Matplotlib - 3D Graph only works once
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I'm working on the diffusion equation for a length of L and want to produce a 3D plot of how the solution over the length changes with time so I have an array of values stored for each time step as a matrix just called matrix2 - x and times are the arrays for the values along the length and of all the time steps.
fig = plt.figure()
ax = fig.gca(projection='3d')
x,times=np.meshgrid(x,times)
ax.plot_surface(x,times,matrix2,antialiased=False);
plt.show()
Now if I run this code, I get the 3D plot I would expect out. If I then try and run the code a second time though either for the exact same values or after running the diffusion for longer and changing times and matrix 2, I don't get an output, there is usually a MemoryError and everything on the computer slows down. Is there something I should be doing which allows me to produce more than one of these sorts of plots?Image of error on running the code for a second time
python matplotlib multidimensional-array
asked Nov 15 at 20:06
Ben Collister
11
add a comment |
up vote
0
down vote
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I'm working on the diffusion equation for a length of L and want to produce a 3D plot of how the solution over the length changes with time so I have an array of values stored for each time step as a matrix just called matrix2 - x and times are the arrays for the values along the length and of all the time steps.
fig = plt.figure()
ax = fig.gca(projection='3d')
x,times=np.meshgrid(x,times)
ax.plot_surface(x,times,matrix2,antialiased=False);
plt.show()
Now if I run this code, I get the 3D plot I would expect out. If I then try and run the code a second time though either for the exact same values or after running the diffusion for longer and changing times and matrix 2, I don't get an output, there is usually a MemoryError and everything on the computer slows down. Is there something I should be doing which allows me to produce more than one of these sorts of plots?Image of error on running the code for a second time
python matplotlib multidimensional-array
asked Nov 15 at 20:06
Ben Collister
11
1
Could you copy a full error?
– PlikePotato
Nov 15 at 20:10
@PlikePotato I've added an image to the main post now of the error - running the code a single time produces the 3D plot I expect but rerunning the code fails - if I comment out the meshgrid line on the second run through, it works again so I don't know if that gives a clue as to why this is happening?
– Ben Collister
Nov 16 at 16:38
Rename yourxandtimesvariables. Either for every instance in the script before this line or after.
– Paul Brodersen
Nov 19 at 9:10
Thanks for the help @PaulBrodersen
– Ben Collister
Nov 21 at 11:31
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I'm working on the diffusion equation for a length of L and want to produce a 3D plot of how the solution over the length changes with time so I have an array of values stored for each time step as a matrix just called matrix2 - x and times are the arrays for the values along the length and of all the time steps.
fig = plt.figure()
ax = fig.gca(projection='3d')
x,times=np.meshgrid(x,times)
ax.plot_surface(x,times,matrix2,antialiased=False);
plt.show()
Now if I run this code, I get the 3D plot I would expect out. If I then try and run the code a second time though either for the exact same values or after running the diffusion for longer and changing times and matrix 2, I don't get an output, there is usually a MemoryError and everything on the computer slows down. Is there something I should be doing which allows me to produce more than one of these sorts of plots?Image of error on running the code for a second time
python matplotlib multidimensional-array
asked Nov 15 at 20:06
Ben Collister
11
I'm working on the diffusion equation for a length of L and want to produce a 3D plot of how the solution over the length changes with time so I have an array of values stored for each time step as a matrix just called matrix2 - x and times are the arrays for the values along the length and of all the time steps.
fig = plt.figure()
ax = fig.gca(projection='3d')
x,times=np.meshgrid(x,times)
ax.plot_surface(x,times,matrix2,antialiased=False);
plt.show()
Now if I run this code, I get the 3D plot I would expect out. If I then try and run the code a second time though either for the exact same values or after running the diffusion for longer and changing times and matrix 2, I don't get an output, there is usually a MemoryError and everything on the computer slows down. Is there something I should be doing which allows me to produce more than one of these sorts of plots?Image of error on running the code for a second time
python matplotlib multidimensional-array
python matplotlib multidimensional-array
asked Nov 15 at 20:06
Ben Collister
11
asked Nov 15 at 20:06
Ben Collister
11
edited Nov 16 at 16:36
asked Nov 15 at 20:06
Ben Collister
11
asked Nov 15 at 20:06
Ben Collister
11
asked Nov 15 at 20:06
Ben Collister
11
11
1
Could you copy a full error?
– PlikePotato
Nov 15 at 20:10
@PlikePotato I've added an image to the main post now of the error - running the code a single time produces the 3D plot I expect but rerunning the code fails - if I comment out the meshgrid line on the second run through, it works again so I don't know if that gives a clue as to why this is happening?
– Ben Collister
Nov 16 at 16:38
Rename yourxandtimesvariables. Either for every instance in the script before this line or after.
– Paul Brodersen
Nov 19 at 9:10
Thanks for the help @PaulBrodersen
– Ben Collister
Nov 21 at 11:31
add a comment |
1
Could you copy a full error?
– PlikePotato
Nov 15 at 20:10
@PlikePotato I've added an image to the main post now of the error - running the code a single time produces the 3D plot I expect but rerunning the code fails - if I comment out the meshgrid line on the second run through, it works again so I don't know if that gives a clue as to why this is happening?
– Ben Collister
Nov 16 at 16:38
Rename yourxandtimesvariables. Either for every instance in the script before this line or after.
– Paul Brodersen
Nov 19 at 9:10
Thanks for the help @PaulBrodersen
– Ben Collister
Nov 21 at 11:31
1
1
Could you copy a full error?
– PlikePotato
Nov 15 at 20:10
Could you copy a full error?
– PlikePotato
Nov 15 at 20:10
@PlikePotato I've added an image to the main post now of the error - running the code a single time produces the 3D plot I expect but rerunning the code fails - if I comment out the meshgrid line on the second run through, it works again so I don't know if that gives a clue as to why this is happening?
– Ben Collister
Nov 16 at 16:38
@PlikePotato I've added an image to the main post now of the error - running the code a single time produces the 3D plot I expect but rerunning the code fails - if I comment out the meshgrid line on the second run through, it works again so I don't know if that gives a clue as to why this is happening?
– Ben Collister
Nov 16 at 16:38
Rename your
x and times variables. Either for every instance in the script before this line or after.– Paul Brodersen
Nov 19 at 9:10
Rename your
x and times variables. Either for every instance in the script before this line or after.– Paul Brodersen
Nov 19 at 9:10
Thanks for the help @PaulBrodersen
– Ben Collister
Nov 21 at 11:31
Thanks for the help @PaulBrodersen
– Ben Collister
Nov 21 at 11:31
add a comment |
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1
Could you copy a full error?
– PlikePotato
Nov 15 at 20:10
@PlikePotato I've added an image to the main post now of the error - running the code a single time produces the 3D plot I expect but rerunning the code fails - if I comment out the meshgrid line on the second run through, it works again so I don't know if that gives a clue as to why this is happening?
– Ben Collister
Nov 16 at 16:38
Rename your
xandtimesvariables. Either for every instance in the script before this line or after.– Paul Brodersen
Nov 19 at 9:10
Thanks for the help @PaulBrodersen
– Ben Collister
Nov 21 at 11:31