AMX IS-SPX-1000/1300 manual Spxbegin Element, Additional Syntax for Multiscreen Content

Synchronized Content

If you want to use your multiscreen in a setup combining synchronized and unsynchronized content, the following alternative approach is also possible:

Create an index.svg file using the aspect ratio of a single screen.

Create a iCalendar schedule.

Create multiscreen files with the <spx:multiScreen> instructions and add them to the calendar. Create single screen content and add them to the calendar. Note that you can use different calendars

depending on the IS-SPX Player (using the switch of JavaScript, for instance). In this latter case, the content to be synchronized between multiple screens must start and end at the same time in the different calendars.

The spx:begin Element

Instead of using a complete calendar file just for the synchronization of the multiple screens, it is possible to use an in-

line reduced schedule inside the index file. The schedule is described using a proprietary tag in the svg element: spx:begin. The spx:begin describes the starting point of the document. Using this attribute has the same effect as putting

the document in a schedule file starting at the same time as the one described by the attribute.

The spx:begin element can be used as follows:

<svg

xmlns="http://www.w3.org/2000/svg"

xmlns:spx="http://www.spinetix.com/namespace/1.0/spx" height="100%" width="100%"

spx:begin="Thhmmss" viewBox="xc yc wc hc" > [...]

</svg>

Value definitions:

spx:begin="Thhmmss" is the presentation beginning time, where: T is a fixed flag,

hhis the hour of the day, mm are the minutes,

ss are the seconds.

This feature is used by all the predefined multiscreen templates.

Additional Syntax for Multiscreen Content

The following two methods are also available to build multiscreen contents: Extension of the SVG <switch> element

JavaScript MULTI_SCREEN_ID variable

Extension of the SVG <switch> Element

The SVG <switch> element allows you to conditionally display SVG elements. This is a standard SVG element described in the SVG specification. For the handing of multiscreen content, a proprietary condition has been added. This

lets you visualize a specific content based on the screenID of the player running the project. The <g> content is shown only if spx:multiScreenId is equal to “screenID”. Multiple <g> contents, for different “screenID” values can be listed

into the same <switch> element.

<switch>

<g spx:multiScreenId="screenID"> </g>

<switch>

Value definitions:

spx:multiScreenId="screenID" is the variable tested by the switch, it contains the ID of the current screen. screenID is the value associated with each of the screens where the content will be displayed (e.g. “left”, “right”, “top”, “bottom”, etc).

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