Interactive SVG Path Data Editor and Visualizer

SVG Path Data Editor and Visualizer Specification

Overview

A client-side web application designed for developers and designers to write, test, and visualize SVG path strings (the 'd' attribute). The tool provides a split-pane layout to ensure that code changes and visual output are synchronized.

Layout Structure

• Header: Contains the descriptive title and a reset workspace button.
• Primary Interface (Split Pane):
  • Left Sidebar: A code-editor pane featuring syntax highlighting for SVG path commands (M, L, H, V, C, S, Q, T, A, Z).
  • Right Viewport: A canvas area displaying a dynamic coordinate grid with the rendered path highlighted in a high-contrast accent color.
• Control Panel (Bottom):
  • Viewport zoom controls (10% to 500%).
  • Coordinate system toggle (Show/Hide axis numbers).
  • Path export button (Copies the optimized string to the clipboard).

Visual Design & Animations

• Color Palette: Minimalist aesthetic using neutral grays (#F4F4F4) for the background, deep charcoal (#333) for text, and a distinct primary blue (#0066FF) for the SVG path stroke.
• Animations:
  • Smooth path transition animations when updating coordinates (using CSS transitions for stroke-dashoffset).
  • Subtle hover states on the coordinate grid showing exact X/Y coordinates as crosshairs.

Interactive Features

1. Real-time Parsing: As the user types in the left pane, the SVG engine updates the path render immediately without refreshing the page.
2. Error Highlighting: Syntax errors in the path string (e.g., malformed coordinates) are underlined in red with a hover-tooltip explaining the error.
3. Drag-to-Update: Advanced users can click and drag anchor points on the canvas to automatically update the coordinate values in the text pane.
4. Viewport Scaling: Responsive grid that adapts to the viewport size to ensure complex paths remain visible.
5. Preset Library: A dropdown menu featuring common SVG shapes (Triangle, Heart, Star) that injects valid path data into the editor for learning purposes.