On 3/5/2014 9:57 PM, Gerrit Barrere wrote:
I'm new on this subscriber list and don't know the etiquette -- I hope
this is the right way to start a discussion about a potential new
feature. Please let me know if this should be done differently.
Veusz is a fabulous program. It's extremely powerful and aesthetically
beautiful (but you all already know that). I have written a program to
configure the raw data output from my HP impedance analyzer into a form
Veusz will import, including data and labels, so I can get beautiful
plots of the instrument output to put into my lab reports (example
attached). Everything is working perfectly except for one thing.
I would like to see a widget for a "data trace" marker as an element of
a Veusz xy graph. This would be a line or marker which can be slid back
and forth to read out the data at the line position. The readout could
be placed anywhere on the graph. I'm attaching a screen shot of an
application which has this type of function. The vertical line can be
dragged back and forth and the horizontal line follows the data. The
dialog box shows the X and Y data.
Hi Gerrit,
Welcome to the list, and this is certainly the appropriate place to
ask questions or make feature requests. In this particular case, it may
be that Veusz actually already has part of the feature you are looking
for: the crosshair icon on the toolbar (in between the mouse arrow and
the zoom-in icon in the default layout) is a point picker tool. It reads
back the index and value of the selected point in the status bar and
supports navigation using the left/right arrow keys to scan along one
curve and up/down to jump between curves. What it does not do -- but
certainly could be added as a widget -- is give some permanent display
on the plot canvas. For now, you'd need to draw the crosshairs yourself
using a pair of lines and a text label if you want to highlight a
specific point in your lab report.
Regards,
-- BKS
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