programming – ページ 418 – プログラミング de 落描き

2020年3月5日2020年3月5日

Ascii women. openFrameworks

[ Video ]

[ About ]
動画のピクセル値を文字に変換。

Changing video to Ascii.

[ Source ]

#pragma once
#include "ofMain.h"
#include "opencv2/opencv.hpp"

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;

	cv::VideoCapture cap;
	cv::Size cap_size;
	ofTrueTypeFont font;

	cv::Mat frame;
};

#pragma once

#include "ofMain.h"

#include "opencv2/opencv.hpp"

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;

cv::VideoCapture cap;

cv::Size cap_size;

ofTrueTypeFont font;

cv::Mat frame;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(0);
	ofEnableDepthTest();
	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

	this->cap.open("D:\\Pexels Videos 2441067.mp4");
	this->cap_size = cv::Size(1280, 720);
	this->cap.set(cv::CAP_PROP_POS_FRAMES, 90 * 24); // Sec * FrameRate

	this->font.loadFont("fonts/Kazesawa-Bold.ttf", 5, true, true, true);
}
//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);

	cv::Mat src;
	this->cap >> src;
	if (src.empty()) {

		this->cap.set(cv::CAP_PROP_POS_FRAMES, 1);
		return;
	}

	cv::resize(src, this->frame, this->cap_size);
	cv::cvtColor(this->frame, this->frame, cv::COLOR_BGR2GRAY);
}

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

	this->cam.begin();
	
	char moji[11] = { ' ', '#', 'M', 'W', 'A', 'B', 'G', 'C', 'L', 'I', 'T' };
	int value;
	for (int y = 0; y < this->frame.rows; y += 5) {

		for (int x = 0; x < this->frame.cols; x += 5) {
			
			value = this->frame.at<unsigned char>(y, x);
			if (value < 150) {

				this->font.drawStringAsShapes(string{ moji[(int)ofMap(value, 0, 150, 0, 11)] }, x - 640, 360 - y);
			}
		}
	}

	this->cam.end();
}

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

	ofSetupOpenGL(1280, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(0);

ofEnableDepthTest();

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

this->cap.open("D:\\Pexels Videos 2441067.mp4");

this->cap_size = cv::Size(1280, 720);

this->cap.set(cv::CAP_PROP_POS_FRAMES, 90 * 24); // Sec * FrameRate

this->font.loadFont("fonts/Kazesawa-Bold.ttf", 5, true, true, true);

}

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

void ofApp::update() {

ofSeedRandom(39);

cv::Mat src;

this->cap >> src;

if (src.empty()) {

this->cap.set(cv::CAP_PROP_POS_FRAMES, 1);

return;

}

cv::resize(src, this->frame, this->cap_size);

cv::cvtColor(this->frame, this->frame, cv::COLOR_BGR2GRAY);

}

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

void ofApp::draw() {

this->cam.begin();

char moji[11] = { ' ', '#', 'M', 'W', 'A', 'B', 'G', 'C', 'L', 'I', 'T' };

int value;

for (int y = 0; y < this->frame.rows; y += 5) {

for (int x = 0; x < this->frame.cols; x += 5) {

value = this->frame.at<unsigned char>(y, x);

if (value < 150) {

this->font.drawStringAsShapes(string{ moji[(int)ofMap(value, 0, 150, 0, 11)] }, x - 640, 360 - y);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(1280, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200305

2020年3月4日2020年3月4日

Scattered frames. openFrameworks

[ Video ]

[ About ]
フレームを散りばめる。

Scattered frames.

[ Source ]

#pragma once
#include "ofMain.h"
#include "opencv2/opencv.hpp"

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;

	cv::VideoCapture cap;
	cv::Size cap_size;
	int number_of_frames;
	vector<cv::Mat> frame_list;

	ofImage image;
	cv::Mat frame;
	vector<ofMesh> mesh_list;
};

#pragma once

#include "ofMain.h"

#include "opencv2/opencv.hpp"

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;

cv::VideoCapture cap;

cv::Size cap_size;

int number_of_frames;

vector<cv::Mat> frame_list;

ofImage image;

cv::Mat frame;

vector<ofMesh> mesh_list;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofSetColor(255);
	ofEnableDepthTest();
	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

	this->cap.open("D:\\video\\image16.mp4");
	this->cap_size = cv::Size(256, 144);

	this->image.allocate(this->cap_size.width, this->cap_size.height, OF_IMAGE_COLOR);
	this->frame = cv::Mat(cv::Size(this->image.getWidth(), this->image.getHeight()), CV_MAKETYPE(CV_8UC3, this->image.getPixels().getNumChannels()), this->image.getPixels().getData(), 0);

	this->number_of_frames = 30 * 25; // Second * FrameRate
	for (int i = 0; i < this->number_of_frames; i++) {

		cv::Mat src, tmp;
		this->cap >> src;
		if (src.empty()) {

			continue;
		}

		cv::resize(src, tmp, this->cap_size);
		cv::cvtColor(tmp, tmp, cv::COLOR_BGR2RGB);

		this->frame_list.push_back(tmp);
	}

	for (int i = 0; i < 128; i++) {

		ofMesh mesh;
		mesh.addVertex(glm::vec3(-128, -72, 0));
		mesh.addVertex(glm::vec3(128, -72, 0));
		mesh.addVertex(glm::vec3(128, 72, 0));
		mesh.addVertex(glm::vec3(-128, 72, 0));

		mesh.addTexCoord(glm::vec3(0, 0, 0));
		mesh.addTexCoord(glm::vec3(256, 0, 0));
		mesh.addTexCoord(glm::vec3(256, 144, 0));
		mesh.addTexCoord(glm::vec3(0, 144, 0));

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

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

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

	ofSeedRandom(39);
}

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

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

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

		auto location = glm::vec3(ofRandom(-1280, 1280), ofRandom(-720, 720), 0);
		int n = ((int)ofMap(location.x, -1280, 1280, this->number_of_frames, 0) + ofGetFrameNum()) % this->number_of_frames;
		this->frame_list[n].copyTo(this->frame);
		this->image.update();

		ofPushMatrix();
		ofTranslate(location);

		ofRotateZ(ofRandom(360));

		ofFill();
		this->image.bind();
		mesh.draw();
		this->image.unbind();

		ofNoFill();
		ofDrawRectangle(0, 0, 256, 144);

		ofPopMatrix();
	}

	this->cam.end();
}

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

	ofSetupOpenGL(1280, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(255);

ofEnableDepthTest();

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

this->cap.open("D:\\video\\image16.mp4");

this->cap_size = cv::Size(256, 144);

this->image.allocate(this->cap_size.width, this->cap_size.height, OF_IMAGE_COLOR);

this->frame = cv::Mat(cv::Size(this->image.getWidth(), this->image.getHeight()), CV_MAKETYPE(CV_8UC3, this->image.getPixels().getNumChannels()), this->image.getPixels().getData(), 0);

this->number_of_frames = 30 * 25; // Second * FrameRate

for (int i = 0; i < this->number_of_frames; i++) {

cv::Mat src, tmp;

this->cap >> src;

if (src.empty()) {

continue;

}

cv::resize(src, tmp, this->cap_size);

cv::cvtColor(tmp, tmp, cv::COLOR_BGR2RGB);

this->frame_list.push_back(tmp);

}

for (int i = 0; i < 128; i++) {

ofMesh mesh;

mesh.addVertex(glm::vec3(-128, -72, 0));

mesh.addVertex(glm::vec3(128, -72, 0));

mesh.addVertex(glm::vec3(128, 72, 0));

mesh.addVertex(glm::vec3(-128, 72, 0));

mesh.addTexCoord(glm::vec3(0, 0, 0));

mesh.addTexCoord(glm::vec3(256, 0, 0));

mesh.addTexCoord(glm::vec3(256, 144, 0));

mesh.addTexCoord(glm::vec3(0, 144, 0));

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

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

this->mesh_list.push_back(mesh);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(180);

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

auto location = glm::vec3(ofRandom(-1280, 1280), ofRandom(-720, 720), 0);

int n = ((int)ofMap(location.x, -1280, 1280, this->number_of_frames, 0) + ofGetFrameNum()) % this->number_of_frames;

this->frame_list[n].copyTo(this->frame);

this->image.update();

ofPushMatrix();

ofTranslate(location);

ofRotateZ(ofRandom(360));

ofFill();

this->image.bind();

mesh.draw();

this->image.unbind();

ofNoFill();

ofDrawRectangle(0, 0, 256, 144);

ofPopMatrix();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(1280, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200304

2020年3月3日2020年3月3日

Torus of red and white. openFrameworks

[ Video ]

[ About ]
縁起が良さそうな色合いのトーラス。

Torus of red and white.

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

	ofEasyCam cam;
	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) {};

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

ofEasyCam cam;

ofMesh face, frame;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofEnableDepthTest();

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

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

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

	auto R = 100.f;
	auto r = 30.f;
	auto u_step = 1.f;
	auto v_step = 1.f;

	for (int i = 0; i < 7; i++) {

		float angle_z = (i * u_step * 2) * DEG_TO_RAD;
		auto rotation_z = glm::rotate(glm::mat4(), angle_z, glm::vec3(0, 0, 1));

		auto v_start = 0.f;
		auto v_len = 360.f;

		if (i % 2 == 0) {

			v_start = (ofGetFrameNum() + i * 15) % 360;
			v_len = 180;
		}

		for (auto v = v_start; v < v_start + v_len; v += v_step) {

			vector<glm::vec3> vertices{
				glm::vec4(this->make_point(R, r, v * u_step, v), 0) * rotation_z,
				glm::vec4(this->make_point(R, r, (v + v_step) * u_step, v + v_step), 0) * rotation_z,
				glm::vec4(this->make_point(R, r, v * u_step, v + v_step), 0) * rotation_z,
				glm::vec4(this->make_point(R, r, (v - v_step) * u_step, v), 0) * rotation_z
			};

			auto index = this->face.getNumVertices();

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

			this->face.addIndex(index + 0); this->face.addIndex(index + 1); this->face.addIndex(index + 2);
			this->face.addIndex(index + 0); this->face.addIndex(index + 2); this->face.addIndex(index + 3);

			this->frame.addIndex(index + 0); this->frame.addIndex(index + 1);
			this->frame.addIndex(index + 2); this->frame.addIndex(index + 3);
			
			for (int k = 0; k < 4; k++) {

				i % 2 == 0 ? this->face.addColor(ofColor(239, 39, 39)) : this->face.addColor(ofColor(239));
				i % 2 == 0 ? this->frame.addColor(ofColor(239)) : this->frame.addColor(ofColor(239, 39, 39));
			}
		}
	}
}


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

	this->cam.begin();

	this->face.draw();
	this->frame.drawWireframe();

	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(7 * u)) * cos(2 * v);
	auto y = (R + r * cos(7 * u)) * sin(2 * v);
	auto z = r * sin(7 * u);

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


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

	ofSetupOpenGL(1280, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

100

101

102

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

this->face.clear();

this->frame.clear();

auto R = 100.f;

auto r = 30.f;

auto u_step = 1.f;

auto v_step = 1.f;

for (int i = 0; i < 7; i++) {

float angle_z = (i * u_step * 2) * DEG_TO_RAD;

auto rotation_z = glm::rotate(glm::mat4(), angle_z, glm::vec3(0, 0, 1));

auto v_start = 0.f;

auto v_len = 360.f;

if (i % 2 == 0) {

v_start = (ofGetFrameNum() + i * 15) % 360;

v_len = 180;

}

for (auto v = v_start; v < v_start + v_len; v += v_step) {

vector<glm::vec3> vertices{

glm::vec4(this->make_point(R, r, v * u_step, v), 0) * rotation_z,

glm::vec4(this->make_point(R, r, (v + v_step) * u_step, v + v_step), 0) * rotation_z,

glm::vec4(this->make_point(R, r, v * u_step, v + v_step), 0) * rotation_z,

glm::vec4(this->make_point(R, r, (v - v_step) * u_step, v), 0) * rotation_z

};

auto index = this->face.getNumVertices();

this->face.addVertices(vertices);

this->frame.addVertices(vertices);

this->face.addIndex(index + 0); this->face.addIndex(index + 1); this->face.addIndex(index + 2);

this->face.addIndex(index + 0); this->face.addIndex(index + 2); this->face.addIndex(index + 3);

this->frame.addIndex(index + 0); this->frame.addIndex(index + 1);

this->frame.addIndex(index + 2); this->frame.addIndex(index + 3);

for (int k = 0; k < 4; k++) {

i % 2 == 0 ? this->face.addColor(ofColor(239, 39, 39)) : this->face.addColor(ofColor(239));

i % 2 == 0 ? this->frame.addColor(ofColor(239)) : this->frame.addColor(ofColor(239, 39, 39));

}

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

void ofApp::draw() {

this->cam.begin();

this->face.draw();

this->frame.drawWireframe();

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(7 * u)) * cos(2 * v);

auto y = (R + r * cos(7 * u)) * sin(2 * v);

auto z = r * sin(7 * u);

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

}

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

int main() {

ofSetupOpenGL(1280, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200303

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