Add free coordinate with label in logarithmically scaled diagrams

[Phex]

Hi Brad, thanks for helping. I considered this solution as well, but for my application it has a little but remarkable flaw: the coordinate box does not move with the sepcified coordinates. Try changing the coordinates to e.g. x=0.1,y=0.8. The marker changes position, but the coordinate label stays where it is. The variables that define the coordinate label position are D2CurveFrameDeltaX and D2CurveFrameDeltaY, but these are bonded to the report layout in percent. The tricky and probably almost impossible task would be to link the logarithmic scaling of the diagram to the percental scaling of the layout, if I want to see the coordinate label always moving together with the marker. Any ideas? rgds, Phex

[Brad_Turpin]

Hi Phex,

How many of these events are there?  Could you put the label off the graph at a standard position and just let the array move around?  Have you considered marking these events with markers or vertical lines instead?

Brad Turpin

DIAdem Product Support Engineer

National Instruments

[Phex]

Hi Brad, The number of events is variable. I do call the placement of a coordinate in a loop and the number of loop runs is dependent on user input. It all works perfectly well for my transient curves in linear scaling, but not for my spectral plots in logarithmical scaling. What do you mean exactly with marking my events with markers? The marker is there and it is at the correct position, but the coordinate label is not. Putting the labels off the graph is not really an option, as the number of coordinates varies and having all the arrows around would cause pretty chaotic plots. rgds, Phex

[Brad_Turpin]

Hi Phex,

I'm not convinced that having a variable number of arrows is a good idea anyway-- this is a picture of what I meant about the vertical lines, plus a summary table of peak info.

Brad Turpin

DIAdem Product Support Engineer

National Instruments

[Phex]

Hi Brad, that could be an alternative. I assume you created a new tick channel for the vertical lines? rgds, Phex

[Brad_Turpin]

Hi Phex,

There are several options there in REPORT.  Here's the whole applciation for you to copy from.  Note that you have to register the JCamp-DX DataPlugin before the application will run.  Note also that this application uses the Interaction mode in VIEW-- you will have to click on the "end Interaction" icon to cause the paused script to recommence.

Brad Turpin

DIAdem Product Support Engineer

National Instruments