junkiyoshi – ページ 128 – プログラミング de 落描き

2024年11月1日

Loop lines.

[ Video ]

[ About ]
ループ線。

[ 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) {};

	int frame_number;
};

#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) {};

int frame_number;

};

#include "ofApp.h"

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

	ofSetFrameRate(25);
	ofSetWindowTitle("openframeworks");

	ofBackground(39);
	ofSetColor(200);
	ofNoFill();
	ofSetLineWidth(2);

	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

	this->frame_number = 0;
}

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

	this->frame_number += 1;
}

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

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

	for (int k = 0; k < 15; k++) {

		ofRotate(24);

		vector<glm::vec2> vertices;
		for (int i = 0; i < 80; i++) {

			auto radius = ofMap(sin((this->frame_number + i) * DEG_TO_RAD * 1.44), -1, 1, 100, 300);
			auto deg = (this->frame_number + i) * 3;
			auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

			radius = ofMap(sin((this->frame_number + i + 1) * DEG_TO_RAD * 1.44), -1, 1, 100, 300);
			deg = (this->frame_number + i + 1) * 3;
			auto next = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

			ofSetLineWidth(ofMap(i, 0, 80, 0.1, 2.5));
			ofDrawLine(location, next);

		}
	}

	/*
	int start = 300;
	if (ofGetFrameNum() > start) {

		ostringstream os;
		os << setw(4) << 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);

ofSetColor(200);

ofNoFill();

ofSetLineWidth(2);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

this->frame_number = 0;

}

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

void ofApp::update() {

this->frame_number += 1;

}

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

void ofApp::draw() {

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

for (int k = 0; k < 15; k++) {

ofRotate(24);

vector<glm::vec2> vertices;

for (int i = 0; i < 80; i++) {

auto radius = ofMap(sin((this->frame_number + i) * DEG_TO_RAD * 1.44), -1, 1, 100, 300);

auto deg = (this->frame_number + i) * 3;

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

radius = ofMap(sin((this->frame_number + i + 1) * DEG_TO_RAD * 1.44), -1, 1, 100, 300);

deg = (this->frame_number + i + 1) * 3;

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

ofSetLineWidth(ofMap(i, 0, 80, 0.1, 2.5));

ofDrawLine(location, next);

}

int start = 300;

if (ofGetFrameNum() > start) {

ostringstream os;

os << setw(4) << 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/Insta20241101

2024年10月31日

Tornado.

[ Video ]

[ About ]
渦。

[ 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) {};

	int frame_number;
};

#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) {};

int frame_number;

};

#include "ofApp.h"

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

	ofSetFrameRate(25);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofSetColor(0);
	ofNoFill();
	ofSetLineWidth(2);

	this->frame_number = 0;
}

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

	this->frame_number += 1;
}

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

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

	ofColor color;
	for (int k = 0; k < 60; k++) {

		ofRotate(6);

		vector<glm::vec2> vertices;
		for (int i = 0; i < 30; i++) {

			auto radius = k % 2 == 0 ? ofMap(sin((this->frame_number + i) * 0.314 * 0.1), -1, 1, 100, 300) : ofMap(sin((this->frame_number + i) * 0.314 * 0.35), -1, 1, 300, 200);
			auto deg = (this->frame_number + i) * 3;
			auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

			vertices.push_back(location);
		}

		ofBeginShape();
		ofVertices(vertices);
		ofEndShape();
	}

	/*
	int start = 60;
	if (ofGetFrameNum() > start) {

		ostringstream os;
		os << setw(4) << 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(239);

ofSetColor(0);

ofNoFill();

ofSetLineWidth(2);

this->frame_number = 0;

}

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

void ofApp::update() {

this->frame_number += 1;

}

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

void ofApp::draw() {

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

ofColor color;

for (int k = 0; k < 60; k++) {

ofRotate(6);

vector<glm::vec2> vertices;

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

auto radius = k % 2 == 0 ? ofMap(sin((this->frame_number + i) * 0.314 * 0.1), -1, 1, 100, 300) : ofMap(sin((this->frame_number + i) * 0.314 * 0.35), -1, 1, 300, 200);

auto deg = (this->frame_number + i) * 3;

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

vertices.push_back(location);

}

ofBeginShape();

ofVertices(vertices);

ofEndShape();

}

int start = 60;

if (ofGetFrameNum() > start) {

ostringstream os;

os << setw(4) << 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/Insta20241031

2024年10月30日

Color rings.

[ Video ]

[ About ]
色輪。

[ 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(25);
	ofSetWindowTitle("openframeworks");

	ofBackground(39);
	ofSetLineWidth(2);
	ofEnableDepthTest();
}

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

	ofSeedRandom(39);
}

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

	this->cam.begin();
	ofRotateX(315);

	int v_span = 8;
	int u_span = 2;
	int R = 200;

	ofMesh face, line;
	line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

	int r = 70;
	float noise_seed = ofRandom(1000);

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

		for (int v = 0; v <= 360; v += v_span * 1.5) {

			int u_start = i * 60 + ofMap(ofNoise(noise_seed, cos(v * DEG_TO_RAD) * 0.15, sin(v * DEG_TO_RAD) * 0.15, ofGetFrameNum() * 0.0025), 0, 1, -720, 720);
			int next_u = i * 60 + ofMap(ofNoise(noise_seed, cos((v + v_span * 0.25) * DEG_TO_RAD) * 0.15, sin((v + v_span * 0.25) * DEG_TO_RAD) * 0.15, ofGetFrameNum() * 0.0025), 0, 1, -720, 720);
			for (int u = u_start; u < u_start + 50; u += u_span) {

				face.addVertex(this->make_point(R, r, u, v));
				face.addVertex(this->make_point(R, r, u + u_span, v));
				face.addVertex(this->make_point(R, r, next_u + u_span, v + v_span * 0.25));
				face.addVertex(this->make_point(R, r, next_u, v + v_span * 0.25));

				line.addVertex(this->make_point(R, r, u, v));
				line.addVertex(this->make_point(R, r, u + u_span, v));
				line.addVertex(this->make_point(R, r, next_u + u_span, v + v_span * 0.25));
				line.addVertex(this->make_point(R, r, next_u, v + v_span * 0.25));

				ofColor face_color = ofColor(0);
				ofColor line_color;
				line_color.setHsb(ofMap(i, 0, 8, 0, 255), 255, 255);

				face.addColor(face_color);
				face.addColor(face_color);
				face.addColor(face_color);
				face.addColor(face_color);

				line.addColor(line_color);
				line.addColor(line_color);
				line.addColor(line_color);
				line.addColor(line_color);

				face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 3);
				face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 4);

				line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 2);
				line.addIndex(line.getNumVertices() - 3); line.addIndex(line.getNumVertices() - 4);

				if (u == u_start) {

					line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 4);
				}

				next_u += u_span;
			}

			line.addIndex(line.getNumVertices() - 2); line.addIndex(line.getNumVertices() - 3);
		}
	}

	face.drawFaces();
	line.drawWireframe();

	this->cam.end();

	/*
	int start = 250;
	if (ofGetFrameNum() > start) {

		ostringstream os;
		os << setw(4) << 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::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());
}

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openframeworks");

ofBackground(39);

ofSetLineWidth(2);

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(315);

int v_span = 8;

int u_span = 2;

int R = 200;

ofMesh face, line;

line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

int r = 70;

float noise_seed = ofRandom(1000);

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

for (int v = 0; v <= 360; v += v_span * 1.5) {

int u_start = i * 60 + ofMap(ofNoise(noise_seed, cos(v * DEG_TO_RAD) * 0.15, sin(v * DEG_TO_RAD) * 0.15, ofGetFrameNum() * 0.0025), 0, 1, -720, 720);

int next_u = i * 60 + ofMap(ofNoise(noise_seed, cos((v + v_span * 0.25) * DEG_TO_RAD) * 0.15, sin((v + v_span * 0.25) * DEG_TO_RAD) * 0.15, ofGetFrameNum() * 0.0025), 0, 1, -720, 720);

for (int u = u_start; u < u_start + 50; u += u_span) {

face.addVertex(this->make_point(R, r, u, v));

face.addVertex(this->make_point(R, r, u + u_span, v));

face.addVertex(this->make_point(R, r, next_u + u_span, v + v_span * 0.25));

face.addVertex(this->make_point(R, r, next_u, v + v_span * 0.25));

line.addVertex(this->make_point(R, r, u, v));

line.addVertex(this->make_point(R, r, u + u_span, v));

line.addVertex(this->make_point(R, r, next_u + u_span, v + v_span * 0.25));

line.addVertex(this->make_point(R, r, next_u, v + v_span * 0.25));

ofColor face_color = ofColor(0);

ofColor line_color;

line_color.setHsb(ofMap(i, 0, 8, 0, 255), 255, 255);

face.addColor(face_color);

line.addColor(line_color);

face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 3);

face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 4);

line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 2);

line.addIndex(line.getNumVertices() - 3); line.addIndex(line.getNumVertices() - 4);

if (u == u_start) {

line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 4);

}

next_u += u_span;

}

line.addIndex(line.getNumVertices() - 2); line.addIndex(line.getNumVertices() - 3);

}

face.drawFaces();

line.drawWireframe();

this->cam.end();

int start = 250;

if (ofGetFrameNum() > start) {

ostringstream os;

os << setw(4) << 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::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/Insta20241030

2025年11月
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