Android graphics: a path with smooth curves?

Question

I want to draw a diagram for the function y = x ^ 2 as follows:

but the curve is not smooth, since it is a collection of connected lines.

How to make the curve smoother?

thank

Answer 1

You should use Path.quadTowith only one Path. If you are already doing this, I suggest increasing the number of points on the chart.

Move to the beginning Path:

Path.moveTo(x, y)

in the middle:

Path.quadTo(lastX, lastY, (x + lastX)/2, (y + lastY)/2)

and in the end:

Path.lineTo(x, y)