circle – ページ 42 – プログラミング de 落描き

2022年2月7日2022年2月7日

Circle <-> Rect. Draw by openFrameworks

[ Video ]

[ About ]
円と正方形を行ったり来たり。

Back and forth between circles and squares.

[ 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) {};

	glm::vec2 make_point(int len, int param);

	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 windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

glm::vec2 make_point(int len, int param);

ofEasyCam cam;

};

#include "ofApp.h"

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

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

	ofBackground(255);
	ofSetLineWidth(2);
	ofEnableDepthTest();
}

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

}

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

	this->cam.begin();

	int len = 120;
	int width = len * 0.15;

	for (int x = -len * 5; x <= len * 5; x += len) {

		for (int y = -len * 5; y <= len * 5; y += len) {

			ofPushMatrix();
			ofTranslate(x, y, 0);

			ofMesh frame;
			frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
			for (int param = 0; param <= 100; param++) {

				int deg = param * 3.6 - 135;
				auto noise_value = ofNoise(x * 0.035 + cos(deg * DEG_TO_RAD) * 0.15, y * 0.035 + sin(deg * DEG_TO_RAD) * 0.15, ofGetFrameNum() * 0.015);

				vector<glm::vec3> vertices;
				if (noise_value > 0.5) {

					vertices.push_back(glm::vec3(this->make_point(len, param), width * 0.5));
					vertices.push_back(glm::vec3(this->make_point(len, param),  width * 0.5));
				}
				else {

					vertices.push_back(glm::vec3(len * 0.4 * cos(deg * DEG_TO_RAD), len * 0.4 * sin(deg * DEG_TO_RAD), width * 0.5));
					vertices.push_back(glm::vec3(len * 0.4 * cos(deg * DEG_TO_RAD), len * 0.4 * sin(deg * DEG_TO_RAD), width * 0.5));
				}

				frame.addVertices(vertices);

				int index = frame.getNumVertices() - 1;
				if (param > 0) {

					frame.addIndex(index); frame.addIndex(index - 2);
					frame.addIndex(index - 1); frame.addIndex(index - 3);
				}
			}

			ofSetColor(0);
			frame.drawWireframe();

			ofPopMatrix();
		}
	}

	this->cam.end();
}

//--------------------------------------------------------------
glm::vec2 ofApp::make_point(int len, int param) {

	param = param % 100;
	if (param < 25) {

		return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);
	}
	else if (param < 50) {

		return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));
	}
	else if (param < 75) {

		return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);
	}
	else {

		return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));
	}
}

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

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

100

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(255);

ofSetLineWidth(2);

ofEnableDepthTest();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

int len = 120;

int width = len * 0.15;

for (int x = -len * 5; x <= len * 5; x += len) {

for (int y = -len * 5; y <= len * 5; y += len) {

ofPushMatrix();

ofTranslate(x, y, 0);

ofMesh frame;

frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

for (int param = 0; param <= 100; param++) {

int deg = param * 3.6 - 135;

auto noise_value = ofNoise(x * 0.035 + cos(deg * DEG_TO_RAD) * 0.15, y * 0.035 + sin(deg * DEG_TO_RAD) * 0.15, ofGetFrameNum() * 0.015);

vector<glm::vec3> vertices;

if (noise_value > 0.5) {

vertices.push_back(glm::vec3(this->make_point(len, param), width * 0.5));

}

else {

vertices.push_back(glm::vec3(len * 0.4 * cos(deg * DEG_TO_RAD), len * 0.4 * sin(deg * DEG_TO_RAD), width * 0.5));

}

frame.addVertices(vertices);

int index = frame.getNumVertices() - 1;

if (param > 0) {

frame.addIndex(index); frame.addIndex(index - 2);

frame.addIndex(index - 1); frame.addIndex(index - 3);

}

ofSetColor(0);

frame.drawWireframe();

ofPopMatrix();

}

this->cam.end();

}

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

glm::vec2 ofApp::make_point(int len, int param) {

param = param % 100;

if (param < 25) {

return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);

}

else if (param < 50) {

return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));

}

else if (param < 75) {

return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);

}

else {

return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220207

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2022年1月25日2022年1月25日

Torsion circle. Draw by openFrameworks

[ Video ]

[ About ]

#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) {};

	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) {};

ofMesh mesh;

};

#include "ofApp.h"

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

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

	ofBackground(255);
	ofSetColor(0);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_MULTIPLY);
}

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

	ofSeedRandom(39);

	this->mesh.clear();

	int deg_span = 12;
	int loc_span = 230;

	for (int x = -loc_span; x <= loc_span; x += loc_span) {

		for (int y = -loc_span; y <= loc_span; y += loc_span) {

			for (int deg = 0; deg < 360; deg += deg_span * 2) {

				for (int radius = 50; radius <= 100; radius += 50) {

					if (radius == 50) {

						auto noise_deg = ofMap(ofNoise(ofGetFrameNum() * 0.0075), 0, 1, deg - 1440, deg + 1440);

						this->mesh.addVertex(glm::vec3(x + radius * cos((noise_deg + deg_span * 0.5) * DEG_TO_RAD), y + radius * sin((noise_deg + deg_span * 0.5) * DEG_TO_RAD), 0));
						this->mesh.addVertex(glm::vec3(x + radius * cos((noise_deg - deg_span * 0.5) * DEG_TO_RAD), y + radius * sin((noise_deg - deg_span * 0.5) * DEG_TO_RAD), 0));

					}
					else {

						this->mesh.addVertex(glm::vec3(x + radius * cos((deg + deg_span * 0.5) * DEG_TO_RAD), y + radius * sin((deg + deg_span * 0.5) * DEG_TO_RAD), 0));
						this->mesh.addVertex(glm::vec3(x + radius * cos((deg - deg_span * 0.5) * DEG_TO_RAD), y + radius * sin((deg - deg_span * 0.5) * DEG_TO_RAD), 0));

						this->mesh.addIndex(this->mesh.getNumVertices() - 1); this->mesh.addIndex(this->mesh.getNumVertices() - 3); this->mesh.addIndex(this->mesh.getNumVertices() - 4);
						this->mesh.addIndex(this->mesh.getNumVertices() - 1); this->mesh.addIndex(this->mesh.getNumVertices() - 2); this->mesh.addIndex(this->mesh.getNumVertices() - 4);
					}
				}
			}
		}
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	this->mesh.draw();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(255);

ofSetColor(0);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_MULTIPLY);

}

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

void ofApp::update() {

ofSeedRandom(39);

this->mesh.clear();

int deg_span = 12;

int loc_span = 230;

for (int x = -loc_span; x <= loc_span; x += loc_span) {

for (int y = -loc_span; y <= loc_span; y += loc_span) {

for (int deg = 0; deg < 360; deg += deg_span * 2) {

for (int radius = 50; radius <= 100; radius += 50) {

if (radius == 50) {

auto noise_deg = ofMap(ofNoise(ofGetFrameNum() * 0.0075), 0, 1, deg - 1440, deg + 1440);

this->mesh.addVertex(glm::vec3(x + radius * cos((noise_deg + deg_span * 0.5) * DEG_TO_RAD), y + radius * sin((noise_deg + deg_span * 0.5) * DEG_TO_RAD), 0));

this->mesh.addVertex(glm::vec3(x + radius * cos((noise_deg - deg_span * 0.5) * DEG_TO_RAD), y + radius * sin((noise_deg - deg_span * 0.5) * DEG_TO_RAD), 0));

}

else {

this->mesh.addVertex(glm::vec3(x + radius * cos((deg + deg_span * 0.5) * DEG_TO_RAD), y + radius * sin((deg + deg_span * 0.5) * DEG_TO_RAD), 0));

this->mesh.addVertex(glm::vec3(x + radius * cos((deg - deg_span * 0.5) * DEG_TO_RAD), y + radius * sin((deg - deg_span * 0.5) * DEG_TO_RAD), 0));

this->mesh.addIndex(this->mesh.getNumVertices() - 1); this->mesh.addIndex(this->mesh.getNumVertices() - 3); this->mesh.addIndex(this->mesh.getNumVertices() - 4);

this->mesh.addIndex(this->mesh.getNumVertices() - 1); this->mesh.addIndex(this->mesh.getNumVertices() - 2); this->mesh.addIndex(this->mesh.getNumVertices() - 4);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

this->mesh.draw();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Source ]
https://github.com/junkiyoshi/Insta20220125

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2022年1月23日

One-third circles. Draw by openFrameorks

[ Video ]

[ About ]
1/3サークルをたくさん書く。

Write a lot of 1/3 circles.

[ 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) {};

	ofMesh face, frame;
};

#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) {};

ofMesh face, frame;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofSetLineWidth(0.5);

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

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

	this->face.clear();
	this->frame.clear();

	float deg_span = 2;
	float len = 3;

	bool flag = true;
	int deg_len = 120;

	for (int radius = 20; radius < 720; radius += len) {

		int deg_start = ofMap(ofNoise(radius % 20, ofGetFrameNum() * 0.0035), 0, 1, -360, 360);
		if (flag) {

			deg_start += 180;
		}
		flag = !flag;

		for (float deg = deg_start; deg <= deg_start + deg_len; deg += 1) {

			vector<glm::vec3> vertices;
			vertices.push_back(glm::vec3((radius + len * 0.5) * cos((deg + deg_span * 0.5) * DEG_TO_RAD), (radius + len * 0.5) * sin((deg + deg_span * 0.5) * DEG_TO_RAD), 0));
			vertices.push_back(glm::vec3((radius - len * 0.5) * cos((deg + deg_span * 0.5) * DEG_TO_RAD), (radius - len * 0.5) * sin((deg + deg_span * 0.5) * DEG_TO_RAD), 0));
			vertices.push_back(glm::vec3((radius - len * 0.5) * cos((deg - deg_span * 0.5) * DEG_TO_RAD), (radius - len * 0.5) * sin((deg - deg_span * 0.5) * DEG_TO_RAD), 0));
			vertices.push_back(glm::vec3((radius + len * 0.5) * cos((deg - deg_span * 0.5) * DEG_TO_RAD), (radius + len * 0.5) * sin((deg - deg_span * 0.5) * DEG_TO_RAD), 0));

			this->face.addVertices(vertices);
			this->frame.addVertices(vertices);

			this->face.addTriangle(this->face.getNumVertices() - 1, this->face.getNumVertices() - 2, this->face.getNumVertices() - 3);
			this->face.addTriangle(this->face.getNumVertices() - 1, this->face.getNumVertices() - 3, this->face.getNumVertices() - 4);
			
			this->frame.addIndex(this->frame.getNumVertices() - 1); this->frame.addIndex(this->frame.getNumVertices() - 4);
			this->frame.addIndex(this->frame.getNumVertices() - 2); this->frame.addIndex(this->frame.getNumVertices() - 3);

			if (deg == deg_start) {

				this->frame.addIndex(this->frame.getNumVertices() - 1); this->frame.addIndex(this->frame.getNumVertices() - 2);
			}
			else if(deg == deg_start + deg_len) {

				this->frame.addIndex(this->frame.getNumVertices() - 3); this->frame.addIndex(this->frame.getNumVertices() - 4);
			}
		}
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	ofSetColor(255);
	this->face.draw();

	ofSetColor(0);
	this->frame.draw();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofSetLineWidth(0.5);

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

}

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

void ofApp::update() {

this->face.clear();

this->frame.clear();

float deg_span = 2;

float len = 3;

bool flag = true;

int deg_len = 120;

for (int radius = 20; radius < 720; radius += len) {

int deg_start = ofMap(ofNoise(radius % 20, ofGetFrameNum() * 0.0035), 0, 1, -360, 360);

if (flag) {

deg_start += 180;

}

flag = !flag;

for (float deg = deg_start; deg <= deg_start + deg_len; deg += 1) {

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3((radius + len * 0.5) * cos((deg + deg_span * 0.5) * DEG_TO_RAD), (radius + len * 0.5) * sin((deg + deg_span * 0.5) * DEG_TO_RAD), 0));

vertices.push_back(glm::vec3((radius - len * 0.5) * cos((deg + deg_span * 0.5) * DEG_TO_RAD), (radius - len * 0.5) * sin((deg + deg_span * 0.5) * DEG_TO_RAD), 0));

vertices.push_back(glm::vec3((radius - len * 0.5) * cos((deg - deg_span * 0.5) * DEG_TO_RAD), (radius - len * 0.5) * sin((deg - deg_span * 0.5) * DEG_TO_RAD), 0));

vertices.push_back(glm::vec3((radius + len * 0.5) * cos((deg - deg_span * 0.5) * DEG_TO_RAD), (radius + len * 0.5) * sin((deg - deg_span * 0.5) * DEG_TO_RAD), 0));

this->face.addVertices(vertices);

this->frame.addVertices(vertices);

this->face.addTriangle(this->face.getNumVertices() - 1, this->face.getNumVertices() - 2, this->face.getNumVertices() - 3);

this->face.addTriangle(this->face.getNumVertices() - 1, this->face.getNumVertices() - 3, this->face.getNumVertices() - 4);

this->frame.addIndex(this->frame.getNumVertices() - 1); this->frame.addIndex(this->frame.getNumVertices() - 4);

this->frame.addIndex(this->frame.getNumVertices() - 2); this->frame.addIndex(this->frame.getNumVertices() - 3);

if (deg == deg_start) {

this->frame.addIndex(this->frame.getNumVertices() - 1); this->frame.addIndex(this->frame.getNumVertices() - 2);

}

else if(deg == deg_start + deg_len) {

this->frame.addIndex(this->frame.getNumVertices() - 3); this->frame.addIndex(this->frame.getNumVertices() - 4);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

ofSetColor(255);

this->face.draw();

ofSetColor(0);

this->frame.draw();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220123

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