2022年8月 – ページ 2 – プログラミング de 落描き

2022年8月28日

Right angle. Draw by openFrameworks

[ Video ]

[ About ]
90度。

[ 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(255);
	ofSetColor(0);
	ofSetLineWidth(2);
}

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

	ofSeedRandom(39);
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	int size = 45;

	for (int x = size * -7; x <= size * 7; x += size) {

		for (int y = size * -7; y <= size * 7; y += size) {

			ofPushMatrix();
			ofTranslate(x, y);

			int param = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0015), 0, 1, 0, 4);

			switch (param) {
			case 0:

				ofNoFill();
				ofSetColor(0);
				ofDrawLine(size * -0.45, 0, 0, 0);
				ofDrawLine(0, 0, 0, size * -0.45);

				ofFill();
				ofSetColor(255);
				ofDrawCircle(0, 0, size * 0.08);

				ofNoFill();
				ofSetColor(0);
				ofDrawCircle(0, 0, size * 0.08);

				break;
			case 1:

				ofNoFill();
				ofSetColor(0);
				ofDrawLine(0, size * -0.45, 0, 0);
				ofDrawLine(0, 0, size * 0.45, 0);

				ofFill();
				ofSetColor(255);
				ofDrawCircle(0, 0, size * 0.08);

				ofNoFill();
				ofSetColor(0);
				ofDrawCircle(0, 0, size * 0.08);

				break;
			case 2:

				ofNoFill();
				ofSetColor(0);
				ofDrawLine(size * 0.45, 0, 0, 0);
				ofDrawLine(0, 0, 0, size * 0.45);

				ofFill();
				ofSetColor(255);
				ofDrawCircle(0, 0, size * 0.08);

				ofNoFill();
				ofSetColor(0);
				ofDrawCircle(0, 0, size * 0.08);

				break;
			case 3:
			
				ofNoFill();
				ofSetColor(0);
				ofDrawLine(0, size * 0.45, 0, 0);
				ofDrawLine(0, 0, -size * 0.45, 0);

				ofFill();
				ofSetColor(255);
				ofDrawCircle(0, 0, size * 0.08);

				ofNoFill();
				ofSetColor(0);
				ofDrawCircle(0, 0, size * 0.08);

				break;
			}

			ofPopMatrix();
		}
	}
	
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(255);

ofSetColor(0);

ofSetLineWidth(2);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

int size = 45;

for (int x = size * -7; x <= size * 7; x += size) {

for (int y = size * -7; y <= size * 7; y += size) {

ofPushMatrix();

ofTranslate(x, y);

int param = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0015), 0, 1, 0, 4);

switch (param) {

case 0:

ofNoFill();

ofSetColor(0);

ofDrawLine(size * -0.45, 0, 0, 0);

ofDrawLine(0, 0, 0, size * -0.45);

ofFill();

ofSetColor(255);

ofDrawCircle(0, 0, size * 0.08);

ofNoFill();

ofSetColor(0);

ofDrawCircle(0, 0, size * 0.08);

break;

case 1:

ofNoFill();

ofSetColor(0);

ofDrawLine(0, size * -0.45, 0, 0);

ofDrawLine(0, 0, size * 0.45, 0);

ofFill();

ofSetColor(255);

ofDrawCircle(0, 0, size * 0.08);

ofNoFill();

ofSetColor(0);

ofDrawCircle(0, 0, size * 0.08);

break;

case 2:

ofNoFill();

ofSetColor(0);

ofDrawLine(size * 0.45, 0, 0, 0);

ofDrawLine(0, 0, 0, size * 0.45);

ofFill();

ofSetColor(255);

ofDrawCircle(0, 0, size * 0.08);

ofNoFill();

ofSetColor(0);

ofDrawCircle(0, 0, size * 0.08);

break;

case 3:

ofNoFill();

ofSetColor(0);

ofDrawLine(0, size * 0.45, 0, 0);

ofDrawLine(0, 0, -size * 0.45, 0);

ofFill();

ofSetColor(255);

ofDrawCircle(0, 0, size * 0.08);

ofNoFill();

ofSetColor(0);

ofDrawCircle(0, 0, size * 0.08);

break;

}

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220828

2022年8月27日

Radial arrows. Draw by openFrameworks

[ Video ]

[ About ]
放射状の矢印。

[ 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 draw_arrow(glm::vec2 location, glm::vec2 next_location, float size);
};

#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 draw_arrow(glm::vec2 location, glm::vec2 next_location, float size);

};

#include "ofApp.h"	

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

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

	ofBackground(0);
}

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

	ofSeedRandom(39);
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	int size = 30;

	for (int x = size * -10; x <= size * 10; x += size * 2) {

		for (int y = size * -10; y <= size * 10; y += size * 2) {

			if (x == 0 && y == 0) { continue; }

			auto location = glm::vec2(x, y);
			int distance = glm::length(location); 
			int deg = ofMap(ofNoise(distance * 0.003 - ofGetFrameNum() * 0.038), 0, 1, -120, 120);

			deg += std::atan2(location.y, location.x) * RAD_TO_DEG;

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

			ofSetLineWidth(0.25);
			ofDrawCircle(location, size * 0.9);

			ofSetLineWidth(1);
			this->draw_arrow(location, next_location, size * 0.7);
		}
	}
}

//--------------------------------------------------------------
void ofApp::draw_arrow(glm::vec2 location, glm::vec2 next_location, float size) {

	auto angle = std::atan2(next_location.y - location.y, next_location.x - location.x);

	ofSetColor(0);
	ofFill();
	ofBeginShape();
	ofVertex(glm::vec2(size * 0.8 * cos(angle), size * 0.8 * sin(angle)) + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) + location);
	ofEndShape(true);

	ofBeginShape();
	ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5 + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5 + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 + location);
	ofEndShape(true);

	ofSetColor(255);
	ofNoFill();
	ofBeginShape();
	ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) + location);
	ofVertex(glm::vec2(size * 0.8 * cos(angle), size * 0.8 * sin(angle)) + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 + location);
	ofEndShape();

	ofBeginShape();
	ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5 + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5 + location);
	ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 + location);
	ofEndShape();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

int size = 30;

for (int x = size * -10; x <= size * 10; x += size * 2) {

for (int y = size * -10; y <= size * 10; y += size * 2) {

if (x == 0 && y == 0) { continue; }

auto location = glm::vec2(x, y);

int distance = glm::length(location);

int deg = ofMap(ofNoise(distance * 0.003 - ofGetFrameNum() * 0.038), 0, 1, -120, 120);

deg += std::atan2(location.y, location.x) * RAD_TO_DEG;

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

ofSetLineWidth(0.25);

ofDrawCircle(location, size * 0.9);

ofSetLineWidth(1);

this->draw_arrow(location, next_location, size * 0.7);

}

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

void ofApp::draw_arrow(glm::vec2 location, glm::vec2 next_location, float size) {

auto angle = std::atan2(next_location.y - location.y, next_location.x - location.x);

ofSetColor(0);

ofFill();

ofBeginShape();

ofVertex(glm::vec2(size * 0.8 * cos(angle), size * 0.8 * sin(angle)) + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) + location);

ofEndShape(true);

ofBeginShape();

ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5 + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5 + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 + location);

ofEndShape(true);

ofSetColor(255);

ofNoFill();

ofBeginShape();

ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) + location);

ofVertex(glm::vec2(size * 0.8 * cos(angle), size * 0.8 * sin(angle)) + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 + location);

ofEndShape();

ofBeginShape();

ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5 + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5 + location);

ofVertex(glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 + location);

ofEndShape();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220827

2022年8月26日

Rut. Draw by openFrameworks

[ Video ]

[ About ]
轍。

[ 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, draw_mesh, line_mesh;
	vector<float> param_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, draw_mesh, line_mesh;

vector<float> param_list;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofSetLineWidth(2);
	ofEnableDepthTest();

	auto ico_sphere = ofIcoSpherePrimitive(300, 4);
	this->mesh = ico_sphere.getMesh();

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

		this->param_list.push_back(0);
	}
}

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

	ofSeedRandom(39);
	
	this->draw_mesh = this->mesh;
	this->line_mesh = this->mesh;

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

		auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));

		auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.005), 0, 1, -PI * 2, PI * 2), glm::vec3(1, 0, 0));
		auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.005), 0, 1, -PI * 2, PI * 2), glm::vec3(0, 1, 0));
		auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed.z, ofGetFrameNum() * 0.005), 0, 1, -PI * 2, PI * 2), glm::vec3(0, 0, 1));

		glm::vec3 location = glm::vec4(0, 0, 300, 0) * rotation_z * rotation_y * rotation_x;

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

			auto distance = glm::distance(location, this->draw_mesh.getVertex(i));
			if (distance < 30) {

				this->param_list[i] = 50;
			}
		}
	}

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

		glm::vec3 vertex = this->draw_mesh.getVertex(i);
		vertex = glm::normalize(vertex) * (300 - this->param_list[i]);

		ofColor color = ofColor(ofMap(this->param_list[i], 50, 0, 0, 239));

		this->draw_mesh.setVertex(i, vertex);
		this->line_mesh.setVertex(i, vertex);
		this->draw_mesh.addColor(color);
	}

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

		this->param_list[i] -= 1;
		if (this->param_list[i] < 0) { this->param_list[i] = 0; }
	}
}

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

	this->cam.begin();
	ofRotateX(ofGetFrameNum() * 0.37);
	ofRotateY(ofGetFrameNum() * 0.72);

	this->draw_mesh.draw();

	ofSetColor(255);
	this->line_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);

ofSetLineWidth(2);

ofEnableDepthTest();

auto ico_sphere = ofIcoSpherePrimitive(300, 4);

this->mesh = ico_sphere.getMesh();

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

this->param_list.push_back(0);

}

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

void ofApp::update() {

ofSeedRandom(39);

this->draw_mesh = this->mesh;

this->line_mesh = this->mesh;

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

auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));

auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.005), 0, 1, -PI * 2, PI * 2), glm::vec3(1, 0, 0));

auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.005), 0, 1, -PI * 2, PI * 2), glm::vec3(0, 1, 0));

auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed.z, ofGetFrameNum() * 0.005), 0, 1, -PI * 2, PI * 2), glm::vec3(0, 0, 1));

glm::vec3 location = glm::vec4(0, 0, 300, 0) * rotation_z * rotation_y * rotation_x;

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

auto distance = glm::distance(location, this->draw_mesh.getVertex(i));

if (distance < 30) {

this->param_list[i] = 50;

}

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

glm::vec3 vertex = this->draw_mesh.getVertex(i);

vertex = glm::normalize(vertex) * (300 - this->param_list[i]);

ofColor color = ofColor(ofMap(this->param_list[i], 50, 0, 0, 239));

this->draw_mesh.setVertex(i, vertex);

this->line_mesh.setVertex(i, vertex);

this->draw_mesh.addColor(color);

}

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

this->param_list[i] -= 1;

if (this->param_list[i] < 0) { this->param_list[i] = 0; }

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(ofGetFrameNum() * 0.37);

ofRotateY(ofGetFrameNum() * 0.72);

this->draw_mesh.draw();

ofSetColor(255);

this->line_mesh.drawWireframe();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220826

2022年8月
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