public static void main(String[] args) {
if (args.length < 1) {
System.out.println("Usage: evaluateCustomMath formula [model containing values]");
System.exit(1);
}
String formula = args[0];
String filename = args.length == 2 ? args[1] : null;
ASTNode math = libsbml.parseFormula(formula);
if (math == null) {
System.out.println("Invalid formula, aborting.");
System.exit(1);
}
SBMLDocument doc = null;
if (filename != null) {
doc = libsbml.readSBML(filename);
if (doc.getNumErrors(libsbml.LIBSBML_SEV_ERROR) > 0) {
System.out.println("The models contains errors, please correct them before continuing.");
doc.printErrors();
System.exit(1);
}
// the following maps a list of ids to their corresponding model values
// this makes it possible to evaluate expressions involving SIds.
SBMLTransforms.mapComponentValues(doc.getModel());
} else {
// create dummy document
doc = new SBMLDocument(3, 1);
}
double result = SBMLTransforms.evaluateASTNode(math, doc.getModel());
System.out.println(String.format("%s = %s", formula, result));
}
