php 数据统计图类实例代码详解

2. /***
3. * 时间 2010-8-9
4. * www.ite5e.com
5. * 注意:如有什么问题可以回帖。
6. * 程序最底下有调用测试代码。
7. ***/
8. define("DEFAULT_FONT_PATH", "c:/windows/fonts/simhei.ttf");
9. class barbarism
10. {
11. private $_x;
12. private $_y;
13. private $_h;
14. public $_l = 50;
15. private $_w = null;
16. private $_srcPoints = array();
17. private $_points = array();
19. public function __construct($x, $y, $h, $l = 50, $w = null)
20. {
21. $this->_x = $x;
22. $this->_y = $y;
23. $this->_h = $h;
24. $this->_l = $l;
25. $this->_w = $w;
26. $this->_srcPoints = $this->getSrcPoints();
27. $this->_points = $this->getPoints();
28. }
30. public function getSrcPoints()
31. {
32. return array(
33. array($this->_x , $this->_y),
34. array($this->_x $this->_l , $this->_y),
35. array($this->_x (1.35*$this->_l), $this->_y-(0.35*$this->_l)),
36. array($this->_x (0.35*$this->_l), $this->_y-(0.35*$this->_l)),
37. array($this->_x , $this->_y $this->_h),
38. array($this->_x $this->_l , $this->_y $this->_h),
39. array($this->_x (1.35*$this->_l), $this->_y $this->_h-(0.35*$this->_l))
40. );
41. }
43. public function getPoints()
44. {
45. $points = array();
46. foreach($this->_srcPoints as $key => $val)
47. {
48. $points[] = $val[0];
49. $points[] = $val[1];
50. }
51. return $points;
52. }
54. public function getTopPoints()
55. {
56. return array_slice($this->_points, 0, 8); //顶坐标
57. }
59. public function getBelowPoints()
60. {
61. return array_merge(array_slice($this->_points, 0, 2), array_slice($this->_points, 8, 4), array_slice($this->_points, 2, 2)); //下坐标
62. }
64. public function getRightSidePoints()
65. {
66. return array_merge(array_slice($this->_points, 2, 2), array_slice($this->_points, 10, 4), array_slice($this->_points, 4, 2)); //右侧坐标
67. }
69. public function draw($image, $topColor, $belowColor, $sideColor, $borderColor = null, $type = LEFT)
70. {
71. if (is_null($borderColor))
72. {
73. $borderColor = 0xcccccc;
74. }
76. $top_rgb = $this->getRGB($topColor);
77. $below_rgb = $this->getRGB($belowColor);
78. $side_rgb = $this->getRGB($sideColor);
79. $top_color = imagecolorallocate($image, $top_rgb[R], $top_rgb[G], $top_rgb[B]);
80. $below_color = imagecolorallocate($image, $below_rgb[R], $below_rgb[G], $below_rgb[B]);
81. $side_color = imagecolorallocate($image, $side_rgb[R], $side_rgb[G], $side_rgb[B]);
83. imagefilledpolygon($image, $this->getTopPoints(), 4, $top_color); //画顶面
84. imagepolygon($image, $this->getTopPoints(), 4, $borderColor); //画顶面边线
86. imagefilledpolygon($image, $this->getBelowPoints(), 4, $below_color); //画下面
87. imagepolygon($image, $this->getBelowPoints(), 4, $borderColor); //画下面边线
89. if ($type == LEFT)
90. {
91. imagefilledpolygon($image, $this->getRightSidePoints(), 4, $side_color); //画右侧面
92. imagepolygon($image, $this->getRightSidePoints(), 4, $borderColor); //画侧面边线
93. }
94. }
96. public function getRGB($color)
97. {
98. $ar = array();
99. $color = hexdec($color);
100. $ar[R] = ($color>>16) & 0xff;
101. $ar[G] = ($color>>8) & 0xff;
102. $ar[B] = ($color) & 0xff;
103. return $ar;
104. }
105. }
107. class Bardate
108. {
109. private $_W;
110. private $_H;
111. private $_bgColor = "ffffff";
112. private $_barHeights = array();
113. private $_barTexts = array();
114. private $_barColors = array();
115. public $_title;
116. public $_paddingTop = 30;
117. public $_paddingBottom = 100;
118. public $_paddingLeft = 45;
119. public $_paddingRight = 2;
120. public $_barL = 50;
121. public $image;