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36本の線で構成された円たち
The circles made up of 36 lines.
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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) {}; // make method ofPoint make_rect_point(float len, int deg, int z = 0); }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("Insta"); ofBackground(39); ofSetColor(239); ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { int circle_radius = 72; int rect_len = 144; for (int x = rect_len / 2; x <= ofGetWidth() - rect_len / 2; x += rect_len) { for (int y = rect_len / 2; y <= ofGetHeight() - rect_len / 2; y += rect_len) { for (int deg = 0; deg < 360; deg += 10) { ofPoint noise_point = ofPoint(circle_radius * cos(deg * DEG_TO_RAD) + x, circle_radius * sin(deg * DEG_TO_RAD) + y); float noise_value = ofMap(ofNoise(noise_point.x * 0.005, noise_point.y * 0.005, ofGetFrameNum() * 0.005), 0, 1, 0.2, 1.2); ofPushMatrix(); ofTranslate(x, y); ofPoint circle_point = ofPoint(circle_radius * noise_value * cos(deg * DEG_TO_RAD), circle_radius * noise_value * sin(deg * DEG_TO_RAD)); ofPoint rect_point = this->make_rect_point(rect_len, deg); ofDrawLine(circle_point, rect_point); ofDrawCircle(circle_point, 2); ofPopMatrix(); } } } } //-------------------------------------------------------------- ofPoint ofApp::make_rect_point(float len, int deg, int z) { int half_len = len * 0.5; int param = (deg + 45) / 90; ofPoint point; switch (param % 4) { case 0: return ofPoint(half_len, ofMap((deg + 45) % 90, 0, 89, -half_len, half_len), z); case 1: return ofPoint(ofMap((deg + 45) % 90, 0, 89, half_len, -half_len), half_len, z); case 2: return ofPoint(-half_len, ofMap((deg + 45) % 90, 0, 89, half_len, -half_len), z); case 3: return ofPoint(ofMap((deg + 45) % 90, 0, 89, -half_len, half_len), -half_len, z); default: return ofPoint(0, 0, 0); } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |