misc/holesforpoles3.py at master · morphex/misc · GitHub

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#!/usr/bin/python3

# Small utility script, to find the sweet spot for placing two poles, and
# making it look natural when adding a third pole.
#
#
# Rough sketch (Outer Margin):
#
# Partial
#
# -----------------------
# OM    *        *     OM
#
# Whole
#
# -------------------------------
# OM    *        *        *    OM
#

whole = 7.1 # metres
partial = 4.38 # metres

# Both sides, metres
margin = 0.1
max_margin = 1.75

# How much to increment when searching for a right length
search_increment = 0.01

numbers = []

while True:
    whole_ = (whole - margin) / 2
    partial_ = (partial - margin) / 1
    numbers.append(((whole_ - partial_), whole_, partial_, margin))
    margin += search_increment
    if margin > max_margin: break

best_match = min(numbers, key=lambda x: abs(x[0]))
print("Best match, margin of error: %f" % best_match[0])
print("Space between poles for whole: %f" % best_match[1])
print("Space between poles for partial: %f" % best_match[2])
outer_margin = best_match[3]
print("Outer margin: %f, %f" % (outer_margin, outer_margin/2))
print("Specified length for partial: %f" % partial)
print("Partial: Margin + space between poles: %f" %
        (best_match[2] + best_match[3]))
print("Specified length for whole: %f" % whole)
print("Whole: Margin + space between poles: %f" %
        ((best_match[1] * 2) + best_match[3]))