DOCBOOK MEDIAOBJECT PDF

The following is an example of a mediaobject set up for both HTML and FO outputs. The DocBook stylesheets can automatically select the right graphic if the. In DocBook V, three types of external objects are defined: VideoObjects, AudioObjects, and ImageObjects. Additional textual descriptions may be provided. version, [], xsd:anySimpleType, Specifies the DocBook version of the element and its descendants, from group utes ยท xml:lang, [].

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The start-indent property is controlled by the attribute-set named pgwide. The preferred element for graphics is mediaobject. Although informalfigure does not take a title, they both provide additional attributes medisobject handling your graphics:. If its imagedata element does not contain an SVG graphic, but has a format attribute, it checks to see if its value is on the format list for that output.

Chapter Graphics

It looks at the docboo imageobject inside the mediaobject. If you want finer control, then you have the option to use any role values you want. If you are using XEP, then set the parameter preferred. Then you pass the selected role value in a command line parameter named preferred.

If you do not use the role attribute to select from among several imageobject elements, then the stylesheets will try to make a choice based on file format.

Graphics are a frequent cause of problems in DocBook documents. If the fileref does not have an extension, it checks the graphic. Remember that the role attribute goes on the imageobject element, not the imagedata. You could mediaobjecct profiling to select from among several graphic elements, but mediaobject is designed to do it without the need for the profiling step.

These attributes let you indicate that the figure can float to the top, left, or right. If so, then it accepts that object and does not consider any others. You can also use figure and informalfigure to add space above and below your docbbook in print output.

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Element mediaobject

Each imagedata element indicates its file name and format. You could also put sizing attributes there. But the first thing you must do is decide docbokk elements will hold your graphics.

The DocBook stylesheets can automatically select the right graphic if the imageobject elements have a role attribute of either html or fo.

Usually, the various images in a mediaobject are different formats of the same illustration, with the idea that only one of them at a time will be used by the stylesheet. For example, if you have a choice of XSL-FO processors, then you could designate a graphic format optimized for each one. When you process this example with the html stylesheet, you get the PNG graphic, and when you process it with the FO stylesheet, you get the PDF graphic.

If its imagedata element doccbook a complete SVG graphic and the parameter use. The most frequent problems are matching graphics file formats to document output format, and sizing graphics. If two objects are acceptable, only the first can ever be selected with this method. It can contain several imageobject elements with different specifications. Because imageobject can also contain an objectinfo element.

mediaobject

That element can be used to track information about the image, such as the software that created it, the current revision, the author, etc. The automatic selection behavior is controlled by the use. You might set the role values for two different vector graphics to fo-fop and fo-xep. The mediaobject element contains two graphical elements. If all of these tests fail on the first imageobjectit repeats them on subsequent objects until it finds mwdiaobject acceptable mfdiaobject.

You can also wrap your mediaobject element inside a figure or informalfigure element.

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With figureyou can supply a title, and your figures will be numbered and listed in the optional front-of-the-book List of Figures. If your print content is styled so that headings are at the left margin and body text is indented, then setting this attribute to 1 lets you indicate that the figure is wide and should be positioned starting at the left margin.

If it is nonzero, then the role attribute is considered during the selection process. If that is not desirable, then add the changes to the figure.

The following attribute sets provide the spacing in the stylesheet, which you can adjust in your customization layer:.

For cross referencing purposes, put the id attribute on the mediaobject container, unless you are putting that inside another container such as figure. You might be wondering why the imagedata element needs an imageobject container?

If you need to use more than one graphics file format, then you must use the mediaobject element instead of the graphic element. The stylesheets contain several lists of file formats that are acceptable for each output type. You can turn that behavior off if you set the parameter to zero.

Other stylesheet customizations such as Website or your own will use the value for the stock stylesheet it is based upon. The stylesheet can then choose the appropriate object for a given output. A mediaobject element is a container for one or more imageobject elements, each of which has an imagedata element. If you are processing with the FOP processor, then set the parameter preferred. Each of these main graphic elements is supplemented with a version to be used inline, named inlinegraphic and inlinemediaobjectrespectively.

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