I need an algorithm for rendering soft paint brush strokes

Question

I have an array of mouse points, a stroke width, and a softness. I can draw soft circles and soft lines. Which algorithm should I use for drawing my array of points? I want crossed lines to look nice as well as end points. JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

I would definitely choose the Bezier for that purpose, and in particular I will implement the piecewise cubic Bezier - it is truly easy to implement and grasp and it is widely used by 3D Studio max and Photoshop. Here is a good source for it: http://local.wasp.uwa.edu.au/~pbourke/surfaces_curves/bezier/cubicbezier.html Assuming that you have an order between the points, in order to set the four control points you should go as follows: I define the tangent between point P[i] and point P[i+1] T1 = (P[i+1] - P[i-1]) T2 = (P[i+2] - P[i]) And to create the piecewise between two points I do the following: Control Point Q1: P[i] Control Point Q2: the point lying along the tangent from Q1 => Q1 + 0.3T1 Control Point Q3: the point lying along the tangent to Q4 => Q4 - 0.3T2 Control Point Q4: P[i+1] The reason I chose 0.3T is arbitrary in order to give it enough 'strength' but not too much, you can use more elaborated methods that will take care of acceleration (C2 continuity) as well. Enjoy