I was wondering if there is a tool/software (tablet or laptop with touch screen) which lets me draw a chart/diverse shapes or just a line that converts/brings the imperfect hand-drawing automatically into a perfect shape. For example, I draw a line with my stylus and then it's converted to an exact straight line. what I'm trying to achieve in principle is whether it's possible to speed up chart creation (e.g. instead of using powerpoint)