openframeworks – ページ 483 – プログラミング de 落描き

2019年8月24日

Many heart. openFrameworks

[ Video ]

[ About ]
沢山のハート。

Many heart.

[ 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) {};

	glm::vec2 make_point(float theta);
};

#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) {};

glm::vec2 make_point(float theta);

};

#include "ofApp.h"	

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

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

	ofBackground(239);
	ofSetColor(39);
}

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

	ofSeedRandom(39);
}

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


	for (int i = 0; i < 50; i++) {

		auto location = glm::vec2(ofRandom(ofGetWidth()), ((int)ofRandom(ofGetHeight() + ofGetFrameNum()) % (ofGetHeight() + 100) - 50));
		auto scale = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, 1, 3);

		ofPushMatrix();
		ofTranslate(location);
		ofRotate(ofRandom(360));

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

			ofVertex(this->make_point(deg * DEG_TO_RAD) * scale);
		}
		ofEndShape(true);

		ofPopMatrix();
	}
}

//--------------------------------------------------------------
//Reference by https://twitter.com/shiffman/status/1095764239665512453
glm::vec2 ofApp::make_point(float theta) {

	float x = 16 * (pow(sin(theta), 3));
	float y = 13 * cos(theta) - 5 * cos(2 * theta) - 2 * cos(3 * theta) - cos(4 * theta);
	return glm::vec2(x, -y);
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(39);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

for (int i = 0; i < 50; i++) {

auto location = glm::vec2(ofRandom(ofGetWidth()), ((int)ofRandom(ofGetHeight() + ofGetFrameNum()) % (ofGetHeight() + 100) - 50));

auto scale = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, 1, 3);

ofPushMatrix();

ofTranslate(location);

ofRotate(ofRandom(360));

ofBeginShape();

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

ofVertex(this->make_point(deg * DEG_TO_RAD) * scale);

}

ofEndShape(true);

ofPopMatrix();

}

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

//Reference by https://twitter.com/shiffman/status/1095764239665512453

glm::vec2 ofApp::make_point(float theta) {

float x = 16 * (pow(sin(theta), 3));

float y = 13 * cos(theta) - 5 * cos(2 * theta) - 2 * cos(3 * theta) - cos(4 * theta);

return glm::vec2(x, -y);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190824

2019年8月23日2019年8月23日

Rotating alphabet. openFrameworks

[ Video ]

[ About ]
回転アルファベット。

Rotating alphabet.

[ 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) {};

	vector<ofPath> chara_path;
};

#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) {};

vector<ofPath> chara_path;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(39);
	
	ofTrueTypeFont font;
	font.loadFont("fonts/Kazesawa-Bold.ttf", 100, true, true, true);

	for (char c = 'A'; c <= 'Z'; c++) {

		this->chara_path.push_back(font.getCharacterAsPoints(c, true, false));
	}
}
//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);
}

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

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

	auto outer = 0;
	for (auto radius = 80; radius < ofGetWidth(); radius++) {

		auto deg_span = 14;
		auto font_size = (2 * PI * radius / 360) * deg_span;

		if (outer < radius - font_size * 0.5) {

			ofGetFill() ? ofNoFill() : ofFill();
			ofRotate(ofGetFrameNum() * 0.1);
			int char_index = 0;

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

				auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
				char_index = (char_index + 1) % this->chara_path.size();

				ofPushMatrix();
				ofTranslate(location);
				ofRotate(deg + 90);

				auto outline = this->chara_path[char_index].getOutline();

				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 vertices_index = 0; vertices_index < vertices.size(); vertices_index++) {

						auto point = (vertices[vertices_index] / 100 * font_size) + glm::vec2(font_size * -0.5, font_size * 0.5);
						ofVertex(point);
					}
				}
				ofEndShape(true);

				ofPopMatrix();
			}

			outer = radius + font_size * 0.5;
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetColor(39);

ofTrueTypeFont font;

font.loadFont("fonts/Kazesawa-Bold.ttf", 100, true, true, true);

for (char c = 'A'; c <= 'Z'; c++) {

this->chara_path.push_back(font.getCharacterAsPoints(c, true, false));

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

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

ofNoFill();

auto outer = 0;

for (auto radius = 80; radius < ofGetWidth(); radius++) {

auto deg_span = 14;

auto font_size = (2 * PI * radius / 360) * deg_span;

if (outer < radius - font_size * 0.5) {

ofGetFill() ? ofNoFill() : ofFill();

ofRotate(ofGetFrameNum() * 0.1);

int char_index = 0;

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

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

char_index = (char_index + 1) % this->chara_path.size();

ofPushMatrix();

ofTranslate(location);

ofRotate(deg + 90);

auto outline = this->chara_path[char_index].getOutline();

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 vertices_index = 0; vertices_index < vertices.size(); vertices_index++) {

auto point = (vertices[vertices_index] / 100 * font_size) + glm::vec2(font_size * -0.5, font_size * 0.5);

ofVertex(point);

}

ofEndShape(true);

ofPopMatrix();

}

outer = radius + font_size * 0.5;

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190823

2019年8月22日2019年8月22日

Updown hexagon. openFrameworks

[ Video ]

[ About ]
上下する六角形。

Updown hexagon.

[ 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_hexagon(glm::vec2 location, float radius);

	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 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_hexagon(glm::vec2 location, float radius);

ofEasyCam cam;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(39);
	ofSetLineWidth(3);
	ofEnableDepthTest();
}
//--------------------------------------------------------------
void ofApp::update() {

}

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

	this->cam.begin();
	
	auto radius = 15;
	auto flag = true;
	float sqrt_3 = sqrt(3);
	for (float y = -ofGetHeight() * 0.5 - radius; y < ofGetHeight() * 0.5 + radius; y += radius * 1.5) {

		for (float x = -ofGetWidth() * 0.5 - radius; x < ofGetWidth() * 0.5 + radius; x += radius * sqrt_3) {

			auto location = flag ? glm::vec2(x, y) : glm::vec2(x + radius * sqrt_3 * 0.5, y);
			this->draw_hexagon(location, radius);
		}

		flag = !flag;
	}

	this->cam.end();
}

//--------------------------------------------------------------
void ofApp::draw_hexagon(glm::vec2 location, float radius) {

	ofPushMatrix();
	ofTranslate(location);

	auto noise_value = ofNoise(location.x * 0.05, location.y * 0.05, ofGetFrameNum() * 0.005);
	auto threshold = 0.68;
	auto z = 0;
	auto height = 50;
	if (noise_value > threshold) {
		
		z = ofMap(noise_value, threshold, 1, 0, height);
	}

	vector<glm::vec3> vertices, fill_vertices;
	for (int deg = 30; deg <= 390; deg += 60) {

		vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z));
		fill_vertices.push_back(glm::vec3(radius * 0.999 * cos(deg * DEG_TO_RAD), radius * sin(deg * 0.999 * DEG_TO_RAD), z));
	}

	ofFill();
	ofSetColor(ofMap(z, 0, height, 39, 139));
	ofBeginShape();
	ofVertices(fill_vertices);
	ofEndShape(true);

	ofNoFill();
	ofSetColor(ofMap(z, 0, height, 239, 39));
	ofBeginShape();
	ofVertices(vertices);
	ofEndShape(true);

	ofPopMatrix();
}

//--------------------------------------------------------------
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(3);

ofEnableDepthTest();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

auto radius = 15;

auto flag = true;

float sqrt_3 = sqrt(3);

for (float y = -ofGetHeight() * 0.5 - radius; y < ofGetHeight() * 0.5 + radius; y += radius * 1.5) {

for (float x = -ofGetWidth() * 0.5 - radius; x < ofGetWidth() * 0.5 + radius; x += radius * sqrt_3) {

auto location = flag ? glm::vec2(x, y) : glm::vec2(x + radius * sqrt_3 * 0.5, y);

this->draw_hexagon(location, radius);

}

flag = !flag;

}

this->cam.end();

}

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

void ofApp::draw_hexagon(glm::vec2 location, float radius) {

ofPushMatrix();

ofTranslate(location);

auto noise_value = ofNoise(location.x * 0.05, location.y * 0.05, ofGetFrameNum() * 0.005);

auto threshold = 0.68;

auto z = 0;

auto height = 50;

if (noise_value > threshold) {

z = ofMap(noise_value, threshold, 1, 0, height);

}

vector<glm::vec3> vertices, fill_vertices;

for (int deg = 30; deg <= 390; deg += 60) {

vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z));

fill_vertices.push_back(glm::vec3(radius * 0.999 * cos(deg * DEG_TO_RAD), radius * sin(deg * 0.999 * DEG_TO_RAD), z));

}

ofFill();

ofSetColor(ofMap(z, 0, height, 39, 139));

ofBeginShape();

ofVertices(fill_vertices);

ofEndShape(true);

ofNoFill();

ofSetColor(ofMap(z, 0, height, 239, 39));

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190822

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