「VexFlow タブ譜」の版間の差分

提供：yonewiki
353行目: 353行目:
stave4.draw();
stave4.draw();


const stave5 = new Stave(stave1.x, stave1.y + 200, nHeadMargin + nStaveWidth).setContext(ctx);
const stave5 = new Stave(stave1.x, stave1.y + 140, nHeadMargin + nStaveWidth).setContext(ctx);
stave5.addClef("treble").setContext(ctx);
stave5.addClef("treble").setContext(ctx);
stave5.addTimeSignature('4/4').setContext(ctx);
stave5.addTimeSignature('4/4').setContext(ctx);

2024年4月3日 (水) 18:15時点における版

VexFlow 使い方に戻る。

概要

　まともにVexFlowを使う気がないので、VexFlowを実直に学びたいという人向けの記事ではなくなる予定です。VexFlow応用しかやりません。覚えてもしょうがないことはやらないのがここの管理人の方針なのです。まずはタブ譜を表示するだけのことをやってみましょう。応用技をつかえば、ベースのタブ譜も描けるようになる優れた技術です。自称ですけど。


　ちな、2024年4月上旬、まだ書きかけの記事です。

　

タブ譜


　コードは以下のとおりです。 


<div id="yonet202403Mid_Output01"></div>
<script>
///////////////////////
(function(){
class Position {
  constructor(x = 0, y = 0) {
    this.x = x;
    this.y = y;
  }
}
var VF = Vex.Flow;
const Instrument1 = new Position();
const Instrument2 = new Position();
const Instrument13 = new Position();
const Instrument17 = new Position();
const Stave2Pos = new Position();
const Stave3Pos = new Position();
const Stave6Pos = new Position();
const Stave10Pos = new Position();
const Stave11Pos = new Position();

const note17_1_0 = new Position();

var shift13;
var shift17;

function insertTextToSVG(options) {

    var textContent = options.textContent;
    var strID = options.strID;
    var Stave_x = options.Stave_x || 0;
    var Stave_y = options.Stave_y || 0;
    var isOffset_x_abs = options.IsOffset_x_Abs || false;
    var Stave_x_Offset = options.Stave_x_Offset || 0;
    var Stave_y_Offset = options.Stave_y_Offset || 0;
    var StaveWidth = options.StaveWidth || 0;
    var StaveHeight = options.StaveHeight || 0;
    var StaveVerticalScale = options.StaveVerticalScale || 0;
    var fontSize = options.fontSize || 40;
    var fontFamily = options.fontFamily || "Bravura, Arial";
    var shift_x = options.shift_x || [0];
    var offset_sum = 0;
    var Stave_x_Offset_Value = 0;
    var Stave_y_Offset_Value = 0;
    var last_Stave_x_Offset = 0;
    var last_Stave_y_Offset = 0;
    var last_textContent = "";
    shift_x.forEach(function(offset, index) {
        offset_sum = offset_sum + offset;
        var newText = document.createElementNS('http://www.w3.org/2000/svg', 'text');
        newText.setAttribute('id', strID + '_' + index); // テキスト要素にIDを付ける
        newText.setAttribute('x', 0);
        newText.setAttribute('y', 0);
        newText.setAttribute('font-family', fontFamily);
        newText.setAttribute('font-size', fontSize);
        newText.setAttribute('fill', 'black');


        if(typeof textContent === "string"){
          newText.textContent = textContent;
        }
        else{
          if(textContent.length - 1 < index){
            newText.textContent = last_textContent;
          }
          else{
            newText.textContent = textContent[index];
            last_textContent = textContent[index];
          }
        }

        if(Stave_x_Offset.length - 1 < index){
          Stave_x_Offset_Value = last_Stave_x_Offset;
        }
        else{
          if(Stave_x_Offset.length >= 2){
            Stave_x_Offset_Value = Stave_x_Offset[index];
            last_Stave_x_Offset = Stave_x_Offset[index];
          }
          else{
            Stave_x_Offset_Value = Stave_x_Offset;
          }
        }

        if(Stave_y_Offset.length - 1 < index){
          Stave_y_Offset_Value = last_Stave_y_Offset;
        }
        else{
          if(Stave_y_Offset.length >= 2){
            Stave_y_Offset_Value = Stave_y_Offset[index];
            last_Stave_y_Offset = Stave_y_Offset[index];
          }
          else{
            Stave_y_Offset_Value = Stave_y_Offset;
          }
        }
        svgElement.appendChild(newText);
        (function() {
            var textWidth = newText.getBBox().width;
            var textHeight = newText.getBBox().height;
            var horizontalScale;
            if (typeof StaveWidth === 'undefined' || StaveWidth == 0) {
                horizontalScale = 1;
            } 
            else {
                horizontalScale = StaveWidth / textWidth;
            }
            var verticalScale;
            if (typeof StaveHeight === 'undefined' || StaveHeight == 0) {
                verticalScale = 1;
            } 
            else if (StaveVerticalScale != 0) {
                verticalScale = StaveVerticalScale;
            } 
            else {
                verticalScale = StaveHeight / textHeight;
            }
            if(isOffset_x_abs){
              var StavePos_x = offset.x + Stave_x_Offset_Value;
              var StavePos_y = offset.y + Stave_y_Offset_Value;
            }
            else{
              var StavePos_x = Stave_x + Stave_x_Offset + offset_sum;
              var StavePos_y = Stave_y + Stave_y_Offset;
            }

            newText.setAttribute('transform', 'translate(' + StavePos_x + ',' + StavePos_y + ') scale(' + horizontalScale + ',' + verticalScale + ')');
        })();

        svgElement.appendChild(newText);
    });
}

var allUniqueIds = [];
(function(){
function addShift(notes, arrx = [], arry = []) {
 
  let tempnote;
  let retShift = [];
  
  for(let i = 0; i < arrx.length || i == 0; i++){
    const pos = new Position();
    //notesのchildrenの各要素について処理
    if(arrx.length === 0){
      tempnote = notes;
    }
    else{
      tempnote = notes[arrx[i]];
      temp_y = arry[i];
    }
    pos.x = tempnote.getAbsoluteX();
    pos.y = tempnote.getStave().getYForLine(temp_y);

    retShift.push(pos);
  }
  return retShift;
}

var UniqueIds;
function getUniqueNoteheadIds(notes, arr = []) {
    //すべてのidを格納するためのセットを作成
    let tempnote;
    uniqueIds = new Set();
    for(let i = 0; i < arr.length || i == 0; i++){
    //notesのchildrenの各要素について処理
      if(arr.length === 0){
        tempnote = notes;
      }
      else{
        tempnote = notes[arr[i]];
      }
      tempnote.children.forEach(child => {
        //typeが"notehead"であるかチェックし、idを取得
        if (child.attrs){
          if(child.attrs.type === "NoteHead") {
            uniqueIds.add(child.attrs.id);
          }
        }
      });
    }
    // セットを配列に変換して戻り値として返す
    return Array.from(uniqueIds);
}

function updateAllUniqueIds(UniqueIds) {
    // allUniqueIdsにUniqueIdsを追加または結合
    if (allUniqueIds.length === 0) {//allUniqueIdsはグローバルな変数
      // allUniqueIdsが空の場合、UniqueIdsをそのままコピー
      allUniqueIds = [...UniqueIds];//スプレッド演算子で要素の中身を書き出す。
    } else {
      UniqueIds.forEach(id => {
        if (!allUniqueIds.includes(id)) {
            allUniqueIds.push(id);
        }
      });
    }
    // 更新されたallUniqueIdsを戻り値として返す
    return allUniqueIds;
}

function dotted(staveNote, noteIndex = -1) {
  if (noteIndex < 0) {
    Dot.buildAndAttach([staveNote], {
      all: true
    });
  } 
  else {
    for(noteIndexValue of noteIndex){
      Dot.buildAndAttach([staveNote], {
        index: noteIndexValue
      });
    }
  }
  return staveNote;
}

const {
  Factory,
  Stave,
  StaveNote,
  Formatter,
  Voice,
  StaveTie,
  BarLine,
  Beam,
  Dot,
  StaveConnector,
  Modifier,
  RenderContext,
  TextDynamics,
  Articulation,
  TextNote,
  Crescendo,
  Renderer
} = Vex.Flow;

let nscale = 0.64;
let nwidth = 1040;
let nheight = 1120;

let nHeadMargin = 70;
let nStaveWidth = 350;

const f = new Factory({ 
  renderer: { elementId: 'yonet202403Mid_Output01', width: nwidth, height: nheight * nscale }
  });
const ctx = f.getContext();
ctx.scale(nscale, nscale);

const defaultStyle = {
  lineWidth: ctx.lineWidth,
  strokeStyle: ctx.strokeStyle,
};

for (let i = 0; i <= nwidth * (1 / nscale); i += 10) {
  ctx.beginPath();
  ctx.moveTo(0 + i, 0);
  ctx.lineTo(0 + i, nheight);
  if (i % 100 === 0){
    ctx.setLineWidth(1);
    ctx.setStrokeStyle('rgba(200, 200, 200, 0.8)');
  }
  else{
    ctx.setLineWidth(0.5);
    ctx.setStrokeStyle('rgba(230, 230, 230, 0.8)');
  }
  ctx.stroke();
}

for (let i = 0; i <= nheight; i += 10) {
  ctx.beginPath();
  ctx.moveTo(0, i);
  ctx.lineTo(nwidth * (1 / nscale), i);
  if (i % 100 === 0){
    ctx.setLineWidth(1);
    ctx.setStrokeStyle('rgba(200, 200, 200, 0.8)');
  }
  else{
    ctx.setLineWidth(0.5);
    ctx.setStrokeStyle('rgba(230, 230, 230, 0.8)');
  }
  ctx.stroke();
}

ctx.lineWidth = defaultStyle.lineWidth;
ctx.strokeStyle = defaultStyle.strokeStyle;

const stave1 = new Stave(80, 150, nHeadMargin + nStaveWidth).setContext(ctx);
stave1.setClef("treble").setContext(ctx);
stave1.setTimeSignature('4/4').setContext(ctx);
stave1.setMeasure(1);
stave1.draw();

Instrument1.x = stave1.x - 30;
Instrument1.y = stave1.y + 90; 

const notes1 = [
  new StaveNote({ keys: ["c/4"], duration: "4" }),
  new StaveNote({ keys: ["d/4"], duration: "4" }),
  new StaveNote({ keys: ["e/4"], duration: "4" }),
  new StaveNote({ keys: ["f/4"], duration: "4" })
];

var stave1Voice = new Vex.Flow.Voice({ num_beats: 4, beat_value: 4 });
stave1Voice.setStrict(true);
stave1Voice.addTickables(notes1);

var formatter1 = new Vex.Flow.Formatter().joinVoices([stave1Voice]);
formatter1.formatToStave([stave1Voice], stave1);
stave1Voice.draw(ctx, stave1);

const stave2 = f.Stave({ x: stave1.width + stave1.x, y: stave1.y, width: nStaveWidth });
stave2.setMeasure(2);
stave2.setContext(ctx).draw();

Stave2Pos.x = stave2.x;
Stave2Pos.y = stave2.y;
//f.draw();

const stave3 = new Stave(stave2.width + stave2.x, stave1.y, nStaveWidth).setContext(ctx);
stave3.setMeasure(3);
stave3.draw();

Stave3Pos.x = stave3.x;
Stave3Pos.y = stave3.y;

const stave4 = new Stave(stave3.width + stave3.x, stave1.y, nStaveWidth).setContext(ctx);
stave4.setMeasure(4);
stave4.draw();

const stave5 = new Stave(stave1.x, stave1.y + 200, nHeadMargin + nStaveWidth).setContext(ctx);
stave5.addClef("treble").setContext(ctx);
stave5.addTimeSignature('4/4').setContext(ctx);
stave5.setMeasure(5);
stave5.draw();

var connector = new VF.StaveConnector(stave1, stave5);
connector.setType(VF.StaveConnector.type.SINGLE);
connector.setContext(ctx);
connector.draw();



const stave6 = new Stave(stave5.width + stave5.x, stave5.y, nStaveWidth).setContext(ctx);
stave6.setMeasure(6);
stave6.draw();

Stave6Pos.x = stave6.x;
Stave6Pos.y = stave6.y;

const stave7 = new Stave(stave6.width + stave6.x, stave5.y, nStaveWidth).setContext(ctx);
stave7.setMeasure(7);
stave7.draw();

const stave8 = new Stave(stave7.width + stave7.x, stave5.y, nStaveWidth).setContext(ctx);
stave8.setMeasure(8);
stave8.draw();

const stave9 = new Stave(stave5.x, stave5.y + 200, nHeadMargin + nStaveWidth).setContext(ctx);
stave9.setMeasure(9);
stave9.draw();

var connector9 = new VF.StaveConnector(stave5, stave9);
connector9.setType(VF.StaveConnector.type.SINGLE);
connector9.setContext(ctx);
connector9.draw();

var connector9_2 = new VF.StaveConnector(stave5, stave9);
connector9_2.setType(VF.StaveConnector.type.BRACKET);
connector9_2.setContext(ctx);
connector9_2.draw();

Instrument2.x = stave1.x - 30;
Instrument2.y = stave5.y + ((stave9.y - stave5.y) / 2) + 90; 

const stave10 = new Stave(stave9.width + stave9.x, stave9.y, nStaveWidth).setContext(ctx);
stave10.setMeasure(10);
stave10.draw();

Stave10Pos.x = stave10.x;
Stave10Pos.y = stave10.y;

const stave11 = new Stave(stave10.width + stave10.x, stave9.y, nStaveWidth).setContext(ctx);
stave11.setMeasure(11);
stave11.draw();

Stave11Pos.x = stave11.x;
Stave11Pos.y = stave11.y;

const stave12 = new Stave(stave11.width + stave11.x, stave9.y, nStaveWidth).setContext(ctx);
stave12.setMeasure(12);
stave12.draw();


const stave13 = new Stave(stave9.x, stave9.y + 200, nHeadMargin + nStaveWidth).setContext(ctx);
stave13.setMeasure(13);
stave13.addClef("bass").setContext(ctx);
stave13.addTimeSignature('4/4').setContext(ctx);
stave13.draw();

Instrument13.x = stave13.x - 30;
Instrument13.y = stave13.y + 90; 

const stave13_1 = new Stave(nHeadMargin + stave9.x, stave9.y + 200, 0).setContext(ctx);
stave13_1.setBegBarType(VF.Barline.type.NONE);
stave13_1.setEndBarType(VF.Barline.type.NONE);
stave13_1.draw();

const notes13_1 = [
  new StaveNote({ keys: ["f/4"], duration: "4", stem_direction: -1 }),
  new StaveNote({ keys: ["c/4"], duration: "4r" }),
  new StaveNote({ keys: ["c/4"], duration: "8r" }),
  new StaveNote({ keys: ["f/4"], duration: "8", stem_direction: -1 }),
  new StaveNote({ keys: ["c/4"], duration: "8r" }),
  new StaveNote({ keys: ["f/4"], duration: "8", stem_direction: -1 })
];
const beam13_1 = new VF.Beam([notes13_1[3],notes13_1[5]]);

var stave13_1Voice = new Vex.Flow.Voice({ num_beats: 4, beat_value: 4 });
stave13_1Voice.setStrict(true);
stave13_1Voice.addTickables(notes13_1);

//var formatter13_1 = new Vex.Flow.Formatter().joinVoices([stave13_1Voice]);
//formatter13_1.formatToStave([stave13_1Voice], stave13_1);
//formatter13_1.format([stave13_1Voice], nStaveWidth - 30);
//stave13_1Voice.draw(ctx, stave13_1);



const stave13_2 = new Stave(nHeadMargin + stave9.x, stave9.y + 200, 0).setContext(ctx);
stave13_2.setBegBarType(VF.Barline.type.NONE);
stave13_2.setEndBarType(VF.Barline.type.NONE);
stave13_2.draw();

const notes13_2 = [
  new VF.StaveNote({ keys: ["g/5"], duration: "8", stem_direction: 1 }),
  new VF.StaveNote({ keys: ["g/5"], duration: "8", stem_direction: 1 }),
  new VF.StaveNote({ keys: ["c/5"], duration: "8", stem_direction: 1 }),
  new VF.StaveNote({ keys: ["g/5"], duration: "16", stem_direction: 1 }),
  new VF.StaveNote({ keys: ["c/5"], duration: "16", stem_direction: 1 }),
  new VF.StaveNote({ keys: ["g/5"], duration: "8", stem_direction: 1 }),
  new VF.StaveNote({ keys: ["g/5"], duration: "8", stem_direction: 1 }),
  new VF.StaveNote({ keys: ["c/5"], duration: "8", stem_direction: 1 }),
  new VF.StaveNote({ keys: ["g/5"], duration: "8", stem_direction: 1 })
];

const notes13_3 = [
  new VF.GhostNote({ keys: ["a/5"], duration: "16", stem_direction: 1 }),
  new VF.GhostNote({ keys: ["a/5"], duration: "16", stem_direction: 1 }),
  new VF.GhostNote({ keys: ["a/5"], duration: "16", stem_direction: 1 }),
  new VF.GhostNote({ keys: ["a/5"], duration: "16", stem_direction: 1 }),

  new VF.GhostNote({ keys: ["a/5"], duration: "16", stem_direction: 1 }),
  new VF.GhostNote({ keys: ["a/5"], duration: "16", stem_direction: 1 }),
  new VF.GhostNote({ keys: ["a/5"], duration: "16", stem_direction: 1 }),
  new VF.GhostNote({ keys: ["a/5"], duration: "16", stem_direction: 1 }),

  new VF.GhostNote({ keys: ["a/5"], duration: "16", stem_direction: 1 }),
  new VF.GhostNote({ keys: ["a/5"], duration: "16", stem_direction: 1 }),
  new VF.GhostNote({ keys: ["a/5"], duration: "16", stem_direction: 1 }),
  new VF.GhostNote({ keys: ["a/5"], duration: "16", stem_direction: 1 }),

  new VF.GhostNote({ keys: ["a/5"], duration: "16", stem_direction: 1 }),
  new VF.GhostNote({ keys: ["a/5"], duration: "16", stem_direction: 1 }),
  new VF.GhostNote({ keys: ["a/5"], duration: "16", stem_direction: 1 }),
  new VF.GhostNote({ keys: ["a/5"], duration: "16", stem_direction: 1 })
];

UniqueIds = getUniqueNoteheadIds(notes13_2, [0, 1, 3, 5, 6, 8]);
allUniqueIds = updateAllUniqueIds(UniqueIds);

const beam13_2_1 = new VF.Beam([notes13_2[0], notes13_2[1]]);
const beam13_2_2 = new VF.Beam([notes13_2[2], notes13_2[3], notes13_2[4]]);
const beam13_2_3 = new VF.Beam([notes13_2[5], notes13_2[6], notes13_2[7], notes13_2[8]]);

var stave13_2Voice = new Vex.Flow.Voice({ num_beats: 4, beat_value: 4 });
stave13_2Voice.setStrict(true);
stave13_2Voice.addTickables(notes13_2);

var stave13_3Voice = new Vex.Flow.Voice({ num_beats: 4, beat_value: 4 });
stave13_3Voice.setStrict(true);
stave13_3Voice.addTickables(notes13_3);

var formatter13_2 = new Vex.Flow.Formatter().joinVoices([stave13_3Voice, stave13_1Voice, stave13_2Voice]);
//formatter13_2.formatToStave([stave13_3Voice, stave13_1Voice, stave13_2Voice], stave13_2);
formatter13_2.format([stave13_3Voice, stave13_1Voice, stave13_2Voice], nStaveWidth - 30);
stave13_1Voice.draw(ctx, stave13_2);
stave13_2Voice.draw(ctx, stave13_2);

beam13_1.setContext(ctx).draw();

beam13_2_1.setContext(ctx).draw();
beam13_2_2.setContext(ctx).draw();
beam13_2_3.setContext(ctx).draw();

shift13 = addShift(
  notes13_2, 
  [0, 1, 2, 3, 5, 5, 6, 6, 7, 7, 8, 8],
  [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
);


const stave14 = new Stave(stave13.width + stave13.x, stave13.y, nStaveWidth).setContext(ctx);
stave14.setMeasure(14);
stave14.draw();


const stave15 = new Stave(stave14.width + stave14.x, stave13.y, nStaveWidth).setContext(ctx);
stave15.setMeasure(15);
stave15.draw();


const stave16 = new Stave(stave15.width + stave15.x, stave13.y, nStaveWidth).setContext(ctx);
stave16.setMeasure(16);
stave16.draw();


const stave17 = new Stave(stave13.x, stave13.y + 200, nHeadMargin + nStaveWidth).setContext(ctx);
stave17.setMeasure(17);
stave17.addTimeSignature('4/4').setContext(ctx);

const stave17_1 = new Stave(nHeadMargin + stave13.x, stave13.y + 200, 0).setContext(ctx);
stave17_1.setBegBarType(VF.Barline.type.NONE);
stave17_1.setEndBarType(VF.Barline.type.NONE);
stave17_1.draw();

for (var i = 0; i < 5; i++) {
  if (i == 2) continue;
  stave17.setConfigForLine(i, {visible: false} );
}

stave17.draw();

Instrument17.x = stave17.x - 30;
Instrument17.y = stave17.y + 90; 

var connector17 = new VF.StaveConnector(stave9, stave17);
connector17.setType(VF.StaveConnector.type.SINGLE);
connector17.setContext(ctx);
connector17.draw();

const notes17_1 = [
  new VF.StaveNote({ keys: ["a/4"], duration: "16", stem_direction: -1 }),
  new VF.StaveNote({ keys: ["a/4"], duration: "16", stem_direction: -1 }),
  new VF.StaveNote({ keys: ["a/4"], duration: "16", stem_direction: -1 }),
  new VF.StaveNote({ keys: ["a/4"], duration: "16", stem_direction: -1 }),

  new VF.StaveNote({ keys: ["a/4"], duration: "16", stem_direction: -1 }),
  new VF.StaveNote({ keys: ["a/4"], duration: "16", stem_direction: -1 }),
  new VF.StaveNote({ keys: ["a/4"], duration: "16", stem_direction: -1 }),
  new VF.StaveNote({ keys: ["a/4"], duration: "16", stem_direction: -1 }),

  new VF.StaveNote({ keys: ["a/4"], duration: "16", stem_direction: -1 }),
  new VF.StaveNote({ keys: ["a/4"], duration: "16", stem_direction: -1 }),
  new VF.StaveNote({ keys: ["a/4"], duration: "16", stem_direction: -1 }),
  new VF.StaveNote({ keys: ["a/4"], duration: "16", stem_direction: -1 }),

  new VF.StaveNote({ keys: ["a/4"], duration: "16", stem_direction: -1 }),
  new VF.StaveNote({ keys: ["a/4"], duration: "16", stem_direction: -1 }),
  new VF.StaveNote({ keys: ["a/4"], duration: "16", stem_direction: -1 }),
  new VF.StaveNote({ keys: ["a/4"], duration: "16", stem_direction: -1 })
];
UniqueIds = getUniqueNoteheadIds(notes17_1, [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]);
allUniqueIds = updateAllUniqueIds(UniqueIds);

const beam17_1_1 = new VF.Beam([notes17_1[0], notes17_1[1], notes17_1[2], notes17_1[3]]);
const beam17_1_2 = new VF.Beam([notes17_1[4], notes17_1[5], notes17_1[6], notes17_1[7]]);
const beam17_1_3 = new VF.Beam([notes17_1[8], notes17_1[9], notes17_1[10], notes17_1[11]]);
const beam17_1_4 = new VF.Beam([notes17_1[12], notes17_1[13], notes17_1[14], notes17_1[15]]);

var stave17_1Voice = new Vex.Flow.Voice({ num_beats: 4, beat_value: 4 });
stave17_1Voice.setStrict(true);
stave17_1Voice.addTickables(notes17_1);

var formatter17_1 = new Vex.Flow.Formatter().joinVoices([stave17_1Voice]);
//formatter17_1.formatToStave([stave17_1Voice], stave17_1);
formatter17_1.format([stave17_1Voice], nStaveWidth - 30);
stave17_1Voice.draw(ctx, stave17_1);

beam17_1_1.setContext(ctx).draw();
beam17_1_2.setContext(ctx).draw();
beam17_1_3.setContext(ctx).draw();
beam17_1_4.setContext(ctx).draw();

note17_1_0.x = notes17_1[0].getAbsoluteX();
note17_1_0.y = notes17_1[0].getStave().getYForLine(1);

shift17 = addShift(
  notes17_1, 
  [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15],
  [4, 4, 4, 4, 4, 4, 4, 4, 4, 4,  4,  4,  4,  4,  4,  4]
);

const stave18 = new Stave(stave17.width + stave17.x, stave17.y, nStaveWidth).setContext(ctx);
stave18.setMeasure(18);

for (var i = 0; i < 5; i++) {
  if (i == 2) continue;
  stave18.setConfigForLine(i, {visible: false} );
}

stave18.draw();

const stave19 = new Stave(stave18.width + stave18.x, stave18.y, nStaveWidth).setContext(ctx);
stave19.setMeasure(19);

for (var i = 0; i < 5; i++) {
  if (i == 2) continue;
  stave19.setConfigForLine(i, {visible: false} );
}

stave19.draw();

const stave20 = new Stave(stave19.width + stave19.x, stave19.y, nStaveWidth).setContext(ctx);
stave20.setMeasure(20);

for (var i = 0; i < 5; i++) {
  if (i == 2) continue;
  stave20.setConfigForLine(i, {visible: false} );
}

stave20.draw();

})();

const svgElement2 = document.querySelector('#yonet202403Mid_Output01 svg');
svgElement2.style.backgroundColor = '#F5F5F5';
var svgContainer = document.getElementById('yonet202403Mid_Output01');
var svgElement = svgContainer.querySelector('svg');

var newText = document.createElementNS('http://www.w3.org/2000/svg', 'text');
newText.setAttribute('x', '100');
newText.setAttribute('y', '100');
newText.setAttribute('font-family', 'Hiragino Kaku Gothic Pro, メイリオ, MS Gothic, sans-serif');
newText.setAttribute('font-size', '50');
newText.setAttribute('fill', 'black');
newText.textContent = 'TestTitle - subTitle - lyrics: yo-net, music: yo-net';
svgElement.appendChild(newText);

var newText2 = document.createElementNS('http://www.w3.org/2000/svg', 'text');
newText2.setAttribute('x', Instrument1.x);
newText2.setAttribute('y', Instrument1.y);
newText2.setAttribute('font-family', 'Bravura, VexFlow, Arial, sans-serif');
newText2.setAttribute('font-size', '20pt');
newText2.setAttribute('fill', 'black');
newText2.textContent = 'Vocal';
var textGroup2 = document.createElementNS('http://www.w3.org/2000/svg', 'g');
textGroup2.setAttribute('transform', 'rotate(-90 ' + Instrument1.x + ' ' + Instrument1.y + ')');
textGroup2.appendChild(newText2);
svgElement.appendChild(textGroup2);

var newText3 = document.createElementNS('http://www.w3.org/2000/svg', 'text');
newText3.setAttribute('x', Instrument2.x);
newText3.setAttribute('y', Instrument2.y);
newText3.setAttribute('font-family', 'Bravura, VexFlow, Arial, sans-serif');
newText3.setAttribute('font-size', '20pt');
newText3.setAttribute('fill', 'black');
newText3.textContent = 'E.Guitar';
var textGroup3 = document.createElementNS('http://www.w3.org/2000/svg', 'g');
textGroup3.setAttribute('transform', 'rotate(-90 ' + Instrument2.x + ' ' + Instrument2.y + ')');
textGroup3.appendChild(newText3);
svgElement.appendChild(textGroup3);

var newText13 = document.createElementNS('http://www.w3.org/2000/svg', 'text');
newText13.setAttribute('x', Instrument13.x);
newText13.setAttribute('y', Instrument13.y);
newText13.setAttribute('font-family', 'Bravura, VexFlow, Arial, sans-serif');
newText13.setAttribute('font-size', '20pt');
newText13.setAttribute('fill', 'black');
newText13.textContent = 'Drum';
var textGroup13 = document.createElementNS('http://www.w3.org/2000/svg', 'g');
textGroup13.setAttribute('transform', 'rotate(-90 ' + Instrument13.x + ' ' + Instrument13.y + ')');
textGroup13.appendChild(newText13);
svgElement.appendChild(textGroup13);

var newText17 = document.createElementNS('http://www.w3.org/2000/svg', 'text');
newText17.setAttribute('x', Instrument17.x);
newText17.setAttribute('y', Instrument17.y);
newText17.setAttribute('font-family', 'Bravura, VexFlow, Arial, sans-serif');
newText17.setAttribute('font-size', '20pt');
newText17.setAttribute('fill', 'black');
newText17.textContent = 'Percussion';
var textGroup17 = document.createElementNS('http://www.w3.org/2000/svg', 'g');
textGroup17.setAttribute('transform', 'rotate(-90 ' + Instrument17.x + ' ' + Instrument17.y + ')');
textGroup17.appendChild(newText17);
svgElement.appendChild(textGroup17);

//設定
var fontSize2 = 40; // フォントサイズ
var fontFamily2 = "Bravura, Arial"; //Bravuraフォントファミリー
var textContent2 = "\uE500";//符頭E0A4

// テキスト要素の作成
var newText2 = document.createElementNS('http://www.w3.org/2000/svg', 'text');
newText2.setAttribute('id', 'rest2'); //テキスト要素にIDを付ける
newText2.setAttribute('x', 0);
newText2.setAttribute('y', 0);
newText2.setAttribute('font-family', fontFamily2);
newText2.setAttribute('font-size', fontSize2);
newText2.setAttribute('fill', 'black');
newText2.textContent = textContent2;

// SVG要素にテキストを追加
svgElement.appendChild(newText2);

(function(){
    var textWidth = document.getElementById('rest2').getBBox().width;
    var textHeight = document.getElementById('rest2').getBBox().height;

    //スケーリング
    var horizontalScale = 1;
    var verticalScale = 1;

    var StavePos_x = Stave2Pos.x + 170;
    var StavePos_y = Stave2Pos.y + 60;

    newText2.setAttribute('transform', 'translate(' + StavePos_x  + ',' + StavePos_y + ') scale(' + horizontalScale + ',' + verticalScale + ')');

    //SVG要素に追加する
    svgElement.appendChild(newText2);
})();


//設定
var fontSize3 = 40; // フォントサイズ
var fontFamily3 = "Bravura, Arial"; //Bravuraフォントファミリー
var textContent3 = "\uE501";//符頭E0A4

// テキスト要素の作成
var newText3 = document.createElementNS('http://www.w3.org/2000/svg', 'text');
newText3.setAttribute('id', 'rest3'); // テキスト要素にIDを付ける
newText3.setAttribute('x', 0);
newText3.setAttribute('y', 0);
newText3.setAttribute('font-family', fontFamily3);
newText3.setAttribute('font-size', fontSize3);
newText3.setAttribute('fill', 'black');
newText3.textContent = textContent3;

// SVG要素にテキストを追加
svgElement.appendChild(newText3);

(function(){
    var textWidth = document.getElementById('rest3').getBBox().width;
    var textHeight = document.getElementById('rest3').getBBox().height;

    //スケーリング
    var horizontalScale = 1;
    var verticalScale = 1;

    var StavePos_x = Stave3Pos.x + 335;
    var StavePos_y = Stave3Pos.y + 60;

    newText3.setAttribute('transform', 'translate(' + StavePos_x  + ',' + StavePos_y + ') scale(' + horizontalScale + ',' + verticalScale + ')');

    //SVG要素に追加する
    svgElement.appendChild(newText3);
})();

//設定
var fontSize6 = 40; // フォントサイズ
var fontFamily6 = "Bravura, Arial"; //Bravuraフォントファミリー
var textContent6 = "\uE502";//符頭E0A4

// テキスト要素の作成
var newText6 = document.createElementNS('http://www.w3.org/2000/svg', 'text');
newText6.setAttribute('id', 'rest6'); // テキスト要素にIDを付ける
newText6.setAttribute('x', 0);
newText6.setAttribute('y', 0);
newText6.setAttribute('font-family', fontFamily6);
newText6.setAttribute('font-size', fontSize6);
newText6.setAttribute('fill', 'black');
newText6.textContent = textContent6;

// SVG要素にテキストを追加
svgElement.appendChild(newText6);

(function(){
    var textWidth = document.getElementById('rest6').getBBox().width;
    var textHeight = document.getElementById('rest6').getBBox().height;

    //スケーリング
    var horizontalScale = 1;
    var verticalScale = 1;

    var StavePos_x = Stave6Pos.x + 325;
    var StavePos_y = Stave6Pos.y + 60;

    newText6.setAttribute('transform', 'translate(' + StavePos_x  + ',' + StavePos_y + ') scale(' + horizontalScale + ',' + verticalScale + ')');

    // クレシェンド記号をSVG要素に追加する
    svgElement.appendChild(newText6);
})();

//設定
var fontSize10 = 40; // フォントサイズ
var fontFamily10 = "Bravura, Arial"; // Bravuraフォントファミリー
var textContent10 = "\uE503\uE504\uE504\uE504\uE504\uE505";// 符頭E0A4

// テキスト要素の作成
var newText10 = document.createElementNS('http://www.w3.org/2000/svg', 'text');
newText10.setAttribute('id', 'rest10'); // テキスト要素にIDを付ける
newText10.setAttribute('x', 0);
newText10.setAttribute('y', 0);
newText10.setAttribute('font-family', fontFamily10);
newText10.setAttribute('font-size', fontSize10);
newText10.setAttribute('fill', 'black');
newText10.textContent = textContent10;

// SVG要素にテキストを追加
svgElement.appendChild(newText10);

(function(){
    var textWidth = document.getElementById('rest10').getBBox().width;
    var textHeight = document.getElementById('rest10').getBBox().height;

    //スケーリング
    var horizontalScale = 1;
    var verticalScale = 1;

    var StavePos_x = Stave10Pos.x + 325;
    var StavePos_y = Stave10Pos.y + 60;

    newText10.setAttribute('transform', 'translate(' + StavePos_x  + ',' + StavePos_y + ') scale(' + horizontalScale + ',' + verticalScale + ')');

    //SVG要素に追加する
    svgElement.appendChild(newText10);
})();



var options = {
    textContent: ["\uE503", "\uE504", "\uE504", "\uE504", "\uE504", "\uE504", "\uE504", "\uE504", "\uE504", "\uE505"], // 必須文字列
    strID: "rest11", // 必須
    Stave_x: Stave11Pos.x,
    Stave_y: Stave11Pos.y,
    Stave_x_Offset: 305, // オプション、デフォルトは0
    Stave_y_Offset: 60, // オプション、デフォルトは0
    StaveWidth: 0, // オプション、デフォルトは0
    StaveHeight: 0, // オプション、デフォルトは0
    StaveVerticalScale: 0, // オプション、デフォルトは0
    fontSize: 40, // オプション、デフォルトは40
    fontFamily: "Bravura, Arial", // オプション、デフォルトは"Bravura, Arial"
    shift_x: [0, 0, 10, 10, 10, 10, 10, 10, 10, 15], // xのオフセット値配列
    IsOffset_x_Abs: false
};
insertTextToSVG(options);

var note13_2_0_option = {
    textContent: ["\uFF65", "\uFF65", "\uFF65", "\uFF65", 
                  "\uFF65", "\uFF68", "\uFF66", "\uFF67", "\uFF65", "\uFF0B", "\uFF65", "\uFF0F"], // 必須文字列
                 //x      ,   half_o,         ,        >,         ,       + ,         ,        o
    strID: "note13_2_0", // 必須
    Stave_y_Offset: [   -5,       -5,       -5,       -5,
                        -5,      -60,       -5,      -60,       -5,      -60,       -5,      -60],
    fontFamily: "YonetMuFL, Arial", // オプション、デフォルトは"Bravura, Arial"
    shift_x: shift13, // xのオフセット値配列
    IsOffset_x_Abs: true
};
insertTextToSVG(note13_2_0_option);

var note17_1_0_Shaker_option = {
    textContent: ["＜ Ｓｈａｋｅｒ ＞"], // 必須文字列
    strID: "note17_1_0", // 必須
    Stave_x: note17_1_0.x,
    Stave_y: note17_1_0.y,
    Stave_x_Offset: -20,
    Stave_y_Offset: -40,
    fontSize: 60,
    fontFamily: "YonetMuFL, Arial", // オプション、デフォルトは"Bravura, Arial"
    shift_x: [0] // xのオフセット値配列
};
insertTextToSVG(note17_1_0_Shaker_option);

var note17_1_0_option = {
    textContent: ["\uFF69"], // 必須文字列
    strID: "note17_1_0", // 必須
    Stave_y_Offset: -5,
    fontFamily: "YonetMuFL, Arial", // オプション、デフォルトは"Bravura, Arial"
    shift_x: shift17, // xのオフセット値配列
    IsOffset_x_Abs: true
};
insertTextToSVG(note17_1_0_option);

// 透明にするIDの配列
// 例としてここでIDを指定
let autoUniqueIds = allUniqueIds.map(id => "vf-" + id);

// 各IDに対して処理
autoUniqueIds.forEach(id => {
    // 該当するIDの要素を取得
    let element = svgElement.getElementById(id);
    if (element) {
        // 該当する要素があれば、描画内容を透明にする
        let paths = element.querySelectorAll("path");
        paths.forEach(path => {
            path.setAttribute("fill", "none");
            path.setAttribute("stroke", "none");
        });
    }
});

})();
</script>


　

　

VexFlow 使い方に戻る。

「https://wiki.yo-net.jp/index.php?title=VexFlow_タブ譜&oldid=7315」から取得