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Author Topic: LUA Script in FEMM 4.2 - please help!:-)  (Read 1013 times)

Offline Low-Q

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LUA Script in FEMM 4.2 - please help!:-)
« on: September 08, 2016, 10:46:36 PM »
Hello,


Some years ago I got great help from someone here who was a racer in LUA scripts. But those scripts I saved in my old computer, which is pretty much out of service now.


I need help to make a script that measure torque of a group made in FEMM 4.2. I have read the FEMM 4.2 manual, but I cannot understand what script to use, or where to put them in right order.


I want to keep the original file, so the script must save the results as another file.


For group 1 with center X0 - Y0, I need 0.8 degree steps starting at 0 degrees, ends at 71.2 degrees (At 72 degrees the result will be the same as 0 degrees)
For group 2 with center X0 - Y1, I need 1 degree steps starting at 0 degrees, ends at 89 degrees (At 90 degrees the result will be the same as 0 degrees)[/size]


Can someone please help? Any help is very much appreciated :-)


Vidar

Free Energy | searching for free energy and discussing free energy


Offline broli

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Re: LUA Script in FEMM 4.2 - please help!:-)
« Reply #1 on: September 08, 2016, 11:05:26 PM »
I used a script that I've used myself a while ago and modified it for your needs, please be aware it's not tested but I think it should give you a decent start :) .
Besides generating data it also generates an image of every simulated step which can later be converted to an animated gif file if you want.

showconsole()
--Defining the variables
dAngle=0.8    -- Increase of angle ( Degrees of rotor rotation by step )
totalDegrees= 72 -- amount of total degrees to roate
X0 = 0
Y0 = 0

open("myfile.fem")
mi_saveas("temp.fem")    -- Temp file for save the original
mi_seteditmode("group")

data = {};
for n=0,((totalDegrees/dAngle)-1) do
    alfa=dAngle*n
    print(alfa) -- print to console for debugging and showing the progress
    --analyze the current rotation and take image
    mi_analyse(1)
    mi_loadsolution()
    mo_showdensityplot(0,0,0.5,0,"mag")        -- Obtain Image
    mo_savebitmap(format("acgen_%1$d.bmp",alfa))  -- Save Image
    --Calculate the torque
    mi_analyse(1)
    mi_loadsolution()
    mo_groupselectblock(1)
    torque = mo_blockintegral(22)
   
    --gather all data
    data[n] = {}
    data[n][1] = alfa
    data[n][2] = torque
    mo_close()
   
    -- write results to disk for further analysis, make sure the file already exist to write the results to
    fp=openfile("results.txt","a")
    write(fp,data[n][1],"\t" .. data[n][2],"\n")
    closefile(fp);
   
    mi_selectgroup(1)            -- Select Rotor group
    mi_move_rotate(X0,Y0,dAngle)        -- Rotate the rotor
end


Offline Low-Q

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Re: LUA Script in FEMM 4.2 - please help!:-)
« Reply #2 on: September 08, 2016, 11:40:02 PM »
WOW! I can't thank you enough :)  This is awesome!
Thank you broli!


Vidar

Offline Low-Q

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Re: LUA Script in FEMM 4.2 - please help!:-)
« Reply #3 on: September 08, 2016, 11:55:41 PM »
I tried it, and I think it need some minor modifications. I got an error message. Please see attached picture :-)



showconsole()
--Defining the variables
dAngle=0.8    -- Increase of angle ( Degrees of rotor rotation by step )
totalDegrees= 72 -- amount of total degrees to roate
X0 = 0
Y0 = 0


open("GE.FEM")
mi_saveas("GEtemp.FEM")    -- Temp file for save the original
mi_seteditmode("1")


data = {};
for n=0,((totalDegrees/dAngle)-1) do
    alfa=dAngle*n
    print(alfa) -- print to console for debugging and showing the progress
    --analyze the current rotation and take image
    mi_analyse(1)
    mi_loadsolution()
    mo_showdensityplot(0,0,0.5,0,"mag")        -- Obtain Image
    mo_savebitmap(format("acgen_%1$d.bmp",alfa))  -- Save Image
    --Calculate the torque
    mi_analyse(1)
    mi_loadsolution()
    mo_groupselectblock(1)
    torque = mo_blockintegral(22)
   
    --gather all data
    data[n] = {}
    data[n][1] = alfa
    data[n][2] = torque
    mo_close()
   
    -- write results to disk for further analysis, make sure the file already exist to write the results to
    fp=openfile("results.txt","a")
    write(fp,data[n][1],"\t" .. data[n][2],"\n")
    closefile(fp);
   
    mi_selectgroup(1)            -- Select Rotor group
    mi_move_rotate(X0,Y0,dAngle)        -- Rotate the rotor
end


Offline Low-Q

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Re: LUA Script in FEMM 4.2 - please help!:-)
« Reply #4 on: September 09, 2016, 12:05:05 AM »
I made a mistake in "group"...at the beginning. It works now - just have to add script for group 2 because these two groups are colliding :D

Free Energy | searching for free energy and discussing free energy

Re: LUA Script in FEMM 4.2 - please help!:-)
« Reply #4 on: September 09, 2016, 12:05:05 AM »
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Offline Low-Q

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Re: LUA Script in FEMM 4.2 - please help!:-)
« Reply #5 on: September 09, 2016, 12:50:18 AM »
Can I just copy the script twice in the same LUA?


I want both groups to rotate in the same script. I have tried just to add the script once more, under the first one, and changed group number, XY points etc, but got errors...


Vidar

Offline broli

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Re: LUA Script in FEMM 4.2 - please help!:-)
« Reply #6 on: September 09, 2016, 08:46:26 AM »
Since it's the same amount of steps just different increments you can keep it in the same for loop and try something like this (I highlighted the changes):

showconsole()
--Defining the variables
dAngle1=0.8    -- Increase of angle for group 1 ( Degrees of rotor rotation by step )
dAngle2=1.0    -- Increase of angle for group 2 ( Degrees of rotor rotation by step )
totalDegrees= 72 -- amount of total degrees to roate
X0 = 0
Y0 = 0


open("GE.FEM")
mi_saveas("GEtemp.FEM")    -- Temp file for save the original
mi_seteditmode("group")


data = {};
for n=0,((totalDegrees/dAngle1)-1) do
    alfa=dAngle1*n
    print(alfa) -- print to console for debugging and showing the progress
    --analyze the current rotation and take image
    mi_analyse(1)
    mi_loadsolution()
    mo_showdensityplot(0,0,0.5,0,"mag")        -- Obtain Image
    mo_savebitmap(format("acgen_%1$d.bmp",alfa))  -- Save Image
    --Calculate the torque
    mi_analyse(1)
    mi_loadsolution()
    mo_groupselectblock(1)
    torque = mo_blockintegral(22)
   
    --gather all data
    data[n] = {}
    data[n][1] = alfa
    data[n][2] = torque
    mo_close()
   
    -- write results to disk for further analysis, make sure the file already exist to write the results to
    fp=openfile("results.txt","a")
    write(fp,data[n][1],"\t" .. data[n][2],"\n")
    closefile(fp);
    -- rotate group 1
    mi_selectgroup(1)            -- Select Rotor group 1
    mi_move_rotate(X0,Y0,dAngle1)        -- Rotate the rotor
    -- rotate group 2
    mi_selectgroup(2)            -- Select Rotor group 2
    mi_move_rotate(X0,Y0,dAngle2)        -- Rotate the rotor

end

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Re: LUA Script in FEMM 4.2 - please help!:-)
« Reply #6 on: September 09, 2016, 08:46:26 AM »
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Offline Low-Q

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Re: LUA Script in FEMM 4.2 - please help!:-)
« Reply #7 on: September 09, 2016, 01:15:59 PM »
Thanks again broli! This is really helpful :D


Can I put in additional line:
X1 = 0
Y1 = -1


and change:
mi_move_rotate(X0,Y0,dAngle2) to mi_move_rotate(X1,Y1,dAngle2)?


If I want to rotate group 2 90 degrees instead, can I add:
dAngle1=0.8    -- Increase of angle for group 1 ( Degrees of rotor rotation by step )
dAngle2=1.0    -- Increase of angle for group 2 ( Degrees of rotor rotation by step )
totalDegrees= 72 -- amount of total degrees to roate
totalDegrees= 90 -- amount of total degrees to roate???[/size]


Vidar

Offline Low-Q

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Re: LUA Script in FEMM 4.2 - please help!:-)
« Reply #8 on: September 09, 2016, 02:08:23 PM »
Ofcourse - when outer rotor turns 72 degrees the inner rotor turns 90 by itself. Didn't think of that.


Now it all works as I want it to. Thank you!!!!!


Vidar

 

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