ofxRay confusion

3 files changed, 162 insertions, 0 deletions

diff --git a/rayhit/src/main.cpp b/rayhit/src/main.cpp
new file mode 100644
index 0000000..6a32c6a
--- /dev/null
+++ b/rayhit/src/main.cpp
@@ -0,0 +1,16 @@
+#include "ofMain.h"
+#include "testApp.h"
+#include "ofAppGlutWindow.h"
+
+//========================================================================
+int main( ){
+
+    ofAppGlutWindow window;
+	ofSetupOpenGL(&window, 1024,768, OF_WINDOW);			// <-------- setup the GL context
+
+	// this kicks off the running of my app
+	// can be OF_WINDOW or OF_FULLSCREEN
+	// pass in width and height too:
+	ofRunApp( new testApp());
+
+}
diff --git a/rayhit/src/testApp.cpp b/rayhit/src/testApp.cpp
new file mode 100644
index 0000000..750287c
--- /dev/null
+++ b/rayhit/src/testApp.cpp
@@ -0,0 +1,109 @@
+#include "testApp.h"
+
+//--------------------------------------------------------------
+void testApp::setup(){
+	ofVec3f centre=ofVec3f(ofGetWidth()/2,ofGetHeight(),0);
+	ofVec3f normal=ofVec3f(0,0,1);
+	ray=ofRay();
+	plane=ofPlane(centre,normal);
+	
+	projector=ofProjector(ofGetWidth(),ofGetHeight());
+	
+	pos=ofVec3f(ofGetWidth()/2,ofGetHeight()/2,0);
+}
+
+//--------------------------------------------------------------
+void testApp::update(){
+	
+
+
+}
+
+//--------------------------------------------------------------
+void testApp::draw(){
+	ofBackground(0,0,0);
+	plane.draw();
+	
+	float gap=ofGetHeight()-ofGetWidth();
+	
+	ofPushMatrix();
+
+	ofTranslate(0,ofGetHeight(),0);
+	ofRotate(cam_angle,1,0,0);
+	ofTranslate(0,-ofGetHeight(),0);
+
+	for (float i=0;i<ofGetWidth();i+=ofGetWidth()/10) {
+        glBegin(GL_LINES);
+            glVertex3f(i,gap,0);
+            glVertex3f(i,ofGetHeight(),0);
+        glEnd();
+        glBegin(GL_LINES);
+            glVertex3f(0,i+gap,0);
+            glVertex3f(ofGetWidth(),i+gap,0);
+        glEnd();
+	}
+	
+	ofPopMatrix();
+	
+	ofSphere(pos.x,pos.y,pos.z,20);
+
+}
+
+//--------------------------------------------------------------
+void testApp::keyPressed(int key){
+
+	switch (key){
+		case 'a':
+			cam_angle+=1;
+			break;
+		case 'z':
+			cam_angle-=1;
+			break;
+	}
+	plane.setNormal(ofVec3f(0,sin(cam_angle),cos(cam_angle)));
+}
+
+//--------------------------------------------------------------
+void testApp::keyReleased(int key){
+
+}
+
+//--------------------------------------------------------------
+void testApp::mouseMoved(int x, int y ){
+	
+}
+
+//--------------------------------------------------------------
+void testApp::mouseDragged(int x, int y, int button){
+
+}
+
+//--------------------------------------------------------------
+void testApp::mousePressed(int x, int y, int button){
+
+}
+
+//--------------------------------------------------------------
+void testApp::mouseReleased(int x, int y, int button){
+	ray=projector.castPixel(x,(ofGetHeight()-y));
+	bool hit = plane.intersect(ray,pos);
+	pos=ofVec3f(pos.x*2,pos.y*2,pos.z*2);
+	if (hit) printf("ray:%i,%i hit plane:%f,%f,%f\n",x,y,pos.x,pos.y,pos.z);
+	else printf("ray:%i,%i missed plane\n",x,y);
+	
+}
+
+//--------------------------------------------------------------
+void testApp::windowResized(int w, int h){
+
+}
+
+//--------------------------------------------------------------
+void testApp::gotMessage(ofMessage msg){
+
+}
+
+//--------------------------------------------------------------
+void testApp::dragEvent(ofDragInfo dragInfo){
+
+}
diff --git a/rayhit/src/testApp.h b/rayhit/src/testApp.h
new file mode 100644
index 0000000..e5a035d
--- /dev/null
+++ b/rayhit/src/testApp.h
@@ -0,0 +1,37 @@
+#pragma once
+
+#include "ofMain.h"
+
+#include "ofxOpenCv.h"
+#include "ofxRay.h"
+
+//#define _USE_LIVE_VIDEO		// uncomment this to use a live camera
+								// otherwise, we'll use a movie file
+
+class testApp : public ofBaseApp{
+
+	public:
+		void setup();
+		void update();
+		void draw();
+
+		void keyPressed(int key);
+		void keyReleased(int key);
+		void mouseMoved(int x, int y );
+		void mouseDragged(int x, int y, int button);
+		void mousePressed(int x, int y, int button);
+		void mouseReleased(int x, int y, int button);
+		void windowResized(int w, int h);
+		void dragEvent(ofDragInfo dragInfo);
+		void gotMessage(ofMessage msg);
+
+		float cam_angle;
+	
+		ofRay ray;
+		ofPlane plane;
+		ofProjector projector; 
+	
+		ofVec3f pos;
+
+};
+