3维饼图
饼图
一直想发表点东西。最近刚把php4中的php_gd.dll搞定,就迫不及待的想做点图形程序玩玩。看到有许多php做饼图的例子,看了一下都是2维的,于是就想做个3维的。经过努力pie3d完成了,好东西与大家分享。不过小弟是php新手,代码可能不够精炼,希望大家指教共同来完善这个程序。记得通知我(estorm@yeah.net)
+------------------------+
| pie3dfun.php//公用函数 |
+------------------------+
define("ANGLE_STEP",5);//定义画椭圆弧时的角度步长
function chx_getdarkcolor($img,$clr){//求$clr对应的暗色
$rgb=imagecolorsforindex($img,$clr);
return array($rgb["red"]/2,$rgb["green"]/2,$rgb["blue"]/2);
}
function chx_getexy($a,$b,$d){//求角度$d对应的椭圆上的点坐标
$d=deg2rad($d);
return array(round($a*Cos($d)),round($b*Sin($d)));
}
function chx_arc($img,$ox,$oy,$a,$b,$sd,$ed,$clr){//椭圆弧函数
$n=ceil(($ed-$sd)/ANGLE_STEP);
$d=$sd;
list($x0,$y0)=chx_getexy($a,$b,$d);
for($i=0;$i$d=($d+ANGLE_STEP)>$ed?$ed:($d+ANGLE_STEP);
list($x,$y)=chx_getexy($a,$b,$d);
imageline($img,$x0+$ox,$y0+$oy,$x+$ox,$y+$oy,$clr);
$x0=$x;
$y0=$y;
}
}
function chx_sector($img,$ox,$oy,$a,$b,$sd,$ed,$clr){//画扇面
$n=ceil(($ed-$sd)/ANGLE_STEP);
$d=$sd;
list($x0,$y0)=chx_getexy($a,$b,$d);
imageline($img,$x0+$ox,$y0+$oy,$ox,$oy,$clr);
for($i=0;$i$d=($d+ANGLE_STEP)>$ed?$ed:($d+ANGLE_STEP);
list($x,$y)=chx_getexy($a,$b,$d);
imageline($img,$x0+$ox,$y0+$oy,$x+$ox,$y+$oy,$clr);
$x0=$x;
$y0=$y;
}
imageline($img,$x0+$ox,$y0+$oy,$ox,$oy,$clr);
list($x,$y)=chx_getexy($a/2,$b/2,($d+$sd)/2);
imagefill($img,$x+$ox,$y+$oy,$clr);
}
function chx_sector3d($img,$ox,$oy,$a,$b,$v,$sd,$ed,$clr){//3d扇面
chx_sector($img,$ox,$oy,$a,$b,$sd,$ed,$clr);
if($sdlist($R,$G,$B)=chx_getdarkcolor($img,$clr);
$clr=imagecolorallocate($img,$R,$G,$B);
if($ed>180) $ed=180;
list($sx,$sy)=chx_getexy($a,$b,$sd);
$sx+=$ox;
$sy+=$oy;
list($ex,$ey)=chx_getexy($a,$b,$ed);
$ex+=$ox;
$ey+=$oy;
imageline($img,$sx,$sy,$sx,$sy+$v,$clr);
imageline($img,$ex,$ey,$ex,$ey+$v,$clr);
chx_arc($img,$ox,$oy+$v,$a,$b,$sd,$ed,$clr);
list($sx,$sy)=chx_getexy($a,$b,($sd+$ed)/2);
$sy+=$oy+$v/2;
$sx+=$ox;
imagefill($img,$sx,$sy,$clr);
}
}
function chx_getindexcolor($img,$clr){//RBG转索引色
$R=($clr>>16) & 0xff;
$G=($clr>>8)& 0xff;
$B=($clr) & 0xff;
return imagecolorallocate($img,$R,$G,$B);
}
?>
+--------------------------+
| pie3d.php //三维饼图文件 |
+--------------------------+
require("pie3dfun.php");
$a=150;//椭圆长半轴
$b=50;//椭圆段半轴
$v=20;//圆饼高度
$font=5;//字体
$ox=5+$a;
$oy=5+$b;
$fw=imagefontwidth($font);
$fh=imagefontheight($font);
$datLst=array(30,10,20,20,10,20,10,20);//数据
$labLst=array("a1","a2","a3","a4","a5","a6","a7","a8");//标签
$clrLst=array(0x99ff00,0xff6666,0x0099ff,0xff99ff,0xffff99,0x99ffff,0xff3333,0x009999);
$w=10+$a*2;
$h=10+$b*2+$v+($fh+2)*count($datLst);
$img=imagecreate($w,$h);
//转RGB为索引色
for($i=0;$i
$clrbk=imagecolorallocate($img,0xff,0xff,0xff);
$clrt=imagecolorallocate($img,0x00,0x00,0x00);
//填充背景色
imagefill($img,0,0,$clrbk);
//求和
$tot=0;
for($i=0;$i
$sd=0;
$ed=0;
$ly=10+$b*2+$v;
for($i=0;$i $sd=$ed;
$ed+=$datLst[$i]/$tot*360;
//画圆饼
chx_sector3d($img,$ox,$oy,$a,$b,$v,$sd,$ed,$clrLst[$i]);//$sd,$ed,$clrLst[$i]);
//画标签
imagefilledrectangle($img,5,$ly,5+$fw,$ly+$fh,$clrLst[$i]);
imagerectangle($img,5,$ly,5+$fw,$ly+$fh,$clrt);
imagestring($img,$font,5+2*$fw,$ly,
$labLst[$i].":".$datLst[$i]."(".(round(10000*($datLst[$i]/$tot))/100)."%)",
$clrt);
$ly+=$fh+2;
}
//输出图形
header("Content-type:image/gif");
imagegif($img);
?>

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



Methods to open img files include using virtual optical drive software, using compression software, and using special tools. Detailed introduction: 1. Use virtual optical drive software to open, download and install a virtual optical drive software, right-click the img file, select "Open with" or "Associated Program", select the installed virtual optical drive software in the pop-up dialog box, virtual The optical drive software will automatically load the img file and use it as a disc image in the virtual optical drive. Double-click the disc icon in the virtual optical drive to open the img file and access its contents, etc.

How to open the img file: 1. Confirm the img file path; 2. Use the img file opener; 3. Select the opening method; 4. View the picture; 5. Save the picture. The img file is a commonly used image file format, usually used to store picture data.

img is a file compression format, mainly used to create image files of floppy disks. It can be used to compress the contents of an entire floppy disk or an entire CD; files with the extension ".IMG" are created using this file format. ; The img file includes 3 basic nodes, namely "Ehfa_HeaderTag", "Ehfa_File" and "Ehfa_Entry".

php提交表单通过后,弹出的对话框怎样在当前页弹出php提交表单通过后,弹出的对话框怎样在当前页弹出而不是在空白页弹出?想实现这样的效果:而不是空白页弹出:------解决方案--------------------如果你的验证用PHP在后端,那么就用Ajax;仅供参考:HTML code

U disk is one of the frequently used storage devices. There will also be some minor problems during use. For example: the U disk cannot be read. How to solve it? Put it away! Can’t read the USB flash drive? 4 steps to teach you how to solve the problem easily. After the USB flash drive has been inserted into the computer, click the Start menu, select Control Panel and put it away! Can’t read the USB flash drive? 4 steps to teach you to easily solve the problem. Find and double-click Device Manager in Control Panel. Keep it! Can’t read the USB flash drive? 4 steps to teach you how to easily solve the problem: Find the Universal Serial Bus controller on the main interface of the Device Manager and put it away! Can’t read the USB flash drive? 4 steps to teach you how to easily find the USB mass storage device, select it, right-click, find Uninstall and put it away! Can’t read the USB flash drive? 4 steps to teach you how to solve the problem easily. Welcome to leave a message for discussion!

How to change the img src attribute in jquery: 1. Use the attr() attribute, the syntax "$("img").attr("src","The address of the image file")"; 2. Use the prop() method, the syntax " $("img").prop("src","The address of the image file")".

In HTML, the image tag refers to the tag used to define the image, that is, the "<img>" tag. The img element can embed an image into a web page. The "<img>" tag is used to create a placeholder for the referenced image and link the image to the HTML page; the img tag uses the src attribute to specify the URL for displaying the image. Syntax "<img src="imageurl">".

Solution to css img distortion: 1. Open the corresponding css file; 2. Set "object-fit:none;" to retain the length and width of the original element content.
