circle – ページ 19 – プログラミング de 落描き

2023年1月5日

twisted loop. Draw by openFrameworks

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[ About ]
ねじり輪。

[ 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) {};

	void setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float height);

	ofEasyCam cam;
	ofMesh face, frame;
};

#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) {};

void setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float height);

ofEasyCam cam;

ofMesh face, frame;

};

[ Link ]
https://github.com/junkiyoshi/Insta20230105

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2023年1月3日

Circles. Draw by openFrameworks

[ Video ]

[ About ]
円たち。

[ 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<ofColor> base_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) {};

vector<ofColor> base_color_list;

};

#include "ofApp.h"	

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openFrameworks");

	ofBackground(255);
	ofSetLineWidth(2);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_MULTIPLY);

	ofColor color;
	this->base_color_list.push_back(ofColor(0, 0, 0));
}

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

	ofSeedRandom(39);
}

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

	ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);

	int len = 8;
	ofColor color;
	for (int base_x = -270; base_x <= 270; base_x += 180) {

		color.setHsb(ofMap(base_x, -270, 450, 0, 255), 200, 255);

		for (int radius = 0; radius < 80; radius += 5) {

			ofMesh face, line;
			line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

			int start_deg = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0025), 0, 1, -360, 360);
			int deg_len = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -180, 360);

			for (int deg = start_deg; deg <= start_deg + deg_len; deg++) {

				face.addVertex(glm::vec3(base_x + radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));
				face.addVertex(glm::vec3(base_x + radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), 0));
				face.addVertex(glm::vec3(base_x + (radius + len) * cos((deg + 1) * DEG_TO_RAD), (radius + len) * sin((deg + 1) * DEG_TO_RAD), 0));
				face.addVertex(glm::vec3(base_x + (radius + len) * cos(deg * DEG_TO_RAD), (radius + len) * sin(deg * DEG_TO_RAD), 0));

				for (int i = 0; i < 4; i++) {

					face.addColor(ofColor(color, 128));
				}

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

				line.addVertex(glm::vec3(base_x + radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));
				line.addVertex(glm::vec3(base_x + radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), 0));
				line.addVertex(glm::vec3(base_x + (radius + len) * cos((deg + 1) * DEG_TO_RAD), (radius + len) * sin((deg + 1) * DEG_TO_RAD), 0));
				line.addVertex(glm::vec3(base_x + (radius + len) * cos(deg * DEG_TO_RAD), (radius + len) * sin(deg * DEG_TO_RAD), 0));

				for (int i = 0; i < 4; i++) {

					line.addColor(color);
				}

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

				if (deg == start_deg) {

					line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 4);
				}

				if (deg == start_deg + deg_len) {

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

			face.draw();
			line.draw();
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(255);

ofSetLineWidth(2);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_MULTIPLY);

ofColor color;

this->base_color_list.push_back(ofColor(0, 0, 0));

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);

int len = 8;

ofColor color;

for (int base_x = -270; base_x <= 270; base_x += 180) {

color.setHsb(ofMap(base_x, -270, 450, 0, 255), 200, 255);

for (int radius = 0; radius < 80; radius += 5) {

ofMesh face, line;

line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

int start_deg = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0025), 0, 1, -360, 360);

int deg_len = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -180, 360);

for (int deg = start_deg; deg <= start_deg + deg_len; deg++) {

face.addVertex(glm::vec3(base_x + radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));

face.addVertex(glm::vec3(base_x + radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), 0));

face.addVertex(glm::vec3(base_x + (radius + len) * cos((deg + 1) * DEG_TO_RAD), (radius + len) * sin((deg + 1) * DEG_TO_RAD), 0));

face.addVertex(glm::vec3(base_x + (radius + len) * cos(deg * DEG_TO_RAD), (radius + len) * sin(deg * DEG_TO_RAD), 0));

for (int i = 0; i < 4; i++) {

face.addColor(ofColor(color, 128));

}

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

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

line.addVertex(glm::vec3(base_x + radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));

line.addVertex(glm::vec3(base_x + radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), 0));

line.addVertex(glm::vec3(base_x + (radius + len) * cos((deg + 1) * DEG_TO_RAD), (radius + len) * sin((deg + 1) * DEG_TO_RAD), 0));

line.addVertex(glm::vec3(base_x + (radius + len) * cos(deg * DEG_TO_RAD), (radius + len) * sin(deg * DEG_TO_RAD), 0));

for (int i = 0; i < 4; i++) {

line.addColor(color);

}

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

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

if (deg == start_deg) {

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

}

if (deg == start_deg + deg_len) {

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

}

face.draw();

line.draw();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230103

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2022年12月26日

Tornado random walk. Draw by openFrameworks

[ Video ]

[ About ]
トルネード・ランダム・ウォーク。

[ Source ]

#pragma once
#include "ofMain.h"

class Walker {

public:
	Walker(glm::vec2 location, ofColor color);
	void update();
	void change_rotate();
	void draw_1();
	void draw_2();
private:

	glm::vec2 rotate_location;
	float rotate_radius;
	float rotate_deg;
	int rotate_direction;

	vector<glm::vec2> log;
	ofColor color;
};

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) {};

	vector<Walker> walker_list;
};

#pragma once

#include "ofMain.h"

class Walker {

public:

Walker(glm::vec2 location, ofColor color);

void update();

void change_rotate();

void draw_1();

void draw_2();

private:

glm::vec2 rotate_location;

float rotate_radius;

float rotate_deg;

int rotate_direction;

vector<glm::vec2> log;

ofColor color;

};

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) {};

vector<Walker> walker_list;

};

#include "ofApp.h"

//--------------------------------------------------------------
Walker::Walker(glm::vec2 location, ofColor color) {

	this->log.push_back(location);
	this->change_rotate();

	this->color = color;
}

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

	if (glm::length(this->log.back()) > 720) {

		this->log.clear();
		auto location = glm::vec2(ofRandom(-300, 300), ofRandom(-300, 300));
		this->log.push_back(location);
		this->change_rotate();
	}

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

		auto location = this->rotate_location + glm::vec2(this->rotate_radius * cos(this->rotate_deg * DEG_TO_RAD), this->rotate_radius * sin(this->rotate_deg * DEG_TO_RAD));
		this->rotate_deg += this->rotate_direction * 3;
		this->rotate_radius -= 0.15;

		this->log.push_back(location);
	}

	if (this->rotate_radius < 0 || ofRandom(100) < 0.15) {

		this->change_rotate();
	}

	while (this->log.size() > 250) { this->log.erase(this->log.begin()); }
}

//--------------------------------------------------------------
void Walker::change_rotate() {

	auto tmp_radius = ofRandom(30, 110);
	auto tmp_deg = this->rotate_deg + ofRandom(-90, 90);
	this->rotate_location = this->log.back() + glm::vec2(tmp_radius * cos(tmp_deg * DEG_TO_RAD), tmp_radius * sin(tmp_deg * DEG_TO_RAD));
	this->rotate_deg = 180 + tmp_deg;
	this->rotate_radius = tmp_radius;

	this->rotate_direction = ofRandom(100) < 50 ? 1 : -1;
}

//--------------------------------------------------------------
void Walker::draw_1() {

	ofSetColor(0);
	for (int i = 0; i < this->log.size() - 1; i++) {

		ofDrawCircle(this->log[i], 7);
	}	
}

//--------------------------------------------------------------
void Walker::draw_2() {

	for (int i = 0; i < this->log.size() - 1; i++) {

		ofSetColor(ofColor(color));
		ofDrawCircle(this->log[i], 5);
	}
}

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

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

	ofBackground(255);
	ofSetLineWidth(2);

	ofColor color;
	int number_of_actor = 17;
	for (int i = 0; i < number_of_actor; i++) {

		color.setHsb(ofMap(i, 0, number_of_actor, 0, 255), 130, 255);
		this->walker_list.push_back(Walker(glm::vec2(ofRandom(-300, 300), ofRandom(-300, 300)), color));
	}
}

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

	for (auto& walker : this->walker_list) {

		walker.update();
	}
}

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

	ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);

	for (auto& walker : this->walker_list) {

		walker.draw_1();
	}

	for (auto& walker : this->walker_list) {

		walker.draw_2();
	}
}

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

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

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#include "ofApp.h"

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

Walker::Walker(glm::vec2 location, ofColor color) {

this->log.push_back(location);

this->change_rotate();

this->color = color;

}

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

void Walker::update() {

if (glm::length(this->log.back()) > 720) {

this->log.clear();

auto location = glm::vec2(ofRandom(-300, 300), ofRandom(-300, 300));

this->log.push_back(location);

this->change_rotate();

}

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

auto location = this->rotate_location + glm::vec2(this->rotate_radius * cos(this->rotate_deg * DEG_TO_RAD), this->rotate_radius * sin(this->rotate_deg * DEG_TO_RAD));

this->rotate_deg += this->rotate_direction * 3;

this->rotate_radius -= 0.15;

this->log.push_back(location);

}

if (this->rotate_radius < 0 || ofRandom(100) < 0.15) {

this->change_rotate();

}

while (this->log.size() > 250) { this->log.erase(this->log.begin()); }

}

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

void Walker::change_rotate() {

auto tmp_radius = ofRandom(30, 110);

auto tmp_deg = this->rotate_deg + ofRandom(-90, 90);

this->rotate_location = this->log.back() + glm::vec2(tmp_radius * cos(tmp_deg * DEG_TO_RAD), tmp_radius * sin(tmp_deg * DEG_TO_RAD));

this->rotate_deg = 180 + tmp_deg;

this->rotate_radius = tmp_radius;

this->rotate_direction = ofRandom(100) < 50 ? 1 : -1;

}

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

void Walker::draw_1() {

ofSetColor(0);

for (int i = 0; i < this->log.size() - 1; i++) {

ofDrawCircle(this->log[i], 7);

}

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

void Walker::draw_2() {

for (int i = 0; i < this->log.size() - 1; i++) {

ofSetColor(ofColor(color));

ofDrawCircle(this->log[i], 5);

}

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(255);

ofSetLineWidth(2);

ofColor color;

int number_of_actor = 17;

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

color.setHsb(ofMap(i, 0, number_of_actor, 0, 255), 130, 255);

this->walker_list.push_back(Walker(glm::vec2(ofRandom(-300, 300), ofRandom(-300, 300)), color));

}

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

void ofApp::update() {

for (auto& walker : this->walker_list) {

walker.update();

}

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

void ofApp::draw() {

ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);

for (auto& walker : this->walker_list) {

walker.draw_1();

}

for (auto& walker : this->walker_list) {

walker.draw_2();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20221226

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