Thursday, January 22, 2009

30. worldwidemap
When Google Maps arrived on the scene our first reaction was disappointment, someone else got there first. But after careful consideration, we now think Google Maps is a blessing. World Wide Map was always about more than just the delivery mechanism, the client-side map control. It was also about making it easy to publish geo data and combining data from different providers, at low or no cost. And while all kinds of mash-ups have arrived using Google Maps to display all kinds of data, there are almost no standards for providing the required data, so each mash-up is its own island of data. Geo data is still stored in all kinds of proprietary formats and databases. This is where we can still make a difference. Even more so now we are no longer held back by huge costs for simply displaying the data on a map.
We developed an alternative map browse control using more advanced JavaScript techniques, which did most geo calculations on the client side, reducing the geoserver to just spitting out predefined tiles of the complete map.
The first version still relied on server side processing to insert markers in the tiles, and to create client-side click maps, old browsers with limited or no support for 'layers' where still with us then. Later versions improved on this approach by using new DOM based techniques to layer information over the map client-side, so that the server was nothing more than a static image server. From about the beginning of the 16th century, the nations of Western Europe began to establish trading stations India. The first settlers were Portuguese; whom the Dutch followed, English and French, the British East India Company was the most successful in its rivalry with the other European powers. The British gradually expanded their influence until, by the middle of the 19th century, they controlled the entire area that would later become the independent countries of India, Pakistan and Bangladesh

No comments:

Post a Comment