programming – ページ 23 – プログラミング de 落描き

2023年7月10日

Train of arrows. Draw by openFrameworks

[ Video ]

[ About ]
矢印の列車。

[ 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, ofColor fill_color, ofColor no_fill_color);

	vector<glm::vec2> location_list;
	vector<int> life_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) {};

void draw_arrow(glm::vec2 location, glm::vec2 next_location, float size, ofColor fill_color, ofColor no_fill_color);

vector<glm::vec2> location_list;

vector<int> life_list;

vector<ofColor> color_list;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(39);
	
}
//--------------------------------------------------------------
void ofApp::update() {

	ofColor color;
	for (int i = 0; i < 10; i++) {

		this->location_list.push_back(glm::vec2(ofRandom(-360, 360), ofRandom(-360, 360)));
		this->life_list.push_back(0);

		color.setHsb(ofRandom(255), 180, 255);
		this->color_list.push_back(color);
	}

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

		if (abs(this->location_list[i].x) > 460 || abs(this->location_list[i].y) > 460) {

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

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

	ofTranslate(ofGetWindowSize() * 0.5);

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

		auto deg = ofMap(ofNoise(this->location_list[i].x * 0.0035, this->location_list[i].y * 0.0035, ofGetFrameNum() * 0.005), 0, 1, -360, 360);
		auto next = this->location_list[i] + glm::vec2(5 * cos(deg * DEG_TO_RAD), 5 * sin(deg * DEG_TO_RAD));

		auto size = this->life_list[i] < 10 ? ofMap(this->life_list[i], 0, 10, 0, 19) : 20;

		this->draw_arrow(this->location_list[i], next, size, this->color_list[i], ofColor(39));

		this->location_list[i] = next;
		this->life_list[i]++;
	}
}

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

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

	ofSetColor(fill_color);
	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(no_fill_color);
	ofNoFill();
	ofSetLineWidth(3);
	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());
}

100

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(39);

}

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

void ofApp::update() {

ofColor color;

for (int i = 0; i < 10; i++) {

this->location_list.push_back(glm::vec2(ofRandom(-360, 360), ofRandom(-360, 360)));

this->life_list.push_back(0);

color.setHsb(ofRandom(255), 180, 255);

this->color_list.push_back(color);

}

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

if (abs(this->location_list[i].x) > 460 || abs(this->location_list[i].y) > 460) {

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

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

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

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

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

auto deg = ofMap(ofNoise(this->location_list[i].x * 0.0035, this->location_list[i].y * 0.0035, ofGetFrameNum() * 0.005), 0, 1, -360, 360);

auto next = this->location_list[i] + glm::vec2(5 * cos(deg * DEG_TO_RAD), 5 * sin(deg * DEG_TO_RAD));

auto size = this->life_list[i] < 10 ? ofMap(this->life_list[i], 0, 10, 0, 19) : 20;

this->draw_arrow(this->location_list[i], next, size, this->color_list[i], ofColor(39));

this->location_list[i] = next;

this->life_list[i]++;

}

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

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

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

ofSetColor(fill_color);

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(no_fill_color);

ofNoFill();

ofSetLineWidth(3);

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/Insta20230710

2023年7月9日2023年7月9日

Eyesight test. Draw by openFrameworks

[ Video ]

[ About ]
視力検査。

[ 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(30);
	ofSetWindowTitle("openFrameworks");

	ofBackground(39);
	ofSetColor(239);
	
	ofSetLineWidth(3);
	ofNoFill();
}
//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	int span = 60;
	for (int x = -300; x <= 300; x += span) {

		for (int y = -300; y <= 300; y += span) {

			ofPushMatrix();
			ofTranslate(x, y);

			int deg = ofMap(ofNoise(x * 0.0005, y * 0.0005, ofGetFrameNum() * 0.001), 0, 1, 0, 360 * 3);
			int deg_param = deg % 45;
			deg = deg / 45 * 45;
			if (deg_param > 40) {

				deg += ofMap(deg_param, 40, 45, 0, 45);
			}
			ofRotate(deg);

			ofBeginShape();
			for(int circle_deg = 20; circle_deg <= 360 - 20; circle_deg += 1) {
			
				ofVertex(span * 0.35 * cos(circle_deg * DEG_TO_RAD), span * 0.35 * sin(circle_deg * DEG_TO_RAD));
			}
			ofEndShape();

			ofPopMatrix();
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofSetColor(239);

ofSetLineWidth(3);

ofNoFill();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

int span = 60;

for (int x = -300; x <= 300; x += span) {

for (int y = -300; y <= 300; y += span) {

ofPushMatrix();

ofTranslate(x, y);

int deg = ofMap(ofNoise(x * 0.0005, y * 0.0005, ofGetFrameNum() * 0.001), 0, 1, 0, 360 * 3);

int deg_param = deg % 45;

deg = deg / 45 * 45;

if (deg_param > 40) {

deg += ofMap(deg_param, 40, 45, 0, 45);

}

ofRotate(deg);

ofBeginShape();

for(int circle_deg = 20; circle_deg <= 360 - 20; circle_deg += 1) {

ofVertex(span * 0.35 * cos(circle_deg * DEG_TO_RAD), span * 0.35 * sin(circle_deg * DEG_TO_RAD));

}

ofEndShape();

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230709

2023年7月8日

Big sphere – small sphere. Draw by openFrameworks

[ Video ]

[ About ]
大きい球体 – 小さい球体。

[ 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(30);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofSetColor(39);
	ofSetLineWidth(1.5);
}
//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	auto radius = 240;
	int deg_span = 4;
	auto len = 120;

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

		ofPushMatrix();
		ofRotate(deg);
		ofTranslate(radius * cos(0 * DEG_TO_RAD), radius * sin(0 * DEG_TO_RAD));

		auto noise_deg = ofMap(ofNoise(cos(deg * DEG_TO_RAD) * 0.5, sin(deg * DEG_TO_RAD) * 0.5, ofGetFrameNum() * 0.008), 0, 1, -540, 540);
		ofRotateY(noise_deg);

		auto location_1 = glm::vec3((len * 0.5) * cos(0 * DEG_TO_RAD), (len * 0.5) * sin(0 * DEG_TO_RAD), 0);
		auto location_2 = glm::vec3((len * -0.5) * cos(0 * DEG_TO_RAD), (len * -0.5) * sin(0 * DEG_TO_RAD), 0);

		ofDrawLine(location_1, location_2);
		ofDrawSphere(location_1, 3);
		ofDrawSphere(location_2, 6);

		ofPopMatrix();
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(39);

ofSetLineWidth(1.5);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

auto radius = 240;

int deg_span = 4;

auto len = 120;

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

ofPushMatrix();

ofRotate(deg);

ofTranslate(radius * cos(0 * DEG_TO_RAD), radius * sin(0 * DEG_TO_RAD));

auto noise_deg = ofMap(ofNoise(cos(deg * DEG_TO_RAD) * 0.5, sin(deg * DEG_TO_RAD) * 0.5, ofGetFrameNum() * 0.008), 0, 1, -540, 540);

ofRotateY(noise_deg);

auto location_1 = glm::vec3((len * 0.5) * cos(0 * DEG_TO_RAD), (len * 0.5) * sin(0 * DEG_TO_RAD), 0);

auto location_2 = glm::vec3((len * -0.5) * cos(0 * DEG_TO_RAD), (len * -0.5) * sin(0 * DEG_TO_RAD), 0);

ofDrawLine(location_1, location_2);

ofDrawSphere(location_1, 3);

ofDrawSphere(location_2, 6);

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230708

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