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変化量を円で表示。
The amount of change is displayed as a circle.
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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) {}; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openframeworks"); ofBackground(0); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWindowSize() * 0.5); auto radius = 150; auto span = 1; for (auto deg = 0; deg < 360; deg += 6) { auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)); auto left = glm::vec2(radius * cos((deg + span * 0.5) * DEG_TO_RAD), radius * sin((deg + span * 0.5) * DEG_TO_RAD)); auto right = glm::vec2(radius * cos((deg - span * 0.5) * DEG_TO_RAD), radius * sin((deg - span * 0.5) * DEG_TO_RAD)); auto noise_radius = ofMap(ofNoise(glm::vec3(location * 0.1, ofGetFrameNum() * 0.025)), 0, 1, radius * 0.2, radius * 0.8); auto noise_location = glm::vec2(noise_radius * cos(deg * DEG_TO_RAD), noise_radius * sin(deg * DEG_TO_RAD)); ofSetColor(255); ofBeginShape(); ofVertex(left); ofVertex(noise_location + left); ofVertex(noise_location + right); ofVertex(right); ofEndShape(true); auto circle_radius = ofMap(ofNoise(glm::vec3(location * 0.1, ofGetFrameNum() * 0.025)), 0, 1, 0, radius * 0.8); auto prev_circle_radius = ofMap(ofNoise(glm::vec3(location * 0.1, (ofGetFrameNum() - 3) * 0.025)), 0, 1, 0, radius * 0.8); auto gap = abs(prev_circle_radius - circle_radius); auto alpha = gap < 0.5 ? 0 : ofMap(gap, 0.5, 6, 0, 255); ofSetColor(255, alpha); ofDrawCircle(glm::vec2(circle_radius * cos(deg * DEG_TO_RAD), circle_radius * sin(deg * DEG_TO_RAD)), 2); } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |