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<< Click to Display Table of Contents >> Navigation: Explain™ Control Language > Library Routines > Curve classes > class OCV > Ocv.SetAxis() |
Define the real-time display of an Ocv object.
Associates an axis with a data column in the object. Controls linear/logarithmic display formatting and allows labeling of the axis.
You must call Ocv.SetAxis() for each of the axes in the real-time plot. For a y- and y'-versus-x plot, you need three calls to Ocv.SetAxis().
Ocv.SetAxis(AxisNo, Source, Scale, MinVal, Label, Units)
AxisNo |
INDEX |
Use the constants below to define which axis is being configured: •X_AXIS = x-axis •Y_AXIS = y-axis (y-vs-x plot) or lower y (y, y' vs x) •Z_AXIS = upper y-axis (y, y' vs x only) |
Source |
INDEX |
The column number containing the data to be plotted or use the predefined constants defined in Ocv.DataCol(). |
Scale |
INDEX |
•LIN_AXIS = The axis is linear. •LOG_AXIS = The axis is logarithmic. |
MinVal |
REAL |
Minimum value used in prevention of "ugly" plot scaling. MinVal is used differently depending on Scale setting: •On a linear axis, this is the minimum resolution of the plot. The range of values shown on the axis cannot be smaller than MinVal. This prevents excessively fine scaling when plotting data where all the values are identical or very similar. •On a logarithmic axis, this value is substituted for zeroes in the data. This prevents infinite logarithm values. |
Label |
STRING |
The label used for the axis. Short names (one or two character labels) are preferred. |
Units |
STRING |
The units used for the axis. Short names (one or two character labels) are preferred. |