programming – ページ 7 – プログラミング de 落描き

2023年8月27日

Move alternately. Draw by openFrameworks

[ Video ]

[ About ]
交互に移動。

[ 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(30);
	ofSetWindowTitle("openframeworks");

	ofBackground(39);
	ofSetLineWidth(1.5);
}

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

	ofSeedRandom(39);
}

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

	ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);

	ofColor color;
	for (int k = 0; k < 40; k++) {

		ofRotate(9);

		color.setHsb(ofMap(k, 0, 40, 0, 255), 200, 255);
		ofSetColor(color);

		vector<glm::vec2> vertices;
		for (int i = 0; i < 10; i++) {

			auto radius = k % 2 == 0 ? ofMap(sin((ofGetFrameNum() + i) * 0.314 * 0.35), -1, 1, 200, 300) : ofMap(sin((ofGetFrameNum() + i) * 0.314 * 0.35), -1, 1, 300, 200);
			auto deg = (ofGetFrameNum() + i) * 4;
			auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

			vertices.push_back(location);
		}

		ofNoFill();
		ofBeginShape();
		ofVertices(vertices);
		ofEndShape();

		ofFill();
		ofDrawCircle(vertices[0], 3);
		ofDrawCircle(vertices[vertices.size() - 1], 3);
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(39);

ofSetLineWidth(1.5);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);

ofColor color;

for (int k = 0; k < 40; k++) {

ofRotate(9);

color.setHsb(ofMap(k, 0, 40, 0, 255), 200, 255);

ofSetColor(color);

vector<glm::vec2> vertices;

for (int i = 0; i < 10; i++) {

auto radius = k % 2 == 0 ? ofMap(sin((ofGetFrameNum() + i) * 0.314 * 0.35), -1, 1, 200, 300) : ofMap(sin((ofGetFrameNum() + i) * 0.314 * 0.35), -1, 1, 300, 200);

auto deg = (ofGetFrameNum() + i) * 4;

auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

vertices.push_back(location);

}

ofNoFill();

ofBeginShape();

ofVertices(vertices);

ofEndShape();

ofFill();

ofDrawCircle(vertices[0], 3);

ofDrawCircle(vertices[vertices.size() - 1], 3);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230827

2023年8月26日

Random number generator. Draw by openFrameworks

[ Video ]

[ About ]
乱数発生器。

[ 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;
	string word;

	float noise_step;
};

#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;

string word;

float noise_step;

};

#include "ofApp.h"

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

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

	ofBackground(39);
	ofSetLineWidth(2);
	ofEnableDepthTest();

	this->font.loadFont("fonts/Kazesawa-Bold.ttf", 100, true, true, true);
	this->word = "123456";
}
//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);

	if (ofGetFrameNum() % 30 < 20) {

		this->noise_step += ofMap(ofGetFrameNum() % 20, 0, 20, 0.3, 0.001);
	}
}

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

	this->cam.begin();
	this->cam.setPosition(glm::vec3(0, 0, 800));
	ofRotateY(ofGetFrameNum());
	ofRotateX(215);

	int size = 65;
	for (int base_deg = 0; base_deg < 360; base_deg += 10) {

		ofPushMatrix();
		ofRotateY(base_deg);

		int deg_span = 60;
		int deg_start = (int)ofMap(ofNoise(cos(base_deg * DEG_TO_RAD) * 0.8, sin(base_deg * DEG_TO_RAD) * 0.8, this->noise_step), 0, 1, -360, 360);
		for (int deg = deg_start; deg < deg_start + 360; deg += deg_span){

			ofPath chara_path = this->font.getCharacterAsPoints(this->word[(int)ofMap(deg, deg_start, deg_start + 360, 0, this->word.size())], true, false);
			vector<ofPolyline> outline = chara_path.getOutline();

			ofPushMatrix();
			ofTranslate(0, 0, -300);
			ofRotateX(deg);

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

				ofNextContour(true);

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

					glm::vec3 location = vertex / 100 * size;
					location -= glm::vec3(size * 0.5, -size * 0.5, 60);

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

			ofNoFill();
			ofSetColor(255);
			ofBeginShape();
			for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

				ofNextContour(true);

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

					glm::vec3 location = vertex / 100 * size;
					location -= glm::vec3(size * 0.5, -size * 0.5, 60);

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

			ofPopMatrix();
		}

		ofPopMatrix();
	}

	this->cam.end();
}

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

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

100

101

102

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofSetLineWidth(2);

ofEnableDepthTest();

this->font.loadFont("fonts/Kazesawa-Bold.ttf", 100, true, true, true);

this->word = "123456";

}

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

void ofApp::update() {

ofSeedRandom(39);

if (ofGetFrameNum() % 30 < 20) {

this->noise_step += ofMap(ofGetFrameNum() % 20, 0, 20, 0.3, 0.001);

}

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

void ofApp::draw() {

this->cam.begin();

this->cam.setPosition(glm::vec3(0, 0, 800));

ofRotateY(ofGetFrameNum());

ofRotateX(215);

int size = 65;

for (int base_deg = 0; base_deg < 360; base_deg += 10) {

ofPushMatrix();

ofRotateY(base_deg);

int deg_span = 60;

int deg_start = (int)ofMap(ofNoise(cos(base_deg * DEG_TO_RAD) * 0.8, sin(base_deg * DEG_TO_RAD) * 0.8, this->noise_step), 0, 1, -360, 360);

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

ofPath chara_path = this->font.getCharacterAsPoints(this->word[(int)ofMap(deg, deg_start, deg_start + 360, 0, this->word.size())], true, false);

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

ofPushMatrix();

ofTranslate(0, 0, -300);

ofRotateX(deg);

ofFill();

ofSetColor(0);

ofBeginShape();

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

ofNextContour(true);

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

for (auto& vertex : vertices) {

glm::vec3 location = vertex / 100 * size;

location -= glm::vec3(size * 0.5, -size * 0.5, 60);

ofVertex(location);

}

ofEndShape(true);

ofNoFill();

ofSetColor(255);

ofBeginShape();

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

ofNextContour(true);

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

for (auto& vertex : vertices) {

glm::vec3 location = vertex / 100 * size;

location -= glm::vec3(size * 0.5, -size * 0.5, 60);

ofVertex(location);

}

ofEndShape(true);

ofPopMatrix();

}

ofPopMatrix();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230826

2023年8月25日2023年8月24日

凹凸. Draw by openframeworks

[ Video ]

[ About ]
凹凸.

[ 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(30);
	ofSetWindowTitle("openframeworks");

	ofBackground(39);
}

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

}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	ofSeedRandom(39);
	ofSetColor(255);
	ofNoFill();
	for (int deg = 0; deg < 360; deg += 30) {

		ofPushMatrix();
		ofRotate(deg);

		auto base_location = glm::vec2(0, -80);
		auto target_location = glm::vec2(0, -340);
		auto distance = target_location - base_location;
		auto len = glm::length(distance);
		auto noise_seed = ofRandom(1000);

		ofBeginShape();
		for (int d = 0; d <= len; d += 1) {

			auto location = base_location + glm::normalize(distance) * d;

			auto gap = abs(len * 0.5 - d);
			auto power = gap < len * 0.35 ? 1 : ofMap(gap, len * 0.35, len * 0.5, 1, 0);

			auto noise_x = ofMap(ofNoise(noise_seed, location.x * 0.1, location.y * 0.015 + ofGetFrameNum() * 0.06), 0, 1, -45, 45);
			int x = (int)(noise_x * power) / 10 * 10;
			location += glm::vec2(x, 0);

			ofVertex(location);
		}
		ofEndShape();

		ofPopMatrix();
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(39);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

ofSeedRandom(39);

ofSetColor(255);

ofNoFill();

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

ofPushMatrix();

ofRotate(deg);

auto base_location = glm::vec2(0, -80);

auto target_location = glm::vec2(0, -340);

auto distance = target_location - base_location;

auto len = glm::length(distance);

auto noise_seed = ofRandom(1000);

ofBeginShape();

for (int d = 0; d <= len; d += 1) {

auto location = base_location + glm::normalize(distance) * d;

auto gap = abs(len * 0.5 - d);

auto power = gap < len * 0.35 ? 1 : ofMap(gap, len * 0.35, len * 0.5, 1, 0);

auto noise_x = ofMap(ofNoise(noise_seed, location.x * 0.1, location.y * 0.015 + ofGetFrameNum() * 0.06), 0, 1, -45, 45);

int x = (int)(noise_x * power) / 10 * 10;

location += glm::vec2(x, 0);

ofVertex(location);

}

ofEndShape();

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230825

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