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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); }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(25); ofSetWindowTitle("openFrameworks"); ofBackground(39); ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD); ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWindowSize() * 0.5); auto radius = 140; ofColor color; for (int y = -240; y <= 240; y += 240) { auto deg_param = 120; auto deg_start = ofMap(y, -280, 280, 0, 360); for (int deg = deg_start; deg <= deg_start + 90; deg += 15) { color.setHsb(ofMap(deg, deg_start, deg_start + 90, 0, 255), 200, 200); ofSetColor(color); vector<glm::vec2> vertices; auto tmp_deg = deg + ofGetFrameNum() * 3; for (int x = -220; x <= 220; x += 220) { auto vertex = glm::vec2(x, y) + this->make_point(radius, ofMap(tmp_deg % 360, 0, 360, 0, 100)); vertices.push_back(vertex); tmp_deg += deg_param; } ofNoFill(); ofSetLineWidth(1.5); ofBeginShape(); ofVertices(vertices); ofEndShape(); ofFill(); for (auto& vertex : vertices) { ofDrawCircle(vertex, 3); } ofNoFill(); ofSetLineWidth(0.5); for (int x = -220; x <= 220; x += 220) { ofDrawRectangle(x, y, radius, radius); } } for (int deg = deg_start + 180; deg <= deg_start + 180 + 90; deg += 15) { color.setHsb(ofMap(deg, deg_start + 180, deg_start + 180+ 90, 0, 255), 200, 200); ofSetColor(color); vector<glm::vec2> vertices; auto tmp_deg = deg + ofGetFrameNum() * 3; for (int x = -220; x <= 220; x += 220) { auto vertex = glm::vec2(x, y) + this->make_point(radius, ofMap(tmp_deg % 360, 0, 360, 0, 100)); vertices.push_back(vertex); tmp_deg += deg_param; } ofNoFill(); ofSetLineWidth(1.5); ofBeginShape(); ofVertices(vertices); ofEndShape(); ofFill(); for (auto& vertex : vertices) { ofDrawCircle(vertex, 3); } } } /* int start = 50; if (ofGetFrameNum() > start) { ostringstream os; os << setw(4) << 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); } } */ } //-------------------------------------------------------------- glm::vec2 ofApp::make_point(int len, int param) { 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()); } |