--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/scripts/generate_shields.py Mon Sep 14 22:55:45 2020 +0300
@@ -0,0 +1,122 @@
+#!/usr/bin/env python3
+
+# Generate highway shields as SVG files in symbols/shields.
+
+from __future__ import print_function
+import copy, lxml.etree, math, os
+
+
+def main():
+ namespace = 'http://www.w3.org/2000/svg'
+ svgns = '{' + namespace + '}'
+ svgnsmap = {None: namespace}
+
+ config = {}
+ config['base'] = {}
+
+ # font_height and font_width are determined by trial and error
+ config['base']['rounded_corners'] = 2
+ config['base']['font_height'] = 11
+ config['base']['font_width'] = 0.85
+ config['base']['padding_x'] = 8
+ config['base']['padding_y'] = 2
+ config['base']['stroke_width'] = 1
+
+ # Fall back colours used if no colours are defined in road-colours.yaml for a road type.
+ config['base']['fill'] = '#f1f1f1'
+ config['base']['stroke_fill'] = '#c6c6c6'
+
+ config['global'] = {}
+
+ config['global']['types'] = ['valtatie', 'kantatie', 'seututie', 'yhdystie', 'eurooppatie']
+ config['global']['max_width'] = 48
+ config['global']['output_dir'] = '../symbols/shields/' # specified relative to the script location
+
+ config['valtatie'] = {'fill': '#ff163c', 'stroke_fill': 'white'}
+ config['kantatie'] = {'fill': '#ffd90f', 'stroke_fill': 'black', 'stroke_width': 0.5}
+ config['seututie'] = {'fill': 'white', 'stroke_fill': 'black', 'stroke_width': 0.5}
+ config['yhdystie'] = {'fill': '#005eb7', 'stroke_fill': 'white'}
+ config['eurooppatie'] = {'fill': '#00997c', 'stroke_fill': 'white'}
+
+ if not os.path.exists(os.path.dirname(config['global']['output_dir'])):
+ os.makedirs(os.path.dirname(config['global']['output_dir']))
+
+ height = 1
+ shield_size = 'base'
+
+ dirpath = os.path.join(os.path.dirname(__file__), config['global']['output_dir'])
+ try:
+ os.makedirs(dirpath)
+ except FileExistsError:
+ pass
+
+ for width in range(1, config['global']['max_width'] + 1):
+ for shield_type in config['global']['types']:
+
+ # merge base config and specific styles
+ vars = copy.deepcopy(config['base'])
+ if shield_type in config:
+ for option in config[shield_type]:
+ vars[option] = config[shield_type][option]
+
+ shield_width = 2 * vars['padding_x'] + math.ceil(vars['font_width'] * width)
+ shield_height = 2 * vars['padding_y'] + math.ceil(vars['font_height'] * height)
+
+ svg = lxml.etree.Element('svg', nsmap=svgnsmap)
+ svg.set('width', '100%')
+ svg.set('height', '100%')
+ svg.set('viewBox', '0 0 ' + str(shield_width + vars['stroke_width']) + ' ' + str(shield_height + vars['stroke_width']))
+
+ if vars['stroke_width'] > 0:
+ offset_x = vars['stroke_width'] / 2.0
+ offset_y = vars['stroke_width'] / 2.0
+ else:
+ offset_x = 0
+ offset_y = 0
+
+ background = lxml.etree.Element(svgns + 'rect')
+ background.set('x', str(offset_x))
+ background.set('y', str(offset_y))
+ background.set('width', str(shield_width))
+ background.set('height', str(shield_height))
+ background.set('id', 'shield-background')
+ background.set('style', 'fill:' + vars['fill'])
+ svg.append(background)
+
+ shield = lxml.etree.Element(svgns + 'rect')
+ shield.set('x', str(offset_x + 0.5))
+ shield.set('y', str(offset_y + 0.5))
+ shield.set('width', str(shield_width - 1))
+ shield.set('height', str(shield_height - 1))
+ if vars['rounded_corners'] > 0:
+ shield.set('rx', str(vars['rounded_corners']))
+ shield.set('ry', str(vars['rounded_corners']))
+ shield.set('id', 'shield')
+
+ stroke = ''
+ if vars['stroke_width'] > 0:
+ stroke = 'stroke:' + vars['stroke_fill'] + ';stroke-width:' + str(vars['stroke_width']) + ';'
+
+ shield.set('style', 'fill:' + vars['fill'] + ';' + stroke)
+
+ svg.append(shield)
+
+ filename = shield_type + '_' + str(width) + 'x' + str(height)
+ if shield_size != 'base':
+ filename = filename + '_' + shield_size
+
+ filename = filename + '.svg'
+
+ # save file
+ try:
+ shieldpath = os.path.join(os.path.dirname(__file__), config['global']['output_dir'] + filename)
+ print('Writing', os.path.realpath(shieldpath))
+ shieldfile = open(shieldpath, 'wb')
+ shieldfile.write(lxml.etree.tostring(svg, encoding='utf-8', xml_declaration=True, pretty_print=True))
+ shieldfile.close()
+ except IOError:
+ print('Could not save file ' + filename + '.')
+ continue
+
+if __name__ == "__main__":
+ main()