How to canvas 2d api methods in svg export: reference guide
- Step 1Identify the SVG command type — For each path command in your SVG (M, L, C, Q, A, Z), look up its Canvas equivalent. The generated code handles this automatically, but the reference helps when debugging.
- Step 2Check the Canvas context state — Canvas uses a stateful drawing model — ctx.fillStyle, ctx.strokeStyle, and ctx.lineWidth must be set before drawing. The generated code sets these from the SVG source attributes.
- Step 3Use ctx.save() and ctx.restore() for transforms — When drawing multiple shapes with different transforms, wrap each in ctx.save()/ctx.restore() to prevent state leakage between shapes.
Frequently asked questions
Which Canvas methods does the SVG exporter use?+
beginPath, moveTo, lineTo, bezierCurveTo, quadraticCurveTo, arc, arcTo, closePath, fill, stroke, fillStyle, strokeStyle, lineWidth, lineCap, lineJoin, createLinearGradient, createRadialGradient, addColorStop.
Is the Canvas 2D API fully supported in all browsers?+
Yes. All methods used in SVG-to-Canvas export are supported in Chrome 4+, Firefox 2+, Safari 3.1+, and Edge (all versions). Universal support since 2012.
Why does the Canvas rendering look slightly different from the SVG?+
SVG and Canvas handle anti-aliasing, sub-pixel positioning, and gradient colour interpolation slightly differently. The visual difference is usually imperceptible but can be noticeable for very thin strokes.
How does the SVG arc command (A) map to Canvas?+
SVG's A command (elliptical arc) specifies arcs via endpoint notation. The Canvas Exporter converts it to ctx.arc() or a series of ctx.bezierCurveTo() calls, depending on arc complexity.
Privacy first
Every JAD SVG tool runs entirely in your browser using the DOM API and Canvas. Your SVG files never leave your device — verified by zero outbound network requests during processing.