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#pragma once #include "ofMain.h" class ofApp : 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 mouseEntered(int x, int y) {}; void mouseExited(int x, int y) {}; void windowResized(int w, int h) {}; void dragEvent(ofDragInfo dragInfo) {}; void gotMessage(ofMessage msg) {}; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(25); ofSetWindowTitle("openframeworks"); ofBackground(239); ofSetColor(0); ofNoFill(); ofSetLineWidth(2); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { float radius = 60; for (float y = radius * 1.5; y <= 720 - radius * 1.5; y += radius) { for (float x = radius * 1.5; x <= 720 - radius * 1.5; x += radius) { glm::vec3 location; location = glm::vec3(x, y, 0); ofPushMatrix(); ofTranslate(location); ofRotate(45); for (int draw_radius = radius; draw_radius >= radius; draw_radius -= 8) { auto deg_start = ofRandom(360) + ofGetFrameNum() * 1.44; auto deg_len = 180; auto deg_end = deg_start + deg_len; ofBeginShape(); for (int deg = deg_start; deg <= deg_end; deg += 1) { int param = deg % 90; glm::vec2 location; if (param == 0) { location = glm::vec2(draw_radius * cos(deg * DEG_TO_RAD), draw_radius * sin(deg * DEG_TO_RAD)); } else { int p1 = deg / 90; int p2 = p1 + 1; auto p1_deg = p1 * 90; auto p2_deg = p2 * 90; auto source = glm::vec2(draw_radius * cos(p1_deg * DEG_TO_RAD), draw_radius * sin(p1_deg * DEG_TO_RAD)); auto target = glm::vec2(draw_radius * cos(p2_deg * DEG_TO_RAD), draw_radius * sin(p2_deg * DEG_TO_RAD)); location = source + ((target - source) / 90 * param); } ofVertex(location); } ofEndShape(false); } ofPopMatrix(); } } /* int start = 50; if (ofGetFrameNum() > start) { ostringstream os; os << setw(4) << setfill('0') << ofGetFrameNum() - start; ofImage image; image.grabScreen(0, 0, ofGetWidth(), ofGetHeight()); image.saveImage("image/cap/img_" + os.str() + ".jpg"); if (ofGetFrameNum() - start >= 25 * 20) { std::exit(1); } } */ } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |