circle – ページ 79 – プログラミング de 落描き

2019年11月13日2019年11月13日

Tangled line. openFrameworks

[ Video ]

[ About ]
もつれる帯。

Tangled line.

[ 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) {};

	ofEasyCam cam;
	ofMesh mesh;
};

#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) {};

ofEasyCam cam;

ofMesh mesh;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofSetColor(39);
	ofEnableDepthTest();
}

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

	this->mesh.clear();

	auto radius = 125;
	for (auto x = -300; x <= 300; x += 300) {

		for (auto y = -300; y <= 300; y += 300) {

			auto location = glm::vec3(x, y, 0);
			for (auto deg = 0; deg < 360; deg += 1) {

				int index = this->mesh.getVertices().size();
				vector<glm::vec3> vertices = {
					glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 3),
					glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), 3),
					glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), -3),
					glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), -3)
				};

				for (auto& vertex : vertices) {

					auto noise_seed_x = location.x + vertex.x * 0.003;
					auto noise_seed_y = location.y + vertex.y * 0.003;
					auto noise_seed_z = location.z + vertex.z * 0.003;

					auto angle_x = ofMap(ofNoise(noise_seed_x, ofGetFrameNum() * 0.001), 0, 1, -PI * 2, PI * 2);
					auto angle_y = ofMap(ofNoise(noise_seed_y, ofGetFrameNum() * 0.001), 0, 1, -PI * 2, PI * 2);
					auto angle_z = ofMap(ofNoise(noise_seed_z, ofGetFrameNum() * 0.001), 0, 1, -PI * 2, PI * 2);

					auto rotation_x = glm::rotate(glm::mat4(), angle_x, glm::vec3(1, 0, 0));
					auto rotation_y = glm::rotate(glm::mat4(), angle_y, glm::vec3(0, 1, 0));
					auto rotation_z = glm::rotate(glm::mat4(), angle_z, glm::vec3(0, 0, 1));

					this->mesh.addVertex(location + glm::vec4(vertex, 0) * rotation_z * rotation_y * rotation_x);
				}

				this->mesh.addIndex(index + 0); this->mesh.addIndex(index + 1); this->mesh.addIndex(index + 2);
				this->mesh.addIndex(index + 0); this->mesh.addIndex(index + 3); this->mesh.addIndex(index + 2);
			}
		}
	}
}

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

	this->cam.begin();
	
	this->mesh.draw();

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetColor(39);

ofEnableDepthTest();

}

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

void ofApp::update() {

this->mesh.clear();

auto radius = 125;

for (auto x = -300; x <= 300; x += 300) {

for (auto y = -300; y <= 300; y += 300) {

auto location = glm::vec3(x, y, 0);

for (auto deg = 0; deg < 360; deg += 1) {

int index = this->mesh.getVertices().size();

vector<glm::vec3> vertices = {

glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 3),

glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), 3),

glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), -3),

glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), -3)

};

for (auto& vertex : vertices) {

auto noise_seed_x = location.x + vertex.x * 0.003;

auto noise_seed_y = location.y + vertex.y * 0.003;

auto noise_seed_z = location.z + vertex.z * 0.003;

auto angle_x = ofMap(ofNoise(noise_seed_x, ofGetFrameNum() * 0.001), 0, 1, -PI * 2, PI * 2);

auto angle_y = ofMap(ofNoise(noise_seed_y, ofGetFrameNum() * 0.001), 0, 1, -PI * 2, PI * 2);

auto angle_z = ofMap(ofNoise(noise_seed_z, ofGetFrameNum() * 0.001), 0, 1, -PI * 2, PI * 2);

auto rotation_x = glm::rotate(glm::mat4(), angle_x, glm::vec3(1, 0, 0));

auto rotation_y = glm::rotate(glm::mat4(), angle_y, glm::vec3(0, 1, 0));

auto rotation_z = glm::rotate(glm::mat4(), angle_z, glm::vec3(0, 0, 1));

this->mesh.addVertex(location + glm::vec4(vertex, 0) * rotation_z * rotation_y * rotation_x);

}

this->mesh.addIndex(index + 0); this->mesh.addIndex(index + 1); this->mesh.addIndex(index + 2);

this->mesh.addIndex(index + 0); this->mesh.addIndex(index + 3); this->mesh.addIndex(index + 2);

}

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

void ofApp::draw() {

this->cam.begin();

this->mesh.draw();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20191113

2019年11月6日2019年11月6日

Connecting circles. openFrameworks

[ Video ]

[ About ]
4つの円を結ぶ。

Connecting circles.

[ 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) {};
	
	ofMesh mesh;
};

#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) {};

ofMesh mesh;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openframeworks");

	ofBackground(0);
	ofSetLineWidth(2);

	this->mesh.setMode(OF_PRIMITIVE_LINES);
}

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

	this->mesh.clear();

	auto radius = 100;
	auto span = 240;
	int deg_start = ofGetFrameNum() % 360;

	for (auto deg = deg_start; deg < deg_start + 360; deg += 10) {

		this->mesh.addVertex(glm::vec3(span, 0, 0) + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));
		this->mesh.addVertex(glm::vec3(0, -span, 0) + glm::vec3(radius * cos((deg + 90) * DEG_TO_RAD), radius * sin((deg + 90) * DEG_TO_RAD), 0));
		this->mesh.addVertex(glm::vec3(-span, 0, 0) + glm::vec3(radius * cos((deg + 180) * DEG_TO_RAD), radius * sin((deg + 180) * DEG_TO_RAD), 0));
		this->mesh.addVertex(glm::vec3(0, span, 0) + glm::vec3(radius * cos((deg + 270) * DEG_TO_RAD), radius * sin((deg + 270) * DEG_TO_RAD), 0));

		ofColor color;

		for (auto i = 0; i < 4; i++) {
		
			color.setHsb(ofMap((deg + (360 - deg_start) + i * 180) % 360, 0, 360, 0, 255), 200, 255);
			this->mesh.addColor(color);
		}

		auto index = this->mesh.getVertices().size() - 4;

		this->mesh.addIndex(index);
		this->mesh.addIndex(index + 1);
		
		this->mesh.addIndex(index + 1);
		this->mesh.addIndex(index + 2);

		this->mesh.addIndex(index + 2);
		this->mesh.addIndex(index + 3);

		this->mesh.addIndex(index + 3);
		this->mesh.addIndex(index + 0);
	}

}

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

	ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);

	this->mesh.draw();
	for (int i = 0; i < this->mesh.getVertices().size(); i++) {

		ofSetColor(this->mesh.getColor(i));
		ofDrawCircle(this->mesh.getVertex(i), 4);
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofSetLineWidth(2);

this->mesh.setMode(OF_PRIMITIVE_LINES);

}

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

void ofApp::update() {

this->mesh.clear();

auto radius = 100;

auto span = 240;

int deg_start = ofGetFrameNum() % 360;

for (auto deg = deg_start; deg < deg_start + 360; deg += 10) {

this->mesh.addVertex(glm::vec3(span, 0, 0) + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));

this->mesh.addVertex(glm::vec3(0, -span, 0) + glm::vec3(radius * cos((deg + 90) * DEG_TO_RAD), radius * sin((deg + 90) * DEG_TO_RAD), 0));

this->mesh.addVertex(glm::vec3(-span, 0, 0) + glm::vec3(radius * cos((deg + 180) * DEG_TO_RAD), radius * sin((deg + 180) * DEG_TO_RAD), 0));

this->mesh.addVertex(glm::vec3(0, span, 0) + glm::vec3(radius * cos((deg + 270) * DEG_TO_RAD), radius * sin((deg + 270) * DEG_TO_RAD), 0));

ofColor color;

for (auto i = 0; i < 4; i++) {

color.setHsb(ofMap((deg + (360 - deg_start) + i * 180) % 360, 0, 360, 0, 255), 200, 255);

this->mesh.addColor(color);

}

auto index = this->mesh.getVertices().size() - 4;

this->mesh.addIndex(index);

this->mesh.addIndex(index + 1);

this->mesh.addIndex(index + 2);

this->mesh.addIndex(index + 3);

this->mesh.addIndex(index + 0);

}

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

void ofApp::draw() {

ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);

this->mesh.draw();

for (int i = 0; i < this->mesh.getVertices().size(); i++) {

ofSetColor(this->mesh.getColor(i));

ofDrawCircle(this->mesh.getVertex(i), 4);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20191106

2019年10月10日2019年10月10日

Triangle on the circumference. openFrameworks

[ Video ]

[ About ]
円周上の3点を結んだ三角形を重ねる。

Triangle on the circumference.

[ 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) {};

	vector<ofColor> color_list;
};

#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<ofColor> color_list;

};

[ Link ]
https://github.com/junkiyoshi/Insta20191010

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