Add a parameter to indicate whether to convert the upward Y-axis to t…

…he upward Z-axis, as the upward axis may be the Y-axis or the Z-axis after some objs are exported.

Obj2Tiles/Options.cs

@@ -47,8 +47,8 @@ public sealed class Options
     [Option("keep-intermediate", Required = false, HelpText = "Keeps the intermediate files (do not cleanup)", Default = false)]
     public bool KeepIntermediateFiles { get; set; }
 
-    [Option('t',"yuptozup", Required = false, HelpText = "Convert the upward Y-axis to the upward Z-axis, which is used in some situations where the upward axis may be the Y-axis or the Z-axis after the obj is exported.", Default = true)]
-    public bool YUpToZUp { get; set; }
+    [Option('t', "y-up-to-z-up", Required = true, HelpText = "Convert the upward Y-axis to the upward Z-axis, which is used in some situations where the upward axis may be the Y-axis or the Z-axis after the obj is exported.", Default = true)]
+    public bool? YUpToZUp { get; set; }
 }
 
 public enum Stage

Obj2Tiles/Program.cs

@@ -82,7 +82,7 @@ private static async Task Run(Options opts)
                     return;
 
                 var gpsCoords = opts.Latitude != null && opts.Longitude != null
-                    ? new GpsCoords(opts.Latitude.Value, opts.Longitude.Value, opts.Altitude, opts.Scale, opts.YUpToZUp)
+                    ? new GpsCoords(opts.Latitude.Value, opts.Longitude.Value, opts.Altitude, opts.Scale, opts.YUpToZUp == true)
                     : null;
 
                 Console.WriteLine();