1. <?php
2. /*******************用法*************************
3. $gg=new build_graph();
4. $d1=array(0,62,25,20,20,100,99); //曲线一
5. //$d1=array('15'=>5,'16'=>8,'17'=>7,'18'=>9,'19'=>10,'20'=>15,'21'=>9); 改成这个形式啦
6. $d2=array(0,80,75,65,100,56,79); //曲线二
7. $d3=array(0,60,50,25,12,56,45); //曲线三 一下可以继续以此类推
8. $gg->add_data($d1);
9. $gg->add_data($d2);
10. $gg->add_data($d3);
11. $gg->set_colors("ee00ff,dd8800,00ff00"); //对应曲线的颜色
12. //生成曲线图
13. $gg->build("line",0); //参数0表示显示所有曲线，1为显示第一条，依次类推
14. //生成矩形图
15. //$gg->build("rectangle","2"); //参数0表示显示第一个矩形，1也为显示第一条，其余依次类推
16. ///////////////////////////////////////////////////////////
17. //自定义图形显示，可任意图形叠加显示
18. header("Content-type: image/png");
19. $gg->create_cloths(); //画布
20. $gg->create_frame(); //画个框先
21. //$gg->build_rectangle(2); //画矩形
22. $gg->create_line(); //画线
23. $gg->build_line(0); //画曲线
24. imagepng($gg->image);
25. imagedestroy($gg->image);
26. */
27. class build_graph {
28. var $graphwidth=300;
29. var $graphheight=300;
30. var $width_num=0; //宽分多少等分
31. var $height_num=10; //高分多少等分，默认为10
32. var $height_var=0; //高度增量（用户数据平均数）
33. var $width_var=0; //宽度增量（用户数据平均数）
34. var $height_max=0; //最大数据值
35. var $array_data=array(); //用户待分析的数据的二维数组
36. var $array_error=array(); //收集错误信息
37. var $colorBg=array(255,255,255); //图形背景-白色
38. var $colorGrey=array(192,192,192); //灰色画框
39. var $colorBlue=array(0,0,255); //蓝色
40. var $colorRed=array(255,0,0); //红色（点）
41. var $colorDarkBlue=array(0,0,255); //深色
42. var $colorLightBlue=array(200,200,255); //浅色
43. var $array_color; //曲线着色（存储十六进制数）
44. var $image; //我们的图像
45. //方法：接受用户数据
46. function add_data($array_user_data)
47. {
48. if(!is_array($array_user_data) or emptyempty($array_user_data))
49. {
50. $this->array_error['add_data']="没有可供分析的数据";
51. return false;
52. exit();
53. }
54. $i=count($this->array_data);
55. $this->array_data[$i]=$array_user_data;
56. }
57. //方法：定义画布宽和长
58. function set_img($img_width,$img_height){
59. $this->graphwidth=$img_width;
60. $this->graphheight=$img_height;
61. }
62. //设定Y轴的增量等分，默认为10份
63. function set_height_num($var_y){
64. $this->height_num=$var_y;
65. }
66. //定义各图形各部分色彩
67. function get_RGB($color){ //得到十进制色彩
68. $R=($color>>16) & 0xff;
69. $G=($color>>8) & 0xff;
70. $B=($color) & 0xff;
71. return (array($R,$G,$B));
72. }
73. //---------------------------------------------------------------
74. #定义背景色
75. function set_color_bg($c1,$c2,$c3){
76. $this->colorBg=array($c1,$c2,$c3);
77. }
78. #定义画框色
79. function set_color_Grey($c1,$c2,$c3){
80. $this->colorGrey=array($c1,$c2,$c3);
81. }
82. #定义蓝色
83. function set_color_Blue($c1,$c2,$c3){
84. $this->colorBlue=array($c1,$c2,$c3);
85. }
86. #定义色Red
87. function set_color_Red($c1,$c2,$c3){
88. $this->colorRed=array($c1,$c2,$c3);
89. }
90. #定义深色
91. function set_color_DarkBlue($c1,$c2,$c3){
92. $this->colorDarkBlue=array($c1,$c2,$c3);
93. }
94. #定义浅色
95. function set_color_LightBlue($c1,$c2,$c3){
96. $this->colorLightBlue=array($c1,$c2,$c3);
97. }
98. //---------------------------------------------------------------
99. //方法:由用户数据将画布分成若干等份宽
100. //并计算出每份多少像素
101. function get_width_num(){
102. $this->width_num=count($this->array_data[0]);
103. }
104. function get_max_height(){
105. //获得用户数据的最大值
106. $tmpvar=array();
107. foreach($this->array_data as $tmp_value)
108. {
109. $tmpvar[]=max($tmp_value);
110. }
111. $this->height_max=max($tmpvar);
112. return max($tmpvar);
113. }
114. function get_height_length(){
115. //计算出每格的增量长度(用户数据，而不是图形的像素值)
116. $max_var=$this->get_max_height();
117. $max_var=round($max_var/$this->height_num);
118. $first_num=substr($max_var,0,1);
119. if(substr($max_var,1,1)){
120. if(substr($max_var,1,1)>=5)
121. $first_num+=1;
122. }
123. for($i=1;$i<strlen($max_var);$i++){
124. $first_num.="0";
125. }
126. return (int)$first_num;
127. }
128. function get_var_wh() //得到高和宽的增量
129. {
130. $this->get_width_num();
131. //得到高度增量和宽度增量
132. $this->height_var=$this->get_height_length();
133. $this->width_var=round($this->graphwidth/$this->width_num);
134. }
135. function set_colors($str_colors){
136. //用于多条曲线的不同着色，如$str_colors="ee00ff,dd0000,cccccc"
137. $this->array_color=split(",",$str_colors);
138. }
139. ######################################################################################################
140. function build_line($var_num)
141. {
142. if(!emptyempty($var_num))
143. { //如果用户只选择显示一条曲线
144. $array_tmp[0]=$this->array_data[$var_num-1];
145. $this->array_data=$array_tmp;
146. }
147. //画线
148. for($j=0;$j<count($this->array_data);$j++)
149. {
150. list($R,$G,$B)=$this->get_RGB(hexdec($this->array_color[$j]));
151. $colorBlue=imagecolorallocate($this->image,$R,$G,$B);
152. $i=0;
153. foreach($this->array_data[$j] as $keys=>$values)
154. {
155. $height_next_pix[]=round($this->array_data[$j][$keys]/$this->height_max*$this->graphheight);
156. }
157. foreach($this->array_data[$j] as $key=>$value)
158. {
159. $height_pix=round(($this->array_data[$j][$key]/$this->height_max)*$this->graphheight);
160. if($i!=count($this->array_data[$j])-1)
161. {
162. imageline($this->image,$this->width_var*$i,$this->graphheight-$height_pix,$this->width_var*($i+1),$this->graphheight-$height_next_pix[$i+1],$colorBlue);
163. }
164. $i++;
165. }
166. //print_r($height_next_pix);
167. // exit;
168. /*
169. for($i=0;$i<$this->width_num-1;$i++)
170. {
171. $height_pix=round(($this->array_data[$j][$i]/$this->height_max)*$this->graphheight);
172. $height_next_pix=round($this->array_data[$j][$i+1]/$this->height_max*$this->graphheight);
173. imageline($this->image,$this->width_var*$i,$this->graphheight-$height_pix,$this->width_var*($i+1),$this->graphheight-$height_next_pix,$colorBlue);
174. }*/
175. }
176. //画点
177. $colorRed=imagecolorallocate($this->image, $this->colorRed[0], $this->colorRed[1], $this->colorRed[2]);
178. for($j=0;$j<count($this->array_data);$j++)
179. {
180. $i=0;
181. foreach($this->array_data[$j] as $key=>$value)
182. {
183. $height_pix=round(($this->array_data[$j][$key]/$this->height_max)*$this->graphheight);
184. imagearc($this->image,$this->width_var*$i,$this->graphheight-$height_pix,6,5,0,360,$colorRed);
185. imagefilltoborder($this->image,$this->width_var*$i,$this->graphheight-$height_pix,$colorRed,$colorRed);
186. $i++;
187. }
188. /*
189. for($i=0;$i<$this->width_num;$i++)
190. {
191. $height_pix=round(($this->array_data[$j][$i]/$this->height_max)*$this->graphheight);
192. imagearc($this->image,$this->width_var*$i,$this->graphheight-$height_pix,6,5,0,360,$colorRed);
193. imagefilltoborder($this->image,$this->width_var*$i,$this->graphheight-$height_pix,$colorRed,$colorRed);
194. }
195. */
196. }
197. }
198. ######################################################################################################
199. function build_rectangle($select_gra){
200. if(!emptyempty($select_gra)){ //用户选择显示一个矩形
201. $select_gra-=1;
202. }
203. //画矩形
204. //配色
205. $colorDarkBlue=imagecolorallocate($this->image, $this->colorDarkBlue[0], $this->colorDarkBlue[1], $this->colorDarkBlue[2]);
206. $colorLightBlue=imagecolorallocate($this->image, $this->colorLightBlue[0], $this->colorLightBlue[1], $this->colorLightBlue[2]);
207. if(emptyempty($select_gra))
208. $select_gra=0;
209. for($i=0; $i<$this->width_num; $i++){
210. $height_pix=round(($this->array_data[$select_gra][$i]/$this->height_max)*$this->graphheight);
211. imagefilledrectangle($this->image,$this->width_var*$i,$this->graphheight-$height_pix,$this->width_var*($i+1),$this->graphheight, $colorDarkBlue);
212. imagefilledrectangle($this->image,($i*$this->width_var)+1,($this->graphheight-$height_pix)+1,$this->width_var*($i+1)-5,$this->graphheight-2, $colorLightBlue);
213. }
214. }
215. ######################################################################################################
216. function create_cloths(){
217. //创建画布
218. $this->image=imagecreate($this->graphwidth+20,$this->graphheight+20);
219. }
220. function create_frame(){
221. //创建画框
222. $this->get_var_wh();
223. //配色
224. $colorBg=imagecolorallocate($this->image, $this->colorBg[0], $this->colorBg[1], $this->colorBg[2]);
225. $colorGrey=imagecolorallocate($this->image, $this->colorGrey[0], $this->colorGrey[1], $this->colorGrey[2]);
226. //创建图像周围的框
227. imageline($this->image, 0, 0, 0, $this->graphheight,$colorGrey);
228. imageline($this->image, 0, 0, $this->graphwidth, 0,$colorGrey);
229. imageline($this->image, ($this->graphwidth-1),0,($this->graphwidth-1),($this->graphheight-1),$colorGrey);
230. imageline($this->image, 0,($this->graphheight-1),($this->graphwidth-1),($this->graphheight-1),$colorGrey);
231. }
232. function create_line()
233. {//开源代码phpfensi.com
234. //创建网格。
235. $this->get_var_wh();
236. $colorBg=imagecolorallocate($this->image, $this->colorBg[0], $this->colorBg[1], $this->colorBg[2]);
237. $colorGrey=imagecolorallocate($this->image, $this->colorGrey[0], $this->colorGrey[1], $this->colorGrey[2]);
238. $colorRed=imagecolorallocate($this->image, $this->colorRed[0], $this->colorRed[1], $this->colorRed[2]);
239. for($i=1;$i<=$this->height_num;$i++)
240. {
241. //画横线
242. $y1=($this->graphheight-($this->height_var/$this->height_max*$this->graphheight)*$i);
243. $y2=($this->graphheight-($this->height_var/$this->height_max*$this->graphheight)*$i);
244. imageline($this->image,0,$y1,$this->graphwidth,$y2,$colorGrey);
245. //标出数字
246. imagestring($this->image,2,0,$this->graphheight-($this->height_var/$this->height_max*$this->graphheight)*$i,$this->height_var*$i,$colorRed);
247. }
248. unset($i);
249. foreach($this->array_data[0] as $key=>$value)
250. {
251. //画竖线
252. imageline($this->image,$this->width_var*$i,0,$this->width_var*$i,$this->graphwidth,$colorGrey);
253. //标出数字
254. imagestring($this->image,2,$this->width_var*$i,$this->graphheight-15,$key,$colorRed);
255. $i++;
256. }
257. /*
258. for($i=1;$i<=$this->width_num;$i++)
259. {
260. //画竖线
261. imageline($this->image,$this->width_var*$i,0,$this->width_var*$i,$this->graphwidth,$colorGrey);
262. //标出数字
263. imagestring($this->image,2,$this->width_var*$i,$this->graphheight-15,$i,$colorRed);
264. }
265. */
266. }
267. function build($graph,$str_var){
268. //$graph是用户指定的图形种类,$str_var是生成哪个数据的图
269. header("Content-type: image/jpeg");
270. $this->create_cloths(); //先要有画布啊~~
271. switch ($graph){
272. case "line":
273. $this->create_frame(); //画个框先：）
274. $this->create_line(); //打上底格线
275. $this->build_line($str_var); //画曲线
276. break;
277. case "rectangle":
278. $this->create_frame(); //画个框先：）
279. $this->build_rectangle($str_var); //画矩形
280. $this->create_line(); //打上底格线
281. break;
282. }
283. //输出图形并清除内存
284. imagepng($this->image);
285. imagedestroy($this->image);
286. }
287. }
288. ?>