Void Timelines.ImportMarkersFromString(
  Int32 timelineId, 
  String importMappingVersion, 
  String csvFilePath, 
  AcwFrameRate frameRate
)

This article was written with massive help from Gregory Haynes; I couldn't have figured this out myself.

There is also the function Timelines.ImportMarkers, however that would expect an XML object as importMappingVersion while this function here parses a string which is much easier to handle.

• timelineId is the identifier or the timeline you want to import the markers into. Unlike for other functions which expect a handle this one expects a titanId. You may retrieve this e.g. from Web API, or you use e.g. Handles.GetTitanIdFromHandle to get the titanId for a specific handle by its usernumber:
  • Timelines.ImportMarkersFromString(1819, …) – example with hardcoded titanId
  • Timelines.ImportMarkersFromString(Handles.GetTitanIdFromHandle(“timelineHandleUN=1”), …) – example to get the titanId from a usernumber
• importMappingVersion is a string to be parsed as XML that can define what all the columns are and how to read them.

Example CSV File:

externalId,legend,time 
0,Test,00:00:01.00
blah,Marker 2,00:01:23.00
999,Another Marker,00:12:34.56

By default it will assume that the CSV file contains headers and it will attempt to use those to figure out which column is which. If it cannot figure out the column headers it will assume the order specified above i.e. “externalId”, “legend” then “time”. The external ID can be whatever you want and is used within Titan to detect duplicates i.e. if you import more than once a matching external ID will replace an existing one.

The smallest possible string as importMappingVersion is “<Version />” which essentially is “<Version />” with the angled brackets written as entities (otherwise they'd be interpreted as XML which would break the macro XML)

Here is an example of what that string could be (single quotes used instead of double quotes to make it easier to use in a string):

<Version id='1' name='2020' headerRow='true'><externalId name='#' index='0' /><legend name='Name' index='1' /><time name='Start' index='2' format='' /></Version> (again the angled brackets need to be written as entities < and > when using this).

• csvFilePath is the absolute path (including filename) to the file which is to be imported, e.g. “C:\Users\{username}\Documents\Titan\Markers\test.csv”.
• frameRate is the framerate to import. This is important to convert frame numbers with different framerates (not tested yet). The API lists AcwFrameRate as Enumeration:

However it looks like you need to use Timecode.ParseFrameRate in order to convert the vaue into a proper framerate object, e.g. Timecode.ParseFrameRate(100).

Timeline: Import Markers:

<step>Timelines.ImportMarkersFromString(
  Handles.GetTitanIdFromHandle("timelineHandleUN=1"), 
  "&lt;Version /&gt;", 
  "C:\Users\sb\Documents\Titan\Markers\test.csv", 
  Timecode.ParseFrameRate(100))
</step>