Size of the Text Crawl Field

This forum is dedicated to the discussion of the asset types (e.g., RSS feed) supported on a Screen.

Size of the Text Crawl Field

Postby Cilutions Support » Tue Dec 10, 2013 12:47 pm

Care should be taken to limit the length of the string in a text_crawl asset so the string fits inside the display zone. The current implementation of the text_crawl asset limits the render area to 4000 pixels. The DMB Player will truncate any text string which exceeds this display size in pixels.

The size of the string depends on the screen zone dimensions, font used, and the characters to display (a lot of i characters take the same space as much fewer W characters).

For example, a 1215 x 51 pixel screen zone can display about 100 upper case W characters if the font is Arial and text size is 40 pixels.

Text strings are typically limited in length (e.g., 100 characters or less).

To display much longer crawler messages an RSS file can be used. Here the user can string together multiple, virtually unlimited, messages as separate stories in an RSS file to display as a series of crawler messages. The following example RSS file shows roughly 300 characters to display in a crawler RSS screen zone, as a sequence of three strings, spread across three stories, where each story is less than 100 characters:
Code: Select all
<rss version="2.0"> <channel> <title>One Long String Across Three Stories</title> <item> <title>First String First String First String First String First String First String First String</title> </item> <item> <title>Second String Second String Second String Second String Second String Second String Second String</title> </item> <item> <title>Third String Third String Third String Third String Third String Third String Third String</title> </item></channel> </rss>
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