openFrameworks – ページ 193 – プログラミング de 落描き

2022年10月7日

Arrows on circle. Draw by openFrameworks

[ Video ]

[ About ]
矢印円陣。

[ 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 target, float size, ofColor fill_color, ofColor no_fill_color);

	float noise_param;
};

#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 target, float size, ofColor fill_color, ofColor no_fill_color);

float noise_param;

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openFrameworks");

	ofBackground(0);
	ofSetLineWidth(2);
}

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

	ofSeedRandom(39);

	if (ofGetFrameNum() % 60 < 35) {

		this->noise_param += ofMap(ofGetFrameNum() % 60, 0, 35, 0.14, 0);
	}
}

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

	ofPushMatrix();
	ofTranslate(ofGetWindowSize() * 0.5);

	for (float radius = 100; radius <= 350; radius += 100) {

		float size = (2 * PI * radius) / 360 * 10;
		for (int deg = 0; deg < 360; deg += 10) {

			
			auto base_location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
			auto noise_location = glm::vec2(100 * cos(deg * DEG_TO_RAD), 100 * sin(deg * DEG_TO_RAD));
			auto noise_value = ofNoise(glm::vec3(base_location * 0.005, this->noise_param));
			auto noise_radius = radius + ofMap(noise_value, 0, 1, -75, 75);

			this->draw_arrow(base_location, glm::vec2(noise_radius * cos(deg * DEG_TO_RAD), noise_radius * sin(deg * DEG_TO_RAD)), size, ofColor(0), ofColor(255));
		}
	}

	ofPopMatrix();
}

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

	auto angle = std::atan2(target.y - location.y, target.x - location.x);
	auto distance = glm::distance(target, location);

	ofPushMatrix();
	ofTranslate(target);

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

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

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

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

	ofPopMatrix();
}
//--------------------------------------------------------------
int main() {

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofSetLineWidth(2);

}

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

void ofApp::update() {

ofSeedRandom(39);

if (ofGetFrameNum() % 60 < 35) {

this->noise_param += ofMap(ofGetFrameNum() % 60, 0, 35, 0.14, 0);

}

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

void ofApp::draw() {

ofPushMatrix();

ofTranslate(ofGetWindowSize() * 0.5);

for (float radius = 100; radius <= 350; radius += 100) {

float size = (2 * PI * radius) / 360 * 10;

for (int deg = 0; deg < 360; deg += 10) {

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

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

auto noise_value = ofNoise(glm::vec3(base_location * 0.005, this->noise_param));

auto noise_radius = radius + ofMap(noise_value, 0, 1, -75, 75);

this->draw_arrow(base_location, glm::vec2(noise_radius * cos(deg * DEG_TO_RAD), noise_radius * sin(deg * DEG_TO_RAD)), size, ofColor(0), ofColor(255));

}

ofPopMatrix();

}

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

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

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

auto distance = glm::distance(target, location);

ofPushMatrix();

ofTranslate(target);

ofSetColor(fill_color);

ofFill();

ofBeginShape();

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

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

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

ofEndShape();

ofBeginShape();

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

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

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

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

ofEndShape();

ofSetColor(no_fill_color);

ofNoFill();

ofBeginShape();

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

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

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

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

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

ofEndShape();

ofBeginShape();

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

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

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

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

ofEndShape();

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20221007

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2022年10月6日

Connect circles. Draw by openFrameworks

[ Video ]

[ About ]
円をつなぐ。

[ 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) {};

	ofMesh mesh;
};

#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) {};

ofMesh mesh;

};

#include "ofApp.h"

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

	ofSetWindowTitle("openFrameworks");
	ofSetFrameRate(30);

	ofBackground(0);
	ofSetLineWidth(3.5);

	this->mesh.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
}

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

	ofSeedRandom(39);
	this->mesh.clear();

	auto radius = 15;
	for (int x = -300; x <= 300; x += 60) {

		for (int y = -300; y <= 300; y += 60) {

			int deg = ofMap(ofNoise(x * 0.0035, y * 0.0035, ofGetFrameNum() * 0.0005), 0, 1, 0, 720);
			int deg_param = deg % 90;
			deg = deg / 90 * 90;
			if (deg_param > 85) {

				deg += ofMap(deg_param, 85, 90, 0, 90);
			}

			int start_index = this->mesh.getNumVertices();
			for (int circle_deg = 0; circle_deg < 360; circle_deg += 2) {

				this->mesh.addVertex(glm::vec3(x + radius * cos(circle_deg * DEG_TO_RAD), y + radius * sin(circle_deg * DEG_TO_RAD), 0));
				if (circle_deg > 0) {

					this->mesh.addIndex(this->mesh.getNumVertices() - 1);
					this->mesh.addIndex(this->mesh.getNumVertices() - 2);
				}
			}

			this->mesh.addIndex(this->mesh.getNumVertices() - 1);
			this->mesh.addIndex(start_index);

			this->mesh.addVertex(glm::vec3(x + radius * cos(deg * DEG_TO_RAD), y + radius * sin(deg * DEG_TO_RAD), 0));
			this->mesh.addVertex(glm::vec3(x + radius * 2 * cos(deg * DEG_TO_RAD), y + radius * 2 * sin(deg * DEG_TO_RAD), 0));

			this->mesh.addIndex(this->mesh.getNumVertices() - 1);
			this->mesh.addIndex(this->mesh.getNumVertices() - 2);

			this->mesh.addVertex(glm::vec3(x + radius * cos((deg + 180) * DEG_TO_RAD), y + radius * sin((deg + 180) * DEG_TO_RAD), 0));
			this->mesh.addVertex(glm::vec3(x + radius * 2 * cos((deg + 180) * DEG_TO_RAD), y + radius * 2 * sin((deg + 180) * DEG_TO_RAD), 0));

			this->mesh.addIndex(this->mesh.getNumVertices() - 1);
			this->mesh.addIndex(this->mesh.getNumVertices() - 2);
		}
	}

	ofColor color;
	for (int i = 0; i < this->mesh.getNumVertices(); i++) {

		color.setHsb(ofMap(ofNoise(this->mesh.getVertex(i) * 0.0035), 0, 1, 180, 255), 200, 255);
		this->mesh.addColor(color);
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	this->mesh.drawWireframe();
	
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetWindowTitle("openFrameworks");

ofSetFrameRate(30);

ofBackground(0);

ofSetLineWidth(3.5);

this->mesh.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

}

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

void ofApp::update() {

ofSeedRandom(39);

this->mesh.clear();

auto radius = 15;

for (int x = -300; x <= 300; x += 60) {

for (int y = -300; y <= 300; y += 60) {

int deg = ofMap(ofNoise(x * 0.0035, y * 0.0035, ofGetFrameNum() * 0.0005), 0, 1, 0, 720);

int deg_param = deg % 90;

deg = deg / 90 * 90;

if (deg_param > 85) {

deg += ofMap(deg_param, 85, 90, 0, 90);

}

int start_index = this->mesh.getNumVertices();

for (int circle_deg = 0; circle_deg < 360; circle_deg += 2) {

this->mesh.addVertex(glm::vec3(x + radius * cos(circle_deg * DEG_TO_RAD), y + radius * sin(circle_deg * DEG_TO_RAD), 0));

if (circle_deg > 0) {

this->mesh.addIndex(this->mesh.getNumVertices() - 1);

this->mesh.addIndex(this->mesh.getNumVertices() - 2);

}

this->mesh.addIndex(this->mesh.getNumVertices() - 1);

this->mesh.addIndex(start_index);

this->mesh.addVertex(glm::vec3(x + radius * cos(deg * DEG_TO_RAD), y + radius * sin(deg * DEG_TO_RAD), 0));

this->mesh.addVertex(glm::vec3(x + radius * 2 * cos(deg * DEG_TO_RAD), y + radius * 2 * sin(deg * DEG_TO_RAD), 0));

this->mesh.addIndex(this->mesh.getNumVertices() - 1);

this->mesh.addIndex(this->mesh.getNumVertices() - 2);

this->mesh.addVertex(glm::vec3(x + radius * cos((deg + 180) * DEG_TO_RAD), y + radius * sin((deg + 180) * DEG_TO_RAD), 0));

this->mesh.addVertex(glm::vec3(x + radius * 2 * cos((deg + 180) * DEG_TO_RAD), y + radius * 2 * sin((deg + 180) * DEG_TO_RAD), 0));

this->mesh.addIndex(this->mesh.getNumVertices() - 1);

this->mesh.addIndex(this->mesh.getNumVertices() - 2);

}

ofColor color;

for (int i = 0; i < this->mesh.getNumVertices(); i++) {

color.setHsb(ofMap(ofNoise(this->mesh.getVertex(i) * 0.0035), 0, 1, 180, 255), 200, 255);

this->mesh.addColor(color);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

this->mesh.drawWireframe();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20221006

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2022年10月5日

many dango brothers. Draw by openFrameworks

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[ About ]
だんご沢さん兄弟

[ 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) {};
};

#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) {};

};

#include "ofApp.h"

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

	ofSetWindowTitle("openFrameworks");
	ofSetFrameRate(30);

	ofBackground(255);
	ofSetColor(0);
	ofSetLineWidth(2);
	ofNoFill();
}

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

	ofSeedRandom(39);
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	auto radius = 10;
	ofColor color;
	for (int x = -300; x <= 300; x += 30) {

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

			ofPushMatrix();
			ofTranslate(x, y);

			int deg = ofMap(ofNoise(x * 0.0035, y * 0.0035, ofGetFrameNum() * 0.0005), 0, 1, 0, 720);
			int deg_param = deg % 90;
			deg = deg / 90 * 90;
			if (deg_param > 85) {
				
				deg += ofMap(deg_param, 85, 90, 0, 90);
			}

			ofDrawCircle(glm::vec2(), radius);
			ofDrawLine(
				glm::vec2(radius * 1.85 * cos(deg * DEG_TO_RAD), radius * 1.85 * sin(deg * DEG_TO_RAD)),
				glm::vec2(radius * 1.85 * cos((deg + 180) * DEG_TO_RAD), radius * 1.85  * sin((deg + 180) * DEG_TO_RAD)));

			ofPopMatrix();
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetWindowTitle("openFrameworks");

ofSetFrameRate(30);

ofBackground(255);

ofSetColor(0);

ofSetLineWidth(2);

ofNoFill();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

auto radius = 10;

ofColor color;

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

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

ofPushMatrix();

ofTranslate(x, y);

int deg = ofMap(ofNoise(x * 0.0035, y * 0.0035, ofGetFrameNum() * 0.0005), 0, 1, 0, 720);

int deg_param = deg % 90;

deg = deg / 90 * 90;

if (deg_param > 85) {

deg += ofMap(deg_param, 85, 90, 0, 90);

}

ofDrawCircle(glm::vec2(), radius);

ofDrawLine(

glm::vec2(radius * 1.85 * cos(deg * DEG_TO_RAD), radius * 1.85 * sin(deg * DEG_TO_RAD)),

glm::vec2(radius * 1.85 * cos((deg + 180) * DEG_TO_RAD), radius * 1.85 * sin((deg + 180) * DEG_TO_RAD)));

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20221005

[ほしいものリスト]
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