Changes between Initial Version and Version 1 of BossaExampleFour

Timestamp:

Jul 31, 2008, 1:49:35 PM (16 years ago)

Author:

davea

Comment:

--

BossaExampleFour

@@ +1 @@
+= Example 4: a more complex application =
+
+In this application, volunteers locate fossils in images of desert terrain.
+They can locate several (zero or more) fossils in the same image,
+and can associate a type and a comment with each annotation.
+They can remove existing annotations.
+When they're all done, they click a "Done" button.
+
+This is implemented as a sequence of web pages;
+each addition or deletion of an annotation goes to a new web page.
+Hence, in addition to the '''job_show()''' callback function,
+the application uses a separate web page, '''user/bossa_example4.php''',
+that handles the edit operations.
+
+The application is implemented by three scripts in ~/projects/test/html/:
+
+ * [source:/trunk/boinc/html/ops/bossa_example4_make_jobs.php ops/bossa_example4_make_jobs.php]: a script that creates jobs.
+ * [source:/trunk/boinc/html/inc/bossa_example4.inc inc/bossa_example4.inc]: the application's callback functions.
+ * [source:/trunk/boinc/html/user/bossa_example4.php user/bossa_example4.php]: the handler for editing operations.
+
+== Creating jobs ==
+
+Using the administrative interface, create an application named "bossa_example4".
+Create a directory '''~/projects/test/html/user/example4_images'''.
+Put some images (.png or .jpg) there; a good source is
+http://isaac.ssl.berkeley.edu/test/example4_images/
+
+Now go to the project's ops/ directory and type
+
+{{{
+php bossa_example4_make_jobs.php --dir example4_images
+}}}
+
+==