StillHammer
acbe1b4769
Remove ClassGenSystem and obsolete tools from tracking, update course content files with latest revisions. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
111 lines
2.9 KiB
Python
111 lines
2.9 KiB
Python
#!/usr/bin/env python3
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"""
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Draw actual quadrilaterals (not rectangles) to match rotated text bboxes.
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"""
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import json
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from pathlib import Path
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from PIL import Image
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from pdf2image import convert_from_path
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from reportlab.pdfgen import canvas
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from reportlab.lib.utils import ImageReader
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from reportlab.pdfbase import pdfmetrics
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from reportlab.pdfbase.ttfonts import TTFont
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from reportlab.lib.colors import red, blue
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import tempfile
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import os
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# Register Chinese font
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try:
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pdfmetrics.registerFont(TTFont('ChineseFont', 'C:/Windows/Fonts/msyh.ttc'))
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font_name = 'ChineseFont'
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except:
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font_name = 'Helvetica'
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# Paths
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json_path = "Raw/DevelopChinese/OCR/听力Intro.json"
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pdf_path = "Raw/DevelopChinese/PDF/听力Intro.pdf"
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output_path = "test_QUADRILATERAL.pdf"
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# Load JSON
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with open(json_path) as f:
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data = json.load(f)
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# Convert PDF to image at 300 DPI (same as OCR)
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print("Converting PDF to image at 300 DPI...")
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images = convert_from_path(pdf_path, dpi=300)
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img = images[0]
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img_width, img_height = img.size
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print(f"Image size: {img_width} x {img_height}")
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# Create PDF
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c = canvas.Canvas(output_path)
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c.setPageSize((img_width, img_height))
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# Draw image
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with tempfile.NamedTemporaryFile(suffix='.png', delete=False) as tmp:
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img.save(tmp.name, 'PNG')
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tmp_path = tmp.name
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c.drawImage(ImageReader(tmp_path), 0, 0, width=img_width, height=img_height)
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# Get page data
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page_data = data['pages'][0]
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details = page_data.get('details', [])
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text_count = 0
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for detail in details:
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text = detail.get('text', '').strip()
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if not text:
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continue
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bbox = detail.get('bbox', [])
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if not bbox or len(bbox) != 4:
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continue
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# bbox is [[x0,y0], [x1,y1], [x2,y2], [x3,y3]] in image coordinates
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# Convert Y (PDF has origin at bottom, image at top)
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points_pdf = []
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for point in bbox:
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x = point[0]
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y = img_height - point[1] # Flip Y
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points_pdf.append((x, y))
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# Draw the actual quadrilateral
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c.setStrokeColor(red)
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c.setLineWidth(0.5)
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# Draw lines connecting all 4 points
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path = c.beginPath()
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path.moveTo(points_pdf[0][0], points_pdf[0][1])
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path.lineTo(points_pdf[1][0], points_pdf[1][1])
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path.lineTo(points_pdf[2][0], points_pdf[2][1])
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path.lineTo(points_pdf[3][0], points_pdf[3][1])
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path.close()
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c.drawPath(path, stroke=1, fill=0)
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# For text, use bottom-left corner (point 3)
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x_text = points_pdf[3][0]
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y_text = points_pdf[3][1]
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# Calculate height from bbox
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min_y = min(p[1] for p in points_pdf)
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max_y = max(p[1] for p in points_pdf)
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height = max_y - min_y
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font_size = max(1, height * 0.7)
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c.setFont(font_name, font_size)
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c.setFillColor(blue)
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c.drawString(x_text, y_text, text)
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text_count += 1
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print(f"Drew {text_count} quadrilaterals")
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c.showPage()
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c.save()
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os.unlink(tmp_path)
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print(f"\nDone! Check {output_path}")
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print("Red quadrilaterals should now EXACTLY match the text areas!")
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