2014/10/16 上午 08:21:41

android Programming Glossary: quadto

http://stackoverflow.com/questions/6041190/cardio-graph-for-android

0 yourValueAt 0 for int sec 1 sec 30 sec path.lineTo sec yourValueAt sec canvas.drawPath path paint You may also use quadTo or cubicTo instead of lineTo. If you want your graph to have a realtime animation effect i.e. sliding to the left while..

Android How to draw a smooth line following your finger

http://stackoverflow.com/questions/8287949/android-how-to-draw-a-smooth-line-following-your-finger

paint.setStrokeWidth 2 paint.setColor Color.WHITE Another option is to connect the points with iterpolation using the quadTo method public void onDraw Canvas canvas Path path new Path boolean first true for int i 0 i points.size i 2 Point point.. points.get i if first first false path.moveTo point.x point.y else if i points.size 1 Point next points.get i 1 path.quadTo point.x point.y next.x next.y else path.lineTo point.x point.y canvas.drawPath path paint This still results in some sharp..

Can I serialize the paths drawn on canvas for redrawing the paths on relaunch of the application

http://stackoverflow.com/questions/8832931/can-i-serialize-the-paths-drawn-on-canvas-for-redrawing-the-paths-on-relaunch-of

think we just need to store a map of Actions and Points. We need path.moveTo int x int y path.lineTo int x int y path.quadTo int x1 int y1 int x2 int y2 and path.reset methods for scribbling. Actions in this case being lineTo moveTo quadTo reset.. int x1 int y1 int x2 int y2 and path.reset methods for scribbling. Actions in this case being lineTo moveTo quadTo reset and points being the corresponding points. I took two arrays 1 for x and another for y. For quadTo x1 y1 x2 y2 we.. lineTo moveTo quadTo reset and points being the corresponding points. I took two arrays 1 for x and another for y. For quadTo x1 y1 x2 y2 we need two points for reset we need no points and for other we need a single point x y . We can think actions..

Bezier curve and canvas

http://stackoverflow.com/questions/9993030/bezier-curve-and-canvas

start point to end point. How I can do this android android canvas share improve this question You can use Path.quadTo or Path.cubicTo for that. Examples can be found in the SDK Examples FingerPaint . In your case you would simply need to.. FingerPaint . In your case you would simply need to calculate the middle point and pass then your three points to quadTo .. Some code for you x1 y1 and x3 y3 are your starting and ending points respectively. create the paint object only once..