2025年5月 – ページ 2 – プログラミング de 落描き

2025年5月28日

Box by panel.

[ Video ]

[ About ]
パネルによるボックス。

[ 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) {};

	void draw_panel(vector<glm::vec3> vertices);

	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) {};

void draw_panel(vector<glm::vec3> vertices);

ofEasyCam cam;

};

#include "ofApp.h"

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

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

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

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

}

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

	int len = 300;
	int size = 15;
	float noise_span = 0.0025;

	this->cam.begin();
	ofRotateX(ofGetFrameNum() * 1.44);
	ofRotateY(ofGetFrameNum() * 2.88);

	for (int len = 300; len > 100; len -= size * 2) {

		for (int s_1 = len * -0.5; s_1 <= len * 0.5; s_1 += size) {

			for (int s_2 = len * -0.5; s_2 <= len * 0.5; s_2 += size) {

				vector<glm::vec3> vertices;
				auto p = (len + size) * 0.5;

				auto noise_value = ofNoise(p * noise_span, s_1 * noise_span, s_2 * noise_span, ofGetFrameNum() * 0.02);
				auto tmp_size = (noise_value > 0.45 && noise_value < 0.55) ? size : 0;

				vertices.clear();
				vertices.push_back(glm::vec3(p, s_1 - tmp_size * 0.5, s_2 - tmp_size * 0.5));
				vertices.push_back(glm::vec3(p, s_1 + tmp_size * 0.5, s_2 - tmp_size * 0.5));
				vertices.push_back(glm::vec3(p, s_1 + tmp_size * 0.5, s_2 + tmp_size * 0.5));
				vertices.push_back(glm::vec3(p, s_1 - tmp_size * 0.5, s_2 + tmp_size * 0.5));
				this->draw_panel(vertices);

				noise_value = ofNoise(-p * noise_span, s_1 * noise_span, s_2 * noise_span, ofGetFrameNum() * 0.02);
				tmp_size = (noise_value > 0.45 && noise_value < 0.55) ? size : 0;

				vertices.clear();
				vertices.push_back(glm::vec3(-p, s_1 - tmp_size * 0.5, s_2 - tmp_size * 0.5));
				vertices.push_back(glm::vec3(-p, s_1 + tmp_size * 0.5, s_2 - tmp_size * 0.5));
				vertices.push_back(glm::vec3(-p, s_1 + tmp_size * 0.5, s_2 + tmp_size * 0.5));
				vertices.push_back(glm::vec3(-p, s_1 - tmp_size * 0.5, s_2 + tmp_size * 0.5));
				this->draw_panel(vertices);

				noise_value = ofNoise(s_1 * noise_span, p * noise_span, s_2 * noise_span, ofGetFrameNum() * 0.02);
				tmp_size = (noise_value > 0.45 && noise_value < 0.55) ? size : 0;

				vertices.clear();
				vertices.push_back(glm::vec3(s_1 - tmp_size * 0.5, p, s_2 - tmp_size * 0.5));
				vertices.push_back(glm::vec3(s_1 + tmp_size * 0.5, p, s_2 - tmp_size * 0.5));
				vertices.push_back(glm::vec3(s_1 + tmp_size * 0.5, p, s_2 + tmp_size * 0.5));
				vertices.push_back(glm::vec3(s_1 - tmp_size * 0.5, p, s_2 + tmp_size * 0.5));
				this->draw_panel(vertices);

				noise_value = ofNoise(s_1 * noise_span, p * noise_span, s_2 * noise_span, ofGetFrameNum() * 0.02);
				tmp_size = (noise_value > 0.45 && noise_value < 0.55) ? size : 0;

				vertices.clear();
				vertices.push_back(glm::vec3(s_1 - tmp_size * 0.5, -p, s_2 - tmp_size * 0.5));
				vertices.push_back(glm::vec3(s_1 + tmp_size * 0.5, -p, s_2 - tmp_size * 0.5));
				vertices.push_back(glm::vec3(s_1 + tmp_size * 0.5, -p, s_2 + tmp_size * 0.5));
				vertices.push_back(glm::vec3(s_1 - tmp_size * 0.5, -p, s_2 + tmp_size * 0.5));
				this->draw_panel(vertices);

				noise_value = ofNoise(s_1 * noise_span, s_2 * noise_span, p * noise_span, ofGetFrameNum() * 0.02);
				tmp_size = (noise_value > 0.45 && noise_value < 0.55) ? size : 0;

				vertices.clear();
				vertices.push_back(glm::vec3(s_1 - tmp_size * 0.5, s_2 - tmp_size * 0.5, p));
				vertices.push_back(glm::vec3(s_1 + tmp_size * 0.5, s_2 - tmp_size * 0.5, p));
				vertices.push_back(glm::vec3(s_1 + tmp_size * 0.5, s_2 + tmp_size * 0.5, p));
				vertices.push_back(glm::vec3(s_1 - tmp_size * 0.5, s_2 + tmp_size * 0.5, p));
				this->draw_panel(vertices);

				noise_value = ofNoise(s_1 * noise_span, s_2 * noise_span, p * noise_span, ofGetFrameNum() * 0.02);
				tmp_size = (noise_value > 0.45 && noise_value < 0.55) ? size : 0;

				vertices.clear();
				vertices.push_back(glm::vec3(s_1 - tmp_size * 0.5, s_2 - tmp_size * 0.5, -p));
				vertices.push_back(glm::vec3(s_1 + tmp_size * 0.5, s_2 - tmp_size * 0.5, -p));
				vertices.push_back(glm::vec3(s_1 + tmp_size * 0.5, s_2 + tmp_size * 0.5, -p));
				vertices.push_back(glm::vec3(s_1 - tmp_size * 0.5, s_2 + tmp_size * 0.5, -p));
				this->draw_panel(vertices);
			}
		}
	}

	ofNoFill();
	ofSetColor(39);
	ofDrawBox(len + size);

	this->cam.end();

	/*
	int start = 275;
	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);
		}
	}
	*/
}

//--------------------------------------------------------------
void ofApp::draw_panel(vector<glm::vec3> vertices) {

	ofMesh face, line;
	face.addVertices(vertices);

	face.addIndex(0); face.addIndex(1); face.addIndex(2);
	face.addIndex(0); face.addIndex(2); face.addIndex(3);

	ofSetColor(239);
	face.draw();

	line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
	line.addVertices(vertices);

	line.addIndex(0); line.addIndex(1);
	line.addIndex(1); line.addIndex(2);
	line.addIndex(2); line.addIndex(3);
	line.addIndex(3); line.addIndex(0);

	ofSetColor(39);
	line.drawWireframe();
}

//--------------------------------------------------------------
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(239);

ofSetLineWidth(2);

ofEnableDepthTest();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

int len = 300;

int size = 15;

float noise_span = 0.0025;

this->cam.begin();

ofRotateX(ofGetFrameNum() * 1.44);

ofRotateY(ofGetFrameNum() * 2.88);

for (int len = 300; len > 100; len -= size * 2) {

for (int s_1 = len * -0.5; s_1 <= len * 0.5; s_1 += size) {

for (int s_2 = len * -0.5; s_2 <= len * 0.5; s_2 += size) {

vector<glm::vec3> vertices;

auto p = (len + size) * 0.5;

auto noise_value = ofNoise(p * noise_span, s_1 * noise_span, s_2 * noise_span, ofGetFrameNum() * 0.02);

auto tmp_size = (noise_value > 0.45 && noise_value < 0.55) ? size : 0;

vertices.clear();

vertices.push_back(glm::vec3(p, s_1 - tmp_size * 0.5, s_2 - tmp_size * 0.5));

vertices.push_back(glm::vec3(p, s_1 + tmp_size * 0.5, s_2 - tmp_size * 0.5));

vertices.push_back(glm::vec3(p, s_1 + tmp_size * 0.5, s_2 + tmp_size * 0.5));

vertices.push_back(glm::vec3(p, s_1 - tmp_size * 0.5, s_2 + tmp_size * 0.5));

this->draw_panel(vertices);

noise_value = ofNoise(-p * noise_span, s_1 * noise_span, s_2 * noise_span, ofGetFrameNum() * 0.02);

tmp_size = (noise_value > 0.45 && noise_value < 0.55) ? size : 0;

vertices.clear();

vertices.push_back(glm::vec3(-p, s_1 - tmp_size * 0.5, s_2 - tmp_size * 0.5));

vertices.push_back(glm::vec3(-p, s_1 + tmp_size * 0.5, s_2 - tmp_size * 0.5));

vertices.push_back(glm::vec3(-p, s_1 + tmp_size * 0.5, s_2 + tmp_size * 0.5));

vertices.push_back(glm::vec3(-p, s_1 - tmp_size * 0.5, s_2 + tmp_size * 0.5));

this->draw_panel(vertices);

noise_value = ofNoise(s_1 * noise_span, p * noise_span, s_2 * noise_span, ofGetFrameNum() * 0.02);

tmp_size = (noise_value > 0.45 && noise_value < 0.55) ? size : 0;

vertices.clear();

vertices.push_back(glm::vec3(s_1 - tmp_size * 0.5, p, s_2 - tmp_size * 0.5));

vertices.push_back(glm::vec3(s_1 + tmp_size * 0.5, p, s_2 - tmp_size * 0.5));

vertices.push_back(glm::vec3(s_1 + tmp_size * 0.5, p, s_2 + tmp_size * 0.5));

vertices.push_back(glm::vec3(s_1 - tmp_size * 0.5, p, s_2 + tmp_size * 0.5));

this->draw_panel(vertices);

noise_value = ofNoise(s_1 * noise_span, p * noise_span, s_2 * noise_span, ofGetFrameNum() * 0.02);

tmp_size = (noise_value > 0.45 && noise_value < 0.55) ? size : 0;

vertices.clear();

vertices.push_back(glm::vec3(s_1 - tmp_size * 0.5, -p, s_2 - tmp_size * 0.5));

vertices.push_back(glm::vec3(s_1 + tmp_size * 0.5, -p, s_2 - tmp_size * 0.5));

vertices.push_back(glm::vec3(s_1 + tmp_size * 0.5, -p, s_2 + tmp_size * 0.5));

vertices.push_back(glm::vec3(s_1 - tmp_size * 0.5, -p, s_2 + tmp_size * 0.5));

this->draw_panel(vertices);

noise_value = ofNoise(s_1 * noise_span, s_2 * noise_span, p * noise_span, ofGetFrameNum() * 0.02);

tmp_size = (noise_value > 0.45 && noise_value < 0.55) ? size : 0;

vertices.clear();

vertices.push_back(glm::vec3(s_1 - tmp_size * 0.5, s_2 - tmp_size * 0.5, p));

vertices.push_back(glm::vec3(s_1 + tmp_size * 0.5, s_2 - tmp_size * 0.5, p));

vertices.push_back(glm::vec3(s_1 + tmp_size * 0.5, s_2 + tmp_size * 0.5, p));

vertices.push_back(glm::vec3(s_1 - tmp_size * 0.5, s_2 + tmp_size * 0.5, p));

this->draw_panel(vertices);

noise_value = ofNoise(s_1 * noise_span, s_2 * noise_span, p * noise_span, ofGetFrameNum() * 0.02);

tmp_size = (noise_value > 0.45 && noise_value < 0.55) ? size : 0;

vertices.clear();

vertices.push_back(glm::vec3(s_1 - tmp_size * 0.5, s_2 - tmp_size * 0.5, -p));

vertices.push_back(glm::vec3(s_1 + tmp_size * 0.5, s_2 - tmp_size * 0.5, -p));

vertices.push_back(glm::vec3(s_1 + tmp_size * 0.5, s_2 + tmp_size * 0.5, -p));

vertices.push_back(glm::vec3(s_1 - tmp_size * 0.5, s_2 + tmp_size * 0.5, -p));

this->draw_panel(vertices);

}

ofNoFill();

ofSetColor(39);

ofDrawBox(len + size);

this->cam.end();

int start = 275;

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);

}

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

void ofApp::draw_panel(vector<glm::vec3> vertices) {

ofMesh face, line;

face.addVertices(vertices);

face.addIndex(0); face.addIndex(1); face.addIndex(2);

face.addIndex(0); face.addIndex(2); face.addIndex(3);

ofSetColor(239);

face.draw();

line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

line.addVertices(vertices);

line.addIndex(0); line.addIndex(1);

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

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

line.addIndex(3); line.addIndex(0);

ofSetColor(39);

line.drawWireframe();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20250528

2025年5月27日

Rotateing Arrows.

[ Video ]

[ About ]
回転矢印。

[ 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) {};

	void draw_arrow(glm::vec2 location, glm::vec2 next_location, float size, ofColor fill_color, ofColor no_fill_color);
};

#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) {};

void draw_arrow(glm::vec2 location, glm::vec2 next_location, float size, ofColor fill_color, ofColor no_fill_color);

};

#include "ofApp.h"

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

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

	ofBackground(39);
}

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

}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	for (auto radius = 20; radius <= 500; radius +=	10) {

		auto deg = ofMap(ofNoise(radius * 0.005 + ofGetFrameNum() * 0.01), 0, 1, -360, 360);
		auto next_deg = ofMap(ofNoise(radius * 0.005 + (ofGetFrameNum() + 1) * 0.01), 0, 1, -360, 360);

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

		ofSetColor(128);
		ofSetLineWidth(0.5);
		ofDrawLine(glm::vec2(0 * cos(deg * DEG_TO_RAD), 0 * sin(deg * DEG_TO_RAD)), glm::vec2(500 * cos(deg * DEG_TO_RAD), 500 * sin(deg * DEG_TO_RAD)));
		
		this->draw_arrow(location, next_location, ofMap(abs(radius), 50, 500, 10, 30), ofColor(239), ofColor(39));
	}

	/*
	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);
		}
	}
	*/
}

//--------------------------------------------------------------
void ofApp::draw_arrow(glm::vec2 location, glm::vec2 next_location, float size, ofColor fill_color, ofColor no_fill_color) {

	auto angle = std::atan2(next_location.y - location.y, next_location.x - location.x);

	ofSetColor(fill_color);
	ofFill();
	ofBeginShape();
	ofVertex(glm::vec2(size * 0.8 * cos(angle), size * 0.8 * sin(angle)) + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) + location);
	ofEndShape(true);

	ofBeginShape();
	ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5 + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5 + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 + location);
	ofEndShape(true);

	ofSetColor(no_fill_color);
	ofNoFill();
	ofSetLineWidth(2);
	ofBeginShape();
	ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) + location);
	ofVertex(glm::vec2(size * 0.8 * cos(angle), size * 0.8 * sin(angle)) + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 + location);
	ofEndShape();

	ofBeginShape();
	ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5 + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5 + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 + location);
	ofEndShape();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

for (auto radius = 20; radius <= 500; radius += 10) {

auto deg = ofMap(ofNoise(radius * 0.005 + ofGetFrameNum() * 0.01), 0, 1, -360, 360);

auto next_deg = ofMap(ofNoise(radius * 0.005 + (ofGetFrameNum() + 1) * 0.01), 0, 1, -360, 360);

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

auto next_location = glm::vec2(radius * cos(next_deg * DEG_TO_RAD), radius * sin(next_deg * DEG_TO_RAD));

ofSetColor(128);

ofSetLineWidth(0.5);

ofDrawLine(glm::vec2(0 * cos(deg * DEG_TO_RAD), 0 * sin(deg * DEG_TO_RAD)), glm::vec2(500 * cos(deg * DEG_TO_RAD), 500 * sin(deg * DEG_TO_RAD)));

this->draw_arrow(location, next_location, ofMap(abs(radius), 50, 500, 10, 30), ofColor(239), ofColor(39));

}

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);

}

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

void ofApp::draw_arrow(glm::vec2 location, glm::vec2 next_location, float size, ofColor fill_color, ofColor no_fill_color) {

auto angle = std::atan2(next_location.y - location.y, next_location.x - location.x);

ofSetColor(fill_color);

ofFill();

ofBeginShape();

ofVertex(glm::vec2(size * 0.8 * cos(angle), size * 0.8 * sin(angle)) + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) + location);

ofEndShape(true);

ofBeginShape();

ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5 + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5 + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 + location);

ofEndShape(true);

ofSetColor(no_fill_color);

ofNoFill();

ofSetLineWidth(2);

ofBeginShape();

ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) + location);

ofVertex(glm::vec2(size * 0.8 * cos(angle), size * 0.8 * sin(angle)) + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 + location);

ofEndShape();

ofBeginShape();

ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5 + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5 + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 + location);

ofEndShape();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20250527

2025年5月26日2025年5月26日

Circle of Arrows.

[ Video ]

[ About ]
矢印の輪。

[ 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 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) {};

	void draw_arrow(glm::vec2 location, glm::vec2 next_location, float size, ofColor fill_color, ofColor no_fill_color);
};

#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) {};

void draw_arrow(glm::vec2 location, glm::vec2 next_location, float size, ofColor fill_color, ofColor no_fill_color);

};

#include "ofApp.h"

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

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

	ofBackground(239);
}

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

}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	for (int deg = 0; deg < 360; deg += 5) {

		auto base_location = glm::vec2(cos(deg * DEG_TO_RAD), sin(deg * DEG_TO_RAD));
		auto radius = ofMap(ofNoise(glm::vec3(base_location * 2, ofGetFrameNum() * 0.015)), 0, 1, -100, 500);
		auto next_radius = ofMap(ofNoise(glm::vec3(base_location * 2, (ofGetFrameNum() + 1) * 0.015)), 0, 1, -100, 500);

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

		ofSetColor(128);
		ofSetLineWidth(0.5);
		ofDrawLine(glm::vec2(0 * cos(deg * DEG_TO_RAD), 0 * sin(deg * DEG_TO_RAD)), glm::vec2(500 * cos(deg * DEG_TO_RAD), 500 * sin(deg * DEG_TO_RAD)));
		
		this->draw_arrow(location, next_location, ofMap(abs(radius), 0, 500, 5, 50), ofColor(0), ofColor(255));
	}

	/*
	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);
		}
	}
	*/
}

//--------------------------------------------------------------
void ofApp::draw_arrow(glm::vec2 location, glm::vec2 next_location, float size, ofColor fill_color, ofColor no_fill_color) {

	auto angle = std::atan2(next_location.y - location.y, next_location.x - location.x);

	ofSetColor(fill_color);
	ofFill();
	ofBeginShape();
	ofVertex(glm::vec2(size * 0.8 * cos(angle), size * 0.8 * sin(angle)) + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) + location);
	ofEndShape(true);

	ofBeginShape();
	ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5 + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5 + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 + location);
	ofEndShape(true);

	ofSetColor(no_fill_color);
	ofNoFill();
	ofSetLineWidth(2);
	ofBeginShape();
	ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) + location);
	ofVertex(glm::vec2(size * 0.8 * cos(angle), size * 0.8 * sin(angle)) + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 + location);
	ofEndShape();

	ofBeginShape();
	ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5 + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5 + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 + location);
	ofEndShape();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

for (int deg = 0; deg < 360; deg += 5) {

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

auto radius = ofMap(ofNoise(glm::vec3(base_location * 2, ofGetFrameNum() * 0.015)), 0, 1, -100, 500);

auto next_radius = ofMap(ofNoise(glm::vec3(base_location * 2, (ofGetFrameNum() + 1) * 0.015)), 0, 1, -100, 500);

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

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

ofSetColor(128);

ofSetLineWidth(0.5);

ofDrawLine(glm::vec2(0 * cos(deg * DEG_TO_RAD), 0 * sin(deg * DEG_TO_RAD)), glm::vec2(500 * cos(deg * DEG_TO_RAD), 500 * sin(deg * DEG_TO_RAD)));

this->draw_arrow(location, next_location, ofMap(abs(radius), 0, 500, 5, 50), ofColor(0), ofColor(255));

}

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);

}

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

void ofApp::draw_arrow(glm::vec2 location, glm::vec2 next_location, float size, ofColor fill_color, ofColor no_fill_color) {

auto angle = std::atan2(next_location.y - location.y, next_location.x - location.x);

ofSetColor(fill_color);

ofFill();

ofBeginShape();

ofVertex(glm::vec2(size * 0.8 * cos(angle), size * 0.8 * sin(angle)) + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) + location);

ofEndShape(true);

ofBeginShape();

ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5 + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5 + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 + location);

ofEndShape(true);

ofSetColor(no_fill_color);

ofNoFill();

ofSetLineWidth(2);

ofBeginShape();

ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) + location);

ofVertex(glm::vec2(size * 0.8 * cos(angle), size * 0.8 * sin(angle)) + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 + location);

ofEndShape();

ofBeginShape();

ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5 + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5 + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 + location);

ofEndShape();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20250526

2025年5月
月	火	水	木	金	土	日
			1	2	3	4
5	6	7	8	9	10	11
12	13	14	15	16	17	18
19	20	21	22	23	24	25
26	27	28	29	30	31