summaryrefslogtreecommitdiffstats
path: root/examples/script/context2d/scripts/arc.js
diff options
context:
space:
mode:
Diffstat (limited to 'examples/script/context2d/scripts/arc.js')
-rw-r--r--examples/script/context2d/scripts/arc.js30
1 files changed, 30 insertions, 0 deletions
diff --git a/examples/script/context2d/scripts/arc.js b/examples/script/context2d/scripts/arc.js
new file mode 100644
index 0000000000..650bcda49c
--- /dev/null
+++ b/examples/script/context2d/scripts/arc.js
@@ -0,0 +1,30 @@
+var canvas = document.getElementById('tutorial');
+
+ // Make sure we don't execute when canvas isn't supported
+ if (canvas.getContext){
+
+ // use getContext to use the canvas for drawing
+ var ctx = canvas.getContext('2d');
+
+ // Draw shapes
+ for (i=0;i<4;i++){
+ for(j=0;j<3;j++){
+ ctx.beginPath();
+ var x = 25+j*50; // x coordinate
+ var y = 25+i*50; // y coordinate
+ var radius = 20; // Arc radius
+ var startAngle = 0; // Starting point on circle
+ var endAngle = Math.PI+(Math.PI*j)/2; // End point on circle
+ var clockwise = i%2==0 ? false : true; // clockwise or anticlockwise
+
+ ctx.arc(x,y,radius,startAngle,endAngle, clockwise);
+
+ if (i>1){
+ ctx.fill();
+ } else {
+ ctx.stroke();
+ }
+ }
+ }
+
+ }