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Function as parameter.
Posted Feb 23, 2013, 3:48 a.m. EST Geometry, Materials Version 4.3a 1 Reply
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Hello
It is possible to use a function as a parameter in the geometry.
For example, replace the radius of the circle function of time.
Thank you.
It is possible to use a function as a parameter in the geometry.
For example, replace the radius of the circle function of time.
Thank you.
1 Reply Last Post Feb 23, 2013, 7:31 a.m. EST
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Posted:
1 decade ago
Hi
The geometry nodes accept only Parameters or equations assembled with parameters.
Parametes are static variables, loaded once at beginning of solver run.
During solving a parameter might be updated by a Parametric sweep node, or a solver continuation sweep tab.
One exception:
in the parameter list you can use variable nameto define them from firs study start that are later updated. Typical example a t=0 defined in the parameter list, as t which isCOMSL reserved name for time is only defined in transient solver case, like this it is defined from the beginning of the first study, i.e. you can run a stationary study on a model containing references to "t" typically for an initialisation for then after run a time series solver case, from the stationary values obtained from the parametr value of t=0 (or what ever value you choose)
now if you define a function only on parameters, I assume it will still not work for a geometry, as today you cannot even plot a function from within its definition, if it depends on a varaible or a parameter, as this parameter is not yet defined in the function definition, only once the solver has run (workaround for certain cases run the "get initial conditions", this predefines many things, including plots etc and it does not take long ;)
--
Good luck
Ivar
The geometry nodes accept only Parameters or equations assembled with parameters.
Parametes are static variables, loaded once at beginning of solver run.
During solving a parameter might be updated by a Parametric sweep node, or a solver continuation sweep tab.
One exception:
in the parameter list you can use variable nameto define them from firs study start that are later updated. Typical example a t=0 defined in the parameter list, as t which isCOMSL reserved name for time is only defined in transient solver case, like this it is defined from the beginning of the first study, i.e. you can run a stationary study on a model containing references to "t" typically for an initialisation for then after run a time series solver case, from the stationary values obtained from the parametr value of t=0 (or what ever value you choose)
now if you define a function only on parameters, I assume it will still not work for a geometry, as today you cannot even plot a function from within its definition, if it depends on a varaible or a parameter, as this parameter is not yet defined in the function definition, only once the solver has run (workaround for certain cases run the "get initial conditions", this predefines many things, including plots etc and it does not take long ;)
--
Good luck
Ivar