Help:Navigational image
From WikiGlide
An image can be used as "link label", i.e. it can link to an arbitrary page. A template that illustrates how this may be done is provided at http://en.wikipedia.org/wiki/Template:Click
Another way to do this is by putting a redirect on the image page. For example, on Meta the internal image Image:Catapult.jpg links to the page Help:Redirect, while the image Image:Amtrak schematic.png from Commons links on Meta to the Main Page.
If the redirect is within the same project, then the following is inserted on the target page:
- a redirect message with a link to the image page (MediaWiki:Redirectedfrom)
- the image
- if the image is on Commons: the message MediaWiki:Sharedupload
The 2nd and 3rd item are somewhat confusing and out-of-place when one wants to concentrate on the target page and not on the details of the image that was used to arrive at the page. See also for example the South Holland link below on the Wikipedia version of this help page.
Example where, at least on Meta, the target is a page on another project: Image:Mark twain.jpg. In this case no redirect message is shown on the target page, and the image is not inserted in that page. The image page is difficult to access, there is no link to it, one needs the URL http://meta.wikimedia.org/w/index.php?title=Image:Mark_twain.jpg&redirect=no. For convenient access to this image page, this link can be put near the linked image, and/or on the target page.
In the case of redirecting to a special page, e.g. on b:fr:Accueil using [1], the same remarks apply, except that a link from the target page to the image page is not possible.
To use the same image on another page without a redirect or with a different target, a copy of the image has to be uploaded under another name. However, an image on Commons may have its own image page on each project, e.g. Image:Zuid Holland-Position.png, which could have a redirect on the image page on this project, which would then be accessible by the link http://www.wikiglide.com/wiki/index.php?title=Image:Zuid_Holland-Position.png&redirect=no.
Projects that allow embedding images in external link style
In projects that allow embedding images in external link style (in which case you see three images in the lefthand side of the table below), the image can also be external, and the target can be any URL; there are the following possibilities:
| What it looks like | What you type |
|---|---|
| an external image linking to an external page, image, etc.: |
[http://www.google.com http://www.google.com/images/logo.gif] |
|
an external image linking to an internal page: |
[[Help:Redirect|http://www.google.com/images/logo.gif]] |
|
an external image linking to an internal page with external link style, with : |
[{{SERVER}}{{localurl:Help:Redirect}} http://www.google.com/images/logo.gif]
|
|
an internal image linking to an internal page with external link style: |
[{{SERVER}}{{localurl:Help:Redirect}} http:../upload/b/bc/Wiki.png]
[[:Image:wiki.png]]
|
|
If you don't want the small icon indicating it is an external link to appear, because it looks messy and it is actually an internal link, you can surround the image link with code to supress it, and now you have the ultimate internal linking with images - hooray! Although this will be most useful to people running their own corporate or independent wikis If you are looking at this on Meta, you will not see the effect here as it doesn't allow embedding of 'external' images... |
<div class="plainlinks">[{{SERVER}}{{localurl:Help:Redirect}} http:../upload/b/bc/Wiki.png]</div>
|
Thumbnail
One application is linking a small version of an image to a large one. Example where both are external:
[http://pennine.demon.co.uk/photos/seakayak/xga/Lunga-P7-100-3086.jpg http://pennine.demon.co.uk/photos/seakayak/small/Lunga-P7-100-3086.jpg]
gives
http://pennine.demon.co.uk/photos/seakayak/small/Lunga-P7-100-3086.jpg
The alternate text is the name of the image, after the last slash in the URL. If you have control over the image, give it a meaningful name; you could even include a text like "click to enlarge" in the name.
![[1]](http://fr.wikibooks.org/w/index.php?title=image:Go_To_Random_Page.png&redirect=no){kind=link}
