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PHP object programming to implement 3D pie chart_PHP tutorial
- WBOYOriginal
- 2016-07-13 16:54:26861browse
//Public function
//Convert angles to radians
function deg2Arc($degrees) {
return($degrees * (pi()/180.0));
}
//RGB
function getRGB($color){
$R=($color>>16) & 0xff;
$G=($color>>8) & 0xff;
$B=($color) & 0xff;
return (array($R,$G,$B));
}
// Obtain the center of the ellipse (0, 0) The value of the x, y point on the ellipse
function pie_point($deg,$va,$vb){
$x= cos(deg2Arc($deg)) * $va;
$y = sin(deg2Arc($deg)) * $vb;
return (array($x, $y));
}
//3D pie chart class
class Pie3d{
var $a; //The major semi-axis of the ellipse
var $b; //The minor semi-axis of the ellipse
var $DataArray; //The data of each sector
var $ColorArray; //The data of each sector The color requirements are written in hexadecimal but do not add 0x in front
//The edge and shadow are black
function Pie3d($pa=100,$pb=60,$sData="100,200,300,400,500", $sColor= "ee00ff,dd0000,cccccc,ccff00,00ccff")
{
$this->a=$pa;
$this->b=$pb;
$this-> DataArray=split(",",$sData);
$this->ColorArray=split(",",$sColor);
}
function setA($v){
$ this->a=$v;
}
function getA(){
return $this->a;
}
function setB($v){
$ this->b=$v;
}
function getB(){
return $this->b;
}
function setDataArray($v){
$ this->DataArray=split(",",$v);
}
function getDataArray($v){
return $this->DataArray;
}
function setColorArray ($v){
$this->ColorArray=split(",",$v);
}
function getColorArray(){
return $this->ColorArray;
}
function DrawPie(){
$image=imagecreate($this->a*2+40,$this->b*2+40);
$PieCenterX= $this->a+10;
$PieCenterY=$this->b+10;
$DoubleA=$this->a*2;
$DoubleB=$this-> b*2;
list($R,$G,$B)=getRGB(0);
$colorBorder=imagecolorallocate($image,$R,$G,$B);