Hello,

We have to implement a spectrogram type of plot. We need to display time on X-axis and frequency on Y-axis. The values need to be color coded with respect to the amplitude value.The color coding criteria should be displayed in the legend. For this I was evaluating the Grid Surface | Contour chart in Nevron examples.

An example of the spectrogram plot is in the attachment.

I have the following questions
1)Can we use the contour chart to implement the spectrogram?
2)The nevron example displays the X-axis and Depth axis. We want to display X and Y-axis.
3)In the nevron example,the method set value of NGridSurfaceData takes indexes as parameter which are of type integer. We would like to set date/time for X-axis and double values for Y-axis.
4)How can we display the color coding as a range of values in the legend. Ex: 0.1 - 25.3 Green, 50.3 - 100 Red.?

Thank you very much for answering these questions.

Best Regards,
Siraj