lib/protractor at master · selftiesoftware/lib · GitHub

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# "PROTRACTOR FOR AVIATION USE"

import geometry2d

def d = -128 / 2
def offset = 0.94
def nm = 3.704

#DEGREE TICS
def tic(deg as Number h as Number offset as Number) = {
  def inner = d * offset
  def inner2 = (d * (offset * -1))
  def x1 = cos(radians(deg)) * d
  def y1 = sin(radians(deg)) * d
  def x2 = x1 * (d / y1)
  #TOP AND BOTTOM
  line((x1 * inner / y1) inner x2 d)
  line((x1 * inner / y1) inner2 x2 d * -1)
  #LEFT AND RIGHT
  line((inner) (x1 * inner / y1) d x2)
  line((inner2) (x1 * inner / y1) d * -1 x2)
}

#one degree tics
repeat 45 to 136 using i {
  tic(i d offset)
}

#five degree tics
repeat 45 to 64 using j {
  def five = j * 5
  tic(five d 0.9)
}

#outer rectangle
rectangle(d * -1 d * -1 d d)

#inner rectangle
rectangle((d * offset * -1) (d * offset * -1) d * offset d * offset)

#GRID
repeat -7 to 8 using j {
  def k = j * nm * 2
  def l = (d * -1) - 12
    line(d + 12 k l k)
    line(k d + 12 k l)
}

#RANGE CIRCLES
circle(0 0 nm * 5)
circle(0 0 nm * 10)

#DISTANCE TICS
repeat -6 to 8 using k{
  def l = (k - 0.5) * 2
  line(-3 nm * l 3 nm * l)
  line(nm * l -3 nm * l 3)
}

#BOTTOM
def annotation1(deg as Number h as Number offset as Number) = {
  def inner = d * offset
  def inner2 = (d * (offset * -1))
  def x1 = (cos(radians(deg)) * d) * -1
  def x2 = (cos(radians(deg)) * d)
  def y1 = sin(radians(deg)) * d
  text((x1 * inner / y1) - 4 inner 5 deg - 90)
}

repeat 23 to 32 using l{
  def m = l * 10
  annotation1(m d 0.9)
}

#TOP, 320 - 360
def annotation2(deg as Number h as Number offset as Number) = {
  def inner = d * offset
  def inner2 = (d * (offset * -1))
  def x1 = (cos(radians(deg)) * d) * -1
  def x2 = (cos(radians(deg)) * d)
  def y1 = sin(radians(deg)) * d
  text((x2 * inner / y1) - 4 inner2 - 2 5 deg + 90)
}

repeat 23 to 28 using l{
  def m = l * 10
  annotation2(m d 0.9)
}

#TOP, 0 - 40
def annotation3(deg as Number h as Number offset as Number) = {
  def inner = d * offset
  def inner2 = (d * (offset * -1))
  def x1 = (cos(radians(deg)) * d) * -1
  def x2 = (cos(radians(deg)) * d)
  def y1 = sin(radians(deg)) * d
  text((x2 * inner / y1) - 2 inner2 - 2 5 deg - 270)
}

repeat 28 to 32 using l{
  def m = l * 10
  annotation3(m d 0.9)
}

#LEFT AND RIGHT
def annotation4(deg as Number h as Number offset as Number) = {
  def inner = d * offset
  def inner2 = (d * (offset * -1)) - 5
  def x1 = (cos(radians(deg)) * d) * -1
  def x2 = (cos(radians(deg)) * d)
  def y1 = sin(radians(deg)) * d
  #LEFT
  text(inner ((x2 * inner) / y1 5 deg))
  #RIGHT
  text(inner2 ((x1 * inner) / y1 5 deg - 180))
}

repeat 23 to 32 using l{
  def m = l * 10
  annotation4(m d 0.9)
}

#NSEW
text(-2 (d * -1) - 14 8 "N")
text(-2 d + 10 8 "S")
text((d * -1) - 17 -2 8 "E")
text(d + 13 -2 8 "W")

text((d * -1) - 13 (d * -1) - 11 6 "NE")
text((d * -1) - 13 d + 8 6 "SE")
text(d + 5 d + 8 6 "SW")
text(d + 5 (d * -1) - 11 6 "NW")

#SCALE
text(-13 -44 5 "NM   1 :  500.000")
text(-10 19 5 "5 NM")
text(-12 38 5 "10 NM")

#center hole
circle(0 0 1.3)