Posts Tagged ‘layer’

  • 27 Mar

    Posted by
    joesonic


    Category

    How to create time dependent maps?

    0

    Many geographic layers or even features within a map layer, which are visualised on web maps, are related to specific time frame. These features are only relevant during a given period of time. Historical maps or mapping applications which deal with current and past or future geographic phenomena, have to include some time attributes. Time (visioning and historiography) is considered as a complex issue for GIS.

    Timemap is a very easy approach to time dependent geographic web maps, including an rudimentary timeline for visualisation. This Javascript library works in combination with Google Maps and facilitate a SIMILE timeline. The library includes the functionality to visualize data sets coming from a JSON or KML source both in a map and a timeline simultaneously. By default, items in the visible range of the timeline are displayed on the map.

    User support for Timemap can be found at the timemap.js development discussion group.

    timemap

    Examples

    Simple Three-Item Dataset (using inline JSON data)

    Post-Election Violence in Kenya (using KML data)

    Artists & Authors of the Renaissance (using JSON data from a freebase.com query)

    Current version is: 1.4

    [via http://timemap.googlecode.com]

  • 24 Aug

    Posted by
    joesonic


    Category

    Multi Layer Paper Maps

    0

    The company Urban Mapping has developed a new kind of paper map, which allows to visualize different layers on a co called Panamap. With their so called MapAction Technology the user can change the view angle to look at different layers of the map.

    This is how it works according to their homepage:

    1. Artwork for three views of Manhattan is created and optimized for visual performance. This requires a detailed understanding of typeface, line orientation, color contrast and a host of additional subtle but significant design concerns.

    2. The three Images are interlaced by alternating horizontal strips from each. The resulting compound image is calibrated to a specially designed polymer lens substrate. Lenses contain between 60 to 200 micro-lenses per inch, depending on the desired outcome. This is mounted to a backing, die cut and packaged.

    3. The underlying technology essentially fools the human eye. By rotating the map, the angle of viewing is changed and one of the resulting three layers can be viewed (as demonstrated in the Flash demo at the top of the page).

    A flash based demonstration and a video can be found on the official homepage of Panamap.

    [via Panamap]