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回転アルファベット。
Rotating alphabet.
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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) {}; vector<ofPath> chara_path; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openframeworks"); ofBackground(239); ofSetColor(39); ofTrueTypeFont font; font.loadFont("fonts/Kazesawa-Bold.ttf", 100, true, true, true); for (char c = 'A'; c <= 'Z'; c++) { this->chara_path.push_back(font.getCharacterAsPoints(c, true, false)); } } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5); ofNoFill(); auto outer = 0; for (auto radius = 80; radius < ofGetWidth(); radius++) { auto deg_span = 14; auto font_size = (2 * PI * radius / 360) * deg_span; if (outer < radius - font_size * 0.5) { ofGetFill() ? ofNoFill() : ofFill(); ofRotate(ofGetFrameNum() * 0.1); int char_index = 0; for (auto deg = 0; deg < 360; deg += deg_span) { auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)); char_index = (char_index + 1) % this->chara_path.size(); ofPushMatrix(); ofTranslate(location); ofRotate(deg + 90); auto outline = this->chara_path[char_index].getOutline(); ofBeginShape(); for (int line_index = 0; line_index < outline.size(); line_index++) { if (line_index != 0) { ofNextContour(true); } auto vertices = outline[line_index].getVertices(); for (int vertices_index = 0; vertices_index < vertices.size(); vertices_index++) { auto point = (vertices[vertices_index] / 100 * font_size) + glm::vec2(font_size * -0.5, font_size * 0.5); ofVertex(point); } } ofEndShape(true); ofPopMatrix(); } outer = radius + font_size * 0.5; } } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |