2021年9月16日 – プログラミング de 落描き

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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());
}

100

101

102

#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

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日: 2021年9月16日

Difference in rotation axis. Draw by openFrameworks