circle – ページ 67 – プログラミング de 落描き

2020年7月19日

Flower blanket. Draw by openFrameworks

[ Video ]

[ About ]
Flower blanket.

[ 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) {};

	vector<glm::vec2> location_list;
	vector<float> radius_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 windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

vector<glm::vec2> location_list;

vector<float> radius_list;

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_MULTIPLY);

	while (this->location_list.size() < 8) {

		auto location = glm::vec2(ofRandom(140, ofGetWidth() - 140), ofRandom(140, ofGetHeight() - 140));
		auto radius = ofRandom(65, 120);
		auto flag = true;
		for (int i = 0; i < this->location_list.size(); i++) {

			if (glm::distance(location, this->location_list[i]) < this->radius_list[i] + radius) {

				flag = false;
				break;
			}
		}

		if (flag) {

			this->location_list.push_back(location);
			this->radius_list.push_back(radius);
		}
	}

	while (this->location_list.size() < 45) {

		auto location = glm::vec2(ofRandom(140, ofGetWidth() - 140), ofRandom(140, ofGetHeight() - 140));
		auto radius = ofRandom(10, 40);
		auto flag = true;
		for (int i = 0; i < this->location_list.size(); i++) {

			if (glm::distance(location, this->location_list[i]) < this->radius_list[i] + radius) {

				flag = false;
				break;
			}
		}

		if (flag) {

			this->location_list.push_back(location);
			this->radius_list.push_back(radius * 1.2);
		}
	}
}

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

	ofSeedRandom(39);
}

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

	ofColor color;
	vector<ofColor> color_list;
	vector<int> hex_list = { 0x264653, 0x2a9d8f, 0xe9c46a, 0xf4a261, 0xe76f51 };
	for (auto hex : hex_list) {

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

	for (int i = 0; i < this->location_list.size(); i++) {

		ofPushMatrix();
		ofTranslate(this->location_list[i]);

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

			auto noise_seed_deg = ofRandom(1000);
			auto noise_seed_radius = ofRandom(1000);
			int frame_param = ofRandom(1000);

			vector<glm::vec2> vertices;
			for (int m = 0; m < 15; m++) {

				auto noise_deg = ofMap(ofNoise(noise_seed_deg, (frame_param + ofGetFrameNum() + m) * 0.002), 0, 1, -360, 360);
				auto noise_radius = ofMap(ofNoise(noise_seed_radius, (frame_param + ofGetFrameNum() + m) * 0.02), 0, 1, this->radius_list[i] * -1, this->radius_list[i]);
				vertices.push_back(glm::vec2(noise_radius * cos(noise_deg * DEG_TO_RAD), noise_radius * sin(noise_deg * DEG_TO_RAD)));
			}

			ofSetColor(color_list[k]);
			for (int m = 0; m < 10; m++) {

				ofRotateZ(36);

				ofBeginShape();
				ofVertices(vertices);
				ofEndShape();
			}
		}

		ofPopMatrix();
	}
}

//--------------------------------------------------------------
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);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_MULTIPLY);

while (this->location_list.size() < 8) {

auto location = glm::vec2(ofRandom(140, ofGetWidth() - 140), ofRandom(140, ofGetHeight() - 140));

auto radius = ofRandom(65, 120);

auto flag = true;

for (int i = 0; i < this->location_list.size(); i++) {

if (glm::distance(location, this->location_list[i]) < this->radius_list[i] + radius) {

flag = false;

break;

}

if (flag) {

this->location_list.push_back(location);

this->radius_list.push_back(radius);

}

while (this->location_list.size() < 45) {

auto location = glm::vec2(ofRandom(140, ofGetWidth() - 140), ofRandom(140, ofGetHeight() - 140));

auto radius = ofRandom(10, 40);

auto flag = true;

for (int i = 0; i < this->location_list.size(); i++) {

if (glm::distance(location, this->location_list[i]) < this->radius_list[i] + radius) {

flag = false;

break;

}

if (flag) {

this->location_list.push_back(location);

this->radius_list.push_back(radius * 1.2);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofColor color;

vector<ofColor> color_list;

vector<int> hex_list = { 0x264653, 0x2a9d8f, 0xe9c46a, 0xf4a261, 0xe76f51 };

for (auto hex : hex_list) {

color.setHex(hex);

color_list.push_back(color);

}

for (int i = 0; i < this->location_list.size(); i++) {

ofPushMatrix();

ofTranslate(this->location_list[i]);

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

auto noise_seed_deg = ofRandom(1000);

auto noise_seed_radius = ofRandom(1000);

int frame_param = ofRandom(1000);

vector<glm::vec2> vertices;

for (int m = 0; m < 15; m++) {

auto noise_deg = ofMap(ofNoise(noise_seed_deg, (frame_param + ofGetFrameNum() + m) * 0.002), 0, 1, -360, 360);

auto noise_radius = ofMap(ofNoise(noise_seed_radius, (frame_param + ofGetFrameNum() + m) * 0.02), 0, 1, this->radius_list[i] * -1, this->radius_list[i]);

vertices.push_back(glm::vec2(noise_radius * cos(noise_deg * DEG_TO_RAD), noise_radius * sin(noise_deg * DEG_TO_RAD)));

}

ofSetColor(color_list[k]);

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

ofRotateZ(36);

ofBeginShape();

ofVertices(vertices);

ofEndShape();

}

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200719

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2020年7月12日

Duplicate multiple lines with Rotate. Draw by openFrameworks

[ Video ]

[ About ]
複数の線をRotateで複製する。

Duplicate multiple lines with Rotate.

Inspired by https://www.instagram.com/p/CCWN2ruJQru/?utm_source=ig_web_button_share_sheet

[ 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);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofSetColor(39);
	ofSetLineWidth(2);
}

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

	ofSeedRandom(39);
}

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

	for (int x = 60; x <= ofGetWidth(); x += 120) {

		for (int y = 60; y <= ofGetHeight(); y += 120) {

			ofPushMatrix();
			ofTranslate(x, y);

			for (int k = 0; k < 5; k++) {

				auto noise_seed_deg = ofRandom(1000);
				auto noise_seed_radius = ofRandom(1000);

				vector<glm::vec2> vertices;
				for (int i = 0; i < 20; i++) {

					auto noise_deg = ofMap(ofNoise(noise_seed_deg, (ofGetFrameNum() + i) * 0.001), 0, 1, -360, 360);
					auto noise_radius = ofMap(ofNoise(noise_seed_radius, (ofGetFrameNum() + i) * 0.01), 0, 1, -50, 50);
					vertices.push_back(glm::vec2(noise_radius * cos(noise_deg * DEG_TO_RAD), noise_radius * sin(noise_deg * DEG_TO_RAD)));
				}

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

					ofRotateZ(36);

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

			ofPopMatrix();
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetColor(39);

ofSetLineWidth(2);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

for (int x = 60; x <= ofGetWidth(); x += 120) {

for (int y = 60; y <= ofGetHeight(); y += 120) {

ofPushMatrix();

ofTranslate(x, y);

for (int k = 0; k < 5; k++) {

auto noise_seed_deg = ofRandom(1000);

auto noise_seed_radius = ofRandom(1000);

vector<glm::vec2> vertices;

for (int i = 0; i < 20; i++) {

auto noise_deg = ofMap(ofNoise(noise_seed_deg, (ofGetFrameNum() + i) * 0.001), 0, 1, -360, 360);

auto noise_radius = ofMap(ofNoise(noise_seed_radius, (ofGetFrameNum() + i) * 0.01), 0, 1, -50, 50);

vertices.push_back(glm::vec2(noise_radius * cos(noise_deg * DEG_TO_RAD), noise_radius * sin(noise_deg * DEG_TO_RAD)));

}

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

ofRotateZ(36);

ofNoFill();

ofBeginShape();

ofVertices(vertices);

ofEndShape();

}

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200712

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2020年6月28日

Draw a circle with Bezier curves. Draw by openFrameworks

[ Video ]

[ About ]
ベジェ曲線で円を描く。

Draw a circle with Bezier curves.

[ 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);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofSetColor(39);
}

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

}

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

	int radius = 100;
	float handle_len = radius * 0.5522;
	int number_of_location = 4;
	int deg_span = 360 / number_of_location;

	for (int x = 200; x <= ofGetWidth(); x += 320) {

		for (int y = 200; y <= ofGetHeight(); y += 320) {

			vector<glm::vec2> location_list;
			vector<float> deg_list;
			for (int deg = 0; deg < 360; deg += deg_span) {

				location_list.push_back(glm::vec2(x + radius * cos(deg * DEG_TO_RAD), y + radius * sin(deg * DEG_TO_RAD)));
				deg_list.push_back(deg + 90);
			}

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

				deg_list[i] += ofMap(ofNoise(glm::vec3(location_list[i], ofGetFrameNum() * 0.01)), 0, 1, -180, 180);
			}

			ofNoFill();
			ofSetLineWidth(2);

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

				int n = (i + 1) % location_list.size();

				ofVertex(location_list[i]);
				ofBezierVertex(
					location_list[i] + glm::vec2(handle_len * cos(deg_list[i] * DEG_TO_RAD), handle_len * sin(deg_list[i] * DEG_TO_RAD)),
					location_list[n] + glm::vec2(handle_len * cos((deg_list[n] + 180) * DEG_TO_RAD), handle_len * sin((deg_list[n] + 180) * DEG_TO_RAD)),
					location_list[n]);
			}
			ofEndShape();

			ofFill();
			ofSetLineWidth(0.5);

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

				ofDrawCircle(location_list[i], 5);

				ofDrawCircle(location_list[i] + glm::vec2(handle_len * cos(deg_list[i] * DEG_TO_RAD), handle_len * sin(deg_list[i] * DEG_TO_RAD)), 3);
				ofDrawCircle(location_list[i] + glm::vec2(handle_len * cos((deg_list[i] + 180) * DEG_TO_RAD), handle_len * sin((deg_list[i] + 180) * DEG_TO_RAD)), 3);

				ofDrawLine(location_list[i], location_list[i] + glm::vec2(handle_len * cos(deg_list[i] * DEG_TO_RAD), handle_len * sin(deg_list[i] * DEG_TO_RAD)));
				ofDrawLine(location_list[i], location_list[i] + glm::vec2(handle_len * cos((deg_list[i] + 180) * DEG_TO_RAD), handle_len * sin((deg_list[i] + 180) * DEG_TO_RAD)));
			}
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(39);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

int radius = 100;

float handle_len = radius * 0.5522;

int number_of_location = 4;

int deg_span = 360 / number_of_location;

for (int x = 200; x <= ofGetWidth(); x += 320) {

for (int y = 200; y <= ofGetHeight(); y += 320) {

vector<glm::vec2> location_list;

vector<float> deg_list;

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

location_list.push_back(glm::vec2(x + radius * cos(deg * DEG_TO_RAD), y + radius * sin(deg * DEG_TO_RAD)));

deg_list.push_back(deg + 90);

}

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

deg_list[i] += ofMap(ofNoise(glm::vec3(location_list[i], ofGetFrameNum() * 0.01)), 0, 1, -180, 180);

}

ofNoFill();

ofSetLineWidth(2);

ofBeginShape();

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

int n = (i + 1) % location_list.size();

ofVertex(location_list[i]);

ofBezierVertex(

location_list[i] + glm::vec2(handle_len * cos(deg_list[i] * DEG_TO_RAD), handle_len * sin(deg_list[i] * DEG_TO_RAD)),

location_list[n] + glm::vec2(handle_len * cos((deg_list[n] + 180) * DEG_TO_RAD), handle_len * sin((deg_list[n] + 180) * DEG_TO_RAD)),

location_list[n]);

}

ofEndShape();

ofFill();

ofSetLineWidth(0.5);

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

ofDrawCircle(location_list[i], 5);

ofDrawCircle(location_list[i] + glm::vec2(handle_len * cos(deg_list[i] * DEG_TO_RAD), handle_len * sin(deg_list[i] * DEG_TO_RAD)), 3);

ofDrawCircle(location_list[i] + glm::vec2(handle_len * cos((deg_list[i] + 180) * DEG_TO_RAD), handle_len * sin((deg_list[i] + 180) * DEG_TO_RAD)), 3);

ofDrawLine(location_list[i], location_list[i] + glm::vec2(handle_len * cos(deg_list[i] * DEG_TO_RAD), handle_len * sin(deg_list[i] * DEG_TO_RAD)));

ofDrawLine(location_list[i], location_list[i] + glm::vec2(handle_len * cos((deg_list[i] + 180) * DEG_TO_RAD), handle_len * sin((deg_list[i] + 180) * DEG_TO_RAD)));

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200628

[ほしいものリスト]
Amazon

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