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MultipleXAxes macro command

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Macro commands may be used either in macros or by sending the commands to DPlot via dynamic data exchange (DDE). Some commands are valid only in macros (noted by Macros Only). Commands sent to DPlot via DDE must be enclosed by square brackets [     ]. Macro commands should not include the brackets.

Command parameters shown in the descriptions below are placeholders for the actual values. Command parameters are either numeric values, equations that evaluate to numbers, or character strings. Character string parameters are always bound by double quotation marks. Equations must be preceded by an equals sign (=).

The pipe symbol (|) in the command syntax indicates that a parameter is optional, and should not be included in your macro unless otherwise noted.

All indices into arrays are 1-based, e.g. Curve1=1 refers to the first curve in a plot.

A 0x prefix for numbers in the descriptions below indicates hexadecimal notation; e.g. 0x0010 = 16.

JR/Viewer indicates that the command is supported by DPlot Jr or DPlot Viewer.
JR/Viewer indicates that the command is NOT supported by DPlot Jr or DPlot Viewer.



JR   Viewer

Controls the appearance of the X axis. For a non-zero state, a second X axis is drawn at the top of the plot with a scale determined by the relationship X2=A+B*X1, where X1 refers to the primary X axis at the bottom of the plot and X2 to the second X axis. For state=0, no second X axis is drawn. The placement of the labels and/or tick marks on the second X axis is influenced by IndependentTicks.



You may use equations in place of numeric entries for A & B. For example, if your input X consists of calendar dates and times with a constant interval of 30 minutes, then:




will produce a second X axis showing the 0-based index of the data point.


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