portrait_of_the_theatre

# Visualizes number of visitors and performances of Landestheater Linz,
# inspired by Hermann Painitz' "Porträt der Neuen Galerie der Stadt Linz",
# see virtual tour: https://tinyurl.com/lentos-3d-2021-Painitz
# Copyright 2023 Roland Richter                          [Processing.py]

from __future__ import division, print_function


# Data source: https://www.statistik.at/statistiken/bevoelkerung-und-soziales/kultur/theater-und-musik
data = {
    1981: {"season": "1980/81", "performances": 681, "visitors": 241611, },
    1986: {"season": "1985/86", "performances": 659, "visitors": 208027, },
    1991: {"season": "1990/91", "performances": 702, "visitors": 226105, },
    1996: {"season": "1995/96", "performances": 725, "visitors": 233555, },
    2001: {"season": "2000/01", "performances": 754, "visitors": 190443, },
    2006: {"season": "2005/06", "performances": 903, "visitors": 234125, },
    2011: {"season": "2010/11", "performances": 815, "visitors": 224886, },
    2012: {"season": "2011/12", "performances": 794, "visitors": 226048, },
    2013: {"season": "2012/13", "performances": 838, "visitors": 245188, },
    2014: {"season": "2013/14", "performances": 878, "visitors": 322192, },
    2015: {"season": "2014/15", "performances": 976, "visitors": 373654, },
    2018: {"season": "2017/18", "performances": 840, "visitors": 306943, },
    2019: {"season": "2018/19", "performances": 888, "visitors": 326298, },
    2020: {"season": "2019/20", "performances": 572, "visitors": 200420, },
    2021: {"season": "2020/21", "performances": 244, "visitors":  74437, }
}


def setup():
    size(900, 500)

    textSize(18)
    textAlign(CENTER, CENTER)

    # Determine the first and last year for which data is available
    global first_year, last_year
    first_year = sorted(data.keys())[0]
    last_year = sorted(data.keys())[-1]

    # Find the minimum and maximum visitor count, ...
    global min_visitors, max_visitors
    min_visitors = max_visitors = data[first_year]["visitors"]

    for year in data.keys():
        visitors = data[year]["visitors"]
        if visitors < min_visitors:
            min_visitors = visitors
        if data[year]["visitors"] > max_visitors:
            max_visitors = visitors

    # ... and the minimum and maximum performances count
    global min_perfs, max_perfs
    min_perfs = max_perfs = data[first_year]["performances"]

    for year in data.keys():
        perfs = data[year]["performances"]

        if perfs < min_perfs:
            min_perfs = perfs
        if perfs > max_perfs:
            max_perfs = perfs


def draw():
    background("#FFB7C5")   # background colour 'Cherry blossom pink'

    global first_year, last_year
    global min_visitors, max_visitors, min_perfs, max_perfs

    for year in data.keys():
        visitors = data[year]["visitors"]
        performances = data[year]["performances"]

        # TRY to switch x and y here
        x = map(performances, min_perfs, max_perfs, 0.05*width, 0.95*width)
        y = map(year, first_year, last_year, 0.9*height, 0.1*height)

        # TRY to think of another way how to compute the diameter
        diam = map(sqrt(visitors),
                   sqrt(min_visitors), sqrt(max_visitors),
                   0.1*mouseX, 0.5*mouseX)

        # QUIZ How do I visualize the number of performances and visitors?
        # QUIZ Why do I use sqrt() -- the square root -- here?!

        fill(25, 25, 112, 128.0)   # 'Midnight blue' with opacity 50 %
        circle(x, y, diam)

        if mousePressed:
            fill(255)
            text(data[year]["season"], x, y-18)
            text(data[year]["performances"], x, y)
            text(data[year]["visitors"], x, y+18)

# ----------------------------------------------------------------------
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.