プログラミング de 落描き – ページ 862 – 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10日2018年6月10日

2色の渦 openFrameworks

[ Video ]

[ About ]
赤と青の2色の線で渦を描写

[ 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) {};
};

#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");

	ofSetLineWidth(2);
}

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

}

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

	ofColor colors[] = {ofColor(139, 39, 39), ofColor(39, 39, 139)};

	for (int x = 0; x < 3; x++) {

		for (int y = 0; y < 3; y++) {

			ofPushMatrix();
			ofTranslate(x * 240 + 120, y * 240 + 120);

			for (int radius = 20; radius < 120; radius += 10) {

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

					int deg_start = radius + ofGetFrameNum() + (x + y) * 120 + i * 180;
					for (int deg = deg_start; deg < deg_start + 120; deg += 5) {

						ofPoint p1(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
						ofPoint p2(radius * cos((deg + 5) * DEG_TO_RAD), radius * sin((deg + 5) * DEG_TO_RAD));

						ofSetColor(colors[i], ofMap(deg, deg_start, deg_start + 120, 0, 255));
						ofDrawLine(p1, p2);
					}

					ofDrawCircle(radius * cos((deg_start + 120) * DEG_TO_RAD), radius * sin((deg_start + 120) * DEG_TO_RAD), 3);
				}
			}

			ofPopMatrix();
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(239);

ofSetWindowTitle("Insta");

ofSetLineWidth(2);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofColor colors[] = {ofColor(139, 39, 39), ofColor(39, 39, 139)};

for (int x = 0; x < 3; x++) {

for (int y = 0; y < 3; y++) {

ofPushMatrix();

ofTranslate(x * 240 + 120, y * 240 + 120);

for (int radius = 20; radius < 120; radius += 10) {

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

int deg_start = radius + ofGetFrameNum() + (x + y) * 120 + i * 180;

for (int deg = deg_start; deg < deg_start + 120; deg += 5) {

ofPoint p1(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

ofPoint p2(radius * cos((deg + 5) * DEG_TO_RAD), radius * sin((deg + 5) * DEG_TO_RAD));

ofSetColor(colors[i], ofMap(deg, deg_start, deg_start + 120, 0, 255));

ofDrawLine(p1, p2);

}

ofDrawCircle(radius * cos((deg_start + 120) * DEG_TO_RAD), radius * sin((deg_start + 120) * DEG_TO_RAD), 3);

}

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180610

2018年6月9日2018年6月9日

Rectangle座標を周回する線 openFrameworks

[ Video ]

[ About ]
Rectangleの座標を周回する線を重ねています。

[ 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 Member
	ofEasyCam cam;

	// 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 Member

ofEasyCam cam;

// Make Method

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

};

#include "ofApp.h"

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

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

	ofSetLineWidth(2);
	ofEnableDepthTest();
}

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

}

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

	float len = 720;

	this->cam.begin();
	ofRotateX(90);

	for (int z = 0; z <= len; z += 25) {

		for(int line = 0; line < 180; line++){
		
			ofPoint p1 = this->make_rect_point(len, ofGetFrameNum() + z + line, z - len * 0.5);
			ofPoint p2 = this->make_rect_point(len, ofGetFrameNum() + z + line + 1, z - len * 0.5);

			ofSetColor(239, ofMap(line, 0, 120, 0, 255));
			ofDrawLine(p1, p2);
		}

		ofDrawSphere(this->make_rect_point(len, ofGetFrameNum() + z + 180, z - len * 0.5), 5);
	}

	this->cam.end();
}

//--------------------------------------------------------------
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(39);

ofSetWindowTitle("Insta");

ofSetLineWidth(2);

ofEnableDepthTest();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

float len = 720;

this->cam.begin();

ofRotateX(90);

for (int z = 0; z <= len; z += 25) {

for(int line = 0; line < 180; line++){

ofPoint p1 = this->make_rect_point(len, ofGetFrameNum() + z + line, z - len * 0.5);

ofPoint p2 = this->make_rect_point(len, ofGetFrameNum() + z + line + 1, z - len * 0.5);

ofSetColor(239, ofMap(line, 0, 120, 0, 255));

ofDrawLine(p1, p2);

}

ofDrawSphere(this->make_rect_point(len, ofGetFrameNum() + z + 180, z - len * 0.5), 5);

}

this->cam.end();

}

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

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/Insta20180609

2018年6月8日2018年6月8日

4隅の円 openFrameworks

[ Video ]

[ About ]
特定の角度範囲の円弧だけを描写する円を4隅に配置しました。

[ 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(39);
	ofSetWindowTitle("Insta");

	ofSetLineWidth(3);
}

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

}

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

	vector<ofPoint> points;
	points.push_back(ofPoint(0, 0));
	points.push_back(ofPoint(ofGetWidth(), ofGetHeight()));
	points.push_back(ofPoint(0, ofGetHeight()));
	points.push_back(ofPoint(ofGetWidth(), 0));

	int deg_span = 1;
	int color_start = 0;
	int color_end = 120;

	ofSetColor(239);

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

		ofPushMatrix();
		ofTranslate(points[i]);

		for (int radius = 150; radius <= 380; radius += 15) {

			int start_deg = i * 90;
			for (int deg = start_deg; deg < start_deg + 360; deg += deg_span) {

				int value = (ofGetFrameNum() * 2 + deg + radius) % 360;
				if (value > color_start && value < color_end) {
					
					ofPoint start = ofPoint(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
					ofPoint end = ofPoint(radius * cos((deg + deg_span) * DEG_TO_RAD), radius * sin((deg + deg_span) * DEG_TO_RAD));

					ofDrawLine(start, end);
				}
			}
		}

		ofPopMatrix();
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(39);

ofSetWindowTitle("Insta");

ofSetLineWidth(3);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

vector<ofPoint> points;

points.push_back(ofPoint(0, 0));

points.push_back(ofPoint(ofGetWidth(), ofGetHeight()));

points.push_back(ofPoint(0, ofGetHeight()));

points.push_back(ofPoint(ofGetWidth(), 0));

int deg_span = 1;

int color_start = 0;

int color_end = 120;

ofSetColor(239);

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

ofPushMatrix();

ofTranslate(points[i]);

for (int radius = 150; radius <= 380; radius += 15) {

int start_deg = i * 90;

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

int value = (ofGetFrameNum() * 2 + deg + radius) % 360;

if (value > color_start && value < color_end) {

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

ofPoint end = ofPoint(radius * cos((deg + deg_span) * DEG_TO_RAD), radius * sin((deg + deg_span) * DEG_TO_RAD));

ofDrawLine(start, end);

}

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180608

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