ios - ObjectiveC UIBezierPath path close issue -

i try hexagon , have issue in close path.

here hexagon, , close path not smooth.

here drawing code

    cashapelayer* shapelayer = [cashapelayer layer];     uibezierpath* path = [uibezierpath bezierpath]; //  [path setlinejoinstyle:kcglinejoinround]; //  [path setlinejoinstyle:kcglinejoinbevel];     [path setlinejoinstyle:kcglinejoinmiter]; //  cgfloat dashes[] = {6, 2}; //  [path setlinedash:dashes count:2 phase:0]; //  [path stroke];      cgfloat radians = 100.0;     nsinteger num = 6;     cgfloat interval = 2*m_pi/num;      nsinteger initx = radians*cosf(interval);     nsinteger inity = radians*sinf(interval);      [path movetopoint:cgpointmake(location.x - semiwidth + initx, location.y - semiheight + inity)];     for(int i=1; i<=num; i++){         cgfloat x = radians*cosf(i*interval);         cgfloat y = radians*sinf(i*interval);         [path addlinetopoint:cgpointmake(location.x - semiwidth + x, location.y - semiheight + y)];     }     [path closepath];     shapelayer.path = [path cgpath];     shapelayer.strokecolor = [[uicolor yellowcolor] cgcolor];     shapelayer.fillcolor = [[uicolor browncolor] cgcolor];     shapelayer.linewidth = 4.0f; 

also try use different options following no luck

[path setlinejoinstyle:kcglinejoinround]; [path setlinejoinstyle:kcglinejoinbevel]; [path setlinejoinstyle:kcglinejoinmiter]; 

the problem you're not making first point (the point move-to) same way you're making other points (the points line-to).

nsinteger initx = radians*cosf(interval); nsinteger inity = radians*sinf(interval); [path movetopoint:cgpointmake(     location.x - semiwidth + initx, location.y - semiheight + inity)]; 

instead, make first point parallel others:

cgfloat x = radians*cosf(0*interval); cgfloat y = radians*sinf(0*interval); [path movetopoint:cgpointmake(     location.x - semiwidth + x, location.y - semiheight + y)]; 

that's same you'll later i*interval, , emphasize parallelism, i've written 0 0*interval. here's ended with: