For Vinyl we will be doing a lot of audio data parsing and manipulation. This means we will be looking at large arrays of values and making changes for them. So to do this I created an array visualization tool that can take an array and visualize it along a graph. I also wanted to be able to scroll across the data, zoom in/out and mouse over a specific value. I also wanted to be able to do this for multiple arrays either on different graphs or the same graphs.
For this I first looked for tools that already did this. The main one I looked at was Excel. But i found it would have been a challenge to dynamically make the graphs based off of the data, and different graph combinations of arrays.
Another tool i found was a C# project called ZedGraph that did a nice display of an array, and it was open source. So I used that to display the graphs. With that my tool can now display one graph with N number of arrays on it. It also can display 4 graphs at the same time.
It overall works well, but I am running into one problem I will need to look into the ZedGraph code to fix. The problem is that I am trying to draw hundreds of thousands of values, and it is slow. So i need to change the code so that when you are zoomed out far enough that you are trying to draw too much data, it will only draw some of it. The dission i have is how to bring down the data. I could display every X values. so if i want to show 50 data points and have 170. i could just display every 4th point. The other way is to average the values around it.
I think I will take the every X values so that i don't end up averaging the Waveform into 0. But I will see how it works.
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