Question

这使用Raphaeljs从数组中绘制单个和弦：

function createChordStruct(key, string, shape) {
  var string = string.toUpperCase();
  var position = positions[string][key];
  var struct = chord_shapes[shape];

return {
  name: key + struct.name,
  chord: struct.chord,
  position: position,
  position_text: struct.position_text,
  bars: struct.bars
  }
}

function createChordElement(chord_struct) {
  var chordbox = $('<div>').addClass('chord');
  var chordcanvas = $('<div>');
  var chordname = $('<div>').addClass('chordname');

chordbox.append(chordcanvas);
chordbox.append(chordname);
chordname.append(chord_struct.name);


var paper = Raphael(chordcanvas[0], 150, 140);
var chord = new ChordBox(paper, 30, 30);

chord.setChord(
  chord_struct.chord,
  chord_struct.position,
  chord_struct.bars,
  chord_struct.position_text);
chord.draw();

return chordbox;


}

function createSectionElement(section_struct) {
  var section = $('<div>').addClass('section');
  var section_title = $('<div>').addClass('title');
  var section_desc = $('<div>').addClass('description');

  section.append(section_title); 
  section.append(section_desc);
  section_title.append(section_struct.section);
  section_desc.append(section_struct.description);

  return section;

}

这将从数组中创建每个和弦并将它们放入一个名为“chordscroller”的新div中：

function c_i() {


var randomholder = 'id_' + (Math.floor(Math.random() * 100005) + 1);
var randomId = 'id_' + (Math.floor(Math.random() * 100005) + 1);
$(function () {
  $('#sortable').append($('<li id ="' + randomholder + '" class="chordbox"><span id="i"       class="scale">C - I</span><span id="' + randomId + '" class=" even scrollpane chordscroller"></span></li>').sortable( "refresh" ))
  });


function c_one() {
  var container = $("#" + randomId + "");
  var column = null;
  var column = _.shuffle(c_1);


for (var i = 0; i < column.length; ++i) {
  var section_struct = column[i];
  var section = createSectionElement(section_struct);

  for (var j = 0; j < section_struct.chords.length; ++j)  {
    section.append(createChordElement(section_struct.chords[j]));

  }

container.append(section);
}


}



$(function() { c_one() });


}

问题在于它同时吸引所有的和弦并且需要永远。我已经尝试了我能想到的setTimeout和setInterval的每个组合，但我一直遇到错误。

有人可以从这段代码中告诉我们如何一次一个地绘制和弦而不是一次全部绘制和弦吗？

Answer 1

最后弄明白了（使用名为doTimeout的插件）：

$.doTimeout( 1, function() {
  chord.setChord(
  chord_struct.chord,
  chord_struct.position,
  chord_struct.bars,
  chord_struct.position_text);
  chord.draw();


});

无法使setInterval和setTimeout工作

1 个答案: