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Cube
InformationsAuthor: Luciano Salvino
License: Freeware
DescriptionYou can create a cube and rotate it around the x, y, z axes using the following function:
Cube(float a, float b, float c, float scale, float alfax, float alfay, float alfaz)
where a, b and c are the cube dimensions; scale is the scaling factor; alfax, alfay and alfaz are the rotation angles.
Source
<?php
/***************************************************************************
* cube.php
* -------------------
* creado : Viernes, 2 de Julio de 2004
* copyright : (C) 2004 LUCIANO SALVINO
* email : lsalvino@impsat1.com
*
* $Id: cube.php, v 1.3.1 02/07/2004 17:44:00 psotfx Exp $
*
*
***************************************************************************/
define('FPDF_FONTPATH', 'font/');
require('fpdf.php');
class PDF_Cube extends FPDF
{
function Cube($a=10, $b=10, $c=10, $scale=1, $alfax=10, $alfay=10, $alfaz=10) {
$x = ($this->w-$this->rMargin)/2-($a/2);
$y = ($this->h-$this->tMargin)/2-($b/2);
$cubo = Array(
Array($x+$a, $y+$b, $c),
Array($x+$a, $y+$b, -$c),
Array($x-$a, $y+$b, -$c),
Array($x-$a, $y+$b, $c),
Array($x+$a, $y-$b, $c),
Array($x+$a, $y-$b, -$c),
Array($x-$a, $y-$b, -$c),
Array($x-$a, $y-$b, $c)
);
$senx = sin($alfax*pi()/180);
$cosx = cos($alfax*pi()/180);
$seny = sin($alfay*pi()/180);
$cosy = cos($alfay*pi()/180);
$senz = sin($alfaz*pi()/180);
$cosz = cos($alfaz*pi()/180);
$a = $cosy*$cosz;
$b = $cosy*$senz;
$c = -$seny;
$d = $senx*$seny*$cosz-$cosx*$senz;
$e = $senx*$seny*$senz+$cosx*$cosz;
$f = $senx*$cosy;
$g = $cosx*$seny*$cosz+$senx*$senz;
$h = $cosx*$seny*$senz-$senx*$cosz;
$k = $cosx*$cosy;
for ($i=0; $i<count($cubo); $i++) {
$cubo[$i][0] = ($a*$cubo[$i][0]+$b*$cubo[$i][1]+$c*$cubo[$i][2])*$scale;
$cubo[$i][1] = ($d*$cubo[$i][0]+$e*$cubo[$i][1]+$f*$cubo[$i][2])*$scale;
$cubo[$i][2] = ($g*$cubo[$i][0]+$h*$cubo[$i][1]+$k*$cubo[$i][2])*$scale;
}
/*Tapa inferior*/
$this->Line($cubo[0][0], $cubo[0][1], $cubo[1][0], $cubo[1][1]);
$this->Line($cubo[1][0], $cubo[1][1], $cubo[2][0], $cubo[2][1]);
$this->Line($cubo[2][0], $cubo[2][1], $cubo[3][0], $cubo[3][1]);
$this->Line($cubo[3][0], $cubo[3][1], $cubo[0][0], $cubo[0][1]);
/*Tapa superior*/
$this->Line($cubo[4][0], $cubo[4][1], $cubo[5][0], $cubo[5][1]);
$this->Line($cubo[5][0], $cubo[5][1], $cubo[6][0], $cubo[6][1]);
$this->Line($cubo[6][0], $cubo[6][1], $cubo[7][0], $cubo[7][1]);
$this->Line($cubo[7][0], $cubo[7][1], $cubo[4][0], $cubo[4][1]);
/*Laterales*/
$this->Line($cubo[0][0], $cubo[0][1], $cubo[4][0], $cubo[4][1]);
$this->Line($cubo[1][0], $cubo[1][1], $cubo[5][0], $cubo[5][1]);
$this->Line($cubo[2][0], $cubo[2][1], $cubo[6][0], $cubo[6][1]);
$this->Line($cubo[3][0], $cubo[3][1], $cubo[7][0], $cubo[7][1]);
}
}
$a = 50;
$b = 50;
$c = 50;
$scale = .6;
$alfax = 20;
$alfay = 20;
$alfaz = 20;
$pdf = new PDF_Cube();
$pdf->AddPage();
$pdf->Cube($a, $b, $c, $scale, $alfax, $alfay, $alfaz);
$pdf->Output();
?>
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View the result here.
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