RandomWalk – ページ 32 – プログラミング de 落描き

2022年7月20日

Random walk + sin wave. Draw by openFrameworks

[ Video ]

[ About ]
ランダムウォーク + sin波.

Random walk + sin wave.

[ 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) {};

	ofEasyCam cam;
};

#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) {};

ofEasyCam cam;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofSetColor(255);
	ofNoFill();
	ofEnableDepthTest();
}

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

	ofSeedRandom(39);
}

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

	this->cam.begin();
	ofRotateX(ofMap(sin(ofGetFrameNum() * 2 * DEG_TO_RAD), -1, 1, 255, 285));

	ofDrawRectangle(-300, -300, 600, 600);

	for (int i = 0; i < 6; i++) {

		vector<glm::vec3> vertices;
		auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(360));
		for (int k = 0; k < 70; k++) {

			auto x = ofMap(ofNoise(noise_seed.x, k * 0.005 + ofGetFrameNum() * 0.005), 0, 1, -300, 300);
			auto y = ofMap(ofNoise(noise_seed.y, k * 0.005 + ofGetFrameNum() * 0.005), 0, 1, -300, 300);
			auto z = ofMap(sin(((int)noise_seed.z + k + ofGetFrameNum()) * 4 * DEG_TO_RAD), -1, 1, -100, 100);

			vertices.push_back(glm::vec3(x, y, z));

			if (z < 3 && z > -3) {

				ofDrawCircle(glm::vec3(x, y, 0), 10);
			}
		}

		ofBeginShape();
		ofVertices(vertices);
		ofEndShape(false);
	}

	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);

ofSetColor(255);

ofNoFill();

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(ofMap(sin(ofGetFrameNum() * 2 * DEG_TO_RAD), -1, 1, 255, 285));

ofDrawRectangle(-300, -300, 600, 600);

for (int i = 0; i < 6; i++) {

vector<glm::vec3> vertices;

auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(360));

for (int k = 0; k < 70; k++) {

auto x = ofMap(ofNoise(noise_seed.x, k * 0.005 + ofGetFrameNum() * 0.005), 0, 1, -300, 300);

auto y = ofMap(ofNoise(noise_seed.y, k * 0.005 + ofGetFrameNum() * 0.005), 0, 1, -300, 300);

auto z = ofMap(sin(((int)noise_seed.z + k + ofGetFrameNum()) * 4 * DEG_TO_RAD), -1, 1, -100, 100);

vertices.push_back(glm::vec3(x, y, z));

if (z < 3 && z > -3) {

ofDrawCircle(glm::vec3(x, y, 0), 10);

}

ofBeginShape();

ofVertices(vertices);

ofEndShape(false);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/openframeworks20220720

2022年7月18日2022年7月15日

Random walk points. Draw by openFrameworks

[ Video ]

[ About ]
ランダムウォークの点通しをつなぐ。

[ 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);
	ofSetColor(255);
	ofNoFill();
}

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

	ofSeedRandom(39);
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	ofMesh location_list;
	location_list.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
	for (int i = 0; i < 10; i++) {

		auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));
		ofMesh mesh;
		mesh.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
		for (int k = 0; k < 40; k++) {

			mesh.addVertex(glm::vec3(
				ofMap(ofNoise(noise_seed.x, k * 0.005 + ofGetFrameNum() * 0.005), 0, 1, -350, 350),
				ofMap(ofNoise(noise_seed.y, k * 0.005 + ofGetFrameNum() * 0.005), 0, 1, -350, 350),
				0));

			if (k > 0) {

				mesh.addIndex(k);
				mesh.addIndex(k - 1);
			}

			if (k % 10 == 0) {

				location_list.addVertex(mesh.getVertices().back());
			}
		}

		//mesh.drawWireframe();
	}

	for (int i = 0; i < location_list.getNumVertices(); i++) {

		ofNoFill();
		ofDrawCircle(location_list.getVertex(i), 5);

		for (int k = i + 1; k < location_list.getNumVertices(); k++) {

			auto distance = glm::distance(location_list.getVertex(i), location_list.getVertex(k));
			if (distance < 60) {

				location_list.addIndex(i);
				location_list.addIndex(k);

				ofFill();
				ofDrawCircle(location_list.getVertex(i), 2);
				ofDrawCircle(location_list.getVertex(k), 2);
			}
		}
	}

	location_list.drawWireframe();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofSetColor(255);

ofNoFill();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

ofMesh location_list;

location_list.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

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

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

ofMesh mesh;

mesh.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

for (int k = 0; k < 40; k++) {

mesh.addVertex(glm::vec3(

ofMap(ofNoise(noise_seed.x, k * 0.005 + ofGetFrameNum() * 0.005), 0, 1, -350, 350),

ofMap(ofNoise(noise_seed.y, k * 0.005 + ofGetFrameNum() * 0.005), 0, 1, -350, 350),

0));

if (k > 0) {

mesh.addIndex(k);

mesh.addIndex(k - 1);

}

if (k % 10 == 0) {

location_list.addVertex(mesh.getVertices().back());

}

//mesh.drawWireframe();

}

for (int i = 0; i < location_list.getNumVertices(); i++) {

ofNoFill();

ofDrawCircle(location_list.getVertex(i), 5);

for (int k = i + 1; k < location_list.getNumVertices(); k++) {

auto distance = glm::distance(location_list.getVertex(i), location_list.getVertex(k));

if (distance < 60) {

location_list.addIndex(i);

location_list.addIndex(k);

ofFill();

ofDrawCircle(location_list.getVertex(i), 2);

ofDrawCircle(location_list.getVertex(k), 2);

}

location_list.drawWireframe();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220718

2022年7月16日2022年7月14日

Connect point of torus. Draw by openFrameworks

[ Video ]

[ About ]
トーラスの中にある座標を結ぶ。

Connect point of torus.

[ 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) {};

	glm::vec3 make_point(float R, float r, float u, float v);

	ofEasyCam cam;

	ofMesh mesh;
};

#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) {};

glm::vec3 make_point(float R, float r, float u, float v);

ofEasyCam cam;

ofMesh mesh;

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openframeworks");

	ofBackground(0);
	ofEnableDepthTest();

	this->mesh.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
}

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

	ofSeedRandom(39);

	vector<glm::vec3> location_list;
	vector<float> min_distance_list;
	vector<vector<int>> pair_list;

	for (int i = 0; i < 2000; i++) {

		auto R = 300;
		auto r = ofRandom(30, 80);
		auto u = ofRandom(360) + ofGetFrameNum() * ofRandom(0.25, 1.0) * (ofRandom(1) < 1 ? 1 : -1);
		auto v = ofRandom(360) + ofGetFrameNum() * ofRandom(0.25, 1.0) * (ofRandom(1) < 1 ? 1 : -1);

		location_list.push_back(this->make_point(R, r, u, v));
		min_distance_list.push_back(20);
		vector<int> pair;
		pair_list.push_back(pair);
	}

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

		for (int k = 0; k < location_list.size(); k++) {

			if (i == k) { continue; }

			auto distance = glm::distance(location_list[i], location_list[k]);

			if (distance < 20) {

				pair_list[i].push_back(k);
				if (min_distance_list[i] > distance) {

					min_distance_list[i] = distance;
				}
			}
		}
	}

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

		this->mesh.addColor(ofColor(255, ofMap(min_distance_list[i], 0, 20, 255, 0)));
		for (int k = 0; k < pair_list[i].size(); k++) {

			this->mesh.addIndex(i);
			this->mesh.addIndex(pair_list[i][k]);
		}
	}
}

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

	this->cam.begin();
	
	this->mesh.drawWireframe();

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

		ofSetColor(this->mesh.getColor(i));
		ofDrawSphere(this->mesh.getVertex(i), 3);
	}
	
	this->cam.end();
}

//--------------------------------------------------------------
glm::vec3 ofApp::make_point(float R, float r, float u, float v) {

	// 数学デッサン教室 描いて楽しむ数学たち　P.31

	u *= DEG_TO_RAD;
	v *= DEG_TO_RAD;

	auto x = (R + r * cos(u)) * cos(v);
	auto y = (R + r * cos(u)) * sin(v);
	auto z = r * sin(u);

	return glm::vec3(x, y, z);
}

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

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

100

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofEnableDepthTest();

this->mesh.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

}

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

void ofApp::update() {

ofSeedRandom(39);

vector<glm::vec3> location_list;

vector<float> min_distance_list;

vector<vector<int>> pair_list;

for (int i = 0; i < 2000; i++) {

auto R = 300;

auto r = ofRandom(30, 80);

auto u = ofRandom(360) + ofGetFrameNum() * ofRandom(0.25, 1.0) * (ofRandom(1) < 1 ? 1 : -1);

auto v = ofRandom(360) + ofGetFrameNum() * ofRandom(0.25, 1.0) * (ofRandom(1) < 1 ? 1 : -1);

location_list.push_back(this->make_point(R, r, u, v));

min_distance_list.push_back(20);

vector<int> pair;

pair_list.push_back(pair);

}

this->mesh.clear();

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

for (int k = 0; k < location_list.size(); k++) {

if (i == k) { continue; }

auto distance = glm::distance(location_list[i], location_list[k]);

if (distance < 20) {

pair_list[i].push_back(k);

if (min_distance_list[i] > distance) {

min_distance_list[i] = distance;

}

this->mesh.addVertices(location_list);

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

this->mesh.addColor(ofColor(255, ofMap(min_distance_list[i], 0, 20, 255, 0)));

for (int k = 0; k < pair_list[i].size(); k++) {

this->mesh.addIndex(i);

this->mesh.addIndex(pair_list[i][k]);

}

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

void ofApp::draw() {

this->cam.begin();

this->mesh.drawWireframe();

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

ofSetColor(this->mesh.getColor(i));

ofDrawSphere(this->mesh.getVertex(i), 3);

}

this->cam.end();

}

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

glm::vec3 ofApp::make_point(float R, float r, float u, float v) {

// 数学デッサン教室描いて楽しむ数学たち　P.31

u *= DEG_TO_RAD;

v *= DEG_TO_RAD;

auto x = (R + r * cos(u)) * cos(v);

auto y = (R + r * cos(u)) * sin(v);

auto z = r * sin(u);

return glm::vec3(x, y, z);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220716

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