Version: 1.0
Type: Function
Category: Graphics
License: GNU General Public License
Description: it allows to the creation of graficos 3D, the data can be gotten through one bd, it functions well, it needs the library php_gd2
<?php
class arc{
var $start, $end;
function arc($s=0, $e=360){
$this->start = $s;
$this->end = $e;
}
}
class graficoQueijo{
var $cx, $cy, $image, $array_dados, $array_nomes, $arcos;
var $w, $h, $total, $width, $height, $num_barras;
var $cor_titulo, $cor_fundo, $cor_letras, $cores, $dark_cores, $preto;
function graficoQueijo($larg=220, $alt=300, $estilo){
$this->image = imagecreate($larg, $alt);
$this->cores = array("0" => imagecolorallocate($this->image, 0xFF, 0x00, 0x00), //red
"1" => imagecolorallocate($this->image, 0x00, 0xFF, 0x00), //green
"2" => imagecolorallocate($this->image, 0x00, 0x00, 0xFF), //blue
"3" => imagecolorallocate($this->image, 0xFF, 0xFF, 0x00), //yellow
"4" => imagecolorallocate($this->image, 0xFF, 0x00, 0xFF), //purple
"5" => imagecolorallocate($this->image, 0x00, 0xFF, 0xFF)); //cyan
$this->dark_cores = array("0" => imagecolorallocate($this->image, 0x90, 0x00, 0x00),
"1" => imagecolorallocate($this->image, 0x00, 0x90, 0x00),
"2" => imagecolorallocate($this->image, 0x00, 0x00, 0x90),
"3" => imagecolorallocate($this->image, 0x90, 0x90, 0x00),
"4" => imagecolorallocate($this->image, 0x90, 0x00, 0x90),
"5" => imagecolorallocate($this->image, 0x00, 0x90, 0x90));
//$this->cor_fundo = imagecolorallocate($this->image, 0xDE, 0xE3, 0xE7);
$estilo = ($estilo == "") ? 'Classico' : $estilo;
switch($estilo){
case 'Classico': $this->cor_fundo = imagecolorallocate($this->image, 0xC1, 0xC7, 0xCC);
break;
case 'Feminista': $this->cor_fundo = imagecolorallocate($this->image, 0xFF, 0xB3, 0xB3);
break;
case 'Moderno': //$this->cor_fundo = imagecolorallocate($this->image, 0xDE, 0xEB, 0xF7);
$this->cor_fundo = imagecolorallocate($this->image, 0x8C, 0xBA, 0xDE);
break;
}
$this->preto = imagecolorallocate($this->image, 0, 0, 0);
$this->array_dados = array();
$this->array_nomes = array();
$this->cx = 208;
$this->cy = 170;
$this->w = 350; // 300
$this->h = 170; // 200
$this->width = $larg;
$this->height = $alt;
imagefill($this->image, 0, 0, $this->cor_fundo);
imagesetpixel ($this->image, 100, 100, $this->cor_fundo);
imagerectangle ($this->image, 0, 0, $larg-1, $alt-1, $this->preto);
}
function adicionarTitulo($titulo){
$this->cor_titulo = imagecolorallocate($this->image, 255, 255, 255);
$corRect = imagecolorallocate($this->image, 0, 0x3F, 0x7D);
$x2 = $this->width-2;
$y2 = 20;
imagefilledrectangle ($this->image, 1, 1, $x2, $y2, $corRect);
imagestring($this->image, 5, 4, 3, ':: '.$titulo, $this->cor_titulo);
imageline ($this->image, 0, $y2+1, $x2, $y2+1, $this->preto);
}
function addDados($dado){ array_push($this->array_dados, $dado); }
function addNomes($dado){ array_push($this->array_nomes, $dado); }
function destroy(){ imagedestroy($this->image); }
function criaGrafico(){
$this->total = array_sum($this->array_dados);
$num = count($this->array_dados);
$this->arcos = array($num); // guarda os angulos dos arcos
$start=0; $soma=0;
if ($this->total == 0)
return;
for ($a=0; $a<$num; $a++){
$end = $this->array_dados[$a]/$this->total*360;
$soma += $end;
$this->arcos[$a] = new arc($start, $soma);
$start = $soma;
}
// -------- faz o efeito 3D --------
$inc3D = $this->cy - 35; // 20
srand((double)microtime()*1000000);
for ($i=$this->cy; $i>$inc3D; $i--){
for ($a=0; $a<$num; $a++){
if ($a+1 > count($this->cores)){
$r = rand(100, 255);
$g = rand(100, 255);
$b = rand(100, 255);
$cor = imagecolorallocate($this->image, $r, $g, $b);
$dark_cor = imagecolorallocate($this->image, $r-100, $g-100, $b-100);
array_push($this->cores, $cor);
array_push($this->dark_cores, $dark_cor);
}imagefilledarc($this->image, $this->cx, $i, $this->w, $this->h, $this->arcos[$a]->start, $this->arcos[$a]->end, $this->dark_cores[$a], IMG_ARC_PIE);
}
}
// --- parte de baixo ---
imagearc($this->image, $this->cx, $this->cy, $this->w, $this->h, 0, 180, $this->preto);
$x1 = $this->cx+$this->w*cos(deg2rad(0))/2;
$x2 = $this->cx+$this->w*cos(deg2rad(180))/2;
imageline ($this->image, $x1, $inc3D, $x1, $this->cy, $this->preto);
imageline ($this->image, $x2, $inc3D, $x2, $this->cy, $this->preto);
//--- desenha a parte de cima do grfico ---
for ($a=0; $a<$num; $a++){
if ($this->array_dados[$a] == $this->total){
imagefilledarc($this->image, $this->cx, $inc3D, $this->w, $this->h, $this->arcos[$a]->start, $this->arcos[$a]->end, $this->cores[$a], IMG_ARC_PIE);
imagearc($this->image, $this->cx, $inc3D, $this->w, $this->h, 0, 360, $this->preto);
}else{
imagefilledarc($this->image, $this->cx, $inc3D, $this->w, $this->h, $this->arcos[$a]->start, $this->arcos[$a]->end, $this->cores[$a], IMG_ARC_PIE);
imagefilledarc($this->image, $this->cx, $inc3D, $this->w, $this->h, $this->arcos[$a]->start, $this->arcos[$a]->end, $this->preto, IMG_ARC_NOFILL | IMG_ARC_EDGED);
}
}
}
function desenhaGrafico(){
imagepng($this->image);
imagedestroy($this->image);
}
function guardaGrafico($img){
imagepng($this->image, $img);
imagedestroy($this->image);
}
function criaLegenda(){
$cor_legenda = imagecolorallocate($this->image, 255, 255, 204);
$this->num_barras = count($this->array_dados);
$x1=10;
$y1=290;
$x2=$this->width-11;
$y2=$y1+(20*$this->num_barras);
$inc=10;
imagestring ($this->image, 3, 10, $y1-15, "Legenda:", $this->dark_cores[2]);
imagerectangle($this->image, $x1, $y1, $x2, $y2, $this->dark_cores[2]); //caixa envolvente
imagefilledrectangle($this->image, $x1+1, $y1+1, $x2-1, $y2-1, $cor_legenda);
$x1+=10;
$total = array_sum($this->array_dados);
$soma = 0;
if ($total == 0)
return;
for ($a=0, $k=5; $a<$this->num_barras; $a++, $k+=20){
imagefilledrectangle($this->image, $x1, $y1+$k, $x1+$inc, $y1+$k+$inc, $this->cores[$a]);
imagerectangle($this->image, $x1-1, $y1+$k-1, $x1+$inc+1, $y1+$k+$inc+1, $this->preto);
imagestring($this->image, 3, 38, $y1+$k-1, $this->array_nomes[$a], $this->preto);
$perc = $this->array_dados[$a]*100/$total;
$final = round($perc, 2);
$soma += floatval($final);;
if ($a+1 != $this->num_barras){
imagestring($this->image, 3, 330, $y1+$k-1, $final." %", $this->preto);
}else{
$val = (100 - $soma);
imagestring($this->image, 3, 330, $y1+$k-1, $final." %", $this->preto);
}
}
}
}
// ------------- criar o grafico -------------
$maior = 100;
$titulo = "Popularidade dos Clubes Portugueses";
$gq = new graficoQueijo(420, 360, $estilo_s);
$gq->adicionarTitulo($titulo);
$gq->addDados(100);
$gq->addNomes("Benfica");
$gq->addDados(75);
$gq->addNomes("Porto MFC");
$gq->addDados(50);
$gq->addNomes("Juveo Gay");
$gq->criaGrafico();
$gq->criaLegenda();
$gq->desenhaGrafico();
?>
