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testApp.cpp
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testApp.cpp
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#include "testApp.h"
//--------------------------------------------------------------
void testApp::setup(){
}
//--------------------------------------------------------------
void testApp::update(){
}
//--------------------------------------------------------------
void testApp::draw(){
ofSetBackgroundColor(0, 0, 0);
ofNoFill();
ofSetLineWidth(2);
ofSetColor(255, 255, 255);
switch (exampleIndex) {
case 0://pointOnLine
{
ofPushMatrix();
ofTranslate(ofGetWidth()/2, ofGetHeight()/2);
ofPoint p0 = ofPoint(0,0);
ofPoint p1 = ofPoint(100,0);
float distance = mouseX/2;
ofPoint pointOnLine = ofxFractalGeometry::pointOnLine(p0, p1, distance);
ofDrawEllipse(p0,10,10);
ofDrawEllipse(p1, 10, 10);
ofDrawLine(p0, p1);
ofSetColor(255, 255, 0);
ofDrawEllipse(pointOnLine, 12, 12);
ofDrawLine(p1,pointOnLine);
ofPopMatrix();
break;
}
case 1://pointAtAbsoluteAngle
{
ofPushMatrix();
ofTranslate(ofGetWidth()/2, ofGetHeight()/2);
ofPoint p0 = ofPoint(0,0);
float distance = 100;
float angle = ofMap(mouseX/2,0,ofGetWidth()/2,0,TWO_PI);
ofPoint pointAtAbsoluteAngle = ofxFractalGeometry::pointAtAbsoluteAngle(p0, distance,angle);
ofDrawEllipse(p0,10,10);
ofSetColor(255, 255, 0);
ofDrawEllipse(pointAtAbsoluteAngle, 12, 12);
ofDrawLine(p0,pointAtAbsoluteAngle);
ofPopMatrix();
break;
}
case 2://pointAtRelativeAngle
{
ofPushMatrix();
ofTranslate(ofGetWidth()/2, ofGetHeight()/2);
ofPoint p0 = ofPoint(0,0);
ofPoint p1 = ofPoint(100,50);
float distance = 100;
float angle = ofMap(mouseX/2,0,ofGetWidth()/2,0,TWO_PI);
ofPoint pointAtRelativeAngle = ofxFractalGeometry::pointAtRelativeAngle(p0, p1, distance,angle);
ofDrawEllipse(p0,10,10);
ofDrawEllipse(p1, 10, 10);
ofDrawLine(p0, p1);
ofSetColor(255, 255, 0);
ofDrawEllipse(pointAtRelativeAngle, 12, 12);
ofDrawLine(p1,pointAtRelativeAngle);
ofPopMatrix();
break;
}
case 3://perpendicularPoints
{
ofPushMatrix();
ofTranslate(ofGetWidth()/2, ofGetHeight()/2);
ofPoint p0 = ofPoint(0,0);
ofPoint p1 = ofPoint(100,mouseX/4);
ofPoint perpendicularPoints[2];
float distance = 100;
ofxFractalGeometry::perpendicularPoints(p0, p1, perpendicularPoints, distance);
ofDrawEllipse(p0,10,10);
ofDrawEllipse(p1, 10, 10);
ofDrawLine(p0, p1);
ofSetColor(255, 255, 0);
ofDrawEllipse( (ofPoint)perpendicularPoints[0], 12, 12);
ofDrawEllipse( (ofPoint)perpendicularPoints[1], 12, 12);
ofDrawLine(p1, perpendicularPoints[0]);
ofDrawLine(p1, perpendicularPoints[1]);
ofPopMatrix();
break;
}
case 4://pointOnPlane
{
ofPushMatrix();
ofTranslate(ofGetWidth()/2, ofGetHeight()/2);
ofPoint p0 = ofPoint(-ofGetWidth()/2,-ofGetHeight()/2);
ofPoint p1 = ofPoint(ofGetWidth()/2,mouseX/2);
ofPoint targetPoint = ofPoint(200,0);
ofPoint planePoint = ofPoint(50,50);
Boolean b = ofxFractalGeometry::pointOnPlane(p0, p1, planePoint, targetPoint);
ofSetBackgroundColor((b)?128:0);
ofDrawEllipse(p0,10,10);
ofDrawEllipse(p1, 10, 10);
ofDrawLine(p0, p1);
ofSetColor(0, 255, 255);
ofDrawEllipse( planePoint , 12, 12);
ofSetColor(255, 255, 0);
ofDrawEllipse( targetPoint, 12, 12);
ofPopMatrix();
break;
}
case 5://closestPointOnLineFromPoint
{
ofPushMatrix();
ofTranslate(ofGetWidth()/2, ofGetHeight()/2);
ofPoint p0 = ofPoint(-ofGetWidth()/4,-ofGetHeight()/4);
ofPoint p1 = ofPoint(ofGetWidth()/4,mouseX/2);
ofPoint pT = ofPoint(200,0);
ofPoint closestPointOnLineFromPoint = ofxFractalGeometry::closestPointOnLineFromPoint(p0, p1, pT);
ofDrawEllipse(p0,10,10);
ofDrawEllipse(p1, 10, 10);
ofDrawLine(p0, p1);
ofDrawEllipse( pT , 12, 12);
ofSetColor(255, 255, 0);
ofDrawLine(pT, closestPointOnLineFromPoint);
ofDrawEllipse( closestPointOnLineFromPoint, 12, 12);
ofPopMatrix();
break;
}
case 6://middlePoint
{
ofPushMatrix();
ofTranslate(ofGetWidth()/2, ofGetHeight()/2);
ofPoint p0 = ofPoint(-ofGetWidth()/4,-mouseX/4);
ofPoint p1 = ofPoint(ofGetWidth()/4,mouseX/2);
ofPoint middlePoint = ofxFractalGeometry::middlePoint(p0, p1);
ofDrawEllipse(p0,10,10);
ofDrawEllipse(p1, 10, 10);
ofSetColor(255, 255, 0);
ofDrawLine(p0, middlePoint);
ofDrawLine(p1,middlePoint);
ofDrawEllipse( middlePoint, 12, 12);
ofPopMatrix();
break;
}
case 7://distanceBetweenTwoPoints
{
ofPushMatrix();
ofTranslate(ofGetWidth()/2, ofGetHeight()/2);
ofPoint p0 = ofPoint(-ofGetWidth()/4,-mouseX/4);
ofPoint p1 = ofPoint(ofGetWidth()/4,mouseX/2);
float distance = ofxFractalGeometry::distanceBetweenTwoPoints(p0, p1);
ofDrawEllipse(p0,10,10);
ofDrawEllipse(p1, 10, 10);
ofDrawLine(p0, p1);
ofDrawBitmapString(ofToString(distance),ofxFractalGeometry::middlePoint(p0, p1));
ofPopMatrix();
break;
}
case 8://isRightTurn
{
ofPushMatrix();
ofTranslate(ofGetWidth()/2, ofGetHeight()/2);
ofPoint a = ofPoint(-ofGetWidth()/4,0);
ofPoint b = ofPoint(ofGetWidth()/4,0);
ofPoint c = ofPoint((mouseX*0.75)-ofGetWidth()/4,(mouseX*0.75)-(ofGetHeight()/2));
bool isRightTurn= ofxFractalGeometry::isRightTurn(a, b,c);
ofSetBackgroundColor((isRightTurn)?128:0);
ofDrawEllipse(a,10,10);
ofDrawEllipse(b, 10, 10);
ofDrawLine(a, b);
ofSetColor(255, 255, 0);
ofDrawLine(b, c);
ofDrawEllipse( c, 12, 12);
ofPopMatrix();
break;
}
case 9://getConvexHull
{
ofPushMatrix();
ofTranslate(ofGetWidth()/2, ofGetHeight()/2);
ofPoint p0 = ofPoint(-ofGetWidth()/8,mouseX/4);
ofPoint p1 = ofPoint(-ofGetWidth()/4,mouseX/2);
ofPoint p2 = ofPoint(10,100);
ofPoint p3 = ofPoint(ofGetWidth()/4,mouseX/2);
ofPoint p4 = ofPoint(ofGetWidth()/4,-mouseX/2);
ofPoint p5 = ofPoint(0,mouseX/4);
vector<ofPoint> points;
points.push_back(p0);
points.push_back(p1);
points.push_back(p2);
points.push_back(p3);
points.push_back(p4);
points.push_back(p5);
for(int i =0; i<points.size();i++)
{
ofDrawEllipse(points[i],10,10);
}
vector<ofPoint> convexHull = ofxFractalGeometry::getConvexHull(points);
ofSetColor(255, 255, 0);
ofBeginShape();
for(int i =0; i<convexHull.size();i++)
{
ofVertex(convexHull[i]);
}
ofEndShape();
ofPopMatrix();
break;
}
case 10://findEqualDetourPoint
{
ofPushMatrix();
ofTranslate(ofGetWidth()/2, ofGetHeight()/2);
ofPoint a = ofPoint(-ofGetWidth()/4,0);
ofPoint b = ofPoint(ofGetWidth()/4,0);
ofPoint c = ofPoint(0,-50-mouseX/5);
ofPoint findEqualDetourPoint = ofxFractalGeometry::findEqualDetourPoint(a, b, c);
ofSetPolyMode(OF_POLY_WINDING_NONZERO);
ofBeginShape();
ofVertex(a);
ofVertex(b);
ofVertex(c);
ofEndShape();
ofSetColor(255, 255, 0);
ofDrawEllipse( findEqualDetourPoint, 12, 12);
ofPopMatrix();
break;
}
case 11://convertPoint3DtoFake2D
{
ofPushMatrix();
ofTranslate(ofGetWidth()/2, ofGetHeight()/2);
ofPoint p0 = ofPoint(-100,0);
ofPoint p1 = ofPoint(100,0);
ofPoint p2 = ofPoint(100,200);
ofPoint p3 = ofPoint(-100,200);
ofPoint fake3dPoint0 = ofxFractalGeometry::convertPoint3DtoFake2D(p0.x,p0.y,mouseX/5);
ofPoint fake3dPoint1 = ofxFractalGeometry::convertPoint3DtoFake2D(p1.x,p1.y,mouseX/5);
ofPoint fake3dPoint2 = ofxFractalGeometry::convertPoint3DtoFake2D(p2.x,p2.y,mouseX/5);
ofPoint fake3dPoint3 = ofxFractalGeometry::convertPoint3DtoFake2D(p3.x,p3.y,mouseX/5);
ofDrawEllipse(p0,10,10);
ofDrawEllipse(p1, 10, 10);
ofDrawEllipse(p2,10,10);
ofDrawEllipse(p3, 10, 10);
ofDrawLine(p0,p1);
ofDrawLine(p1,p2);
ofDrawLine(p2,p3);
ofDrawLine(p3,p0);
ofSetColor(255, 255, 0,128);
ofDrawEllipse( fake3dPoint0, 12, 12);
ofDrawEllipse( fake3dPoint1, 12, 12);
ofDrawEllipse( fake3dPoint2, 12, 12);
ofDrawEllipse( fake3dPoint3, 12, 12);
ofDrawLine(p0, fake3dPoint0);
ofDrawLine(p1, fake3dPoint1);
ofDrawLine(p2, fake3dPoint2);
ofDrawLine(p3, fake3dPoint3);
ofDrawLine(fake3dPoint0,fake3dPoint1);
ofDrawLine(fake3dPoint1,fake3dPoint2);
ofDrawLine(fake3dPoint2,fake3dPoint3);
ofDrawLine(fake3dPoint3,fake3dPoint0);
ofPopMatrix();
break;
}
default:
break;
}
ofSetColor(255);
ofDrawBitmapString("Use the arrow keys left and right to explore the functions", 10, 20);
ofDrawBitmapString("The current function is "+functionNames[exampleIndex], 10, 40);
ofDrawBitmapString("ofxFractalGeometry example", 10, ofGetHeight()-20);
}
//--------------------------------------------------------------
void testApp::keyPressed(int key){
if(key == OF_KEY_RIGHT)
{
exampleIndex += (exampleIndex>NUM_FUNCTIONS-2)?0:1;
}
else if(key==OF_KEY_LEFT){
exampleIndex -= (exampleIndex<=0)?0:1;
}
}
//--------------------------------------------------------------
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){
}
//--------------------------------------------------------------
void testApp::mouseEntered(int x, int y){
}
//--------------------------------------------------------------
void testApp::mouseExited(int x, int y){
}
//--------------------------------------------------------------
void testApp::windowResized(int w, int h){
}
//--------------------------------------------------------------
void testApp::gotMessage(ofMessage msg){
}
//--------------------------------------------------------------
void testApp::dragEvent(ofDragInfo dragInfo){
}