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[ About ]
文字に上にポイントを置いて、近づいたら線を引く。
Near points on characters.
[ Source ]
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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) {}; ofMesh mesh, draw_mesh; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openFrameworks"); ofBackground(239); ofSetLineWidth(2); this->mesh.setMode(OF_PRIMITIVE_LINES); ofFbo fbo; fbo.allocate(ofGetWidth(), ofGetHeight()); fbo.begin(); ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5); ofClear(0); ofSetColor(0); ofTrueTypeFont font; font.loadFont("fonts/Kazesawa-Bold.ttf", 320, true, true, true); font.drawString("NE", font.stringWidth("NE") * -0.5, font.stringHeight("NE") * -0.05); font.drawString("AR", font.stringWidth("AR") * -0.5, font.stringHeight("AR") * 1.05); fbo.end(); auto span = 15; ofPixels pixels; fbo.readToPixels(pixels); for (int x = 0; x < fbo.getWidth(); x += span) { for (int y = 0; y < fbo.getHeight(); y += span) { ofColor color = pixels.getColor(x, y); if (color != ofColor(0, 0)) { this->mesh.addVertex(glm::vec3(x, y, 0)); } } } ofSetColor(39); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); this->draw_mesh = this->mesh; for (auto& vertex : this->draw_mesh.getVertices()) { vertex.x += ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -5, 5); vertex.y += ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -5, 5); } for (int i = 0; i < this->draw_mesh.getVertices().size(); i++) { auto location = this->draw_mesh.getVertex(i); vector<int> near_index_list; for (int k = 0; k < this->draw_mesh.getVertices().size(); k++) { if (i == k) { continue; } auto other = this->draw_mesh.getVertex(k); auto distance = glm::distance(location, other); if (distance < 16.5) { this->draw_mesh.addIndex(i); this->draw_mesh.addIndex(k); } } } } //-------------------------------------------------------------- void ofApp::draw() { this->draw_mesh.draw(); for (int i = 0; i < this->draw_mesh.getVertices().size(); i++) { ofDrawCircle(this->draw_mesh.getVertex(i), 3); } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |