Torus – ページ 34 – プログラミング de 落描き

2019年8月15日2019年8月15日

Sphere move on torus. openFrameworks

[ Video ]

[ About ]
トーラスの座標上を動く球体。中央からの距離によってサイズと濃さを変える。

Sphere move on torus. sphere size and color change by center location.

[ 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) {};

	glm::vec3 make_point(float R, float r, float u, float v);

	ofEasyCam cam;
};

#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::vec3 make_point(float R, float r, float u, float v);

ofEasyCam cam;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(39);
	ofSetLineWidth(2);
	ofEnableDepthTest();
}
//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);
}

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

	this->cam.begin();

	auto R = 300.f;
	auto r = 80.f;

	for (auto i = 0; i < 30; i++) {

		ofRotate(ofRandom(360));

		auto v_start = ofRandom(15, 360) + ofGetFrameNum();
		for (auto v = v_start - 15; v < v_start + 15; v += 0.5) {

			auto u = v * 8.f;
			ofSetColor(ofMap(abs(v - v_start), 0, 15, 39, 239));
			ofDrawSphere(this->make_point(R, r, u, v), ofMap(abs(v - v_start), 0, 15, 6, 1));
		}
	}

	this->cam.end();
}

//--------------------------------------------------------------
glm::vec3 ofApp::make_point(float R, float r, float u, float v) {

	// 数学デッサン教室 描いて楽しむ数学たち　P.31

	u *= DEG_TO_RAD;
	v *= DEG_TO_RAD;

	auto x = (R + r * cos(u)) * cos(v);
	auto y = (R + r * cos(u)) * sin(v);
	auto z = r * sin(u);

	return glm::vec3(x, y, z);
}


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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetColor(39);

ofSetLineWidth(2);

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

auto R = 300.f;

auto r = 80.f;

for (auto i = 0; i < 30; i++) {

ofRotate(ofRandom(360));

auto v_start = ofRandom(15, 360) + ofGetFrameNum();

for (auto v = v_start - 15; v < v_start + 15; v += 0.5) {

auto u = v * 8.f;

ofSetColor(ofMap(abs(v - v_start), 0, 15, 39, 239));

ofDrawSphere(this->make_point(R, r, u, v), ofMap(abs(v - v_start), 0, 15, 6, 1));

}

this->cam.end();

}

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

glm::vec3 ofApp::make_point(float R, float r, float u, float v) {

// 数学デッサン教室描いて楽しむ数学たち　P.31

u *= DEG_TO_RAD;

v *= DEG_TO_RAD;

auto x = (R + r * cos(u)) * cos(v);

auto y = (R + r * cos(u)) * sin(v);

auto z = r * sin(u);

return glm::vec3(x, y, z);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190815

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2019年8月4日

Skeleton of torus. openFrameworks

[ Video ]

[ About ]
すけすけトーラス

Skeleton of torus.

[ 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) {};

	glm::vec3 make_point(float R, float r, float u, float v);

	ofEasyCam cam;
};

#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::vec3 make_point(float R, float r, float u, float v);

ofEasyCam cam;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(3);
	ofEnableDepthTest();
}

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

}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum());

	auto R = 300.f;
	auto r = 100.f;
	auto u = 0.f;
	auto u_step = 10.f;
	auto v_step = 5.f;
	int param = (ofGetFrameNum() * 2) % 360;

	for (int i = 0; i < 9; i++) {

		ofRotate(20);
		vector<glm::vec3> vertices;
		for (auto v = 0; v < 360; v += v_step) {

			vertices.clear();
			vertices.push_back(this->make_point(R, r, u, v));
			vertices.push_back(this->make_point(R, r, u + u_step, v + v_step));
			vertices.push_back(this->make_point(R, r, u, v + v_step));
			vertices.push_back(this->make_point(R, r, u - u_step, v));

			ofFill();
			ofSetColor(239);
			ofBeginShape();
			ofVertices(vertices);
			ofEndShape(true);

			ofNoFill();
			ofSetColor(39);

			vertices.clear();
			vertices.push_back(this->make_point(R, r + 1, u, v));
			vertices.push_back(this->make_point(R, r + 1, u + u_step, v + v_step));
			vertices.push_back(this->make_point(R, r + 1, u, v + v_step));
			vertices.push_back(this->make_point(R, r + 1, u - u_step, v));

			ofBeginShape();
			ofVertices(vertices);
			ofEndShape(true);

			vertices.clear();
			vertices.push_back(this->make_point(R, r - 1, u, v));
			vertices.push_back(this->make_point(R, r - 1, u + u_step, v + v_step));
			vertices.push_back(this->make_point(R, r - 1, u, v + v_step));
			vertices.push_back(this->make_point(R, r - 1, u - u_step, v));

			ofBeginShape();
			ofVertices(vertices);
			ofEndShape(true);

			u += u_step;
		}
	}

	this->cam.end();
}

//--------------------------------------------------------------
glm::vec3 ofApp::make_point(float R, float r, float u, float v) {

	// 数学デッサン教室 描いて楽しむ数学たち　P.31

	u *= DEG_TO_RAD;
	v *= DEG_TO_RAD;

	auto x = (R + r * cos(u)) * cos(v);
	auto y = (R + r * cos(u)) * sin(v);
	auto z = r * sin(u);

	return glm::vec3(x, y, z);
}

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

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

100

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetLineWidth(3);

ofEnableDepthTest();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum());

auto R = 300.f;

auto r = 100.f;

auto u = 0.f;

auto u_step = 10.f;

auto v_step = 5.f;

int param = (ofGetFrameNum() * 2) % 360;

for (int i = 0; i < 9; i++) {

ofRotate(20);

vector<glm::vec3> vertices;

for (auto v = 0; v < 360; v += v_step) {

vertices.clear();

vertices.push_back(this->make_point(R, r, u, v));

vertices.push_back(this->make_point(R, r, u + u_step, v + v_step));

vertices.push_back(this->make_point(R, r, u, v + v_step));

vertices.push_back(this->make_point(R, r, u - u_step, v));

ofFill();

ofSetColor(239);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofNoFill();

ofSetColor(39);

vertices.clear();

vertices.push_back(this->make_point(R, r + 1, u, v));

vertices.push_back(this->make_point(R, r + 1, u + u_step, v + v_step));

vertices.push_back(this->make_point(R, r + 1, u, v + v_step));

vertices.push_back(this->make_point(R, r + 1, u - u_step, v));

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

vertices.clear();

vertices.push_back(this->make_point(R, r - 1, u, v));

vertices.push_back(this->make_point(R, r - 1, u + u_step, v + v_step));

vertices.push_back(this->make_point(R, r - 1, u, v + v_step));

vertices.push_back(this->make_point(R, r - 1, u - u_step, v));

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

u += u_step;

}

this->cam.end();

}

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

glm::vec3 ofApp::make_point(float R, float r, float u, float v) {

// 数学デッサン教室描いて楽しむ数学たち　P.31

u *= DEG_TO_RAD;

v *= DEG_TO_RAD;

auto x = (R + r * cos(u)) * cos(v);

auto y = (R + r * cos(u)) * sin(v);

auto z = r * sin(u);

return glm::vec3(x, y, z);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190804

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2019年7月30日2019年7月30日

Half torus. openFrameworks

[ Video ]

[ About ]
多層半分トーラス。

Half torus.

[ 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) {};

	glm::vec3 make_point(float R, float r, float u, float v);

	ofEasyCam cam;
};

#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::vec3 make_point(float R, float r, float u, float v);

ofEasyCam cam;

};

#include "ofApp.h"	

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

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

	ofBackground(239);
	ofSetLineWidth(2);
	ofEnableDepthTest();
}

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

	ofSeedRandom(39);
}

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

	this->cam.begin();

	auto R = 300;
	auto v_span = 20;
	auto u_span = 20;
	for (auto v = 0; v < 360; v += v_span) {

		auto noise_point = glm::vec2(R * cos(v * DEG_TO_RAD), R * sin(v * DEG_TO_RAD));
		for (auto r = 30; r < 100; r += 30) {

			auto u_start = ofMap(ofNoise(noise_point.x * 0.005, noise_point.y * 0.005, (ofGetFrameNum() + r) * 0.005), 0, 1, -180, 180);
			for (auto u = u_start; u < u_start + 180; u += u_span) {

				ofSetColor(39);
				ofFill();

				ofBeginShape();
				ofVertex(this->make_point(R, r, u - v_span * 0.5 - 0.2, v - u_span * 0.3 - 0.1));
				ofVertex(this->make_point(R, r, u + v_span * 0.5 - 0.2, v - u_span * 0.3 - 0.1));
				ofVertex(this->make_point(R, r, u + v_span * 0.5 - 0.2, v + u_span * 0.3 - 0.1));
				ofVertex(this->make_point(R, r, u - v_span * 0.5 - 0.2, v + u_span * 0.3 - 0.1));
				ofEndShape(true);

				ofSetColor(239);
				ofNoFill();

				ofBeginShape();
				ofVertex(this->make_point(R, r, u - v_span * 0.5 + 0.2, v - u_span * 0.3 + 0.1));
				ofVertex(this->make_point(R, r, u + v_span * 0.5 + 0.2, v - u_span * 0.3 + 0.1));
				ofVertex(this->make_point(R, r, u + v_span * 0.5 + 0.2, v + u_span * 0.3 + 0.1));
				ofVertex(this->make_point(R, r, u - v_span * 0.5 + 0.2, v + u_span * 0.3 + 0.1));
				ofEndShape(true);
			}
		}
	}

	this->cam.end();
}

//--------------------------------------------------------------
glm::vec3 ofApp::make_point(float R, float r, float u, float v) {

	// 数学デッサン教室 描いて楽しむ数学たち　P.31

	u *= DEG_TO_RAD;
	v *= DEG_TO_RAD;

	auto x = (R + r * cos(u)) * cos(v);
	auto y = (R + r * cos(u)) * sin(v);
	auto z = r * sin(u);

	return glm::vec3(x, y, z);
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetLineWidth(2);

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

auto R = 300;

auto v_span = 20;

auto u_span = 20;

for (auto v = 0; v < 360; v += v_span) {

auto noise_point = glm::vec2(R * cos(v * DEG_TO_RAD), R * sin(v * DEG_TO_RAD));

for (auto r = 30; r < 100; r += 30) {

auto u_start = ofMap(ofNoise(noise_point.x * 0.005, noise_point.y * 0.005, (ofGetFrameNum() + r) * 0.005), 0, 1, -180, 180);

for (auto u = u_start; u < u_start + 180; u += u_span) {

ofSetColor(39);

ofFill();

ofBeginShape();

ofVertex(this->make_point(R, r, u - v_span * 0.5 - 0.2, v - u_span * 0.3 - 0.1));

ofVertex(this->make_point(R, r, u + v_span * 0.5 - 0.2, v - u_span * 0.3 - 0.1));

ofVertex(this->make_point(R, r, u + v_span * 0.5 - 0.2, v + u_span * 0.3 - 0.1));

ofVertex(this->make_point(R, r, u - v_span * 0.5 - 0.2, v + u_span * 0.3 - 0.1));

ofEndShape(true);

ofSetColor(239);

ofNoFill();

ofBeginShape();

ofVertex(this->make_point(R, r, u - v_span * 0.5 + 0.2, v - u_span * 0.3 + 0.1));

ofVertex(this->make_point(R, r, u + v_span * 0.5 + 0.2, v - u_span * 0.3 + 0.1));

ofVertex(this->make_point(R, r, u + v_span * 0.5 + 0.2, v + u_span * 0.3 + 0.1));

ofVertex(this->make_point(R, r, u - v_span * 0.5 + 0.2, v + u_span * 0.3 + 0.1));

ofEndShape(true);

}

this->cam.end();

}

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

glm::vec3 ofApp::make_point(float R, float r, float u, float v) {

// 数学デッサン教室描いて楽しむ数学たち　P.31

u *= DEG_TO_RAD;

v *= DEG_TO_RAD;

auto x = (R + r * cos(u)) * cos(v);

auto y = (R + r * cos(u)) * sin(v);

auto z = r * sin(u);

return glm::vec3(x, y, z);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190730

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