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2021年4月19日2021年4月19日

Connection. Draw by openFrameworks

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Connection.

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#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;

	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) {};

ofEasyCam cam;

ofMesh mesh;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofSetColor(39);
	ofSetLineWidth(1.2);
	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);
	
	this->mesh.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
}

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

	this->mesh.clear();

	int len = 20;
	auto threshold = len * sqrt(2);

	for (int base_x = -220; base_x <= 220; base_x += 220) {

		for (int base_y = -220; base_y <= 220; base_y += 220) {

			vector<glm::vec3> vertices;
			for (int x = -100; x <= 100; x += len) {

				for (int y = -100; y <= 100; y += len) {

					auto noise_value = ofNoise((base_x + x) * 0.008, (base_y + y) * 0.008, ofGetFrameNum() * 0.005);

					if (noise_value > 0.55) {

						vertices.push_back(glm::vec3(x + base_x, base_y + y, 0));
					}
				}
			}

			for (int i = 0; i < vertices.size(); i++) {

				int index = -1;
				for (int k = i + 1; k < vertices.size(); k++) {

					if (glm::distance(vertices[i], vertices[k]) <= threshold) {

						if (index < 0) {

							this->mesh.addVertex(vertices[i]);
							index = this->mesh.getNumVertices() - 1;
						}
						this->mesh.addVertex(vertices[k]);

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

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

	ofTranslate(ofGetWindowSize() * 0.5);

	ofNoFill();
	for (int base_x = -220; base_x <= 220; base_x += 220) {

		for (int base_y = -220; base_y <= 220; base_y += 220) {
	
			ofDrawRectangle(base_x, base_y, 200, 200);
		}
	}

	this->mesh.drawWireframe();

	ofFill();
	for (auto& vertex : this->mesh.getVertices()) {

		ofDrawCircle(vertex, 3);
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetColor(39);

ofSetLineWidth(1.2);

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

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

}

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

void ofApp::update() {

this->mesh.clear();

int len = 20;

auto threshold = len * sqrt(2);

for (int base_x = -220; base_x <= 220; base_x += 220) {

for (int base_y = -220; base_y <= 220; base_y += 220) {

vector<glm::vec3> vertices;

for (int x = -100; x <= 100; x += len) {

for (int y = -100; y <= 100; y += len) {

auto noise_value = ofNoise((base_x + x) * 0.008, (base_y + y) * 0.008, ofGetFrameNum() * 0.005);

if (noise_value > 0.55) {

vertices.push_back(glm::vec3(x + base_x, base_y + y, 0));

}

for (int i = 0; i < vertices.size(); i++) {

int index = -1;

for (int k = i + 1; k < vertices.size(); k++) {

if (glm::distance(vertices[i], vertices[k]) <= threshold) {

if (index < 0) {

this->mesh.addVertex(vertices[i]);

index = this->mesh.getNumVertices() - 1;

}

this->mesh.addVertex(vertices[k]);

this->mesh.addIndex(index);

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

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

ofNoFill();

for (int base_x = -220; base_x <= 220; base_x += 220) {

for (int base_y = -220; base_y <= 220; base_y += 220) {

ofDrawRectangle(base_x, base_y, 200, 200);

}

this->mesh.drawWireframe();

ofFill();

for (auto& vertex : this->mesh.getVertices()) {

ofDrawCircle(vertex, 3);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
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2021年4月18日

Arrow train. Draw by openFrameworks

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Arrow train.

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#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_arrow(glm::vec2 location, glm::vec2 next_location, float size, ofColor 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 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 color);

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofSetColor(39);
	ofSetLineWidth(2);
}

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

	ofSeedRandom(39);
}

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

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

	for (int i = 0; i < 1; i++) {

		auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));
		for (int k = 0; k < 30; k++) {

			auto location = glm::vec2(ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.008 + k * 0.08), 0, 1, -300, 300), ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.008 + k * 0.08), 0, 1, -300, 300));
			auto next = glm::vec2(ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + 1) * 0.008 + k * 0.08), 0, 1, -300, 300), ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + 1) * 0.008 + k * 0.08), 0, 1, -300, 300));

			ofColor color = k < 15 ? ofColor(ofMap(k, 0, 15, 239, 39)) : ofColor(39);
			this->draw_arrow(location, next, 30, color);
		}
	}
}

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

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

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

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

	ofSetColor(239);
	ofNoFill();
	ofBeginShape();
	ofVertex(location + glm::vec2(size * cos(angle), size * sin(angle)));
	ofVertex(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)));
	ofVertex(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)));
	ofEndShape();

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

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetColor(39);

ofSetLineWidth(2);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

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

for (int i = 0; i < 1; i++) {

auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));

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

auto location = glm::vec2(ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.008 + k * 0.08), 0, 1, -300, 300), ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.008 + k * 0.08), 0, 1, -300, 300));

auto next = glm::vec2(ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + 1) * 0.008 + k * 0.08), 0, 1, -300, 300), ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + 1) * 0.008 + k * 0.08), 0, 1, -300, 300));

ofColor color = k < 15 ? ofColor(ofMap(k, 0, 15, 239, 39)) : ofColor(39);

this->draw_arrow(location, next, 30, color);

}

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

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

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

ofSetColor(color);

ofFill();

ofBeginShape();

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

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

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

ofEndShape();

ofBeginShape();

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

ofVertex(location + 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);

ofVertex(location + 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);

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

ofEndShape();

ofSetColor(239);

ofNoFill();

ofBeginShape();

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

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

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

ofEndShape();

ofBeginShape();

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

ofVertex(location + 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);

ofVertex(location + 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);

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

ofEndShape();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210418

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2021年4月17日

Ring of number. Draw by openFrameworks

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[ About ]
Ring of number.

[ 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) {};

	ofEasyCam cam;
	vector<ofPath> path_list;
};

#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) {};

ofEasyCam cam;

vector<ofPath> path_list;

};

#include "ofApp.h"	

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

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

	ofBackground(239);
	ofSetColor(39);
	ofSetLineWidth(2);
	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);
	ofEnableDepthTest();

	ofTrueTypeFont font;
	font.loadFont("fonts/Kazesawa-Bold.ttf", 28, true, true, true);

	string word = "1234567890";
	for (int i = 0; i < (int)word.size(); i++) {

		this->path_list.push_back(font.getCharacterAsPoints(word[i], true, false));
	}
}

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

	ofSeedRandom(39);
}

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

	this->cam.begin();

	ofFill();
	ofSetColor(39);
	ofDrawSphere(glm::vec3(), 80);

	for (int k = 0; k < 10; k++) {

		auto radius = 100 + k * 20;
		for (int deg = 0; deg < 360; deg += 8) {

			auto location = glm::vec3(0, 0, -radius);
			auto rotation_y = glm::rotate(glm::mat4(), (float)(deg * DEG_TO_RAD), glm::vec3(0, 1, 0));
			location = glm::vec4(location, 0) * rotation_y;

			ofPushMatrix();
			ofTranslate(location);
			ofRotateY(180 - deg);
			ofRotateX(180);

			int noise_index = ofMap(ofNoise(radius * 0.005 + deg * 0.005 + ofGetFrameNum() * 0.02), 0, 1, 0, path_list.size());
			int tmp_size = (2 * radius * PI) / 36;
			auto outline = path_list[noise_index].getOutline();

			ofSetColor(39);
			ofFill();
			ofBeginShape();
			for (int line_index = 0; line_index < outline.size(); line_index++) {

				if (line_index != 0) { ofNextContour(true); }

				auto vertices = outline[line_index].getVertices();
				for (int i = 0; i < vertices.size(); i++) {

					ofVertex((vertices[i] / 28 * tmp_size) + glm::vec2(tmp_size * -0.5, tmp_size * 0.5));
				}
			}
			ofEndShape(true);

			ofSetColor(239);
			ofNoFill();
			ofBeginShape();
			for (int line_index = 0; line_index < outline.size(); line_index++) {

				if (line_index != 0) { ofNextContour(true); }

				auto vertices = outline[line_index].getVertices();
				for (int i = 0; i < vertices.size(); i++) {

					ofVertex((vertices[i] / 28 * tmp_size) + glm::vec2(tmp_size * -0.5, tmp_size * 0.5));
				}
			}
			ofEndShape(true);

			ofPopMatrix();
		}
	}

	this->cam.end();
}

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

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

100

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(39);

ofSetLineWidth(2);

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

ofEnableDepthTest();

ofTrueTypeFont font;

font.loadFont("fonts/Kazesawa-Bold.ttf", 28, true, true, true);

string word = "1234567890";

for (int i = 0; i < (int)word.size(); i++) {

this->path_list.push_back(font.getCharacterAsPoints(word[i], true, false));

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofFill();

ofSetColor(39);

ofDrawSphere(glm::vec3(), 80);

for (int k = 0; k < 10; k++) {

auto radius = 100 + k * 20;

for (int deg = 0; deg < 360; deg += 8) {

auto location = glm::vec3(0, 0, -radius);

auto rotation_y = glm::rotate(glm::mat4(), (float)(deg * DEG_TO_RAD), glm::vec3(0, 1, 0));

location = glm::vec4(location, 0) * rotation_y;

ofPushMatrix();

ofTranslate(location);

ofRotateY(180 - deg);

ofRotateX(180);

int noise_index = ofMap(ofNoise(radius * 0.005 + deg * 0.005 + ofGetFrameNum() * 0.02), 0, 1, 0, path_list.size());

int tmp_size = (2 * radius * PI) / 36;

auto outline = path_list[noise_index].getOutline();

ofSetColor(39);

ofFill();

ofBeginShape();

for (int line_index = 0; line_index < outline.size(); line_index++) {

if (line_index != 0) { ofNextContour(true); }

auto vertices = outline[line_index].getVertices();

for (int i = 0; i < vertices.size(); i++) {

ofVertex((vertices[i] / 28 * tmp_size) + glm::vec2(tmp_size * -0.5, tmp_size * 0.5));

}

ofEndShape(true);

ofSetColor(239);

ofNoFill();

ofBeginShape();

for (int line_index = 0; line_index < outline.size(); line_index++) {

if (line_index != 0) { ofNextContour(true); }

auto vertices = outline[line_index].getVertices();

for (int i = 0; i < vertices.size(); i++) {

ofVertex((vertices[i] / 28 * tmp_size) + glm::vec2(tmp_size * -0.5, tmp_size * 0.5));

}

ofEndShape(true);

ofPopMatrix();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210417

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