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Circle generating Algorithm, Midpoint Circle Algorithm, Computer Graphics
1.INPUT RADIUS R, AND CENTRE (H,K)
X=0
Y=R
Pk=1-R OR 5/4-R
2. REPEAT UNTIL X>Y
3. IF(Pk<0)
X+1
Pk+1=Pk+2X+1
ENDIF
ELSE
X++
Y--
Pk+1=Pk+2X+1-2Y
4. PLOT POINT (X,Y) FOR 8 DIFFERENT OCTANTS
PLOT(X+H,Y+K)
PLOT(Y+H,X+K) ---
5. GOTO STEP 2
6. STOP
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