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artificielartificiel
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ofRandom (#7598)
#changelog #utils
1 parent af60234 commit 16d7da1

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Lines changed: 2150 additions & 12 deletions

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‎apps/devApps/random explorer/addons.make‎

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ofxGui

‎apps/devApps/random explorer/src/Dist.hpp‎

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#ifndef DIST_HPP
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#define DIST_HPP
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#include "ofMain.h"
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struct Dist {
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inline static string base_url_{ "https://en.cppreference.com/w/cpp/numeric/random/" };
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string url_;
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ofParameterGroup parameters_;
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ofColor color_ {128,128,128};
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std::string info_;
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glm::vec2 range_ { };
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bool discrete_ { false };
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size_t underflow_;
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size_t overflow_;
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std::size_t max_ { 0 };
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float cost_ { 0.0f };
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virtual auto gen() -> void = 0;
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virtual auto clear() -> void = 0;
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virtual auto compile() -> void = 0;
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virtual auto draw(float x, float y, float w, float h) -> void = 0;
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virtual ~Dist() = default;
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Dist() {};
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};
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template <typename T>
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struct ConcreteDist: public Dist {
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std::vector<T> data_;
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std::function<T()> gen_;
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std::vector<T> bins_;
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int autorot_ { 0 };
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ofParameter<void> url_button_;
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ConcreteDist(std::string label,
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std::string info,
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std::string url,
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std::vector<ofAbstractParameter *> params,
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std::function<T()> gen,
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std::size_t num_bins = 101,
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glm::vec2 range = {0, 100},
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bool discrete = false )
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: gen_(gen)
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{
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url_ = base_url_+url;
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info_ = info;
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range_ = range;
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discrete_ = discrete;
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bins_.resize(num_bins);
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parameters_.setName(label);
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for (auto & p: params) parameters_.add(*p);
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url_button_.set("click for reference");
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url_button_.addListener(this, &ConcreteDist::open_url);
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parameters_.add(url_button_);
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//panel_.getControl("seed")->setTextColor(ofColor::green);
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}
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auto open_url() {
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ofLaunchBrowser(url_);
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}
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auto gen() -> void override {
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data_.push_back(gen_());
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}
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auto clear() -> void override {
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overflow_ = 0;
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underflow_ = 0;
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data_.clear();
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std::fill(bins_.begin(), bins_.end(), T{0});
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}
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auto compile() -> void override {
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// histograms non-vecs only
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if constexpr (std::is_arithmetic_v<T>) {
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float divisor = (range_.y-range_.x)/float(bins_.size()-1);
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for (auto & v: data_) {
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v /= divisor;
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if (v < range_.x) {
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underflow_++;
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} else if (v >= bins_.size()) {
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overflow_++;
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} else {
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bins_.at(v) = bins_.at(v)+1;
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}
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}
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max_ = 0.0;
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for (size_t i=0;i<bins_.size(); i++) {
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if (bins_.at(i) > max_) max_ = bins_.at(i);
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}
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} else {
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// no histograms for vecN
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}
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}
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auto draw(float x, float y, float w, float h) -> void override {
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ofPushStyle();
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ofPushMatrix();
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{
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ofTranslate(x,y);
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ofSetColor(color_);
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ofDrawRectangle(0,0,w,h);
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ofSetColor(ofColor::darkRed);
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if (underflow_) ofDrawBitmapString("undershoot: " + ofToString(underflow_), w+5, 58);
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if (overflow_) ofDrawBitmapString("overshoot: " + ofToString(overflow_), w+5, 74);
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ofSetColor(192,192,192,255);
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ofDrawBitmapString(info_, w+5, 35);
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ofSetColor(255,255,255,255);
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ofDrawBitmapStringHighlight(parameters_.getName() + " " + ofToString(cost_*1000, 2, 5)+"ms", w+5, 12);
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if constexpr (std::is_arithmetic_v<T>) {
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auto p = 0.0f;
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double incr = w/bins_.size();
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auto fact = h/max_;
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if (discrete_) {
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// line bars for discrete
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ofTranslate(incr/2, 0);
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for (auto y: bins_) {
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ofDrawLine(0, h, 0, h-float(y)*fact);
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if (y==0) {
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ofNoFill();
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ofDrawCircle(0, h-float(y)*fact, 2.5);
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ofFill();
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} else {
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ofDrawCircle(0, h-float(y)*fact, 3);
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}
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ofTranslate(int(incr), 0);
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}
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} else {
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// integral for reals
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ofPolyline line;
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line.addVertex(0,h-bins_[0]*fact);
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for (auto y: bins_) line.lineTo(p+=incr, h-float(y)*fact);
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line.draw();
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}
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} else if constexpr (std::is_same_v<T, glm::vec2>) {
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ofSetColor(255,255,255,96);
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for (const auto & d: data_) ofDrawCircle(d, .5);
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} else if constexpr (std::is_same_v<T, glm::vec3>) {
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ofSetColor(255,255,255,32);
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of3dPrimitive prim;
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prim.getMesh().getVertices() = data_;
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prim.getMesh().setMode(OF_PRIMITIVE_POINTS);
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prim.rotateDeg(70,{ 0.2, 0.3, 0.5 }); // just some perspective
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ofPushMatrix();
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{
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ofTranslate(w * 0.2, h * 0.2);
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prim.drawWireframe();
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prim.drawAxes(w * 0.5);
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}
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ofPopMatrix();
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} else {
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ofDrawBitmapString("unsupported visualisation", 10,10);
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}
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}
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ofPopMatrix();
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ofPopStyle();
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}
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};
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struct DistGroup {
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std::vector<std::shared_ptr<Dist>> dists_;
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ofxPanel panel_;
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DistGroup(std::vector<std::shared_ptr<Dist>> dists): dists_(dists) { }
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auto draw(std::string label, int square, int gap) {
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panel_.draw();
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ofPushMatrix();
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{
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ofTranslate(panel_.getPosition());
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ofDrawBitmapString(label,0,-10);
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ofTranslate(panel_.getWidth()+20,0);
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for (const auto & dist: dists_) {
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dist->draw(0,0,square,square);
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ofTranslate(0,square + gap);
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}
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}
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ofPopMatrix();
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}
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};
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#endif /* DIST_HPP */

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