The curve selector
context menu gets activated by selecting a curve name with the right
mouse button. On top of the context menu the name of the selected curve
is written which is in focus. All adjustments and visualization changes
are applied to just this curve.
Using the context menu Curve visible the curve can made visible or invisible. While the curve is invisible and some properties gets changed it will be visible afterwards. As sample a invisible curve should be measured, the curve gets visible and the measurement point are displayed.
Selecting Curve line color a color selection dialog pops up to chose the curve color. The selected color gets also used drawing the base line of the vertical scale of this particular curve to get easy color match. This color is used to display the digital numbers and the circle base line of the analog display.
Adjusting Curve line width the curve gets differentiated from the others.
Changing the Curve line type will only small change the visibility. Since the most curves has such small difference between data points there are only small impression changes. This has to be tested individually.
Some battery chargers will drop the charge current for measurement purpose. This might result in bad curve visualization. To make curves more clear it is possible to activate Smooth current drop function. Since the smoothing result depends on curves itself it can be activated or de-activated on demand.
The next block Axis end values manipulates the scales. Automatic
uses the real minimum and maximum values of the curve. Rounded,
rounds depending of the values in use. The selection of starts at
0 can be used together with “rounded” or “automatic”. The starting point
of the scale is set to zero.
While selecting manual a small dialog gets active to enable adjustment
of the end values. Values can not only changed by combo box selection it
can be overwritten as well. Pushing the OK button or hit the enter
button of the keyboard will close the dialog and make the changes
active.
With the menu Axis number format the precision of the displayed values gets
adjusted. To many digits might suggest a precision what is not real by
means of the measurement device itself.
Selecting automatic will adjust this according to the actual displayed value range.
Axis position defines the side where the scale of this measurement is displayed.
The context menu to adjust grid lines enables displaying vertical, time line
and horizontal, for the measurement. The color adjustments enables to
leaf the grid lines in background. For vertical grid lines, time
line related, the “mod 60” reduces the grid lines to minutes (60 sec) or
hours(60 min) depending on the time line scale.
Horizontal grid lines are bound to only one measurement. The curve name used to
adjust this will be displayed. Each second will only draw a grid line
each second major scale mark.
The context menu Measurement it is possible to measure curve points with snapping crossing hairlines. To do this select the menu measure curve point. To move the hairlines position the mouse pointer direct over the vertical line. While the mouse pointer changes to arrows push the mouse button and move the hairlines to the point of interest. Meanwhile the measured value is displayed in the status bar. If the data set description is visible, use context menu, all values of selected measurement values get displayed in table form while measuring.
To measure point difference the difference between two point are measured using two different crossed hairlines. The delta value and unit gets displayed in the status bar.
As measurement hairlines black and blue hairlines are displayed. Adjust both as described before to measure a single curve point value. Especially in zoomed curved this makes sense. As additional information the starting point of the zoomed area is displayed.
The last sections in the context menu are used to copy selected curves into
the compare window Copy to curve compare. The last entry allows
to clean the curve compare view by selecting Clean curve compare.
This entry gets active when at least one curve is within this area.
Hint : The actual release allows comparing curves of same measurement unit, like measurements from a battery tken over the year. It is senseless to compare voltage with height as example. In case of none matching curves the application will display a warning message.
If there are curves of similar type an extra selectable entry within the curve-selector will be displayed. Selecting this entry the scales of the curves will be merged while synchronizing the end values. As sample voltage curves of Lithium cells are named. The comparison of the two following screen shots should make this more clear.
This will make more room for the curve display itself and the minimum and maximum values are the same. Through this the curves are easy comparable and a manual adjustment using the context menu is obsolete.
Hint : The synchronization of curves needs to be configured using the device properties editor (refer to measurement properties).