We have changed the coloring plan of markers in the real-time RDAHMM portlet, so that now the colors describes the state change information about each station, rather than which network they belong to. Now we have three different colors: red for state change within last 2 hours, yellow for state change within last 1 day, and green for no state change within last 1 day.
We use red for last 2 hours because there is a lag between the time stamp of the real-time data and the "current" time when the data is received. For example, at 14:10pm, we might just receive a station's gps data with a time stamp of 13:05. Therefore, the evaluation results of a station always show its state change information of an hour ago or so.
In order to expose the state change information to the portlet, the real-time RDAHMM service saves this information for each network in a separate file in the same directory as the plots, so that the portlet can retrieve them with URLs.
To show which network each station belongs to, we add a hint tag to the marker of each station, witch shows its name and the name of its network.
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