add rough examples

example-atlas/addons.make

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+ofxMsdfgen

example-atlas/src/main.cpp

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+#include "ofMain.h"
+#include "ofApp.h"
+
+//========================================================================
+int main(){
+    #ifdef OF_TARGET_OPENGLES
+        ofGLESWindowSettings settings;
+        //settings.setSize(1920, 1080);
+        settings.glesVersion = 2;
+    #else
+        ofGLWindowSettings settings;
+        settings.setSize(1920, 1080);
+        settings.setGLVersion(3, 2);
+    #endif
+    ofCreateWindow(settings);
+
+    // this kicks off the running of my app
+    // can be OF_WINDOW or OF_FULLSCREEN
+    // pass in width and height too:
+    ofRunApp(new ofApp());
+}

example-atlas/src/ofApp.cpp

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+#include "ofApp.h"
+#include "ofGraphicsBaseTypes.h"
+#include "ofUtils.h"
+
+//--------------------------------------------------------------
+void ofApp::setup(){
+    string fontName = "RobotoFlex.ttf";
+    string fontPath = "data/fonts/" + fontName;
+    atlas.setup(fontPath);
+    atlasImage = atlas.getAtlasImage();
+}
+
+//--------------------------------------------------------------
+void ofApp::update(){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::draw(){
+    ofBackground(ofColor::black);
+    ofPushMatrix();
+    ofTranslate(
+        ofMap(sin(ofGetElapsedTimeMillis() * 0.0001), -1, 1, 0, ofGetWidth() - atlasImage.getWidth()),
+        ofMap(cos(ofGetElapsedTimeMillis() * 0.0001), -1, 1, 0, ofGetHeight() - atlasImage.getHeight()),
+        0);
+    atlasImage.draw(0, 0);
+    ofPopMatrix();
+}
+
+//--------------------------------------------------------------
+void ofApp::keyPressed(int key){
+    if(key == 's'){
+    }
+}
+
+//--------------------------------------------------------------
+void ofApp::keyReleased(int key){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::mouseMoved(int x, int y){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::mouseDragged(int x, int y, int button){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::mousePressed(int x, int y, int button){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::mouseReleased(int x, int y, int button){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::mouseEntered(int x, int y){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::mouseExited(int x, int y){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::windowResized(int w, int h){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::gotMessage(ofMessage msg){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::dragEvent(ofDragInfo dragInfo){
+
+}

example-atlas/src/ofApp.h

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+#pragma once
+
+#include "Atlas.h"
+#include "ofMain.h"
+#include "ofxMsdfgen.h"
+
+using namespace msdfgen;
+
+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 mouseEntered(int x, int y);
+        void mouseExited(int x, int y);
+        void windowResized(int w, int h);
+        void dragEvent(ofDragInfo dragInfo);
+        void gotMessage(ofMessage msg);
+
+        ofxMsdfgen::Atlas atlas;
+        ofImage atlasImage;
+};

example/addons.make

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+ofxMsdfgen

example/src/main.cpp

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+#include "ofMain.h"
+#include "ofApp.h"
+
+//========================================================================
+int main(){
+    #ifdef OF_TARGET_OPENGLES
+        ofGLESWindowSettings settings;
+        //settings.setSize(1920, 1080);
+        settings.glesVersion = 2;
+    #else
+        ofGLWindowSettings settings;
+        settings.setSize(1920, 1080);
+        settings.setGLVersion(3, 2);
+    #endif
+    ofCreateWindow(settings);
+
+    // this kicks off the running of my app
+    // can be OF_WINDOW or OF_FULLSCREEN
+    // pass in width and height too:
+    ofRunApp(new ofApp());
+}

example/src/ofApp.cpp

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+#include "ofApp.h"
+#include "generator-config.h"
+#include "ofGraphics.h"
+#include "ofUtils.h"
+#include "save-bmp.h"
+
+//--------------------------------------------------------------
+void ofApp::setup(){
+    string fontName = "RobotoFlex.ttf";
+    fontPath = "data/fonts/" + fontName;
+
+    int dimension = 64;
+    int width = dimension;
+    int height = dimension;
+
+    FreetypeHandle * ft = initializeFreetype();
+    if(ft){
+        const char * fontPath_c_str = fontPath.c_str();
+        FontHandle * font = loadFont(ft, fontPath_c_str);
+        if(font){
+            Shape shape;
+            if(loadGlyph(shape, font, 'a')){
+                shape.normalize();
+                Shape::Bounds bounds = shape.getBounds();
+
+                double pxRange = 2;
+                Vector2 translate;
+                Vector2 scale = 1;
+                double range = 1;
+                double avgScale = .5 * (scale.x + scale.y);
+
+                // Auto-frame
+                double l = bounds.l, b = bounds.b, r = bounds.r, t = bounds.t;
+                Vector2 frame(width, height);
+                double m = .5 + (double)0;
+                frame -= 2 * m * pxRange;
+                if(l >= r || b >= t){
+                    l = 0, b = 0, r = 1, t = 1;
+                }
+                if(frame.x <= 0 || frame.y <= 0){
+                    ofLogError("Cannot fit the specified pixel range.");
+                }
+                Vector2 dims(r - l, t - b);
+                if(dims.x * frame.y < dims.y * frame.x){
+                    translate.set(.5 * (frame.x / frame.y * dims.y - dims.x) - l, -b);
+                    scale = avgScale = frame.y / dims.y;
+                }else{
+                    translate.set(-l, .5 * (frame.y / frame.x * dims.x - dims.y) - b);
+                    scale = avgScale = frame.x / dims.x;
+                }
+                translate += m * pxRange / scale;
+                range = pxRange / std::min(scale.x, scale.y);
+
+                //                      max. angle
+                edgeColoringSimple(shape, 3.0);
+                //           image width, height
+                Bitmap <float, 3> msdf(dimension, dimension);
+                msdfgen::Projection projection(scale, translate);
+                msdfgen::MSDFGeneratorConfig generatorConfig;
+                generateMSDF(msdf, shape, projection, range, generatorConfig);
+
+                ofxMsdfgen::toOfImage(msdf, image);
+
+                msdfgen::saveBmp(msdf, "data/outpurt.bmp");
+
+            }
+            destroyFont(font);
+        }
+        deinitializeFreetype(ft);
+    }
+
+    shader.load("ofxMsdfgen/shaders/simple/GL3/shader");
+}
+
+//--------------------------------------------------------------
+void ofApp::update(){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::draw(){
+    ofBackground(ofColor::lightGreen);
+
+    shader.begin();
+    float pxRange = ofMap(sin(ofGetElapsedTimeMillis() * 0.001),
+                          -1, 1,
+                          1, 100);
+    shader.setUniform1f("pxRange", pxRange);
+    shader.setUniformTexture("msdf", image.getTexture(), 0);
+    shader.setUniform4f("fontColor", ofFloatColor::white);
+
+    image.draw(0, 0, ofGetHeight(), ofGetHeight());
+
+    shader.end();
+    ofPushStyle();
+    ofSetColor(ofColor::purple);
+    ofDrawBitmapString("pxRange: " + ofToString(pxRange), 20, 20);
+    ofPopStyle();
+
+    image.draw(0, 0, 64 * 4, 64 * 4);
+}
+
+//--------------------------------------------------------------
+void ofApp::keyPressed(int key){
+    if(key == 's'){
+        ofSaveImage(image, "output.png");
+        ofSaveImage(image, "output.jpg");
+        image.save("outerput.png");
+    }
+}
+
+//--------------------------------------------------------------
+void ofApp::keyReleased(int key){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::mouseMoved(int x, int y){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::mouseDragged(int x, int y, int button){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::mousePressed(int x, int y, int button){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::mouseReleased(int x, int y, int button){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::mouseEntered(int x, int y){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::mouseExited(int x, int y){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::windowResized(int w, int h){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::gotMessage(ofMessage msg){
+
+}
+
+//--------------------------------------------------------------
+void ofApp::dragEvent(ofDragInfo dragInfo){
+
+}

example/src/ofApp.h

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+#pragma once
+
+#include "ofMain.h"
+#include "ofxMsdfgen.h"
+
+using namespace msdfgen;
+
+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 mouseEntered(int x, int y);
+        void mouseExited(int x, int y);
+        void windowResized(int w, int h);
+        void dragEvent(ofDragInfo dragInfo);
+        void gotMessage(ofMessage msg);
+
+        string fontPath;
+        ofImage image;
+        ofFloatImage fimage;
+        ofShader shader;
+};