Try<br><br>bpy.context.scene.frame_set()<br><br>Operators rely on context so it can get hard to satisfy them (you could also try making a timeline window visible). You can override context by paying an optional dict to the operator but I've found this tricky to get right in practice.<br>Oh, and welcome to this blender thing,<br>Bassam<br><br> "Cook, Rich" <cook47@llnl.gov> wrote:<br><br><html>
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Hi, I'm new to this here blender thingie. I was trying some code out to import a few meshes from a science run, and am getting an error I cannot get past. I was going to import the timesteps as separate meshes, then set keyframes on visibility for each mesh
at different timesteps in order to "animate" them. Per <a href="http://blenderscripting.blogspot.de/2011/07/scripted-keyframing-of-hide-hide-render.html">http://blenderscripting.blogspot.de/2011/07/scripted-keyframing-of-hide-hide-render.html</a>
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<div>I am getting the following error: </div>
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<div>>>> bpy.ops.anim.change_frame(frame = 5)</div>
<div>Traceback (most recent call last):</div>
<div> File "<blender_console>", line 1, in <module></div>
<div> File "/Volumes/MacProHD/cook47-stuff/Programs/graphics/Blender/blender.app/Contents/MacOS/2.68/scripts/modules/bpy/ops.py", line 188, in __call__</div>
<div> ret = op_call(self.idname_py(), None, kw)</div>
<div>RuntimeError: Operator bpy.ops.anim.change_frame.poll() Expected an timeline/animation area to be active</div>
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<div>I do have a timeline visible in the GUI. I'm not sure what blender is trying to tell me. </div>
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<div>I'm probably going to change approaches and just load one mesh at a time, set up the scene, render, and move to the next, etc. However, my technical curiosity has the best of me here. I'd like to understand why I cannot set a timestep here.</div>
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<div>Thanks! </div>
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