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Torque/SDK/lib/maxsdk40/keyreduc.h

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+/**********************************************************************
+ *<
+	FILE: keyreduc.h
+
+	DESCRIPTION:  Key reduction
+
+	CREATED BY: Rolf Berteig
+
+	HISTORY: created 9/30/95
+
+ *>	Copyright (c) 1994, All Rights Reserved.
+ **********************************************************************/
+
+#ifndef __KEYREDUC__
+#define __KEYREDUC__
+
+#define DEFULAT_KEYREDUCE_THRESHOLD		(0.5f)
+
+// Values returned from Progress
+#define KEYREDUCE_ABORT		-1		// Stops processing and undoes any key reduction
+#define KEYREDUCE_STOP		0		// Stops processing, but keeps any reduction done so far
+#define KEYREDUCE_CONTINUE	1		// Keeps going.
+
+// A callback so progress can be made during key reduction
+class KeyReduceStatus {
+	public:
+		// Called once before reduction starts. 'total' is the number
+		// reduction canidate keys.
+		virtual void Init(int total)=0;
+
+		// Called every now and again. 'p' is the number of keys
+		// processed. So % done is p/total * 100.		
+		virtual int Progress(int p)=0;
+	};
+
+// Attempts to delete keys that lie within the given time range.
+// The controller will be sampled within the range in 'step' size
+// increments. After the key reduction, the controller's values
+// at each step are gauranteed to be withen 'threshold' distance
+// from their original values.
+//
+CoreExport int ApplyKeyReduction(
+		Control *cont,Interval range,float thresh,TimeValue step,
+		KeyReduceStatus *status);
+
+
+#endif  //__KEYREDUC__
+