triangle – ページ 6 – プログラミング de 落描き

2019年3月29日2019年3月29日

Line on triangle. openFrameworks

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[ About ]
三角形の上の線

Line on triangle.

[ 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) {};

	glm::vec2 make_point(float radius, int deg);
};

#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) {};

glm::vec2 make_point(float radius, int deg);

};

#include "ofApp.h"

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

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

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

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

	ofSeedRandom(39);
}

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

	ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5 + 80);
	ofRotate(270);

	for (int i = 0; i < 250; i++) {

		float radius = ofRandom(160, 400);
		vector<glm::vec2> vertices;
		int start = ofRandom(1000) + ofGetFrameNum() * ofRandom(1, 3);
		for (int deg = start; deg <= start + ofRandom(15, 100); deg++) {

			vertices.push_back(this->make_point(radius, deg));
		}

		ofBeginShape();
		ofVertices(vertices);
		ofEndShape();
	}
}

//--------------------------------------------------------------
glm::vec2 ofApp::make_point(float radius, int deg) {

	deg = deg % 360;

	int deg_a = (deg / 120) * 120;
	int deg_b = deg_a + 120;

	int remainder = deg % 120;
	int diff = deg - deg_a;

	auto point_a = glm::vec2(radius * cos(deg_a * DEG_TO_RAD), radius * sin(deg_a * DEG_TO_RAD));
	auto point_b = glm::vec2(radius * cos(deg_b * DEG_TO_RAD), radius * sin(deg_b * DEG_TO_RAD));
	auto distance = point_b - point_a;

	return point_a + (distance / 120) * diff;
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofSetColor(255);

ofNoFill();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5 + 80);

ofRotate(270);

for (int i = 0; i < 250; i++) {

float radius = ofRandom(160, 400);

vector<glm::vec2> vertices;

int start = ofRandom(1000) + ofGetFrameNum() * ofRandom(1, 3);

for (int deg = start; deg <= start + ofRandom(15, 100); deg++) {

vertices.push_back(this->make_point(radius, deg));

}

ofBeginShape();

ofVertices(vertices);

ofEndShape();

}

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

glm::vec2 ofApp::make_point(float radius, int deg) {

deg = deg % 360;

int deg_a = (deg / 120) * 120;

int deg_b = deg_a + 120;

int remainder = deg % 120;

int diff = deg - deg_a;

auto point_a = glm::vec2(radius * cos(deg_a * DEG_TO_RAD), radius * sin(deg_a * DEG_TO_RAD));

auto point_b = glm::vec2(radius * cos(deg_b * DEG_TO_RAD), radius * sin(deg_b * DEG_TO_RAD));

auto distance = point_b - point_a;

return point_a + (distance / 120) * diff;

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190329

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2019年3月28日2019年3月28日

Rotating triangle. openFrameworks

[ Video ]

[ About ]
回転する三角形

Rotating triangle.

[ 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_piece(vector<glm::vec2>& outer, vector<glm::vec2>& inner);
	glm::vec2 make_point(int radius, int deg);
};

#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_piece(vector<glm::vec2>& outer, vector<glm::vec2>& inner);

glm::vec2 make_point(int radius, int deg);

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(39);
	ofNoFill();
}

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

	ofSeedRandom(39);
}

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

	ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5 + 80);
	ofRotate(270);

	int len = 75;
	for (int radius = 160; radius <= 400; radius += 80) {

		vector<glm::vec2> outer;
		vector<glm::vec2> inner;
		int start = ofRandom(360) + ofMap(ofNoise(ofRandom(100), ofGetFrameNum() * 0.003), 0, 1, 0, 360);
		for (int deg = start; deg <= start + 360; deg++) {

			outer.push_back(this->make_point(radius, deg));
			inner.push_back(this->make_point(radius - len, deg));

			if (ofRandom(100) < 10) {

				if (outer.size() > 25) {

					this->draw_piece(outer, inner);
				}
			}
		}

		if (outer.size() > 0) {

			this->draw_piece(outer, inner);
		}
	}
}

//--------------------------------------------------------------
void ofApp::draw_piece(vector<glm::vec2>& outer, vector<glm::vec2>& inner) {

	ofColor random_color;
	random_color.setHsb(ofRandom(255), 200, 255);

	reverse(inner.begin(), inner.end());

	ofFill();
	ofSetColor(39);

	ofBeginShape();
	ofVertices(outer);
	ofVertices(inner);
	ofEndShape(true);

	ofNoFill();
	ofSetColor(239);

	ofBeginShape();
	ofVertices(outer);
	ofVertices(inner);
	ofEndShape(true);

	outer.clear();
	inner.clear();
}

//--------------------------------------------------------------
glm::vec2 ofApp::make_point(int radius, int deg) {

	deg = deg % 360;

	int deg_a = (deg / 120) * 120;
	int deg_b = deg_a + 120;

	int remainder = deg % 120;
	int diff = deg - deg_a;

	auto point_a = glm::vec2(radius * cos(deg_a * DEG_TO_RAD), radius * sin(deg_a * DEG_TO_RAD));
	auto point_b = glm::vec2(radius * cos(deg_b * DEG_TO_RAD), radius * sin(deg_b * DEG_TO_RAD));
	auto distance = point_b - point_a;

	return point_a + (distance / 120) * diff;
}

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

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

100

101

102

103

104

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(39);

ofNoFill();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5 + 80);

ofRotate(270);

int len = 75;

for (int radius = 160; radius <= 400; radius += 80) {

vector<glm::vec2> outer;

vector<glm::vec2> inner;

int start = ofRandom(360) + ofMap(ofNoise(ofRandom(100), ofGetFrameNum() * 0.003), 0, 1, 0, 360);

for (int deg = start; deg <= start + 360; deg++) {

outer.push_back(this->make_point(radius, deg));

inner.push_back(this->make_point(radius - len, deg));

if (ofRandom(100) < 10) {

if (outer.size() > 25) {

this->draw_piece(outer, inner);

}

if (outer.size() > 0) {

this->draw_piece(outer, inner);

}

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

void ofApp::draw_piece(vector<glm::vec2>& outer, vector<glm::vec2>& inner) {

ofColor random_color;

random_color.setHsb(ofRandom(255), 200, 255);

reverse(inner.begin(), inner.end());

ofFill();

ofSetColor(39);

ofBeginShape();

ofVertices(outer);

ofVertices(inner);

ofEndShape(true);

ofNoFill();

ofSetColor(239);

ofBeginShape();

ofVertices(outer);

ofVertices(inner);

ofEndShape(true);

outer.clear();

inner.clear();

}

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

glm::vec2 ofApp::make_point(int radius, int deg) {

deg = deg % 360;

int deg_a = (deg / 120) * 120;

int deg_b = deg_a + 120;

int remainder = deg % 120;

int diff = deg - deg_a;

auto point_a = glm::vec2(radius * cos(deg_a * DEG_TO_RAD), radius * sin(deg_a * DEG_TO_RAD));

auto point_b = glm::vec2(radius * cos(deg_b * DEG_TO_RAD), radius * sin(deg_b * DEG_TO_RAD));

auto distance = point_b - point_a;

return point_a + (distance / 120) * diff;

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190328

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2019年3月4日

Star. openFrameworks

[ Video ]

[ About ]
3角形を組み合わせて星型

Star made by triangle

[ 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) {};

	glm::vec2 make_point(int radius, int deg);
};

#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) {};

glm::vec2 make_point(int radius, int deg);

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(2);
}

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

	ofSeedRandom(39);
}

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

	ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);
	ofRotate(270);

	for (int radius = 50; radius < 350; radius += 50) {

		int deg_start = ofGetFrameNum() + radius;
		for (int i = 0; i < 2; i++) {

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

				vector<glm::vec2> vertices;
				for (int tmp_deg = deg; tmp_deg <= deg + 80; tmp_deg += 1) {

					vertices.push_back(glm::vec2(this->make_point(radius, tmp_deg)));
				}

				ofFill();
				ofSetColor(39);
				ofBeginShape();
				ofVertices(vertices);
				ofEndShape(true);

				ofNoFill();
				ofSetColor(239);
				ofBeginShape();
				ofVertices(vertices);
				ofEndShape(true);
			}

			ofRotate(180);
		}
	}
}

//--------------------------------------------------------------
glm::vec2 ofApp::make_point(int radius, int deg) {

	deg = deg % 360;

	int deg_a = (deg / 120) * 120;
	int deg_b = deg_a + 120;

	int remainder = deg % 120;
	int diff = deg - deg_a;

	auto point_a = glm::vec2(radius * cos(deg_a * DEG_TO_RAD), radius * sin(deg_a * DEG_TO_RAD));
	auto point_b = glm::vec2(radius * cos(deg_b * DEG_TO_RAD), radius * sin(deg_b * DEG_TO_RAD));
	auto distance = point_b - point_a;

	return point_a + (distance / 120) * diff;
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetLineWidth(2);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

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

ofRotate(270);

for (int radius = 50; radius < 350; radius += 50) {

int deg_start = ofGetFrameNum() + radius;

for (int i = 0; i < 2; i++) {

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

vector<glm::vec2> vertices;

for (int tmp_deg = deg; tmp_deg <= deg + 80; tmp_deg += 1) {

vertices.push_back(glm::vec2(this->make_point(radius, tmp_deg)));

}

ofFill();

ofSetColor(39);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofNoFill();

ofSetColor(239);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

}

ofRotate(180);

}

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

glm::vec2 ofApp::make_point(int radius, int deg) {

deg = deg % 360;

int deg_a = (deg / 120) * 120;

int deg_b = deg_a + 120;

int remainder = deg % 120;

int diff = deg - deg_a;

auto point_a = glm::vec2(radius * cos(deg_a * DEG_TO_RAD), radius * sin(deg_a * DEG_TO_RAD));

auto point_b = glm::vec2(radius * cos(deg_b * DEG_TO_RAD), radius * sin(deg_b * DEG_TO_RAD));

auto distance = point_b - point_a;

return point_a + (distance / 120) * diff;

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190304

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