The 'spin' animation has a strange behaviour:
it pushes a temporary rotation matrix on the transformation stack during
cull traversal, and removes it thereafter.
Thus, the rotation matrix is missing outside of cull traversal, e.g.
when the position of Compositor lights is computed.
The same issue was fixed for the 'rotate' animation by commit
e202d4e4a5
(this mentions broken 'picking' animations as a different manifestation
of the same issue).
Fix this by setting the angle of the persistent SGRotateTransform,
instead of creating a temporary rotation matrix.
Designed for 2d objects, such as a canvas placements, this permits the receipt of touch (mouse click) events to enable the simulation of avionics with a touchscreen.
The coordinates are passed in as arguments to the action; these can be accessed with Nasal via the cmdarg() method.
example:
<animation>
<type>touch</type>
<visible>true</visible>
<object-name>VSDImage</object-name>
<action>
<touch>0</touch>
<repeatable>false</repeatable>
<binding>
<command>nasal</command>
<script>print("touch input
(",cmdarg().getNode("x").getValue(),",",cmdarg().getNode("y").getValue())</script>
</binding>
</action>
</animation>
By default you can either do
1. axis -> object-name ...
2. axis -> x-m ...
3. omit axis. This will now try to find an 'object-name' with -axis appended. If this can't be found then no message will be output; and the default behaviour of just using (0,0,0) will appyl.
Applicable to / works with rotate, translate and knob. Once the axis object-name has been used it will be hidden, however it still can be used for object-name animations. The hiding of the axis object is a useful guide as to what is left to be wired up to animations.
This allows the follow to work (on a combined ASI / Mach instrument).
<animation>
<type>rotate</type>
<object-name>asi-needle</object-name>
...
<axis>
<object-name>airspeed-asi-axis</object-name>
</axis>
</animation>
<animation>
<type>rotate</type>
<object-name>asi-mach-scale</object-name>
...
<axis>
<object-name>airspeed-asi-axis</object-name>
</axis>
</animation>
This allows tracking elements while at the same time changing the
rotation of both animated elements to fill the available distance
to the target element. This allows for example animating gear
scissors or other connected objects like gear doors and their
actuators/arms (possibly connected to the gear strut).
Move osg dependent stuff from SGMath into simgear/scene/util/OsgMath.hxx.
Update includes in simgear to reflect this change.
Note that this change also requires an updated flightgear version.
Set OVERRIDE and PROTECTED attributes on pick animation state
attributes. Set up attributes and add a colorMode uniform so that the
default shader will take color and alpha values from the
material. Also, add a DotOsg writer method for ConditionNode.
Alex Perry: Adds a new pick animation capability which parallels the existing
"action" for a named object. Specifying "vncaction" and a transform
from model space will enable all mouse clicks on that object to be
delivered directly to the OSG image. Currently, the readers for VNC
and PDF files yield interactive images; more are likely to be added
over time.
Polymorphic additions to expressions: Add an expression base class
with a method for dynamically determining the type of an expression.
Add variables, predicates and boolian expressions.
Support for parsing trees of expressions
1. by using center/x-m and axis/[xyz]
2. by using axis/[xyz]1-m and axis/[xyz]2-m
The translate animation only supports method 1. and here comes a patch that
enables method 2 for this animations, too.
this is a small (-1/+3) patch to fix pick animations on scenery objects.
since picking apparently doesn't care for polygon offsets, the objects
got into the picklist in the wrong way. now, no matter if the "highlight
group" or the "normal group" gets hit first, the callback will fire.
Colin Geniet