Archive for the ‘zoomify’ Category

Small GeoFeeder Updates

After quite some time, i managed to add some updates to GeoFeeder. All of this “just in time” for the code signing certificate to run out end of next month. I’m still struggling to find good reasons to get a new certidicate. Donations anyone?


GeoRSS Viewer/Reader in AIR

Just did a quick wrapper around the GeoRSS reader classes, got GeoFeeder; then simply couldn’t stop to improve it. Try any GeoRSS feed you know of, but be aware: every feed sucessfully parsed will be “recorded” for all other users to see. See the GeoFeeder page for details. Please upgrade your Flash Player This is [...]


RSS 1.0 + 2.0, Atom 1.0 on Yahoo – Virtual Earth – Google – OpenStreetMap …

To test the recent changes to my maptech library and to feature the omnipresent Geo-RSS feeds, i put together a simple yet powerful (at least i hope so) GeoRSS viewer. Features renders Atom 1.0, RSS 1.0 and RSS 2.0 supports W3C, Simple and GML feeds implements RSS 2.0′s TTL BTW, please add all georss-feed-urls you [...]


Zoomify, Virtual Earth, Yahoo Maps, Google Maps, OpenStreetMap and Bluemarble all in one AS3 flex library

Update: now includes Mars and Moon. After some thinking on how to integrate the code for linearly-projected maps (zoomify …) and mercator-projected maps (almost all others) into a single AS3 model, i found a very good, easy and straight-forward architecture. The trick was to separate the coordinate conversion into two steps: linearisation and linear interpolation [...]


Creating Real “Multi”-Layer Maps

Doing another viewer for a 200+ maps project, i discovered that combining overview and detail maps in the same view, rendered the system unusable with only a few layers. Naturally i did some optimizations on the layer drawing code. This resulted in a dramatical performance improvement when combining large overview maps with detail maps in [...]