2025年10月 – ページ 3 – プログラミング de 落描き

2025年10月24日

Double triangle.

[ Video ]

[ About ]
2重三角形。

[ 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::vec2 make_point(int radius, int deg);
};

#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::vec2 make_point(int radius, int deg);

};

#include "ofApp.h"

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

	ofSetFrameRate(25);
	ofSetWindowTitle("openFrameworks");

	ofBackground(39);
	ofSetLineWidth(2);
}

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

}

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

	ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5 + 100);
	ofRotate(270);

	ofColor color;
	for (int radius = 180; radius <= 400; radius += 220) {

		ofPushMatrix();
		if (radius < 400) {

			ofRotate(ofGetFrameNum() * 2.16 + 75);
		}

		int deg_start = radius * 0.5 + ofGetFrameNum() * 2.16;
		for (int deg = deg_start; deg < deg_start + 360; deg += 120) {

			vector<glm::vec2> vertices;
			for (int tmp_deg = deg; tmp_deg <= deg + 110; tmp_deg += 1) {

				vertices.push_back(glm::vec2(this->make_point(radius, tmp_deg)));
			}

			color.setHsb(ofMap(deg, deg_start, deg_start + 360, 0, 255), 180, 255);

			ofFill();
			ofSetColor(ofColor(color, 64));
			ofBeginShape();
			ofVertices(vertices);
			ofEndShape(true);

			ofNoFill();
			ofSetColor(color);
			ofBeginShape();
			ofVertices(vertices);
			ofEndShape(true);
		}

		ofPopMatrix();
	}

	/*
	// ffmpeg -i img_%04d.jpg aaa.mp4
	int start = 150;
	if (ofGetFrameNum() > start) {

		std::ostringstream os;
		os << std::setw(4) << std::setfill('0') << ofGetFrameNum() - start;
		ofImage image;
		image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());
		image.saveImage("image/cap/img_" + os.str() + ".jpg");
		if (ofGetFrameNum() - start >= 25 * 20) {

			std::exit(1);
		}
	}
	*/
}

//--------------------------------------------------------------
glm::vec2 ofApp::make_point(int radius, int deg) {

	deg = deg % 360;

	int deg_a = (deg / 120) * 120;
	int deg_b = deg_a + 120;

	int remainder = deg % 120;
	int diff = deg - deg_a;

	auto point_a = glm::vec2(radius * cos(deg_a * DEG_TO_RAD), radius * sin(deg_a * DEG_TO_RAD));
	auto point_b = glm::vec2(radius * cos(deg_b * DEG_TO_RAD), radius * sin(deg_b * DEG_TO_RAD));
	auto distance = point_b - point_a;

	return point_a + (distance / 120) * diff;
}

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

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

100

101

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofSetLineWidth(2);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5 + 100);

ofRotate(270);

ofColor color;

for (int radius = 180; radius <= 400; radius += 220) {

ofPushMatrix();

if (radius < 400) {

ofRotate(ofGetFrameNum() * 2.16 + 75);

}

int deg_start = radius * 0.5 + ofGetFrameNum() * 2.16;

for (int deg = deg_start; deg < deg_start + 360; deg += 120) {

vector<glm::vec2> vertices;

for (int tmp_deg = deg; tmp_deg <= deg + 110; tmp_deg += 1) {

vertices.push_back(glm::vec2(this->make_point(radius, tmp_deg)));

}

color.setHsb(ofMap(deg, deg_start, deg_start + 360, 0, 255), 180, 255);

ofFill();

ofSetColor(ofColor(color, 64));

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofNoFill();

ofSetColor(color);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

}

ofPopMatrix();

}

// ffmpeg -i img_%04d.jpg aaa.mp4

int start = 150;

if (ofGetFrameNum() > start) {

std::ostringstream os;

os << std::setw(4) << std::setfill('0') << ofGetFrameNum() - start;

ofImage image;

image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());

image.saveImage("image/cap/img_" + os.str() + ".jpg");

if (ofGetFrameNum() - start >= 25 * 20) {

std::exit(1);

}

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

glm::vec2 ofApp::make_point(int radius, int deg) {

deg = deg % 360;

int deg_a = (deg / 120) * 120;

int deg_b = deg_a + 120;

int remainder = deg % 120;

int diff = deg - deg_a;

auto point_a = glm::vec2(radius * cos(deg_a * DEG_TO_RAD), radius * sin(deg_a * DEG_TO_RAD));

auto point_b = glm::vec2(radius * cos(deg_b * DEG_TO_RAD), radius * sin(deg_b * DEG_TO_RAD));

auto distance = point_b - point_a;

return point_a + (distance / 120) * diff;

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/DoodleDeProgramming/tree/9c3b1c0e9809b4ffb6db6aabf5f7c2c7a621771f

2025年10月23日

Triangle on triangle.

[ Video ]

[ About ]
三角形の上の三角形。

[ 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::vec2 make_point(int radius, int deg);
};

#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::vec2 make_point(int radius, int deg);

};

#include "ofApp.h"

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

	ofSetFrameRate(25);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofSetLineWidth(1.5);
}

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

}

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

	ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5 + 100);
	ofRotate(270);

	ofColor color;
	for (int radius = 0; radius <= 400; radius += 10) {

		int deg_start = radius * 0.5 + ofGetFrameNum() * 2.16;
		for (int deg = deg_start; deg < deg_start + 360; deg += 90) {

			vector<glm::vec2> vertices;
			for (int tmp_deg = deg; tmp_deg <= deg + 80; tmp_deg += 1) {

				vertices.push_back(glm::vec2(this->make_point(radius, tmp_deg)));
			}

			color.setHsb(ofMap(deg, deg_start, deg_start + 360, 0, 255), 255, 255);

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

			ofNoFill();
			ofSetColor(color);
			ofBeginShape();
			ofVertices(vertices);
			ofEndShape(true);
		}
	}

	/*
	// ffmpeg -i img_%04d.jpg aaa.mp4
	int start = 150;
	if (ofGetFrameNum() > start) {

		std::ostringstream os;
		os << std::setw(4) << std::setfill('0') << ofGetFrameNum() - start;
		ofImage image;
		image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());
		image.saveImage("image/cap/img_" + os.str() + ".jpg");
		if (ofGetFrameNum() - start >= 25 * 20) {

			std::exit(1);
		}
	}
	*/
}

//--------------------------------------------------------------
glm::vec2 ofApp::make_point(int radius, int deg) {

	deg = deg % 360;

	int deg_a = (deg / 120) * 120;
	int deg_b = deg_a + 120;

	int remainder = deg % 120;
	int diff = deg - deg_a;

	auto point_a = glm::vec2(radius * cos(deg_a * DEG_TO_RAD), radius * sin(deg_a * DEG_TO_RAD));
	auto point_b = glm::vec2(radius * cos(deg_b * DEG_TO_RAD), radius * sin(deg_b * DEG_TO_RAD));
	auto distance = point_b - point_a;

	return point_a + (distance / 120) * diff;
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetLineWidth(1.5);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5 + 100);

ofRotate(270);

ofColor color;

for (int radius = 0; radius <= 400; radius += 10) {

int deg_start = radius * 0.5 + ofGetFrameNum() * 2.16;

for (int deg = deg_start; deg < deg_start + 360; deg += 90) {

vector<glm::vec2> vertices;

for (int tmp_deg = deg; tmp_deg <= deg + 80; tmp_deg += 1) {

vertices.push_back(glm::vec2(this->make_point(radius, tmp_deg)));

}

color.setHsb(ofMap(deg, deg_start, deg_start + 360, 0, 255), 255, 255);

ofFill();

ofSetColor(239);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofNoFill();

ofSetColor(color);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

}

// ffmpeg -i img_%04d.jpg aaa.mp4

int start = 150;

if (ofGetFrameNum() > start) {

std::ostringstream os;

os << std::setw(4) << std::setfill('0') << ofGetFrameNum() - start;

ofImage image;

image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());

image.saveImage("image/cap/img_" + os.str() + ".jpg");

if (ofGetFrameNum() - start >= 25 * 20) {

std::exit(1);

}

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

glm::vec2 ofApp::make_point(int radius, int deg) {

deg = deg % 360;

int deg_a = (deg / 120) * 120;

int deg_b = deg_a + 120;

int remainder = deg % 120;

int diff = deg - deg_a;

auto point_a = glm::vec2(radius * cos(deg_a * DEG_TO_RAD), radius * sin(deg_a * DEG_TO_RAD));

auto point_b = glm::vec2(radius * cos(deg_b * DEG_TO_RAD), radius * sin(deg_b * DEG_TO_RAD));

auto distance = point_b - point_a;

return point_a + (distance / 120) * diff;

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/DoodleDeProgramming/tree/c8ad9e4f0347e00c2840fe618bdd72e609159fba

2025年10月22日

Transparent Wall.

[ Video ]

[ About ]
透明の壁。

[ 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;
};

#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;

};

#include "ofApp.h"

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

	ofSetFrameRate(25);
	ofSetWindowTitle("openFrameworks");

	ofBackground(39);
	ofSetLineWidth(2);
	ofEnableDepthTest();
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
}
//--------------------------------------------------------------
void ofApp::update() {

}

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

	this->cam.begin();
	ofRotateX(270);
	ofRotateZ(ofGetFrameNum() * 0.77);

	auto target_deg = ofGetFrameNum() % 360;
	auto deg_span = 5;

	for (auto radius = 50; radius <= 300; radius += 50) {

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

			auto location_1 = glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0);
			auto location_2 = glm::vec3(radius * cos((deg + deg_span) * DEG_TO_RAD), radius * sin((deg + deg_span) * DEG_TO_RAD), 0);
			auto len_1 = ofMap(ofNoise(glm::vec4(location_1 * 0.005, ofGetFrameNum() * 0.01)), 0, 1, -250, 250);
			auto len_2 = ofMap(ofNoise(glm::vec4(location_2 * 0.005, ofGetFrameNum() * 0.01)), 0, 1, -250, 250);

			vector<glm::vec3> vertices;
			vertices.push_back(location_1);
			vertices.push_back(location_2);
			vertices.push_back(location_2 + glm::vec3(0, 0, len_2));
			vertices.push_back(location_1 + glm::vec3(0, 0, len_1));

			ofFill();
			ofSetColor(39, 39, 239, 128);
			ofBeginShape();
			ofVertices(vertices);
			ofEndShape(true);

			ofNoFill();
			ofSetColor(39, 39, 239);
			ofBeginShape();
			ofVertices(vertices);
			ofEndShape(true);
		}
	}

	this->cam.end();

	/*
	// ffmpeg -i img_%04d.jpg aaa.mp4
	int start = 150;
	if (ofGetFrameNum() > start) {

		std::ostringstream os;
		os << std::setw(4) << std::setfill('0') << ofGetFrameNum() - start;
		ofImage image;
		image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());
		image.saveImage("image/cap/img_" + os.str() + ".jpg");
		if (ofGetFrameNum() - start >= 25 * 20) {

			std::exit(1);
		}
	}
	*/
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofSetLineWidth(2);

ofEnableDepthTest();

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(270);

ofRotateZ(ofGetFrameNum() * 0.77);

auto target_deg = ofGetFrameNum() % 360;

auto deg_span = 5;

for (auto radius = 50; radius <= 300; radius += 50) {

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

auto location_1 = glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0);

auto location_2 = glm::vec3(radius * cos((deg + deg_span) * DEG_TO_RAD), radius * sin((deg + deg_span) * DEG_TO_RAD), 0);

auto len_1 = ofMap(ofNoise(glm::vec4(location_1 * 0.005, ofGetFrameNum() * 0.01)), 0, 1, -250, 250);

auto len_2 = ofMap(ofNoise(glm::vec4(location_2 * 0.005, ofGetFrameNum() * 0.01)), 0, 1, -250, 250);

vector<glm::vec3> vertices;

vertices.push_back(location_1);

vertices.push_back(location_2);

vertices.push_back(location_2 + glm::vec3(0, 0, len_2));

vertices.push_back(location_1 + glm::vec3(0, 0, len_1));

ofFill();

ofSetColor(39, 39, 239, 128);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofNoFill();

ofSetColor(39, 39, 239);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

}

this->cam.end();

// ffmpeg -i img_%04d.jpg aaa.mp4

int start = 150;

if (ofGetFrameNum() > start) {

std::ostringstream os;

os << std::setw(4) << std::setfill('0') << ofGetFrameNum() - start;

ofImage image;

image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());

image.saveImage("image/cap/img_" + os.str() + ".jpg");

if (ofGetFrameNum() - start >= 25 * 20) {

std::exit(1);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/DoodleDeProgramming/tree/a40e46d6ca67040462247a0f63c5ed5dca57e6ad

2025年10月
月	火	水	木	金	土	日
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