Yes, LinSig V2 (and LinSig V1) files can be opened in LinSig V3. As LinSig V3 is lane based and previous versions of LinSig are Link based (a Link being a grouping of Lanes) some differences in model structure may occur. LinSig V3 will try and resolve these wherever possible but in some cases, for example a LinSig V2 Link with two Lanes, LinSig V3 cannot automatically restructure the model without further user input. This is to avoid LinSig making arbitrary assumptions which may or may not be correct.
To open a LinSig V2 in LinSig V3 open the file using the normal ‘File…Open’ menu. LinSig V3 will import the LinSig V2 model but will display any Lane structures which cannot be unambiguously restructured with a ‘best guess’ structure and highlighted in orange. If the best guess Lane structure is acceptable all that is required is to right mouse click on the orange Lanes and choose ‘Accept Lane Structure’ from the pop-up menu. Usually additional Lane connectors will also need to be added at this stage for any new Lanes created as part of LinSig automatic Link restructuring. If the ‘best guess’ Lane structure is not acceptable orange Lanes can be edited or deleted to create an acceptable Lane structure before choosing ‘Accept Lane Structure’ from the pop-up menu.
In some situations previous versions of LinSig could create Link/Lane structures which cannot currently be directly modelled using LinSig V3 Lane based modelling. The most common situation is a long Lane containing 2 or more short Lanes which is not allowed in LinSig V3 (this is described in more detail in the User Guide.) After importing a LinSig V2 file any such illegal Lane structures will be shown in red. Lanes should be deleted or edited to make them compatible with LinSig V3 before the Lane structure can be accepted into LinSig V3. Note that many of these restrictions apply only to unusual situations which could only be modelled approximately in LinSig V2. Please contact us if you would like advice on modelling these situations in LinSig V3.