10-17-2022, 07:29 PM
Are you talking about this?
Try all integers but nothing beats this in speed and accuracy not even memory methods:
Code: (Select All)
Sub circleBF (cx As Long, cy As Long, r As Long, klr As _Unsigned Long)
rsqrd = r * r
y = -r
While y <= r
x = Sqr(rsqrd - y * y)
Line (cx - x, cy + y)-(cx + x, cy + y), klr, BF
y = y + 1
Wend
End Sub
Try all integers but nothing beats this in speed and accuracy not even memory methods:
Code: (Select All)
'the standard for a filled circle
Sub fcirc (CX As Long, CY As Long, R As Long, C As _Unsigned Long)
Dim Radius As Long, RadiusError As Long
Dim X As Long, Y As Long
Radius = Abs(R): RadiusError = -Radius: X = Radius: Y = 0
If Radius = 0 Then PSet (CX, CY), C: Exit Sub
Line (CX - X, CY)-(CX + X, CY), C, BF
While X > Y
RadiusError = RadiusError + Y * 2 + 1
If RadiusError >= 0 Then
If X <> Y + 1 Then
Line (CX - Y, CY - X)-(CX + Y, CY - X), C, BF
Line (CX - Y, CY + X)-(CX + Y, CY + X), C, BF
End If
X = X - 1
RadiusError = RadiusError - X * 2
End If
Y = Y + 1
Line (CX - X, CY - Y)-(CX + X, CY - Y), C, BF
Line (CX - X, CY + Y)-(CX + X, CY + Y), C, BF
Wend
End Sub
b = b + ...