···

       
164
       
164
       
 
       
                centerX - R * scale,

     

       
165
       
165
       
 
       
                centerY,

     

       
166
       
166
       
 
       
                R * scale,

     

       
167
       
167
       
-
       
                -Math.PI / 3,

     

       
168
       
168
       
-
       
                Math.PI / 3,

     

       
167
       
167
       
+
       
                -Math.PI / 2.75,

     

       
168
       
168
       
+
       
                Math.PI / 2.75,

     

       
169
       
169
       
 
       
            );

     

       
170
       
170
       
 
       
        } else {

     

       
171
       
171
       
 
       
            ctx.arc(

     

       
172
       
172
       
 
       
                centerX + R * scale,

     

       
173
       
173
       
 
       
                centerY,

     

       
174
       
174
       
 
       
                R * scale,

     

       
175
       
175
       
-
       
                (2 * Math.PI) / 3,

     

       
176
       
176
       
-
       
                (4 * Math.PI) / 3,

     

       
175
       
175
       
+
       
                -Math.PI / 2.75 + Math.PI,

     

       
176
       
176
       
+
       
                Math.PI / 2.75 + Math.PI,

     

       
177
       
177
       
 
       
            );

     

       
178
       
178
       
 
       
        }

     

       
179
       
179
       
 
       
        ctx.stroke();

     
···

       
571
       
571
       
 
       


     

       
572
       
572
       
 
       
    function update() {

     

       
573
       
573
       
 
       
        canvas.width = canvas.offsetWidth;

     

       
574
       
574
       
-
       
        canvas.height = canvas.offsetHeight * 0.8;

     

       
574
       
574
       
+
       
        canvas.height = canvas.offsetHeight;

     

       
575
       
575
       
 
       
        ctx.clearRect(0, 0, canvas.width, canvas.height);

     

       
576
       
576
       
 
       
        ctx.fillStyle = "#f0f0f0";

     

       
577
       
577
       
 
       
        ctx.fillRect(0, 0, canvas.width, canvas.height);