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文字の輪郭からエッジに向かって移動する線。
A line that moves from the outline of a character to the edge.
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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) {}; vector<glm::vec2> base_location_list; vector<vector<glm::vec2>> log_list; float font_size; ofTrueTypeFont font; string word; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openFrameworks"); ofBackground(239); ofSetColor(148); ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_MULTIPLY); this->font_size = 80; this->font.loadFont("fonts/Kazesawa-Bold.ttf", this->font_size, true, true, true); } //-------------------------------------------------------------- void ofApp::update() { this->base_location_list.clear(); this->word = "HOPE"; auto path_list = font.getStringAsPoints(this->word, true, false); for (auto& path : path_list) { vector<ofPolyline> outline = path.getOutline(); for (int outline_index = 0; outline_index < outline.size(); outline_index++) { outline[outline_index] = outline[outline_index].getResampledByCount(30); auto vertices = outline[outline_index].getVertices(); for (int vertices_index = 0; vertices_index < vertices.size(); vertices_index++) { auto location = glm::vec3(vertices[vertices_index].x - this->font.stringWidth(this->word) * 0.5, vertices[vertices_index].y + this->font.stringHeight(this->word) * 0.25, 0); this->base_location_list.push_back(location); } } } this->log_list.clear(); int limit = 300; for (int i = 0; i < this->base_location_list.size(); i++) { vector<glm::vec2> log; log.push_back(glm::vec2(this->base_location_list[i])); this->log_list.push_back(log); } int step = 1; for (int i = 0; i < this->log_list.size(); i++) { int k = 0; while (true) { auto deg = ofMap(ofNoise(glm::vec3(this->log_list[i].back() * 0.0035, ofGetFrameNum() * 0.0005 + k * 0.0005)), 0, 1, -360, 360); auto next = this->log_list[i].back() + glm::vec2(step * cos(deg * DEG_TO_RAD), step * sin(deg * DEG_TO_RAD)); if (next.x < -limit || next.x > limit || next.y < -limit || next.y > limit) { break; } else { this->log_list[i].push_back(next); } k++; } } } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5); ofSetColor(200); ofSetLineWidth(1.2); for (int i = 0; i < this->log_list.size(); i++) { if (this->log_list[i].size() > 1) { ofNoFill(); ofBeginShape(); ofVertices(this->log_list[i]); ofEndShape(); ofFill(); ofDrawCircle(this->log_list[i].back(), 3); } } ofSetColor(0); this->font.drawString(this->word, this->font.stringWidth(this->word) * -0.5, this->font.stringHeight(this->word) * 0.25); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |