font – ページ 23 – プログラミング de 落描き

2021年9月19日

Warped numbers. Draw by openFrameworks

[ Video ]

[ About ]
数字の文字座標を回転させる。

Rotate the character coordinates of a number.

[ 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;
	ofTrueTypeFont font;
};

#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;

ofTrueTypeFont font;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(2);
	ofEnableDepthTest();

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

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

	ofSeedRandom(39);
}

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

	this->cam.begin();
	ofRotateX(270);

	vector<string> word_list = {
		"0", "1", "2", "3",
		"6", "5", "4",
		"7", "8", "9", "0"
	};

	for (int base_deg = 0; base_deg < 360; base_deg += 30) {

		for (int y = -240 - 60; y < 300; y += 60) {

			int word_index = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0001), 0, 1, 0, word_list.size());
			auto word = word_list[word_index];

			int sample_count = 60;
			vector<ofPath> word_path = this->font.getStringAsPoints(word, true, false);
			for (int word_index = 0; word_index < word_path.size(); word_index++) {

				vector<ofPolyline> outline = word_path[word_index].getOutline();
				for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

					outline[outline_index] = outline[outline_index].getResampledByCount(sample_count);
					vector<glm::vec3> vertices = outline[outline_index].getVertices();
					vector<glm::vec3> mesh_vertices;
					vector<glm::vec3> base_location_list;
					vector<glm::highp_mat4x4> rotate_vertices;

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

						auto base_location = glm::vec3(0, y, 100);
						base_location += glm::vec3(this->font.stringWidth(word_list[word_index]) * 0.5, this->font.stringHeight(word_list[word_index]) * 0.5, 0);

						auto deg = base_deg + ofMap(ofNoise((base_location.y + vertices[vertices_index].y * -1) * 0.001 + ofGetFrameNum() * 0.008), 0, 1, -360, 360);

						auto rotation = glm::rotate(glm::mat4(), (float)(deg * DEG_TO_RAD), glm::vec3(0, 1, 0));
						auto location = vertices[vertices_index] - glm::vec3(this->font.stringWidth(word_list[word_index]) * 0.5, this->font.stringHeight(word_list[word_index]) * 0.5, 0);

						mesh_vertices.push_back(location);
						rotate_vertices.push_back(rotation);
						base_location_list.push_back(base_location);
					}

					ofMesh face, line;
					line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
					for (int k = 0; k < mesh_vertices.size(); k++) {

						face.addVertex(glm::vec4(base_location_list[k], 0) * rotate_vertices[k] + glm::vec4(mesh_vertices[k] + glm::vec3(0, 0, -5), 0) * -rotate_vertices[k]);
						face.addVertex(glm::vec4(base_location_list[k], 0) * rotate_vertices[k] + glm::vec4(mesh_vertices[k] + glm::vec3(0, 0, 5), 0) * -rotate_vertices[k]);

						line.addVertex(glm::vec4(base_location_list[k], 0) * rotate_vertices[k] + glm::vec4(mesh_vertices[k] + glm::vec3(0, 0, -5), 0) * -rotate_vertices[k]);
						line.addVertex(glm::vec4(base_location_list[k], 0) * rotate_vertices[k] + glm::vec4(mesh_vertices[k] + glm::vec3(0, 0, 5), 0) * -rotate_vertices[k]);

						if (k > 0) {

							face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 4);
							face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 4);

							line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 3);
							line.addIndex(line.getNumVertices() - 2); line.addIndex(line.getNumVertices() - 4);
						}
					}

					face.addIndex(face.getNumVertices() - 1); face.addIndex(0); face.addIndex(1);
					face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 2); face.addIndex(2);

					line.addIndex(line.getNumVertices() - 1); line.addIndex(1);
					line.addIndex(line.getNumVertices() - 2); line.addIndex(0);

					ofSetColor(39);
					face.draw();

					ofSetColor(239);
					line.drawWireframe();
				}
			}
		}
	}

	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(239);

ofSetLineWidth(2);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(270);

vector<string> word_list = {

"0", "1", "2", "3",

"6", "5", "4",

"7", "8", "9", "0"

};

for (int base_deg = 0; base_deg < 360; base_deg += 30) {

for (int y = -240 - 60; y < 300; y += 60) {

int word_index = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0001), 0, 1, 0, word_list.size());

auto word = word_list[word_index];

int sample_count = 60;

vector<ofPath> word_path = this->font.getStringAsPoints(word, true, false);

for (int word_index = 0; word_index < word_path.size(); word_index++) {

vector<ofPolyline> outline = word_path[word_index].getOutline();

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

outline[outline_index] = outline[outline_index].getResampledByCount(sample_count);

vector<glm::vec3> vertices = outline[outline_index].getVertices();

vector<glm::vec3> mesh_vertices;

vector<glm::vec3> base_location_list;

vector<glm::highp_mat4x4> rotate_vertices;

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

auto base_location = glm::vec3(0, y, 100);

base_location += glm::vec3(this->font.stringWidth(word_list[word_index]) * 0.5, this->font.stringHeight(word_list[word_index]) * 0.5, 0);

auto deg = base_deg + ofMap(ofNoise((base_location.y + vertices[vertices_index].y * -1) * 0.001 + ofGetFrameNum() * 0.008), 0, 1, -360, 360);

auto rotation = glm::rotate(glm::mat4(), (float)(deg * DEG_TO_RAD), glm::vec3(0, 1, 0));

auto location = vertices[vertices_index] - glm::vec3(this->font.stringWidth(word_list[word_index]) * 0.5, this->font.stringHeight(word_list[word_index]) * 0.5, 0);

mesh_vertices.push_back(location);

rotate_vertices.push_back(rotation);

base_location_list.push_back(base_location);

}

ofMesh face, line;

line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

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

face.addVertex(glm::vec4(base_location_list[k], 0) * rotate_vertices[k] + glm::vec4(mesh_vertices[k] + glm::vec3(0, 0, -5), 0) * -rotate_vertices[k]);

face.addVertex(glm::vec4(base_location_list[k], 0) * rotate_vertices[k] + glm::vec4(mesh_vertices[k] + glm::vec3(0, 0, 5), 0) * -rotate_vertices[k]);

line.addVertex(glm::vec4(base_location_list[k], 0) * rotate_vertices[k] + glm::vec4(mesh_vertices[k] + glm::vec3(0, 0, -5), 0) * -rotate_vertices[k]);

line.addVertex(glm::vec4(base_location_list[k], 0) * rotate_vertices[k] + glm::vec4(mesh_vertices[k] + glm::vec3(0, 0, 5), 0) * -rotate_vertices[k]);

if (k > 0) {

face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 4);

face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 4);

line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 3);

line.addIndex(line.getNumVertices() - 2); line.addIndex(line.getNumVertices() - 4);

}

face.addIndex(face.getNumVertices() - 1); face.addIndex(0); face.addIndex(1);

face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 2); face.addIndex(2);

line.addIndex(line.getNumVertices() - 1); line.addIndex(1);

line.addIndex(line.getNumVertices() - 2); line.addIndex(0);

ofSetColor(39);

face.draw();

ofSetColor(239);

line.drawWireframe();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210919

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2021年9月16日2021年9月16日

Difference in rotation axis. Draw by openFrameworks

[ Video ]

[ About ]
ofRotateに与えるAxisパラメータを3パターン試す。

Try three patterns for the Axis parameter given to ofRotate.

[ 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;

	float font_size;
	ofTrueTypeFont font;
};

#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;

float font_size;

ofTrueTypeFont font;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(1.5);
	ofEnableDepthTest();

	this->font_size = 80;
	this->font.loadFont("fonts/Kazesawa-Bold.ttf", this->font_size, true, true, true);
}


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

	ofSeedRandom(39);
}

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

	this->cam.begin();
	ofRotateX(180);

	string word = "JunKiyoshi";
	auto path_list = font.getStringAsPoints(word, true, false);

	vector<glm::vec3> rotate_param = { glm::vec3(1, 0, 0), glm::vec3(0, 0, 1), glm::vec3(0, 1, 0) };

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

		for (auto& path : path_list) {

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

			int y = i * 300 - 300;

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

			ofSetColor(39);
			ofFill();

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

				if (outline_index != 0) { ofNextContour(true); }

				outline[outline_index] = outline[outline_index].getResampledByCount(100);
				auto vertices = outline[outline_index].getVertices();
				for (int vertices_index = 0; vertices_index < vertices.size(); vertices_index++) {

					auto location = glm::vec3(vertices[vertices_index].x - this->font.stringWidth(word) * 0.5, vertices[vertices_index].y + this->font.stringHeight(word) * 0.25, 0);
					auto angle = ofMap(ofNoise(abs(location.x) * 0.003 + ofGetFrameNum() * 0.02), 0, 1, -PI * 1, PI * 1);
					auto rotation = glm::rotate(glm::mat4(), angle, rotate_param[i]);
					location = glm::vec4(location, 0) * rotation;

					ofVertex(location);
				}
			}
			ofEndShape(true);

			ofSetColor(239);
			ofNoFill();

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

				if (outline_index != 0) { ofNextContour(true); }

				outline[outline_index] = outline[outline_index].getResampledByCount(100);
				auto vertices = outline[outline_index].getVertices();
				for (int vertices_index = 0; vertices_index < vertices.size(); vertices_index++) {

					auto location = glm::vec3(vertices[vertices_index].x - this->font.stringWidth(word) * 0.5, vertices[vertices_index].y + this->font.stringHeight(word) * 0.25, 0);
					auto angle = ofMap(ofNoise(abs(location.x) * 0.003 + ofGetFrameNum() * 0.02), 0, 1, -PI * 1, PI * 1);
					auto rotation = glm::rotate(glm::mat4(), angle, rotate_param[i]);
					location = glm::vec4(location, 0) * rotation;

					ofVertex(location);
				}
			}
			ofEndShape(true);

			ofPopMatrix();
		}
	}

	this->cam.end();
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetLineWidth(1.5);

ofEnableDepthTest();

this->font_size = 80;

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

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(180);

string word = "JunKiyoshi";

auto path_list = font.getStringAsPoints(word, true, false);

vector<glm::vec3> rotate_param = { glm::vec3(1, 0, 0), glm::vec3(0, 0, 1), glm::vec3(0, 1, 0) };

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

for (auto& path : path_list) {

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

int y = i * 300 - 300;

ofPushMatrix();

ofTranslate(0, y, 0);

ofSetColor(39);

ofFill();

ofBeginShape();

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

if (outline_index != 0) { ofNextContour(true); }

outline[outline_index] = outline[outline_index].getResampledByCount(100);

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

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

auto location = glm::vec3(vertices[vertices_index].x - this->font.stringWidth(word) * 0.5, vertices[vertices_index].y + this->font.stringHeight(word) * 0.25, 0);

auto angle = ofMap(ofNoise(abs(location.x) * 0.003 + ofGetFrameNum() * 0.02), 0, 1, -PI * 1, PI * 1);

auto rotation = glm::rotate(glm::mat4(), angle, rotate_param[i]);

location = glm::vec4(location, 0) * rotation;

ofVertex(location);

}

ofEndShape(true);

ofSetColor(239);

ofNoFill();

ofBeginShape();

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

if (outline_index != 0) { ofNextContour(true); }

outline[outline_index] = outline[outline_index].getResampledByCount(100);

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

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

auto location = glm::vec3(vertices[vertices_index].x - this->font.stringWidth(word) * 0.5, vertices[vertices_index].y + this->font.stringHeight(word) * 0.25, 0);

auto angle = ofMap(ofNoise(abs(location.x) * 0.003 + ofGetFrameNum() * 0.02), 0, 1, -PI * 1, PI * 1);

auto rotation = glm::rotate(glm::mat4(), angle, rotate_param[i]);

location = glm::vec4(location, 0) * rotation;

ofVertex(location);

}

ofEndShape(true);

ofPopMatrix();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210916

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2021年9月8日2021年9月8日

Overwrite. Draw by openFrameworks

[ Video ]

[ About ]
ofSetBackgroundAuto(false)で塗りつぶしを止めて、書き続ける。

Stop filling with ofSetBackgroundAuto(false) and continue writing.

[ 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);

	ofTrueTypeFont font;
	int font_size;
	vector<string> words;

	vector<ofMesh> mesh_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 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);

ofTrueTypeFont font;

int font_size;

vector<string> words;

vector<ofMesh> mesh_list;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(239);
	ofNoFill();
	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);
	ofSetBackgroundAuto(false);

	this->font_size = 55;
	ofTrueTypeFontSettings font_settings("fonts/msgothic.ttc", this->font_size);
	font_settings.antialiased = true;
	font_settings.addRanges(ofAlphabet::Japanese);
	this->font.load(font_settings);

	this->words = {

		u8"はる", u8"なつ", u8"あき", u8"ふゆ", u8"そら",
		u8"つち", u8"あめ", u8"くも", u8"かさ", u8"ひと",
	};
}

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

	ofColor color;
	vector<ofColor> color_list;
	vector<int> hex_list = { 0xef476f, 0xffd166, 0x06d6a0, 0x118ab2, 0x073b4c };
	for (auto hex : hex_list) {

		color.setHex(hex);
		color_list.push_back(color);
	}

	if (ofGetFrameNum() % 2 == 0) {

		this->mesh_list.clear();

		ofColor color_1, color_2;
		int len = 600;
		int x = ofGetWidth() * 0.5;
		int y = ofGetHeight() * 0.5;

		ofMesh mesh;
		color_1 = color_list[int(ofRandom(color_list.size()))];
		color_2 = color_list[int(ofRandom(color_list.size()))];

		int param = ofRandom(100);

		if (ofRandom(1) < 0.5) {

			mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, param), 0));
			mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, param + 2), 0));
			mesh.addColor(color_1);
			mesh.addColor(color_1);

			mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, 100 - param - 2), 0));
			mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, 100 - param), 0));
			mesh.addColor(color_2);
			mesh.addColor(color_2);
		}
		else {

			mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, param), 0));
			mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, param + 2), 0));
			mesh.addColor(color_1);
			mesh.addColor(color_1);

			mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, 75 - param + 75 - 2), 0));
			mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, 75 - param + 75), 0));
			mesh.addColor(color_2);
			mesh.addColor(color_2);
		}

		mesh.addIndex(0); mesh.addIndex(1); mesh.addIndex(3);
		mesh.addIndex(1); mesh.addIndex(2); mesh.addIndex(3);

		this->mesh_list.push_back(mesh);
	}
}

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

	if (ofGetFrameNum() % 12 == 0) {

		int x = ofRandom(120, 600);
		int y = ofRandom(150, 570);
		int word_index = (int)ofRandom(this->words.size());

		ofFill();
		ofSetColor(239);

		ofPushMatrix();
		ofTranslate(x, y);
		ofRotateZ(ofRandom(360));

		this->font.drawString(this->words[word_index], -60, -60);

		ofPopMatrix();

	}

	ofNoFill();
	for (auto& mesh : this->mesh_list) {

		mesh.draw();

		ofSetColor(255);
		ofBeginShape();
		for (auto& vertex : mesh.getVertices()) {

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

	ofSetColor(39);
	ofDrawRectangle(360, 360, 600, 600);
}

//--------------------------------------------------------------
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());
}

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetColor(239);

ofNoFill();

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

ofSetBackgroundAuto(false);

this->font_size = 55;

ofTrueTypeFontSettings font_settings("fonts/msgothic.ttc", this->font_size);

font_settings.antialiased = true;

font_settings.addRanges(ofAlphabet::Japanese);

this->font.load(font_settings);

this->words = {

u8"はる", u8"なつ", u8"あき", u8"ふゆ", u8"そら",

u8"つち", u8"あめ", u8"くも", u8"かさ", u8"ひと",

};

}

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

void ofApp::update() {

ofColor color;

vector<ofColor> color_list;

vector<int> hex_list = { 0xef476f, 0xffd166, 0x06d6a0, 0x118ab2, 0x073b4c };

for (auto hex : hex_list) {

color.setHex(hex);

color_list.push_back(color);

}

if (ofGetFrameNum() % 2 == 0) {

this->mesh_list.clear();

ofColor color_1, color_2;

int len = 600;

int x = ofGetWidth() * 0.5;

int y = ofGetHeight() * 0.5;

ofMesh mesh;

color_1 = color_list[int(ofRandom(color_list.size()))];

color_2 = color_list[int(ofRandom(color_list.size()))];

int param = ofRandom(100);

if (ofRandom(1) < 0.5) {

mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, param), 0));

mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, param + 2), 0));

mesh.addColor(color_1);

mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, 100 - param - 2), 0));

mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, 100 - param), 0));

mesh.addColor(color_2);

}

else {

mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, param), 0));

mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, param + 2), 0));

mesh.addColor(color_1);

mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, 75 - param + 75 - 2), 0));

mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, 75 - param + 75), 0));

mesh.addColor(color_2);

}

mesh.addIndex(0); mesh.addIndex(1); mesh.addIndex(3);

mesh.addIndex(1); mesh.addIndex(2); mesh.addIndex(3);

this->mesh_list.push_back(mesh);

}

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

void ofApp::draw() {

if (ofGetFrameNum() % 12 == 0) {

int x = ofRandom(120, 600);

int y = ofRandom(150, 570);

int word_index = (int)ofRandom(this->words.size());

ofFill();

ofSetColor(239);

ofPushMatrix();

ofTranslate(x, y);

ofRotateZ(ofRandom(360));

this->font.drawString(this->words[word_index], -60, -60);

ofPopMatrix();

}

ofNoFill();

for (auto& mesh : this->mesh_list) {

mesh.draw();

ofSetColor(255);

ofBeginShape();

for (auto& vertex : mesh.getVertices()) {

ofVertex(vertex);

}

ofEndShape(true);

}

ofSetColor(39);

ofDrawRectangle(360, 360, 600, 600);

}

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

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/Insta20210908

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