2023年6月 – ページ 2 – プログラミング de 落描き

2023年6月27日

Character pool. Draw by openFrameworks

[ Video ]

[ About ]
文字の生け簀。

[ 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) {};

	ofTrueTypeFont font;
	string word;
};

#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) {};

ofTrueTypeFont font;

string word;

};

#include "ofApp.h"	

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

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

	ofBackground(39);
	ofSetLineWidth(3);

	this->font.loadFont("fonts/Kazesawa-Bold.ttf", 50, true, true, true);
	//this->word = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
	this->word = "0123456789";
}

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


}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	ofColor color;
	ofSeedRandom(39);
	for (int i = 0; i < 600; i++) {

		auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));
		auto location = glm::vec2(
			ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.0025), 0, 1, -600, 600),
			ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.0025), 0, 1, -600, 600));
		auto next = glm::vec2(
			ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + 1) * 0.0025), 0, 1, -600, 600),
			ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + 1) * 0.0025), 0, 1, -600, 600));
		auto angle = std::atan2(next.y - location.y, next.x - location.x);


		ofPushMatrix();
		ofTranslate(location);
		ofRotate(angle * RAD_TO_DEG + 90);

		ofPath chara_path = this->font.getCharacterAsPoints(this->word[(int)ofRandom(this->word.size())], true, false);
		vector<ofPolyline> outline = chara_path.getOutline();

		ofFill();
		ofSetColor(ofMap(i, 0, 600, 39, 239));
		ofBeginShape();
		for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

			ofNextContour(true);

			auto vertices = outline[outline_index].getVertices();
			for (auto& vertex : vertices) {

				ofVertex(vertex);
			}
		}
		ofEndShape(true);

		ofPopMatrix();
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofSetLineWidth(3);

this->font.loadFont("fonts/Kazesawa-Bold.ttf", 50, true, true, true);

//this->word = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";

this->word = "0123456789";

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

ofColor color;

ofSeedRandom(39);

for (int i = 0; i < 600; i++) {

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

auto location = glm::vec2(

ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.0025), 0, 1, -600, 600),

ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.0025), 0, 1, -600, 600));

auto next = glm::vec2(

ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + 1) * 0.0025), 0, 1, -600, 600),

ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + 1) * 0.0025), 0, 1, -600, 600));

auto angle = std::atan2(next.y - location.y, next.x - location.x);

ofPushMatrix();

ofTranslate(location);

ofRotate(angle * RAD_TO_DEG + 90);

ofPath chara_path = this->font.getCharacterAsPoints(this->word[(int)ofRandom(this->word.size())], true, false);

vector<ofPolyline> outline = chara_path.getOutline();

ofFill();

ofSetColor(ofMap(i, 0, 600, 39, 239));

ofBeginShape();

for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

ofNextContour(true);

auto vertices = outline[outline_index].getVertices();

for (auto& vertex : vertices) {

ofVertex(vertex);

}

ofEndShape(true);

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230627

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2023年6月26日

Gnaw at a sphere. Draw by openFrameworks

[ Video ]

[ About ]
球体をかじる。

[ 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) {};

	ofEasyCam cam;
	ofMesh mesh, frame;

	vector<ofMeshFace> triangle_list;
	vector<glm::vec3> random_walk;
};

#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) {};

ofEasyCam cam;

ofMesh mesh, frame;

vector<ofMeshFace> triangle_list;

vector<glm::vec3> random_walk;

};

#include "ofApp.h"

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

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

	ofBackground(39);
	ofSetColor(255);
	ofNoFill();
	ofEnableDepthTest();

	auto ico_sphere = ofIcoSpherePrimitive(300, 4);
	this->triangle_list.insert(this->triangle_list.end(), ico_sphere.getMesh().getUniqueFaces().begin(), ico_sphere.getMesh().getUniqueFaces().end());

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

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

	ofSeedRandom(39);

	this->mesh.clear();
	this->frame.clear();
	this->random_walk.clear();
	
	auto radius = 250;
	
	glm::vec3 noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));
	for (int i = 0; i < 150; i++) {

		auto location = glm::vec3(
			ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.06 + i * 0.03), 0, 1, -radius * 1.2, radius * 1.2),
			ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.06 + i * 0.03), 0, 1, -radius * 1.2, radius * 1.2),
			ofMap(ofNoise(noise_seed.z, ofGetFrameNum() * 0.06 + i * 0.03), 0, 1, -radius * 1.2, radius * 1.2));
		this->random_walk.push_back(location);
	}

	for (int k = 0; k < this->triangle_list.size(); k++) {

		glm::vec3 avg = (this->triangle_list[k].getVertex(0) + this->triangle_list[k].getVertex(1) + this->triangle_list[k].getVertex(2)) / 3;
		
		bool flag = true;
		for (auto& location : this->random_walk) {

			if (glm::distance(avg, location) < 80) {

				if (glm::length(location) < radius + 20 && glm::length(location) > radius - 20) {

					flag = false;
					continue;
				}
			}
		}

		if (flag == false) { continue; }

		vector<glm::vec3> vertices;
		vertices.push_back(glm::normalize(this->triangle_list[k].getVertex(0)) * radius);
		vertices.push_back(glm::normalize(this->triangle_list[k].getVertex(1)) * radius);
		vertices.push_back(glm::normalize(this->triangle_list[k].getVertex(2)) * radius);

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

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

			auto alpha = radius < 250 ? 255 : ofMap(radius, 250, 320, 255, 0);

			this->mesh.addColor(ofColor(0, alpha));
			this->frame.addColor(ofColor(255, 255, 255, alpha));
		}

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

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

	
}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum());

	ofSetLineWidth(0.5);
	this->mesh.draw();
	this->frame.drawWireframe();

	ofSetColor(255);
	ofSetLineWidth(3);
	ofBeginShape();
	ofVertices(this->random_walk);
	ofEndShape();

	this->cam.end();
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofSetColor(255);

ofNoFill();

ofEnableDepthTest();

auto ico_sphere = ofIcoSpherePrimitive(300, 4);

this->triangle_list.insert(this->triangle_list.end(), ico_sphere.getMesh().getUniqueFaces().begin(), ico_sphere.getMesh().getUniqueFaces().end());

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->mesh.clear();

this->frame.clear();

this->random_walk.clear();

auto radius = 250;

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

for (int i = 0; i < 150; i++) {

auto location = glm::vec3(

ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.06 + i * 0.03), 0, 1, -radius * 1.2, radius * 1.2),

ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.06 + i * 0.03), 0, 1, -radius * 1.2, radius * 1.2),

ofMap(ofNoise(noise_seed.z, ofGetFrameNum() * 0.06 + i * 0.03), 0, 1, -radius * 1.2, radius * 1.2));

this->random_walk.push_back(location);

}

for (int k = 0; k < this->triangle_list.size(); k++) {

glm::vec3 avg = (this->triangle_list[k].getVertex(0) + this->triangle_list[k].getVertex(1) + this->triangle_list[k].getVertex(2)) / 3;

bool flag = true;

for (auto& location : this->random_walk) {

if (glm::distance(avg, location) < 80) {

if (glm::length(location) < radius + 20 && glm::length(location) > radius - 20) {

flag = false;

continue;

}

if (flag == false) { continue; }

vector<glm::vec3> vertices;

vertices.push_back(glm::normalize(this->triangle_list[k].getVertex(0)) * radius);

vertices.push_back(glm::normalize(this->triangle_list[k].getVertex(1)) * radius);

vertices.push_back(glm::normalize(this->triangle_list[k].getVertex(2)) * radius);

this->mesh.addVertices(vertices);

this->frame.addVertices(vertices);

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

auto alpha = radius < 250 ? 255 : ofMap(radius, 250, 320, 255, 0);

this->mesh.addColor(ofColor(0, alpha));

this->frame.addColor(ofColor(255, 255, 255, alpha));

}

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

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

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

this->frame.addIndex(this->frame.getNumVertices() - 3); this->frame.addIndex(this->frame.getNumVertices() - 1);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum());

ofSetLineWidth(0.5);

this->mesh.draw();

this->frame.drawWireframe();

ofSetColor(255);

ofSetLineWidth(3);

ofBeginShape();

ofVertices(this->random_walk);

ofEndShape();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230626

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2023年6月25日

Circle by square. Draw by openFrameworks

[ Video ]

[ About ]
四角から円。

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

ofEasyCam cam;

};

#include "ofApp.h"

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

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

	ofBackground(39);

	ofSetLineWidth(2);
	ofNoFill();
}

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

}

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

	this->cam.begin();

	ofColor color;
	for (int base_deg = 0; base_deg < 360; base_deg += 3) {
		
		ofPushMatrix();
		ofRotateY(base_deg);

		color.setHsb(ofMap(base_deg, 0, 360, 0, 255), 139, 255);

		int deg_start = base_deg * 10 + ofGetFrameNum() * 3;
		for (int deg = deg_start; deg < deg_start + 90; deg += 1) {

			ofSetColor(color, ofMap(deg, deg_start, deg_start + 90, 0, 255));
			int param = ofMap(deg, 0, 360, 0, 100);
			auto location = glm::vec3(this->make_point(150, param), 230);
			auto next = glm::vec3(this->make_point(150, param + 1), 230);
							   
			ofDrawLine(glm::vec3(0, location.x, location.y + 300), glm::vec3(0, next.x, next.y + 300));
			
		}

		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());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofSetLineWidth(2);

ofNoFill();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

ofColor color;

for (int base_deg = 0; base_deg < 360; base_deg += 3) {

ofPushMatrix();

ofRotateY(base_deg);

color.setHsb(ofMap(base_deg, 0, 360, 0, 255), 139, 255);

int deg_start = base_deg * 10 + ofGetFrameNum() * 3;

for (int deg = deg_start; deg < deg_start + 90; deg += 1) {

ofSetColor(color, ofMap(deg, deg_start, deg_start + 90, 0, 255));

int param = ofMap(deg, 0, 360, 0, 100);

auto location = glm::vec3(this->make_point(150, param), 230);

auto next = glm::vec3(this->make_point(150, param + 1), 230);

ofDrawLine(glm::vec3(0, location.x, location.y + 300), glm::vec3(0, next.x, next.y + 300));

}

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/Insta20230625

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