6 Model file format

53

Example implementation var

T : array [1..10] of TFloat; P : TFloat;

procedure PreCalc; begin

P := 1;

T[1] := 10;

T[2] := 10;

…

AddDynVar(T[1],10,'T1','Temperature 1'); AddDynVar(T[2],10,'T2','Temperature 2');

…

AddDynVar(P,1,'P','Pressure'); end;

6.14.4 AddStatVar

AddStatVar is used to add static variables just before the simulation begins (i.e. after the user starts the simulation, but before ModelEquations is called the first time). AddStatVar is normally called in PreCalc.

Heading

function AddStatVar(State : TInteger; var Variable : TFloat; InitalGuess : TFloat; Name,LongName : PChar) : TInteger;

function AddStatVarExt(State : TInteger; var Variable : TFloat; InitalGuess : TFloat; Name,LongName : PChar; Min,Max : TFloat; DoPlot : TBoolean; ALabel : PChar) : TInteger;

Parameters
State	The state the static variable belongs to.
Variable	The declared pascal variable, which represents the variable in the model.
InitialGuess	The default guess on the static variable.
Name	Short name that appears on plots.
LongName	Long name, appears on the Guesses page in the Solver & Model settings
Min	window in the Simulation program.
	Minimum value the user can set the variable to (and limit for the static
Max	equation solver).
	Maximum value the user can set the variable to (and limit for the static
	equation solver).
DoPlot	If Min = Max = 0 then no limits are set.
	True: Plot/save is available to the user for this variable
Return value	False: Plot/save is not available to the user for this variable.

The number assigned to the static variable. Can be used to identify the variable in calls to

SetGuess.

WinDali

Morten Juel Skovrup