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大きい円と小さい円の点同士で線を引き、小さい円を回転させる
Draw line from circle point to circle point.
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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(60); ofSetWindowTitle("openframeworks"); ofBackground(239); ofSetColor(39); ofSetLineWidth(1.5); } //-------------------------------------------------------------- void ofApp::update() { } //-------------------------------------------------------------- void ofApp::draw() { int span = 144; for (int x = span * 0.5; x <= ofGetWidth() - span * 0.5; x += span) { for (int y = span * 0.5; y <= ofGetWidth() - span * 0.5; y += span) { ofPushMatrix(); ofTranslate(x, y); int big_radius = 60; int small_radius = 40; int deg_gap = ofMap(ofNoise(x * 0.005, y * 0.005, ofGetFrameNum() * 0.005), 0, 1, 0, 360); for (int deg = 0; deg < 360; deg += 10) { auto big_location = glm::vec2(big_radius * cos(deg * DEG_TO_RAD), big_radius * sin(deg * DEG_TO_RAD)); auto small_location = glm::vec2(small_radius * cos((deg + deg_gap) * DEG_TO_RAD), small_radius * sin((deg + deg_gap) * DEG_TO_RAD)); ofDrawCircle(big_location, 2); ofDrawCircle(small_location, 2); ofDrawLine(big_location, small_location); } ofPopMatrix(); } } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |