openFrameworks – ページ 113 – プログラミング de 落描き

2023年6月16日

Observe the random walkers. Draw by openFrameworks

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ランダムウォーカーを観察する。

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#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) {};
};

#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) {};

};

#include "ofApp.h"

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

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

	ofBackground(39);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
	ofSetLineWidth(1.5);
}

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

	ofSeedRandom(39);
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	auto radius = 10;
	auto number = 9;
	auto len = 30;
	for (int i = 0; i < number; i++) {

		auto x_min = 240 * (i % 3) - 360;
		auto x_max = 240 * (i % 3) - 120;

		auto y_min = 240 * (i / 3) - 360;
		auto y_max = 240 * (i / 3) - 120;

		auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));
		for (int k = 0; k < len; k++) {

			auto location = glm::vec2(
				ofMap(ofNoise(noise_seed.x * 0.03, ofGetFrameNum() * 0.02 + k * 0.02), 0, 1, x_min + 10, x_max - 10),
				ofMap(ofNoise(noise_seed.y * 0.03, ofGetFrameNum() * 0.02 + k * 0.02), 0, 1, y_min + 10, y_max - 10));
			auto next_location = glm::vec2(
				ofMap(ofNoise(noise_seed.x * 0.03, ofGetFrameNum() * 0.02 + k * 0.02 + 0.002), 0, 1, x_min + 10 , x_max - 10),
				ofMap(ofNoise(noise_seed.y * 0.03, ofGetFrameNum() * 0.02 + k * 0.02 + 0.002), 0, 1, y_min + 10, y_max - 10));

			auto deg = atan2(next_location.y - location.y, next_location.x - location.x) * RAD_TO_DEG;

			ofPushMatrix();
			ofTranslate(location);
			ofRotate(deg);

			ofColor color;
			color.setHsb(ofMap(i, 0, number, 0, 255), 180, 255);
			ofSetColor(color, ofMap(k, 0, len, 32, 255));
			ofNoFill();

			ofBeginShape();
			for (int d = -120; d <= 120; d += 120) {

				ofVertex(radius * cos(d * DEG_TO_RAD), radius * sin(d * DEG_TO_RAD));
			}
			ofEndShape(false);

			ofPopMatrix();

		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

ofSetLineWidth(1.5);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

auto radius = 10;

auto number = 9;

auto len = 30;

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

auto x_min = 240 * (i % 3) - 360;

auto x_max = 240 * (i % 3) - 120;

auto y_min = 240 * (i / 3) - 360;

auto y_max = 240 * (i / 3) - 120;

auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));

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

auto location = glm::vec2(

ofMap(ofNoise(noise_seed.x * 0.03, ofGetFrameNum() * 0.02 + k * 0.02), 0, 1, x_min + 10, x_max - 10),

ofMap(ofNoise(noise_seed.y * 0.03, ofGetFrameNum() * 0.02 + k * 0.02), 0, 1, y_min + 10, y_max - 10));

auto next_location = glm::vec2(

ofMap(ofNoise(noise_seed.x * 0.03, ofGetFrameNum() * 0.02 + k * 0.02 + 0.002), 0, 1, x_min + 10 , x_max - 10),

ofMap(ofNoise(noise_seed.y * 0.03, ofGetFrameNum() * 0.02 + k * 0.02 + 0.002), 0, 1, y_min + 10, y_max - 10));

auto deg = atan2(next_location.y - location.y, next_location.x - location.x) * RAD_TO_DEG;

ofPushMatrix();

ofTranslate(location);

ofRotate(deg);

ofColor color;

color.setHsb(ofMap(i, 0, number, 0, 255), 180, 255);

ofSetColor(color, ofMap(k, 0, len, 32, 255));

ofNoFill();

ofBeginShape();

for (int d = -120; d <= 120; d += 120) {

ofVertex(radius * cos(d * DEG_TO_RAD), radius * sin(d * DEG_TO_RAD));

}

ofEndShape(false);

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230616

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2023年6月15日

Ramdom rail. Draw by openFrameworks

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[ About ]
ランダム・レール。

[ 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) {};
};

#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) {};

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(2);
}

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

	ofSeedRandom(39);
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	auto len = 50;
	for (int i = 0; i < 1; i++) {

		auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));
		for (int k = 0; k < 30; k++) {

			auto location = glm::vec2(
				ofMap(ofNoise(noise_seed.x * 0.03, ofGetFrameNum() * 0.02 + k * 0.02), 0, 1, -320, 320),
				ofMap(ofNoise(noise_seed.y * 0.03, ofGetFrameNum() * 0.02 + k * 0.02), 0, 1, -320, 320));
			auto next_location = glm::vec2(
				ofMap(ofNoise(noise_seed.x * 0.03, ofGetFrameNum() * 0.02 + k * 0.02 + 0.002), 0, 1, -320, 320),
				ofMap(ofNoise(noise_seed.y * 0.03, ofGetFrameNum() * 0.02 + k * 0.02 + 0.002), 0, 1, -320, 320));

			auto deg = atan2(next_location.y - location.y, next_location.x - location.x) * RAD_TO_DEG;

			ofPushMatrix();
			ofTranslate(location);

			auto location_1 = glm::vec2(len * cos((deg + 90) * DEG_TO_RAD), len * sin((deg + 90) * DEG_TO_RAD));
			auto location_2 = glm::vec2(len * cos((deg - 90) * DEG_TO_RAD), len * sin((deg - 90) * DEG_TO_RAD));

			ofSetColor(0, ofMap(k, 0, 30, 32, 255));

			ofDrawLine(location_1, location_2);
			ofDrawCircle(location_1, 3);
			ofDrawCircle(location_2, 3);

			ofPopMatrix();

		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetLineWidth(2);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

auto len = 50;

for (int i = 0; i < 1; i++) {

auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));

for (int k = 0; k < 30; k++) {

auto location = glm::vec2(

ofMap(ofNoise(noise_seed.x * 0.03, ofGetFrameNum() * 0.02 + k * 0.02), 0, 1, -320, 320),

ofMap(ofNoise(noise_seed.y * 0.03, ofGetFrameNum() * 0.02 + k * 0.02), 0, 1, -320, 320));

auto next_location = glm::vec2(

ofMap(ofNoise(noise_seed.x * 0.03, ofGetFrameNum() * 0.02 + k * 0.02 + 0.002), 0, 1, -320, 320),

ofMap(ofNoise(noise_seed.y * 0.03, ofGetFrameNum() * 0.02 + k * 0.02 + 0.002), 0, 1, -320, 320));

auto deg = atan2(next_location.y - location.y, next_location.x - location.x) * RAD_TO_DEG;

ofPushMatrix();

ofTranslate(location);

auto location_1 = glm::vec2(len * cos((deg + 90) * DEG_TO_RAD), len * sin((deg + 90) * DEG_TO_RAD));

auto location_2 = glm::vec2(len * cos((deg - 90) * DEG_TO_RAD), len * sin((deg - 90) * DEG_TO_RAD));

ofSetColor(0, ofMap(k, 0, 30, 32, 255));

ofDrawLine(location_1, location_2);

ofDrawCircle(location_1, 3);

ofDrawCircle(location_2, 3);

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230615

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2023年6月14日

Gaming Arrows. Draw by openFrameworks

[ Video ]

[ About ]
ゲーミング矢印。

[ 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 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) {};

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

#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) {};

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

};

#include "ofApp.h"

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

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

	ofBackground(39);
}

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

}

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

	float size = 30;
	ofColor color;
	for (float x = size * 0.5; x <= ofGetWindowWidth() - size * 0.5; x += size) {

		for (float y = size * 0.5; y <= ofGetWindowHeight() - size * 0.5; y += size) {

			int deg = ofMap(ofNoise(x * 0.003, y * 0.003 + ofGetFrameNum() * 0.02), 0, 1, 0, 360);
			int hue = ofMap(deg, 0, 360, 100, 255);
			color.setHsb(hue, 180, 255);

			this->draw_arrow(glm::vec2(x, y), glm::vec2(x + cos(deg * DEG_TO_RAD), y + sin(deg * DEG_TO_RAD)), size * 0.5, ofColor(0), color);
		}
	}
}

//--------------------------------------------------------------
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(1);
	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(30);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

float size = 30;

ofColor color;

for (float x = size * 0.5; x <= ofGetWindowWidth() - size * 0.5; x += size) {

for (float y = size * 0.5; y <= ofGetWindowHeight() - size * 0.5; y += size) {

int deg = ofMap(ofNoise(x * 0.003, y * 0.003 + ofGetFrameNum() * 0.02), 0, 1, 0, 360);

int hue = ofMap(deg, 0, 360, 100, 255);

color.setHsb(hue, 180, 255);

this->draw_arrow(glm::vec2(x, y), glm::vec2(x + cos(deg * DEG_TO_RAD), y + sin(deg * DEG_TO_RAD)), size * 0.5, ofColor(0), color);

}

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

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(1);

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/Insta20230614

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2024年5月
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