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線の円
Circle of line.
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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) {}; void draw_noise_circle(glm::vec2 location, float radius); }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openframeworks"); ofBackground(239); ofSetColor(39); ofEnableDepthTest(); } //-------------------------------------------------------------- void ofApp::update() { } //-------------------------------------------------------------- void ofApp::draw() { int span = 240; for (int x = span * 0.5; x <= ofGetWidth() - span * 0.5; x += span) { for (int y = span * 0.5; y <= ofGetHeight() - span * 0.5; y += span) { this->draw_noise_circle(glm::vec2(x, y), span * 0.3); } } } //-------------------------------------------------------------- void ofApp::draw_noise_circle(glm::vec2 location, float radius) { ofPushMatrix(); ofTranslate(location); float lenght = radius * 0.3; for (int deg = 0; deg < 360; deg += 10) { glm::vec2 noise_point = location + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)); float tmp_radius = radius + ofMap(ofNoise(noise_point.x * 0.015, noise_point.y * 0.015, ofGetFrameNum() * 0.03), 0, 1, -lenght, lenght); glm::vec2 start = glm::vec2((tmp_radius - lenght) * cos(deg * DEG_TO_RAD), (tmp_radius - lenght) * sin(deg * DEG_TO_RAD)); glm::vec2 end = glm::vec2((tmp_radius + lenght) * cos(deg * DEG_TO_RAD), (tmp_radius + lenght) * sin(deg * DEG_TO_RAD)); ofDrawLine(start, end); ofDrawCircle(start, 3); ofDrawCircle(end, 3); } ofPopMatrix(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |