[ Video ]
[ About ]
4つの円を結ぶ。
Connecting circles.
[ Source ]
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 |
#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) {}; ofMesh mesh; }; |
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 |
#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openframeworks"); ofBackground(0); ofSetLineWidth(2); this->mesh.setMode(OF_PRIMITIVE_LINES); } //-------------------------------------------------------------- void ofApp::update() { this->mesh.clear(); auto radius = 100; auto span = 240; int deg_start = ofGetFrameNum() % 360; for (auto deg = deg_start; deg < deg_start + 360; deg += 10) { this->mesh.addVertex(glm::vec3(span, 0, 0) + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0)); this->mesh.addVertex(glm::vec3(0, -span, 0) + glm::vec3(radius * cos((deg + 90) * DEG_TO_RAD), radius * sin((deg + 90) * DEG_TO_RAD), 0)); this->mesh.addVertex(glm::vec3(-span, 0, 0) + glm::vec3(radius * cos((deg + 180) * DEG_TO_RAD), radius * sin((deg + 180) * DEG_TO_RAD), 0)); this->mesh.addVertex(glm::vec3(0, span, 0) + glm::vec3(radius * cos((deg + 270) * DEG_TO_RAD), radius * sin((deg + 270) * DEG_TO_RAD), 0)); ofColor color; for (auto i = 0; i < 4; i++) { color.setHsb(ofMap((deg + (360 - deg_start) + i * 180) % 360, 0, 360, 0, 255), 200, 255); this->mesh.addColor(color); } auto index = this->mesh.getVertices().size() - 4; this->mesh.addIndex(index); this->mesh.addIndex(index + 1); this->mesh.addIndex(index + 1); this->mesh.addIndex(index + 2); this->mesh.addIndex(index + 2); this->mesh.addIndex(index + 3); this->mesh.addIndex(index + 3); this->mesh.addIndex(index + 0); } } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5); this->mesh.draw(); for (int i = 0; i < this->mesh.getVertices().size(); i++) { ofSetColor(this->mesh.getColor(i)); ofDrawCircle(this->mesh.getVertex(i), 4); } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |