objective-c - 在iPhone上以增加lineWidth绘制线

Question

我正在通过在CALayer上绘制路径来在iOS上画一条线。如何用增加的lineWidth(笔划宽度)描边此线，以使该行的左端比右端细？ (因为我要使用strokeEnd属性，所以它实际上必须是直线，而不是形状或闭合路径。)

谢谢您的帮助!

Answer 1

使用绘图功能。刚开始习惯会很烦人，但是它确实可以做到。如果您需要其他帮助，请发表评论

-(void)draw{
     float lineHeight = 5;//change this as you see fit, like set it equal to an incrementing/decrementing variable of your choice...
     glEnable(GL_LINE_SMOOTH);
     glLineWidth(lineHeight); // change this as you see fit
     glColor4ub(255,255,255,255); // change these as you see fit :)
     ccDrawLine(ccp(10,310), ccp(30,310));  // these numbers are probably off, you'll   have to mess with these to get it in the right position :)
        [super draw];
        }