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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 windowResized(int w, int h) {}; void dragEvent(ofDragInfo dragInfo) {}; void gotMessage(ofMessage msg) {}; float radius; vector<glm::vec2> base_location_list; vector<ofColor> color_list; vector<vector<glm::vec2>> log_list; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(25); ofSetWindowTitle("openFrameworks"); ofBackground(239); ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_SUBTRACT); ofNoFill(); this->radius = 320; ofColor color; for (int i = 0; i < 15; i++) { for (int deg = 0; deg < 360; deg += 1) { auto location = glm::vec2(this->radius * cos(deg * DEG_TO_RAD), this->radius * sin(deg * DEG_TO_RAD)); this->base_location_list.push_back(location); color.setHsb(ofMap(i, 0, 15, 0, 150), 255, 255, 100); this->color_list.push_back(color); } } } //-------------------------------------------------------------- void ofApp::update() { this->log_list.clear(); for (int i = 0; i < this->base_location_list.size(); i++) { vector<glm::vec2> log; log.push_back(this->base_location_list[i]); this->log_list.push_back(log); } int step = 5; for (int i = 0; i < this->log_list.size(); i++) { int k = 0; while (true) { auto deg = ofMap(ofNoise(glm::vec4(this->color_list[i].getHue(), this->log_list[i].back() * 0.0005, ofGetFrameNum() * 0.01 + k * 0.003)), 0, 1, -90, 90); auto next = this->log_list[i].back() + glm::vec2(step * cos(deg * DEG_TO_RAD), step * sin(deg * DEG_TO_RAD)); if (glm::distance(glm::vec2(0, 0), next) < this->radius) { this->log_list[i].push_back(next); } else { break; } k++; } } } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5); for (int i = 0; i < this->log_list.size(); i++) { ofRotate(2); if (glm::distance(this->log_list[i][0], this->log_list[i][this->log_list[i].size() - 1]) > this->radius * 1.25) { continue; } ofSetColor(this->color_list[i]); ofBeginShape(); ofVertices(this->log_list[i]); ofEndShape(); } /* 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()); } |