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For displaying our map over the internet we use vectors. This gives much more possibilities than using static tiles, e.g. the unlimited generation of map styles with only one server instance.
For delivering this different map styles, a very small footprint on computer ressources is used. For each style only one small XML-file is necessary and the can be hundred of this files delivered with one server. Also the generation of vector maps for prepress is possible with this technology. We only have to define a higher resolution in pixel (300 dpi) for delivering high resolution prepress maps.
The core of the innovation is the reduction of the amounts of data to be transmitted, resulting in the savings of time and costs. The data reduction is the outcome of the patented real-time generalization method. The compression process lowers the amount of data to be transmitted to an optimal size.
Example for a usual generalization
The patented principle can be explained with help of the illustration on the right. Using the example of the letter „a“, the picture at the upper right shows the going over of the picture by an ordinary compression process . The „a“ stands for an irregular form, like the course of a street, for example, which is to be represented as a vector in the form of x/y coordinates. A serrated line can be clearly seen in the image at upper right, which the original form insufficiently illustrated. It becomes additionally clear that the serrated line is comprised of a multitude of coordinates and therefore encompasses a large amount of data.
Example for our technology
The picture at the lower right shows the 123map method in which the tangents formed by fewer x/y coordinates are connected to the original image and presents the picture with optimal fidelity. This makes the transmission of decisively less vector data for the representation on the monitor possible with greater speed.
Diet for vectors
This 'a' is generalized with a ordinary technology. The result is a unregular shape with hundreds of points.
The 'a' above is generalized with our patented technology. As a result you see a smooth shape with far less points used to built it.