'How to plot a function with canvas in Flutter & Dart
I want to plot a function with canvas in Flutter/Dart. Let's say we have an expression like that: y = 2x^2 + 4x. I have already tried drwaing a lot of little filled circles one near to another and this gives to me the desidered output. But I'm still searching for a more professional and right way to do that. Any help will be very appreciated, thank you!
Solution 1:[1]
If you want a fancy chart I would recommend fl_chart package. You could precalculate a list of values from your function and let fl_chart display them.
You could also use the CustomPaint widget and a CustomPainter to draw these values in different ways.
You could simply draw a line from the current point to the next point which results in a (possibly not smooth) graph. Or add them to a curve with some bezier like interpolation to get a smooth graph without increasing the samples to much.
Sources
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Source: Stack Overflow
| Solution | Source |
|---|---|
| Solution 1 | MindStudio |