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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