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トーラス座標を180度対線で結んでみました。
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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) {}; ofEasyCam cam; ofPoint make_point(float radius, float small_radius, float deg, float small_deg); }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofBackground(239); ofSetWindowTitle("Insta"); ofEnableDepthTest(); ofSetColor(39, 139); } //-------------------------------------------------------------- void ofApp::update() { } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateX(180); float radius = 350; float small_radius = 50; for (int deg = 0; deg <= 360; deg += 1) { ofPoint p1 = make_point(radius, small_radius, deg, deg * 8 + ofGetFrameNum()); ofPoint p2 = make_point(radius, small_radius, deg + 180, deg * 8 + ofGetFrameNum()); ofDrawLine(p1, p2); ofDrawSphere(p1, 2); } this->cam.end(); } //-------------------------------------------------------------- ofPoint ofApp::make_point(float radius, float small_radius, float deg, float small_deg) { float x_1 = radius * cos(deg * DEG_TO_RAD); float y_1 = radius * sin(deg * DEG_TO_RAD); float x_2 = small_radius * cos(small_deg * DEG_TO_RAD) * cos(deg * DEG_TO_RAD); float y_2 = small_radius * cos(small_deg * DEG_TO_RAD) * sin(deg * DEG_TO_RAD); float x = x_1 + x_2; float y = y_1 + y_2; float z = small_radius * sin(small_deg * DEG_TO_RAD); return ofPoint(x, y, z); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |