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正方形の線を結ぶ。
Connect the square lines.
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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 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(30); ofSetWindowTitle("openFrameworks"); ofBackground(0); ofSetLineWidth(2); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWindowSize() * 0.5); int span = 200; for (int x = -span; x <= span; x += span) { for (int y = -span; y <= span; y += span) { ofPushMatrix(); ofTranslate(x, y); for (int len = 50; len < 180; len += 30) { auto noise_seed = ofRandom(1000); for (int param = 100; param < 200; param += 1) { auto location = this->make_point(len, param); auto next_location = this->make_point(len, param + 1); auto noise_value = ofNoise(glm::vec4(noise_seed, this->make_point(120, param) * 0.0085, ofGetFrameNum() * 0.015)); auto prev_noise_value = ofNoise(glm::vec4(noise_seed, this->make_point(120, param - 1) * 0.0085, ofGetFrameNum() * 0.015)); auto next_noise_value = ofNoise(glm::vec4(noise_seed, this->make_point(120, param + 1) * 0.0085, ofGetFrameNum() * 0.015)); if (noise_value > 0.5) { ofSetColor(255); ofDrawLine(location, next_location); if (prev_noise_value <= 0.5) { ofFill(); ofDrawCircle(location, 4); } if (next_noise_value <= 0.5) { ofFill(); ofSetColor(0); ofDrawCircle(next_location, 4); ofNoFill(); ofSetColor(255); ofDrawCircle(next_location, 4); } } } } ofPopMatrix(); } } } //-------------------------------------------------------------- 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()); } |