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ネオン六角形。
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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) {}; float radius; vector<vector<glm::vec2>> hexagon_list; vector<ofColor> color_list; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(25); ofSetWindowTitle("openframeworks"); ofBackground(39); ofSetLineWidth(2); ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD); this->radius = 14; vector<glm::vec2> start_location_list; auto x_span = this->radius * sqrt(3); auto flg = true; for (float y = 0; y < ofGetHeight() - this->radius; y += this->radius * 1.5) { for (float x = x_span * 4; x <= ofGetWidth() - x_span * 4; x += x_span) { glm::vec2 location; if (flg) { location = glm::vec2(x, y); } else { location = glm::vec2(x + (this->radius * sqrt(3) / 2), y); } start_location_list.push_back(location); } flg = !flg; } ofColor color; for (int i = 0; i < 64; i++) { color.setHsb(ofMap(i, 0, 64, 0, 255), 200, 255); int r = ofRandom(start_location_list.size()); auto log_list = vector<glm::vec2>(); log_list.push_back(start_location_list[r]); this->hexagon_list.push_back(log_list); this->color_list.push_back(color); } } //-------------------------------------------------------------- void ofApp::update() { if (ofGetFrameNum() % 2 == 0) { auto x_span = this->radius * sqrt(3); auto span = this->radius * sqrt(3); for (auto& log_list : this->hexagon_list) { int r = ofRandom(6); int deg_start = r * 60; for (int deg = deg_start; deg < deg_start + 360; deg += 60) { auto tmp_location = log_list.back() + glm::vec2(span * cos(deg * DEG_TO_RAD), span * sin(deg * DEG_TO_RAD)); if (tmp_location.x < x_span * 4 || tmp_location.x >= ofGetWidth() - x_span * 4 || tmp_location.y < 0 || tmp_location.y > ofGetHeight() + this->radius) { continue; } log_list.push_back(tmp_location); break; } while (log_list.size() > 10) { log_list.erase(log_list.begin()); } } } } //-------------------------------------------------------------- void ofApp::draw() { int color_index = 0; for (auto& log_list : this->hexagon_list) { for (int i = 0; i < log_list.size(); i++) { vector<glm::vec2> vertices_1; for (auto deg = 90; deg < 450; deg += 60) { vertices_1.push_back(log_list[i] + glm::vec2(this->radius * ((i + 1) * 0.1) * cos(deg * DEG_TO_RAD), this->radius * ((i + 1) * 0.1) * sin(deg * DEG_TO_RAD))); } ofSetColor(ofColor(this->color_list[color_index], 128)); ofBeginShape(); ofVertices(vertices_1); ofEndShape(true); } color_index++; } /* // ffmpeg -i img_%04d.jpg aaa.mp4 int start = 500; if (ofGetFrameNum() > start) { std::ostringstream os; os << std::setw(4) << std::setfill('0') << ofGetFrameNum() - start; ofImage image; image.grabScreen(0, 0, ofGetWidth(), ofGetHeight()); image.saveImage("image/cap/img_" + os.str() + ".jpg"); if (ofGetFrameNum() - start >= 25 * 20) { std::exit(1); } } */ } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |
[ Link ]
https://github.com/junkiyoshi/DoodleDeProgramming/tree/b08cbaf3e5aeea9c49e7e40fd68686a286564212