プログラミング de 落描き – ページ 687 – クリエイティブ・コーディングによる生成物とソース

2019年4月4日2019年4月4日

Flock of fives. Processing

[ Video ]

Flock of fives.

[ Source ]

ArrayList<PVector> locations; // 位置情報を保存する配列

void setup(){
  
  //
  // 初期化
  //
  frameRate(30);
  size(512, 512);
  fill(0);
 
  //
  // 文字「5」を描写して、pixelsへ結果をロード
  // 文字「5」上の座標になるランダムな座標情報を100個記憶する
  //
  background(255);
  
  textAlign(CENTER, TOP);
  textSize(600);
  float ascent = textAscent();
  float descent = textDescent();
  float textHeight = ascent + descent;
  text("5", width / 2, (int)(height - textHeight) / 2);
  
  loadPixels();
  
  locations = new ArrayList<PVector>();
  while(locations.size() < 100){
   
    int x = (int)random(width);
    int y = (int)random(height);

    float pixel_value = red(pixels[x + y * width]);
    if(pixel_value != 255){
     
      PVector location = new PVector(x, y);
      locations.add(location);
    }   
  }
}

void draw(){
    
  //
  // 記憶した座標100個に小さい「5」を描写
  //
  
  randomSeed(39);
  
  background(239);
  fill(39);
  textAlign(CENTER, CENTER);
  
  for(int i = 0; i < locations.size(); i++){
    
    PVector location = locations.get(i);
    
    push();
    translate(location.x, location.y);
    rotate(frameCount * random(0.1, 0.3));
    
    float fontSize = noise(random(100) + frameCount * 0.05) * 100;
    
    fill(239);
    textSize(fontSize);
    text("5", 0, 0);
    
    fill(39);
    textSize(fontSize - 3);
    text("5", 0, 0);
    
    pop();
  }
}

ArrayList<PVector> locations; // 位置情報を保存する配列

void setup(){

// 初期化

frameRate(30);

size(512, 512);

fill(0);

// 文字「5」を描写して、pixelsへ結果をロード

// 文字「5」上の座標になるランダムな座標情報を100個記憶する

background(255);

textAlign(CENTER, TOP);

textSize(600);

float ascent = textAscent();

float descent = textDescent();

float textHeight = ascent + descent;

text("5", width / 2, (int)(height - textHeight) / 2);

loadPixels();

locations = new ArrayList<PVector>();

while(locations.size() < 100){

int x = (int)random(width);

int y = (int)random(height);

float pixel_value = red(pixels[x + y * width]);

if(pixel_value != 255){

PVector location = new PVector(x, y);

locations.add(location);

}

void draw(){

// 記憶した座標100個に小さい「5」を描写

randomSeed(39);

background(239);

fill(39);

textAlign(CENTER, CENTER);

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

PVector location = locations.get(i);

push();

translate(location.x, location.y);

rotate(frameCount * random(0.1, 0.3));

float fontSize = noise(random(100) + frameCount * 0.05) * 100;

fill(239);

textSize(fontSize);

text("5", 0, 0);

fill(39);

textSize(fontSize - 3);

text("5", 0, 0);

pop();

}

[ Link ]
https://github.com/junkiyoshi/Insta20190404

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2019年4月3日2019年4月3日

Ring on the sphere. openFrameworks

[ Video ]

[ About ]
球体上の輪

Ring on the sphere.

[ 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) {};

	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 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) {};

ofEasyCam cam;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofSetColor(39);
	ofEnableDepthTest();
}

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

}

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

	this->cam.begin();
	ofRotateX(270);
	
	int radius = 300;

	for (int i = 0; i < 10; i++) {
	
		int theta = (ofGetFrameNum() + i * 18) % 180;
		vector<glm::vec3> vertices;
		vector<glm::vec3> sub_vertices;
		for (int deg = 0; deg <= 360; deg += 3) {

			auto location = glm::vec3(radius * cos(deg * DEG_TO_RAD) * sin(theta * DEG_TO_RAD),
				radius * sin(deg * DEG_TO_RAD) * sin(theta * DEG_TO_RAD),
				radius * cos(theta * DEG_TO_RAD));
			vertices.push_back(location);

			if (theta + 5 < 180) {

				auto sub_location = glm::vec3(radius * cos(deg * DEG_TO_RAD) * sin((theta + 5) *DEG_TO_RAD),
					radius * sin(deg * DEG_TO_RAD) * sin((theta + 5) * DEG_TO_RAD),
					radius * cos((theta + 5) * DEG_TO_RAD));
				sub_vertices.push_back(sub_location);
			}
		}

		

		ofBeginShape();
		ofVertices(vertices);
		if (sub_vertices.size() > 0) {

			std::reverse(sub_vertices.begin(), sub_vertices.end());
			ofVertices(sub_vertices);
		}
		ofEndShape();
	}

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetColor(39);

ofEnableDepthTest();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(270);

int radius = 300;

for (int i = 0; i < 10; i++) {

int theta = (ofGetFrameNum() + i * 18) % 180;

vector<glm::vec3> vertices;

vector<glm::vec3> sub_vertices;

for (int deg = 0; deg <= 360; deg += 3) {

auto location = glm::vec3(radius * cos(deg * DEG_TO_RAD) * sin(theta * DEG_TO_RAD),

radius * sin(deg * DEG_TO_RAD) * sin(theta * DEG_TO_RAD),

radius * cos(theta * DEG_TO_RAD));

vertices.push_back(location);

if (theta + 5 < 180) {

auto sub_location = glm::vec3(radius * cos(deg * DEG_TO_RAD) * sin((theta + 5) *DEG_TO_RAD),

radius * sin(deg * DEG_TO_RAD) * sin((theta + 5) * DEG_TO_RAD),

radius * cos((theta + 5) * DEG_TO_RAD));

sub_vertices.push_back(sub_location);

}

ofBeginShape();

ofVertices(vertices);

if (sub_vertices.size() > 0) {

std::reverse(sub_vertices.begin(), sub_vertices.end());

ofVertices(sub_vertices);

}

ofEndShape();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190403

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2019年4月2日2019年4月2日

Draw line from circle point to circle point. openFrameworks

[ Video ]

[ About ]
大きい円と小さい円の点同士で線を引き、小さい円を回転させる

Draw line from circle point to circle point.

[ 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(239);
	ofSetColor(39);
	ofSetLineWidth(1.5);
}

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

}

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

	int span = 144;
	for (int x = span * 0.5; x <= ofGetWidth() - span * 0.5; x += span) {

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

			ofPushMatrix();
			ofTranslate(x, y);

			int big_radius = 60;
			int small_radius = 40;
			int deg_gap = ofMap(ofNoise(x * 0.005, y * 0.005, ofGetFrameNum() * 0.005), 0, 1, 0, 360);
			for (int deg = 0; deg < 360; deg += 10) {

				auto big_location = glm::vec2(big_radius * cos(deg * DEG_TO_RAD), big_radius * sin(deg * DEG_TO_RAD));
				auto small_location = glm::vec2(small_radius * cos((deg + deg_gap) * DEG_TO_RAD), small_radius * sin((deg + deg_gap) * DEG_TO_RAD));

				ofDrawCircle(big_location, 2);
				ofDrawCircle(small_location, 2);

				ofDrawLine(big_location, small_location);
			}

			ofPopMatrix();
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetColor(39);

ofSetLineWidth(1.5);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

int span = 144;

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

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

ofPushMatrix();

ofTranslate(x, y);

int big_radius = 60;

int small_radius = 40;

int deg_gap = ofMap(ofNoise(x * 0.005, y * 0.005, ofGetFrameNum() * 0.005), 0, 1, 0, 360);

for (int deg = 0; deg < 360; deg += 10) {

auto big_location = glm::vec2(big_radius * cos(deg * DEG_TO_RAD), big_radius * sin(deg * DEG_TO_RAD));

auto small_location = glm::vec2(small_radius * cos((deg + deg_gap) * DEG_TO_RAD), small_radius * sin((deg + deg_gap) * DEG_TO_RAD));

ofDrawCircle(big_location, 2);

ofDrawCircle(small_location, 2);

ofDrawLine(big_location, small_location);

}

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190402

[ほしいものリスト]
Amazon

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