From 0e8f0361c1068eb4c2f634dfcf4e1762d87f40d2 Mon Sep 17 00:00:00 2001
From: Tim Redfern <tim@eclectronics.org>
Date: Sat, 31 Mar 2012 16:44:02 +0100
Subject: implementing trap door

---
 morpher/src/morphmesh.cpp | 27 +++++++++++++++------------
 morpher/src/morphmesh.h   | 21 +++++++++++++++++++--
 morpher/src/testApp.cpp   |  5 ++++-
 3 files changed, 38 insertions(+), 15 deletions(-)

(limited to 'morpher/src')

diff --git a/morpher/src/morphmesh.cpp b/morpher/src/morphmesh.cpp
index c617f6f..77cc8c9 100644
--- a/morpher/src/morphmesh.cpp
+++ b/morpher/src/morphmesh.cpp
@@ -1,8 +1,11 @@
 #include "morphmesh.h"
 
 morphmesh::morphmesh()
+{}
+	
+morphmesh::morphmesh(string filename)
 {
-    //ctor
+	loadfile(filename);
 }
 
 morphmesh::~morphmesh()
@@ -11,28 +14,28 @@ morphmesh::~morphmesh()
 }
 
 int morphmesh::getNumTargets(){
-	return targets.size();
+	return morphs.size();
 }
 
 void morphmesh::draw(int target){
 	clearVertices();
-	addVertices(targets[target]);
+	addVertices(morphs[target]);
 	ofMesh::draw();
 }
-void morphmesh::draw(const vector<float>& targetBlend){
+void morphmesh::draw(const vector<int>& targets, const vector<float>& weights){
 	clearVertices();
 	//normalise weights
-	int weightsNum=min(targetBlend.size(),targets.size());
+	int targetsNum=min(targets.size(),morphs.size());
 	float totalWeights=0;
-	for (int i=0;i<weightsNum;i++) totalWeights+=targetBlend[i];
+	for (int i=0;i<targetsNum;i++) totalWeights+=weights[i];
 	float weightFactor=1.0/totalWeights;
 	float bx,by,bz;
-	for (int j=0;j<targets[0].size();j++) {
+	for (int j=0;j<morphs[0].size();j++) {
 		bx=by=bz=0;
-		for (int i=0;i<weightsNum;i++) {
-			bx+=targets[i][j].x*targetBlend[i];
-			by+=targets[i][j].y*targetBlend[i];
-			bz+=targets[i][j].z*targetBlend[i];
+		for (int i=0;i<targetsNum;i++) {
+			bx+=morphs[targets[i]][j].x*weights[i];
+			by+=morphs[targets[i]][j].y*weights[i];
+			bz+=morphs[targets[i]][j].z*weights[i];
 		}
 		addVertex(ofVec3f(bx*weightFactor,by*weightFactor,bz*weightFactor));
 	}
@@ -61,7 +64,7 @@ bool morphmesh::loadfile(string filename){
 							for (int j=0;j<vstrings.size();j+=3) {
 								verts.push_back(ofVec3f(ofToFloat(vstrings[j]),ofToFloat(vstrings[j+1]),ofToFloat(vstrings[j+2])));
 							}
-							targets.push_back(verts);
+							morphs.push_back(verts);
 							
 							if (i==0) {
 								addVertices(verts);
diff --git a/morpher/src/morphmesh.h b/morpher/src/morphmesh.h
index 303533c..7e3cb0b 100644
--- a/morpher/src/morphmesh.h
+++ b/morpher/src/morphmesh.h
@@ -7,20 +7,37 @@
 #include <ofMesh.h>
 #include <ofxXmlSettings.h>
 
+/*
+Tim Redfern, March 2012
+
+Loads meshes in Oak3D XML format
+
+Draws blended morph targets
+
+Multiple meshes are loaded as morph targets
+
+Coords are absolute
+
+TODO
+draw(vector<int> targets, vector<float> weights); - m
+
+*/
+
 
 class morphmesh : public ofMesh
 {
     public:
         morphmesh();
+	morphmesh(string filename);
         virtual ~morphmesh();
 	bool loadfile(string filename);
 	void draw(int target);
-	void draw(const vector<float>& targetBlend);
+	void draw(const vector<int>& targets, const vector<float>& weights);
     int getNumTargets();
     protected:
     private:
     //vector < <vector <ofVec3f> >targets;
-    vector< vector<ofVec3f> > targets;
+    vector< vector<ofVec3f> > morphs;
 };
 
 #endif // MORPHMESH_H
diff --git a/morpher/src/testApp.cpp b/morpher/src/testApp.cpp
index 41b04eb..3b5779e 100644
--- a/morpher/src/testApp.cpp
+++ b/morpher/src/testApp.cpp
@@ -28,8 +28,11 @@ void testApp::update(){
 void testApp::draw(){
 	//calculate morph targets
 	float segment=(sin(ofGetElapsedTimef())*0.5)+0.5;
+	vector<int> targets;
 	vector<float> weights;
+	targets.push_back(0);
 	weights.push_back(segment);
+	targets.push_back(1);
 	weights.push_back(1.0-segment);
 	//printf("drawing %f %f\n",segment,1.0-segment);
 	
@@ -41,7 +44,7 @@ void testApp::draw(){
 		ofRotate(yr,1,0,0);
 		ofRotate(180,1,0,0);
 		ofScale(2.0,2.0,2.0);
-		mesh.draw(weights);
+		mesh.draw(targets,weights);
 	ofPopMatrix();
 	unbindTexture(texture);
 	
-- 
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