circle – ページ 127 – プログラミング de 落描き

2018年5月3日2018年5月2日

パタパタサークル openFrameworks

[ Video ]

[ About ]
一つの円を15度区切りで中心を軸に、X、Yに対してRotateしています。結構、忙しなくパラパラしているんですが、最後の揃う部分だけすぅーと揃うところが良いですね。

[ 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) {};

	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 windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofEasyCam cam;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofBackground(239);
	ofSetWindowTitle("Insta");

	ofSetColor(39);
}

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

}

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

	this->cam.begin();

	int radius = 300;
	int deg_span = 15;
	for (int deg = 0; deg < 360; deg += deg_span) {

		ofRotateX(ofGetFrameNum() * 0.25);
		ofRotateY(ofGetFrameNum() * 0.25);

		vector<ofPoint> vertices;
		vertices.push_back(ofPoint(0, 0));
		vertices.push_back(ofPoint(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));
		vertices.push_back(ofPoint(radius * cos((deg + deg_span) * DEG_TO_RAD), radius * sin((deg + deg_span) * DEG_TO_RAD)));

		deg % (deg_span * 2) == 0 ? ofSetColor(239, 39, 39) : ofSetColor(239);
		ofFill();
		ofBeginShape();
		ofVertices(vertices);
		ofEndShape(true);		

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

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(239);

ofSetWindowTitle("Insta");

ofSetColor(39);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

int radius = 300;

int deg_span = 15;

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

ofRotateX(ofGetFrameNum() * 0.25);

ofRotateY(ofGetFrameNum() * 0.25);

vector<ofPoint> vertices;

vertices.push_back(ofPoint(0, 0));

vertices.push_back(ofPoint(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

vertices.push_back(ofPoint(radius * cos((deg + deg_span) * DEG_TO_RAD), radius * sin((deg + deg_span) * DEG_TO_RAD)));

deg % (deg_span * 2) == 0 ? ofSetColor(239, 39, 39) : ofSetColor(239);

ofFill();

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofSetColor(39);

ofNoFill();

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180502

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2018年4月30日2018年4月30日

Cording Life Part1 openFramewoks

[ Video ]

[ About ]
連休だし、何か新しい事を始めたいと思い、いつもしているopenFramewoksでの作業風景をYoutube Liveで垂れ流してみました。動画をMP4、ソースコードをBlogやGitにPushした段階で、自分の中では、一つのアウトプットとして固まってしまいますが、こうやってコーディングの履歴を記録していると、それぞれの経緯や思惑のようなものが時系列的に見えて、なかなか面白いなぁと思います。

Youtube Liveだとアーカイブが残るのでTwitterで宣伝したのですが、「ダウンロード(!?)して3倍速で見たよ、 Awesome!」というコメントを頂けたので、とりあえずは成功かな。ソースコードをもうちょっと見える形にしたり、配信上の改善は重ねないといけませんが、結構面白いので、週末とか休みのタイミングで引き続きやっていきたいなと思います。

[ 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() {

	ofSetFrameRate(60);
	ofBackground(39);
	ofSetWindowTitle("Insta");

	ofSetColor(239);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
}

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

}

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

	ofTranslate(ofGetWidth() / 2, ofGetHeight() / 2);

	int radius = 300;
	vector<ofColor> colors = { ofColor(239, 39, 39), ofColor(39, 239, 39), ofColor(39, 39, 239)};

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

		ofSetColor(colors[i], 239);

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

			int x = radius * cos(deg * DEG_TO_RAD);
			int y = radius * sin(deg * DEG_TO_RAD);

			float noise_value = ofNoise(i, x * 0.001, y * 0.001, ofGetFrameNum() * 0.008);
			noise_value = floorf(noise_value * 10) * 0.1 + 0.25;

			x = (radius * noise_value) * cos(deg * DEG_TO_RAD);
			y = (radius * noise_value) * sin(deg * DEG_TO_RAD);

			ofVertex(ofPoint(x, y));
		}
		ofEndShape(true);
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(39);

ofSetWindowTitle("Insta");

ofSetColor(239);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofTranslate(ofGetWidth() / 2, ofGetHeight() / 2);

int radius = 300;

vector<ofColor> colors = { ofColor(239, 39, 39), ofColor(39, 239, 39), ofColor(39, 39, 239)};

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

ofSetColor(colors[i], 239);

ofBeginShape();

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

int x = radius * cos(deg * DEG_TO_RAD);

int y = radius * sin(deg * DEG_TO_RAD);

float noise_value = ofNoise(i, x * 0.001, y * 0.001, ofGetFrameNum() * 0.008);

noise_value = floorf(noise_value * 10) * 0.1 + 0.25;

x = (radius * noise_value) * cos(deg * DEG_TO_RAD);

y = (radius * noise_value) * sin(deg * DEG_TO_RAD);

ofVertex(ofPoint(x, y));

}

ofEndShape(true);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/insta20180429

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2018年4月29日2018年4月28日

無邪気なお絵描き openFrameworks

[ Video ]

[ About ]
ペンの軌跡を重ならないCircleで埋めています。仕組み的には、ofFbo(メモリ内部)にいったんペンの軌跡を描写、その結果へピクセル単位でアクセス(色情報)して、円を描写するべき範囲かの判定しています。マウスよりもSurfacePenなので直感的に書き書き出来るのがよいですね。

[ 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) {};

	ofFbo fbo;
	ofPixels pix;

	vector<tuple<ofColor, ofPoint, float>> circles;
	int mouse_down_count;
};

#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) {};

ofFbo fbo;

ofPixels pix;

vector<tuple<ofColor, ofPoint, float>> circles;

int mouse_down_count;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofBackground(239);
	ofSetWindowTitle("Insta");

	this->fbo.allocate(ofGetWidth(), ofGetHeight());
	this->mouse_down_count = 0;
}

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

	ofSeedRandom(39);

	this->fbo.begin();

	if (ofGetMousePressed()) {

		ofSetColor(0);
		ofDrawCircle(ofGetMouseX(), ofGetMouseY(), 30);
		this->mouse_down_count++;
	}

	this->fbo.end();
	this->fbo.readToPixels(this->pix);
}

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

	//this->fbo.draw(0, 0);

	while (circles.size() < mouse_down_count * 5){

		int x = ofRandom(ofGetWidth());
		int y = ofRandom(ofGetHeight());

		ofColor pix_color = this->pix.getColor(x, y);
		if (pix_color != ofColor(0)) {

			continue;
		}

		ofColor color;
		color.setHsb(ofRandom(255), 255, 255);
		ofPoint point = ofPoint(x, y);
		float radius = ofRandom(2, 35);

		bool flag = true;
		for (int i = 0; i < circles.size(); i++) {

			if (point.distance(get<1>(circles[i])) < get<2>(circles[i]) + radius) {

				flag = false;
				break;
			}
		}

		if (flag) {

			circles.push_back(make_tuple(color, point, radius));
		}
	}

	for (int circles_index = 0; circles_index < circles.size(); circles_index++) {

		ofColor color = get<0>(circles[circles_index]);
		ofPoint point = get<1>(circles[circles_index]);
		float radius = get<2>(circles[circles_index]);

		ofSetColor(color);
		ofDrawCircle(point, radius);
	}

	ofPopMatrix();
}
//--------------------------------------------------------------
void ofApp::keyPressed(int key) {

	this->fbo.begin();
	ofClear(0);
	this->fbo.end();

	this->mouse_down_count = 0;
	this->circles.clear();
}

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

	ofSetupOpenGL(1280, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(239);

ofSetWindowTitle("Insta");

this->fbo.allocate(ofGetWidth(), ofGetHeight());

this->mouse_down_count = 0;

}

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

void ofApp::update() {

ofSeedRandom(39);

this->fbo.begin();

if (ofGetMousePressed()) {

ofSetColor(0);

ofDrawCircle(ofGetMouseX(), ofGetMouseY(), 30);

this->mouse_down_count++;

}

this->fbo.end();

this->fbo.readToPixels(this->pix);

}

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

void ofApp::draw() {

//this->fbo.draw(0, 0);

while (circles.size() < mouse_down_count * 5){

int x = ofRandom(ofGetWidth());

int y = ofRandom(ofGetHeight());

ofColor pix_color = this->pix.getColor(x, y);

if (pix_color != ofColor(0)) {

continue;

}

ofColor color;

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

ofPoint point = ofPoint(x, y);

float radius = ofRandom(2, 35);

bool flag = true;

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

if (point.distance(get<1>(circles[i])) < get<2>(circles[i]) + radius) {

flag = false;

break;

}

if (flag) {

circles.push_back(make_tuple(color, point, radius));

}

for (int circles_index = 0; circles_index < circles.size(); circles_index++) {

ofColor color = get<0>(circles[circles_index]);

ofPoint point = get<1>(circles[circles_index]);

float radius = get<2>(circles[circles_index]);

ofSetColor(color);

ofDrawCircle(point, radius);

}

ofPopMatrix();

}

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

void ofApp::keyPressed(int key) {

this->fbo.begin();

ofClear(0);

this->fbo.end();

this->mouse_down_count = 0;

this->circles.clear();

}

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

int main() {

ofSetupOpenGL(1280, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/insta20180428

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