circle – ページ 119 – プログラミング de 落描き

2018年6月17日

カラフル軌跡 openFrameworks

[ Video ]

[ About ]
1,280個の円をランダムで配置。Noise関数で動くポイントが近づくと色が発色するようにしました。

[ Source ]

#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 "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);
	ofBackground(239);
	ofSetWindowTitle("Insta");
}

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

	ofSeedRandom(39);
}

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

	float random_value_x = ofRandom(100);
	float random_value_y = ofRandom(100);
	vector<ofPoint> targets;
	for (int i = 0; i < 50; i++) {

		ofPoint target(ofMap(ofNoise(random_value_x, (ofGetFrameNum() - i) * 0.008), 0, 1, 0, ofGetWidth()), ofMap(ofNoise(random_value_y, (ofGetFrameNum() - i) * 0.008), 0, 1, 0, ofGetHeight()));
		targets.push_back(target);
	}

	ofColor color;
	for(int i = 0; i < 1280; i++){
	
		ofPoint point(ofRandom(ofGetWidth()), ofRandom(ofGetHeight()));
		color.setHsb(ofRandom(255), 200, 255);
		float radius = ofRandom(3, 30);

		for (int targets_index = 0; targets_index < targets.size(); targets_index++) {
		
			float distance = point.distance(targets[targets_index]);
			if (distance < 120) {

				ofSetColor(color, ofMap(distance, 0, 120, 50 - targets_index, 0));
				ofDrawCircle(point, radius);
			}
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(239);

ofSetWindowTitle("Insta");

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

float random_value_x = ofRandom(100);

float random_value_y = ofRandom(100);

vector<ofPoint> targets;

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

ofPoint target(ofMap(ofNoise(random_value_x, (ofGetFrameNum() - i) * 0.008), 0, 1, 0, ofGetWidth()), ofMap(ofNoise(random_value_y, (ofGetFrameNum() - i) * 0.008), 0, 1, 0, ofGetHeight()));

targets.push_back(target);

}

ofColor color;

for(int i = 0; i < 1280; i++){

ofPoint point(ofRandom(ofGetWidth()), ofRandom(ofGetHeight()));

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

float radius = ofRandom(3, 30);

for (int targets_index = 0; targets_index < targets.size(); targets_index++) {

float distance = point.distance(targets[targets_index]);

if (distance < 120) {

ofSetColor(color, ofMap(distance, 0, 120, 50 - targets_index, 0));

ofDrawCircle(point, radius);

}

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

int main() {

ofSetupOpenGL(1280, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180617

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2018年6月14日2018年6月14日

2色の円弧 openFrameworks

[ Video ]

[ About ]
90度の円弧を2色1対にして描写しました

[ 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");

	ofNoFill();
	ofSetLineWidth(3);
}

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

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

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

	ofColor colors[] = { ofColor(200, 39, 39), ofColor(39, 39, 200) };
	for (int radius = 50; radius < 350; radius += 15) {

		int deg_start = ofNoise(ofGetFrameNum() * 0.01 + radius * 0.005) * 720;
		for (int i = 0; i < 2; i++) {

			ofSetColor(colors[i]);

			ofBeginShape();
			for (int deg = deg_start + i * 180; deg < deg_start + i * 180 + 90; deg += 1) {

				ofVertex(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
			}
			ofEndShape();
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(239);

ofSetWindowTitle("Insta");

ofNoFill();

ofSetLineWidth(3);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

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

ofColor colors[] = { ofColor(200, 39, 39), ofColor(39, 39, 200) };

for (int radius = 50; radius < 350; radius += 15) {

int deg_start = ofNoise(ofGetFrameNum() * 0.01 + radius * 0.005) * 720;

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

ofSetColor(colors[i]);

ofBeginShape();

for (int deg = deg_start + i * 180; deg < deg_start + i * 180 + 90; deg += 1) {

ofVertex(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

}

ofEndShape();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180614

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2018年6月13日2018年6月13日

円とノイズ openFrameworks

[ Video ]

[ About ]
円を一定角度ごとの区間で切り分けて(ダーツの的状)、Noise関数の結果で描写する・しないを決定しました。

Noise関数の引数として、半径の値とフレーム数の合計値を使う事で、このように結果が伝播していく動きが作れます。

[ 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");

	ofSetColor(39);
}

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

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

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

	ofDrawCircle(ofPoint(), 51);

	int radius_span = 20;
	int deg_span = 5;
	for (int radius = 50; radius < 500; radius += radius_span) {

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

			float noise_value = ofNoise(radius * 0.0005 - ofGetFrameNum() * 0.005, deg * 0.05);
			if (noise_value > 0.6) {

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

					ofVertex(radius * cos(tmp_deg * DEG_TO_RAD), radius * sin(tmp_deg * DEG_TO_RAD));
				}

				for (int tmp_deg = deg + deg_span; tmp_deg >= deg; tmp_deg -= 1) {

					ofVertex((radius + radius_span) * cos(tmp_deg * DEG_TO_RAD), (radius + radius_span) * sin(tmp_deg * DEG_TO_RAD));
				}
				ofEndShape(true);
			}
		}
	}
}

//--------------------------------------------------------------
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() {

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

ofDrawCircle(ofPoint(), 51);

int radius_span = 20;

int deg_span = 5;

for (int radius = 50; radius < 500; radius += radius_span) {

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

float noise_value = ofNoise(radius * 0.0005 - ofGetFrameNum() * 0.005, deg * 0.05);

if (noise_value > 0.6) {

ofBeginShape();

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

ofVertex(radius * cos(tmp_deg * DEG_TO_RAD), radius * sin(tmp_deg * DEG_TO_RAD));

}

for (int tmp_deg = deg + deg_span; tmp_deg >= deg; tmp_deg -= 1) {

ofVertex((radius + radius_span) * cos(tmp_deg * DEG_TO_RAD), (radius + radius_span) * sin(tmp_deg * DEG_TO_RAD));

}

ofEndShape(true);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180613

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2025年1月
月	火	水	木	金	土	日
		1	2	3	4	5
6	7	8	9	10	11	12
13	14	15	16	17	18	19
20	21	22	23	24	25	26
27	28	29	30	31