Data commit

Task/Bitmap-Midpoint-circle-algorithm/Scala/bitmap-midpoint-circle-algorithm.scala

@@ -0,0 +1,36 @@
+object BitmapOps {
+   def midpoint(bm:RgbBitmap, x0:Int, y0:Int, radius:Int, c:Color)={
+      var f=1-radius
+      var ddF_x=1
+      var ddF_y= -2*radius
+      var x=0
+      var y=radius
+
+      bm.setPixel(x0, y0+radius, c)
+      bm.setPixel(x0, y0-radius, c)
+      bm.setPixel(x0+radius, y0, c)
+      bm.setPixel(x0-radius, y0, c)
+
+      while(x < y)
+      {
+         if(f >= 0)
+         {
+           y-=1
+           ddF_y+=2
+           f+=ddF_y
+         }
+         x+=1
+         ddF_x+=2
+         f+=ddF_x
+			
+         bm.setPixel(x0+x, y0+y, c)
+         bm.setPixel(x0-x, y0+y, c)
+         bm.setPixel(x0+x, y0-y, c)
+         bm.setPixel(x0-x, y0-y, c)
+         bm.setPixel(x0+y, y0+x, c)
+         bm.setPixel(x0-y, y0+x, c)
+         bm.setPixel(x0+y, y0-x, c)
+         bm.setPixel(x0-y, y0-x, c)
+      }
+   }
+}