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You can use any two media objects in this way to create alternative media for the online and PDF versions of your content. When two media subtype objects are included inside a media element, use the for attribute to specify when that object should be displayed.

Media subtypes

Within each <media> element, at least one media subtype is required. The following sections describe how to create the various possible subtype elements.

Images

Some of the image file types and their corresponding MIME types used in Connexions modules are:

  • mime-type="application/postscript"
  • mime-type="image/png"
  • mime-type="image/jpeg"
  • mime-type="image/gif"
This list is not all inclusive. Any image with a valid MIME type can be used in a module.

Embedding images

To embed images in your module, insert CNXML entries similar to the following example into the "index.cnxml" file for your module: <figure id="figure-01"><title>Example Figure</title><media id="figureexample" alt="an envelope with a blue page"><image mime-type="image/png" src="Xenveope-blue-on-blue.png"/></media><caption>A graphic image displayed as a figure.</caption></figure>

The src attribute in the image tag gives the location or source of the image that you want to appear in the module. Afterloading the image file into the 'Files' tab on your module, simply provide the full file name (e.g. " envelope-taller.png ") to specify which image should be used.

The actual display for the previous CNXML example is:

Example figure

an envelope with a blue page
A graphic image displayed as a figure.

Adjusting the size of the image

You can use optional size attributes to control the size of the image displayed in both online and print versions of the content. There are a few things to keep in mind when specifying image sizes in CNXML:

  • Images that are displayed larger than their original size will look fuzzy or grainy.
  • Resizing an image online relies on the web browser to determine how to redraw the image. This can sometimes lead to unpredictable and undesirable results that vary from browser to browser.Whenever possible, resize the image to the desired dimensions before loading the file into Connexions to avoid this problem.
  • It is not necessary to specify both the height and width of an image. If you supply only one of these, the other value will be calculated to preserve the same height-width ratio as theoriginal image. You only need to supply both when you wish to change the shape of the image.
  • You can choose to resize an image for online viewing, printing, or both by supplying the corresponding attributes as described below. Sizes specified for one version have no effecton the other. If you do not supply sizing information, the image will be displayed in its original size by default.

Adjusting the size of an online image

You can adjust the size of the image in the on-line version of your document by using the height and width attributes.

The following code will display the image in its original, default size:

<figure id="element-439"><media id="tajmahal" alt="The Taj Mahal"><image src="TajMahal_medium.jpg" mime-type="image/jpeg"/></media><caption>The photograph of the Taj Mahal in this figure and the following figureswas taken by<link url="http://www.flickr.com/photos/babasteve/">Steve Evans</link>. It is licensed for public use under the Creative Commons Attribution License.</caption></figure>

Questions & Answers

what is phylogeny
Odigie Reply
evolutionary history and relationship of an organism or group of organisms
AI-Robot
ok
Deng
what is biology
Hajah Reply
the study of living organisms and their interactions with one another and their environments
AI-Robot
what is biology
Victoria Reply
HOW CAN MAN ORGAN FUNCTION
Alfred Reply
the diagram of the digestive system
Assiatu Reply
allimentary cannel
Ogenrwot
How does twins formed
William Reply
They formed in two ways first when one sperm and one egg are splited by mitosis or two sperm and two eggs join together
Oluwatobi
what is genetics
Josephine Reply
Genetics is the study of heredity
Misack
how does twins formed?
Misack
What is manual
Hassan Reply
discuss biological phenomenon and provide pieces of evidence to show that it was responsible for the formation of eukaryotic organelles
Joseph Reply
what is biology
Yousuf Reply
the study of living organisms and their interactions with one another and their environment.
Wine
discuss the biological phenomenon and provide pieces of evidence to show that it was responsible for the formation of eukaryotic organelles in an essay form
Joseph Reply
what is the blood cells
Shaker Reply
list any five characteristics of the blood cells
Shaker
lack electricity and its more savely than electronic microscope because its naturally by using of light
Abdullahi Reply
advantage of electronic microscope is easily and clearly while disadvantage is dangerous because its electronic. advantage of light microscope is savely and naturally by sun while disadvantage is not easily,means its not sharp and not clear
Abdullahi
cell theory state that every organisms composed of one or more cell,cell is the basic unit of life
Abdullahi
is like gone fail us
DENG
cells is the basic structure and functions of all living things
Ramadan
What is classification
ISCONT Reply
is organisms that are similar into groups called tara
Yamosa
in what situation (s) would be the use of a scanning electron microscope be ideal and why?
Kenna Reply
A scanning electron microscope (SEM) is ideal for situations requiring high-resolution imaging of surfaces. It is commonly used in materials science, biology, and geology to examine the topography and composition of samples at a nanoscale level. SEM is particularly useful for studying fine details,
Hilary
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Source:  OpenStax, Ideas and tools for improving connexions modules and collections. OpenStax CNX. Mar 22, 2010 Download for free at http://cnx.org/content/col11184/1.2
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