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46 lines
1.3 KiB
46 lines
1.3 KiB
const VF = Vex.Flow;
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// Create an SVG renderer and attach it to the DIV element named "boo".
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var div = document.querySelector("body")
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var renderer = new VF.Renderer(div, VF.Renderer.Backends.SVG);
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// Size our SVG:
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renderer.resize(500, 500);
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// And get a drawing context:
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var context = renderer.getContext();
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// Create a stave at position 10, 40 of width 400 on the canvas.
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var stave = new VF.Stave(10, 40, 400);
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// Add a clef and time signature.
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stave.addClef("treble").addTimeSignature("4/4");
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// Connect it to the rendering context and draw!
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stave.setContext(context).draw();
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var notes = [
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// A quarter-note C.
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new VF.StaveNote({clef: "treble", keys: ["c/4"], duration: "q" }),
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// A quarter-note D.
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new VF.StaveNote({clef: "treble", keys: ["d/4"], duration: "q" }),
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// A quarter-note rest. Note that the key (b/4) specifies the vertical
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// position of the rest.
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new VF.StaveNote({clef: "treble", keys: ["b/4"], duration: "qr" }),
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// A C-Major chord.
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new VF.StaveNote({clef: "treble", keys: ["c/4", "e/4", "g/4"], duration: "q" })
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];
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// Create a voice in 4/4 and add the notes from above
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var voice = new VF.Voice({num_beats: 4, beat_value: 4});
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voice.addTickables(notes);
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// Format and justify the notes to 400 pixels.
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var formatter = new VF.Formatter().joinVoices([voice]).format([voice], 400);
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// Render voice
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voice.draw(context, stave);
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