vorbis, mp3, wma, is super small, does voice recording, has 1 Gigabyte of flash memory, is an FM tuner, records FM radio, and "line in" too all for around $125.00. This little baby rules. I’ve had it for around 6 months now, and I think it’s fabulous, small, and powerful. Highly recommended. No iPods for me, unless I hack it with RockBox… which I might do, btw.

I don’t want my desktop all candified.  I don’t want media.  I don’t want games.  I don’t want music.  I don’t want VOIP.  I don’t want chat.  I don’t want digg, reddit, and slashdot.

ARRRRRGGGGGGGHHHHHH!

I used to be productive.  Now I have MAME to emulate all my favorite standup video games from the eighties and nineties (endless hours of fun).   I now have instant messaging, every manner of music, video, and entertainment imaginable (not to mention all that P2P goodness and without the spyware).  MythTV handles the PVR functions and let me tell you, it’s great. 

It’s too great.

The problem is, I need to do some friggin’ work on this computer.  I remember when the desktop was austere.  I was forced to work, not goof off watching stupid video clips from video.google.com or www.youtube.com. 

HEY YOU MEATHEADS stop messing with the desktop.  It’s too good.  It’s too distracting.  Firefox is too good.  There are too many great extensions.  Mplayer is the best media player on the planet.  Stop it, now! 

I need to do some WORK!

Please make my desktop the non-functioning piece of utilitarian crap that it was five years ago, please please please?

I beg you. 

Pardon me while I geek out again. This particular article falls under the, "look Ma, no hands" category, a shameless play for adoration of my cleverness. What I’m about to show is neither new nor terribly beautiful, nor cost effective for most professional flash designers and/or web designers.

It’s just cool that it was done procedurally and entirely on Linux. First, another caveat; I absolutely do not get these animation tools with their tweening, paths and visual interactions for creation ­of animations. For some reason, when I animate my stupid brain sees a stack of cells, straight up and down. I see the frame changes like a flip book. If I try to­ abstract an object in the animation into some sort of mathematical formula, line, path, or whatever, my little pile of gray matter goes all slushy. Also, my brain likes to see things in text. I know, I know, what’s the matter with me? I don’t even see the code. All I see is blonde, brunette, red-head. Chuckle.

Here’s the finished product: www.og-consulting.com

The door scene modeled in POV-ray scene description language and is typical of Old San Juan, Puerto Rico Spanish Colonial architecture. The real doors are beautiful. If you ever get a chance to take a cruise from/to Puerto Rico, don’t miss the chance to walk around Old San Juan ­(El Viejo San Juan) and check them out. I rendered three frames with the doors rotated from 0 to 75 degrees to simulate… guess what? Opening doors. Clever, huh?

There’s a lot of POV code, here’s a little bit of what it looks like:

cylinder { <0, 0.5, 0>, <0, -0.5, 0>, 0.5
        texture {
        pigment { color rgb <0.6, 0, 0> }
        normal { granite 0.02 turbulence <0.5, 0.9, 0.2> scale 0.25 }
        finish { specular 0.1 reflection .1 }
    }
  }

It’s pretty simple. You place objects in an X-Y-Z space (Cartesian coordinates) like a sphere, cylinder, box or any other of the predefined primitives. You can merge them, subtract them, intersect them in creative ways. Finally, you apply some sort of texture which includes a pigment, a surface (normal), and a finish (reflections effects etc). There are easier ways to model, but sometimes POV-ray’s scene description language is just the most elegant and easiest way to model something.

The next step was to convert the png files to jpegs for inclusion in the flash animation. I used a little sprinkle of bash and a dash of kosher ImageMagick’s convert.

for file in *.png; do convert -quality 100 "$file" "${file%.png}.jpg"; done

For each png file, convert the png file to a 100 percent quality jpeg file. We use 100% quality because I’m going to let the swftools take care of the final compression. There’s no sense in lossy compressing then lossy compressing again. That’s just crazy talk.

We will now create the flash source file. Open a new file slideshow.sc. This is the textual language for the swftools Linux Flash toolkit. I have never ever ever looked at a flash source file from any Macromedia product, so I have no idea if this animation description method looks/acts/walks/talks in anyway shape or form like Macromedia’s products. Don’t know, don’t care.

.flash bbox=640x480 filename="slideshow.swf" version=6 fps=25 compress background=white

  .jpeg s1 "puerta_open03.jpg"
  .jpeg s2 "puerta_open02.jpg"
  .jpeg s3 "puerta_open01.jpg"
  .font font "gilc____.ttf"
  .font arial "arialbi.ttf"
  .text text1 text="Opening Doors" font=font
  .text text2 text="Opening Doors" font=font
  .text text3 text="Opening Doors" font=font
  .text text4 text="OG" font=arial
  .text text5 text="Experts in" font=font
  .text text6 text="Open Source" font=font

  .put s1 scalex=640 scaley=480 alpha=100%
  .put text1 scale=100% x=40 y=220 alpha=0%

  .frame 25
  .put s2 scalex=640 scaley=480 alpha=0%
  .change text1 alpha=100%
  .put text2 scale=100% x=40 y=220

  .frame 100
  .change s2 alpha=0%
  .change text1 alpha=100%
  .change text2 alpha=100%

  .frame 125
  .change text1 alpha=0%
  .change text2 alpha=100%
  .change s2 alpha=100%
  .put s3 scalex=640 scaley=480 alpha=0%
  .put text3 scale=100% x=40 y=220

And so on (that’s not the whole file, but the rest is just repetition. There are 71 total lines of code for that little flash animation. Is that a lot or a little? Seems pretty small to me anyway. Basically, with swftools you define an object (image, or text); you put it; then you change it. You can change its fade, size, location, and more. The swfc program will implement the change from the object’s last known state. Check out swftools for more examples (that’s where I got all the reference I needed to make my little flash thingie).

So there you have it. I walk through the frames, changing elements, putting, fading, growing, moving stuff around. It’s was all described from start to finish in a procedural language, from the POV-ray scene description language, to bash and ImageMagick for command line image manipulation, and finally to swftools flash scene language for the final animation. Pretty nifty, huh?

The neat thing about this is that once the procedure has been developed, you can reuse it for other clients, other looks, colors, messages, etc. In fact, you could directly render it on the server to update information on the fly via end user input. There’s no limit to what you can do with something like this.

Of course if you’re on Windows, you would probably just buy Macromedia’s software… but where’s the fun in that?