File size: 3,356 Bytes
3cb99fa | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 | import xml.etree.ElementTree as ET
import cairosvg
from pathlib import Path
def batch_render_kanji(xml_file_path, output_dir="kanji_images_rendered", size=256, bg_color="white"):
"""
Parses a full KanjiVG XML file and renders every kanji to a PNG image
with a specified background color.
Args:
xml_file_path (str or Path): Path to the kanjivg XML file.
output_dir (str or Path): Directory where the PNG images will be saved.
size (int): The width and height of the output PNGs in pixels.
bg_color (str): The background color for the image (e.g., 'white', '#FFFFFF').
Set to None for a transparent background.
"""
output_path = Path(output_dir)
output_path.mkdir(exist_ok=True)
print(f"Output directory set to: {output_path.resolve()}")
if bg_color:
print(f"Background color set to: '{bg_color}'")
else:
print("Background is set to transparent.")
try:
print(f"Loading and parsing XML file: {xml_file_path}...")
tree = ET.parse(xml_file_path)
root = tree.getroot()
except ET.ParseError as e:
print(f"Fatal Error: Could not parse XML file. Details: {e}")
return
except FileNotFoundError:
print(f"Fatal Error: The file was not found at '{xml_file_path}'")
return
kanji_elements = root.findall('.//kanji')
total_kanji = len(kanji_elements)
print(f"Found {total_kanji} kanji elements to render.")
if total_kanji == 0:
print("No kanji elements were found. Please check the XML file content.")
return
for i, kanji_element in enumerate(kanji_elements):
kanji_id = kanji_element.attrib.get('id', f'unknown_{i}')
hex_codepoint = kanji_id.split('_')[-1]
g_element = kanji_element.find('{http://kanjivg.tagaini.net}g') or kanji_element.find('g')
if g_element is None:
print(f"[{i+1}/{total_kanji}] Skipping {kanji_id}: No drawable <g> element found.")
continue
g_string = ET.tostring(g_element, encoding='unicode')
svg_document = f'''<?xml version="1.0" encoding="UTF-8"?>
<svg width="{size}px" height="{size}px" viewBox="0 0 109 109" version="1.1" xmlns="http://www.w3.org/2000/svg">
<g fill="none" stroke="#000000" stroke-width="3" stroke-linecap="round" stroke-linejoin="round">
{g_string}
</g>
</svg>'''
output_filename = output_path / f"U+{hex_codepoint}.png"
try:
# --- MODIFICATION HERE ---
# Added the 'background_color' parameter to the rendering function.
cairosvg.svg2png(
bytestring=svg_document.encode('utf-8'),
write_to=str(output_filename),
background_color=bg_color
)
if (i + 1) % 100 == 0 or i == total_kanji - 1:
print(f"[{i+1}/{total_kanji}] Successfully rendered: {output_filename.name}")
except Exception as e:
print(f"[{i+1}/{total_kanji}] Failed to render {kanji_id}: {e}")
print("\nBatch rendering complete.")
if __name__ == "__main__":
image_directory = "kanji_images"
kanjivg_xml_path = "kanjivg-20220427.xml.xml"
image_size = 1024
bg_color = "white"
batch_render_kanji(kanjivg_xml_path, image_directory, image_size, bg_color)
|