Web page

A Web page or webpage is a "page" of the World Wide Web, usually in HTML/XHTML format (the file extensions are typically htm or html) and with hypertext links to enable navigation from one page or section to another. Web pages often use associated graphics files to provide illustration, and these too can be clickable links. A web page is displayed using a web browser.

Graphics

For embedding (transclusion) of an image in a web page, see HTML element#Images.

Related Topics:
Transclusion - Image - HTML element#Images

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The graphics file format in web pages is usually JPEG for photographs and GIF or PNG for other images such as diagrams, drawings, graphs, etc. The last two formats can also be used for photographs but are not as suitable for that purpose as JPEG (JPEG is lossy while GIF and PNG are lossless). GIF is used for animations, GIF and PNG for images with transparent pixels, PNG for images with partially transparent pixels (but this is not supported by e.g. IE). All these are raster graphics. There is also the SVG format: Scalable Vector Graphics. Currently more common ways to supply vector graphics are either with a PDF file, viewed either using a plug-in of the browser or a separate viewer, or with Flash. This is useful e.g. for a map, often a combination of a vector graphics layer and text, and possibly a raster graphics layer. This gives better results when zooming in than a GIF or PNG image (JPEG would be even worse due to compression artifacts).

Related Topics:
Graphics file format - JPEG - Photograph - GIF - PNG - Drawing - Graph - Lossy - Lossless - Animation - Transparent - Raster graphics - Scalable Vector Graphics - Vector graphics - PDF - Flash - Map - Compression artifact

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Alternatively, on zooming in the server supplies a new image. In that case one can not download the whole map, unless perhaps piece by piece. See e.g. the links in Map#External links.

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Also, as an example, compare the GIF and PDF province maps in South Holland#External links.

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See also Map#Electronic maps.

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