RailwayRouteOptimization/scripts/Common/FileDMX.js

include("scripts/EAction.js");
include("scripts/simple.js");

function FileDMX(file, ratio) {
  // 地面线数据
  this.newEntityData = new Array();
  // 比例尺
  this.ratio = ratio || 1.0;
  // 图层名称
  this.layername = "DMX-" + Math.floor(Math.random() * 100);
  this.readTxt(file);
}
FileDMX.prototype.getArrayData = function () {
  return this.newEntityData;
};

FileDMX.prototype.readTxt = function (file) {
  var reader = new QFile(file);
  var flags = makeQIODeviceOpenMode(QIODevice.ReadOnly, QIODevice.Text);
  if (!reader.open(flags)) {
    EAction.handleUserWarning("cannot open file: " + file);
    return false;
  }
  EAction.handleUserMessage("Starting to load DMX file: " + file);
  //每次都去文件中的一行，然后输出读取到的字符串
  var ts = new QTextStream(reader);
  setUtf8Codec(ts);
  //当读取出现错误（返回 -1）或者读取到的字符数为 0 时，结束读取
  do {
    var textLine = ts.readLine().trim();
    textLine = textLine.replace(/[\t]+/g, " ").replace(/[\s]+/g, " ");
    textLine = textLine.replace(/[ABC]/g, "").replace(/\r\n/g, "");
    var fields = textLine.split(" "); // Reserved: ',&[' & ';&['
    if (fields.length == 1) {
      fields = fields[0].split(",");
    }
    if (fields.length !== 2) {
      // With two extra fields >
      continue;
    } // End with two extra
    qDebug(parseFloat(fields[0]));
    qDebug(parseFloat(fields[1]));
    this.newEntityData.push([parseFloat(fields[0]) / this.ratio, parseFloat(fields[1])]);
  } while (!ts.atEnd());
  reader.close();
  return true;
};
FileDMX.prototype.applyOperation = function () {
  if (this.newEntityData.length == 0) {
    EAction.handleUserMessage("DMX data is empty...");
    return false;
  }
  EAction.handleUserMessage("DMX-50: " + formatDateTime());
  var colorReady = new Array(
    [new RColor(255, 0, 0), new RColor(160, 32, 240), new RColor(0, 255, 0)],
    [new RColor(128, 0, 128), new RColor(200, 96, 255), new RColor(160, 32, 240)],
    [new RColor(255, 153, 77), new RColor(128, 255, 255), new RColor(0, 255, 255)],
    [new RColor(77, 255, 255), new RColor(255, 255, 128), new RColor(255, 255, 0)],
    [new RColor(148, 121, 253), new RColor(255, 192, 128), new RColor(255, 165, 0)]
  );
  var colorIndex = Math.floor(Math.random() * colorReady.length);
  var selectedArray = colorReady[colorIndex];
  var PDColor = selectedArray[0];
  var SQXColor = selectedArray[1];
  var FZXColor = selectedArray[2];
  //绘制多线段
  EAction.handleUserMessage("DMX-64: " + formatDateTime());
  for (var i = 0; i < this.newEntityData.length - 1; i++) {
    var TempLineData = new Array();
    TempLineData.push([this.newEntityData[i][0], this.newEntityData[i][1]]);
    TempLineData.push([this.newEntityData[i + 1][0], this.newEntityData[i + 1][1]]);
    addPolylinetoView(TempLineData, false, false, 0, PDColor);
  }
  EAction.handleUserMessage("DMX-71: " + formatDateTime());
  return true;
};