プログラミング de 落描き – ページ 814 – 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12月5日2018年12月5日

Friendship. openFrameworks

[ Video ]

[ About ]
円同士が近づくと線を描きます。また、2つの円の角度を算出して欠けた円を描写します。

Draw line when circles approach each other. And, calculate the angle of two circles and draw the missing circle.

[ 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) {};

	vector<glm::vec2> locations;
};

#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) {};

vector<glm::vec2> locations;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofSetColor(39);
	ofSetLineWidth(3);
	ofSetCircleResolution(36);
}

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

	ofSeedRandom(39);
	this->locations.clear();

	for (int i = 0; i < 39; i++) {

		glm::vec2 location = glm::vec2(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, 0, ofGetWidth()), ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, 0, ofGetHeight()));
		this->locations.push_back(location);
	}
}

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

	float radius = 20;
	for (int i = 0; i < this->locations.size(); i++) {

		ofNoFill();
		ofDrawCircle(this->locations[i], radius);

		vector<glm::vec2> near_locations;
		for (int j = 0; j < this->locations.size(); j++) {

			if (i == j) {

				continue;
			}

			glm::vec2 distance = this->locations[i] - this->locations[j];
			float distance_lenght = glm::length(distance);

			if (distance_lenght < 80) {

				near_locations.push_back(this->locations[j]);
			}
		}

		if (near_locations.size() > 0) {

			int span = PI / near_locations.size();
			for (int j = 0; j < near_locations.size(); j++) {

				float angle = std::atan2(near_locations[j].y - this->locations[i].y, near_locations[j].x - this->locations[i].x);
				float near_angle = std::atan2(this->locations[i].y - near_locations[j].y, this->locations[i].x - near_locations[j].x);

				glm::vec2 point = this->locations[i] + glm::vec2(radius * cos(angle), radius * sin(angle));
				glm::vec2 near_point = near_locations[j] + glm::vec2(radius * cos(near_angle), radius * sin(near_angle));

				ofDrawLine(point, near_point);

				ofFill();
				ofBeginShape();
				for (float rad = near_angle - PI / 6; rad < near_angle + PI / 6; rad += PI / 360) {

					ofVertex(near_locations[j] + glm::vec2(radius * 0.8 * cos(rad), radius * 0.8 * sin(rad)));
				}
				ofVertex(near_locations[j]);
				ofEndShape(true);
			}
		}
	}
}

//--------------------------------------------------------------
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);

ofSetCircleResolution(36);

}

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

void ofApp::update() {

ofSeedRandom(39);

this->locations.clear();

for (int i = 0; i < 39; i++) {

glm::vec2 location = glm::vec2(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, 0, ofGetWidth()), ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, 0, ofGetHeight()));

this->locations.push_back(location);

}

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

void ofApp::draw() {

float radius = 20;

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

ofNoFill();

ofDrawCircle(this->locations[i], radius);

vector<glm::vec2> near_locations;

for (int j = 0; j < this->locations.size(); j++) {

if (i == j) {

continue;

}

glm::vec2 distance = this->locations[i] - this->locations[j];

float distance_lenght = glm::length(distance);

if (distance_lenght < 80) {

near_locations.push_back(this->locations[j]);

}

if (near_locations.size() > 0) {

int span = PI / near_locations.size();

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

float angle = std::atan2(near_locations[j].y - this->locations[i].y, near_locations[j].x - this->locations[i].x);

float near_angle = std::atan2(this->locations[i].y - near_locations[j].y, this->locations[i].x - near_locations[j].x);

glm::vec2 point = this->locations[i] + glm::vec2(radius * cos(angle), radius * sin(angle));

glm::vec2 near_point = near_locations[j] + glm::vec2(radius * cos(near_angle), radius * sin(near_angle));

ofDrawLine(point, near_point);

ofFill();

ofBeginShape();

for (float rad = near_angle - PI / 6; rad < near_angle + PI / 6; rad += PI / 360) {

ofVertex(near_locations[j] + glm::vec2(radius * 0.8 * cos(rad), radius * 0.8 * sin(rad)));

}

ofVertex(near_locations[j]);

ofEndShape(true);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20181205

2018年12月4日2018年12月4日

Half circle and half noise. openFrameworks

[ Video ]

[ About ]
半分が円形、半分はofNoiseで変化する図形。

Shape is half circle and half shape is changing from ofNoise.

[ 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);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofSetColor(39);
	ofSetLineWidth(2);
	ofSetCircleResolution(36);
}

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

}

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

	int base_radius = ofGetWidth() / 14;
	for (int x = base_radius; x < ofGetWidth(); x += base_radius * 2) {

		for (int y = base_radius; y < ofGetHeight(); y += base_radius * 2) {

			ofPushMatrix();
			ofTranslate(x, y);

			int radius = base_radius * 0.95;

			ofNoFill();
			ofDrawCircle(glm::vec2(), radius);

			radius = base_radius * 0.85;

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

				glm::vec2 point = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
				float threshold = ofMap(ofNoise((point.x + x) * 0.005, (point.y + y) * 0.005, ofGetFrameNum() * 0.03), 0, 1, 0, -radius);
				if (threshold > point.y) {

					point.y = threshold;
				}

				ofVertex(point);
			}
			ofEndShape(true);

			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(2);

ofSetCircleResolution(36);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

int base_radius = ofGetWidth() / 14;

for (int x = base_radius; x < ofGetWidth(); x += base_radius * 2) {

for (int y = base_radius; y < ofGetHeight(); y += base_radius * 2) {

ofPushMatrix();

ofTranslate(x, y);

int radius = base_radius * 0.95;

ofNoFill();

ofDrawCircle(glm::vec2(), radius);

radius = base_radius * 0.85;

ofFill();

ofBeginShape();

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

glm::vec2 point = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

float threshold = ofMap(ofNoise((point.x + x) * 0.005, (point.y + y) * 0.005, ofGetFrameNum() * 0.03), 0, 1, 0, -radius);

if (threshold > point.y) {

point.y = threshold;

}

ofVertex(point);

}

ofEndShape(true);

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20181204

2018年12月3日2018年12月3日

Color mountain. openFrameworks

[ Video ]

[ About ]
カラフルな山々。ゆらゆらしている図形を重ねて描写。

Color mountain. Overlap of shape.

[ 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);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofSetLineWidth(3);
}

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

	ofSeedRandom(39);
}

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

	for (int y = 0; y <= ofGetHeight(); y += 50) {

		float noise_seed = ofRandom(1000);
		
		ofColor color;
		color.setHsb(ofMap(y, 0, ofGetHeight(), 0, 255), 200, 255);

		vector<glm::vec2> vertices;
		for (int x = 0; x <= ofGetWidth(); x += 3) {

			int noise_y = y + ofMap(ofNoise(noise_seed, x * 0.003, ofGetFrameNum() * 0.005), 0, 1, -150, 150);
			ofVertex(glm::vec2(x, noise_y));
			vertices.push_back(glm::vec2(x, noise_y));
		}
		vertices.push_back(glm::vec2(ofGetWidth(), ofGetHeight()));
		vertices.push_back(glm::vec2(0, ofGetHeight()));

		ofSetColor(color);
		ofFill();
		ofBeginShape();
		ofVertices(vertices);
		ofEndShape(true);

		ofSetColor(39);
		ofNoFill();
		ofBeginShape();
		ofVertices(vertices);
		ofEndShape(true);
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetLineWidth(3);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

for (int y = 0; y <= ofGetHeight(); y += 50) {

float noise_seed = ofRandom(1000);

ofColor color;

color.setHsb(ofMap(y, 0, ofGetHeight(), 0, 255), 200, 255);

vector<glm::vec2> vertices;

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

int noise_y = y + ofMap(ofNoise(noise_seed, x * 0.003, ofGetFrameNum() * 0.005), 0, 1, -150, 150);

ofVertex(glm::vec2(x, noise_y));

vertices.push_back(glm::vec2(x, noise_y));

}

vertices.push_back(glm::vec2(ofGetWidth(), ofGetHeight()));

vertices.push_back(glm::vec2(0, ofGetHeight()));

ofSetColor(color);

ofFill();

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofSetColor(39);

ofNoFill();

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20181203

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