/VectorRhsODE.groovy
Last active Nov 16, 2017
| @ComponentInfo(name="VectorRhsODE", category="ODE") | |
| public class VectorRhsODE implements Serializable, VectorRhsODEInterface { | |
| private static final long serialVersionUID = 1L; | |
| private transient Script script; | |
| @MethodInfo(name="", valueName="", valueStyle="default", valueOptions="", hide=false) | |
| public VectorRhsODEInterface setExpression( | |
| @ParamInfo(name="<html><b>Vector-valued Function f(t,u)</b>: <br>Param: double t, double[] <b>u</b><br>Return: double[] <b>f</b></hmtl>", style="code", options="") String expression) { | |
| GroovyShell shell = new GroovyShell(); | |
| script = shell.parse("import static java.lang.Math.*;" | |
| + "import eu.mihosoft.vrl.types.*;" | |
| + "f = new double[u.length];" | |
| + expression); | |
| return this; | |
| } | |
| @MethodInfo(name="", valueName="", valueStyle="array", valueOptions="", hide=true) | |
| public double[] run( | |
| @ParamInfo(name="t", style="", options="") double t, | |
| @ParamInfo(name="u", style="array", options="") double[] u) { | |
| if(script != null){ | |
| script.setProperty("u", u); | |
| script.setProperty("t", t); | |
| script.run(); | |
| return (double[]) script.getProperty("f"); | |
| } else { | |
| throw(new RuntimeException("No user function specified.")); | |
| } | |
| } | |
| } |
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