How to Use the UDS Interface

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This could become an issue if you make the switch from '''Driver''' to '''Surveyor''' after a train has been '''returned''' to the layout from a portal. For example, if a train is originally in a '''Session Layer''' (as '''recommended''' for '''TRS19 Platinum''' and '''Trainz Plus''') then it is part of a '''Session'''. If it is returned from a portal that is in a '''Route Layer''' then it will now be in the same '''Route Layer''' as the portal and it will be part of the '''Route''', not part of the '''Session'''.<br>
 
This could become an issue if you make the switch from '''Driver''' to '''Surveyor''' after a train has been '''returned''' to the layout from a portal. For example, if a train is originally in a '''Session Layer''' (as '''recommended''' for '''TRS19 Platinum''' and '''Trainz Plus''') then it is part of a '''Session'''. If it is returned from a portal that is in a '''Route Layer''' then it will now be in the same '''Route Layer''' as the portal and it will be part of the '''Route''', not part of the '''Session'''.<br>
  
If you then switch from '''Driver''' to '''Surveyor''' and save the '''Route''' then the train will be saved in the '''Route''' and not in the '''Session'''. If this is an issue then the remedy is to open the property dialogue window of any wagon in the train after it has left the portal and change its assigned layer to the correct one. This will set all vehicles in that train to the same correct layer.<br>
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If you save the '''Route''' after switching to '''Surveyor''' then the train will be saved in the '''Route''' and not in the '''Session'''. If this is an issue then the remedy is to open the property dialogue window of any wagon in the train after it has left the portal and change its assigned layer to the correct one. This will set all vehicles in that train to the same correct layer.<br>
  
'''Note:''' It is not recommended that you solve this by moving portals to a '''Session Layer''' because the portals will then only appear in that '''Session'''.
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'''Note:''' It is not recommended that you solve this by moving portals to a '''Session Layer''' if you have multiple '''Sessions''' because the portals will then only appear in the '''Session''' that contains the portals.
 
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Revision as of 06:29, 23 October 2021

The information in this Wiki Page applies to TRS19 Platinum Edition and Trainz Plus. Older versions of Trainz, including T:ANE and TRS19 (standard), do not have the UDS feature described in this document. A more detailed description of the UDS can be found on this Wiki at Unified_Driver_Surveyor.

Contents

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What is the UDS Interface?

DotPoint.JPG The UDS provides a means of quickly switching from Driver mode to Surveyor mode and back to Driver again without having to restart a running session after each switch. It is only available in TRS19 Platinum Edition and Trainz Plus
DotPoint.JPG The UDS replaces the QuickDrive Rule in TRS19 Platinum Edition and Trainz Plus


UDS stands for Unified Driver Surveyor and is an "interface" or option built into TRS19 Platinum Edition and Trainz Plus that allows you to jump seamlessly from Driver into Surveyor and then back into Driver again to resume a session at the point where you left it. There is no need to restart a Driver session from the very beginning.

The Scenario:
You are in Driver mode testing out a route and session when you discover a problem.
UDS-Scenario1.png Previously (before UDS) your only options would be to:-
  1. ignore the problem (if possible) to continue the session in Driver and fix the problem later, or
  2. immediately halt the session to fix it now

In both cases you would have to:-

  1. load the route into Surveyor and try to recall exactly where the problem is located
  2. fix the problem
  3. restart the session in Driver from the beginning (a bit tough if you were 2 hrs or more into a 3 hr session)


DotPoint.JPG The UDS interface allows you to switch, via a menu option, directly to Surveyor without having to stop and exit Driver mode first


Using UDS you switch from Driver to Surveyor with the currently active Driver consist still as the focus and at the place it was located when you switched into Surveyor from Driver.
UDS-Scenario2.png All the Surveyor tools and options are available for you to use, including the Session Editor (more on that later).
UDS-Scenario3.png You use the Surveyor tools to fix the problem, such as deleting (as shown left), moving or adding a scenery object.

You can then (if you wish) save the edited route and/or session (again there will be more on that later).

UDS-Scenario4.png You then switch back into Driver to continue driving the session with the problem fixed.


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Switching Modes

DotPoint.JPG When in Driver Mode and Switching to Surveyor  
  UDS-DriverToSurveyor.png Open the Tools Menu and select Surveyor Mode
Warning:
Stop.PNG When you switch to Surveyor mode the Pause option (at the top of the Tools menu) will be automatically turned ON. If you turn this option OFF in Surveyor mode then any consists that were moving in Driver mode (and were then paused when you switched) will start moving again. This will almost certainly cause problems such as derailments.
DotPoint.JPG When in Surveyor Mode and Switching to Driver  
  UDS-SurveyorToDriver.png Open the Tools Menu and select Driver Mode


If the Paused option is ON in Surveyor mode (the default condition unless you have turned it OFF) then the simulation will be paused and the Paused message will appear on the screen when you switch to Driver mode. Hit the  P  key to Unpause and resume the simulation.


NotePad.PNG Notes:
The Undo command ( Ctrl   Z ) can be used in Surveyor Mode but not in Driver Mode.


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Saving

Warning:
Stop.PNG If you decide to save your Surveyor edits and select the option to

UDS-OverwriteExistingSession.png
then you will "overwrite" (a nicer way of saying destroy) your starting or original session


Most of the problems users seem to be experiencing with the UDS, judging from the posts in the Trainz Forums, is when saving their edited Driver session after switching to Surveyor mode.

DotPoint.JPG Using Driver Mode involves driving consists (either manually or through the AI) and activating rules. These will change the session parameters
DotPoint.JPG Overwriting the Session will save the consist locations and Session Rules in their new positions/conditions


NotePad.PNG Notes:
An important change that has been introduced by the UDS is that train vehicle placement is now saved as part of the Session, even if those vehicles have been placed in Route Layers.
PencilTips.PNG For this reason, in TRS19 Platinum Edition and in Trainz Plus it is strongly recommended that all consists be placed into a Session Layer and become part of a Session instead of the Route


When you are in Driver Mode at least one of the consists will probably be moving. Some of the Session rules may have already been completed while others may still be running or waiting for events (e.g. triggers to be activated).

If, after switching to Surveyor Mode, you then choose to save using the Overwrite existing session option then you will be replacing your original starting Session with a new one with the consists saved in their new positions and the Session rules saved in their new states. So when you later load and restart the Session things will not be the same as they were in the original or starting Session.

 Unless you have a particular reason for overwriting the original Session  then the recommended save options are:-

Line740.png
Option DotPoint1.JPG Do not save session
  UDS-DoNotSaveSession.png

This will only save the Route using its existing name. This will save any edits that you have made to the Route but not to the Session.

Line740.png
Option DotPoint2.JPG Create new session
  UDS-CreateNewSession.png

This will save the Route using its existing name. It will also save the Session using a new name you enter in the text box below the option (Stage 3 in the example shown). The original Session will not be altered. This is useful when you want to test out changes to consists, industry settings, Rules, driver commands, etc but do not want to destroy the original Session.

Line740.png


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Resetting the Session Rules

DotPoint.JPG After you switch from Driver Mode to Surveyor Mode it may be necessary to restart or reset some of the Session Rules


As mentioned above, when Driver Mode is running some of the Session rules may be completed while others may still be running or waiting for certain events (e.g. triggers to be activated). When you switch to Surveyor Mode these rules may be in a different state compared to what they were at the start of the Session. When you restart Driver Mode these rules may not be in a useful condition.

The Session Editor built into all Trainz versions allows you to add, delete and modify the rules that will operate during a Session.

LinkWiki.PNG Information on the Session Editor can be found at:-


To open the Session Editor open the Edit menu and select Edit Session
SessionEditMenuSP1.png

UDS-SessionRules.png

SessionEditMenuRestartRules.png At the bottom of the Session Editor is a new button, Reset All Rules. This will reset or restart ALL rules in the Session.
UDS-CompleteWasComplete.png Some rules, as shown in the screen shot above, have the label (Complete was-complete) after the rule name. This indicates that the rule has already been completed. These rules can be individually restarted by right mouse clicking on the rule and selecting the Reset option from the pop up menu. This will change the rule status to (Paused).
When the Driver Mode is selected again, all the reset or Paused rules will be restarted.


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Some Questions Answered

Question.PNG I have only edited assets that are in the Route layers but selecting Save always sets the option to "Overwrite exiting session" as the default. Why?


Many scenery assets actually have their properties stored in the Session, even when the assets themselves are in a Route layer. Editing the properties of these assets is considered to be a change to the Session. These include:-

  • junction switches - the left/right switch direction is stored in the Session (but the switch default direction is stored in the Route)
  • industries - the commodities and quantities loaded/unloaded are stored in the Session
  • industry enabled wagons - the commodities and quantities carried are stored in the Session
  • consist locations - this is stored in the Session (TRS19 Platinum Edition and Trainz Plus only)
  • named route objects - while the name is stored in the Route, adding or changing the name is treated as a change to the Session


Question.PNG Interlocking Towers (including Enhansed Interlocking Towers) show paths as "not editable" after switching to Surveyor Mode. Why?


If you make the switch from Driver Mode to Surveyor Mode after an IT/EIT path has been activated (but not yet cleared or cancelled) then you will be unable to edit that path. In addition, you will not be able to add new paths to an IT/EIT that has an open active path.

Pierre (pguy), the creator of the EIT asset and associated rules, has a detailed description of this and some possible solutions in a Trainz Forum post at:- EITs and the UDS

Question.PNG Can I add new trains or replace existing trains after switching to Surveyor mode?


You can add additional trains and replace existing ones when in Surveyor mode but it is advised that:-

  1. the Paused option be set ON (the default condition) in Surveyor mode, and
  2. you may have to reset the Driver Setup Rule in the Session Editor particularly if you have added/edited driver commands to the new or altered consist


Question.PNG Does the UDS change how portals work?


A train that is driven into a portal and later returned to the layout will be returned in the same layer as the portal and not in the trains originally assigned layer. Trains that are produced by a portal will be assigned to the same layer as the portal. This has  possibly always been the case with portals  but was probably unnoticed until the arrival of the UDS. It seems to have no other noticeable effect on trains.

This could become an issue if you make the switch from Driver to Surveyor after a train has been returned to the layout from a portal. For example, if a train is originally in a Session Layer (as recommended for TRS19 Platinum and Trainz Plus) then it is part of a Session. If it is returned from a portal that is in a Route Layer then it will now be in the same Route Layer as the portal and it will be part of the Route, not part of the Session.

If you save the Route after switching to Surveyor then the train will be saved in the Route and not in the Session. If this is an issue then the remedy is to open the property dialogue window of any wagon in the train after it has left the portal and change its assigned layer to the correct one. This will set all vehicles in that train to the same correct layer.

Note: It is not recommended that you solve this by moving portals to a Session Layer if you have multiple Sessions because the portals will then only appear in the Session that contains the portals.

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This page was created by Trainz user pware in June 2021 and was last updated as shown below.


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