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円のフレーム。
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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) {}; glm::vec2 make_point(int radius, int deg); }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(25); ofSetWindowTitle("openFrameworks"); ofBackground(39); ofSetLineWidth(1.25); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWindowSize() * 0.5); ofRotate(45); ofColor color; for (int k = 0; k < 360; k++) { auto radius = 350; auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000)); auto deg = ofGetFrameNum() * 0.72 + k; auto base_location = this->make_point(radius, deg); auto location = glm::vec2( ofMap(ofNoise(noise_seed.x, (k + ofGetFrameNum()) * 0.005), 0, 1, -40, 40), ofMap(ofNoise(noise_seed.y, (k + ofGetFrameNum()) * 0.005), 0, 1, -40, 40)); location += base_location; color.setHsb(ofMap(k, 0, 360, 0, 255), 130, 255); auto size = ofMap(k, 0, 360, 0, 25); ofSetColor(ofColor(39)); ofFill(); ofDrawCircle(location, size); ofSetColor(color); ofNoFill(); ofDrawCircle(location, size); } /* // ffmpeg -i img_%04d.jpg aaa.mp4 int start = 30; if (ofGetFrameNum() > start) { std::ostringstream os; os << std::setw(4) << std::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); } } */ } //-------------------------------------------------------------- glm::vec2 ofApp::make_point(int radius, int deg) { deg = deg % 360; int deg_a = (deg / 90) * 90; int deg_b = deg_a + 90; int remainder = deg % 90; int diff = deg - deg_a; auto point_a = glm::vec2(radius * cos(deg_a * DEG_TO_RAD), radius * sin(deg_a * DEG_TO_RAD)); auto point_b = glm::vec2(radius * cos(deg_b * DEG_TO_RAD), radius * sin(deg_b * DEG_TO_RAD)); auto distance = point_b - point_a; return point_a + (distance / 90) * diff; } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |
[ Link ]
https://github.com/junkiyoshi/DoodleDeProgramming/tree/2350a6651564b51eaa3623f660957dddc248b398