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View selected historic maps and aerial photographs, mixed with current data from Google in a Google Maps viewer. The "crown jewel" is a full-city mosaic of the 1942 Philadelphia Land Use Maps.
Export to KML is an extension developed for ArcGIS 9.x by the City of Portland, Bureau of Planning. The extension allows ArcGIS users to export GIS data in “keyhole markup language” (KML) format for viewing in Google Earth. Any point, polyline, or polygon dataset, in any defined projection, can be exported. Features can be exported as either 2-dimensional features, or 3D features "extruded" upwards by an attribute or z-value.
Some other features: ability to incorporate ArcMap layer symbology into the exported KML; labeling of point, line, and polygon features; "describe" individual features using the database attributes, store database attributes as "schema" items.
If you come across any bugs or make any improvements, please let me know. I'd highly recommend checking back regularly for updated versions.
> WHAT'S NEW IN VERSION 2.4:
- implements KML version 2.2
- attributes from the GIS database stored in the output KML as "schema" items
- labels and information points can now be vertically offset
- layer and features descriptions can be saved as and imported from files
- a horizontal “shift” (in X/Y coordinates) can now be applied
- bunch of other bug fixes, minor tweaks and improvements
Google Mapplets are mini-applications that you can embed within the Google Maps site. Examples include real estate search, current weather conditions, and distance measurement. Mapplets are Google Gadgets that can manipulate the map using Javascript calls that are derived from the Google Maps API.
Mapplets are currently only available in a special Developer Preview version of Google Maps at:
http://maps.google.com/preview
Mapplets are new, so there may be bugs and slightly less than perfect documentation. Bear with us as we fill in the holes, and join the Maps API discussion group to give us feedback.
This summer, the Frugal Traveler sets out to hopscotch the globe using low-cost carriers, buses, trains, ferries and your travel tips. Follow his journey here every Wednesday, until the deed is done. See the complete list of articles below the map.