circle – ページ 20 – プログラミング de 落描き

2022年12月12日

Switching. Draw by openFrameworks

[ Video ]

[ About ]
スイッチング。

[ Source ]

#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) {};
};

#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) {};

};

#include "ofApp.h"	

//--------------------------------------------------------------
void ofApp::setup() {

	ofSetFrameRate(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(0);
	ofSetColor(255);
	ofNoFill();
	ofSetLineWidth(2);
}

//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);
}

//--------------------------------------------------------------
void ofApp::draw() {

	ofTranslate(ofGetWindowSize() * 0.5);

	auto span = 40;
	auto radius = span * 0.5;
	for (int x = span * -8; x <= span * 8; x += span) {

		for (int y = span * -8; y <= span * 8; y += span) {

			if (x == 0 && y == 0) { continue; }

			auto noise_param = abs(x) > abs(y) ? abs(x) : abs(y);
			auto noise_value = ofNoise(noise_param * 0.0035, ofGetFrameNum() * 0.005);
			auto deg_start = 0;

			if (noise_value < 0.2) { deg_start = 0; }
			else if (noise_value < 0.25) { deg_start = ofMap(noise_value, 0.2, 0.25, 0, 90); }
			else if (noise_value < 0.45) { deg_start = 90; }
			else if (noise_value < 0.50) { deg_start = ofMap(noise_value, 0.45, 0.50, 90, 180); }
			else if (noise_value < 0.70) { deg_start = 180; }
			else if (noise_value < 0.75) { deg_start = ofMap(noise_value, 0.7, 0.75, 180, 270); }
			else if (noise_value < 0.95) { deg_start = 270; }
			else if (noise_value < 1.0) { ofMap(noise_value, 0.95, 1.0, 270, 360); }

			deg_start += 180 + atan2(-y, -x) * RAD_TO_DEG;

			ofNoFill();
			ofBeginShape();
			for (int deg = deg_start - 135; deg <= deg_start + 135; deg++) {

				ofVertex(x + radius * 0.8 * cos(deg * DEG_TO_RAD), y + radius * 0.8 * sin(deg * DEG_TO_RAD));
			}
			ofEndShape();

			ofFill();
			ofDrawCircle(glm::vec2(x + radius * 0.7 * cos((deg_start + 180) * DEG_TO_RAD), y + radius * 0.7 * sin((deg_start + 180) * DEG_TO_RAD)), 4);
			
		}
	}

}

//--------------------------------------------------------------
int main() {

	ofSetupOpenGL(720, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

//--------------------------------------------------------------

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofSetColor(255);

ofNoFill();

ofSetLineWidth(2);

}

//--------------------------------------------------------------

void ofApp::update() {

ofSeedRandom(39);

}

//--------------------------------------------------------------

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

auto span = 40;

auto radius = span * 0.5;

for (int x = span * -8; x <= span * 8; x += span) {

for (int y = span * -8; y <= span * 8; y += span) {

if (x == 0 && y == 0) { continue; }

auto noise_param = abs(x) > abs(y) ? abs(x) : abs(y);

auto noise_value = ofNoise(noise_param * 0.0035, ofGetFrameNum() * 0.005);

auto deg_start = 0;

if (noise_value < 0.2) { deg_start = 0; }

else if (noise_value < 0.25) { deg_start = ofMap(noise_value, 0.2, 0.25, 0, 90); }

else if (noise_value < 0.45) { deg_start = 90; }

else if (noise_value < 0.50) { deg_start = ofMap(noise_value, 0.45, 0.50, 90, 180); }

else if (noise_value < 0.70) { deg_start = 180; }

else if (noise_value < 0.75) { deg_start = ofMap(noise_value, 0.7, 0.75, 180, 270); }

else if (noise_value < 0.95) { deg_start = 270; }

else if (noise_value < 1.0) { ofMap(noise_value, 0.95, 1.0, 270, 360); }

deg_start += 180 + atan2(-y, -x) * RAD_TO_DEG;

ofNoFill();

ofBeginShape();

for (int deg = deg_start - 135; deg <= deg_start + 135; deg++) {

ofVertex(x + radius * 0.8 * cos(deg * DEG_TO_RAD), y + radius * 0.8 * sin(deg * DEG_TO_RAD));

}

ofEndShape();

ofFill();

ofDrawCircle(glm::vec2(x + radius * 0.7 * cos((deg_start + 180) * DEG_TO_RAD), y + radius * 0.7 * sin((deg_start + 180) * DEG_TO_RAD)), 4);

}

//--------------------------------------------------------------

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20221212

2022年11月23日

Circle of gradation. Draw by openFrameworks

[ Video ]

[ About ]
グラデーションの円。

[ Source ]

#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) {};
};

#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) {};

};

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup() {

	ofSetFrameRate(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(0);
}

//--------------------------------------------------------------
void ofApp::update() {

	
}

//--------------------------------------------------------------
void ofApp::draw() {

	ofTranslate(ofGetWindowSize() * 0.5);

	auto radius_span = 20;
	auto len = 600;
	ofColor color;

	ofSeedRandom(39);
	for (int radius = 60; radius <= 320; radius += radius_span) {

		auto noise_seed = ofRandom(1000);
		for (int i = 0; i < len; i++) {

			auto deg = ofMap(ofNoise(noise_seed, i * 0.00035 - ofGetFrameNum() * 0.0025), 0, 1, -360, 360);
			auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
		
			ofNoFill();
			ofSetColor(255);
			ofDrawCircle(location, radius_span * 0.3 + 1);
		}
	
	}

	ofSeedRandom(39);
	for (int radius = 60; radius <= 320; radius += radius_span) {

		auto noise_seed = ofRandom(1000);
		auto hue = ofMap(radius, 60, 320, 0, 255);
		for (int i = 0; i < len; i++) {

			auto deg = ofMap(ofNoise(noise_seed, i * 0.00035 - ofGetFrameNum() * 0.0025), 0, 1, -360, 360);
			auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

			color.setHsb((int)(hue + i * 0.1) % 255, 200, 255);

			ofFill();
			ofSetColor(color);
			ofDrawCircle(location, radius_span * 0.3);
		}

	}
}

//--------------------------------------------------------------
int main() {

	ofSetupOpenGL(720, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

//--------------------------------------------------------------

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

}

//--------------------------------------------------------------

void ofApp::update() {

}

//--------------------------------------------------------------

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

auto radius_span = 20;

auto len = 600;

ofColor color;

ofSeedRandom(39);

for (int radius = 60; radius <= 320; radius += radius_span) {

auto noise_seed = ofRandom(1000);

for (int i = 0; i < len; i++) {

auto deg = ofMap(ofNoise(noise_seed, i * 0.00035 - ofGetFrameNum() * 0.0025), 0, 1, -360, 360);

auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

ofNoFill();

ofSetColor(255);

ofDrawCircle(location, radius_span * 0.3 + 1);

}

ofSeedRandom(39);

for (int radius = 60; radius <= 320; radius += radius_span) {

auto noise_seed = ofRandom(1000);

auto hue = ofMap(radius, 60, 320, 0, 255);

for (int i = 0; i < len; i++) {

auto deg = ofMap(ofNoise(noise_seed, i * 0.00035 - ofGetFrameNum() * 0.0025), 0, 1, -360, 360);

auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

color.setHsb((int)(hue + i * 0.1) % 255, 200, 255);

ofFill();

ofSetColor(color);

ofDrawCircle(location, radius_span * 0.3);

}

//--------------------------------------------------------------

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20221123

2022年11月22日

Vortex. Draw by openFrameworks

[ Video ]

[ About ]
渦。

[ Source ]

#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) {};
};

#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) {};

};

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup() {

	ofSetFrameRate(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(0);
	ofNoFill();
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
}

//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);
}

//--------------------------------------------------------------
void ofApp::draw() {

	ofTranslate(ofGetWindowSize() * 0.5);

	ofColor color;
	for (float base_deg = 0; base_deg < 360; base_deg += 1) {

		vector<glm::vec2> vertices;
		auto base_radius = ofRandom(720);
		auto speed = ofRandom(3, 5);
		auto deg_speed = ofRandom(2, 6);

		for (int i = 0; i < ofMap(deg_speed, 2, 6, 30, 10); i++) {

			auto deg = base_deg + (ofGetFrameNum() + i) * deg_speed;
			auto radius = 800 - (int)(base_radius + (ofGetFrameNum() + i) * speed) % 800;
			if (radius < 100) { radius = 100; }
			auto vertex = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

			if (i > 0 && glm::distance(vertex, vertices.back()) > 100) {

				continue;
			}
			vertices.push_back(vertex);
		}
		
		color.setHsb(ofRandom(255), 80, 255);
		ofSetColor(color);

		ofBeginShape();
		ofVertices(vertices);
		ofEndShape();
	}
}

//--------------------------------------------------------------
int main() {

	ofSetupOpenGL(720, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

//--------------------------------------------------------------

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofNoFill();

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

//--------------------------------------------------------------

void ofApp::update() {

ofSeedRandom(39);

}

//--------------------------------------------------------------

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

ofColor color;

for (float base_deg = 0; base_deg < 360; base_deg += 1) {

vector<glm::vec2> vertices;

auto base_radius = ofRandom(720);

auto speed = ofRandom(3, 5);

auto deg_speed = ofRandom(2, 6);

for (int i = 0; i < ofMap(deg_speed, 2, 6, 30, 10); i++) {

auto deg = base_deg + (ofGetFrameNum() + i) * deg_speed;

auto radius = 800 - (int)(base_radius + (ofGetFrameNum() + i) * speed) % 800;

if (radius < 100) { radius = 100; }

auto vertex = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

if (i > 0 && glm::distance(vertex, vertices.back()) > 100) {

continue;

}

vertices.push_back(vertex);

}

color.setHsb(ofRandom(255), 80, 255);

ofSetColor(color);

ofBeginShape();

ofVertices(vertices);

ofEndShape();

}

//--------------------------------------------------------------

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20221122

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