2019年4月 – ページ 9 – プログラミング de 落描き

2019年4月6日2019年4月6日

Rectangle is rotating. openFrameworks

[ Video ]

[ About ]
回転する四角

Rectangle is rotationg.

[ 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) {};

	glm::vec2 make_point(int len, int param);

	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) {};

glm::vec2 make_point(int len, int param);

ofEasyCam cam;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(39);
	ofSetLineWidth(3);

	ofEnableDepthTest();
}

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

}

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

	this->cam.begin();
	
	for (int z = -120; z <= 120; z += 30) {

		int start = ofGetFrameNum() * 0.5 + (z + 150) * 0.1;
		for (int param_start = start; param_start < start + 100; param_start += 10) {

			vector<glm::vec3> vertices;
			vector<glm::vec3> sub_vertices;
			for (int param = param_start; param <= param_start + 8; param++) {

				glm::vec3 location = glm::vec3(this->make_point(300, param), z + 10);
				glm::vec3 sub_location = glm::vec3(this->make_point(300, param), z - 10);

				vertices.push_back(location);
				sub_vertices.push_back(sub_location);

				if (param % 25 == 0) {

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

					ofBeginShape();
					ofVertices(vertices);
					ofVertices(sub_vertices);
					ofEndShape(true);

					vertices.clear();
					sub_vertices.clear();

					vertices.push_back(location);
					sub_vertices.push_back(sub_location);
				}
			}

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

			ofBeginShape();
			ofVertices(vertices);
			ofVertices(sub_vertices);
			ofEndShape(true);
		}
	}

	this->cam.end();
}

//--------------------------------------------------------------
glm::vec2 ofApp::make_point(int len, int param) {

	param = param % 100;
	if (param < 25) {

		return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);
	}
	else if (param < 50) {

		return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));
	}
	else if (param < 75) {

		return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);
	}
	else {

		return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));
	}
}

//--------------------------------------------------------------
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(3);

ofEnableDepthTest();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

for (int z = -120; z <= 120; z += 30) {

int start = ofGetFrameNum() * 0.5 + (z + 150) * 0.1;

for (int param_start = start; param_start < start + 100; param_start += 10) {

vector<glm::vec3> vertices;

vector<glm::vec3> sub_vertices;

for (int param = param_start; param <= param_start + 8; param++) {

glm::vec3 location = glm::vec3(this->make_point(300, param), z + 10);

glm::vec3 sub_location = glm::vec3(this->make_point(300, param), z - 10);

vertices.push_back(location);

sub_vertices.push_back(sub_location);

if (param % 25 == 0) {

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

ofBeginShape();

ofVertices(vertices);

ofVertices(sub_vertices);

ofEndShape(true);

vertices.clear();

sub_vertices.clear();

vertices.push_back(location);

sub_vertices.push_back(sub_location);

}

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

ofBeginShape();

ofVertices(vertices);

ofVertices(sub_vertices);

ofEndShape(true);

}

this->cam.end();

}

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

glm::vec2 ofApp::make_point(int len, int param) {

param = param % 100;

if (param < 25) {

return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);

}

else if (param < 50) {

return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));

}

else if (param < 75) {

return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);

}

else {

return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190406

2019年4月5日2019年4月5日

Rotate ring on the sphere. openFrameworks

[ Video ]

[ About ]
球体上の輪を回転させてみた

Rotate 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() {

	ofSeedRandom(39);
}

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

	this->cam.begin();
	ofRotateX(270);
		
	int radius = 300;
	for (int i = 0; i < 12; i++) {

		ofRotateY(ofRandom(360));

		int theta = (ofGetFrameNum() + i * 15) % 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 + 3 < 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() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(270);

int radius = 300;

for (int i = 0; i < 12; i++) {

ofRotateY(ofRandom(360));

int theta = (ofGetFrameNum() + i * 15) % 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 + 3 < 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/Insta20190405

2019年4月4日2019年4月4日

Flock of fives. Processing

[ Video ]

[ About ]
Processing勉強会 #25の課題「5」。

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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