#include "testApp.h" //-------------------------------------------------------------- void testApp::setup(){ counter = 0; ofSetCircleResolution(50); ofBackground(255,255,255); bSmooth = false; ofSetWindowTitle("graphics example"); ofSetFrameRate(60); // if vertical sync is off, we can go a bit fast... this caps the framerate at 60fps. } //-------------------------------------------------------------- void testApp::update(){ counter = counter + 0.033f; } //-------------------------------------------------------------- void testApp::draw(){ //--------------------------- circles //let's draw a circle: ofSetColor(255,130,0); float radius = 50 + 10 * sin(counter); ofFill(); // draw "filled shapes" ofCircle(100,400,radius); // now just an outline ofNoFill(); ofSetColor(0xCCCCCC); ofCircle(100,400,80); // use the bitMap type // note, this can be slow on some graphics cards // because it is using glDrawPixels which varies in // speed from system to system. try using ofTrueTypeFont // if this bitMap type slows you down. ofSetColor(0x000000); ofDrawBitmapString("circle", 75,500); //--------------------------- rectangles ofFill(); for (int i = 0; i < 200; i++){ ofSetColor((int)ofRandom(0,255),(int)ofRandom(0,255),(int)ofRandom(0,255)); ofRect(ofRandom(250,350),ofRandom(350,450),ofRandom(10,20),ofRandom(10,20)); } ofSetColor(0x000000); ofDrawBitmapString("rectangles", 275,500); //--------------------------- transparency ofSetColor(0x00FF33); ofRect(400,350,100,100); // alpha is usually turned off - for speed puposes. let's turn it on! ofEnableAlphaBlending(); ofSetColor(255,0,0,127); // red, 50% transparent ofRect(450,430,100,33); ofSetColor(255,0,0,(int)(counter * 10.0f) % 255); // red, variable transparent ofRect(450,370,100,33); ofDisableAlphaBlending(); ofSetColor(0x000000); ofDrawBitmapString("transparency", 410,500); //--------------------------- lines // a bunch of red lines, make them smooth if the flag is set if (bSmooth){ ofEnableSmoothing(); } ofSetColor(0xFF0000); for (int i = 0; i < 20; i++){ ofLine(600,300 + (i*5),800, 250 + (i*10)); } if (bSmooth){ ofDisableSmoothing(); } ofSetColor(0x000000); ofDrawBitmapString("lines\npress 's' to toggle smoothness", 600,500); } //-------------------------------------------------------------- void testApp::keyPressed (int key){ if (key == 's'){ bSmooth = !bSmooth; } } //-------------------------------------------------------------- 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::resized(int w, int h){ }