Instantly convert origami crease pattern data files into high-quality, printable SVG vector files. Customize fold styles, colors, and line properties in your browser.
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Technical Specification: Origami Crease Pattern SVG Converter
Overview
A client-side web application designed to parse raw text-based origami crease pattern (.cp) data and render it as a high-fidelity, interactive SVG. The tool provides users with a clean, professional interface to customize fold lines (mountain/valley) and export the final result as a standard .svg file.
Feature List
- File Import: Support for drag-and-drop or file system upload of text-based pattern files.
- Real-time Rendering: Instant SVG rendering of patterns on an interactive HTML5 SVG canvas.
- Fold Customization: Independent controls for mountain and valley folds (stroke color, dash length, dash offset, stroke width).
- Interactive Controls: Zoom, pan, and center-view functions for handling complex patterns.
- Export Engine: Generation of a clean, valid SVG file via Blob URLs, ensuring no server-side processing.
- Data Validation: Real-time feedback for invalid file structures or parsing errors.
UI Layout
- Header: Clean, minimalist header featuring the tool title and a link to the 'Export' settings.
- Sidebar (Left): A collapsible control panel containing:
- File upload area (drag-and-drop).
- 'Style Settings' section (Accordion style: Stroke weights, Colors, Dash styles).
- 'Export' button (Primary action).
- Main Stage (Center/Right): A large, responsive SVG container with a light-gray background to contrast with the crease lines. Includes 'Fit to Screen' and 'Reset View' controls.
Visual Design & Aesthetic
- Palette:
- Primary Background: #FFFFFF (White)
- UI Accents: #2563EB (Professional Blue) for buttons and active states.
- Secondary Accents: #64748B (Slate) for text and UI borders.
- Canvas Background: #F8FAFC (Subtle light gray).
- Typography: Sans-serif, humanistic typeface (e.g., Inter, system-ui).
- Animations: Smooth 200ms transitions for sidebar toggling and modal display. Subtle hover states (shadow lift, color darkening) for buttons.
Technical Directives (Mandatory)
- Single File Architecture: All HTML, CSS, and JS must be inside one
.htmlfile. - No localStorage/Storage: You are strictly forbidden from using
localStorage,sessionStorage, or cookies. Maintain state using a plain JavaScript object within the global or module scope. - Iframe Compatibility: The app is running in a null-origin iframe. Do not use
alert(),confirm(), orprompt(). Build custom modals using<dialog>or<div>overlays. - Security: Ensure all file parsing is synchronous or managed within a Web Worker if necessary to prevent UI blocking. Sanitize all input before rendering to SVG to prevent XSS.
- Dependencies: Use only reliable CDNs (e.g., Tailwind CSS for styling). Do not use build tools like Webpack or NPM modules that require installation.
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Frequently Asked Questions
Everything you need to know about using this application.
What file formats does this Origami Crease Pattern generator support?
This tool is designed to parse standard text-based crease pattern (.cp) data, which typically includes coordinate definitions for vertices and connectivity data for edges. By utilizing a robust in-browser parser, the tool maps these coordinates directly into scalable vector paths. Because the application operates entirely within your browser, it handles data locally without uploading files to a server. This ensures that your private design data remains strictly on your machine, providing a secure environment for testing and visualizing your complex origami patterns.
How can I customize the appearance of my crease patterns?
The application provides a comprehensive settings panel that allows you to adjust the visual properties of your exported SVG. You can independently control the color, dash patterns, and stroke weight for mountain and valley folds, ensuring that your output is tailored for specific printing or fabrication needs. Furthermore, you can toggle the visibility of specific layers or annotations within the crease pattern preview. Once you are satisfied with the visual aesthetic of the layout, the 'Export' feature generates a clean, standardized SVG file ready for immediate use in vector graphics software like Adobe Illustrator or Inkscape.
Is this tool safe to use with proprietary designs?
Yes, security is a core pillar of this application. By adhering to a client-side only architecture, no data is ever transmitted to a remote database or server. When you drag and drop your crease pattern file into the browser, all processing happens locally within your own memory space, ensuring your designs are never exposed to third parties. Since the application does not utilize cookies or local storage to manage your session, every time you refresh the page, the application state is completely reset. This 'stateless' design ensures that no trace of your design activity persists after you close the browser tab, offering complete privacy.
Can I edit the pattern after uploading it?
While this tool primarily functions as a converter and visualizer, it includes features to manipulate the global style settings of the uploaded data. You can scale the entire pattern, adjust the aspect ratio, and modify line properties to better visualize the final output before exporting the vector file. For deep editing, we recommend using this tool to verify and format your designs into clean SVG files, which can then be imported into your preferred professional vector editing software. The focus here is on rapid, high-fidelity conversion and visual confirmation, enabling a seamless bridge between raw pattern data and printable documentation.
