2018年4月 – ページ 7 – プログラミング de 落描き

2018年4月12日2018年4月11日

ofxTrueTypeFontUCから取得した座標で遊ぶ openFrameworks

[ Video ]

[ About ]
ofxTrueTypeFontUCでせっかく日本語が扱えるにようになったのに全然触っていなかったので遊んでみました。ofxTrueTypeFontUCのgetStringAsPoints関数から文字の座標を取得して、全ての座標を原点から同じ距離にしてあります。

Z軸も少しズラしてあるので球体に張り付いた文字のような形になってくれました。文字が大きいビリヤードボールのような形ですね。

動画をシェアしているSNS(Instagram/Twitter)のフォロワーは基本外国の方が多いですが、ひらがなが文字という事に気づいてくれるだろうか…(笑

[ Source ]

#pragma once
#include "ofMain.h"
#include "ofxTrueTypeFontUC/src/ofxTrueTypeFontUC.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) {};

	// Make Member
	ofEasyCam cam;
	ofxTrueTypeFontUC font;
	
	// Make Method
	void draw_character_sphere(ofPoint point, string word, int radius);
};

#pragma once

#include "ofMain.h"

#include "ofxTrueTypeFontUC/src/ofxTrueTypeFontUC.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) {};

// Make Member

ofEasyCam cam;

ofxTrueTypeFontUC font;

// Make Method

void draw_character_sphere(ofPoint point, string word, int radius);

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofBackground(239);
	ofSetWindowTitle("Insta");

	ofEnableDepthTest();
	ofSetColor(39);

	this->font.loadFont("fonts/Kazesawa-Bold.ttf", 150, true, true);
}

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

	ofSeedRandom(39);
}

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

	vector<vector<string>> words = {
		{ "あ", "い", "う", "え", "お" },
		{ "か", "き", "く", "け", "こ" },
		{ "さ", "し", "す", "せ", "そ" },
		{ "た", "ち", "つ", "て", "と" },
		{ "な", "に", "ぬ", "ね", "の" },
	};

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

	int span = 144;
	for (int y = 0; y < words.size(); y++) {

		for (int x = 0; x < words[y].size(); x++) {
			
			this->draw_character_sphere(ofPoint(x * span - ofGetWidth() / 2 + span / 2, y * span - ofGetHeight() / 2 + span / 2), words[y][x], 80);
		}
	}

	this->cam.end();
}

//--------------------------------------------------------------
void ofApp::draw_character_sphere(ofPoint point, string word, int radius) {

	ofPoint word_size = ofPoint(this->font.stringWidth(word), this->font.stringHeight(word));
	vector<ofTTFCharacter> word_paths = this->font.getStringAsPoints(word);
	ofPoint start, end;

	ofPushMatrix();
	ofTranslate(point);

	int deg_param = ofGetFrameNum() % 1080;
	if (deg_param > 720) {

		ofRotateY(deg_param - 720);
	}
	else if (deg_param > 360) {

		ofRotateZ(deg_param - 360);
	}
	else {

		ofRotateX(deg_param);
	}

	for (int w_index = 0; w_index < word_paths.size(); w_index++) {

		vector<ofPolyline> outline = word_paths[w_index].getOutline();
		ofVec3f center = outline[0].getCentroid2D();
		for (int o_index = 0; o_index < outline.size(); o_index++) {

			outline[o_index] = outline[o_index].getResampledBySpacing(3);
			vector<ofPoint> vertices = outline[o_index].getVertices();
			for (int v_index = 1; v_index < vertices.size(); v_index++) {

				start = ofPoint(vertices[v_index - 1].x - word_size.x / 2, vertices[v_index - 1].y + word_size.y / 2, -radius);
				end = ofPoint(vertices[v_index].x - word_size.x / 2, vertices[v_index].y + word_size.y / 2, -radius);
				ofDrawLine(start.normalized() * radius, end.normalized() * radius);
			}
			start = ofPoint(vertices[0].x - word_size.x / 2, vertices[0].y + word_size.y / 2, -radius);
			end = ofPoint(vertices[vertices.size() - 1].x - word_size.x / 2, vertices[vertices.size() - 1].y + word_size.y / 2, -radius);
			ofDrawLine(start.normalized() * radius, end.normalized() * radius);
		}
	}

	ofPopMatrix();
}

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

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

100

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(239);

ofSetWindowTitle("Insta");

ofEnableDepthTest();

ofSetColor(39);

this->font.loadFont("fonts/Kazesawa-Bold.ttf", 150, true, true);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

vector<vector<string>> words = {

{ "あ", "い", "う", "え", "お" },

{ "か", "き", "く", "け", "こ" },

{ "さ", "し", "す", "せ", "そ" },

{ "た", "ち", "つ", "て", "と" },

{ "な", "に", "ぬ", "ね", "の" },

};

this->cam.begin();

ofRotateX(180);

int span = 144;

for (int y = 0; y < words.size(); y++) {

for (int x = 0; x < words[y].size(); x++) {

this->draw_character_sphere(ofPoint(x * span - ofGetWidth() / 2 + span / 2, y * span - ofGetHeight() / 2 + span / 2), words[y][x], 80);

}

this->cam.end();

}

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

void ofApp::draw_character_sphere(ofPoint point, string word, int radius) {

ofPoint word_size = ofPoint(this->font.stringWidth(word), this->font.stringHeight(word));

vector<ofTTFCharacter> word_paths = this->font.getStringAsPoints(word);

ofPoint start, end;

ofPushMatrix();

ofTranslate(point);

int deg_param = ofGetFrameNum() % 1080;

if (deg_param > 720) {

ofRotateY(deg_param - 720);

}

else if (deg_param > 360) {

ofRotateZ(deg_param - 360);

}

else {

ofRotateX(deg_param);

}

for (int w_index = 0; w_index < word_paths.size(); w_index++) {

vector<ofPolyline> outline = word_paths[w_index].getOutline();

ofVec3f center = outline[0].getCentroid2D();

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

outline[o_index] = outline[o_index].getResampledBySpacing(3);

vector<ofPoint> vertices = outline[o_index].getVertices();

for (int v_index = 1; v_index < vertices.size(); v_index++) {

start = ofPoint(vertices[v_index - 1].x - word_size.x / 2, vertices[v_index - 1].y + word_size.y / 2, -radius);

end = ofPoint(vertices[v_index].x - word_size.x / 2, vertices[v_index].y + word_size.y / 2, -radius);

ofDrawLine(start.normalized() * radius, end.normalized() * radius);

}

start = ofPoint(vertices[0].x - word_size.x / 2, vertices[0].y + word_size.y / 2, -radius);

end = ofPoint(vertices[vertices.size() - 1].x - word_size.x / 2, vertices[vertices.size() - 1].y + word_size.y / 2, -radius);

ofDrawLine(start.normalized() * radius, end.normalized() * radius);

}

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180411

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2018年4月11日2018年4月10日

黒白ドット openFrameworks

[ Video ]

[ About ]
画面の左端と右端を結ぶ線を作り、線より上部には白い丸だけ、下部には黒い丸だけを描写しています。結ばれた線上にかかっている円は切れて見えるようになっているので実際には描写していないのですが、線が見えてくる気がします。

[ 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);
	ofBackground(139);
	ofSetWindowTitle("Insta");
}

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

}

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

	ofPoint start = ofPoint(0, ofNoise(11, ofGetFrameNum() * 0.01) * ofGetHeight());
	ofPoint end = ofPoint(ofGetWidth(), ofNoise(3, ofGetFrameNum() * 0.01) * ofGetHeight());
	ofPoint distance = end - start;

	float radius = 72;
	bool flag = true;
	for (int circle_x = radius; circle_x < ofGetWidth() + radius; circle_x += radius * 2) {

		for (int circle_y = radius; circle_y < ofGetHeight() + radius; circle_y += radius * 2) {

			flag ? ofSetColor(39) : ofSetColor(239);

			ofBeginShape();
			for (int deg = 0; deg < 360; deg++) {

				float x = radius * cos(deg * DEG_TO_RAD) + circle_x;
				float y = radius * sin(deg * DEG_TO_RAD) + circle_y;
				ofPoint point = start + (distance / ofGetWidth()) * x;
				if (y > point.y) {

					flag ? ofVertex(x, y) : ofVertex(point);
				}
				else {

					flag ? ofVertex(point) : ofVertex(x, y);
				}
			}
			ofEndShape(true);

			flag = !flag;
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(139);

ofSetWindowTitle("Insta");

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofPoint start = ofPoint(0, ofNoise(11, ofGetFrameNum() * 0.01) * ofGetHeight());

ofPoint end = ofPoint(ofGetWidth(), ofNoise(3, ofGetFrameNum() * 0.01) * ofGetHeight());

ofPoint distance = end - start;

float radius = 72;

bool flag = true;

for (int circle_x = radius; circle_x < ofGetWidth() + radius; circle_x += radius * 2) {

for (int circle_y = radius; circle_y < ofGetHeight() + radius; circle_y += radius * 2) {

flag ? ofSetColor(39) : ofSetColor(239);

ofBeginShape();

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

float x = radius * cos(deg * DEG_TO_RAD) + circle_x;

float y = radius * sin(deg * DEG_TO_RAD) + circle_y;

ofPoint point = start + (distance / ofGetWidth()) * x;

if (y > point.y) {

flag ? ofVertex(x, y) : ofVertex(point);

}

else {

flag ? ofVertex(point) : ofVertex(x, y);

}

ofEndShape(true);

flag = !flag;

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180410

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2018年4月10日2018年4月9日

ねじれにねじれ openFrameworks

[ Video ]

[ About ]
Z軸に等間隔で、ある半径の円周上に5度間隔で取得した座標を取得。それぞれの点でSphereを描写・下層の点と線を結んでいます。

5度間隔の開始位置となる角度はNoise関数とフレーム数でズラしていっているので、前後の円周でズレが大きくなったり、小さくなったりしています。

[ 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) {};

	// Make Member
	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) {};

// Make Member

ofEasyCam cam;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofBackground(39);
	ofSetWindowTitle("Insta");

	ofEnableDepthTest();
}

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

	ofSeedRandom(39);
}

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

	int radius = 300;
	int z_span = 150;
	int deg_span = 5;

	vector<vector<ofPoint>> points_list;

	this->cam.begin();
	ofRotateX(-90);

	for (int z = -300; z <= 300; z += z_span) {

		vector<ofPoint> points;
		int deg_start = ofNoise(z * 0.1, ofGetFrameNum() * 0.005) * 720;
		for (int deg = deg_start; deg < deg_start + 360; deg += deg_span) {

			points.push_back(ofPoint(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z));
		}
		points_list.push_back(points);
	}

	
	for (int list_index = 1; list_index < points_list.size(); list_index++) {

		for (int i = 0; i < points_list[list_index].size(); i++) {

			ofSetColor(239);
			ofDrawSphere(points_list[list_index][i], 2);

			if (list_index == 1) {

				ofDrawSphere(points_list[0][i], 2);
			}

			ofSetColor(239, ofMap(points_list[list_index][i].distance(points_list[list_index - 1][i]), 0, radius, 0, 255));
			ofDrawLine(points_list[list_index][i], points_list[list_index - 1][i]);
		}
	}

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(39);

ofSetWindowTitle("Insta");

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

int radius = 300;

int z_span = 150;

int deg_span = 5;

vector<vector<ofPoint>> points_list;

this->cam.begin();

ofRotateX(-90);

for (int z = -300; z <= 300; z += z_span) {

vector<ofPoint> points;

int deg_start = ofNoise(z * 0.1, ofGetFrameNum() * 0.005) * 720;

for (int deg = deg_start; deg < deg_start + 360; deg += deg_span) {

points.push_back(ofPoint(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z));

}

points_list.push_back(points);

}

for (int list_index = 1; list_index < points_list.size(); list_index++) {

for (int i = 0; i < points_list[list_index].size(); i++) {

ofSetColor(239);

ofDrawSphere(points_list[list_index][i], 2);

if (list_index == 1) {

ofDrawSphere(points_list[0][i], 2);

}

ofSetColor(239, ofMap(points_list[list_index][i].distance(points_list[list_index - 1][i]), 0, radius, 0, 255));

ofDrawLine(points_list[list_index][i], points_list[list_index - 1][i]);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180409

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