Origin is not what I thought it was. Try 'position' instead of 'origin'.
Then both of these attributes should work as intended.
On Thu, Dec 19, 2013 at 3:31 PM, Jason Moore <moorepa...@gmail.com> wrote:
> The simple wrapper I have looks like:
>
> def add_torus(outer_radius, cross_section_radius, center, orientation):
> torus = mlab.pipeline.parametric_surface()
> torus.function = 'torus'
> torus.parametric_function.ring_radius = outer_radius -
> cross_section_radius
> torus.parametric_function.cross_section_radius = cross_section_radius
> mlab.pipeline.surface(torus)
> torus.children[0].children[0].actor.actor.origin = center
> torus.children[0].children[0].actor.actor.orientation = orientation
> return torus
>
> When I call this it produces a torus with correct dimensions but the
> center and orientation seem to have no effect. I don't get access to the
> .children until after the mlab.pipeline.surface(torus) call. Setting these
> traits doesn't seem to change them. Any idea what I'm missing?
>
>
> Jason
> moorepants.info
> +01 530-601-9791
>
>
> On Mon, Dec 16, 2013 at 5:23 PM, Jason Moore <moorepa...@gmail.com> wrote:
>
>> Ok, that will probably work for my case. I may just write a simple
>> wrapper class that gives me easy access to the .origin and .orientation
>> attributes.
>>
>> I'll use the points3d for the other primitives.
>>
>> Thanks.
>>
>>
>> Jason
>> moorepants.info
>> +01 530-601-9791
>>
>>
>> On Mon, Dec 16, 2013 at 5:06 PM, Roan LaPlante <aestri...@gmail.com>wrote:
>>
>>> The easiest thing to do for cones, spheres, and cylinders is to
>>> represent them as types of glyphs produced by mlab.points3d. These have
>>> positional and scale attributes which can easily be modified. Modifying
>>> their orientation is also possible (i.e. s.actor.actor.orientation) -- but
>>> will require some additional math translation to get everything aligned
>>> correctly.
>>>
>>> Torii may be a little bit trickier. It may be that the ParametricSource
>>> is the easiest way to generate a torus and then you can find ways to wrap
>>> the attributes you need. I'm not sure. If you only need to ever adjust
>>> them in a gross way with only the parameters you just mentioned, the hack
>>> of modifying s.children[0].children[0].actor.actor.origin (and
>>> s.chldren[0].children[0].actor.actor.orientation) might be reasonable.
>>> There also may be some vtk source that somebody has written that does a
>>> nicer job that you could just use instead.
>>>
>>>
>>> On Mon, Dec 16, 2013 at 4:36 PM, Jason Moore <moorepa...@gmail.com>wrote:
>>>
>>>> Sorry, default isn't to reply all on this list.
>>>>
>>>> Jason
>>>> moorepants.info
>>>> +01 530-601-9791
>>>>
>>>>
>>>> ---------- Forwarded message ----------
>>>> From: Jason Moore <moorepa...@gmail.com>
>>>> Date: Mon, Dec 16, 2013 at 4:34 PM
>>>> Subject: Re: [MayaVi-users] How to transform and rotate parametric
>>>> surfaces?
>>>> To: Roan LaPlante <aestri...@gmail.com>
>>>>
>>>>
>>>> I just want a quick way to draw primitives (tori, spheres, cones,
>>>> cylinders) in a scene with particular dimensions and be able to rotate and
>>>> translate them with respect to other objects I've created with mlab.mesh.
>>>>
>>>> Ideally I'd like something like:
>>>>
>>>> torus = mlab.Torus()
>>>> torus.center = [2., 3., 4.]
>>>> torus.orientation = [[0.1, 0.1, 0],
>>>> [0.2, 0.3, 0],
>>>> [0, 0, 1]]
>>>> torus.ring_radius = 5.0
>>>> torus.cross_section_radius = 0.2
>>>> mlab.show()
>>>>
>>>> Does the tvtk or mayavi api offer anything like this?
>>>>
>>>>
>>>>
>>>> Jason
>>>> moorepants.info
>>>> +01 530-601-9791
>>>>
>>>>
>>>> On Mon, Dec 16, 2013 at 4:21 PM, Roan LaPlante <aestri...@gmail.com>wrote:
>>>>
>>>>> Hi Jason,
>>>>>
>>>>>
>>>>> What are you trying to do? In general, mayavi does not have universal
>>>>> and easily manipulable concepts of what space its visualizations occupy.
>>>>> Rather, sources occupy some space, and different sources vary extensively
>>>>> in how easily they are manipulated (mostly because they are not very
>>>>> featureful sources in vtk, and all mayavi does is wrap the vtk source).
>>>>>
>>>>> However, in general if you're unsatisfied with the API that mayavi
>>>>> provides you to work with your visualizations, its almost always possible
>>>>> to hack these further and effectively do some vtk programming. For
>>>>> instance, if you wanted to displace this torus in the x,y,z plane, you
>>>>> could edit the s.children[0].children[0].actor.actor.origin trait.
>>>>>
>>>>>
>>>>> R
>>>>>
>>>>>
>>>>> On Mon, Dec 16, 2013 at 3:19 PM, Jason Moore <moorepa...@gmail.com>wrote:
>>>>>
>>>>>> I've created torus like so:
>>>>>>
>>>>>> from mayavi import mlab
>>>>>> s = mlab.pipeline.parametric_surface()
>>>>>> s.function = 'torus'
>>>>>>
>>>>>> And can change it's geometry like:
>>>>>>
>>>>>> s.parametric_function.ring_radius = 10.0
>>>>>>
>>>>>> But how do I transform and locate the object in the main coordinate
>>>>>> system? I can't seem to figure this out...
>>>>>>
>>>>>> Jason
>>>>>> moorepants.info
>>>>>> +01 530-601-9791
>>>>>>
>>>>>>
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>>>>
>>>>
>>>>
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