プログラミング de 落描き – ページ 783 – クリエイティブ・コーディングによる生成物とソース

2018年6月18日2018年6月19日

シルエット on ライン openFrameworks

[ Video ]

[ About ]
動物(犬-Dog, やもり-Gecko, こうもり-Bat)のシルエットにお互いを結ぶ座標を置きました。

[ 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) {};

	vector<ofImage> images;
	int images_index;
	ofPixels pix;
};

#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<ofImage> images;

int images_index;

ofPixels pix;

};

#include "ofApp.h"

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

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

	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
	
	ofImage image_gecko;
	image_gecko.load("images/gecko.png");
	ofImage image_dog;
	image_dog.load("images/dog.png");
	ofImage image_bat;
	image_bat.load("images/bat.png");

	this->images.push_back(image_gecko);
	this->images.push_back(image_dog);
	this->images.push_back(image_bat);

	this->images_index = -1;
}

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

	ofSeedRandom(39);

	if (ofGetFrameNum() % 180 == 0) {

		this->images_index = (this->images_index + 1) % this->images.size();
		this->pix = this->images[this->images_index].getPixelsRef();
	}
}

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

	ofTranslate((ofGetWidth() - this->images[this->images_index].getWidth()) * 0.5, (ofGetHeight() - this->images[this->images_index].getHeight()) * 0.5);

	int number_of_circle = 550;
	vector<ofPoint> points;
	while (points.size() < number_of_circle) {

		int x = ofRandom(this->images[this->images_index].getWidth());
		int y = ofRandom(this->images[this->images_index].getHeight());

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

			continue;
		}

		float x_increase = ofMap(ofNoise(ofRandom(number_of_circle), ofGetFrameNum() * 0.005), 0, 1, -10, 10);
		float y_increase = ofMap(ofNoise(ofRandom(number_of_circle), ofGetFrameNum() * 0.005), 0, 1, -10, 10);
		x += x_increase;
		y += y_increase;

		points.push_back(ofPoint(x, y));
	}

	ofColor color;
	for (int i = 0; i < points.size(); i++) {

		color.setHsb(ofRandom(255), 255, 255);
		ofSetColor(color);
		ofDrawCircle(points[i], 3);

		for (int j = 0; j < points.size(); j++) {

			float distance = points[i].distance(points[j]);
			if (distance < 50) {

				ofSetColor(color, ofMap(distance, 0, 50, 255, 0));
				ofDrawLine(points[i], points[j]);
			}
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(39);

ofSetWindowTitle("Insta");

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

ofImage image_gecko;

image_gecko.load("images/gecko.png");

ofImage image_dog;

image_dog.load("images/dog.png");

ofImage image_bat;

image_bat.load("images/bat.png");

this->images.push_back(image_gecko);

this->images.push_back(image_dog);

this->images.push_back(image_bat);

this->images_index = -1;

}

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

void ofApp::update() {

ofSeedRandom(39);

if (ofGetFrameNum() % 180 == 0) {

this->images_index = (this->images_index + 1) % this->images.size();

this->pix = this->images[this->images_index].getPixelsRef();

}

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

void ofApp::draw() {

ofTranslate((ofGetWidth() - this->images[this->images_index].getWidth()) * 0.5, (ofGetHeight() - this->images[this->images_index].getHeight()) * 0.5);

int number_of_circle = 550;

vector<ofPoint> points;

while (points.size() < number_of_circle) {

int x = ofRandom(this->images[this->images_index].getWidth());

int y = ofRandom(this->images[this->images_index].getHeight());

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

if (pix_color != ofColor(0)) {

continue;

}

float x_increase = ofMap(ofNoise(ofRandom(number_of_circle), ofGetFrameNum() * 0.005), 0, 1, -10, 10);

float y_increase = ofMap(ofNoise(ofRandom(number_of_circle), ofGetFrameNum() * 0.005), 0, 1, -10, 10);

x += x_increase;

y += y_increase;

points.push_back(ofPoint(x, y));

}

ofColor color;

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

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

ofSetColor(color);

ofDrawCircle(points[i], 3);

for (int j = 0; j < points.size(); j++) {

float distance = points[i].distance(points[j]);

if (distance < 50) {

ofSetColor(color, ofMap(distance, 0, 50, 255, 0));

ofDrawLine(points[i], points[j]);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180618

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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

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2018年6月16日2018年6月16日

対の線 openFrameworks

[ Video ]

[ About ]
四角の座標上で対の線を描写

[ 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) {};

	// Make Method
	ofPoint make_rect_point(float half_len, int deg, int z = 0);
};

#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) {};

// Make Method

ofPoint make_rect_point(float half_len, int deg, int z = 0);

};

#include "ofApp.h"

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

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

	ofSetLineWidth(3);
	ofNoFill();
}

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

}

//--------------------------------------------------------------
void ofApp::draw() {
	
	ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);

	ofColor color;

	for (int len = 45; len < 720; len += 15) {

		color.setHsb(ofMap(len, 45, 720, 0, 255), 200, 200);
		ofSetColor(color);

		int deg_start = ofGetFrameNum() + len;

		ofBeginShape();
		for (int deg = deg_start; deg < deg_start + 45; deg += 1) {

			ofVertex(this->make_rect_point(len, deg));
		}
		ofEndShape();

		deg_start += 180;
		ofBeginShape();
		for (int deg = deg_start; deg < deg_start + 45; deg += 1) {

			ofVertex(this->make_rect_point(len, deg));
		}
		ofEndShape();
	}
}

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

	int half_len = len * 0.5;
	int param = (deg + 45) / 90;

	ofPoint point;

	switch (param % 4) {

	case 0:

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

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

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

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

		return ofPoint(0, 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(3);

ofNoFill();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

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

ofColor color;

for (int len = 45; len < 720; len += 15) {

color.setHsb(ofMap(len, 45, 720, 0, 255), 200, 200);

ofSetColor(color);

int deg_start = ofGetFrameNum() + len;

ofBeginShape();

for (int deg = deg_start; deg < deg_start + 45; deg += 1) {

ofVertex(this->make_rect_point(len, deg));

}

ofEndShape();

deg_start += 180;

ofBeginShape();

for (int deg = deg_start; deg < deg_start + 45; deg += 1) {

ofVertex(this->make_rect_point(len, deg));

}

ofEndShape();

}

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

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

int half_len = len * 0.5;

int param = (deg + 45) / 90;

ofPoint point;

switch (param % 4) {

case 0:

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

case 1:

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

case 2:

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

case 3:

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

default:

return ofPoint(0, 0, 0);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180616

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