/// <summary>
/// 读取txt坐标文件，存入数据到TProjInfo实例中
/// </summary>
/// <param name="txtPath">txt文件路径</param>
/// <param name="isAddProjZone">是否在Y坐标值上添加投影分带带号</param>
/// <returns></returns>
public static TProjInfo GetProjInfoFromTxt(string txtPath, bool isAddProjZone = false)
{
var txtInfo = new TProjInfo();
var lines = File.ReadAllLines(txtPath, FileEncode.GetEncoding(txtPath));
var txtFlag = ETxtContent.NoDefine;
TPolygon polygon = null;
for (int i = 0; i < lines.Length; i++)
{
try
{
var line = lines[i];
if (SetStrFlag(line, ref txtFlag))
{
continue;
}
if (txtFlag == ETxtContent.Project)
{
txtInfo.AddProjectDict(line);
}
else if (txtFlag == ETxtContent.Property)
{
txtInfo.AddPropertyDict(line);
}
else if (txtFlag == ETxtContent.Coordinate)
{
string[] strArray = line.Split(',');
if (line.Contains("@"))
{
polygon = new TPolygon();
polygon.AddAttribute(strArray);
txtInfo.Polygons.Add(polygon);
}
else if (strArray.Length == 4)
{
var strY = isAddProjZone ? txtInfo.ProjZone + strArray[3] : strArray[3];
polygon.AddXY(Convert.ToInt32(strArray[1]), Convert.ToDouble(strArray[2]), Convert.ToDouble(strY));
}
}
}
catch (Exception ex) { throw new Exception($"读取坐标文件第{i}行发生错误：{ex.Message}"); }
}
CheckRepairPolygon(txtInfo);
return(txtInfo);
}
public IObservable <WWW> Load(string url)
{
var hashCodeUrl = Path + url.GetHashCode();
//如果之前不存在缓存文件
if (!File.Exists(hashCodeUrl))
{
var www = remoteFileLoader.Load(url);
www.Subscribe(file =>
{
if (file != null)
{
var encodeBytes = FileEncode?.Invoke(file);
File.WriteAllBytes(hashCodeUrl, encodeBytes);
}
});
return(www);
}
else
{
return(localFileLoader.Load(hashCodeUrl));
}
}