import argparse sample_usage = """example: python traitograph.py --names a b c --values 1 2 3 --max-value 4 python traitograph.py -o "character.png" --names n1 n2 n3 n4 --values 1 3 2 3 --max-value 4 python traitograph.py --names curious organized energetic friendly confident --values 5 4 3 4 2 --max-value 7 -d True """ parser = argparse.ArgumentParser(description="Generate a chart showing character traits.", epilog=sample_usage, formatter_class=argparse.RawDescriptionHelpFormatter) parser.add_argument("--out-file", "-o", dest="out_file_name", metavar="out_file", default="chart.png", help="The file in which the image will be written. (Defaults to \"chart.png\")") parser.add_argument("--names", "-n", dest="names", required=True, nargs="+", metavar="name", help="The names of the character traits") parser.add_argument("--values", "-v", dest="values", required=True, nargs="+", type=int, metavar="value", help="The values for the character traits") parser.add_argument("--max-value", "-m", dest="max_value", required=True, type=int, metavar="max", help="The maximum value for any trait") parser.add_argument("--foreground", "-fg", dest="foreground", nargs=3, type=int, default=[0,0,0], metavar="channel", help="The foreground color of the chart. (Values from 0 to 255 -- defaults to [0,0,0])") parser.add_argument("--backgournd", "-bg", dest="background", nargs=3, type=int, default=[255,255,255], metavar="channel", help="The background color of the chart. (Values from 0 to 255 -- defaults to [255,255,255])") parser.add_argument("--trait-color", "-lc", dest="trait_color", nargs=4, type=int, default=[0,190,190,100], metavar="channel", help="The color of the colored part of the chart. (Values from 0 to 255 -- defaults to [0,190,190,100])") parser.add_argument("--outer-padding", "-op", dest="outer_padding", type=int, default=20, metavar="pixel_count", help="The additional padding applied around the chart. (Defaults to 20)") parser.add_argument("--line-spacing", "-ls", dest="line_spacing", type=int, default=40, metavar="pixel_count", help="The additional padding applied around the chart. (Defaults to 40)") parser.add_argument("--dot-size", "-ds", dest="dot_size", type=int, default=2, metavar="dot_size", help="The size of the dots. (Defaults to 2)") parser.add_argument("--display", "-d", dest="display", type=bool, default=False, metavar="display", help="If True, shows the generated plot in a window. (Defaults to False)") args = parser.parse_args() import math import os os.environ["PYGAME_HIDE_SUPPORT_PROMPT"] = "hide" import pygame from pygame import gfxdraw # to have the first vertex at the top rather than the bottom, otherwise # odd-numbered n-gons look like they are upside down circle_offset = math.pi def generate_n_gon_points(n, center, radii): alpha_step = math.tau / n if type(radii) == int: radii = [radii for i in range(n)] else: assert(len(radii) == n) # go clockwise, so flip the sign in the sin and cos, functions (I know # unnecessary for cos, but looks better when aligned :) return [(int(math.sin(-i * alpha_step + circle_offset) * radii[i] + center[0]), # x coordintate int(math.cos(-i * alpha_step + circle_offset) * radii[i] + center[1])) # y coordintate for i in range(n)] def generate_plot_surface(dimension_count, values, max_value, line_spacing, foreground, background, trait_color, dot_size): # figure out exactly, how big the surface needs to be, by looking at the # outer most points radius = line_spacing * max_value points = generate_n_gon_points(dimension_count, (0,0), radius) max_x = max((point[0] for point in points)) min_x = -max_x # symmetry: fist point is always straight up min_y = -radius # fist point is always straight up max_y = max((point[1] for point in points)) padding = dot_size//2 + 4 surface_size = (max_x - min_x + 2*(padding), max_y - min_y + 2*(padding)) plot_center = [surface_size[0] // 2, radius + padding] # generate the surface surface = pygame.Surface(surface_size) surface.fill(background) transparent_overlay = pygame.Surface(surface_size, pygame.SRCALPHA) transparent_overlay.set_alpha(100) #TODO(Felix): make this adjustable font = pygame.font.Font(pygame.font.get_default_font(), int(line_spacing*0.4)) for i in range(max_value): points = generate_n_gon_points(dimension_count, plot_center, radius) pygame.draw.aalines(surface, foreground, True, points) for point in points: gfxdraw.filled_circle(surface, point[0], point[1], dot_size, foreground) gfxdraw.aacircle(surface, point[0], point[1], dot_size, foreground) textsurface = font.render(f"{max_value-i}", True, foreground) text_location = (points[0][0] - textsurface.get_size()[0] // 2, points[0][1] + int(line_spacing * 0.2)) surface.blit(textsurface,text_location) radius -= line_spacing # draw in the trait polygon radii = [value * line_spacing for value in values] trait_points = generate_n_gon_points(dimension_count, plot_center, radii) print(trait_points) trait_color_full_alpha = trait_color[:3] for point in trait_points: gfxdraw.filled_circle(surface, point[0], point[1], 4, trait_color_full_alpha) pygame.draw.aalines(surface, trait_color_full_alpha, True, trait_points) # draw the transparent polygon pygame.draw.polygon(transparent_overlay, trait_color, trait_points) surface.blit(transparent_overlay, (0,0)) return surface def plot(names, values, max_value, foreground, background, trait_color, out_file_name, display, outer_padding, line_spacing, dot_size): number_dimensions = len(names) assert(number_dimensions == len(values)) assert(max_value > 0) pygame.init() plot_surface = generate_plot_surface(number_dimensions, values, max_value, line_spacing, foreground, background, trait_color, dot_size) final_surface = plot_surface pygame.image.save(final_surface, out_file_name) if display: window = pygame.display.set_mode(final_surface.get_size()) pygame.display.set_caption("Traitograph") window.blit(final_surface, (0,0)) pygame.display.update() running = True while running: for event in pygame.event.get(): if event.type == pygame.QUIT or (event.type == pygame.KEYDOWN and event.key == pygame.K_ESCAPE): running = False else: print("done") pygame.quit() plot(**vars(args))