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四角と円の座標の合成キメラ
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#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) {} ofPoint make_rect_point(float half_len, int deg, int z = 0); }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofBackground(239); ofSetWindowTitle("Insta"); ofSetColor(39); ofNoFill(); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { int radius = 100; for (int x = 0; x < 3; x++) { for (int y = 0; y < 3; y++) { ofPushMatrix(); ofTranslate(x * 240 + 120, y * 240 + 120); float random_value = ofRandom(100); ofBeginShape(); for (int deg = 0; deg < 360; deg++) { ofPoint point = make_rect_point(radius, deg); float noise_value = ofNoise(random_value, point.x * 0.005, point.y * 0.005, ofGetFrameNum() * 0.005); if (noise_value > 0.5) { point = ofPoint(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)); } ofVertex(point); } ofEndShape(true); ofPopMatrix(); } } } //-------------------------------------------------------------- ofPoint ofApp::make_rect_point(float len, int deg, int z) { int half_len = len * 0.5; int param = (deg + 45) / 90; ofPoint point; switch (param % 4) { case 0: return ofPoint(half_len, ofMap((deg + 45) % 90, 0, 89, -half_len, half_len), z); case 1: return ofPoint(ofMap((deg + 45) % 90, 0, 89, half_len, -half_len), half_len, z); case 2: return ofPoint(-half_len, ofMap((deg + 45) % 90, 0, 89, half_len, -half_len), z); case 3: return ofPoint(ofMap((deg + 45) % 90, 0, 89, -half_len, half_len), -half_len, z); default: return ofPoint(0, 0, 0); } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |