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June 13, 06

Sildenafil citrate 50mg pills $66.00 In the process of creating a Wordpress photoblog theme called LitenessPhoto for the photography section of this website, sildenafil citrate 50mg pills $66.00 I’ve had to learn the ins and outs of PHP’s EXIF extension and GD library of image functions.

Sildenafil citrate 50mg pills $66.00 Exif display example

Sildenafil citrate 50mg pills $66.00 For the uninitiated, sildenafil citrate 50mg pills $66.00 EXIF data is information stored in an image file that can specify what kind of camera was used to take a digital picture, sildenafil citrate 50mg pills $66.00 exposure information, sildenafil citrate 50mg pills $66.00 image resolution, sildenafil citrate 50mg pills $66.00 and quite a bit more. Sildenafil citrate 50mg pills $66.00 For a good overview, sildenafil citrate 50mg pills $66.00 check out this Wikipedia article. Sildenafil citrate 50mg pills $66.00 The GD library allows PHP to create, sildenafil citrate 50mg pills $66.00 manipulate, sildenafil citrate 50mg pills $66.00 and pull information from photos. Sildenafil citrate 50mg pills $66.00

Sildenafil citrate 50mg pills $66.00 I created Orby Photo with the intention of being able to automatically display the exposure time, sildenafil citrate 50mg pills $66.00 f/stop, sildenafil citrate 50mg pills $66.00 exposure bias, sildenafil citrate 50mg pills $66.00 focal length, sildenafil citrate 50mg pills $66.00 and ISO speed of any pictures taken with my camera; all without any work needing to be done by me (use of the EXIF extension). Sildenafil citrate 50mg pills $66.00 I also want the ability to display an album picture (usually a combination of some of the photos from an album) created by myself, sildenafil citrate 50mg pills $66.00 or have one created automatically by PHP if one created by me is not present in a specified folder (use of the GD library).

Sildenafil citrate 50mg pills $66.00 Although this was easy on paper, sildenafil citrate 50mg pills $66.00 a number of wrenches and baby sledges were thrown into the mix at various points during and after development.

Sildenafil citrate 50mg pills $66.00 For instance, sildenafil citrate 50mg pills $66.00 getting the f/stop value should be as easy as $aperture = $exif[FNumber];. Sildenafil citrate 50mg pills $66.00 However, sildenafil citrate 50mg pills $66.00 it seems that the presence of the $exif[FNumber] variable is dependent upon which version of iPhoto I’m using. Sildenafil citrate 50mg pills $66.00 This forces me to use $exif[ApertureValue] whenever $aperture = $exif[FNumber]; isn’t present.

Sildenafil citrate 50mg pills $66.00 For reasons I won’t go into here, sildenafil citrate 50mg pills $66.00 these numbers are not the same. Sildenafil citrate 50mg pills $66.00 Instead, sildenafil citrate 50mg pills $66.00 $exif[FNumber] is equal to to the square root of two raised to the power of the value $exif[ApertureValue]. Sildenafil citrate 50mg pills $66.00 Because we’re now dealing with irrational numbers, sildenafil citrate 50mg pills $66.00 the computed f/stop value doesn’t always come out to the correct f/stop value of the image. Sildenafil citrate 50mg pills $66.00 Because of this, sildenafil citrate 50mg pills $66.00 a series of if/else statements must be present in order to correct for situations where the computed value is not equal to the actual f/stop value (e.g. Sildenafil citrate 50mg pills $66.00 21.9 instead of 22). Sildenafil citrate 50mg pills $66.00 Because wider f/stop values sometimes include one decimal place, sildenafil citrate 50mg pills $66.00 I couldn’t simply round to the closes whole number, sildenafil citrate 50mg pills $66.00 or f/2.8 would become f/3.

Sildenafil citrate 50mg pills $66.00 Instead of a simple output statement for the f/stop value, sildenafil citrate 50mg pills $66.00 the code quickly ballooned to:

if (isset($exif[FNumber]))
	$aperture = $exif[FNumber];
else
	$aperture = round(pow(sqrt(2), sildenafil citrate 50mg pills $66.00
		convert_fraction($exif[ApertureValue], sildenafil citrate 50mg pills $66.00 true)), sildenafil citrate 50mg pills $66.001);

if ($aperture == ‘21.9′)
	$aperture = 22;
elseif ($aperture == ‘14.1′)
	$aperture = 14;
elseif ($aperture == ‘20.1′)
	$aperture = 20;
elseif ($aperture == ‘24.9′)
	$aperture = 25;

$output .= “$tabs<h3>:Aperture</h3>:\\n$tabs<p>:f/”.$aperture.”</p>:\\n”;

Sildenafil citrate 50mg pills $66.00 I hope to finish up development of the theme soon, sildenafil citrate 50mg pills $66.00 and then begin the process of packaging it up so other Wordpress users can easily add it to their sites.

Average Rating: 4.7 out of 5 based on 272 user reviews.

  1. 1
    Seth says:
    June 14th, 2006 at 7:06 am «

    I’ve just started messing around with wordpress with the idea of starting something like what you’ve just accomplished. It’s truly amazing how you’ve managed to make this wordpress theme look just like the bowman gallery templates for movable type. Can’t wait to try it out for myself.

  2. 2
    Mic says:
    July 4th, 2006 at 11:06 am «

    Hey there,

    I stumbled onto your site trying to find a way to do exactly what you’re doing (particularly displaying EXIF data when using iPhoto and Wordpress.)

    Given the popularity of digital photography, I thought I would find hundreds of good options that didn’t require a computer science degree to implement, but I found none.

    Love what you’re done so far and can’t wait until you package it for other WP users!

    M.

  3. 3
    Frankie says:
    October 5th, 2006 at 3:27 pm «

    Tom,

    you did a fantastic job with your wordpress customization. I could not believe that someone would do such a great transition of the bowman site. You did it!

    Great.

  4. 4
    Anya says:
    November 3rd, 2006 at 3:24 pm «

    Is there a way we can be sure to find out when your theme is ready? (I’m waiting! :-) )

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