Bugs item #1778930, was opened at 2007-08-21 21:04
Message generated for change (Comment added) made by dooglus
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: dooglus (dooglus)
Assigned to: Nobody/Anonymous (nobody)
Summary: tangent 'theta' waypoints change from TCB to Linear on load
Initial Comment:
If I animate a bline's tangents and look at the generated waypoints, they are
all green (since I'm using the default TCB Smooth interpolation).
If I then save the .sif file, rename it and open the renamed file, some of the
waypoints are now yellow. Specifically all of the tangents' "Theta" waypoints.
Maybe it's right that these angle parameters are interpolated linearly rather
than smoothly, I don't know, but why does it change when I reload the file,
rather than when I first animate the tangents?
----------------------------------------------------------------------
>Comment By: dooglus (dooglus)
Date: 2007-09-17 17:51
Message:
Logged In: YES
user_id=1546005
Originator: YES
When saving waypoints, synfig doesn't mark TCB waypoints as TCB, because
'that's the default'. But when loading, unmarked angle waypoints are set
to linear, because 'that's the default'.
In svn r692 I changed the save code to mark angles if they're not linear,
and other types if they're not TCB. Next I'll change the code which
creates angle waypoints to get them to default to linear interpolation.
----------------------------------------------------------------------
Comment By: dooglus (dooglus)
Date: 2007-08-21 21:20
Message:
Logged In: YES
user_id=1546005
Originator: YES
The first time I save the file, I see the theta waypoints like this:
<c1>
<animated type="angle">
<waypoint time="0s">
<angle value="-135.000000"
guid="41F37C14FF220E3B82B1609DDF72A2AE"/>
</waypoint>
<waypoint time="1s">
<angle value="-112.121941"
guid="FFE85657CC4FB41D0F77A836EF131B54"/>
</waypoint>
</animated>
</c1>
if I reload and save again, I see them like this:
<c1>
<animated type="angle">
<waypoint time="0s" before="linear" after="linear">
<angle value="-135.000000"/>
</waypoint>
<waypoint time="1s" before="linear" after="linear">
<angle value="-112.121941"/>
</waypoint>
</animated>
</c1>
Notice that the GUID values have disappeared (why were they saved anyway?
I hadn't done any linking at all) and the 'before' and 'after' values have
appeared.
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