Re: [Zorba-coders] [Merge] lp:~zorba-coders/zorba/bug867259 into lp:zorba

2013-04-24 Thread William Candillon
Review: Approve


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Re: [Zorba-coders] [Merge] lp:~zorba-coders/zorba/bug867259 into lp:zorba

2013-04-24 Thread William Candillon
Looks great!
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Re: [Zorba-coders] [Merge] lp:~zorba-coders/zorba/bug867259 into lp:zorba

2013-04-24 Thread Rodolfo Ochoa
Review: Approve


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[Zorba-coders] [Merge] lp:~zorba-coders/zorba/bug867259 into lp:zorba

2013-04-24 Thread Rodolfo Ochoa
The proposal to merge lp:~zorba-coders/zorba/bug867259 into lp:zorba has been 
updated.

Status: Needs review = Approved

For more details, see:
https://code.launchpad.net/~zorba-coders/zorba/bug867259/+merge/160515
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[Zorba-coders] [Merge] lp:~zorba-coders/zorba/bug867259 into lp:zorba

2013-04-24 Thread Zorba Build Bot
Validation queue starting for merge proposal.
Log at: 
http://zorbatest.lambda.nu:8080/remotequeue/bug867259-2013-04-24T11-56-52.859Z/log.html
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[Zorba-coders] [Merge] lp:~zorba-coders/zorba/bug867259 into lp:zorba

2013-04-24 Thread Zorba Build Bot
Validation queue job bug867259-2013-04-24T11-56-52.859Z is finished. The final 
status was:

All tests succeeded!
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[Zorba-coders] [Merge] lp:~zorba-coders/zorba/bug867259 into lp:zorba

2013-04-24 Thread noreply
The proposal to merge lp:~zorba-coders/zorba/bug867259 into lp:zorba has been 
updated.

Status: Approved = Merged

For more details, see:
https://code.launchpad.net/~zorba-coders/zorba/bug867259/+merge/160515
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[Zorba-coders] [Merge] lp:~zorba-coders/zorba/bug867259 into lp:zorba

2013-04-23 Thread Rodolfo Ochoa
Rodolfo Ochoa has proposed merging lp:~zorba-coders/zorba/bug867259 into 
lp:zorba.

Commit message:
Added tutorial to documentation

Requested reviews:
  William Candillon (wcandillon)
Related bugs:
  Bug #867259 in Zorba: Update Image tutorial
  https://bugs.launchpad.net/zorba/+bug/867259

For more details, see:
https://code.launchpad.net/~zorba-coders/zorba/bug867259/+merge/160515

Added tutorial to documentation

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=== modified file 'doc/zorba/indexpage.dox.in'
--- doc/zorba/indexpage.dox.in	2013-02-07 17:24:36 +
+++ doc/zorba/indexpage.dox.in	2013-04-23 22:24:25 +
@@ -62,4 +62,5 @@
 
 \section tutorials Tutorials
   - \ref web_crawler_tutorial
+  - \ref image_processing_tutorial
 */

=== added file 'doc/zorba/tut_image.dox'
--- doc/zorba/tut_image.dox	1970-01-01 00:00:00 +
+++ doc/zorba/tut_image.dox	2013-04-23 22:24:25 +
@@ -0,0 +1,222 @@
+/**
+\page image_processing_tutorial  Image Processing with Zorba
+
+\section image_proc Image Representation And Formats
+
+\subsection images Images
+
+Images are passed to the functions of the imaging library as xs:base64Binary types and 
+any function returning an image will return it as xs:base64Binary type. For example, 
+images read by the Zorba file module are already returned as xs:base64Binary and are 
+ready to be used. Also,  images written to disk using the file module will be ordinary 
+binary data if one passes \c binary as serialization option.
+
+
+\subsection image_formats Image Formats
+
+Currently, the imaging library supports the following popular image formats: GIF, JPEG, TIFF, PNG and SVG.
+If any other format is needed, please contact us and we will see if it is possible to support the format.
+
+\subsection functions Functions
+
+All functions provided by the image library are functional and will either return the right value 
+or raise an error. The library additionally offers interfaces with schema types in the function 
+signatures (\c basicschema.xq, \c manipulationschema.xq, \c paintschema.xq, \c animationschema.xq) which can
+be used to directly validate certain types (e.g. color strings).
+
+
+\subsection colors Colors
+
+Colors are represented as strings in the same way they are used in html. A leading '#' character 
+with 6 hexadecimal numbers following for red, green and blue values.
+
+Examples are: 
+- Black: #00
+- Red: #FF0
+- Green: #00FF00
+- Blue: #FF
+
+\subsection modules Modules
+
+Zorba provides the following four modules for image processing:
+
+- a href=/html/modules/zorba/image/basichttp://www.zorba-xquery.com/modules/image/basic/a which is concerned with accessing basic image attributes, creating new images and converting their format.
+- a href=/html/modules/zorba/image/manipulationhttp://www.zorba-xquery.com/modules/image/manipulation/a which is concerned with image manipulations like zooming, special effects etc.
+- a href=/html/modules/zorba/image/painthttp://www.zorba-xquery.com/modules/image/paint/a which is concerned with drawing different geometrical shapes and text to images.
+- a href=/html/modules/zorba/image/manipulationhttp://www.zorba-xquery.com/modules/image/animation/a which is concerned with creating animated GIF images.
+
+This tutorial contains a small example for each of the modules.
+
+
+\section basic_imaging_functions Basic Imaging Functions
+
+\subsection creating_an_image Creating An Image
+
+In this example, we create a new image and return the width and type (image format) of the newly created image.
+
+\code
+import module namespace basic = http://www.zorba-xquery.com/modules/image/basic;;
+
+let $new-image as xs:base64Binary := basic:create(xs:unsignedInt(100), xs:unsignedInt(100), GIF)
+let $width := basic:width($new-image)
+let $format := basic:type($new-image)
+return ($width, $format)
+\endcode
+
+
+\subsection explanation Explanation
+
+In line 3 \c $new-image is assigned the result of the basic:create command, so \c $new-image contains 
+the xs:base64Binary representation of a plain white GIF image.
+
+In line 4 we use the basic:width command with new-image as argument to get the width of the image 
+and in line 5 the basic:type function to get the format which are both passed back in line 6.
+
+\subsection expected_output Expected Output
+
+\code
+?xml version=1.0 encoding=UTF-8?
+100 GIF
+\endcode
+
+\subsection accessing_efix_information Accessing Exif Information
+
+This example shows how to access the Exif information in JPEG images (also possible with TIFF images).
+
+\code
+import module namespace http = http://expath.org/ns/http-client;;
+import module namespace basic = http://www.zorba-xquery.com/modules/image/basic;;
+declare namespace h = http://expath.org/ns/http-client;;
+
+(: Get image from web :)
+let $req := h:request method=GET 
+			   href=http://www.zorba-xquery.com/tutorials/tutorialimages/exif.jpg;
+ 

[Zorba-coders] [Merge] lp:~zorba-coders/zorba/bug867259 into lp:zorba

2013-04-23 Thread Rodolfo Ochoa
The proposal to merge lp:~zorba-coders/zorba/bug867259 into lp:zorba has been 
updated.

Commit Message changed to:

Added tutorial to documentation

For more details, see:
https://code.launchpad.net/~zorba-coders/zorba/bug867259/+merge/160515
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