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Charts Definition Language (CDL): Difference between revisions
Charts Definition Language (CDL) (view source)
Revision as of 15:01, 20 May 2021
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The following graphs are possible | The following graphs are possible | ||
Line, SpLine, Area, Scatter, Column, ColumnRange | Line, SpLine, Area, Scatter, Column, ColumnRange | ||
All graph types can be combined in a chart except for Scatter. | All graph types can be combined in a chart except for Scatter. | ||
ColumnRange only works for DAILY and ALL range specifiers. If the Max and Min lines of the range must be shown, they need to be specified as a separate line. The range can be specified for either Min or Max, the range will automatically be applied and no line will be shown. The ColumnRange is valid for all variables in the datafile with a Max/Min range: ''Temperature, Dewpoint, FeelsLike'' (and other derivatives), ''Barometer'' and ''Humidity''. Other variables will generate an error. | ColumnRange only works for DAILY and ALL range specifiers. If the Max and Min lines of the range must be shown, they need to be specified as a separate line. The range can be specified for either Min or Max, the range will automatically be applied and no line will be shown. The ColumnRange is valid for all variables in the datafile with a Max/Min range: ''Temperature, Dewpoint, FeelsLike'' (and other derivatives), ''Barometer'' and ''Humidity''. Other variables will generate an error. | ||
==== Axis Types ==== | |||
The following Axis are possible. | |||
Temp, Wind, Distance, Hours, Solar, UV, Rain, Rrate, Pressure, Humidity, DegreeDays, EVT | |||
This only has meaning if there is an EVAL with a valid expression present. As an EVAL may modify the value of the plot variable to something completely different, the original Axis belonging to that plot variable may be useless or scale wrongly. Therefore you can choose your own Axis. If there is no valid equation, a warning is given and no axis is generated. | |||
In future a generic (without title or unit) Axis will selectable to accommodate plotting in combination with other variables. | |||
==== Explanation of the definition Keywords ==== | ==== Explanation of the definition Keywords ==== | ||
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#RECENT: Defines the variable to be governed by the CMX parameter ''GraphHours'' and are similar to the CMX RECENT graphs (though not equal). | #RECENT: Defines the variable to be governed by the CMX parameter ''GraphHours'' and are similar to the CMX RECENT graphs (though not equal). | ||
#AS: Defines the type of charting for that variable. | #AS: Defines the type of charting for that variable. | ||
#EVAL [ ]: Defines an expression for the plot variable. The equation must be placed between the square brackets, space has no value here (does not act as separator). | |||
#COLOUR: Defines the colour of that variable. | #COLOUR: Defines the colour of that variable. | ||
#ZINDEX: Defines the zIndex plane for that variable. | #ZINDEX: Defines the zIndex plane for that variable. | ||