All:
I've got a script that runs really slow because I'm reading from a stream a
byte at a time:
// TERRIBLE
for y in range( height ):
for color in range(4):
for x in range( width ):
pixelComponent = fileIO.read(4)
buffer = unpack("!f",pix
08 09:11:23 -0700> From: [EMAIL PROTECTED]> To: [EMAIL
> PROTECTED]> CC: python-list@python.org> Subject: Re: How do I use the unpack
> function?> > Marlin Rowley wrote:> > All:> >> > I've got a script that runs
> really slow because I'm r
hon.org> Subject: Re: How do I use the unpack
> function?> > Marlin Rowley wrote:> > Thanks for the advice!> > > > However, I
> assumed that:> > > > fourbytes = pixelComponent[:4]> > > > would shave that
> byte off the array in pixelCom
tes and can be any
format.
> Date: Thu, 15 May 2008 10:09:45 -0700
> From: [EMAIL PROTECTED]
> CC: python-list@python.org
> Subject: Re: How do I use the unpack function?
>
> John Machin wrote:
> > On May 16, 2:11 am, Gary Herron <[EMAIL PROTECTED]> wrote:
> >
Thanks. I'll churn on this for awhile..
> Date: Thu, 15 May 2008 16:00:03 -0700> From: [EMAIL PROTECTED]> To:
> python-list@python.org> Subject: Re: How do I use the unpack function?> >
> Marlin Rowley wrote:> > Hey Gary!> > Please keep such discus
All:
I'm getting different floating point values when I use numpy vs. unpack().
frgba = numpy.frombuffer(, dtype=float32)
buffer = unpack("!f", byte)
frgba[0] != buffer[0]
why? This is forcing me use the unpack() function since it's giving me the
correct values. What am I doing wrong?
Thank you! That solved it!
-M
> To: python-list@python.org> From: [EMAIL PROTECTED]> Subject: Re:
> numpy.frombuffer != unpack() ??> Date: Fri, 16 May 2008 17:25:00 -0500> >
> Marlin Rowley wrote:> > All:> > > > I'm getting different float
M
> To: python-list@python.org> From: [EMAIL PROTECTED]> Subject: Re:
> numpy.frombuffer != unpack() ??> Date: Fri, 16 May 2008 17:25:00 -0500> >
> Marlin Rowley wrote:> > All:> > > > I'm getting different floating point
> values when I use numpy vs
008 17:08:20 -0700> From: [EMAIL PROTECTED]> To: [EMAIL
> PROTECTED]; python-list@python.org> Subject: Re: numpy.frombuffer != unpack()
> ??> > Marlin Rowley wrote:> > All:> > > > Say I have an array:> > > > a =
> ([''],
array of floats:
rgbrgbrgbrgb[from height-1]rgbrgbrgb[height = 0]
this is my final array to be drawn on the screen!
> To: python-list@python.org> From: [EMAIL PROTECTED]> Subject: Re:
> numpy.frombuffer != unpack() ??> Date: Fri, 16 May 2008 18:50:38 -0500> >
All:
Say I have a series of arrays arranged like so:
[[[0,1,2,3]
[4,5,6,7]
[8,9,10,11]
[12,13,14,15]]
[[16,17,18,19]
[20,21,22,23]
[24,25,26,27]
[28,29,30,31]]]
Now if I do this: transpose((2,0,1)), I get this:
[[[0,4,8,12] [16,20,24,28]]
[[1,5,9,13] [17,21,25,29]]
[[2,6,10,14][18,22,26,3
10,14][3,7,11,15][16,20,24,28][17,21,25,29][18,22,26,30][19,23,27,31]
How do I do this? -M
> Date: Sat, 17 May 2008 08:58:08 -0700> From: [EMAIL PROTECTED]> To: [EMAIL
> PROTECTED]> CC: python-list@python.org> Subject: Re: numpy.frombuffer !=
> unpack() ??> > Marli
hon.org> Subject: Re: numpy.frombuffer !=
> unpack() ??> > Marlin Rowley wrote:> > Actually in my traversal of the
> never-ending maze of understanding > > arrays in python, I stumbled that the
> data in the wrong sequence.> >> > Let's get back to this transpos
All:
I've got a script that runs really slow because I'm reading from a stream a
byte at a time:
// TERRIBLE
for y in range( height ):
for color in range(4):
for x in range( width ):
pixelComponent = fileIO.read(4)
buffer = unpack("!f"
All:
Say I have an array:
a = ([''],[''])
How do I make it so that I now have:
starting with first element (a[0])
new_arr[0] = 'r'
new_arr[1] = 'g'
new_arr[2] = 'b'
new_arr[3] = 'a'
new_arr[4] = 'r'
.
continuing "through" a[1] with the same new_arr
new_
All: Say I have an array: a = ([''],['']) How
do I make it so that I now have: starting with first element (a[0])new_arr[0] =
'r'new_arr[1] = 'g'new_arr[2] = 'b'new_arr[3] = 'a'new_arr[4] = 'r'.
continuing "through" a[1] with the same new_arrnew_arr[N] = 'r'ne
All: Say I have an array: a = ([''],['']) How
do I make it so that I now have: starting with first element (a[0])new_arr[0] =
'r'new_arr[1] = 'g'new_arr[2] = 'b'new_arr[3] = 'a'new_arr[4] = 'r'.
continuing "through" a[1] with the same new_arrnew_arr[N] = 'r'ne
All:
I have a class object which has the usual data members and functions. I'm
trying to make a copy of this class (which includes wx.Bitmap objects) but
deepcopy() doesn't seem to work. How would I do this?
-M
_
E-mail for the
ct?> Date: Thu, 22 May 2008 17:52:02 -0400> >
> "Marlin Rowley" <[EMAIL PROTECTED]> wrote in message > news:[EMAIL
> PROTECTED]> > I have a class object which has the usual data members and
> functions.> > I'm trying to make a copy of this c
Is there any function that allows reading a stream of floats through the Telnet
Object? There doesn't seem to be a way to control reading from the socket
accept read_until() and that requires a string.
-M
_
Use video conversation
Hmm.. I'm just now learning wxPython and it's very very easy to me. Perhaps
because I've delved into other GUI APIs like GLUT and Windows DirectX.
Programming in C++ seems a pain when coming from Python. I'll let you know
more when I delve more into it.
-M
> From: [EMAIL PROTECTED]> Subj
I have a thread that I've created from a main program. I started this thread
and passed it a function to execute. Within this function are 'print'
statements. While they are directly translated to the stdout, I would love to
return them back to the program itself and store them in an object.
I think I've found a bug in the wx Library.
I've created an event : EVT_IDLE that does something when the event is
triggered, however, if your mouse pointer is out-of-focus on the window, the
EVT_IDLE doesn't get called. It's only when the window is put into focus that
the IDLE event is ca
Bump.
From: [EMAIL PROTECTED]
To: python-list@python.org
Subject: Which event to use for out of focus window?
Date: Fri, 18 Apr 2008 10:25:40 -0500
I think I've found a bug in the wx Library.
I've created an event : EVT_IDLE that does something when the event is
triggered, however, i
I'm desperately spending too much time trying to understand wxPython and it's
leading me nowhere.
I'm trying to make a script that will create a window, and then immediately
fill this window with a background color. I also want to be able to fill this
window with a background color anytime I n
25 matches
Mail list logo
