Difference between revisions of "RTPlotter"
HectoPascal (talk | contribs) (Real time plotter) |
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From the <tt>messages</tt> window, select the field '''pos_x''' in the '''NAVIGATION''' message and drop it on the Plotter. Do the same with '''pos_y''', you should get something similar to | From the <tt>messages</tt> window, select the field '''pos_x''' in the '''NAVIGATION''' message and drop it on the Plotter. Do the same with '''pos_y''', you should get something similar to | ||
[[ | [[Image:Plotter.png|Plotter pos_x pos_y]] | ||
Delete the '''pos_y''' curve by selecting it in the '''Curves''' menu and drop the '''desired_x''' from the '''DESIRED''' message: | Delete the '''pos_y''' curve by selecting it in the '''Curves''' menu and drop the '''desired_x''' from the '''DESIRED''' message: | ||
[[ | [[Image:Plotter_desired_x.png|Plotter pos_x pos_y]] | ||
It is also possible to draw curves with different scales in the same window. Delete both curves and '''Reset''' (or open a new plotter from the '''File''' menu) and drop '''desired_altitude''' from the '''DESIRED''' message. Enter '''0.01''' (to convert cm into m) in the '''Scale''' entry box and drop '''alt''' from '''GPS''' on the '''Scale''' label. | It is also possible to draw curves with different scales in the same window. Delete both curves and '''Reset''' (or open a new plotter from the '''File''' menu) and drop '''desired_altitude''' from the '''DESIRED''' message. Enter '''0.01''' (to convert cm into m) in the '''Scale''' entry box and drop '''alt''' from '''GPS''' message '''on''' the '''Scale''' label. | ||
[[plotter_desired_alt.png|Plotter pos_x pos_y]] | [[Image:plotter_desired_alt.png|Plotter pos_x pos_y]] | ||
===More Tuning=== | ===More Tuning=== | ||
Revision as of 13:55, 17 March 2007
Real Time Plotter
The plotter (in sw/logalizer/) is a facility to plot real time data broadcasted on the Paparazzi network bus. Main features:
- Drag&Drop from the messages window of any field
- Multi-curves, constant curves
- Configurable update delay and memory size
- Basic scaling mechanism
First Try
Launch a simulation with a messages window (for example the Versatile Sim session provided as an example). Note that the messages can be simply launched with
sw/ground_segment/tmtc/messages -c telemetry:* -c ground
fron a shell. Launch the plotter with (or configure it in your session)
sw/logalizer/plotter
From the messages window, select the field pos_x in the NAVIGATION message and drop it on the Plotter. Do the same with pos_y, you should get something similar to
Delete the pos_y curve by selecting it in the Curves menu and drop the desired_x from the DESIRED message:
It is also possible to draw curves with different scales in the same window. Delete both curves and Reset (or open a new plotter from the File menu) and drop desired_altitude from the DESIRED message. Enter 0.01 (to convert cm into m) in the Scale entry box and drop alt from GPS message on the Scale label.
More Tuning
A constant curve can be added by entering a float value in the Constant box.
The update time can be set with the slider; it should be smaller than the period of the faster data you want to plot.
The number of points of each curve can be set from 10 to 1000.