technical-illustration

name	technical-illustration
description	Techniques and Python script patterns for generating technical exploded-view illustrations, including component layering, annotation leader lines, and isometric projection basics. Use this skill when generating hardware diagrams or exploded views.

Technical Illustration Skill

This skill provides methods for generating technical illustrations, specifically exploded-view diagrams, using Python's Pillow library.

Components of an Exploded View

An exploded-view diagram separates parts of a whole along a common axis (usually vertical or at an angle) to show internal assembly.

Layering Strategy

1. Casing (Top): Usually Corporate Dark or Neutral.
2. Thermal Unit: Below casing, often using secondary accents.
3. PCB (Printed Circuit Board): Below thermal unit, often using tertiary accents.
4. Battery: Below PCB.
5. Interface (Bottom): Connector highlights, primary accents.

Annotation System

• Leader Lines: Thin lines connecting components to labels. Use Muted Mid Gray.
• Title Block: Clear, bold heading in the top-left or specified location.

Python (Pillow) Implementation Pattern

1. Canvas Setup

from PIL import Image, ImageDraw, ImageFont

# Initialize canvas with background identity color
canvas = Image.new('RGB', (2000, 2000), '#FAF9F5')
draw = ImageDraw.Draw(canvas)

2. Drawing Components

Represent hardware parts as stylized geometric shapes (rectangles with rounded corners or trapezoids for perspective).

# Example: Drawing a layer (isometric-style)
def draw_layer(draw, top_y, color, width=600, height=400, offset=100):
    # Stylized trapezoid to simulate perspective
    points = [
        (1000 - width//2, top_y),
        (1000 + width//2, top_y),
        (1000 + width//2 + offset, top_y + height),
        (1000 - width//2 - offset, top_y + height)
    ]
    draw.polygon(points, fill=color, outline='#B0AEA5')

3. Annotations

# Leader line logic
draw.line([(x1, y1), (x2, y2)], fill='#B0AEA5', width=2)
# Label logic (use Poppins if available, else standard)
draw.text((x2 + 10, y2 - 10), "LAYER NAME", fill='#141413')