CUSTOMIZE THE PLOTS

When pressing the Graphics->Plot->Control in the igr menubar the Plot Control Dialog appears.
This Dialog is used to customize the current plot.

When the Scale in the Panel Control Dialog is set to common, the y-axis (ordinate) scale settings (ScaleY, LinLogY, y-axis scale minimum, y-axis scale maximum) explained below for the current plot applies on all plots in the current panel.

The options in the Plot Control Dialog :

ScaleY

The ScaleY radio button determine the maximum and minimum of the y-axis (ordinate) scale. When it is on preset the program uses the scaleMin and scaleMax which were delivered by the data base server. When the toggle button auto is pressed (default) the igr client computes the maximum and minimum from the data values. When manual is pressed the user inputs the maximum and minimum vales by using this dialog.

LinLogY

This radio buttons determine if the data is plotted at a linear or logarithmic y-axis (ordinate) scale. When the preset button is selected (default) the scale type which was delivered by the data base server is used. When the linear button is pressed the data is always plotted at a linear scale. When the log button is pressed the data is (if possible) plotted at a logarithmic scale.

PlotType

The PlotType radio buttons determines the plot type. The default is normal line plot. In the scatter plot each data point is drawn as a cross/dot. In the hodogram an arrow is drawn from each data point to the next. The marker option buttons (at the bottom of this dialog) are used to select between cross and dot in the scatter plot). When the from zero option is selected the plot is drawn as vertical bars from the zero line to the data point. Then it is useful to press the Graphics->Plot->ColorBelowZero button and select another color for the data below zero.

ScaleX

The ScaleX radio button determine the maximum and minimum of the x-axis (abscissa) scale. They are used if we are plotting data instead of time as x-values.
( Example in the Calculator: p0y = q0 and p0x = q1 )
The radio buttons have similar functions as the ScaleY radio buttons explained above. In the case of plotting spectra (x-axis in Hz), the ScaleX might also be useful. The ScaleX buttons have no effect when the x-axis scale is the time axis.

LinLogX

This radio buttons determine if the data is plotted at a linear or logarithmic x-axis (abscissa) scale. The radio buttons have similar functions as the LinLogY buttons explained above. The LinLogX is also used at the same circumstances as the ScaleX above. The LinLogX buttons have no effect when the x-axis scale is the time axis.

y-axis scale minimum and maximum

The scales y-axis scale minimum and y-axis scale maximum are used to set the maximum and minimum of the y-axis (ordinate) for the current plot. If higher accuracy is needed, or if the wanted maximum or minimum is outside the scale range, the user can input the numbers in the text lines below the scales. The mouse cursor must (usually) be inside the line you are writing. The scales are sensitive when the toggle button ScaleY manual is on.

x-axis scale minimum and maximum

The scales x-axis scale minimum and x-axis scale maximum are used to set the maximum and minimum of the x-axis (abscissa) for the current plot. The scales are sensitive when the toggle button ScaleX manual is on. The x-axis scale minimum and x-axis scale maximum have no effect when the x-axis scale is the time axis.

linewidth

The linewidth option button is used to set the line width for the current plot. The selections are 1 (default), 2, 3, 4 .. 11. This correspond to the line width 0.2 (default), 0.6, 1.0, 1.4, ... 4.2 in the postscript plot. (This option is very useful for plotting more visible data in the postscript plot.)

marker

The marker option button are used to select between dot and cross (default) for the scatter plot.

dotsize

The dotsize option button is used to set the dot size for the current plot. This is used for the plotting of dots in the scatter plots. The selections are 1 (default), 2, 3, 4 .. 11.

maximum time gap

The text line: maximum time gap is used to set a maximum time gap between two adjacent samples for a continuous line between the samples. If the time gap is greater than the maximum time gap in seconds set in this text line, a continuous line is not drawn between the two samples. When the value set in this text line is zero (0.0, default) it is ignored.

axis right

When the Use right axis in the Page Control Dialog is selected, the program makes space for an y-axis axis on the right side. In this case the user can press the axis right button to have the y-axis on the right side for the current plot. In this case the y-axis axis for this plot is on the right side of the panel.

y-axis labels

Often the labels and grids on the y-axis are not where you want it to be. When the y-axis labels pushbutton is selected, the user can input the vaues of the y-axis labels in the text line. Each label is separated with one or more space characters.
As an example: If the user inputs '-10 -5 0 5 10' in this text line, the y-axis labels will be -10, -5, 0, 5 and 10.
If logarithmic y-axis scale is selected, se above, the y-axis labels written in this text line are ignored.
The manually selected y-axis labels are also ignorded for spectrograms.