rect – ページ 31 – プログラミング de 落描き

2018年5月17日2018年5月17日

Circle と Square openFrameworks

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Noise関数の値で円の座標と正方形の座標を行ったり来たり

[ 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) {};

	// Make Method
	ofPoint make_rect_point(float half_len, 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) {};

// Make Method

ofPoint make_rect_point(float half_len, int deg);

};

#include "ofApp.h"

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

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

	ofSetLineWidth(2);
	ofSetColor(239, 0, 0);
}

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

}

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

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

	int radius = 150;
	int half_len = 300;
	for (int deg = 0; deg < 360; deg += 2) {

		ofPoint circle_point = ofPoint(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
		float noise_value = ofNoise(circle_point.x * 0.015, circle_point.y * 0.015, ofGetFrameNum() * 0.005);
		ofPoint rect_point = make_rect_point(half_len * noise_value , deg);
		if (rect_point.length() > radius) {

			rect_point = make_rect_point(half_len, deg);
		}
		else {

			rect_point = ofPoint(rect_point.length() * cos(deg * DEG_TO_RAD), rect_point.length() * sin(deg * DEG_TO_RAD));
		}

		ofDrawLine(circle_point, rect_point);
	}
}

//--------------------------------------------------------------
ofPoint ofApp::make_rect_point(float half_len, int deg) {

	int param = (deg + 45) / 90;
	ofPoint point;

	switch (param % 4) {

	case 0:

		return ofPoint(len, ofMap((deg + 45) % 90, 0, 89, -len, len));
	case 1:

		return  ofPoint(ofMap((deg + 45) % 90, 0, 89, len, -len), len);
	case 2:

		return ofPoint(-len, ofMap((deg + 45) % 90, 0, 89, len, -len));
	case 3:

		return ofPoint(ofMap((deg + 45) % 90, 0, 89, -len, len), -len);
	default:

		return ofPoint(0, 0);
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(239);

ofSetWindowTitle("Insta");

ofSetLineWidth(2);

ofSetColor(239, 0, 0);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

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

int radius = 150;

int half_len = 300;

for (int deg = 0; deg < 360; deg += 2) {

ofPoint circle_point = ofPoint(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

float noise_value = ofNoise(circle_point.x * 0.015, circle_point.y * 0.015, ofGetFrameNum() * 0.005);

ofPoint rect_point = make_rect_point(half_len * noise_value , deg);

if (rect_point.length() > radius) {

rect_point = make_rect_point(half_len, deg);

}

else {

rect_point = ofPoint(rect_point.length() * cos(deg * DEG_TO_RAD), rect_point.length() * sin(deg * DEG_TO_RAD));

}

ofDrawLine(circle_point, rect_point);

}

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

ofPoint ofApp::make_rect_point(float half_len, int deg) {

int param = (deg + 45) / 90;

ofPoint point;

switch (param % 4) {

case 0:

return ofPoint(len, ofMap((deg + 45) % 90, 0, 89, -len, len));

case 1:

return ofPoint(ofMap((deg + 45) % 90, 0, 89, len, -len), len);

case 2:

return ofPoint(-len, ofMap((deg + 45) % 90, 0, 89, len, -len));

case 3:

return ofPoint(ofMap((deg + 45) % 90, 0, 89, -len, len), -len);

default:

return ofPoint(0, 0);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180517

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2018年5月1日2018年5月6日

Coding Life Part2 openFrameworks

[ Video ]

[ About ]
昨日に引き続いてYoutube Live垂れ流し配信してみました。

設定ちょっとイジって、キャプチャ範囲をVisulal Studioとメモ帳に限定、BGMを流す、文字サイズを大きくするなどしてみました。キャプチャ範囲を限定することで、見えてはいけないものが映りこむ事故が無くなった分、タイトルバーやコンテキストメニューなども消えて配信上見えない所が出てきて、一長一短ですね。

出来上がった絵ですが、色付き版で動画をアップロードしたところ、エンコードで画質がガタガタになったので、白色一色に直しました。無いはずの形・輪郭が見えるという事をやりたかったので、これはこれで良しです。

[ 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) {};

	ofPoint make_rect_point(float len, 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) {};

ofPoint make_rect_point(float len, int deg);

};

#include "ofApp.h"

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

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

	ofNoFill();
	ofSetLineWidth(1.5);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
	ofSetColor(239, 200);
}

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

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

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

	int len_span = 60;
	int line_count_max = 50;
	for (int len = 60; len < 360; len += len_span) {

		for (int line_count = 0; line_count < line_count_max; line_count++) {

			//ofColor line_color;
			//line_color.setHsb(ofMap(line_count, 0, line_count_max, 0, 239), 255, 255);
			//ofSetColor(line_color);

			int deg = ofNoise(line_count * 0.05,len * 0.005, ofGetFrameNum() * 0.002) * 720;

			ofPoint start = this->make_rect_point(len, deg);
			ofPoint end = this->make_rect_point(len + len_span, deg);

			ofDrawLine(start, end);
		}
	}
}

//--------------------------------------------------------------
ofPoint ofApp::make_rect_point(float len, int deg) {

	int param = (deg + 45) / 90;
	ofPoint point;

	switch (param % 4) {

	case 0:

		return ofPoint(len, ofMap((deg + 45) % 90, 0, 89, -len, len));
	case 1:

		return  ofPoint(ofMap((deg + 45) % 90, 0, 89, len, -len), len);
	case 2:

		return ofPoint(-len, ofMap((deg + 45) % 90, 0, 89, len, -len));
	case 3:

		return ofPoint(ofMap((deg + 45) % 90, 0, 89, -len, len), -len);
	default:

		return ofPoint(0, 0);
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(39);

ofSetWindowTitle("Insta");

ofNoFill();

ofSetLineWidth(1.5);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

ofSetColor(239, 200);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

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

int len_span = 60;

int line_count_max = 50;

for (int len = 60; len < 360; len += len_span) {

for (int line_count = 0; line_count < line_count_max; line_count++) {

//ofColor line_color;

//line_color.setHsb(ofMap(line_count, 0, line_count_max, 0, 239), 255, 255);

//ofSetColor(line_color);

int deg = ofNoise(line_count * 0.05,len * 0.005, ofGetFrameNum() * 0.002) * 720;

ofPoint start = this->make_rect_point(len, deg);

ofPoint end = this->make_rect_point(len + len_span, deg);

ofDrawLine(start, end);

}

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

ofPoint ofApp::make_rect_point(float len, int deg) {

int param = (deg + 45) / 90;

ofPoint point;

switch (param % 4) {

case 0:

return ofPoint(len, ofMap((deg + 45) % 90, 0, 89, -len, len));

case 1:

return ofPoint(ofMap((deg + 45) % 90, 0, 89, len, -len), len);

case 2:

return ofPoint(-len, ofMap((deg + 45) % 90, 0, 89, len, -len));

case 3:

return ofPoint(ofMap((deg + 45) % 90, 0, 89, -len, len), -len);

default:

return ofPoint(0, 0);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180440

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2018年4月13日2018年4月12日

ノイズのスケールを可視化 openFrameworks

[ Video ]

[ About ]
Noise関数の引数として、頻繁にx, y座標を与えたるする事が多いのですが、その間隔を変化させたらどうなるだろう？と思いついた結果です。

四角を描写、色をNoise関数の結果で表しています。中央付近は小さい四角なのでx, y座標の値が近く模様っぽいものが現れますが、中央から離れるにしたがって四角が大きくなるので、x, y座標の値も離れます。

[ 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(239);
	ofSetWindowTitle("Insta");

	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);
}

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

	ofSeedRandom(39);
}

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

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

	float size = 1;
	float noise_value;
	ofColor rect_color;
	for (int y = size / 2; y < ofGetHeight() / 2 + size;) {

		for (int x = size / 2; x < ofGetWidth() / 2 + size / 2; x += size) {

			noise_value = ofNoise(x * 0.005, y * 0.005 - ofGetFrameNum() * 0.005);
			ofSetColor(noise_value * 255);

			ofDrawRectangle(ofPoint(x, y), size, size);
			ofDrawRectangle(ofPoint(x, -y), size, size);
			ofDrawRectangle(ofPoint(-x, y), size, size);
			ofDrawRectangle(ofPoint(-x, -y), size, size);
		}

		y += size * 1.25;
		size *= 1.5;
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(239);

ofSetWindowTitle("Insta");

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

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

float size = 1;

float noise_value;

ofColor rect_color;

for (int y = size / 2; y < ofGetHeight() / 2 + size;) {

for (int x = size / 2; x < ofGetWidth() / 2 + size / 2; x += size) {

noise_value = ofNoise(x * 0.005, y * 0.005 - ofGetFrameNum() * 0.005);

ofSetColor(noise_value * 255);

ofDrawRectangle(ofPoint(x, y), size, size);

ofDrawRectangle(ofPoint(x, -y), size, size);

ofDrawRectangle(ofPoint(-x, y), size, size);

ofDrawRectangle(ofPoint(-x, -y), size, size);

}

y += size * 1.25;

size *= 1.5;

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180412

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