清华大佬耗费三个月吐血整理的几百G的资源，免费分享！....>>>
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 | /******************************* 折线图生成函数******************************/function line_stats_pic ( $value_y,$width,$high,$strong=1,$fix=0 ){//y值处理函数 function line_point_y ( $num,$width,$high,$max_num_add,$min_num_add,$y_pxdensity ) { $return=$high-floor ( ( $num-$min_num_add+$y_pxdensity ) / ( ( $max_num_add-$min_num_add ) /$high ) ); return $return; }//参数处理 $allnum=sizeof ( $value_y ); $max_num=max ( $value_y ); //最大值 $min_num=min ( $value_y ); //最小值 $limit_m=$max_num-$min_num; //极差 $max_num_add=$max_num+$limit_m*0.1; //轴最大值 $min_num_add=$min_num-$limit_m*0.1; //轴最小值 $limit=$max_num_add-$min_num_add; //极差-坐标轴y $y_pxdensity= ( $max_num_add-$min_num_add ) /$high; //y轴密度 $x_pxdensity=floor ( $width/$allnum ); //x轴密度 reset ( $value_y ); //将数组指针归零 $i=0; foreach ( $value_y as $val ) { $point_y[$i]=line_point_y ( $val,$width,$high,$max_num_add,$min_num_add,$y_pxdensity ); $i++; } $zero_y=line_point_y ( 0,$width,$high,$max_num_add,$min_num_add,$y_pxdensity ); //零点的y值 $empty_size_x= ( strlen ( $max_num ) > strlen ( $min_num ) ? strlen ( $max_num ) : strlen ( $min_num ) ) *5+3; //左边空白//图片流开始 header ( "Content-type:image/png" ); $pic=imagecreate ( $width+$empty_size_x+10,$high+13 ); imagecolorallocate ( $pic,255,255,255 ); //背景色 $color_1=imagecolorallocate ( $pic,30,144,255 ); //线条色 $color_2=imagecolorallocate ( $pic,0,0,0 ); //黑色 $color_3=imagecolorallocate ( $pic,194,194,194 );//灰色//绘制网格 imagesetthickness ( $pic,1 ); //网格线宽 $y_line_width=floor ( $width/100 ); //纵网格线数目 $y_line_density=$y_line_width==0 ? 0 :floor ( $width/$y_line_width ); //纵网格线密度 $point_zero_y=$zero_y > $high ? $high : $zero_y; imagestring ( $pic,1,$empty_size_x-1,$high+4,"0",$color_2 ); //零点数轴标记 for ( $i=1; $i <= $y_line_width; $i++ ) //绘制纵网格线 { imagesetthickness ( $pic,1 ); //网格线宽 imageline ( $pic,$y_line_density*$i+$empty_size_x,0,$y_line_density*$i+$empty_size_x,$high,$color_3 ); imagesetthickness ( $pic,2 ); //轴点线宽 imageline ( $pic,$y_line_density*$i+$empty_size_x,$point_zero_y-4,$y_line_density*$i+$empty_size_x,$point_zero_y,$color_2 ); imagestring ( $pic,1,100*$i+$empty_size_x-5,$high+4,$allnum/$y_line_width*$i,$color_2 ); //数轴标记 } $x_line_width=floor ( $high/30 ); //横网格线数目 $x_line_density=$x_line_width==0 ? 0 :floor ( $high/$y_line_width ); //横网格线密度 if ( $zero_y > $high ) //绘制横网格线 { imagestring ( $pic,1,0,$high-3,round ( $min_num_add,$fix ),$color_2 ); //零点数轴标记 for ( $i=1; $i <= $x_line_width; $i++ ) { imagesetthickness ( $pic,1 ); //网格线宽 imageline ( $pic,0+$empty_size_x,$high-$x_line_density*$i,$width+$empty_size_x,$high-$x_line_density*$i,$color_3 ); imagesetthickness ( $pic,2 ); //轴点线宽 imageline ( $pic,0+$empty_size_x,$high-$x_line_density*$i,3+$empty_size_x,$high-$x_line_density*$i,$color_2 ); imagestring ( $pic,1,0,$high-$x_line_density*$i-3,round ( $limit/$x_line_width*$i+$min_num_add,$fix ),$color_2 ); //数轴标记 } } else { imagestring ( $pic,1,$empty_size_x-8,$zero_y,"0",$color_2 ); //零点数轴标记 for ( $i=1; $i <= ceil ( $x_line_width/2 ); $i++ ) { imagesetthickness ( $pic,1 ); //网格线宽 imageline ( $pic,0+$empty_size_x,$zero_y-$x_line_density*$i,$width+$empty_size_x,$zero_y-$x_line_density*$i,$color_3 ); if ( $zero_y+$x_line_density*$i < $high ) { imageline ( $pic,0+$empty_size_x,$zero_y+$x_line_density*$i,$width+$empty_size_x,$zero_y+$x_line_density*$i,$color_3 ); } imagesetthickness ( $pic,2 ); //轴点线宽 imageline ( $pic,0+$empty_size_x,$zero_y-$x_line_density*$i,3+$empty_size_x,$zero_y-$x_line_density*$i,$color_2 ); if ( $zero_y+$x_line_density*$i < $high ) { imageline ( $pic,0+$empty_size_x,$zero_y+$x_line_density*$i,3+$empty_size_x,$zero_y+$x_line_density*$i,$color_2 ); } imagestring ( $pic,1,0,$zero_y-$x_line_density*$i-3,round ( $limit/$x_line_width*$i,$fix ),$color_2 ); //数轴标记 if ( $zero_y+$x_line_density*$i < $high ) { imagestring ( $pic,1,0,$zero_y+$x_line_density*$i-3,round ( -$limit/$x_line_width*$i,$fix ),$color_2 ); //数轴标记 } } }//绘制轴线 imagesetthickness ( $pic,2 ); //轴线宽 imageline ( $pic,1+$empty_size_x,0,1+$empty_size_x,$high,$color_2 ); if ( $zero_y > $high ) //x轴位置 { imageline ( $pic,0+$empty_size_x,$high,$width+$empty_size_x,$high,$color_2 ); } else { imageline ( $pic,0+$empty_size_x,$zero_y,$width+$empty_size_x,$zero_y,$color_2 ); }//产生折线 $point_x=0; $j=0; imagesetthickness ( $pic,$strong ); //线条粗细 while ( $j+1 < $allnum ) { imageline ( $pic,$point_x+2+$empty_size_x,$point_y[$j],$point_x+$x_pxdensity+2+$empty_size_x,$point_y[$j+1],$color_1 ); $point_x+=$x_pxdensity; $j++; } imagepng ( $pic ); imagedestroy ( $pic );}/*函数描述及例子参数说明：$value_y -------- 包含你想生成折线图的数组，要求键值从0开始递增。$width--------生成的折线图的网格宽度（不算白边）$high--------高度$strong-------线条粗细（默认为1）$fix-------数据保留的位数（默认为取整）*/for ( $i=0; $i<100; $i++ ){ $value = rand ( 1,200 ); $value_y[]=$value;}line_stats_pic ( $value_y,500,100,1,1 );?> |