circle – ページ 37 – プログラミング de 落描き

2022年5月1日

Circles on the circle. Draw by openFrameworks

[ Video ]

[ About ]
サークルから生成されるサークル。

Circles generated from circles.

[ 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> location_list;
	vector<float> radius_list;
	vector<float> speed_list;
	vector<float> max_radius_list;
};

#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> location_list;

vector<float> radius_list;

vector<float> speed_list;

vector<float> max_radius_list;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofSetColor(255);
	ofNoFill();
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
}

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

	int base_radius = (ofGetFrameNum() * 2) % 420 + 60;

	for (int i = this->location_list.size() - 1; i >= 0; i--) {

		this->radius_list[i] += this->speed_list[i];

		if (this->radius_list[i] > this->max_radius_list[i]) {

			this->location_list.erase(this->location_list.begin() + i);
			this->radius_list.erase(this->radius_list.begin() + i);
			this->speed_list.erase(this->speed_list.begin() + i);
			this->max_radius_list.erase(this->max_radius_list.begin() + i);
		}
	}

	for (int i = 0; i < 8; i++) {

		int random_deg = ofRandom(360);
		int random_radius = base_radius + ofRandom(-10, 10);

		auto location = glm::vec2(random_radius * cos(random_deg * DEG_TO_RAD), random_radius * sin(random_deg * DEG_TO_RAD));
		this->location_list.push_back(location);
		this->radius_list.push_back(1);
		this->speed_list.push_back(ofRandom(0.2, 1.5));
		this->max_radius_list.push_back(ofRandom(5, 30));
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

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

		ofSetColor(255, ofMap(this->radius_list[i], 1, this->max_radius_list[i], 255, 30));
		ofDrawCircle(this->location_list[i], this->radius_list[i]);
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofSetColor(255);

ofNoFill();

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

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

void ofApp::update() {

int base_radius = (ofGetFrameNum() * 2) % 420 + 60;

for (int i = this->location_list.size() - 1; i >= 0; i--) {

this->radius_list[i] += this->speed_list[i];

if (this->radius_list[i] > this->max_radius_list[i]) {

this->location_list.erase(this->location_list.begin() + i);

this->radius_list.erase(this->radius_list.begin() + i);

this->speed_list.erase(this->speed_list.begin() + i);

this->max_radius_list.erase(this->max_radius_list.begin() + i);

}

for (int i = 0; i < 8; i++) {

int random_deg = ofRandom(360);

int random_radius = base_radius + ofRandom(-10, 10);

auto location = glm::vec2(random_radius * cos(random_deg * DEG_TO_RAD), random_radius * sin(random_deg * DEG_TO_RAD));

this->location_list.push_back(location);

this->radius_list.push_back(1);

this->speed_list.push_back(ofRandom(0.2, 1.5));

this->max_radius_list.push_back(ofRandom(5, 30));

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

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

ofSetColor(255, ofMap(this->radius_list[i], 1, this->max_radius_list[i], 255, 30));

ofDrawCircle(this->location_list[i], this->radius_list[i]);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220501

2022年4月28日

Radial line. Draw by openFrameworks

[ Video ]

[ About ]
放射状の線。

Radial line.

[ 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) {};

	ofMesh face, line;
};

#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) {};

ofMesh face, line;

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openframeworks");

	ofBackground(0);
	ofSetLineWidth(1.5);
	ofSetCircleResolution(60);
	
	this->line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
}

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

	ofSeedRandom(39);

	this->face.clear();
	this->line.clear();

	auto span = 3;
	auto radius_span = 10;
	for (auto deg = 0; deg < 360; deg += 6) {

		for (auto radius = 150; radius <= 1024; radius += radius_span) {

			auto prev_location = glm::vec2((radius - radius_span) * cos(deg * DEG_TO_RAD), (radius - radius_span) * sin(deg * DEG_TO_RAD));
			auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
			auto next_location = glm::vec2((radius + radius_span) * cos(deg * DEG_TO_RAD), (radius + radius_span) * sin(deg * DEG_TO_RAD));

			auto left = glm::vec2(radius * cos((deg + span * 0.5) * DEG_TO_RAD), radius * sin((deg + span * 0.5) * DEG_TO_RAD));
			auto right = glm::vec2(radius * cos((deg - span * 0.5) * DEG_TO_RAD), radius * sin((deg - span * 0.5) * DEG_TO_RAD));
			auto next_left = glm::vec2((radius + radius_span) * cos((deg + span * 0.5) * DEG_TO_RAD), (radius + radius_span) * sin((deg + span * 0.5) * DEG_TO_RAD));
			auto next_right = glm::vec2((radius + radius_span) * cos((deg - span * 0.5) * DEG_TO_RAD), (radius + radius_span) * sin((deg - span * 0.5) * DEG_TO_RAD));

			auto prev_noise_value = ofNoise(glm::vec3(prev_location * 0.05, ofGetFrameNum() * 0.0085));
			auto noise_value = ofNoise(glm::vec3(location * 0.05, ofGetFrameNum() * 0.0085));
			auto next_noise_value = ofNoise(glm::vec3(next_location * 0.05, ofGetFrameNum() * 0.0085));
			auto threshold = 0.65;
			if (noise_value < threshold) {

				this->face.addVertex(glm::vec3(left, 0));
				this->face.addVertex(glm::vec3(next_left, 0));
				this->face.addVertex(glm::vec3(next_right, 0));
				this->face.addVertex(glm::vec3(right, 0));

				this->line.addVertex(glm::vec3(left, 0));
				this->line.addVertex(glm::vec3(next_left, 0));
				this->line.addVertex(glm::vec3(next_right, 0));
				this->line.addVertex(glm::vec3(right, 0));

				this->face.addIndex(this->face.getNumVertices() - 1); this->face.addIndex(this->face.getNumVertices() - 2); this->face.addIndex(this->face.getNumVertices() - 3);
				this->face.addIndex(this->face.getNumVertices() - 1); this->face.addIndex(this->face.getNumVertices() - 3); this->face.addIndex(this->face.getNumVertices() - 4);

				this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2);
				this->line.addIndex(this->line.getNumVertices() - 3); this->line.addIndex(this->line.getNumVertices() - 4);

				if (radius == 150 || prev_noise_value > threshold) {

					this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 4);
				}
				if (next_noise_value > threshold) {

					this->line.addIndex(this->line.getNumVertices() - 2); this->line.addIndex(this->line.getNumVertices() - 3);
				}
			}
		}
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);
	
	ofSetColor(239, 69, 74);
	ofFill();
	ofDrawCircle(glm::vec2(), 135);

	this->face.draw();
	
	ofSetColor(255);
	ofNoFill();
	ofDrawCircle(glm::vec2(), 135);

	this->line.drawWireframe();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofSetLineWidth(1.5);

ofSetCircleResolution(60);

this->line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->line.clear();

auto span = 3;

auto radius_span = 10;

for (auto deg = 0; deg < 360; deg += 6) {

for (auto radius = 150; radius <= 1024; radius += radius_span) {

auto prev_location = glm::vec2((radius - radius_span) * cos(deg * DEG_TO_RAD), (radius - radius_span) * sin(deg * DEG_TO_RAD));

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

auto next_location = glm::vec2((radius + radius_span) * cos(deg * DEG_TO_RAD), (radius + radius_span) * sin(deg * DEG_TO_RAD));

auto left = glm::vec2(radius * cos((deg + span * 0.5) * DEG_TO_RAD), radius * sin((deg + span * 0.5) * DEG_TO_RAD));

auto right = glm::vec2(radius * cos((deg - span * 0.5) * DEG_TO_RAD), radius * sin((deg - span * 0.5) * DEG_TO_RAD));

auto next_left = glm::vec2((radius + radius_span) * cos((deg + span * 0.5) * DEG_TO_RAD), (radius + radius_span) * sin((deg + span * 0.5) * DEG_TO_RAD));

auto next_right = glm::vec2((radius + radius_span) * cos((deg - span * 0.5) * DEG_TO_RAD), (radius + radius_span) * sin((deg - span * 0.5) * DEG_TO_RAD));

auto prev_noise_value = ofNoise(glm::vec3(prev_location * 0.05, ofGetFrameNum() * 0.0085));

auto noise_value = ofNoise(glm::vec3(location * 0.05, ofGetFrameNum() * 0.0085));

auto next_noise_value = ofNoise(glm::vec3(next_location * 0.05, ofGetFrameNum() * 0.0085));

auto threshold = 0.65;

if (noise_value < threshold) {

this->face.addVertex(glm::vec3(left, 0));

this->face.addVertex(glm::vec3(next_left, 0));

this->face.addVertex(glm::vec3(next_right, 0));

this->face.addVertex(glm::vec3(right, 0));

this->line.addVertex(glm::vec3(left, 0));

this->line.addVertex(glm::vec3(next_left, 0));

this->line.addVertex(glm::vec3(next_right, 0));

this->line.addVertex(glm::vec3(right, 0));

this->face.addIndex(this->face.getNumVertices() - 1); this->face.addIndex(this->face.getNumVertices() - 2); this->face.addIndex(this->face.getNumVertices() - 3);

this->face.addIndex(this->face.getNumVertices() - 1); this->face.addIndex(this->face.getNumVertices() - 3); this->face.addIndex(this->face.getNumVertices() - 4);

this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2);

this->line.addIndex(this->line.getNumVertices() - 3); this->line.addIndex(this->line.getNumVertices() - 4);

if (radius == 150 || prev_noise_value > threshold) {

this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 4);

}

if (next_noise_value > threshold) {

this->line.addIndex(this->line.getNumVertices() - 2); this->line.addIndex(this->line.getNumVertices() - 3);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

ofSetColor(239, 69, 74);

ofFill();

ofDrawCircle(glm::vec2(), 135);

this->face.draw();

ofSetColor(255);

ofNoFill();

ofDrawCircle(glm::vec2(), 135);

this->line.drawWireframe();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220428

2022年4月22日2022年4月22日

Galaxy. Draw by openFrameworks

[ Video ]

[ About ]
宇宙みを目指して。

[ 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) {};

	ofEasyCam cam;

	ofMesh mesh;
	vector<float> radius_list;
	vector<float> speed_list;
	vector<float> deg_list;
	vector<float> deg_speed_list;
	vector<ofColor> color_list;
};

#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) {};

ofEasyCam cam;

ofMesh mesh;

vector<float> radius_list;

vector<float> speed_list;

vector<float> deg_list;

vector<float> deg_speed_list;

vector<ofColor> color_list;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
	ofEnableDepthTest();

	this->mesh.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
}

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

	this->mesh.clear();

	ofColor color;
	for (int i = 0; i < 5; i++) {

		this->radius_list.push_back(100);
		this->speed_list.push_back(ofRandom(0.5, 1.5));
		this->deg_list.push_back(ofRandom(360));
		this->deg_speed_list.push_back(ofRandom(1, 2));
		color.setHsb(ofRandom(255), 130, 255);
		this->color_list.push_back(color);
	}

	for (int i = this->radius_list.size() - 1; i >= 0; i--) {

		this->radius_list[i] += this->speed_list[i];
		this->deg_list[i] += this->deg_speed_list[i];

		this->mesh.addVertex(glm::vec3(this->radius_list[i] * cos(this->deg_list[i] * DEG_TO_RAD), this->radius_list[i] * sin(this->deg_list[i] * DEG_TO_RAD), 0));
		this->mesh.addColor(this->color_list[i]);

		if (this->radius_list[i] > 450) {

			this->radius_list.erase(this->radius_list.begin() + i);
			this->speed_list.erase(this->speed_list.begin() + i);
			this->deg_list.erase(this->deg_list.begin() + i);
			this->deg_speed_list.erase(this->deg_speed_list.begin() + i);
			this->color_list.erase(this->color_list.begin() + i);
		}
	}

	for (int i = 0; i < this->mesh.getNumVertices(); i++) {

		for (int k = i + 1; k < this->mesh.getNumVertices(); k++) {

			auto distance = glm::distance(this->mesh.getVertex(i), this->mesh.getVertex(k));
			if (distance < 13) {

				this->mesh.addIndex(i); this->mesh.addIndex(k);
			}

			auto alpha = distance < 10 ? 255 : ofMap(distance, 10, 13, 255, 0);
			if (this->mesh.getColor(i).a < alpha) {

				this->mesh.setColor(i, ofColor(this->mesh.getColor(i), alpha));
			}

			if (this->mesh.getColor(k).a < alpha) {

				this->mesh.setColor(k, ofColor(this->mesh.getColor(k), alpha));
			}
		}
	}
}

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

	this->cam.begin();

	ofSetColor(0);
	ofDrawSphere(glm::vec3(), 100);

	for (int i = 0; i < this->mesh.getNumVertices(); i++) {
		
		ofSetColor(this->mesh.getColor(i));
		ofDrawSphere(this->mesh.getVertex(i), 1);
	}

	this->mesh.drawWireframe();

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

ofEnableDepthTest();

this->mesh.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

}

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

void ofApp::update() {

this->mesh.clear();

ofColor color;

for (int i = 0; i < 5; i++) {

this->radius_list.push_back(100);

this->speed_list.push_back(ofRandom(0.5, 1.5));

this->deg_list.push_back(ofRandom(360));

this->deg_speed_list.push_back(ofRandom(1, 2));

color.setHsb(ofRandom(255), 130, 255);

this->color_list.push_back(color);

}

for (int i = this->radius_list.size() - 1; i >= 0; i--) {

this->radius_list[i] += this->speed_list[i];

this->deg_list[i] += this->deg_speed_list[i];

this->mesh.addVertex(glm::vec3(this->radius_list[i] * cos(this->deg_list[i] * DEG_TO_RAD), this->radius_list[i] * sin(this->deg_list[i] * DEG_TO_RAD), 0));

this->mesh.addColor(this->color_list[i]);

if (this->radius_list[i] > 450) {

this->radius_list.erase(this->radius_list.begin() + i);

this->speed_list.erase(this->speed_list.begin() + i);

this->deg_list.erase(this->deg_list.begin() + i);

this->deg_speed_list.erase(this->deg_speed_list.begin() + i);

this->color_list.erase(this->color_list.begin() + i);

}

for (int i = 0; i < this->mesh.getNumVertices(); i++) {

for (int k = i + 1; k < this->mesh.getNumVertices(); k++) {

auto distance = glm::distance(this->mesh.getVertex(i), this->mesh.getVertex(k));

if (distance < 13) {

this->mesh.addIndex(i); this->mesh.addIndex(k);

}

auto alpha = distance < 10 ? 255 : ofMap(distance, 10, 13, 255, 0);

if (this->mesh.getColor(i).a < alpha) {

this->mesh.setColor(i, ofColor(this->mesh.getColor(i), alpha));

}

if (this->mesh.getColor(k).a < alpha) {

this->mesh.setColor(k, ofColor(this->mesh.getColor(k), alpha));

}

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

void ofApp::draw() {

this->cam.begin();

ofSetColor(0);

ofDrawSphere(glm::vec3(), 100);

for (int i = 0; i < this->mesh.getNumVertices(); i++) {

ofSetColor(this->mesh.getColor(i));

ofDrawSphere(this->mesh.getVertex(i), 1);

}

this->mesh.drawWireframe();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220422

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