2011/12/08
Image zoom plugin for Wordpress (WP-ImageZoom Ver1.0) Manual
%Functions
" When you click a thumbnail in a post or a page, the new window opens, and you can zoom-
in/out the original image in the window.
" You can zoom-in the image to dot-by-dot by default. Also you can zoom-in more by
changing maximum zoom rate setting in the admin page (in this case the image blurs).
" You can download the original image file by clicking download button. This feature can be
disabled by the setting in the admin page.
" Like Google Maps, the detail of the large image can be shown relatively quickly by
preparing divided images in several scale. But if the divided images of the large image do
not exists in the cache, it takes some time until zooming function become available.
%Usage (for site visitors)
Click an image in a post or a page. If the image is connected to the zooming function of this plugin,
a new window for zooming opens and its size is the same as the screen.
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(Description of each buttons)
Buttons Descriptions
Zoom in 30% by default. In other words, the length of both vertical and
horizontal side increase 30%. You can change the zoom rate in the admin page.
Zoom out 30% by default. In other words, the length of both vertical and
horizontal side decrease 30%. You can change the zoom rate in the admin page.
Reset the zoom rate.
Show/hide the thumbnail.
Download the jpeg. You can suppress displaying the download button by the
setting in the admin page.
(Moving visible area)
The red rectangle in the thumbnail represents the area which is now visible. You can move the
visible area by dragging the red rectangle. Also, you can drag the image directly.
(Moving the thumbnail)
Position the mouse pointer on the gray border of the thumbnail. Then, drag it.
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%Usage(for site admin)
(1)Install
0Install and enable the plugin in the Wordpress setting page.
(2)Configure the plugin
û0Go to the setting page.
By clicking 'WP-ImageZoom' link in the administration page of Wordpress, you can access the
setting page of this plugin.
û0Entering parameters
Enter each parameters and click 'Save Changes' button.
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Descriptions of each setting items
Default settings
Setting items Descriptions
Image quality Specify the quality of divided images for zooming by the number from 1
to 100. The larger number, the better quality(the less degeneration from
the original images), but the less memory/storage effeciency.
Download button Select a radion button of 'Enable' or 'Disable' to show or hide the
download button. If you choose 'Enable', the button is shown, so visitors
can download the original images.
Zoom step Specify the amount(rate) of zooming when clicking zoom-in/out button
once in percent. The sizes of each of vertical and horizontal sides change
in the specified rate.
Maximum zoom rate Specify the maximum zoom rate in percent. Each of vertical and
horizontal sides can be changed up to the original length × this value.
Cache settings
Setting items Descriptions
Maximum cache size Specify maximum size of cache in GB. When the size of cache go beyond
the specified size, the cache which is unused for the longest time is
deleted.
Cache location Specify the full path name of the directory to store cache. It must be
writeable by web server, and readable as web contents.(ex: under
'httpdocs' or 'public_html' etc.).
Clear all cache By clicking the link, all the cache is deleted.
Clear cache of unused By clicking the link, the cache of images which is not used in posts or
images pages is deleted.
(3)Writing in the post.
Enclose an A tag which links to a large image and displays its thumbnail, by a pair of shortcodes.
(Example)
[izoom]
You can enclose multiple images with a pair of shortcodes
(Example)
[izoom]
[/izoom]
It's easy! Insert images by using media button of Wordpress. Then enclose them with shortcodes.
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And you can override the default settings of individual images by specifying parameters in the
shortcode.
Items Descriptions Default
imagequality Same as 'Image quality' in the admin page. Apply default setting.
download "1":show the download button. Apply default setting.
"0":hide the download button.
zoomstep Same as 'Zoom Step' in the admin page. Apply default setting.
maxzoomrate Same as 'Max zoom rate' in the admin page. Apply default setting.
(Example)
[izoom imagequality="80" download="0" zoomstep="40" maxzoomrate="200"]
000
000[/izoom]
%Miscellaneous
" You need to set the permission of the cache directory so that the web server can write date
into it.
" You need to clear the entire cache before you change the cache directory. If you clear the
cache after changing the cache directory, you cannot clear data in the previous cache
directory from the admin page even if you get back the setting. (In this case you can delete
the cache manually.)
" If you delete cache manually for some reason, it does not cause malfunction of the plugin.
" Although the cache directory is set in the plugin directory by default, it must be changed,
because in this state the entire cache is deleted when the wp-imagezoom plugin is updated
automatically.
" It is recommended that you specify the size of the cache as large as possible so that all the
divided images for zooming can be stored, for site visitor's smooth access.
" How large image this plugin can treate depends on the amount of memory the PHP
processor can use.
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