> 백엔드 개발 > PHP 튜토리얼 > PHP GD 라이브러리를 사용하여 24시간 히스토그램을 그리는 예제 코드

PHP GD 라이브러리를 사용하여 24시간 히스토그램을 그리는 예제 코드

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풀어 주다: 2016-07-25 08:55:34
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  1. /*

  2. 24시간 막대 차트
  3. 작성자: taokey
  4. QQ: 29611705
  5. * 편집자: bbs.it-home.org
  6. */

  7. function h24($str){

  8. $hour = 폭발(",", $ str);
  9. $hmax = max($hour);
  10. $ppix = 150/$hmax;

  11. //히스토그램 높이 계산

  12. $h0 = 190-$hour[0]*$ppix;
  13. $h1 = 190-$hour[1]*$ppix;
  14. $h2 = 190-$hour[2]*$ppix;
  15. $h3 = 190-$시간[3]*$ppix;
  16. $h4 = 190-$시간[4]*$ppix;
  17. $h5 = 190-$시간[5]*$ppix;
  18. $ h6 = 190-$시간[6]*$ppix;
  19. $h7 = 190-$시간[7]*$ppix;
  20. $h8 = 190-$시간[8]*$ppix;
  21. $h9 = 190-$시간[9]*$ppix;
  22. $h10 = 190-$시간[10]*$ppix;
  23. $h11 = 190-$시간[11]*$ppix ;
  24. $h12 = 190-$시간[12]*$ppix;
  25. $h13 = 190-$시간[13]*$ppix;
  26. $h14 = 190-$시간[14]*$ ppix;
  27. $h15 = 190-$시간[15]*$ppix;
  28. $h16 = 190-$시간[16]*$ppix;
  29. $h17 = 190-$시간[17]* $ppix;
  30. $h18 = 190-$시간[18]*$ppix;
  31. $h19 = 190-$시간[19]*$ppix;
  32. $h20 = 190-$시간[20] *$ppix ;
  33. $h21 = 190-$시간[21]*$ppix;
  34. $h22 = 190-$시간[22]*$ppix;
  35. $h23 = 190-$시간[23 ]*$ ppix;

  36. //img 만들기

  37. $img = imagecreate(755,210);
  38. //배경
  39. $bgc = imagecolorallocate ($img, 245, 250 , 254);
  40. //검정색
  41. $bc = imagecolorallocate($img,0,0,0);
  42. //세로축 그리기
  43. imageline($img,15,30 ,15,189, $bc);
  44. //가로축 그리기
  45. imageline($img,15,190,750,190, $bc);

  46. //세로축 점 그리기

  47. for($ i=39,$j=10;$i<189;$i=$i 15,$j--){
  48. imageline($img,13,$i,15,$i, $bc);
  49. imagestring($img,1,1,$i-4,$j."x", $bc);
  50. }

  51. 가로축 점 그리기

  52. $t = true;
  53. for($i=31,$j=29;$i<750;$i=$j 1,$j=$j 15){
  54. if($t) {
  55. $x=$i;
  56. $t=false;
  57. }else{
  58. $x=$i 1;
  59. $t=true;
  60. }
  61. 이미지라인($img,$x,190,$x,192, $bc);
  62. }
  63. //竖轴标记
  64. $x = ceil($hmax/10);
  65. imagestring($img,2,10,15,"X=".$x,$bc);
  66. //竖轴标记

  67. //0点

  68. $color = imagecolorallocate($img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
  69. imagefilled직사각형($img,31,$h0,45,189,$color);
  70. imagestring($img,1,31,$h0-10,$hour[0],$color);
  71. imagechar ($img,1,36,195,0,$bc);

  72. //1点

  73. $color = imagecolorallocate($img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
  74. imagefilled직사각형($img,61,$h1,75,189,$color);
  75. imagestring($img,1,61,$h1-10,$hour[1],$color);
  76. imagechar ($img,1,66,195,1,$bc);

  77. //2点

  78. $color = imagecolorallocate($img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
  79. imagefilled직사각형($img,91,$h2,105,189,$color);
  80. imagestring($img,1,91,$h2-10,$hour[2],$color);
  81. imagechar ($img,1,96,195,2,$bc);

  82. //3点

  83. $color = imagecolorallocate($img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
  84. imagefilled직사각형($img,121,$h3,135,189,$color);
  85. imagestring($img,1,121,$h3-10,$hour[3],$color);
  86. imagechar($ img,1,126,195,3,$bc);

  87. //4点

  88. ​​$color = imagecolorallocate($img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
  89. imagefilled직사각형($img,151,$h4,165,189,$color);
  90. imagestring($img,1,151,$h4-10,$hour[4],$color);
  91. imagechar($ img,1,156,195,4,$bc);

  92. //5点

  93. $color = imagecolorallocate($img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
  94. imagefilled직사각형($img,181,$h5,195,189,$color);
  95. imagestring($img,1,181,$h5-10,$hour[5],$color);
  96. imagechar($ img,1,186,195,5,$bc);

  97. //6点

  98. $color = imagecolorallocate($img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
  99. imagefilled직사각형($img,211,$h6,225,189,$color);
  100. imagestring($img,1,211,$h6-10,$hour[6],$color);
  101. imagechar($ img,1,216,195,6,$bc);

  102. //7点

  103. $color = imagecolorallocate($img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
  104. imagefilled직사각형($img,241,$h7,255,189,$color);
  105. imagestring($img,1,241,$h7-10,$hour[7],$color);
  106. imagechar($ img,1,246,195,7,$bc);

  107. //8点

  108. $color = imagecolorallocate($img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
  109. imagefilled직사각형($img,271,$h8,285,189,$color);
  110. imagestring($img,1,271,$h8-10,$hour[8],$color);
  111. imagechar($ img,1,276,195,8,$bc);

  112. //9点

  113. $color = imagecolorallocate($img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
  114. imagefilled직사각형($img,301,$h9,315,189,$color);
  115. imagestring($img,1,301,$h9-10,$hour[9],$color);
  116. imagechar($ img,1,306,195,9,$bc);

  117. //10点

  118. $color = imagecolorallocate($img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
  119. imagefilled직사각형($img,331,$h10,345,189,$color);
  120. imagestring($img,1,331,$h10-10,$hour[10],$color);
  121. imagestring($ img,1,334,195,10,$bc);

  122. //11点

  123. $color = imagecolorallocate($img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
  124. imagefilled직사각형($img,361,$h11,375,189,$color);
  125. imagestring($img,1,361,$h11-10,$hour[11],$color);
  126. imagestring($ img,1,364,195,11,$bc);

  127. //12点

  128. $color = imagecolorallocate($img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
  129. imagefilled직사각형($img,391,$h12,405,189,$color);
  130. imagestring($img,1,391,$h12-10,$hour[12],$color);
  131. imagestring($ img,1,394,195,12,$bc);

  132. //13点

  133. $color = imagecolorallocate($img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
  134. imagefilled직사각형($img,421,$h13,435,189,$color);
  135. imagestring($img,1,421,$h13-10,$hour[13],$color);
  136. imagestring($ img,1,424,195,13,$bc);

  137. //14点

  138. ​​$color = imagecolorallocate($img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
  139. imagefilled직사각형($img,451,$h14,465,189,$color);
  140. imagestring($img,1,451,$h14-10,$hour[14],$color);
  141. imagestring($ img,1,454,195,14,$bc);

  142. //15点

  143. $color = imagecolorallocate($img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
  144. imagefilled직사각형($img,481,$h15,495,189,$color);
  145. imagestring($img,1,481,$h15-10,$hour[15],$color);
  146. imagestring($ img,1,481,195,15,$bc);

  147. //16点

  148. $color = imagecolorallocate($img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
  149. imagefilled직사각형($img,511,$h16,525,189,$color);
  150. imagestring($img,1,511,$h16-10,$hour[16],$color);
  151. imagestring($ img,1,511,195,16,$bc);

  152. //17点

  153. $color = imagecolorallocate($img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
  154. imagefilled직사각형($img,541,$h17,555,189,$color);
  155. imagestring($img,1,541,$h17-10,$hour[17],$color);
  156. imagestring($ img,1,544,195,17,$bc);

  157. //18点

  158. $color = imagecolorallocate($img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
  159. imagefilled직사각형($img,571,$h18,585,189,$color);
  160. imagestring($img,1,571,$h18-10,$hour[18],$color);
  161. imagestring($ img,1,571,195,18,$bc);

  162. //19点

  163. $color = imagecolorallocate($img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
  164. imagefilled직사각형($img,601,$h19,615,189,$color);
  165. imagestring($img,1,601,$h19-10,$hour[19],$color);
  166. imagestring($ img,1,604,195,19,$bc);

  167. //20点

  168. $color = imagecolorallocate($img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
  169. imagefilled직사각형($img,631,$h20,645,189,$color);
  170. imagestring($img,1,631,$h20-10,$hour[20],$color);
  171. imagestring($ img,1,634,195,20,$bc);

  172. //21点

  173. $color = imagecolorallocate($img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
  174. imagefilled직사각형($img,661,$h21,675,189,$color);
  175. imagestring($img,1,661,$h21-10,$hour[21],$color);
  176. imagestring($ img,1,664,195,21,$bc);

  177. //22点

  178. $color = imagecolorallocate($img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
  179. imagefilled직사각형($img,691,$h22,705,189,$color);
  180. imagestring($img,1,691,$h22-10,$hour[22],$color);
  181. imagestring($ img,1,694,195,22,$bc);

  182. //23点

  183. $color = imagecolorallocate($img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
  184. imagefilled직사각형($img,721,$h23,735,189,$color);
  185. imagestring($img,1,721,$h23-10,$hour[23],$color);
  186. imagestring($ img,1,724,195,23,$bc);

  187. //加个边框 加了之后不好看

  188. //imageRectangle($img, 0, 0, 754, 209, $bc);

  189. imagepng($img);

  190. imagedestroy($img);
  191. }
  192. $str = isset($_GET['str'])?$_GET['str']:"";
  193. if($str){
  194. h24($str);
  195. }
  196. ?>

复代码


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