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正方形を分割して色付け。
Coloring devided square.
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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) {}; glm::vec2 make_point(int len, int param); void draw_shape(vector<glm::vec2>& param1, vector<glm::vec2>& param2); }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openFrameworks"); ofBackground(239); ofSetLineWidth(3); } //-------------------------------------------------------------- void ofApp::update() { } //-------------------------------------------------------------- void ofApp::draw() { int span = 180; int len = 150; for (int x = span * 0.5; x < ofGetWidth(); x += span) { for (int y = span * 0.5; y < ofGetHeight(); y += span) { vector<glm::vec2> right, left; for (auto param = 0; param <= 50; param++) { auto noise_value = ofNoise(x, y, param * 0.08, ofGetFrameNum() * 0.01); if (noise_value < 0.65) { right.push_back(this->make_point(len, param) + glm::vec2(x, y)); left.push_back(this->make_point(len, 100 - param) + glm::vec2(x, y)); } else { this->draw_shape(right, left); } } this->draw_shape(right, left); } } } //-------------------------------------------------------------- glm::vec2 ofApp::make_point(int len, int param) { param = param % 100; if (param < 25) { return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5); } else if (param < 50) { return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5)); } else if (param < 75) { return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5); } else { return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5)); } } //-------------------------------------------------------------- void ofApp::draw_shape(vector<glm::vec2>& param_1, vector<glm::vec2>& param_2) { if (param_1.size() > 0 && param_2.size() > 0) { std::reverse(param_2.begin(), param_2.end()); ofColor color; color.setHsb(((int)(param_1[0].x + param_1[0].y + 255) % 255), 180, 255); ofFill(); ofSetColor(color, 200); ofBeginShape(); ofVertices(param_1); ofVertices(param_2); ofEndShape(true); ofNoFill(); ofSetColor(39); ofBeginShape(); ofVertices(param_1); ofVertices(param_2); ofEndShape(true); param_1.clear(); param_2.clear(); } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |