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くるくるマーク
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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::vec2 make_point(int len, int param, int width = 0); }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openframeworks"); ofBackground(239); ofSetColor(39); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { auto size = 144; auto len = 120; auto span = 1; int param_start = ofGetFrameNum(); for (int x = size * 0.5; x < ofGetWidth(); x += size) { for (int y = size * 0.5; y < ofGetHeight(); y += size) { param_start += 10; ofPushMatrix(); ofTranslate(x, y); vector<glm::vec2> vertices, sub_vertices; for (int i = 1; i <= 12; i++) { vertices.clear(); sub_vertices.clear(); for (int param = param_start; param < param_start + span * i; param++) { vertices.push_back(this->make_point(len, param)); sub_vertices.push_back((this->make_point(len - 35, param))); } param_start += i * span; reverse(sub_vertices.begin(), sub_vertices.end()); ofBeginShape(); ofVertices(vertices); ofVertices(sub_vertices); ofEndShape(true); } ofPopMatrix(); } } } //-------------------------------------------------------------- glm::vec2 ofApp::make_point(int len, int param, int width) { param = param % 100; if (param < 25) { return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5); } else if (param < 50) { return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5)); } else if (param < 75) { return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5); } else { return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5)); } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |