EarthMeter vs DoRIS mobile

With EarthMeter you can calculate distances or areas and their circumferences with an arbitrary number of positions. EarthMeter uses algorithms that take the earth's curvature into account; therefore also far from one another measurement points also lead to correct results. Additionally, EarthMeter is able to calculate and visualize the course between two arbitrary points on earth. All these calculations are based on a user chosen geodetic datum. As measurement units metrical and imperial linear and surface measure units are availble. Another topic that is covered by EarthMeter is the conversion of position coordinates of one coordinate system into another one. For doing so different geodetic datums and projection methods can be chosen from the user. The user has the choice between all commonly used geodetic datums and projections. EarthMeter supports likewise iPods, iPhones and iPads.

DoRIS mobile by from viadonau offers comprehensive information for inland navigation in Austria. Sophisticated information services retrieved from by the system DoRIS (Donau River Information Services) are now available in one app. A useful service for all users of the waterway as well as for everyone interested. DoRIS mobile includes important fairway and traffic related information like: - Water levels - Lock status - Fairway condition (high water, ice, other blockages) - Shallow sections overview - Notices to Skippers - Vertical bridge clearance - Map service Be always up-to-date With DoRIS mobile you always know what’s happening at the Austrian Danube regardless of time and location. An additional push service provides timely notification of relevant changes of the availability of the fairway and ensures that you never miss any important information again. Internationally available The information is available in German and English language. Note: Notices to Skippers from Slovakia cannot be displayed in the current App due to a new data standard. Integration is foreseen when available again. This service is provided by via donau – Österreichische Wasserstraßen-Gesellschaft mbH. www.viadonau.org; www.doris.bmvit.gv.at