> 2009/7/4 Ben Park :
>
> import numpy as np
> import numpy.ma as ma
>
> # There is no effect on the following assignment of ma.masked.
> a1 = ma.arange(10).reshape((2,5))
> a1.ravel()[np.array([0,2,2])] = ma.masked
In some situations ravel has to return a copy of the data instead of a
view. You'r
On Sun, Jul 5, 2009 at 11:52 PM, Gael Varoquaux <
gael.varoqu...@normalesup.org> wrote:
> On Sun, Jul 05, 2009 at 07:08:37PM -0500, Gökhan SEVER wrote:
> >Do you have any idea, why spheres have rough edges on Mayavi?
>
> If you are using 'mlab.points3d', you want to increase the 'resolution'
>
On Sun, Jul 05, 2009 at 07:08:37PM -0500, Gökhan SEVER wrote:
>Do you have any idea, why spheres have rough edges on Mayavi?
If you are using 'mlab.points3d', you want to increase the 'resolution'
keyword argument. It is kept quite low so that you can plot gazzilions of
points.
Gaël
_
Thanks for the example, Stéfan!
I'm trying to work this into a position texture, and the arrays need
interleaving. I tried a couple times. Here's what I have:
az = numpy.random.uniform(0, numpy.pi * 2, size*size)
el = numpy.random.uniform(0, numpy.pi, size*size)
r = numpy.random.uniform(size*si
Sorry for the cross post, but almost immediately after hitting send (to
scipy-user) I realized this is the more appropriate list for the below. :-(
DG
Hi, folks. I'm having a problem using numpy.lookfor() that is very reminiscent
of this thread:
http://mail.scipy.org/pipermail/scipy-user/200
2009/7/5 Stéfan van der Walt
> 2009/7/5 Ian Mallett :
> > @Stéfan: I thought of the first method. Let's hear the second approach.
>
> Please see the attached example.
>
> I start off by drawing random azimuth and elevation angles, as well as a
> radii:
>
> N = 1000
> max_radius = 5
>
> az = np.r
2009/7/5 Ian Mallett :
> @Stéfan: I thought of the first method. Let's hear the second approach.
Please see the attached example.
I start off by drawing random azimuth and elevation angles, as well as a radii:
N = 1000
max_radius = 5
az = np.random.uniform(low=0, high=np.pi * 2, size=N)
el = n
@Stéfan: I thought of the first method. Let's hear the second approach.
@Gökhan: Yes. Toolbox is my metaphor for being able to do effects in
OpenGL. Point sprites are images mapped onto vertices, VBOs are *v*ertex *b
*uffer *o*bjects, that make stuff faster.
_
On Sun, Jul 5, 2009 at 3:48 PM, Ian Mallett wrote:
> Presently, it's being rendered using point sprites/VBOs. It's supposed to
> be for a game I'm working on, but it's a good effect to have in the toolbox
> too :D
>
> ___
> Numpy-discussion mailing lis
2009/7/5 Ian Mallett :
> I'm trying to get a cloud particle system working. As part of determining
> the depth of every point (to get the light that can pass through), it makes
> sense that the volume should be of even density. The volume is a sphere.
> Currently, I'm using:
>
> vecs = numpy.rand
Presently, it's being rendered using point sprites/VBOs. It's supposed to
be for a game I'm working on, but it's a good effect to have in the toolbox
too :D
___
Numpy-discussion mailing list
Numpy-discussion@scipy.org
http://mail.scipy.org/mailman/listin
On Sun, Jul 5, 2009 at 3:30 PM, Ian Mallett wrote:
> Hello,
>
> I'm trying to get a cloud particle system working. As part of determining
> the depth of every point (to get the light that can pass through), it makes
> sense that the volume should be of even density. The volume is a sphere.
> Cu
Hello,
I'm trying to get a cloud particle system working. As part of determining
the depth of every point (to get the light that can pass through), it makes
sense that the volume should be of even density. The volume is a sphere.
Currently, I'm using:
vecs = numpy.random.standard_normal(size=(s
On Sun, Jul 05, 2009 at 02:47:18PM -0400, Andrew Friedley wrote:
> Stéfan van der Walt wrote:
> > 2009/7/5 Andrew Friedley :
> >> I found the check that does the type 'upcasting' in
> >> umath_ufunc_object.inc around line 3072 (NumPy 1.3.0). Turns out all I
> >> need to do is make sure my add and
Stéfan van der Walt wrote:
> 2009/7/5 Andrew Friedley :
>> I found the check that does the type 'upcasting' in
>> umath_ufunc_object.inc around line 3072 (NumPy 1.3.0). Turns out all I
>> need to do is make sure my add and multiply ufuncs are actually named
>> 'add' and 'multiply' and arrays will
Hi Andrew
2009/7/5 Andrew Friedley :
> I figured this out in case anyone is interested.
>
> I found the check that does the type 'upcasting' in
> umath_ufunc_object.inc around line 3072 (NumPy 1.3.0). Turns out all I
> need to do is make sure my add and multiply ufuncs are actually named
> 'add'
I figured this out in case anyone is interested.
I found the check that does the type 'upcasting' in
umath_ufunc_object.inc around line 3072 (NumPy 1.3.0). Turns out all I
need to do is make sure my add and multiply ufuncs are actually named
'add' and 'multiply' and arrays will be upcasted app
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