openFrameworks – ページ 299 – プログラミング de 落描き

2023年2月11日

Circles on circle. Draw by openFrameworks

[ Video ]

[ About ]
円の上の円。

[ 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(30);
	ofSetWindowTitle("openFrameworks");

	ofBackground(0);
	ofSetColor(255);
}

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

}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	int radius = 230;
	int deg_span = 6;

	int mini_radius = 0;
	for (int radius = 60; radius <= 300; ) {

		ofFill();
		int mini_radius = (radius * 2 * PI) / 360 * deg_span;
		for (int deg = 0; deg < 360; deg += deg_span) {

			auto base_location = glm::vec2(cos(deg * DEG_TO_RAD) * 100, sin(deg * DEG_TO_RAD) * 100);
			auto noise_value = ofNoise(glm::vec3(base_location * 0.005, ofGetFrameNum() * 0.0075));
			auto noise_radius = ofMap(noise_value, 0, 1, radius * 0.75, radius * 1.25);

			ofDrawCircle(noise_radius * cos(deg * DEG_TO_RAD), noise_radius * sin(deg * DEG_TO_RAD), mini_radius * 0.4);
		}

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

			auto base_location = glm::vec2(cos(deg * DEG_TO_RAD) * 100, sin(deg * DEG_TO_RAD) * 100);
			auto noise_value = ofNoise(glm::vec3(base_location * 0.005, ofGetFrameNum() * 0.0075));
			auto noise_radius = ofMap(noise_value, 0, 1, radius * 0.75, radius * 1.25);

			ofVertex(glm::vec2((noise_radius + mini_radius * 1) * cos(deg * DEG_TO_RAD), (noise_radius + mini_radius * 1) * sin(deg * DEG_TO_RAD)));
		}
		ofEndShape(true);

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

			auto base_location = glm::vec2(cos(deg * DEG_TO_RAD) * 100, sin(deg * DEG_TO_RAD) * 100);
			auto noise_value = ofNoise(glm::vec3(base_location * 0.005, ofGetFrameNum() * 0.0075));
			auto noise_radius = ofMap(noise_value, 0, 1, radius * 0.75, radius * 1.25);

			ofVertex(glm::vec2((noise_radius - mini_radius * 1) * cos(deg * DEG_TO_RAD), (noise_radius - mini_radius * 1) * sin(deg * DEG_TO_RAD)));
		}
		ofEndShape(true);

		radius += mini_radius * 2;

	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofSetColor(255);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

int radius = 230;

int deg_span = 6;

int mini_radius = 0;

for (int radius = 60; radius <= 300; ) {

ofFill();

int mini_radius = (radius * 2 * PI) / 360 * deg_span;

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

auto base_location = glm::vec2(cos(deg * DEG_TO_RAD) * 100, sin(deg * DEG_TO_RAD) * 100);

auto noise_value = ofNoise(glm::vec3(base_location * 0.005, ofGetFrameNum() * 0.0075));

auto noise_radius = ofMap(noise_value, 0, 1, radius * 0.75, radius * 1.25);

ofDrawCircle(noise_radius * cos(deg * DEG_TO_RAD), noise_radius * sin(deg * DEG_TO_RAD), mini_radius * 0.4);

}

ofNoFill();

ofBeginShape();

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

auto base_location = glm::vec2(cos(deg * DEG_TO_RAD) * 100, sin(deg * DEG_TO_RAD) * 100);

auto noise_value = ofNoise(glm::vec3(base_location * 0.005, ofGetFrameNum() * 0.0075));

auto noise_radius = ofMap(noise_value, 0, 1, radius * 0.75, radius * 1.25);

ofVertex(glm::vec2((noise_radius + mini_radius * 1) * cos(deg * DEG_TO_RAD), (noise_radius + mini_radius * 1) * sin(deg * DEG_TO_RAD)));

}

ofEndShape(true);

ofBeginShape();

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

auto base_location = glm::vec2(cos(deg * DEG_TO_RAD) * 100, sin(deg * DEG_TO_RAD) * 100);

auto noise_value = ofNoise(glm::vec3(base_location * 0.005, ofGetFrameNum() * 0.0075));

auto noise_radius = ofMap(noise_value, 0, 1, radius * 0.75, radius * 1.25);

ofVertex(glm::vec2((noise_radius - mini_radius * 1) * cos(deg * DEG_TO_RAD), (noise_radius - mini_radius * 1) * sin(deg * DEG_TO_RAD)));

}

ofEndShape(true);

radius += mini_radius * 2;

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230211

2023年2月10日

Triangles. Draw by openFrameworks

[ Video ]

[ About ]
三角形ず。

[ 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(30);
	ofSetWindowTitle("openFrameworks");

	ofBackground(255);
	ofSetColor(0);
}

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

}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	int radius = 15;
	for (int x = -300; x <= 300; x += 30) {

		for (int y = -300; y <= 300; y += 30) {

			if (abs(x) <= 60 && abs(y) <= 60) { continue; }

			ofPushMatrix();
			ofTranslate(glm::vec2(x, y));

			auto noise_param = abs(x) > abs(y) ? abs(x) : abs(y);
			auto noise_value = ofNoise(noise_param * 0.005 - ofGetFrameNum() * 0.01);

			auto deg_start = atan2(-y, -x) * RAD_TO_DEG;
			if(noise_value > 0.4 && noise_value < 0.6){
			
				deg_start += ofMap(noise_value, 0.4, 0.6, 0, 360);
			}

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

				ofVertex(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
			}
			ofEndShape(true);

			ofPopMatrix();
		}
	}

}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(255);

ofSetColor(0);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

int radius = 15;

for (int x = -300; x <= 300; x += 30) {

for (int y = -300; y <= 300; y += 30) {

if (abs(x) <= 60 && abs(y) <= 60) { continue; }

ofPushMatrix();

ofTranslate(glm::vec2(x, y));

auto noise_param = abs(x) > abs(y) ? abs(x) : abs(y);

auto noise_value = ofNoise(noise_param * 0.005 - ofGetFrameNum() * 0.01);

auto deg_start = atan2(-y, -x) * RAD_TO_DEG;

if(noise_value > 0.4 && noise_value < 0.6){

deg_start += ofMap(noise_value, 0.4, 0.6, 0, 360);

}

ofBeginShape();

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

ofVertex(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

}

ofEndShape(true);

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230210

2023年2月9日

Soulfull. Draw by openFrameworks

[ Video ]

[ About ]
魂。

[ Source ]

#pragma once
#include "ofMain.h"
#include "ofxBox2d.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) {};

	float radius;
	ofxBox2d box2d;
	vector<shared_ptr<ofxBox2dCircle>> circles;
	vector<vector<glm::vec2>> log_list;
};

#pragma once

#include "ofMain.h"

#include "ofxBox2d.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) {};

float radius;

ofxBox2d box2d;

vector<shared_ptr<ofxBox2dCircle>> circles;

vector<vector<glm::vec2>> log_list;

};

#include "ofApp.h"

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

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

	ofBackground(255);
	ofEnableDepthTest();

	this->radius = 30;

	this->box2d.init();
	this->box2d.setGravity(0, 0);
	this->box2d.createBounds(30, 30, ofGetWidth() - 60, ofGetHeight() - 60);
	this->box2d.setFPS(60);
	this->box2d.registerGrabbing();

	for (int i = 0; i < 40; i++) {

		auto circle = make_shared<ofxBox2dCircle>();
		circle->setPhysics(0.5, 0.63, 0.1);
		circle->setup(this->box2d.getWorld(), ofRandom(30, ofGetWidth() - 30), ofRandom(30, ofGetHeight() - 30), this->radius);
		this->circles.push_back(circle);
		vector<glm::vec2> log;
		this->log_list.push_back(log);
	}
}

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

	ofSeedRandom(39);

	for (int i = 0; i < this->circles.size(); i++) {

		for (int j = i + 1; j < this->circles.size(); j++) {

			float distance = this->circles[i]->getPosition().distance(this->circles[j]->getPosition());
			if (distance < this->radius * 4) {

				this->circles[i]->addForce(this->circles[i]->getPosition() - this->circles[j]->getPosition(), ofMap(distance, this->radius, this->radius * 4, 1.6, 0.004));
				this->circles[j]->addForce(this->circles[j]->getPosition() - this->circles[i]->getPosition(), ofMap(distance, this->radius, this->radius * 4, 1.6, 0.004));
			}
		}
	}

	for (int i = 0; i < this->circles.size(); i++) {

		this->log_list[i].push_back(this->circles[i]->getPosition());
		while (this->log_list[i].size() > 25) {

			this->log_list[i].erase(this->log_list[i].begin());
		}
	}

	this->box2d.update();
}

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

	auto threshold = 110;
	int head_size = 8;

	ofColor color;
	ofSetLineWidth(1);

	vector<glm::vec2> locations;
	for (int i = 0; i < this->circles.size(); i++) {

		glm::vec2 location = this->circles[i]->getPosition();
		locations.push_back(location);

		auto hue = ofMap(i, 0, this->circles.size(), 0, 255);
		color.setHsb(hue, 255, 255);
		ofSetColor(color);

		if (this->log_list[i].size() < 2) continue;

		ofMesh mesh;
		vector<glm::vec3> right, left, frame;
		glm::vec3 last_location;
		float last_theta;

		for (int k = 0; k < this->log_list[i].size() - 1; k++) {

			auto location = glm::vec3(this->log_list[i][k], 0);
			auto next = glm::vec3(this->log_list[i][k + 1], 0);

			auto direction = next - location;
			auto theta = atan2(direction.y, direction.x);

			right.push_back(location + glm::vec3(ofMap(k, 0, this->log_list[i].size(), 0.1, head_size) * cos(theta + PI * 0.5), ofMap(k, 0, this->log_list[i].size(), 0.1, head_size) * sin(theta + PI * 0.5), 0));
			left.push_back(location + glm::vec3(ofMap(k, 0, this->log_list[i].size(), 0.1, head_size) * cos(theta - PI * 0.5), ofMap(k, 0, this->log_list[i].size(), 0.1, head_size) * sin(theta - PI * 0.5), 0));

			last_location = location;
			last_theta = theta;
		}

		for (int k = 0; k < right.size(); k++) {

			mesh.addVertex(left[k]);
			mesh.addVertex(right[k]);
		}

		for (int k = 0; k < mesh.getNumVertices() - 2; k += 2) {

			mesh.addIndex(k + 0); mesh.addIndex(k + 1); mesh.addIndex(k + 3);
			mesh.addIndex(k + 0); mesh.addIndex(k + 2); mesh.addIndex(k + 3);
		}

		auto tmp_head_size = ofMap(log_list[i].size() - 2, 0, log_list[i].size(), 0.1, head_size);
		mesh.addVertex(last_location);

		int index = mesh.getNumVertices();
		for (auto theta = last_theta - PI * 0.5; theta <= last_theta + PI * 0.5; theta += PI / 20) {

			mesh.addVertex(last_location + glm::vec3(tmp_head_size * cos(theta), tmp_head_size * sin(theta), 0));
		}

		for (int i = index; i < mesh.getNumVertices() - 1; i++) {

			mesh.addIndex(index); mesh.addIndex(i + 0); mesh.addIndex(i + 1);
		}

		mesh.draw();

		ofFill();
		ofDrawCircle(this->log_list[i].back(), 8);
	}

	ofSetColor(0);
	ofSetLineWidth(1);

	for (auto& location : locations) {

		int word_index = 0;
		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);

				ofPushMatrix();
				ofTranslate(location);

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

					ofVertex(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
				}
				ofEndShape();

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

				ofPopMatrix();
			}
		}
	}
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(255);

ofEnableDepthTest();

this->radius = 30;

this->box2d.init();

this->box2d.setGravity(0, 0);

this->box2d.createBounds(30, 30, ofGetWidth() - 60, ofGetHeight() - 60);

this->box2d.setFPS(60);

this->box2d.registerGrabbing();

for (int i = 0; i < 40; i++) {

auto circle = make_shared<ofxBox2dCircle>();

circle->setPhysics(0.5, 0.63, 0.1);

circle->setup(this->box2d.getWorld(), ofRandom(30, ofGetWidth() - 30), ofRandom(30, ofGetHeight() - 30), this->radius);

this->circles.push_back(circle);

vector<glm::vec2> log;

this->log_list.push_back(log);

}

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

void ofApp::update() {

ofSeedRandom(39);

for (int i = 0; i < this->circles.size(); i++) {

for (int j = i + 1; j < this->circles.size(); j++) {

float distance = this->circles[i]->getPosition().distance(this->circles[j]->getPosition());

if (distance < this->radius * 4) {

this->circles[i]->addForce(this->circles[i]->getPosition() - this->circles[j]->getPosition(), ofMap(distance, this->radius, this->radius * 4, 1.6, 0.004));

this->circles[j]->addForce(this->circles[j]->getPosition() - this->circles[i]->getPosition(), ofMap(distance, this->radius, this->radius * 4, 1.6, 0.004));

}

for (int i = 0; i < this->circles.size(); i++) {

this->log_list[i].push_back(this->circles[i]->getPosition());

while (this->log_list[i].size() > 25) {

this->log_list[i].erase(this->log_list[i].begin());

}

this->box2d.update();

}

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

void ofApp::draw() {

auto threshold = 110;

int head_size = 8;

ofColor color;

ofSetLineWidth(1);

vector<glm::vec2> locations;

for (int i = 0; i < this->circles.size(); i++) {

glm::vec2 location = this->circles[i]->getPosition();

locations.push_back(location);

auto hue = ofMap(i, 0, this->circles.size(), 0, 255);

color.setHsb(hue, 255, 255);

ofSetColor(color);

if (this->log_list[i].size() < 2) continue;

ofMesh mesh;

vector<glm::vec3> right, left, frame;

glm::vec3 last_location;

float last_theta;

for (int k = 0; k < this->log_list[i].size() - 1; k++) {

auto location = glm::vec3(this->log_list[i][k], 0);

auto next = glm::vec3(this->log_list[i][k + 1], 0);

auto direction = next - location;

auto theta = atan2(direction.y, direction.x);

right.push_back(location + glm::vec3(ofMap(k, 0, this->log_list[i].size(), 0.1, head_size) * cos(theta + PI * 0.5), ofMap(k, 0, this->log_list[i].size(), 0.1, head_size) * sin(theta + PI * 0.5), 0));

left.push_back(location + glm::vec3(ofMap(k, 0, this->log_list[i].size(), 0.1, head_size) * cos(theta - PI * 0.5), ofMap(k, 0, this->log_list[i].size(), 0.1, head_size) * sin(theta - PI * 0.5), 0));

last_location = location;

last_theta = theta;

}

for (int k = 0; k < right.size(); k++) {

mesh.addVertex(left[k]);

mesh.addVertex(right[k]);

}

for (int k = 0; k < mesh.getNumVertices() - 2; k += 2) {

mesh.addIndex(k + 0); mesh.addIndex(k + 1); mesh.addIndex(k + 3);

mesh.addIndex(k + 0); mesh.addIndex(k + 2); mesh.addIndex(k + 3);

}

auto tmp_head_size = ofMap(log_list[i].size() - 2, 0, log_list[i].size(), 0.1, head_size);

mesh.addVertex(last_location);

int index = mesh.getNumVertices();

for (auto theta = last_theta - PI * 0.5; theta <= last_theta + PI * 0.5; theta += PI / 20) {

mesh.addVertex(last_location + glm::vec3(tmp_head_size * cos(theta), tmp_head_size * sin(theta), 0));

}

for (int i = index; i < mesh.getNumVertices() - 1; i++) {

mesh.addIndex(index); mesh.addIndex(i + 0); mesh.addIndex(i + 1);

}

mesh.draw();

ofFill();

ofDrawCircle(this->log_list[i].back(), 8);

}

ofSetColor(0);

ofSetLineWidth(1);

for (auto& location : locations) {

int word_index = 0;

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);

ofPushMatrix();

ofTranslate(location);

ofNoFill();

ofBeginShape();

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

ofVertex(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

}

ofEndShape();

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

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

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230209

2025年7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