Vector Markup Language
| Filename extension | .vml |
|---|---|
| Developed by | Microsoft |
| Type of format | vector image format |
| Extended from | XML |
Vector Markup Language (VML) is an XML language used to produce vector graphics. VML was submitted as a proposed standard to the W3C in 1998 by Microsoft, Macromedia, and others. Around the same time other competing W3C submissions were received in the area of web vector graphics, such as PGML from Adobe, Sun, and others.[1]
| This box: view • talk • edit |
As a result of these submissions, a new W3C working group was created, which produced SVG.
Even though largely ignored by developers, Microsoft still implemented VML into Internet Explorer 5.0 and higher and in Microsoft Office 2000 and higher.
Google Maps currently uses VML for rendering vectors when running on Internet Explorer 5.5+, and SVG on other browsers.[2]
The Vector Markup Language is specified in Part 4 of the Office Open XML standards ISO/IEC 29500:2008 and Ecma 376.[3][4]
Contents |
Example
The following code displays an oval filled in blue:
<v:oval style="position:absolute; left:0; top:0;
width:100px; height:50px"
fillcolor="blue" />
The SVG equivalent for this code would be:
<ellipse cx="50" cy="25" rx="50" ry="25" style="fill:blue;"/>
Curiously, the fillcolor attribute of VML becomes a CSS property in SVG, and the four attributes of the SVG ellipse tag become CSS properties in VML.
Software
VML is used by most Microsoft Office applications, such as Microsoft Word, Microsoft Visio, etc., to create online files, while using the Save As HTML option (plain HTML or MHT, Microsoft HyperText Single File Format). Such files retain complete vector information, and can be reopened for editing using applications, such as Microsoft PowerPoint. VML is natively supported by Microsoft's Internet Explorer within inline HTML, compared to SVG that is natively supported by Mozilla Firefox, Opera, and Safari inline only in XHTML mode.[5]
Several online utilities also use VML as the primary language of choice for storing vector information in HTML.[citation needed]
References
- ^ PGML
- ^ Google Maps
- ^ http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=51462
- ^ Ecma International TC45 (2006-12). "Standard ECMA-376 Office Open XML File Formats". Ecma International. Retrieved on 2007-04-04.
- ^ SVG In HTML Introduction - MDC
See also
External links
- W3C VML proposal
- MSDN VML Page
- Ancyra Online VML Drawing
- Vector Graphics Rendering Library Buffer Overflow
- First browser game fully created using VML libraries, "Fields of Glory"
- Windows VML Vulnerability FAQ (CVE-2006-4868)
|
||||||||||||||
|
|||||||||||||||||||||||
Why are we here?
All text is available under the terms of the GNU Free Documentation License
This page is cache of Wikipedia. History