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--- tutorials:ode-framework [2025/07/25 12:57] – Tim
+++ tutorials:ode-framework [2025/07/25 14:13] (current) – Tim
@@ Line 107: / Line 107: @@
 ]
 </code>
+===== monitorPeriodic =====
+Trigger an event in regular intervals and call the event handler. The event handler must not modify the graph.
+This allows to keep track of the changes for example:
+<code>
+import static java.lang.Math.*;
+DatasetRef data = new DatasetRef("Dataplot");
+const double PERIOD = 1.0;
+double t;
+double x;
+protected void init ()
+{
+  data.clear().setColumnKey(0, "x");
+  chart(data, XY_PLOT);
+  t = 0;
+  x = 1;
+  data.addRow().setX(0, t).setY(0, x);
+}
+public void run ()
+{
+  monitorPeriodic(1, new Runnable() {
+    public void run() { data.addRow().setX(0, t).setY(0, x); }
+  });
+  integrate(10);
+}
+protected void getRate()
+{
+  t :'= 1;
+  x :'= 0.1 * x;
+}
+</code>