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ベジェ曲線でランダムな点を結ぶ。
Connect random points with Bezier curves.
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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) {}; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openFrameworks"); ofBackground(255); ofSetColor(0); ofSetLineWidth(2); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { vector<glm::vec2> location_list; vector<float> deg_list; vector<bool> flag_list; vector<int> near_index_list; for (int i = 0; i < 65; i++) { location_list.push_back(glm::vec2(ofRandom(50, ofGetWidth() - 50), ofRandom(50, ofGetHeight() - 50))); deg_list.push_back(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.008), 0, 1, -360, 360)); flag_list.push_back(false); } for (int i = 0; i < location_list.size(); i++) { ofNoFill(); for (int k = i + 1; k < location_list.size(); k++) { auto distance = glm::distance(location_list[i], location_list[k]); if (distance < 80) { auto handle_1 = location_list[i] + glm::vec2(50 * cos(deg_list[i] * DEG_TO_RAD), 50 * sin(deg_list[i] * DEG_TO_RAD)); auto handle_2 = location_list[k] + glm::vec2(50 * cos(deg_list[k] * DEG_TO_RAD), 50 * sin(deg_list[k] * DEG_TO_RAD)); ofBeginShape(); ofVertex(location_list[i]); ofBezierVertex(handle_1, handle_2, location_list[k]); ofEndShape(); flag_list[i] = true; flag_list[k] = true; } } ofFill(); ofDrawCircle(location_list[i], 5); } ofNoFill(); for (int i = 0; i < location_list.size(); i++) { if (flag_list[i] == false) { float min_distance = ofGetWidth() + ofGetHeight(); int min_index = 0; for (int k = 0; k < location_list.size(); k++) { if (i == k) { continue; } auto distance = glm::distance(location_list[i], location_list[k]); if (distance < min_distance) { min_distance = distance; min_index = k; } } auto handle_1 = location_list[i] + glm::vec2(50 * cos(deg_list[i] * DEG_TO_RAD), 50 * sin(deg_list[i] * DEG_TO_RAD)); auto handle_2 = location_list[min_index] + glm::vec2(50 * cos(deg_list[min_index] * DEG_TO_RAD), 50 * sin(deg_list[min_index] * DEG_TO_RAD)); ofBeginShape(); ofVertex(location_list[i]); ofBezierVertex(handle_1, handle_2, location_list[min_index]); ofEndShape(); } } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |