PHP Stock Candlestick Chart Generation Code _php tutorial

This program implements PHP histogram//Its design idea is: first to use Imagecreate () to generate a blank shape, its program is implemented as follows://need two different colors, positive number of a negative one, an array of data, $path to save the image of the address

This program to implement PHP histogram, the development of stock site friends often encounter in the generation of K-line images, now we take a look at the use of PHP based on the array of data generated by the K-line image.
Its design idea is: first to use Imagecreate () to generate a blank shape, its program is implemented as follows:
Requires two different colors, a positive number, a negative one, an array of data, $path to save the image's address

$data = Array ("1174.58", "1865.41", "1961.24", "-1174.58", "-1865.41", "1961.24", "1174.58", "-1865.41", "1961.24", "- 1174.58 ","-1865.41 "," 1961.24 "," 1174.58 ","-1865.41 "," 1961.24 ","-1174.58 ","-1865.41 "," 1961.24 ","-1174.58 ","- 1865.41 "," 1961.24 "," 1174.58 "," 1865.41 "," 1961.24 "," 1174.58 ","-1865.41 "," 1961.24 ","-1174.58 ","-1865.41 "," 1961.24 ");
$colors = Array (Array (255,0,0), Array (0,255,0));
$path = "Gg15_600050.gif";
$title = "China Unicom (600050) 30th Capital Access";
$date = Array ("2010-05-20 00:00:00", "2010-05-20 00:00:00", "2010-05-20 00:00:00", "2010-05-20 00:00:00", "2010-05-20 00:00:00 "," 2010-05-20 00:00:00 "," 2010-05-20 00:00:00 "," 2010-05-20 00:00:00 "," 2010-05-20 00:00:00 "," 2010-05-20 00:00:00 "," 2010-05-20 00:00:00 "," 2010-05-20 00:00:00 "," 2010-05-20 00:00:00 "," 2010-05-20 00:00:00 "," 2010-05-20 00:00:00 "," 2010-05-20 00:00:00 "," 2010-05-20 00:00:00 "," 2010-05-20 00:00:00 "," 2010-05-20 00:00:00 "," 2010-05-20 00:00:00 "," 2010-05-20 00:00:00 "," 2010-05-20 00:00:00 "," 2010-05-20 00:00:00 "," 2010-05-20 00:00:00 "," 2010-05-20 00:00:00 "," 2010-05-20 00:00:00 "," 2010-05-20 00:00:00 "," 2010-05-20 00:00:00 "," 2010-05-20 00:00:00 "," 2010-05-20 00:00:00 ");
$hai = Array ( 7203,6037,1931,9605,7405,8855,228,7771,8671,8791,1290,426,3265,4298,4809,3350,8204,8682,5523,7569,5853,593,3124,9062,3329 , 3236,2252,8756,2796,5164,2599,2630,1470,9779,8805,1512,1517,5635,760,1380,152,6035,2905,3163,9443,9432,5031,2838,6802,93 30,1878,1333,4297,4180,3037,4527,9043,7287,3248,3448,3405,7204,2203,3974,4399,7333,4541,7033,4292,6128,9955,8603,297,6992 , 3282,9612,4483,8379,4016,6038,4163,3789,6896,8710,1502,1579,1712,3705,3619,5150,3007,1853,2776,3056,569,9031,6092,8600,8 941,6366,5829,433,8011,9637,9106,1761,2422,9873,8186,1136,1763,3050,285,1962,775,9900,7371,2691,9051,6596,6858,6726,1527 , 3970,910,2621,7598,7899,6546,3678,2202,9411,6129,8352,4830,4484,6776,243,323,3946,751,7508,8173,3776,5071,3847,3318,4901 , 2102,7516,5251,3299,8859,2114,8711,9800,7707,5898,3489,580,5763,2470,4126,6269,5191,182,412,3043,3208,2438,6889,1732,197 9,7692,3445,8214,8620,9446,4624,3615,5496,6152,213,3715,9623,1215,4757,9443,3366,2988,8043,6874,3742,4974,4812,6839,3016 , 5625,4656,5315,8303,8346,2315,3230,1969,1688,7381,6463,1030,8856,4691,6042,7652,8502,3839,7844,9149,4029,9465,2897,7688,3791,1458,6981,484,12 90,4261,1222,9503,4881,7663,1399,2260,8066,6405,8442,722,9297,177,8426,2103,2078,3521,2280,8570,4663,6227,5784,7438,654,3 036,9965,872,8306,3537,899,5888,1319,2472,9218,4853,7849,9433,1196,4880,1597,9258,7465,8138,817,1637,4201,1939,8914,1114 , 2232,8251,4538,7378,7438,4489,993,5269,944,2718,6633,4378,8431,155,5061,9347,1125,8865,4629,9965,4706,6263,8742,971,301 );
Draw (600,300, $data, $colors, $path, $title, $date);
function Draw ($w, $h, $data, $colors, $path, $title, $date)
{
Create a new blank shape
Arrows 50 pixels, content 400*300
$width = $w;
$height = $h;
Get the coordinate point in the lower left corner, 50 pixels to the left and 50 pixels at the bottom for writing the ruler
$l _b_x = 50;
$l _b_y = $height/2;

$chartfont = 2; Chart font
$font = ' C:/WINDOWS/FONTS/SIMSUN.TTC ';//fonts that support Chinese characters
$chartfontheight = Imagefontheight ($chartfont);//The size of the chart font

Get the most data
$max = ABS (max ($data));
$max = $max >abs (min ($data))? $max: Abs (min ($data));
$image = Imagecreate ($width, $height);

Fill background is white
$color _white = imagecolorallocate ($image, 0xFF, 0xFF, 0xff);//White
$color _diwen = imagecolorallocate ($image, 0xd8,0xd8,0xd8);//Dark grey
Imagefill ($image, 0,0, $color _white);
Write logo
Imagettftext ($image, 20,0, $l _b_x+20,45, $color _diwen, $font, ' South China Financial Network ');
Draw coordinates
Coordinate color is black, draw coordinates first, then draw arrows
$black _color = imagecolorallocate ($image, 0x00,0x00,0x00);
Imageline ($image, $l _b_x, $l _b_y, $l _b_x,10, $black _color);
Imageline ($image, $l _b_x, $l _b_y, $width -10, $l _b_y, $black _color);
Arrow
Imageline ($image, $l _b_x,10, $l _b_x-3,14, $black _color);
Imageline ($image, $l _b_x,10, $l _b_x+3,14, $black _color);
Imageline ($image, $width -10, $l _b_y, $width -13, $l _b_y-3, $black _color);
Imageline ($image, $width -10, $l _b_y, $width -13, $l _b_y+3, $black _color);
Shading, Gray, 20 shading; dashed line
$pit = Floor (($l _b_y-50)/10);//height of each segment
$pit _x = Floor (($width-$l _b_x-30)/count ($data));//width of each segment
Unit of calculation
$x _max = $max;
$flag _danwei = 0;
while ($x _max> 1000)
{
$x _max/= 100;
$flag _danwei++;
}
Switch ($flag _danwei)
{
Case 0: $danwei = ' (yuan) ';
Case 0: $danwei = ' (million) ';
Case 1: $danwei = ' (million) ';
Case 2: $danwei = ' (billion) ';
Case 3: $danwei = ' (tens of billions) ';
}
for ($i =1; $i <11; $i + +)
{
Imageline ($image, $l _b_x+1, $l _b_y-$i * $pit, $width -15, $l _b_y-$i * $pit, $color _diwen);
The value from the coordinate
$v _v = Number_format (($max/(10*pow ($flag _danwei)) * $i), 2);
$v _v = substr ($v _v,0,5);
Imagestring ($image,
$chartfont,
$l _b_x-40,
$l _b_y-$i * $pit-10,
$v _v,
$black _color);
}
Origin Point coordinates
Imagestring ($image,
$chartfont,
$l _b_x-20,
$l _b_y-10,
0,
$black _color);
Write kanji, units and titles
Imagettftext ($image, 10,0, $l _b_x-45,20, $black _color, $font, $danwei);
Imagettftext ($image, 11,0, $width/2-70, $l _b_y+20, $black _color, $font, $title);

Draw the cylinder, rectangle, and color
$color _big = imagecolorallocate ($image, $colors [0][0], $colors [0][1], $colors [0][2]);
$color _small = imagecolorallocate ($image, $colors [1][0], $colors [1][1], $colors [[]];
for ($j =0; $j <>
{
$d _h = Floor (ABS ($data [$j]/$max *10* $pit);//Column height
$current _date = substr ($date [$j],5,5);
$current _date. = substr ($date [$j],8,2);
Imagerectangle ($image,
$l _b_x+ $j * $pit _x+1,
$l _b_y,
$l _b_x+ ($j + 1) * $pit _x-2,
$l _b_y-$d _h,
$black _color);
Coloring a rectangle
$current _color = $data [$j]>0? $color _big: $color _small;
Imagefilltoborder ($image,
$l _b_x+ $j * $pit _x+1 + floor ($pit _X/2),
$l _b_y-floor ($d _h/2),
$black _color,
$current _color);
Write Date
/*imagestring ($image,
$chartfont,
$l _b_x+ $j * $pit _x,
$l _b_y+2,
$current _date,
$black _color); * *
Imagettftext ($image, 8,90, $l _b_x+ $j * $pit _x+10, $l _b_y-$d _h, $black _color, $font, $current _date);
}
if ($path! = "")
Imagegif ($image, $path);
else Imagegif ($image);
Imagedestroy ($image);
}//drawing function Ends
Output the resulting picture
/*

Header ("Content-type:image/gif");
$my _colors[] = array (0xff,0x00,0x00);
$my _colors[] = array (0x00,0xff,0x00);
Draw (600,400,array (1066565650,-40345340,50343433440,1834340,50343230,-8023454230,600,7232323300,-836), $my _ colors,0, ' textbook Great Aston '); * *
Draw (600,400,array (1066,-4040,5040,1840,5030,-8230,600,7232,-836), $my _colors,0, ' textbook Great Aston ');
?>

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http://www.bkjia.com/PHPjc/633000.html www.bkjia.com true http://www.bkjia.com/PHPjc/633000.html techarticle This program implements PHP histogram//Its design idea is: first to use Imagecreate () to generate a blank graph, its program implementation is as follows://need two different colors, positive one ...

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