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円周上の円
Circle on circumference.
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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) {}; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openFrameworks"); ofBackground(239); ofSetColor(39); ofNoFill(); ofSetLineWidth(2); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { int coordinate_span = 144; int radius = 40; float span = (2 * PI * radius) / 360; for (int x = coordinate_span * 0.5; x < ofGetWidth(); x += coordinate_span) { for (int y = coordinate_span * 0.5; y < ofGetHeight(); y += coordinate_span) { int small_circle_deg_size = ofMap(ofNoise(ofRandom(360), ofGetFrameNum() * 0.008), 0, 1, 10, 120); int small_radius = span * small_circle_deg_size * 0.35; int small_deg = ofMap(ofNoise(ofRandom(360), ofGetFrameNum() * 0.003), 0, 1, 0, 720); int deg_start = small_deg + small_circle_deg_size * 0.5; int deg_end = deg_start + 360 - small_circle_deg_size; vector<glm::vec2> vertices; for (int deg = deg_start; deg <= deg_end; deg++) { vertices.push_back(glm::vec2(x, y) + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD))); } ofBeginShape(); ofVertices(vertices); ofEndShape(); ofDrawCircle(glm::vec2(x, y) + glm::vec2(radius * cos(small_deg * DEG_TO_RAD), radius * sin(small_deg * DEG_TO_RAD)), small_radius); } } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |