source: other-projects/nz-flag-design/trunk/similarity-2d/index.jsp@ 29968

Last change on this file since 29968 was 29784, checked in by davidb, 9 years ago

Changes resulting from developing the aspect-ration JSON JSP script
File size: 6.8 KB
Line 
1<%@ page contentType="text/html; charset=UTF-8" %>
2<!DOCTYPE html>
3<html>
4 <head>
5 <meta charset="utf-8"/>
6 </head>
7
8
9 <body>
10
11 <div style="display: none;">
12
13 <script>
14 // Set up a fallback position in case this page is accessed outside of a JSP context
15 // (i.e., the JSP blocks aren't executed)
16 var img_list = [ "import/nz.gif" ];
17 </script>
18
19 <%@ page import="java.io.*,java.util.*,java.awt.image.*,javax.imageio.*" %>
20
21 <%!
22 public int GCD(int a, int b) {
23 if (b==0) return a;
24 return GCD(b,a%b);
25 }
26
27 ArrayList<File> listFilesForFolder(final File folder, String matchExt) {
28 ArrayList<File> fileList = new ArrayList<File>();
29
30 for (final File fileEntry : folder.listFiles()) {
31 if (fileEntry.isDirectory()) {
32 listFilesForFolder(fileEntry,matchExt);
33 } else {
34 if (fileEntry.getName().toLowerCase().endsWith(matchExt)) {
35 fileList.add(fileEntry);
36 }
37 }
38 }
39
40 return fileList;
41 }
42
43
44
45 public static Map<String, Integer> sortByComparator(Map<String, Integer> unsortMap)
46 {
47
48 // Convert Map to List
49 List<Map.Entry<String, Integer>> list
50 = new LinkedList<Map.Entry<String, Integer>>(unsortMap.entrySet());
51
52 // Sort list with comparator, to compare the Map values
53 Collections.sort(list, new Comparator<Map.Entry<String, Integer>>() {
54 public int compare(Map.Entry<String, Integer> o1,
55 Map.Entry<String, Integer> o2) {
56 return (o2.getValue()).compareTo(o1.getValue());
57 }
58 });
59
60 // Convert sorted map back to a Map
61 Map<String, Integer> sortedMap = new LinkedHashMap<String, Integer>();
62 for (Iterator<Map.Entry<String, Integer>> it = list.iterator(); it.hasNext();) {
63 Map.Entry<String, Integer> entry = it.next();
64 sortedMap.put(entry.getKey(), entry.getValue());
65 }
66
67 return sortedMap;
68 }
69/*
70 public static void printMap(Map<String, Integer> map)
71 {
72 for (Map.Entry<String, Integer> entry : map.entrySet()) {
73 out.println("[Key] : " + entry.getKey()
74 + " [Value] : " + entry.getValue() + "br />");
75 }
76 }
77 */
78
79
80 %>
81
82
83 <%
84
85 String docBase = getServletContext().getRealPath("/");
86 File similarityDir = new File(docBase,"similarity-2d");
87
88 String imagesStr = (request.getParameter("imagesDir")!=null) ? request.getParameter("imagesDir") : "import";
89 File imagesDir = new File(similarityDir,imagesStr);
90
91 File aspectRatioFile = new File(similarityDir,"flag-aspect-ratio.json");
92
93 ArrayList<File> imageFileList = listFilesForFolder(imagesDir,".gif");
94
95 File imageUrlBase = new File(imagesStr);
96
97 String action = request.getParameter("action");
98
99 if ((action != null) && action.equals("ratios")) {
100
101 if (!aspectRatioFile.exists()) {
102 Map<String, Integer> ratioFreq = new HashMap<String, Integer>();
103 Map<String, ArrayList<File>> ratioList = new HashMap<String, ArrayList<File>>();
104
105 for (final File fileEntry : imageFileList) {
106
107 //out.println("flag " + fileEntry.getName());
108
109 BufferedImage bimg = ImageIO.read(fileEntry);
110 int width = bimg.getWidth();
111 int height = bimg.getHeight();
112 int gcd = GCD(width,height);
113
114 int gcd_width = width / gcd;
115 int gcd_height = height / gcd;
116
117 if ((gcd_width>50) || (gcd_height>50)) {
118 int rough_width = (gcd_width+99)/100;
119 int rough_height = (gcd_height+99)/100;
120
121 int rough_gcd = GCD(rough_width,rough_height);
122
123 gcd_width = rough_width / rough_gcd;
124 gcd_height = rough_height / rough_gcd;
125 }
126
127 String ratioStr = gcd_width + ":" + gcd_height;
128
129 if (!ratioFreq.containsKey(ratioStr)) {
130 ratioFreq.put(ratioStr,1);
131 ratioList.put(ratioStr,new ArrayList<File>());
132 }
133 else {
134 ratioFreq.put(ratioStr,ratioFreq.get(ratioStr)+1);
135 ratioList.get(ratioStr).add(fileEntry);
136 }
137
138 //double ratio = (double)width/(double)height;
139
140 //out.println(width + " x " + height + " ratio: " + ratioStr);
141 //out.println("<br/>");
142
143
144 }
145
146 try {
147
148 FileWriter foutFileWriter = new FileWriter(aspectRatioFile);
149 PrintWriter fout = new PrintWriter(foutFileWriter);
150
151 //out.println("<script>");
152 //out.print("var flagsRatioFreq = ");
153 fout.println("{");
154
155 Map<String, Integer> sortedRatioFreq = sortByComparator(ratioFreq);
156 //printMap(sortedRatioFreq);
157 int c = 0;
158
159 for (Map.Entry<String, Integer> entry : sortedRatioFreq.entrySet()) {
160 //out.println("[Key] : " + entry.getKey()
161 // + " [Value] : " + entry.getValue() + "<br />");
162
163 String ratio_key = entry.getKey();
164 Integer ratio_freq = entry.getValue();
165
166 if (ratio_freq>1) {
167 if (c>0) {
168 fout.print(", ");
169 }
170 fout.println("\"" + ratio_key + "\" : ");
171 fout.println(" { \"freq\" : " + entry.getValue());
172
173 ArrayList<File> flag_list = ratioList.get(ratio_key);
174 int flag_list_len = flag_list.size();
175
176 fout.print(" ,\"flags\" : [");
177 for (int i=0; i<flag_list_len; i++) {
178 if (i>0) {
179 fout.print(", ");
180 }
181
182 String flag_file_str = imageUrlBase + "/" + flag_list.get(i).getName();
183
184 fout.print("\""+flag_file_str+"\"");
185 }
186 fout.println("]");
187 fout.println(" }");
188
189 c++;
190 }
191 }
192 fout.println("}");
193
194 //out.print(";");
195 //out.println("</script>");
196 fout.close();
197
198/*
199 // Print out frequency counts
200 Iterator<String> keyIterator = ratioFreq.keySet().iterator();
201
202 while (keyIterator.hasNext()){
203 String key = keyIterator.next();
204 Integer freq = ratioFreq.get(key);
205 out.println(key + ": " + freq + "<br />");
206 }
207*/
208
209 }
210 catch (IOException e) {
211 e.printStackTrace();
212 }
213
214 }
215 }
216 else {
217 out.println("<script>");
218 out.println("var dynamic_img_list = [ ");
219 boolean first_entry = true;
220 for (final File fileEntry : imageFileList) {
221 String flagImageUrl = imageUrlBase + "/" + fileEntry.getName();
222
223 //out.println("<img src=\"" + flagImageUrl + "\">");
224 if (first_entry) {
225 out.println("\"" + flagImageUrl + "\"");
226 first_entry = false;
227 }
228 else {
229 out.println(",\"" + flagImageUrl + "\"");
230 }
231 }
232 out.println("];");
233
234 out.println("img_list = dynamic_img_list;");
235
236 out.println("</script>");
237 }
238
239
240 %>
241
242 </div>
243
244 <script>
245
246 var i;
247 for (i=0; i<img_list.length; i++) {
248 document.write("<img src=\"" + img_list[i] + "\" style=\"padding: 4px;\">\n");
249 }
250
251 </script>
252
253 </body>
254
255</html>
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