From 1039fe7789a990eee6e00896cf85bc097e9009dc Mon Sep 17 00:00:00 2001
From: Tim Redfern <tim@eclectronics.org>
Date: Fri, 6 Apr 2012 18:58:50 +0100
Subject: working track interpolation

---
 gaunt01/src/morphmesh.cpp | 47 +++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 41 insertions(+), 6 deletions(-)

(limited to 'gaunt01/src/morphmesh.cpp')

diff --git a/gaunt01/src/morphmesh.cpp b/gaunt01/src/morphmesh.cpp
index 5fc7182..e68e526 100644
--- a/gaunt01/src/morphmesh.cpp
+++ b/gaunt01/src/morphmesh.cpp
@@ -1,8 +1,44 @@
 #include "morphmesh.h"
 
+sequence::sequence()
+{
+}
+
+track::track()
+{
+}
+
+/*
+void track::addKey(float time,float weight)
+{
+    keys.push_back(key(time,weight));
+}
+*/
+
+float track::evaluate(float time)
+{
+    //interpolate key track
+    if (time<=keys.begin()->first) return keys.begin()->second;
+    if (time>keys.rbegin()->first) return keys.rbegin()->second;
+    multimap< float,float >::iterator key2=keys.upper_bound( time );
+    multimap< float,float >::iterator key1=key2--;
+    float interval=key2->first-key1->first;
+    return (((1.0-((key2->first-time)/interval))*key2->second)+((1.0-((time-key1->first)/interval))*key1->second));
+}
+
 morphmesh::morphmesh()
 {
 	loaded=false;
+	/*
+	//testing track function
+	track testrack;
+	testrack.keys.insert( pair<float,float>(0.0,2.0) );
+	testrack.keys.insert( pair<float,float>(1.0,4.0) );
+	testrack.keys.insert( pair<float,float>(0.5,10.0) );
+	for (float f=-0.4;f<1.4;f+=0.1) {
+        printf("%f : %f\n",f,testrack.evaluate(f));
+	}
+	*/
 }
 
 morphmesh::morphmesh(string filename)
@@ -11,10 +47,6 @@ morphmesh::morphmesh(string filename)
 	loadMesh(filename);
 }
 
-morphmesh::~morphmesh()
-{
-    //dtor
-}
 
 int morphmesh::getNumTargets(){
 	return morphs.size();
@@ -23,10 +55,13 @@ void morphmesh::draw() {
 	draw(0);
 }
 void morphmesh::draw(int target){
-	clearVertices();
 	map<string,vector<ofVec3f> >::iterator it=morphs.begin();
     for ( int i=0;i<target;i++ ) it++;
-	addVertices(it->second);
+	draw(it->first);
+}
+void morphmesh::draw(string target){
+	clearVertices();
+	addVertices(morphs[target]);
 	ofMesh::draw();
 }
 void morphmesh::draw(const vector<string>& targets, const vector<float>& weights){
-- 
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