junkiyoshi – ページ 138 – プログラミング de 落描き

2023年3月11日2023年3月11日

Connect small circle to big circle. Draw by openFrameworks

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[ About ]
小さな円と大きな円をつなぐ線。

[ 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(0);
	ofSetLineWidth(1);

	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
}

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

	ofSeedRandom(39);
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	bool flag = true;
	auto x = 0;

	for (int deg = 0; deg < 360; deg += 1) {

		ofPushMatrix();
		ofRotate(deg);

		auto base_location = glm::vec2(x, -100);
		auto target_location = glm::vec2(x, -300);
		auto distance = target_location - base_location;
		auto len = glm::length(distance);
		auto noise_seed = ofRandom(1000);

		vector<glm::vec2> vertices;
		for (int d = 0; d <= len; d++) {

			auto location = base_location + glm::normalize(distance) * d;

			auto gap = abs(len * 0.5 - d);
			auto power = gap < len * 0.35 ? 1 : ofMap(gap, len * 0.35, len * 0.5, 1, 0);

			auto noise_x = ofMap(ofNoise(noise_seed, location.x * 0.05, location.y * 0.015 + ofGetFrameNum() * 0.005), 0, 1, -30, 30);
			location += glm::vec2(noise_x * power, 0);

			vertices.push_back(location);
		}

		ofSetColor(192);

		ofNoFill();
		ofBeginShape();
		ofVertices(vertices);
		ofEndShape();

		ofSetColor(255);

		ofFill();
		ofDrawCircle(vertices.front(), 2);
		ofDrawCircle(vertices.back(), 2);

		ofPopMatrix();
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofSetLineWidth(1);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

bool flag = true;

auto x = 0;

for (int deg = 0; deg < 360; deg += 1) {

ofPushMatrix();

ofRotate(deg);

auto base_location = glm::vec2(x, -100);

auto target_location = glm::vec2(x, -300);

auto distance = target_location - base_location;

auto len = glm::length(distance);

auto noise_seed = ofRandom(1000);

vector<glm::vec2> vertices;

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

auto location = base_location + glm::normalize(distance) * d;

auto gap = abs(len * 0.5 - d);

auto power = gap < len * 0.35 ? 1 : ofMap(gap, len * 0.35, len * 0.5, 1, 0);

auto noise_x = ofMap(ofNoise(noise_seed, location.x * 0.05, location.y * 0.015 + ofGetFrameNum() * 0.005), 0, 1, -30, 30);

location += glm::vec2(noise_x * power, 0);

vertices.push_back(location);

}

ofSetColor(192);

ofNoFill();

ofBeginShape();

ofVertices(vertices);

ofEndShape();

ofSetColor(255);

ofFill();

ofDrawCircle(vertices.front(), 2);

ofDrawCircle(vertices.back(), 2);

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230311

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2023年3月10日2023年3月10日

noise string. Draw by openFrameworks

[ Video ]

[ About ]
ノイズ紐。

[ 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(0);
	ofSetLineWidth(2);
}

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

}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	bool flag = true;
	for (int x = -270; x <= 270; x += 180) {

		auto base_location = glm::vec2(x, 150);
		auto target_location = glm::vec2(x, -150);
		auto distance = target_location - base_location;
		auto len = glm::length(distance);

		vector<glm::vec2> vertices;
		for (int d = 0; d <= len; d++) {

			auto location = base_location + glm::normalize(distance) * d;

			auto gap = abs(len * 0.5 - d);
			auto power = gap < len * 0.35 ? 1 : ofMap(gap, len * 0.35, len * 0.5, 1, 0);

			if (flag) {

				auto noise_x = ofMap(ofNoise(location.x * 0.05, location.y * 0.015 + ofGetFrameNum() * 0.05), 0, 1, -50, 50);
				location += glm::vec2(noise_x * power, 0);
			}
			else {

				auto noise_x = ofMap(ofNoise(location.x * 0.05, location.y * 0.015 - ofGetFrameNum() * 0.05), 0, 1, -50, 50);
				location += glm::vec2(noise_x * power, 0);
			}

			vertices.push_back(location);
		}

		ofNoFill();
		ofBeginShape();
		ofVertices(vertices);
		ofEndShape();

		ofFill();
		ofDrawCircle(vertices.front(), 6);
		ofDrawCircle(vertices.back(), 6);

		flag = !flag;
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofSetLineWidth(2);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

bool flag = true;

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

auto base_location = glm::vec2(x, 150);

auto target_location = glm::vec2(x, -150);

auto distance = target_location - base_location;

auto len = glm::length(distance);

vector<glm::vec2> vertices;

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

auto location = base_location + glm::normalize(distance) * d;

auto gap = abs(len * 0.5 - d);

auto power = gap < len * 0.35 ? 1 : ofMap(gap, len * 0.35, len * 0.5, 1, 0);

if (flag) {

auto noise_x = ofMap(ofNoise(location.x * 0.05, location.y * 0.015 + ofGetFrameNum() * 0.05), 0, 1, -50, 50);

location += glm::vec2(noise_x * power, 0);

}

else {

auto noise_x = ofMap(ofNoise(location.x * 0.05, location.y * 0.015 - ofGetFrameNum() * 0.05), 0, 1, -50, 50);

location += glm::vec2(noise_x * power, 0);

}

vertices.push_back(location);

}

ofNoFill();

ofBeginShape();

ofVertices(vertices);

ofEndShape();

ofFill();

ofDrawCircle(vertices.front(), 6);

ofDrawCircle(vertices.back(), 6);

flag = !flag;

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230310

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2023年3月9日

Line and ripple. Draw by openFrameworks

[ Video ]

[ About ]
線と波紋。

[ 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;
	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) {};

vector<glm::vec2> location_list;

vector<float> radius_list;

vector<float> speed_list;

vector<float> max_radius_list;

vector<ofColor> color_list;

};

#include "ofApp.h"

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

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

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

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

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

		if (this->radius_list[i] > 0) {
		
			this->radius_list[i] += this->speed_list[i];
		}
		else {

			this->radius_list[i] += this->speed_list[i] * 20;
		}

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

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

		int random_deg = ofRandom(360);
		int random_radius = 250 + ofRandom(-20, 20);

		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(ofRandom(-600, -300));
		this->speed_list.push_back(ofRandom(0.1, 0.5));
		this->max_radius_list.push_back(ofRandom(15, 30));

		color.setHsb(ofMap(location.x, -270, 270, 0, 255), 255, 255);
		this->color_list.push_back(color);
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

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

		if (this->radius_list[i] > 0) {

			auto alpha = this->radius_list[i] < this->max_radius_list[i] * 0.8 ? 255 : ofMap(this->radius_list[i], this->max_radius_list[i] * 0.8, this->max_radius_list[i], 255, 64);
			ofSetColor(this->color_list[i], alpha);

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

			ofSetColor(this->color_list[i]);

			ofFill();
			ofDrawCircle(this->location_list[i], 2);
		}
		else {

			auto alpha = ofMap(this->radius_list[i], -600, 0, 64, 255);
			ofSetColor(this->color_list[i], alpha);

			ofNoFill();
			ofDrawLine(glm::vec3(this->location_list[i], this->radius_list[i]), glm::vec3(this->location_list[i], this->radius_list[i] - 20));
		}
	}
}

//--------------------------------------------------------------
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);

}

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

void ofApp::update() {

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

if (this->radius_list[i] > 0) {

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

}

else {

this->radius_list[i] += this->speed_list[i] * 20;

}

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);

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

}

ofColor color;

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

int random_deg = ofRandom(360);

int random_radius = 250 + ofRandom(-20, 20);

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(ofRandom(-600, -300));

this->speed_list.push_back(ofRandom(0.1, 0.5));

this->max_radius_list.push_back(ofRandom(15, 30));

color.setHsb(ofMap(location.x, -270, 270, 0, 255), 255, 255);

this->color_list.push_back(color);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

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

if (this->radius_list[i] > 0) {

auto alpha = this->radius_list[i] < this->max_radius_list[i] * 0.8 ? 255 : ofMap(this->radius_list[i], this->max_radius_list[i] * 0.8, this->max_radius_list[i], 255, 64);

ofSetColor(this->color_list[i], alpha);

ofNoFill();

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

ofSetColor(this->color_list[i]);

ofFill();

ofDrawCircle(this->location_list[i], 2);

}

else {

auto alpha = ofMap(this->radius_list[i], -600, 0, 64, 255);

ofSetColor(this->color_list[i], alpha);

ofNoFill();

ofDrawLine(glm::vec3(this->location_list[i], this->radius_list[i]), glm::vec3(this->location_list[i], this->radius_list[i] - 20));

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230309

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