--FEMM Animation Lua Script by H.M.Wassim 11/3/2018--
--It is as easy as pasting the script to the Lua console then evaluating--
--You can adjust the settings if you want to--
--This script is developed to create sequence of screenshots for each phase angle--
--I hope this would somehow help someone someday--
-------||Animation Settings||---------
--step angle for each frame in degrees
step_angle=5;
--number of picturs to be exported
number_of_frames=72;
--------||Machine Settings||--------
rotor_radius=30;
air_gap=2;
--center of rotation coordinates
x=0
y=0
--enable/disable physical rotation of the rotor
physical_rotation=0
--enable/disable magnetic field rotation
rotating_magnetic_field=1
current_density=3.1--J, MA/m^2
Angle=0
rotor_selection_radius=rotor_radius+(air_gap)/2
mi_seteditmode("group")
--analyze and show resaults:
mi_analyze()
mi_loadsolution()
--mo_showdensityplot(-1)
--mo_zoomnatural()
for k=0,number_of_frames do
--analyze and show resaults:
mi_analyze()
mi_loadsolution()
if physical_rotation>0 then
--select rotor:x,y,R,all=4
mi_selectcircle(x,y,rotor_selection_radius,4)
--rotate it by 1 degree/move up by 1 unit:
mi_moverotate(x,y,step_angle) --/ mi_movetranslate(0,1)
end
--angle in radians
if rotating_magnetic_field>0 then
Angle=Angle+((step_angle*3.14)/180)
current_density=3.1
mi_modifymaterial("A+",4,1.141*current_density*(cos(Angle)+I*sin(Angle)))
mi_modifymaterial("A-",4,-1.141*current_density*(cos(Angle)+I*sin(Angle)))
mi_modifymaterial("B+",4,1.141*current_density*(cos(Angle+(3.14*2)/3)+I*sin(Angle+(3.14*2)/3)))
mi_modifymaterial("B-",4,-1.141*current_density*(cos(Angle+(3.14*2)/3)+I*sin(Angle+(3.14*2)/3)))
mi_modifymaterial("C+",4,1.141*current_density*(cos(Angle+(3.14*4)/3)+I*sin(Angle+(3.14*4)/3)))
mi_modifymaterial("C-",4,-1.141*current_density*(cos(Angle+(3.14*4)/3)+I*sin(Angle+(3.14*4)/3)))
end
--save screenshot
mo_savebitmap("c:\\temp\\"..k..".png")
end
--For any ideas or suggestions Email me at [email protected] Write, Run & Share Lua code online using OneCompiler's Lua online compiler for free. It's one of the robust, feature-rich online compilers for Lua language, running the latest Lua version 5.4. Getting started with the OneCompiler's Lua editor is easy and fast. The editor shows sample boilerplate code when you choose language as Lua and start coding.
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print ("Hello ", name)
Lua is a light weight embeddable scripting language which is built on top of C. It is used in almost all kind of applications like games, web applications, mobile applications, image processing etc. It's a very powerful, fast, easy to learn, open-source scripting language.
-- global variables
a = 10
-- local variables
local x = 30
| Value Type | Description |
|---|---|
| number | Represents numbers |
| string | Represents text |
| nil | Differentiates values whether it has data or not |
| boolean | Value can be either true or false |
| function | Represents a sub-routine |
| userdata | Represents arbitary C data |
| thread | Represents independent threads of execution. |
| table | Can hold any value except nil |
While is also used to iterate a set of statements based on a condition. Usually while is preferred when number of iterations are not known in advance.
while(condition)
do
--code
end
Repeat-Until is also used to iterate a set of statements based on a condition. It is very similar to Do-While, it is mostly used when you need to execute the statements atleast once.
repeat
--code
until( condition )
For loop is used to iterate a set of statements based on a condition.
for init,max/min value, increment
do
--code
end
Function is a sub-routine which contains set of statements. Usually functions are written when multiple calls are required to same set of statements which increase re-usuability and modularity.
optional_function_scope function function_name( argument1, argument2, argument3........, argumentn)
--code
return params with comma seperated
end