Customising the storm trackĬustomise the graph with a Graph Plotting icon by setting the First, read the CSV file in the very same way as before but this time, on top of date and time, you also need to read latitude and longitude into vectors:īy returning the visual definition you built a Macro behaves as if it were a real Input Visualiser Symbol Plottingicon. from these minimum values you can build the curve data to plot.Ĭreate new Macro and edit it.compute the minimum of the pressure in the box.read the forecast mean sea level data for the box for the corresponding time.you read the track points from the CSV file.Since this task is fairly complex you will use a Macro for it. the y-axis minimum value to 940 and its maximum is 1000Ĭomputing the minimum pressure along the track.With a new Cartesian Viewicon, set up a view to cater for the graph showing the mean sea level pressure values in hPa by setting So save the Macro and drag it into the plot to see the labels appearing along the track. First, read the CSV file in with the Table Reader (see its documentation here):īy returning the visual definition your Macro behaves as if it were a real Symbol Plotting icon. Since it would require too much editing you will learn a better (programmatic) way of doing it by using Metview Macro.Ĭreate new Macro and edit it. This can be done with a Symbol Plotting icon by specifying the list of labels you want to plot into the map. To finalise the track plot you need to add the date/time labels to the track points. the track points to be white filled circles (their marker index is 15) with red outline.The storm track in its current form does not look great so you need to customise it with a Graph Plotting icon by setting the Now drag you r Table Visualiser icon the plot to overlay the mean sea level forecast with the track. carefully specify the table delimiter and header information by setting.select the columns holding the latitude and longitude by their index.If you open this file you will see that it contains the date, time and geographical coordinates of the track points.Ĭreate a new Table Visualiser icon and set it to visualise your CSV file: The storm track data is stored in the CSV file called sandy_track.txt. The fields you visualised were taken from the model run at 0UTC and containing 12 hourly forecast steps from 0 to 120 hours.
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