2-d Histogram
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Hi folks,
I'm developing a private-licensed application for operating a high-performance scientific instrument. We need to generate the following plots with a high degree of performance:
- 1-d histogram
- 2-d histogram (heatmap where bins are changed color based on occupation)
- bar chart
- complex histogram consisting of bars that represent 1-d histogram, arranged horizontally
All need to have update frequencies of no less than 15 Hz and preferably 60 Hz.
My plan is to write the User Interface in QML, and then write the backend in Qt/C++. My hope was to develop the backend to run all the math separately in slave threads and update dynamically using QML's engine.set_context_property(). QML side widgets would run a timer to update, and a local object would be present to manage bandwidth.
Question: a lot of good work has been done on developing these items in Qt Widget space (see Qwt). I sure would like to not have to custom-roll every single one of these plots. Does anyone have any suggestions about the best way to proceed?
best,
j -
