Analoging a Digital Clock

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This simple project shows how use the internal trig functions to draw an analog clock. We will be showing it on an OLED display.

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The first function calculates and plots dots around the clock. Small dots for minutes and larger dots for hours.

# Draw the clock face
fn face()
  # Draw the small dot on the clock face
  for i=0 to 60
    a1[0]=25*cos(i*_p/30):a1[1]=25*sin(i*_p/30)
    Pixel(1,64+a1[0],32+a1[1])
  next

  # Draw the large dots for every hour
  for i=0 to 12
    a1[0]=25*cos(i*_p/6):a1[1]=25*sin(i*_p/6)
    Circle(1,64+a1[0],32+a1[1],2)
  next
fend

Now we can show the clock hands.

# Calculate and draw the new hand positions
fn time()
  a0[0]=16*cos(_h*_p/6):a0[1]=16*sin(_h*_p/6)
  a1[0]=20*cos(_m*_p/30):a1[1]=20*sin(_m*_p/30)
  a2[0]=25*cos(_s*_p/30):a2[1]=25*sin(_s*_p/30)
  if _s=60:_s=0:_m=_m+1:end
  if _m=60:_m=0:_h=_h+1:end
  if _h=12:_h=0:end
  _s=_s+1
  
  Line(1,64,32,64+a0[0],32+a0[1])
  Line(1,64,32,64+a1[0],32+a1[1])
  Line(1,64,32,64+a2[0],32+a2[1])
fend

Here is the entire code.

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