プログラミング de 落描き – ページ 628 – 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2月25日2019年2月25日

Noisy dot character. openFrameworks

[ Video ]

[ About ]
文字をドットで書いて、ドットのサイズを変化

Noisy dot character.

[ 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) {};

	ofTrueTypeFont font;
	vector<glm::vec2> locations;
};

#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) {};

ofTrueTypeFont font;

vector<glm::vec2> locations;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(39);

	this->font.loadFont("fonts/Kazesawa-Bold.ttf", 650, true, true, true);
}
//--------------------------------------------------------------
void ofApp::update() {

	vector<string> words = { "A", "B", "C", "D", "E", "F" };
	if (ofGetFrameNum() % 60 == 0) {

		this->locations.clear();

		ofFbo fbo;
		fbo.allocate(ofGetWidth(), ofGetHeight());
		fbo.begin();
		ofClear(0);
		ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);

		string word = words[(ofGetFrameNum() / 60) % words.size()];
		this->font.drawString(word, this->font.stringWidth(word) * -0.5, this->font.stringHeight(word) * 0.5);

		fbo.end();

		ofPixels pixels;
		fbo.readToPixels(pixels);

		int span = 20;
		for (int x = 0; x < fbo.getWidth(); x += span) {

			for (int y = 0; y < fbo.getHeight(); y += span) {

				if (pixels.getColor(x, y) != ofColor(0, 0)) {

					this->locations.push_back(glm::vec2(x, y));
				}
			}
		}
	}
}

//--------------------------------------------------------------
void ofApp::draw() {
	
	for (auto& location : this->locations) {

		ofDrawCircle(location, ofMap(ofNoise(location.x * 0.003, location.y * 0.003 + ofGetFrameNum() * 0.03), 0, 1, 0, 11));
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetColor(39);

this->font.loadFont("fonts/Kazesawa-Bold.ttf", 650, true, true, true);

}

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

void ofApp::update() {

vector<string> words = { "A", "B", "C", "D", "E", "F" };

if (ofGetFrameNum() % 60 == 0) {

this->locations.clear();

ofFbo fbo;

fbo.allocate(ofGetWidth(), ofGetHeight());

fbo.begin();

ofClear(0);

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

string word = words[(ofGetFrameNum() / 60) % words.size()];

this->font.drawString(word, this->font.stringWidth(word) * -0.5, this->font.stringHeight(word) * 0.5);

fbo.end();

ofPixels pixels;

fbo.readToPixels(pixels);

int span = 20;

for (int x = 0; x < fbo.getWidth(); x += span) {

for (int y = 0; y < fbo.getHeight(); y += span) {

if (pixels.getColor(x, y) != ofColor(0, 0)) {

this->locations.push_back(glm::vec2(x, y));

}

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

void ofApp::draw() {

for (auto& location : this->locations) {

ofDrawCircle(location, ofMap(ofNoise(location.x * 0.003, location.y * 0.003 + ofGetFrameNum() * 0.03), 0, 1, 0, 11));

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190225

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2019年2月24日2019年2月24日

Torus pair line. openFrameworks

[ Video ]

[ About ]
昨日のやつを対で線を引くように改造

Torus pair 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) {};

	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 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(1.5);
	ofEnableDepthTest();
}

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

}

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

	this->cam.begin();

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

		auto noise_point = glm::vec2(cos(deg * DEG_TO_RAD), sin(deg * DEG_TO_RAD));
		int u = ofMap(ofNoise(noise_point.x * 0.5, noise_point.y * 0.5, ofGetFrameNum() * 0.01), 0, 1, 0, 720);

		auto start = this->make_point(250, 50, (u)* DEG_TO_RAD, deg * DEG_TO_RAD);
		auto end = this->make_point(250, 50, (u + 180) * DEG_TO_RAD, deg * DEG_TO_RAD);

		ofDrawSphere(start, 3);
		ofDrawSphere(end, 3);

		ofDrawLine(start, end);
	}

	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

	float x = (R + r * cos(u)) * cos(v);
	float y = (R + r * cos(u)) * sin(v);
	float 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(1.5);

ofEnableDepthTest();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

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

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

int u = ofMap(ofNoise(noise_point.x * 0.5, noise_point.y * 0.5, ofGetFrameNum() * 0.01), 0, 1, 0, 720);

auto start = this->make_point(250, 50, (u)* DEG_TO_RAD, deg * DEG_TO_RAD);

auto end = this->make_point(250, 50, (u + 180) * DEG_TO_RAD, deg * DEG_TO_RAD);

ofDrawSphere(start, 3);

ofDrawSphere(end, 3);

ofDrawLine(start, end);

}

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

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

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

float 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/Insta20190224

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2019年2月23日2019年2月23日

Distortion of torus. openFrameworks

[ Video ]

[ About ]
ノイズ関数で求めた角度のトーラス座標を結んで上から観察。トーラス座標の式は「数学デッサン教室描いて楽しむ数学のかたち」から引用

Distortion 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 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 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);
	ofNoFill();
	ofSetLineWidth(2);
	ofEnableDepthTest();
}

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

}

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

	this->cam.begin();

	vector<glm::vec3> vertices_1;
	vector<glm::vec3> vertices_2;
	for (int i = 0; i < 3600; i += 1) {

		float v = i + 0.1;
		auto noise_point = glm::vec2(cos(v * DEG_TO_RAD), sin(v * DEG_TO_RAD));
		int u_start = ofMap(ofNoise(noise_point.x, noise_point.y, ofGetFrameNum() * 0.01), 0, 1, 0, 720);

		vertices_1.push_back(this->make_point(250, 50, (u_start)* DEG_TO_RAD, v * DEG_TO_RAD));
		vertices_2.push_back(this->make_point(250, 50, (u_start + 180) * DEG_TO_RAD, v * DEG_TO_RAD));
	}

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

	ofBeginShape();
	ofVertices(vertices_2);
	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

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

ofNoFill();

ofSetLineWidth(2);

ofEnableDepthTest();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

vector<glm::vec3> vertices_1;

vector<glm::vec3> vertices_2;

for (int i = 0; i < 3600; i += 1) {

float v = i + 0.1;

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

int u_start = ofMap(ofNoise(noise_point.x, noise_point.y, ofGetFrameNum() * 0.01), 0, 1, 0, 720);

vertices_1.push_back(this->make_point(250, 50, (u_start)* DEG_TO_RAD, v * DEG_TO_RAD));

vertices_2.push_back(this->make_point(250, 50, (u_start + 180) * DEG_TO_RAD, v * DEG_TO_RAD));

}

ofBeginShape();

ofVertices(vertices_1);

ofEndShape(true);

ofBeginShape();

ofVertices(vertices_2);

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

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

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

float 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/Insta20190223

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Amazon

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