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円から円。
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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) {}; ofEasyCam cam; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openFrameworks"); ofBackground(39); ofSetColor(255); ofSetLineWidth(1.5); ofNoFill(); } //-------------------------------------------------------------- void ofApp::update() { } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); float base_radius = 230; float radius = 50; for (int base_deg = 0; base_deg < 360; base_deg += 6) { ofPushMatrix(); ofRotateY(base_deg); int deg_start = base_deg * 3 + ofGetFrameNum() * 6; for (int deg = deg_start; deg < deg_start + 120; deg += 1) { ofSetColor(255, ofMap(deg, deg_start, deg_start + 120, 0, 255)); auto location = glm::vec3(0, radius * sin(deg * DEG_TO_RAD), base_radius + radius * cos(deg * DEG_TO_RAD)); auto next = glm::vec3(0, radius * sin((deg + 1) * DEG_TO_RAD), base_radius + radius * cos((deg + 1) * DEG_TO_RAD)); ofDrawLine(location, next); } ofDrawSphere(glm::vec3(0, radius * sin((deg_start + 120) * DEG_TO_RAD), base_radius + radius * cos((deg_start + 120) * DEG_TO_RAD)), 2); ofPopMatrix(); } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |