プログラミング de 落描き

2019年2月18日2019年2月18日

Band traversing a square. openFrameworks

[ Video ]

[ About ]
正方形を横断する帯をフレームごとに重ねる

Band traversing a square. Add at every frame.

[ 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 len, int 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 windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

glm::vec2 make_point(int len, int param);

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetBackgroundAuto(false);
}

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

}

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

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

	int len = 445;
	int width = 3;

	int param_start = ofRandom(100);
	vector<glm::vec2> vertices;
	for (int param = param_start; param <= param_start + width; param++) {

		vertices.push_back(this->make_point(len, param));
	}

	param_start += ofRandom(25, 75);
	for (int param = param_start; param <= param_start + width; param++) {

		vertices.push_back(this->make_point(len, param));
	}

	ofFill();
	ofSetColor(ofRandom(255));
	ofBeginShape();
	ofVertices(vertices);
	ofEndShape(true);

	ofNoFill();
	ofSetColor(39);
	ofBeginShape();
	ofVertices(vertices);
	ofEndShape(true);
}

//--------------------------------------------------------------
glm::vec2 ofApp::make_point(int len, int param) {

	param = param % 100;
	if (param < 25) {

		return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);
	}
	else if (param < 50) {

		return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));
	}
	else if (param < 75) {

		return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);
	}
	else {

		return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetBackgroundAuto(false);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

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

int len = 445;

int width = 3;

int param_start = ofRandom(100);

vector<glm::vec2> vertices;

for (int param = param_start; param <= param_start + width; param++) {

vertices.push_back(this->make_point(len, param));

}

param_start += ofRandom(25, 75);

for (int param = param_start; param <= param_start + width; param++) {

vertices.push_back(this->make_point(len, param));

}

ofFill();

ofSetColor(ofRandom(255));

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofNoFill();

ofSetColor(39);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

}

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

glm::vec2 ofApp::make_point(int len, int param) {

param = param % 100;

if (param < 25) {

return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);

}

else if (param < 50) {

return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));

}

else if (param < 75) {

return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);

}

else {

return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190218

[ Sponsor Link ]

2019年2月17日

Noise circle. openFrameworks

[ Video ]

[ About ]
ノイズな円。

Noise circle.

[ 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(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(39);
	ofNoFill();
	ofSetLineWidth(1.5);
}

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

}

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

	int span = 240;
	int radius_base = 100;
	int len = 15;
	float hue = 0;
	for (int y = span * 0.5; y < ofGetHeight(); y += span) {

		for (int x = span * 0.5; x < ofGetWidth(); x += span) {

			ofColor color;
			color.setHsb(hue, 230, 255);
			ofSetColor(color);

			ofPushMatrix();
			ofTranslate(x, y);

			vector<glm::vec2> out_vertices;
			vector<glm::vec2> in_vertices;
			for (int deg = 0; deg < 360; deg++) {

				auto noise_point = glm::vec2(x + radius_base * cos(deg * DEG_TO_RAD), y + radius_base * sin(deg * DEG_TO_RAD));
				float noise_len = ofMap(ofNoise(noise_point.x * 0.01, noise_point.y * 0.01, ofGetFrameNum() * 0.01), 0, 1, 5, len);

				float radius = radius_base + noise_len;
				out_vertices.push_back(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

				radius = radius_base - noise_len;
				in_vertices.push_back(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));
			}

			ofBeginShape();
			ofVertices(out_vertices);
			ofNextContour(true);
			ofVertices(in_vertices);
			ofEndShape(true);

			ofPopMatrix();

			hue += 25.5;
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofNoFill();

ofSetLineWidth(1.5);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

int span = 240;

int radius_base = 100;

int len = 15;

float hue = 0;

for (int y = span * 0.5; y < ofGetHeight(); y += span) {

for (int x = span * 0.5; x < ofGetWidth(); x += span) {

ofColor color;

color.setHsb(hue, 230, 255);

ofSetColor(color);

ofPushMatrix();

ofTranslate(x, y);

vector<glm::vec2> out_vertices;

vector<glm::vec2> in_vertices;

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

auto noise_point = glm::vec2(x + radius_base * cos(deg * DEG_TO_RAD), y + radius_base * sin(deg * DEG_TO_RAD));

float noise_len = ofMap(ofNoise(noise_point.x * 0.01, noise_point.y * 0.01, ofGetFrameNum() * 0.01), 0, 1, 5, len);

float radius = radius_base + noise_len;

out_vertices.push_back(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

radius = radius_base - noise_len;

in_vertices.push_back(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

}

ofBeginShape();

ofVertices(out_vertices);

ofNextContour(true);

ofVertices(in_vertices);

ofEndShape(true);

ofPopMatrix();

hue += 25.5;

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190217

[ Sponsor Link ]

2019年2月16日2019年2月16日

Colors. Circles. openFramewrok

[ Video ]

[ About ]
昨日、寝る前に頭に浮かんだやつ。画面中心と円の距離を半径としたときの円周の長さ10度分が円の半径

Colors. Circles.

[ 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<glm::vec2> locations;
	vector<glm::vec2> velocities;
	vector<ofColor> colors;
};

#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<glm::vec2> locations;

vector<glm::vec2> velocities;

vector<ofColor> colors;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
	ofSetCircleResolution(36);
}

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

	ofColor color;
	if (ofRandom(100) < 50) {

		this->locations.push_back(glm::vec2());
		this->velocities.push_back(glm::normalize(glm::vec2(ofRandom(-1, 1), ofRandom(-1, 1))) * 2);
		color.setHsb(ofRandom(255), 255, 255);
		this->colors.push_back(color);
	}

	for (int i = this->locations.size() - 1; i > -1; i--) {

		this->locations[i] += this->velocities[i];

		if (glm::length(this->locations[i]) > 720){

			this->locations.erase(this->locations.begin() + i);
			this->velocities.erase(this->velocities.begin() + i);
			this->colors.erase(this->colors.begin() + i);
		}
	}
}

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

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

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

		ofSetColor(this->colors[i]);

		float radius = (2 * PI * glm::length(this->locations[i])) / 360 * 10;
		ofDrawCircle(this->locations[i], radius);
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

ofSetCircleResolution(36);

}

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

void ofApp::update() {

ofColor color;

if (ofRandom(100) < 50) {

this->locations.push_back(glm::vec2());

this->velocities.push_back(glm::normalize(glm::vec2(ofRandom(-1, 1), ofRandom(-1, 1))) * 2);

color.setHsb(ofRandom(255), 255, 255);

this->colors.push_back(color);

}

for (int i = this->locations.size() - 1; i > -1; i--) {

this->locations[i] += this->velocities[i];

if (glm::length(this->locations[i]) > 720){

this->locations.erase(this->locations.begin() + i);

this->velocities.erase(this->velocities.begin() + i);

this->colors.erase(this->colors.begin() + i);

}

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

void ofApp::draw() {

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

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

ofSetColor(this->colors[i]);

float radius = (2 * PI * glm::length(this->locations[i])) / 360 * 10;

ofDrawCircle(this->locations[i], radius);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190216

[ Sponsor Link ]

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