This item is on our roadmap for Styler, a web cartography application.
Two standard features of any GIS styler are the presentation of unique values and
the composition of thematic maps.
Unique Values
Uniques values are useful when there are features of a few different categorical types, which should all be drawn differently. A good example is roads – you want your interstates, your highways, your primary roads, and your secondary roads to all look different. This item will provide “wizard”-type functionality to generate unique values, and work-flows that make it easy to further customize the style.
Thematic Maps
Thematic maps classify continuous data (e.g. incomes, ages, temperatures) into different colors, to display numeric information visually. GeoServer already has the ability to dynamically generate SLD documents from data sources, with support for equal intervals and quantiles, and creating color ramps using a number of categories supplied by the user. The main thing needed is a good UI to manipulate and manage the groups of rules that are generated by the server from the raw data.
Funding
This roadmap item is currently unfunded.
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Other Roadmap Items
Web users especially require a flexible library of images for their map styles. We fill this need with an improved Image Manager for our Styler application.
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