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トーラスの中にある座標を結ぶ。
Connect point of torus.
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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) {}; glm::vec3 make_point(float R, float r, float u, float v); ofEasyCam cam; ofMesh mesh; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openframeworks"); ofBackground(0); ofEnableDepthTest(); this->mesh.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); vector<glm::vec3> location_list; vector<float> min_distance_list; vector<vector<int>> pair_list; for (int i = 0; i < 2000; i++) { auto R = 300; auto r = ofRandom(30, 80); auto u = ofRandom(360) + ofGetFrameNum() * ofRandom(0.25, 1.0) * (ofRandom(1) < 1 ? 1 : -1); auto v = ofRandom(360) + ofGetFrameNum() * ofRandom(0.25, 1.0) * (ofRandom(1) < 1 ? 1 : -1); location_list.push_back(this->make_point(R, r, u, v)); min_distance_list.push_back(20); vector<int> pair; pair_list.push_back(pair); } this->mesh.clear(); for (int i = 0; i < location_list.size(); i++) { for (int k = 0; k < location_list.size(); k++) { if (i == k) { continue; } auto distance = glm::distance(location_list[i], location_list[k]); if (distance < 20) { pair_list[i].push_back(k); if (min_distance_list[i] > distance) { min_distance_list[i] = distance; } } } } this->mesh.addVertices(location_list); for (int i = 0; i < location_list.size(); i++) { this->mesh.addColor(ofColor(255, ofMap(min_distance_list[i], 0, 20, 255, 0))); for (int k = 0; k < pair_list[i].size(); k++) { this->mesh.addIndex(i); this->mesh.addIndex(pair_list[i][k]); } } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); this->mesh.drawWireframe(); for (int i = 0; i < this->mesh.getNumVertices(); i++) { ofSetColor(this->mesh.getColor(i)); ofDrawSphere(this->mesh.getVertex(i), 3); } this->cam.end(); } //-------------------------------------------------------------- glm::vec3 ofApp::make_point(float R, float r, float u, float v) { // 数学デッサン教室 描いて楽しむ数学たち P.31 u *= DEG_TO_RAD; v *= DEG_TO_RAD; auto x = (R + r * cos(u)) * cos(v); auto y = (R + r * cos(u)) * sin(v); auto z = r * sin(u); return glm::vec3(x, y, z); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |