k-Wave

1. kcox
   

   Member
   Joined: May '17
   Posts: 10

   Trying to run one of the examples in Octave. Added the k-wave folder to my path using addpath(genpath('D:/Code/K-Wave')), so I am not sure where the functions are failing.

   Posted 7 years ago #

2. Bradley Treeby
   

   Developer
   Joined: Mar '10
   Posts: 1,643

   Hi kcox,

   I haven't tried k-Wave with Octave for some time. If you use addpath('D:/Code/K-Wave') and run the example, could you post the whole error stack? What OS, Octave, and k-Wave version are you using?

   Brad.

   Posted 7 years ago #

3. kcox
   

   Member
   Joined: May '17
   Posts: 10

   Hey Brad,

   I switched over to MATLAB and this problem stopped occurring. However, now I am having a bunch of problems with kspaceFirstOrder3D(). It appears that there was a change in dependency for some functions, or just a lack of some functions defined. I went into the function and tried to hard-code some missing things, but the further I get, the more errors that occur. The primary error is
   'Undefined function or variable 'use_sg'.' There is also an error occurring with use_kspace, plot_layout, and plot_sim. I am using MATLAB R2015b with the most recent K-wave on Windows 10.

   Posted 7 years ago #

4. Bradley Treeby
   

   Developer
   Joined: Mar '10
   Posts: 1,643

   Hi kcox,

   Something definitely isn't correct, as k-Wave should work straight out the box. Can you remove your current modified version from the path, and then download and add a clean version of k-Wave to the path (using addpath without genpath). Then try to run one of the included examples, and post the whole error stack.

   Brad.

   Posted 7 years ago #

5. kcox
   

   Member
   Joined: May '17
   Posts: 10

   Brad,

   Don't know how my original download got so corrupted, but re-downloading seems to have done the trick! Sorry about that, and thank you for your help!

   Kailee

   Posted 7 years ago #

6. Raab
   

   Member
   Joined: Dec '17
   Posts: 1

   Hi Brad,

   ran into the same problem. I would be interested to get it running in Octave.
   Here is the error message.

   Running k-Wave elastic simulation...
   start time: 11-Dec-2017 12:32:07
   reference sound speed: 2000m/s
   error: invalid conversion from lazy_index to uint16

   I'm running Octave 4.2.1, k-wave 1.2 on Linux Mint 17.3.

   Best regards,

   Tobias

   Posted 7 years ago #

7. toosonix
   

   Member
   Joined: Jan '18
   Posts: 1

   Have the same trouble as above. Any solutions....
   Thank you in advance,
   Tomasz

   Posted 6 years ago #

8. Bradley Treeby
   

   Developer
   Joined: Mar '10
   Posts: 1,643

   Is there a more detailed error stack, for example, the particular function or line of code that crashes?

   Posted 6 years ago #

9. MCube78
   

   Member
   Joined: Oct '18
   Posts: 1

   Same problem (in Octave). Any solution to "invalid conversion from lazy_index to uint16"?
   cheers

   Posted 6 years ago #

10. jbishop
    

    Member
    Joined: Oct '18
    Posts: 5

    I saw this error; new to octave and don't know why this is the answer, but for example

    kspaceFirstOrder_inputChecking.m
    1526 eval(['sensor_mask_index = ' index_data_type '(sensor_mask_index);']);

    can be edited to

    kspaceFirstOrder_inputChecking.m
    1526 eval(['sensor_mask_index = ' index_data_type '(sensor_mask_index(:));']);

    and it seems to avoid this error

    Posted 6 years ago #

11. Bradley Treeby
    

    Developer
    Joined: Mar '10
    Posts: 1,643

    Thanks everyone for flagging this bug and a work around. We will try and spend some time with Octave in the coming releases to see if compatibility can be improved.

    Brad.

    Posted 6 years ago #

12. ahd123
    

    Member
    Joined: Mar '19
    Posts: 6

    Had the same issue. Not sure why the eval function is not working with converting the matrix from double to uint. In fact, if I put a break point there and run that exact command in the debug interpreter it runs without error, without the need to place the (:) (in order to convert the already a column matrix to a column matrix.)

    Just a heads up, this occurs multiple times in kspaceFirstOrder_inputChecking.m and all instances need to be fixed including:
    Line
    852
    854
    952
    954
    1087
    1089
    1138
    1526

    Posted 5 years ago #

13. ahd123
    

    Member
    Joined: Mar '19
    Posts: 6

    Also need to update kspaceFirstOrder_expandGridMatrices.m at lines:
    169
    208
    222

    Posted 5 years ago #

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