visualpython-users

Re: [Visualpython-users] Mac IDLE fix

[James M. <mu...@pi...>]

I just realized I responed to Scott and not the entire list, so I  
paste that here.

In the meantime. here are three issues listed  the python tracker.

2754  	6 days ago  	 Mac version of IDLE doesn't scroll as expected   	 
open  	alextrob
http://bugs.python.org/issue2754

3549  	6 days ago  	 Missing IDLE Preferences on Mac   	pending  	pchew
http://bugs.python.org/issue3549

After reading the first one, I can verify that I see this effect too.

The second one states that the Options->Configure menu has become IDLE- 
 >Preferences on the mac, but there was a bug in how they checked the  
Tk version.  So it should bite you if you have a version of Tk >=  
8.4.10.  It states that this was fixed on Friday and is in the trunk  
and backported to the 2.6 and 3.1 versions of Python.  (3.1?)

Anyway below is my previous message, which is probably out of date now.

> I have tried out idle from both the current Enthought and the one that
> comes with MacPython.  The only things I see are:
>
> 1) If I open a new window, or open a file, occasionally I get an error
>
> RCNE SendEventToEventTarget (suom Moved               ) failed, -50
>
> This does not happen every time, and maybe it could happen selecting
> other menu items.  I haven't tried everything, and it is intermittent
> on those where I do see it.  I can't give an impression of whether it
> occurs more frequently in one distribution than another, because after
> playing for 5 minutes on each, I only have a handful of instances
> total.  Any comparison would no be statistically significant, but it
> does not seem to be a large problem.  Of course that might just be my
> hardware.
>
> 2) If I click in one window and then back in source window, Focus is
> changed to the source window but the cursor position is still where it
> was when I was last in that window.  Once focus has been shifted to
> that window, cursor move properly when I click on text.  This is a
> "feature" that I see all the time on Macs.  When I have two browser
> windows open I click on a button in one, it has no effect unless that
> window already has the focus.  This is sometimes annoying for me in
> that I don't want to have to click twice to get something to happen.
> Other times I am happy that the button I just happen to click on while
> trying to bring a window to the front didn't actually register the
> click.
>
> 3) I haven't been able to get the scrollbar problem to occur, but
> again if it is an intermittent problem, perhaps I just haven't tried
> long enough.
>
> 4) The reason that the new Enthought distribution has a "Configure
> IDLE" menu option is that they threw out the IDLE.app.  Instead they
> provide a simple shell script, ".command" which then runs   "/Library/
> Frameworks/Python.framework/Versions/Current/bin/idle" in a console
> window.  So the configure problem is in IDLE.app, not idle.


-Jim


On Jan 8, 2009, at 12:47 PM, Bruce Sherwood wrote:

> I've verified that the Visual 5.01 works with the latest MacPython
> 2.5.4, and I've changed the Visual 5 download pages for Mac and  
> Windows
> to reference the recent 2.5.4 release instead of 2.5.2.
>
> However, when I install MacPython 2.5.4, overwriting 2.5.2 but leaving
> the Visual 5.01 files in place, Visual hangs (like the problem  
> sometimes
> seen with Visual 5.01 when running for the first time on a Mac).
> Reinstalling Visual 5.01 cures the problem. Strange.
>
> Bruce Sherwood
>
> Joe Heafner wrote:
>>    Date: Wed, 07 Jan 2009 13:26:09 -0500
>>    From: Bruce Sherwood <Bru...@nc...
>>    <mailto:Bru...@nc...>>
>>    Subject: [Visualpython-users] Mac IDLE fix
>>    To: vpusers <vis...@li...
>>    <mailto:vis...@li...>>
>>    Message-ID: <496...@nc...
>>    <mailto:496...@nc...>>
>>    Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>>
>>    The version of IDLE that comes with Python on the Mac is  
>> defective. In
>>    particular, it does not offer a menu option to configure IDLE.  
>> If you
>>    would like to have a larger font size, to have your file  
>> automatically
>>    saved when you run (if you changed it), the ability to be able  
>> to make a
>>    change and re-run your program without being interrupted by  
>> being asked
>>    whether to save the file, and to have the Visual help available  
>> on the
>>    IDLE help menu, download the file idlerc.zip and unzip it in  
>> your home
>>    folder (e.g. /Users/tom). Depending on your Finder settings, you  
>> may not
>>    see the resulting folder ".idlerc", but it will be used by IDLE  
>> (in a
>>    Terminal you can see it if you execute "ls -a").
>>
>>
>> Seems to work fine for me. I've installed the new Mac VPython on  
>> all 12
>> of my MacBooks at work and we'll start using it tomorrow. Will  
>> applying
>> MacPython 2.5.x updates break Visual? For some time, I was under the
>> impression that my VPython installed via Fink was using Python 2.6  
>> but I
>> was mistaken. Now I've no idea what package caused Python 2.6 to be
>> installed under Fink, but I can't remove it because something else
>> depends on it. Funny...
>>
>> Joe
>>
>>
>> ------------------------------------------------------------------------
>>
>> ------------------------------------------------------------------------------
>> Check out the new SourceForge.net Marketplace.
>> It is the best place to buy or sell services for
>> just about anything Open Source.
>> http://p.sf.net/sfu/Xq1LFB
>>
>>
>> ------------------------------------------------------------------------
>>
>> _______________________________________________
>> Visualpython-users mailing list
>> Vis...@li...
>> https://lists.sourceforge.net/lists/listinfo/visualpython-users
>
> ------------------------------------------------------------------------------
> Check out the new SourceForge.net Marketplace.
> It is the best place to buy or sell services for
> just about anything Open Source.
> http://p.sf.net/sfu/Xq1LFB
> _______________________________________________
> Visualpython-users mailing list
> Vis...@li...
> https://lists.sourceforge.net/lists/listinfo/visualpython-users

Re: [Visualpython-users] Text disappears after hiding the scene ...

[Stef M. <s.m...@ru...>]

Bruce Sherwood wrote:
> I've seen this label bug with font='serif' but not with the default 
> sans-serif font that it looks like you've used. Could you please post 
> the actual code you used to generate the picture?
AFAIK, I didn't set the font,
so where is the font coming from.
Code below.
>
> I stand however by my previous statement that the only "significant 
> differences" are those listed.
I agree it's not really significant.

cheers,
Stef
>
> Bruce Sherwood
>
#-----------------------------------------------------
# Demo of a symmetric (I1=I2) gyroscope. It uses
# numerical integration with a primitive mid point
# solver of Euler's equations using the Euler angles
# [phi,theta,psi] as variables.
#
# Left mouse toggles the display of the trail of the
# orbit of the tip of the gyroscope.
#
# Right mouse toggles the display of the vectors L and
# omega (angular momentum and velocity).
#
# Center mouse button (or left+right) zooms the view.
#
# ** To exit press ESC **
#
# by E. Velasco. December 2004
#-----------------------------------------------------
from visual import *

# Initial conditions for the Euler angles
phi = 0. 
phidot = -2.6
theta = pi/4             # Must satisfy 0<theta<pi
thetadot = 1. 
psi = 0.    
psidot = 50.             # Fast for the gyro to work

# Constant definitions
Ulenght = 1.0        # Unit of lenght in m
Lshaft = 0.8         # length of gyroscope shaft
Rshaft = 0.03        # radius of gyroscope shaft
Hshaft = Lshaft/15.  # height of cone tip of shaft
Cshaft = (0,0.6,0.9) # Color of shaft


Rrotor = 0.38        # radius of gyroscope rotor
Drotor = 0.12        # thickness of gyroscope rotor
Lcm    = Lshaft/1.8+Hshaft  # Distance of cm to fixed point
Crotor =  (0,0.5,0.8)       # Color of rotor
Cbraces = (1,0.1,0)         # Color of braces of rotor
 
hpedestal = Lshaft   # height of pedestal
wpedestal = 0.17     # Width of pedestal
Cpedestal = (0.4,0.4,0.5)   # Color of pedestal and base
tbase = 0.05         # thickness of base
wbase = 4.*wpedestal        # width of base

Lvector = 1.05*Lshaft +2*Hshaft
CL = (1,0.4,1)         # Color of angular momentum
COmega = color.green   # Color of angular velocity
Ctrail = color.yellow  # Color of the trail of the tip of gyro
ShowVectors = 0
ShowTrail = False

# Moments of inertia divided by mass (only from rotor)
I1 = 0.25*(Rrotor**2+Drotor**2) + Lcm**2
I3 = 0.5*Rrotor**2

# Components of the angular velocity in the MOVING frame
omega1 = phidot*sin(theta)*sin(psi)+thetadot*cos(psi)
omega2 = phidot*sin(theta)*cos(psi)-thetadot*sin(psi)
omega3 = phidot*cos(theta)+psidot  # A constant of motion

gL_I = 9.8*Lcm/(I1*Ulenght)
Delta = (I3-I1)/I1*omega3

# Window properties. Define them before creating visual objects.
#scene.width=700
#scene.height=600
#scene.fullscreen = 1    # Change it to 0 to get a floating window
#scene.title='Gyroscope'
scene.userspin = 0       # No rotation with mouse
scene.forward = (-1,0,0) # View from the +x axis slightly down
scene.up = (0,0,1)
scene.range=(1.9*Lshaft,1.9*Lshaft,1.9*Lshaft)
scene.ambient=0.3
scene.lights = [0.3*norm((1,-0.5,-0.2)),0.5*norm((1,0.5,0.2))]
scene.autoscale = 0

label ( pos = ( 0, 0, 1.2 ), text = 'Left-Click: Toggle orbit of tip' )
label ( pos = ( 0, 0, 1.0 ), text = 'Right-Click: Toggle L and w' )

# A function that returns the three moving unit vectors
def MovingFrame(phi,theta,psi):
    CosPhi = cos(phi); SinPhi = sin(phi)
    CosTheta = cos(theta); SinTheta = sin(theta)
    CosPsi = cos(psi); SinPsi = sin(psi)
    V1 = vector(CosPhi*CosPsi-CosTheta*SinPhi*SinPsi,
                SinPhi*CosPsi+CosTheta*CosPhi*SinPsi,
                SinTheta*SinPsi)
    V3 = vector(SinTheta*SinPhi,-SinTheta*CosPhi, CosTheta)
    V2 = cross(V3,V1)
    return (V1,V2,V3)

# A function that returns an L in the y-z plane displaced by V
def Char_L(V):
    sz = 0.017 # size of letter
    return [V+vector(0,-sz,3*sz),V+vector(0,-sz,0), V+vector(0,sz,0)]

# Build a leter omega in the y-z plane
sz_omega  = 0.015   # size of letter
Npts = 10
alpha0=2*pi/3
Dalpha = (2*pi-alpha0)/(Npts-1)
l_omega = []
for k in range(Npts):
    alpha = alpha0+k*Dalpha
    l_omega.append(sz_omega*vector(0,cos(alpha)-1,1+sin(alpha)))
for k in range(Npts):
    alpha = pi+k*Dalpha
    l_omega.append(sz_omega*vector(0,1+cos(alpha),1+sin(alpha)))
letter_omega = array(l_omega) # Use a numeric array for efficiency

# A function that returns a omega in the y-z plane displaced by V
def Char_omega(V):
    char=array([V])+letter_omega  # Fast numeric array addition
    return char
 
# Get the vectors angular velocity and angular momentum in fixed frame
(V1,V2,V3) = MovingFrame(phi,theta,psi)
Omega = omega1*V1+omega2*V2+omega3*V3
L = I1*omega1*V1+I1*omega2*V2+I3*omega3*V3
OmegaScale = Lvector/mag(Omega)
LScale = Lvector/mag(L)

Omega_body = curve(pos=[(0,0,0),0.95*OmegaScale*Omega], color=COmega,
                   radius=0.01, visible=ShowVectors)
Omega_tip = cone(pos=0.95*OmegaScale*Omega, axis=0.05*OmegaScale*Omega,
                 radius=0.02, color=COmega, visible=ShowVectors)
Omega_label = curve(pos=Char_omega(1.05*OmegaScale*Omega), color=COmega,
                    radius=0.005, visible=ShowVectors)

L_body = curve(pos=[(0,0,0),0.95*LScale*L], color=CL, radius=0.01,
             visible=ShowVectors)
L_tip = cone(pos=0.95*LScale*L, axis=0.05*LScale*L, radius=0.02,
             color=CL, visible=ShowVectors)
L_label = curve(pos=Char_L(1.05*LScale*L), color=CL,
                radius=0.006, visible=ShowVectors)

# Define the fixed support of the gyro
support=frame()
pedestal = pyramid(pos=(0,0,-hpedestal), axis = (0,0,hpedestal),
                   size=(hpedestal,wpedestal,wpedestal),
                   color=Cpedestal, frame=support)
base = box(pos=(0,0,-hpedestal-tbase/2.),
                 height=wbase, length=tbase, width=wbase,
                 axis=(0,0,1), color=Cpedestal,frame=support)
sphere(pos=(0,0,0), radius=0.01, color=Cshaft) # Articulation at the pivot

# Bolts
B1 = sphere(pos=(wbase/2.3,wbase/2.3,-hpedestal),radius=wbase*0.04,
            color=Cpedestal, frame=support)
B2 = sphere(pos=(wbase/2.3,-wbase/2.3,-hpedestal),radius=wbase*0.04,
            color=Cpedestal, frame=support)
B3 = sphere(pos=(-wbase/2.3,wbase/2.3,-hpedestal),radius=wbase*0.04,
            color=Cpedestal, frame=support)
B4 = sphere(pos=(-wbase/2.3,-wbase/2.3,-hpedestal),radius=wbase*0.04,
            color=Cpedestal, frame=support)

support.rotate(angle=pi/7, axis=(0,0,1))

# Define the gyro
gyro=frame(visible=0)
pivot = cone(pos=(0,0,Hshaft), axis=(0,0,-Hshaft), color=Cshaft,
             frame=gyro, radius=Rshaft)
shaft = cylinder(axis=(0,0,Lshaft), pos=pivot.pos,
                 radius=Rshaft, color=Cshaft, frame=gyro)
tip = cone(pos= pivot.pos+shaft.axis, axis=(0,0,Hshaft),
           color=Cshaft, radius=Rshaft, frame=gyro)
rotor = cylinder(pos=(0,0,Lcm - Drotor/2), radius=Rrotor,
                 axis=(0,0,Drotor), color=Crotor, frame=gyro)
# Braces of rotor
cylinder(pos =(-Rrotor,0,Lcm - Drotor/3.), radius=Drotor/2,
               axis=(2*Rrotor,0,0), color=Cbraces, frame=gyro)
cylinder(pos =(0,-Rrotor,Lcm - Drotor/3.), radius=Drotor/2,
               axis=(0,2*Rrotor,0), color=Cbraces, frame=gyro)
cylinder(pos =(-Rrotor,0,Lcm + Drotor/3.), radius=Drotor/2,
               axis=(2*Rrotor,0,0), color=Cbraces, frame=gyro)
cylinder(pos =(0,-Rrotor,Lcm + Drotor/3.), radius=Drotor/2,
               axis=(0,2*Rrotor,0), color=Cbraces, frame=gyro)
ring(pos=(0,0,Lcm), radius=Rrotor, thickness=Drotor/2, axis=(0,0,1),
     color=Cbraces, frame=gyro)

# Rotate gyro to its starting position

    # First rotate by phi around the z axis
gyro.rotate(angle=phi, axis=(0,0,1))

    # Use the new x axis (Vx) and rotate by theta
Vx=(cos(phi),sin(phi),0)
gyro.rotate(angle=theta, axis=Vx)

    # Use the final z axis (V3) and rotate by psi
gyro.rotate(angle=psi, axis=V3)

gyro.visible=1  # Make the gyro visible


# Curve described by tip of gyro
trail = curve(radius=0, color=Ctrail)

dt = 0.0002     # Time step
dt = 0.004
dt2 = dt/2      # Half time step

# First rotate the gyro around current Omega by mag(Omega)*dt2
gyro.rotate(angle=mag(Omega)*dt2, axis=Omega)

while 1:
    #rate(800)
    rate (50)

    # Find midtime variables
    CosPsi = cos(psi); SinPsi=sin(psi); SinTheta=sin(theta)
    phidot = (SinPsi*omega1+CosPsi*omega2)/SinTheta
   
    phi_m = phi + phidot*dt2
    theta_m = theta + (CosPsi*omega1 - SinPsi*omega2)*dt2
    psi_m = psi + (omega3-phidot*cos(theta))*dt2
    omega1_m = omega1 +(gL_I*SinTheta*CosPsi-Delta*omega2)*dt2
    omega2_m = omega2 -(gL_I*SinTheta*SinPsi-Delta*omega1)*dt2

    # Get the full step variables
    CosPsi_m = cos(psi_m); SinPsi_m=sin(psi_m); SinTheta_m=sin(theta_m)
    phidot_m = (SinPsi_m*omega1_m+CosPsi_m*omega2_m)/SinTheta_m
   
    phi +=  phidot_m*dt
    theta +=  (CosPsi_m*omega1_m - SinPsi_m*omega2_m)*dt
    psi += (omega3 - phidot_m*cos(theta_m))*dt
    omega1 += (gL_I*SinTheta_m*CosPsi_m - Delta*omega2_m)*dt
    omega2 -= (gL_I*SinTheta_m*SinPsi_m - Delta*omega1_m)*dt

    # Get the vectors angular velocity and momentum in the fixed frame
    (V1,V2,V3) = MovingFrame(phi,theta,psi)
    Omega = omega1*V1+omega2*V2+omega3*V3
    L = I1*omega1*V1+I1*omega2*V2+I3*omega3*V3
   
    # Toggle Painting the trail and the L w vectors
    if scene.mouse.events:
        mouseObj = scene.mouse.getevent()
        scene.mouse.events = 0
        if mouseObj.click == "left":   # Toggle orbit of tip
            if ShowTrail == True:
                ShowTrail = False
                trail.pos=[]
            else: ShowTrail = True
        if mouseObj.click == "right":  # Togle display of L and w
            ShowVectors = 1 - ShowVectors
            L_body.visible = L_tip.visible = ShowVectors
            L_label.visible = ShowVectors
            Omega_body.visible = Omega_tip.visible = ShowVectors
            Omega_label.visible = ShowVectors

    # Update the trail and the L w vectors
    L_body.pos = [(0,0,0),0.95*LScale*L]
    L_tip.pos=0.95*LScale*L;
    L_tip.axis=0.05*LScale*L
    L_label.pos=Char_L(1.05*LScale*L)
    Omega_body.pos = [(0,0,0),0.95*OmegaScale*Omega]
    Omega_tip.pos=0.95*OmegaScale*Omega;
    Omega_tip.axis=0.05*OmegaScale*Omega
    Omega_label.pos=Char_omega(1.05*OmegaScale*Omega)

    if ShowTrail == True:
        trail.append(pos=V3*(Lshaft+2*Hshaft))
           
    # Rotate the gyro around new Omega by mag(Omega)*dt
    gyro.rotate(angle=mag(Omega)*dt, axis=Omega)

Re: [Visualpython-users] Text disappears after hiding the scene ...

[Bruce S. <Bru...@nc...>]

I've seen this label bug with font='serif' but not with the default 
sans-serif font that it looks like you've used. Could you please post 
the actual code you used to generate the picture?

I stand however by my previous statement that the only "significant 
differences" are those listed.

Bruce Sherwood

Stef Mientki wrote:
> hi Bruce,
> 
> Bruce Sherwood wrote:
>> The only significant differences that I know of between Visual 3 and 
>> Visual 5 are that the following have not (yet) been implemented in 
>> Visual 5: scene.cursor.visible, and right-button and middle-button 
>> mouse events. These are listed as known bugs in the statement of new 
>> features in the documentation for Visual 5.
> you don't know yet, how good I am in finding bugs ;-)
> here is subtle one, (VP5, winXP-sp2)
> look very carefully at the picture, it contains 2 bugs.
> The bug appears depending on the ratio of hor/ver size of the frame,
> and moving either the height or width slightly, you can get to see other 
> variations.
> 
> cheers,
> Stef
> 
> ------------------------------------------------------------------------
> 
> 
> ------------------------------------------------------------------------
> 
> ------------------------------------------------------------------------------
> Check out the new SourceForge.net Marketplace.
> It is the best place to buy or sell services for
> just about anything Open Source.
> http://p.sf.net/sfu/Xq1LFB
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> Visualpython-users mailing list
> Vis...@li...
> https://lists.sourceforge.net/lists/listinfo/visualpython-users

Re: [Visualpython-users] Text disappears after hiding the scene ...

[Stef M. <s.m...@ru...>]

hi Bruce,

Bruce Sherwood wrote:
> The only significant differences that I know of between Visual 3 and 
> Visual 5 are that the following have not (yet) been implemented in 
> Visual 5: scene.cursor.visible, and right-button and middle-button 
> mouse events. These are listed as known bugs in the statement of new 
> features in the documentation for Visual 5.
you don't know yet, how good I am in finding bugs ;-)
here is subtle one, (VP5, winXP-sp2)
look very carefully at the picture, it contains 2 bugs.
The bug appears depending on the ratio of hor/ver size of the frame,
and moving either the height or width slightly, you can get to see other 
variations.

cheers,
Stef

Re: [Visualpython-users] VP3-VP5, what's NewAxis ?

[Bruce S. <Bru...@nc...>]

See the example programs stars.py or gas.py in the Visual 5 version, 
which have been rewritten to work either with Numeric (Visual 3) or 
numpy (Visual 5). I don't know why numpy made some seemingly trivial 
changes such as NewAxis -> newaxis. Annoying. But it was essential to 
invoke numpy rather than Numeric in Visual 5 because Numeric is no 
longer supported.

In the Visual 5 documentation (accessible from the IDLE help menu), 
choose "Numpy module (arrays)" for documentation on numpy.

Bruce Sherwood

Stef Mientki wrote:
> hello,
> 
> A number of VP3-scripts uses, like this
> 
>     r = pos-pos[:,NewAxis] # all pairs of atom-to-atom vectors
>    
> 
> NewAxis isn't defined in VP5,
> and I can't find any information about NewAxis.
> 
> Anyone has a clue ?
> 
> thanks,
> Stef
> 
> ------------------------------------------------------------------------------
> Check out the new SourceForge.net Marketplace.
> It is the best place to buy or sell services for
> just about anything Open Source.
> http://p.sf.net/sfu/Xq1LFB
> _______________________________________________
> Visualpython-users mailing list
> Vis...@li...
> https://lists.sourceforge.net/lists/listinfo/visualpython-users

[Visualpython-users] VP3-VP5, what's NewAxis ?

[Stef M. <s.m...@ru...>]

hello,

A number of VP3-scripts uses, like this

    r = pos-pos[:,NewAxis] # all pairs of atom-to-atom vectors
   

NewAxis isn't defined in VP5,
and I can't find any information about NewAxis.

Anyone has a clue ?

thanks,
Stef

Re: [Visualpython-users] Text disappears after hiding the scene ...

[Bruce S. <Bru...@nc...>]

The only significant differences that I know of between Visual 3 and 
Visual 5 are that the following have not (yet) been implemented in 
Visual 5: scene.cursor.visible, and right-button and middle-button mouse 
events. These are listed as known bugs in the statement of new features 
in the documentation for Visual 5.

Bruce Sherwood

Stef Mientki wrote:
> thanks Bruce,
> 
> I didn't know that,
> and indeed it works like a charm.
> So now I can really test the differences between VP3 and VP5 ;-)
> I'll report my findings.
> 
> cheers,
> Stef
> 
> Bruce Sherwood wrote:
>> But "hide" IS supported. It's unfortunate that there was a 
>> scene.hide() that was undocumented (and not implemented in Visual 5), 
>> but it has always been the case that scene.visible = False has worked 
>> in all versions of Visual.
>>
>> Nor am I sure that I understand what is meant by "resize not allowed 
>> during visible". Do you mean setting scene.width and scene.height? 
>> That didn't work in Visual 3, either. The following resizing works in 
>> both Visual 3 and Visual 5:
>>
>> from visual import *
>> box()
>> scene.mouse.getclick()
>> scene.visible = False
>> scene.width = 800
>> scene.visible = True
>>
>> Bruce Sherwood
>>
>> Stef Mientki wrote:
>>> Bruce Sherwood wrote:
>>>> That's a very strange bug in VP3; I have no idea what is the cause. 
>>>> I note that creating a new label after making the window visible 
>>>> fails to show any text, though the box surrounding the (nonvisible) 
>>>> text is the appropriate width. If on the other hand no label is 
>>>> created before the window manipulations are carried out, a new label 
>>>> does show text. Very strange.
>>>>
>>>> The only workaround that I can see is to use VP5.
>>>>
>>> I was afraid to get that answer ;-)
>>> And yes, probably it's the best way to go,
>>> but then embedding of VPython isn't possible anymore ( hide not 
>>> supported, resize not allowed during visible)
>>> :-(
>>>
>>> thanks anyway,
>>> cheers,
>>> Stef
>>>> Bruce Sherwood
>>>>
>>>> Stef Mientki wrote:
>>>>> hello,
>>>>>
>>>>> the simple program below, hiding the scene for a moment,
>>>>> lets the text disappear in VP3 (VP5 works ok). (winXP-sp2)
>>>>> Is there a workaround ?
>>>>>
>>>>> thanks,
>>>>> Stef
>>>>>
>>>>>
>>>>> from visual import *
>>>>>
>>>>> label ( text = 'Click to show problem' )
>>>>>
>>>>> while True :
>>>>>   rate ( 50 )
>>>>>   if scene.mouse.clicked > 0 :
>>>>>     while scene.mouse.clicked > 0 :
>>>>>       scene.mouse.getclick()
>>>>>     scene.visible = False
>>>>>     scene.visible = True
>>>>>
>>>>>
>>>>> ------------------------------------------------------------------------------ 
>>>>>
>>>>> Check out the new SourceForge.net Marketplace.
>>>>> It is the best place to buy or sell services for
>>>>> just about anything Open Source.
>>>>> http://p.sf.net/sfu/Xq1LFB
>>>>> _______________________________________________
>>>>> Visualpython-users mailing list
>>>>> Vis...@li...
>>>>> https://lists.sourceforge.net/lists/listinfo/visualpython-users
>>> ------------------------------------------------------------------------------ 
>>>
>>> Check out the new SourceForge.net Marketplace.
>>> It is the best place to buy or sell services for
>>> just about anything Open Source.
>>> http://p.sf.net/sfu/Xq1LFB
>>> _______________________________________________
>>> Visualpython-users mailing list
>>> Vis...@li...
>>> https://lists.sourceforge.net/lists/listinfo/visualpython-users
>>
> 
> ------------------------------------------------------------------------------
> Check out the new SourceForge.net Marketplace.
> It is the best place to buy or sell services for
> just about anything Open Source.
> http://p.sf.net/sfu/Xq1LFB
> _______________________________________________
> Visualpython-users mailing list
> Vis...@li...
> https://lists.sourceforge.net/lists/listinfo/visualpython-users

Re: [Visualpython-users] Text disappears after hiding the scene ...

[Stef M. <s.m...@ru...>]

thanks Bruce,

I didn't know that,
and indeed it works like a charm.
So now I can really test the differences between VP3 and VP5 ;-)
I'll report my findings.

cheers,
Stef

Bruce Sherwood wrote:
> But "hide" IS supported. It's unfortunate that there was a 
> scene.hide() that was undocumented (and not implemented in Visual 5), 
> but it has always been the case that scene.visible = False has worked 
> in all versions of Visual.
>
> Nor am I sure that I understand what is meant by "resize not allowed 
> during visible". Do you mean setting scene.width and scene.height? 
> That didn't work in Visual 3, either. The following resizing works in 
> both Visual 3 and Visual 5:
>
> from visual import *
> box()
> scene.mouse.getclick()
> scene.visible = False
> scene.width = 800
> scene.visible = True
>
> Bruce Sherwood
>
> Stef Mientki wrote:
>>
>> Bruce Sherwood wrote:
>>> That's a very strange bug in VP3; I have no idea what is the cause. 
>>> I note that creating a new label after making the window visible 
>>> fails to show any text, though the box surrounding the (nonvisible) 
>>> text is the appropriate width. If on the other hand no label is 
>>> created before the window manipulations are carried out, a new label 
>>> does show text. Very strange.
>>>
>>> The only workaround that I can see is to use VP5.
>>>
>> I was afraid to get that answer ;-)
>> And yes, probably it's the best way to go,
>> but then embedding of VPython isn't possible anymore ( hide not 
>> supported, resize not allowed during visible)
>> :-(
>>
>> thanks anyway,
>> cheers,
>> Stef
>>> Bruce Sherwood
>>>
>>> Stef Mientki wrote:
>>>> hello,
>>>>
>>>> the simple program below, hiding the scene for a moment,
>>>> lets the text disappear in VP3 (VP5 works ok). (winXP-sp2)
>>>> Is there a workaround ?
>>>>
>>>> thanks,
>>>> Stef
>>>>
>>>>
>>>> from visual import *
>>>>
>>>> label ( text = 'Click to show problem' )
>>>>
>>>> while True :
>>>>   rate ( 50 )
>>>>   if scene.mouse.clicked > 0 :
>>>>     while scene.mouse.clicked > 0 :
>>>>       scene.mouse.getclick()
>>>>     scene.visible = False
>>>>     scene.visible = True
>>>>
>>>>
>>>> ------------------------------------------------------------------------------ 
>>>>
>>>> Check out the new SourceForge.net Marketplace.
>>>> It is the best place to buy or sell services for
>>>> just about anything Open Source.
>>>> http://p.sf.net/sfu/Xq1LFB
>>>> _______________________________________________
>>>> Visualpython-users mailing list
>>>> Vis...@li...
>>>> https://lists.sourceforge.net/lists/listinfo/visualpython-users
>>>
>>
>> ------------------------------------------------------------------------------ 
>>
>> Check out the new SourceForge.net Marketplace.
>> It is the best place to buy or sell services for
>> just about anything Open Source.
>> http://p.sf.net/sfu/Xq1LFB
>> _______________________________________________
>> Visualpython-users mailing list
>> Vis...@li...
>> https://lists.sourceforge.net/lists/listinfo/visualpython-users
>
>

Re: [Visualpython-users] Mac IDLE fix

[Bruce S. <Bru...@nc...>]

I've verified that the Visual 5.01 works with the latest MacPython 
2.5.4, and I've changed the Visual 5 download pages for Mac and Windows 
to reference the recent 2.5.4 release instead of 2.5.2.

However, when I install MacPython 2.5.4, overwriting 2.5.2 but leaving 
the Visual 5.01 files in place, Visual hangs (like the problem sometimes 
seen with Visual 5.01 when running for the first time on a Mac). 
Reinstalling Visual 5.01 cures the problem. Strange.

Bruce Sherwood

Joe Heafner wrote:
>     Date: Wed, 07 Jan 2009 13:26:09 -0500
>     From: Bruce Sherwood <Bru...@nc...
>     <mailto:Bru...@nc...>>
>     Subject: [Visualpython-users] Mac IDLE fix
>     To: vpusers <vis...@li...
>     <mailto:vis...@li...>>
>     Message-ID: <496...@nc...
>     <mailto:496...@nc...>>
>     Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> 
>     The version of IDLE that comes with Python on the Mac is defective. In
>     particular, it does not offer a menu option to configure IDLE. If you
>     would like to have a larger font size, to have your file automatically
>     saved when you run (if you changed it), the ability to be able to make a
>     change and re-run your program without being interrupted by being asked
>     whether to save the file, and to have the Visual help available on the
>     IDLE help menu, download the file idlerc.zip and unzip it in your home
>     folder (e.g. /Users/tom). Depending on your Finder settings, you may not
>     see the resulting folder ".idlerc", but it will be used by IDLE (in a
>     Terminal you can see it if you execute "ls -a").
> 
> 
> Seems to work fine for me. I've installed the new Mac VPython on all 12 
> of my MacBooks at work and we'll start using it tomorrow. Will applying 
> MacPython 2.5.x updates break Visual? For some time, I was under the 
> impression that my VPython installed via Fink was using Python 2.6 but I 
> was mistaken. Now I've no idea what package caused Python 2.6 to be 
> installed under Fink, but I can't remove it because something else 
> depends on it. Funny...
> 
> Joe
> 
> 
> ------------------------------------------------------------------------
> 
> ------------------------------------------------------------------------------
> Check out the new SourceForge.net Marketplace.
> It is the best place to buy or sell services for
> just about anything Open Source.
> http://p.sf.net/sfu/Xq1LFB
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> Visualpython-users mailing list
> Vis...@li...
> https://lists.sourceforge.net/lists/listinfo/visualpython-users

Re: [Visualpython-users] Text disappears after hiding the scene ...

[Bruce S. <Bru...@nc...>]

But "hide" IS supported. It's unfortunate that there was a scene.hide() 
that was undocumented (and not implemented in Visual 5), but it has 
always been the case that scene.visible = False has worked in all 
versions of Visual.

Nor am I sure that I understand what is meant by "resize not allowed 
during visible". Do you mean setting scene.width and scene.height? That 
didn't work in Visual 3, either. The following resizing works in both 
Visual 3 and Visual 5:

from visual import *
box()
scene.mouse.getclick()
scene.visible = False
scene.width = 800
scene.visible = True

Bruce Sherwood

Stef Mientki wrote:
> 
> Bruce Sherwood wrote:
>> That's a very strange bug in VP3; I have no idea what is the cause. I 
>> note that creating a new label after making the window visible fails 
>> to show any text, though the box surrounding the (nonvisible) text is 
>> the appropriate width. If on the other hand no label is created before 
>> the window manipulations are carried out, a new label does show text. 
>> Very strange.
>>
>> The only workaround that I can see is to use VP5.
>>
> I was afraid to get that answer ;-)
> And yes, probably it's the best way to go,
> but then embedding of VPython isn't possible anymore ( hide not 
> supported, resize not allowed during visible)
> :-(
> 
> thanks anyway,
> cheers,
> Stef
>> Bruce Sherwood
>>
>> Stef Mientki wrote:
>>> hello,
>>>
>>> the simple program below, hiding the scene for a moment,
>>> lets the text disappear in VP3 (VP5 works ok). (winXP-sp2)
>>> Is there a workaround ?
>>>
>>> thanks,
>>> Stef
>>>
>>>
>>> from visual import *
>>>
>>> label ( text = 'Click to show problem' )
>>>
>>> while True :
>>>   rate ( 50 )
>>>   if scene.mouse.clicked > 0 :
>>>     while scene.mouse.clicked > 0 :
>>>       scene.mouse.getclick()
>>>     scene.visible = False
>>>     scene.visible = True
>>>
>>>
>>> ------------------------------------------------------------------------------ 
>>>
>>> Check out the new SourceForge.net Marketplace.
>>> It is the best place to buy or sell services for
>>> just about anything Open Source.
>>> http://p.sf.net/sfu/Xq1LFB
>>> _______________________________________________
>>> Visualpython-users mailing list
>>> Vis...@li...
>>> https://lists.sourceforge.net/lists/listinfo/visualpython-users
>>
> 
> ------------------------------------------------------------------------------
> Check out the new SourceForge.net Marketplace.
> It is the best place to buy or sell services for
> just about anything Open Source.
> http://p.sf.net/sfu/Xq1LFB
> _______________________________________________
> Visualpython-users mailing list
> Vis...@li...
> https://lists.sourceforge.net/lists/listinfo/visualpython-users

Re: [Visualpython-users] Text disappears after hiding the scene ...

[Stef M. <s.m...@ru...>]

Bruce Sherwood wrote:
> That's a very strange bug in VP3; I have no idea what is the cause. I 
> note that creating a new label after making the window visible fails 
> to show any text, though the box surrounding the (nonvisible) text is 
> the appropriate width. If on the other hand no label is created before 
> the window manipulations are carried out, a new label does show text. 
> Very strange.
>
> The only workaround that I can see is to use VP5.
>
I was afraid to get that answer ;-)
And yes, probably it's the best way to go,
but then embedding of VPython isn't possible anymore ( hide not 
supported, resize not allowed during visible)
:-(

thanks anyway,
cheers,
Stef
> Bruce Sherwood
>
> Stef Mientki wrote:
>> hello,
>>
>> the simple program below, hiding the scene for a moment,
>> lets the text disappear in VP3 (VP5 works ok). (winXP-sp2)
>> Is there a workaround ?
>>
>> thanks,
>> Stef
>>
>>
>> from visual import *
>>
>> label ( text = 'Click to show problem' )
>>
>> while True :
>>   rate ( 50 )
>>   if scene.mouse.clicked > 0 :
>>     while scene.mouse.clicked > 0 :
>>       scene.mouse.getclick()
>>     scene.visible = False
>>     scene.visible = True
>>
>>
>> ------------------------------------------------------------------------------ 
>>
>> Check out the new SourceForge.net Marketplace.
>> It is the best place to buy or sell services for
>> just about anything Open Source.
>> http://p.sf.net/sfu/Xq1LFB
>> _______________________________________________
>> Visualpython-users mailing list
>> Vis...@li...
>> https://lists.sourceforge.net/lists/listinfo/visualpython-users
>
>

Re: [Visualpython-users] Mac IDLE fix

[Scott D. D. <Sco...@Ac...>]

Bruce Sherwood wrote:
> Mouse problems I've seen on the Mac include the scrollbar "sticking" 
> (failing to slide), and clicking into text only to have the insertion 
> point be somewhere else than where you clicked. David Scherer found that 
> he could (temporarily?) fix such problems by clicking in the title bar 
> of the IDLE window.

To get evidence of this -- start idle from a terminal window
with a "python25 -m idlelib.idle"  where python25 is the path to your
python executable.  You get output on stderr each time the mouse drops
a line of mouse positioning.

--Scott David Daniels
Sco...@Ac...

Re: [Visualpython-users] Mac IDLE fix

[Joe H. <hea...@gm...>]

>
> Date: Wed, 07 Jan 2009 13:26:09 -0500
> From: Bruce Sherwood <Bru...@nc...>
> Subject: [Visualpython-users] Mac IDLE fix
> To: vpusers <vis...@li...>
> Message-ID: <496...@nc...>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> The version of IDLE that comes with Python on the Mac is defective. In
> particular, it does not offer a menu option to configure IDLE. If you
> would like to have a larger font size, to have your file automatically
> saved when you run (if you changed it), the ability to be able to make a
> change and re-run your program without being interrupted by being asked
> whether to save the file, and to have the Visual help available on the
> IDLE help menu, download the file idlerc.zip and unzip it in your home
> folder (e.g. /Users/tom). Depending on your Finder settings, you may not
> see the resulting folder ".idlerc", but it will be used by IDLE (in a
> Terminal you can see it if you execute "ls -a").


Seems to work fine for me. I've installed the new Mac VPython on all 12 of
my MacBooks at work and we'll start using it tomorrow. Will applying
MacPython 2.5.x updates break Visual? For some time, I was under the
impression that my VPython installed via Fink was using Python 2.6 but I was
mistaken. Now I've no idea what package caused Python 2.6 to be installed
under Fink, but I can't remove it because something else depends on it.
Funny...

Joe

Re: [Visualpython-users] Mac IDLE fix

[Bruce S. <Bru...@nc...>]

Mouse problems I've seen on the Mac include the scrollbar "sticking" 
(failing to slide), and clicking into text only to have the insertion 
point be somewhere else than where you clicked. David Scherer found that 
he could (temporarily?) fix such problems by clicking in the title bar 
of the IDLE window.

I see that there is now a Python 2.5.4 for the Mac, but its IDLE is 
still broken. For instance, there still is no menu option to configure IDLE.

Bruce Sherwood

James Mueller wrote:
> Bruce,
>     I have both the MacPython and Enthought versions of 2.5.2 on my 
> macbook pro.  While the IDLE in MacPython is broken as you say, the one 
> shipped with the Enthought distribution appears to be fine.  Now they 
> both claim to be IDLE 1.2.2, and this seemed confusing, so I looked into 
> the Enthought distribution a little more.  I had previous versions of it 
> so I checked IDLE in each of them
> 
> EPD 2.5.2001 released July 2008 - IDLE missing configure menu
> EPD with Py2.5 4.0.30002 released Oct 2008 - IDLE missing configure menu
> EPD Py2.5 4.1.30101 released Dec 2008 - IDLE has configure menu
> 
> I see that you were complaining about idle on the idle-dev mailing list 
> back in November, but I don't see any note to indicate a fix going in, 
> so I am still confused as to why the Enthought IDLE seems to work, but 
> the MacPython one is still broken.
> 
> I also haven't seen any mouse problems, but that is probably because I 
> am just not trying the right thing to trigger them.
> 
> -Jim
> 
> 
> On Jan 7, 2009, at 1:26 PM, Bruce Sherwood wrote:
> 
>> This has been added to the Visual 5 Mac download page:
>>
>> The version of IDLE that comes with Python on the Mac is defective. In
>> particular, it does not offer a menu option to configure IDLE. If you
>> would like to have a larger font size, to have your file automatically
>> saved when you run (if you changed it), the ability to be able to make a
>> change and re-run your program without being interrupted by being asked
>> whether to save the file, and to have the Visual help available on the
>> IDLE help menu, download the file idlerc.zip and unzip it in your home
>> folder (e.g. /Users/tom). Depending on your Finder settings, you may not
>> see the resulting folder ".idlerc", but it will be used by IDLE (in a
>> Terminal you can see it if you execute "ls -a").
>>
>> ------------------------------------------------------------------------------ 
>>
>> Check out the new SourceForge.net Marketplace.
>> It is the best place to buy or sell services for
>> just about anything Open Source.
>> http://p.sf.net/sfu/Xq1LFB
>> _______________________________________________
>> Visualpython-users mailing list
>> Vis...@li...
>> https://lists.sourceforge.net/lists/listinfo/visualpython-users
> 

Re: [Visualpython-users] Mac IDLE fix

[James M. <mu...@pi...>]

Bruce,
	I have both the MacPython and Enthought versions of 2.5.2 on my  
macbook pro.  While the IDLE in MacPython is broken as you say, the  
one shipped with the Enthought distribution appears to be fine.  Now  
they both claim to be IDLE 1.2.2, and this seemed confusing, so I  
looked into the Enthought distribution a little more.  I had previous  
versions of it so I checked IDLE in each of them

EPD 2.5.2001 released July 2008 - IDLE missing configure menu
EPD with Py2.5 4.0.30002 released Oct 2008 - IDLE missing configure menu
EPD Py2.5 4.1.30101 released Dec 2008 - IDLE has configure menu

I see that you were complaining about idle on the idle-dev mailing  
list back in November, but I don't see any note to indicate a fix  
going in, so I am still confused as to why the Enthought IDLE seems to  
work, but the MacPython one is still broken.

I also haven't seen any mouse problems, but that is probably because I  
am just not trying the right thing to trigger them.

-Jim


On Jan 7, 2009, at 1:26 PM, Bruce Sherwood wrote:

> This has been added to the Visual 5 Mac download page:
>
> The version of IDLE that comes with Python on the Mac is defective. In
> particular, it does not offer a menu option to configure IDLE. If you
> would like to have a larger font size, to have your file automatically
> saved when you run (if you changed it), the ability to be able to  
> make a
> change and re-run your program without being interrupted by being  
> asked
> whether to save the file, and to have the Visual help available on the
> IDLE help menu, download the file idlerc.zip and unzip it in your home
> folder (e.g. /Users/tom). Depending on your Finder settings, you may  
> not
> see the resulting folder ".idlerc", but it will be used by IDLE (in a
> Terminal you can see it if you execute "ls -a").
>
> ------------------------------------------------------------------------------
> Check out the new SourceForge.net Marketplace.
> It is the best place to buy or sell services for
> just about anything Open Source.
> http://p.sf.net/sfu/Xq1LFB
> _______________________________________________
> Visualpython-users mailing list
> Vis...@li...
> https://lists.sourceforge.net/lists/listinfo/visualpython-users

Re: [Visualpython-users] Text disappears after hiding the scene ...

[Bruce S. <Bru...@nc...>]

That's a very strange bug in VP3; I have no idea what is the cause. I 
note that creating a new label after making the window visible fails to 
show any text, though the box surrounding the (nonvisible) text is the 
appropriate width. If on the other hand no label is created before the 
window manipulations are carried out, a new label does show text. Very 
strange.

The only workaround that I can see is to use VP5.

Bruce Sherwood

Stef Mientki wrote:
> hello,
> 
> the simple program below, hiding the scene for a moment,
> lets the text disappear in VP3 (VP5 works ok). (winXP-sp2)
> Is there a workaround ?
> 
> thanks,
> Stef
> 
> 
> from visual import *
> 
> label ( text = 'Click to show problem' )
> 
> while True :
>   rate ( 50 )
>   if scene.mouse.clicked > 0 :
>     while scene.mouse.clicked > 0 :
>       scene.mouse.getclick()
>     scene.visible = False
>     scene.visible = True
> 
> 
> ------------------------------------------------------------------------------
> Check out the new SourceForge.net Marketplace.
> It is the best place to buy or sell services for
> just about anything Open Source.
> http://p.sf.net/sfu/Xq1LFB
> _______________________________________________
> Visualpython-users mailing list
> Vis...@li...
> https://lists.sourceforge.net/lists/listinfo/visualpython-users

Re: [Visualpython-users] Funny behavior Visual 5.01 on Fedora 10

[Bruce S. <Bru...@nc...>]

The message about shader program is normal. From the documentation:

"Materials will work with graphics cards that support Pixel Shader 3.0 
("PS 3.0"). For details, see
http://en.wikipedia.org/wiki/Pixel_shader#Hardware. Some materials may 
work with graphics cards that support PS 2.0, but other materials may 
need to be manually disabled; see instructions in the site-settings.py 
module in the Visual package in your site-packages folder. If the 
graphics hardware does not support pixel shaders, the material property 
is ignored. If you think you should be able to use materials but have 
trouble with their display or performance, we highly recommend upgrading 
your video card drivers to the latest version."

In other words, you can suppress the shader program message by changing 
site-settings.py.

Mouse problems in IDLE is in principle not within the province of the 
VPython project, nor have I seen problems with IDLE on Ubuntu Linux. 
However, there are serious problems with IDLE on the Mac, including 
mouse problems, and David Scherer is working on an alternative version 
of IDLE to address those issues. Conceivably this would address problems 
you're seeing on Fedora; I don't know. Due to personal committments, 
it's not clear when Scherer might be able to release an alternative to 
the current IDLE. (Historical note: In 2000, while building VPython, 
Scherer made major revisions to the relatively primitive IDLE that then 
existed. Later others continued his work. This year, while again working 
on VPython, Scherer found that various aspects of IDLE now needed 
attention.)

Bruce Sherwood

Vineyard, Michael F. wrote:
> Hi Folks,
> 
> I have built Visual 5.01 on Fedora 10. The examples and some of my earlier programs seem
> to run ok, but I see some funny behavior. I get the following warning in the python shell
> when I run a module:
> 
> Vpython WARNING: error in shader program:
> linking with uncompiled shader
> 
> Also, the mouse buttons don't function properly in the idle windows.
> 
> Does anyone have an idea of how to fix these?
> 
> Thanks,
> 
> Mike Vineyard
> 
> ------------------------------------------------------------------------------
> Check out the new SourceForge.net Marketplace.
> It is the best place to buy or sell services for
> just about anything Open Source.
> http://p.sf.net/sfu/Xq1LFB
> _______________________________________________
> Visualpython-users mailing list
> Vis...@li...
> https://lists.sourceforge.net/lists/listinfo/visualpython-users

[Visualpython-users] Funny behavior Visual 5.01 on Fedora 10

[Vineyard, M. F. <vin...@un...>]

Hi Folks,

I have built Visual 5.01 on Fedora 10. The examples and some of my earlier programs seem
to run ok, but I see some funny behavior. I get the following warning in the python shell
when I run a module:

Vpython WARNING: error in shader program:
linking with uncompiled shader

Also, the mouse buttons don't function properly in the idle windows.

Does anyone have an idea of how to fix these?

Thanks,

Mike Vineyard

[Visualpython-users] Mac IDLE fix

[Bruce S. <Bru...@nc...>]

This has been added to the Visual 5 Mac download page:

The version of IDLE that comes with Python on the Mac is defective. In 
particular, it does not offer a menu option to configure IDLE. If you 
would like to have a larger font size, to have your file automatically 
saved when you run (if you changed it), the ability to be able to make a 
change and re-run your program without being interrupted by being asked 
whether to save the file, and to have the Visual help available on the 
IDLE help menu, download the file idlerc.zip and unzip it in your home 
folder (e.g. /Users/tom). Depending on your Finder settings, you may not 
see the resulting folder ".idlerc", but it will be used by IDLE (in a 
Terminal you can see it if you execute "ls -a").

[Visualpython-users] Text disappears after hiding the scene ...

[Stef M. <s.m...@ru...>]

hello,

the simple program below, hiding the scene for a moment,
lets the text disappear in VP3 (VP5 works ok). (winXP-sp2)
Is there a workaround ?

thanks,
Stef


from visual import *

label ( text = 'Click to show problem' )

while True :
  rate ( 50 )
  if scene.mouse.clicked > 0 :
    while scene.mouse.clicked > 0 :
      scene.mouse.getclick()
    scene.visible = False
    scene.visible = True

Re: [Visualpython-users] error in instalation visual5

[Bruce S. <Bru...@nc...>]

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
  <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
Indications in the build.log file are that no Boost libraries have been
installed on your machine. See detailed discussion in the file
INSTALL.txt.<br>
<br>
Bruce Sherwood<br>
<br>
German Andres Gaviria Martinez wrote:
<blockquote
 cite="mid:fcc...@ma..."
 type="cite">Hello&nbsp; I have the following error during installation<br>
  <br>
  <br>
  <br>
<a class="moz-txt-link-abbreviated" href="mailto:erman@german-laptop:~/Escritorio/visual-5.01_candidate$">erman@german-laptop:~/Escritorio/visual-5.01_candidate$</a> sudo make<br>
Making all in site-packages/visual<br>
make[1]: se ingresa al directorio
`/home/german/Escritorio/visual-5.01_candidate/site-packages/visual'<br>
make[1]: No se hace nada para `all'.<br>
make[1]: se sale del directorio
`/home/german/Escritorio/visual-5.01_candidate/site-packages/visual'<br>
Making all in src<br>
make[1]: se ingresa al directorio
`/home/german/Escritorio/visual-5.01_candidate/src'<br>
Compiling ./core/util/atomic_queue.cpp ...<br>
make[1]: *** [atomic_queue.lo] Error 1<br>
make[1]: se sale del directorio
`/home/german/Escritorio/visual-5.01_candidate/src'<br>
make: *** [all-recursive] Error 1<br>
  <br>
  <pre wrap=""><pre wrap=""><pre wrap="">
<hr size="4" width="90%">
------------------------------------------------------------------------------
</pre><pre wrap="">
<hr size="4" width="90%">
_______________________________________________
Visualpython-users mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Vis...@li...">Vis...@li...</a>
<a class="moz-txt-link-freetext" href="https://lists.sourceforge.net/lists/listinfo/visualpython-users">https://lists.sourceforge.net/lists/listinfo/visualpython-users</a>
</pre></pre></pre>
</blockquote>
</body>
</html>

[Visualpython-users] error in instalation visual5

[German A. G. M. <ger...@gm...>]

Hello  I have the following error during installation



erman@german-laptop:~/Escritorio/visual-5.01_candidate$ sudo make
Making all in site-packages/visual
make[1]: se ingresa al directorio
`/home/german/Escritorio/visual-5.01_candidate/site-packages/visual'
make[1]: No se hace nada para `all'.
make[1]: se sale del directorio
`/home/german/Escritorio/visual-5.01_candidate/site-packages/visual'
Making all in src
make[1]: se ingresa al directorio
`/home/german/Escritorio/visual-5.01_candidate/src'
Compiling ./core/util/atomic_queue.cpp ...
make[1]: *** [atomic_queue.lo] Error 1
make[1]: se sale del directorio
`/home/german/Escritorio/visual-5.01_candidate/src'
make: *** [all-recursive] Error 1

[Visualpython-users] Jython

[Mr G. K. <s40...@st...>]

Does Vpython work with Jython?

[Visualpython-users] Mac Carbon implementation

[Bruce S. <Bru...@nc...>]

Several people have privately expressed concern that the native-mode 
Visual 5 implementation on the Mac is based on Carbon rather than Cocoa. 
We developers are concerned, too. The problem is that Apple has begun 
the process of dropping support for Carbon, a decision that has caused a 
lot of anguish among many developers.

Unfortunately, it seems to be extremely difficult (impossible?) to base 
Visual on Cocoa, for highly technical reasons having to do with who is 
the primary thread. Some months ago I posted a question about this to 
the cocoa-dev mailing list. The first response flamed at me for being an 
idiot for wanting to continue to use Carbon. The second response said 
roughly, "No, the poor guy has a serious problem. Years ago we faced a 
similar, daunting problem trying to get Java working in the Mac 
environment."

At the moment we seem to have no option for responding to the strong 
need for a native-mode Mac version but to base it on Carbon. Maybe 
someone deeply knowledgeable in the Mac will step forward eventually 
with a Cocoa solution, which would be great.

There is a somewhat related problem with Visual 5 on the Mac in that it 
is no longer possible to call Tcl functions, even in the Carbon environment.

Bruce Sherwood

Re: [Visualpython-users] Best way to position fixed text ?

[Bruce S. <Bru...@nc...>]

In Visual 5 you can read the window width and height (but to change them 
you first have to make the scene invisible):

box()
scene.mouse.getclick()
print scene.width, scene.height

It is true that you can't read these data in Visual 3.

More generally, it's fair to say that currently VPython doesn't provide 
good mechanisms for creating graphical user interfaces. It's good for 
navigable 3D animations, but not for a variety of other uses.

Bruce Sherwood

Stef Mientki wrote:
> hello,
>
> The label item has nice properties to position the text absolute in a frame,
> through xoffset / yoffset,
> so it's not affected by zooming.
>
> But it's still moves when the window is resized.
>
> Now the windows parameters width and height are not available, when the 
> window is shown.
> Therefor it doesn't seem possible to position the text in the upper left 
> corner and keep it there,
> unless you place the center in the upper left corner.
>
> How are others position fixed texts ?
> (btw most scripts I've seen now, doesn't use xoffset / yoffset, why ? )
>
> thanks,
> Stef
>
>
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