プログラミング de 落描き – ページ 724 – クリエイティブ・コーディングによる生成物とソース

2019年8月1日2019年8月1日

Ripple on square. openFrameworks

[ Video ]

[ About ]
正方形の上で波紋。

Ripple on square.

[ 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) {};

	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) {};

ofEasyCam cam;

};

#include "ofApp.h"	

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

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

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

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

	ofSeedRandom(39);
}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 0.8);

	auto len = 300;
	for (int i = 0; i < 6; i++) {

		if (i < 4) {
		
			ofRotateX(90);
		}
		else if (i < 5) {

			ofRotateY(90);
		}
		else {

			ofRotateY(180);
		}

		for (int k = 0; k < 8; k++) {

			auto location = glm::vec3(ofRandom(-len * 0.5, len * 0.5), ofRandom(-len * 0.5, len * 0.5), len * 0.5);
			auto radius = (int)(ofRandom(100) + ofGetFrameNum()) % 100;

			auto alpha = 255;
			if (radius > 50) {

				alpha = ofMap(radius, 50, 100, 255, 0);
			}

			ofSetColor(39, alpha);

			ofBeginShape();
			for (int deg = 0; deg < 360; deg++) {

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

				if (point.y > len * 0.5) { point.y = len * 0.5; }
				if (point.y < -len * 0.5) { point.y = -len * 0.5; }
				if (point.x > len * 0.5) { point.x = len * 0.5; }
				if (point.x < -len * 0.5) { point.x = -len * 0.5; }

				ofVertex(point);
			}
			ofEndShape(true);
		}
	}

	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);

ofNoFill();

ofSetLineWidth(3);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 0.8);

auto len = 300;

for (int i = 0; i < 6; i++) {

if (i < 4) {

ofRotateX(90);

}

else if (i < 5) {

ofRotateY(90);

}

else {

ofRotateY(180);

}

for (int k = 0; k < 8; k++) {

auto location = glm::vec3(ofRandom(-len * 0.5, len * 0.5), ofRandom(-len * 0.5, len * 0.5), len * 0.5);

auto radius = (int)(ofRandom(100) + ofGetFrameNum()) % 100;

auto alpha = 255;

if (radius > 50) {

alpha = ofMap(radius, 50, 100, 255, 0);

}

ofSetColor(39, alpha);

ofBeginShape();

for (int deg = 0; deg < 360; deg++) {

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

if (point.y > len * 0.5) { point.y = len * 0.5; }

if (point.y < -len * 0.5) { point.y = -len * 0.5; }

if (point.x > len * 0.5) { point.x = len * 0.5; }

if (point.x < -len * 0.5) { point.x = -len * 0.5; }

ofVertex(point);

}

ofEndShape(true);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190801

2019年7月31日2019年7月31日

Ring relationship. openFrameworks

[ Video ]

[ About ]
輪っかで関係性を可視化。

Ring relationship.

[ 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(239);
	ofSetColor(39);
	ofSetLineWidth(1);
}

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

	ofSeedRandom(39);
}

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

	auto radius = 30;
	auto len = 5;
	auto span = 120;
	auto threshold = 120;

	vector<glm::vec2> locations;
	for (auto x = span * 0.5; x < ofGetWidth(); x += span) {

		for (auto y = span * 0.5; y < ofGetHeight(); y += span) {

			auto location = glm::vec2(
				x + ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -span * 0.5 + radius, span * 0.5 - radius),
				y + ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -span * 0.5 + radius, span * 0.5 - radius));
			locations.push_back(location);
		}
	}

	for (auto location : locations) {

		vector<glm::vec2> vertices_1, vertices_2;
		for (auto deg = 0; deg < 360; deg++) {

			vertices_1.push_back(glm::vec2(location.x + radius * cos(deg * DEG_TO_RAD), location.y + radius * sin(deg * DEG_TO_RAD)));
			vertices_2.push_back(glm::vec2(location.x + (radius - len) * cos(deg * DEG_TO_RAD), location.y + (radius - len) * sin(deg * DEG_TO_RAD)));
		}

		ofNoFill();

		ofBeginShape();
		ofVertices(vertices_1);
		ofEndShape(true);

		ofBeginShape();
		ofVertices(vertices_2);
		ofEndShape(true);

		for (auto other : locations) {

			if (location == other) { continue; }

			auto distance = glm::distance(location, other);
			if (distance < threshold) {

				auto direction_rad = std::atan2(other.y - location.y, other.x - location.x);
				auto direction = direction_rad * RAD_TO_DEG;
				auto width = ofMap(distance, 0, threshold, 360, 0);

				vector<glm::vec2> in, out;
				for (auto deg = direction - width * 0.5; deg <= direction + width * 0.5; deg++) {

					in.push_back(glm::vec2(location.x + (radius - len) *cos(deg * DEG_TO_RAD), location.y + (radius - len) * sin(deg * DEG_TO_RAD)));
					out.push_back(glm::vec2(location.x + radius * cos(deg * DEG_TO_RAD), location.y + radius * sin(deg * DEG_TO_RAD)));
				}

				reverse(out.begin(), out.end());

				ofFill();
				ofBeginShape();
				ofVertices(in);
				ofVertices(out);
				ofEndShape();
				
				ofDrawLine(location + glm::vec2(radius * cos(direction * DEG_TO_RAD), radius * sin(direction * DEG_TO_RAD)),
					other + glm::vec2(radius * cos((180 + direction) * DEG_TO_RAD), radius * sin((180 + direction) * DEG_TO_RAD)));
			}
		}
	}
}

//--------------------------------------------------------------
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(1);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

auto radius = 30;

auto len = 5;

auto span = 120;

auto threshold = 120;

vector<glm::vec2> locations;

for (auto x = span * 0.5; x < ofGetWidth(); x += span) {

for (auto y = span * 0.5; y < ofGetHeight(); y += span) {

auto location = glm::vec2(

x + ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -span * 0.5 + radius, span * 0.5 - radius),

y + ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -span * 0.5 + radius, span * 0.5 - radius));

locations.push_back(location);

}

for (auto location : locations) {

vector<glm::vec2> vertices_1, vertices_2;

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

vertices_1.push_back(glm::vec2(location.x + radius * cos(deg * DEG_TO_RAD), location.y + radius * sin(deg * DEG_TO_RAD)));

vertices_2.push_back(glm::vec2(location.x + (radius - len) * cos(deg * DEG_TO_RAD), location.y + (radius - len) * sin(deg * DEG_TO_RAD)));

}

ofNoFill();

ofBeginShape();

ofVertices(vertices_1);

ofEndShape(true);

ofBeginShape();

ofVertices(vertices_2);

ofEndShape(true);

for (auto other : locations) {

if (location == other) { continue; }

auto distance = glm::distance(location, other);

if (distance < threshold) {

auto direction_rad = std::atan2(other.y - location.y, other.x - location.x);

auto direction = direction_rad * RAD_TO_DEG;

auto width = ofMap(distance, 0, threshold, 360, 0);

vector<glm::vec2> in, out;

for (auto deg = direction - width * 0.5; deg <= direction + width * 0.5; deg++) {

in.push_back(glm::vec2(location.x + (radius - len) *cos(deg * DEG_TO_RAD), location.y + (radius - len) * sin(deg * DEG_TO_RAD)));

out.push_back(glm::vec2(location.x + radius * cos(deg * DEG_TO_RAD), location.y + radius * sin(deg * DEG_TO_RAD)));

}

reverse(out.begin(), out.end());

ofFill();

ofBeginShape();

ofVertices(in);

ofVertices(out);

ofEndShape();

ofDrawLine(location + glm::vec2(radius * cos(direction * DEG_TO_RAD), radius * sin(direction * DEG_TO_RAD)),

other + glm::vec2(radius * cos((180 + direction) * DEG_TO_RAD), radius * sin((180 + direction) * DEG_TO_RAD)));

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190731

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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