ISS-EWATUS DSS Web Services Sample Clauses

ISS-EWATUS DSS Web Services. All web invokable methods share the following common properties:  They are written using the programming language C# which encompasses strong typing, imperative, declarative, functional, generic, object oriented and component oriented programming disciplines.  They all run under the same Namespace  They are script enabed, meaning that they can be called via scripts, using AJAX.  They are developed based on project requirements that are highly modular As stated above, EPANET module should be run at least once every new billing period in order to have updated and current pressure profiles based on period's billing consumptions and pumping station's water network consumption. When the system loads, it automatically checks the database for latest records and alerts the user if he must run EPANET simulation to create and update the simulations' results. The warning message and module redirection can be seen below. When this message is displayed, then the user must run new EPANET simulations for the current period in order to be able to generate and use correct flowrate and pressure profiles. In order to run these simulations the DSS must prepare all data and create necessary database records. All these functionalities are handled in RunEpanet.aspx web page. On page load, the system retrieves and generates landzones for the selected city. Each landzone holds a number of watermeters devices that are retrieved using OpenLayers JavaScript library and TURF.JS. These devices will be used in the next step for the disaggregation of the water network demand to the city's landzones. In order to dynamically retrieve this information first we load all landzone objects from the database, along with their point’s coordinates which are represented as GEOJSON objects and finally all watermeter devices that are located in the selected city. Then we render the landzones on top of an OpenLayer map, along with the watermeter posistions and then we use a function that uses TURF.JS library to create and retrieve point objects based on polygons and their shapes. This function basically loops through a JavaScript array variable that holds all landzone objects and checks for watermeter devices that are located in each polygon shape. When the DSS has finished loading all landzones and their flowmeter devices it displays a message indicating the procedure result and prompting user to continue with the generation and run of epanet simulations. Having already created all landzones and ...