G-Code Mountain

mountain.py

def load_blocks(path):
    height = {}
    with open(path, 'r') as fp:
        for line in fp:
            x, y, z = map(int, line.strip().split('|'))
            height[(x, z)] = max(y, height.get((x, z), 0))
    return height

def main():
    height = load_blocks('blocks.txt')
    max_height = max(height.values())
    x_size = 5.0
    y_size = 5.0
    z_size = 7 / 8.0
    z_clear = 0.5
    size = 64
    pz = 0.0
    print 'G17'
    print 'G0Z%f' % z_clear
    print 'M3'
    print 'M8'
    for x in range(-size, size + 1):
        tx = x_size * (x + size) / (size * 2)
        # raise bit
        print 'G0Z%f' % z_clear
        # move to start of row (y=0)
        if x % 2:
            print 'G0X%0.6fY%0.6f' % (tx, y_size)
        else:
            print 'G0X%0.6fY0' % tx
        pz = z_clear
        for y in range(-size, size + 1):
            if x % 2:
                y = -y
            ty = y_size * (y + size) / (size * 2)
            z = height.get((x, y), 0)
            tz = z_size * z / max_height - z_size
            print 'G1X%0.6fY%0.6fZ%0.6fF75' % (tx, ty, tz)
            # # raise z if needed
            # if tz > pz:
            #     print 'G1Z%fF75' % tz
            # # move to xy
            # print 'G1X%0.6fY%0.6fF75' % (tx, ty)
            # # lower z if needed
            # if tz < pz:
            #     print 'G1Z%fF75' % tz
            pz = z
    print 'M5'
    print 'M9'

if __name__ == '__main__':
    main()