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934 lines (809 loc) 路 32 KB
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//
// Created by Alan Freitas on 2020-07-03.
//
#include <map>
#include <sstream>
#include <algorithm>
#include <matplot/backend/backend_registry.h>
#include <matplot/core/figure.h>
#include <matplot/util/common.h>
#include <matplot/core/axes.h>
namespace matplot {
figure::figure() : figure(1, true) {}
figure::figure(bool quiet_mode) : figure(1,quiet_mode) {}
figure::figure(size_t index) : figure(index, true) {}
figure::figure(size_t index, bool quiet_mode) : number_(index), quiet_mode_(quiet_mode) {
backend_ = create_default_backend();
}
#ifdef MATPLOT_BUILD_FOR_DOCUMENTATION_IMAGES
figure::~figure() {
save("example.svg","svg");
}
#else
figure::~figure() = default;
#endif
void figure::include_comment(const std::string &text) {
backend_->include_comment(text);
}
void figure::run_command(const std::string &command) {
backend_->run_command(command);
}
void figure::draw() {
// we cannot call draw if we are already drawing
// this could create infinite loops
if (backend_ == nullptr || is_plotting_) {
return;
}
// Avoid infinite loops if the draw function calls
// "touch" for some reason
is_plotting_ = true;
// There are two different strategies
// Gnuplot backends do not rely on vertices
// because that would be very ineficient
// So we unfortunately need a different strategy
// for gnuplot
if (!backend_->consumes_gnuplot_commands()) {
send_draw_commands();
} else {
send_gnuplot_draw_commands();
}
backend_->render_data();
is_plotting_ = false;
}
void figure::send_draw_commands() {
// This mode is not implemented yet
// Send some draw commands to the backend here
// ...
// Iterate children axes
// Ask them to send their draw commands to the backend
}
void figure::send_gnuplot_draw_commands() {
include_comment("Setting figure properties");
run_figure_properties_command();
if (children_.empty()) {
include_comment("An empty plot");
plot_empty_plot();
} else {
include_comment("Start multiplot");
run_multiplot_command();
bool first = true;
include_comment("Window background");
if (backend_->output().empty()) {
run_window_color_command();
}
size_t index = 1;
for (auto &axes : children_) {
include_comment("Plotting axes - " + num2str(index++));
if (!first) {
include_comment(" Reset object from multiplot - " + num2str(index-2));
run_command(" reset");
}
axes->run_commands();
if (first) {
include_comment("Unset window background so it does repeat on other subplots");
run_unset_window_color_command();
first = false;
}
}
if (children_.size() > 1) {
include_comment("Multiplots don't work well with the mouse in Gnuplot");
run_command("unset mouse");
}
include_comment("Finalizing the multiplot");
run_command("unset multiplot");
}
}
void figure::show() {
draw();
backend_->wait();
}
void figure::touch() {
if (!quiet_mode_) {
draw();
}
}
void figure::flush_commands() {
// render data
backend_->render_data();
}
bool figure::save(const std::string& filename, const std::string& format) {
try {
auto poutput = backend_->output();
auto pformat = backend_->output_format();
if (backend_->output(filename, format)) {
draw();
}
backend_->output(poutput, pformat);
return true;
} catch(...) {
return false;
}
}
bool figure::save(const std::string& filename) {
try {
auto pout = backend_->output();
auto pformat = backend_->output_format();
if (backend_->output(filename)) {
draw();
}
backend_->output(pout, pformat);
return true;
} catch (...) {
return false;
}
}
figure::operator bool() const {
return backend_ != nullptr;
}
void figure::plot_empty_plot() {
// Plot something out of yrange
run_command("set yrange [0:1]");
run_command("set xrange [0:1]");
run_command("set key off");
run_command("plot 2 with lines");
}
void figure::name(const std::string& name) {
name_ = name;
touch();
}
std::string figure::name() const {
return name_;
}
void figure::color(const std::array<float,3>& c) {
color_ = {0,c[0],c[1],c[2]};
touch();
}
void figure::color(const color_array& c) {
color_ = c;
custom_color_ = true;
touch();
}
void figure::color(const std::string& c) {
color(to_array(string_to_color(c)));
}
void figure::color(const enum color& c) {
color(to_array(c));
}
color_array figure::color() const {
return color_;
}
void figure::position(const std::array<unsigned,4>& c) {
backend_->position_x(c[0]);
backend_->position_y(c[1]);
backend_->width(c[2]);
backend_->height(c[3]);
touch();
}
unsigned figure::x_position() const {
// get x_position from the backend because the user
// might have changed it manually by dragging the
// window
return backend_->position_x();
}
void figure::x_position(unsigned x) {
backend_->position_x(x);
touch();
}
unsigned figure::y_position() const {
// get y_position from the backend because the user
// might have changed it manually by dragging the
// window
return backend_->position_y();
}
void figure::y_position(unsigned y) {
backend_->position_y(y);
touch();
}
unsigned figure::width() const {
// get width from the backend because the user
// might have changed it manually by dragging the
// window
return backend_->width();
}
void figure::width(unsigned w) {
backend_->width(w);
touch();
}
unsigned figure::height() const {
// get height from the backend because the user
// might have changed it manually by dragging the
// window
return backend_->height();
}
void figure::height(unsigned h) {
backend_->height(h);
touch();
}
void figure::position(unsigned x, unsigned y, unsigned w, unsigned h) {
position({x,y,w,h});
}
void figure::position(unsigned x, unsigned y) {
backend_->position_x(x);
backend_->position_y(y);
touch();
}
void figure::size(unsigned w, unsigned h) {
backend_->width(w);
backend_->height(h);
touch();
}
std::array<unsigned,4> figure::position() const {
return {x_position(),y_position(),width(),height()};
}
size_t figure::number() const {
return number_;
}
void figure::number_title(bool number_title) {
number_title_ = number_title;
touch();
}
bool figure::number_title() const {
return number_title_;
}
axes_handle figure::add_axes(bool replace_if_overlap) {
axes_handle h = std::make_shared<class axes>(this);
return this->add_axes(h, replace_if_overlap, replace_if_overlap);
}
axes_handle figure::add_axes(std::array<float,4> position) {
axes_handle h = std::make_shared<class axes>(this, position);
h->box(true);
return this->add_axes(h, false, true);
}
axes_handle figure::add_axes(axes_handle h, bool replace_if_overlap, bool replace_if_same_position) {
auto it = std::find_if(children_.begin(), children_.end(), [&h](const auto& child) {
return child->position() == h->position();
});
if (it != children_.end()) {
if (replace_if_same_position) {
children_.erase(it);
} else {
return *it;
}
}
if (replace_if_overlap) {
// look for overlap
auto overlap = [&h](const axes_handle& x) {
const float x_min = x->x_origin();
const float x_max = x->x_origin() + x->width();
const float hx_min = h->x_origin();
const float hx_max = h->x_origin() + h->width();
const float y_min = x->y_origin();
const float y_max = x->y_origin() + x->height();
const float hy_min = h->y_origin();
const float hy_max = h->y_origin() + h->height();
// for dimensions 0 and 1, check min and max intersection
return !(x_min > hx_max || hx_min > x_max || y_min > hy_max || hy_min > y_max);
};
auto overlap_it = std::remove_if(children_.begin(), children_.end(), overlap);
children_.erase(overlap_it, children_.end());
}
children_.emplace_back(h);
current_axes_ = children_.back();
current_axes_->parent(this);
touch();
return h;
}
std::array<float,4> figure::calculate_subplot_position(size_t rows, size_t cols, size_t plot_id) {
if (plot_id >= rows * cols) {
plot_id = plot_id % (rows * cols);
}
size_t row = rows - plot_id / cols - 1;
size_t col = plot_id % cols;
constexpr size_t row_width = 1; // max(row) - min(row) + 1
constexpr size_t col_width = 1; // max(col) - min(col) + 1
const size_t min_row = row;
const size_t min_col = col;
const size_t max_row = row;
const size_t max_col = col;
float width = axes::default_axes_position[2] / (static_cast<float>(cols) - axes::default_subplot_inset[0] - axes::default_subplot_inset[2]); // 1,0197
float height = axes::default_axes_position[3] / (static_cast<float>(rows) - axes::default_subplot_inset[1] - axes::default_subplot_inset[3]); // 0,4738
std::array<float, 4> subplot_inset{axes::default_subplot_inset[0]*width,
axes::default_subplot_inset[1]*height,
axes::default_subplot_inset[2]*width,
axes::default_subplot_inset[3]*height};
std::array<float, 4> outer_pos{axes::default_axes_position[0] + min_col * width - subplot_inset[0],
axes::default_axes_position[1] + min_row * height - subplot_inset[1],
width * col_width,
height * row_width};
if (min_col == 0) {
subplot_inset[0] = axes::default_axes_position[0];
outer_pos[2] = outer_pos[0] + outer_pos[2];
outer_pos[0] = 0;
}
if (min_row == 0) {
subplot_inset[1] = axes::default_axes_position[1];
outer_pos[3] = outer_pos[1] + outer_pos[3];
outer_pos[1] = 0;
}
if (max_col == cols - 1) {
subplot_inset[2] = std::max(0.f, 1.f - axes::default_axes_position[0] - axes::default_axes_position[2]);
outer_pos[2] = 1 - outer_pos[0];
}
if (max_row == rows - 1) {
subplot_inset[3] = std::max(0., 1. - axes::default_axes_position[1] - axes::default_axes_position[3]);
outer_pos[3] = 1 - outer_pos[1];
}
std::array<float,4> position = {outer_pos[0] + subplot_inset[0],
outer_pos[1] + subplot_inset[1],
outer_pos[2] - subplot_inset[0] - subplot_inset[2],
outer_pos[3] - subplot_inset[1] - subplot_inset[3]};
return position;
}
axes_handle figure::add_subplot(size_t rows, size_t cols, size_t plot_id, bool replace_if_same_position) {
if (rows == 1 && cols == 1 && plot_id == 0) {
return add_axes();
}
return this->add_subplot(calculate_subplot_position(rows, cols, plot_id), replace_if_same_position);
}
axes_handle figure::add_subplot(size_t rows, size_t cols, size_t plot_id, axes_handle ax) {
ax->position(calculate_subplot_position(rows,cols,plot_id));
auto it = std::find(children_.begin(), children_.end(), ax);
if (it == children_.end()) {
return add_axes(ax, true, false);
}
return ax;
}
axes_handle figure::add_subplot(size_t rows, size_t cols, std::initializer_list<size_t> positions, bool replace_if_same_position) {
if (rows == 1 && cols == 1 && positions.size() == 1 && *positions.begin() == 1) {
return this->add_axes(true);
}
std::vector plot_ids = std::vector(positions);
size_t max_plot_id = *std::max_element(plot_ids.begin(), plot_ids.end());
if (max_plot_id >= rows * cols) {
throw std::invalid_argument("Plot index is too large");
}
std::vector<size_t> row(plot_ids.size());
std::vector<size_t> col(plot_ids.size());
for (size_t i = 0; i < plot_ids.size(); ++i) {
row[i] = rows - plot_ids[i] / cols - 1;
col[i] = plot_ids[i] % cols;
}
const size_t min_row = *std::min_element(row.begin(), row.end());
const size_t min_col = *std::min_element(col.begin(), col.end());
const size_t max_row = *std::max_element(row.begin(), row.end());
const size_t max_col = *std::max_element(col.begin(), col.end());
const size_t row_width = max_row - min_row + 1;
const size_t col_width = max_col - min_col + 1;
float width = axes::default_axes_position[2] / (static_cast<float>(cols) - axes::default_subplot_inset[0] - axes::default_subplot_inset[2]); // 1,0197
float height = axes::default_axes_position[3] / (static_cast<float>(rows) - axes::default_subplot_inset[1] - axes::default_subplot_inset[3]); // 0,4738
std::array<float, 4> subplot_inset{axes::default_subplot_inset[0]*width,
axes::default_subplot_inset[1]*height,
axes::default_subplot_inset[2]*width,
axes::default_subplot_inset[3]*height};
std::array<float, 4> outer_pos{axes::default_axes_position[0] + min_col * width - subplot_inset[0],
axes::default_axes_position[1] + min_row * height - subplot_inset[1],
width * col_width,
height * row_width};
if (min_col == 0) {
subplot_inset[0] = axes::default_axes_position[0];
outer_pos[2] = outer_pos[0] + outer_pos[2];
outer_pos[0] = 0;
}
if (min_row == 0) {
subplot_inset[1] = axes::default_axes_position[1];
outer_pos[3] = outer_pos[1] + outer_pos[3];
outer_pos[1] = 0;
}
if (max_col == cols - 1) {
subplot_inset[2] = std::max(0.f, 1.f - axes::default_axes_position[0] - axes::default_axes_position[2]);
outer_pos[2] = 1 - outer_pos[0];
}
if (max_row == rows - 1) {
subplot_inset[3] = std::max(0., 1. - axes::default_axes_position[1] - axes::default_axes_position[3]);
outer_pos[3] = 1 - outer_pos[1];
}
std::array<float,4> position = {outer_pos[0] + subplot_inset[0],
outer_pos[1] + subplot_inset[1],
outer_pos[2] - subplot_inset[0] - subplot_inset[2],
outer_pos[3] - subplot_inset[1] - subplot_inset[3]};
return this->add_subplot(position, replace_if_same_position);
}
axes_handle figure::add_subplot(std::array<float,4> position, bool replace_if_same_position) {
axes_handle h = std::make_shared<class axes>(this, position);
h->box(true);
return this->add_axes(h, true, replace_if_same_position);
}
void figure::tiledlayout(size_t rows, size_t cols) {
tiledlayout_rows_ = rows;
tiledlayout_cols_ = cols;
current_tile_index_ = 0;
tiledlayout_flow_ = rows == 1 && cols == 1;
children_.clear();
}
axes_handle figure::nexttile() {
const bool next_tile_fits = current_tile_index_ < tiledlayout_rows_ * tiledlayout_cols_;
if (next_tile_fits || !tiledlayout_flow_) {
if (!next_tile_fits) {
current_tile_index_ -= tiledlayout_rows_ * tiledlayout_cols_;
}
axes_handle h = this->add_subplot(tiledlayout_rows_, tiledlayout_cols_, current_tile_index_);
current_tile_index_++;
return h;
} else {
if (tiledlayout_rows_ <= tiledlayout_cols_) {
++tiledlayout_rows_;
} else {
++tiledlayout_cols_;
}
// reposition existing axes, assuming they are all independent tiles
auto f = gcf();
for (size_t j = 0; j < f->children().size(); ++j) {
auto p = calculate_subplot_position(tiledlayout_rows_, tiledlayout_cols_, j);
f->children()[j]->position(p);
}
return nexttile();
}
}
axes_handle figure::nexttile(size_t index) {
current_tile_index_ = index;
return nexttile();
}
axes_handle figure::current_axes() {
axes_handle h = current_axes_;
if (!h) {
h = this->add_axes();
}
return h;
}
axes_handle figure::current_axes() const {
return current_axes_;
}
void figure::current_axes(const axes_handle ¤t_axes) {
current_axes_ = current_axes;
// bring axes to front
auto it = std::find(children_.begin(), children_.end(), current_axes);
if (it != children_.end()) {
if (*it != children_.back()) {
std::swap(*it, children_.back());
touch();
}
}
}
void figure::run_figure_properties_command() {
run_command("reset");
run_terminal_init_command();
if (children_.empty()) {
run_command("unset border");
run_command("unset xtics");
run_command("unset ytics");
}
if (children_.empty()) {
run_window_color_command();
}
}
void figure::run_terminal_init_command() {
std::stringstream ss;
auto& terminal = backend_->output_format();
ss << "set terminal " + terminal;
if (terminal.empty() && backend::gnuplot::terminal_has_title_option(terminal)) {
std::string title;
if (number_title_) {
title += "Figure " + num2str(number_);
if (!name_.empty()) {
title += ": " + name_;
}
} else {
title = name_;
}
ss << " title \"" << escape(title) << "\"";
run_command(ss.str());
}
if (backend::gnuplot::terminal_has_size_option(terminal)) {
ss << " size " << num2str(width()) << "," << num2str(height());
}
if (backend::gnuplot::terminal_has_enhanced_option(terminal)) {
ss << " enhanced";
}
if (backend::gnuplot::terminal_has_color_option(terminal)) {
ss << " color";
}
if (backend::gnuplot::terminal_has_font_option(terminal)) {
ss << " font \"" + escape(font_) + "," + num2str(unsigned(font_size_)) + "\"";
}
run_command(ss.str());
const auto& output = backend_->output();
if (!output.empty()) {
run_command("set output \"" + escape(output) + "\"");
}
}
void figure::run_window_color_command() {
// In gnuplot 5.5 we have the wall function to set the axes color
// with a rectangle workaround, which does not work well for 3d.
static const auto v = backend::gnuplot::gnuplot_version();
const bool has_wall_option = v.first > 5 || (v.first == 5 && v.second >=5);
// So we only plot the default background if it's not 3d or version is
// higher than 5.5. Otherwise, gnuplot won't be able to set the axes colors.
const bool three_d_is_not_a_problem = children_.empty() || !children_[0]->is_3d() || children_[0]->is_3d_map() || has_wall_option;
// If the background is custom, we plot it, but
// gnuplot will not be able to plot the axes background if it's 3d and
// its version is less than 5.5. It's the user's choice then.
const bool force_background_anyway = custom_color_;
if (title_.empty()) {
if (three_d_is_not_a_problem || force_background_anyway) {
if (to_array(color::white) != color_) {
run_command("set object 1 rectangle from screen 0,0 to screen 1,1 behind fillcolor rgb \"" + to_string(color_) + "\" fillstyle solid 1.0 noborder");
}
}
}
}
void figure::run_unset_window_color_command() {
if (custom_color_ || children_.empty() || !children_[0]->is_3d() || children_[0]->is_3d_map()) {
if (to_array(color::white) != color_) {
run_command("unset object 1");
}
}
}
void figure::run_multiplot_command() {
std::string cmd = "set multiplot";
if (!title_.empty()) {
cmd += " title \"{/:Bold " + escape(title_) + "}\"";
cmd += " font '" + font_ + "," + num2str(unsigned(font_size_ * title_font_size_multiplier_)) + "'";
cmd += " textcolor '" + to_string(title_color_) + "'";
}
run_command(cmd);
}
const std::string &figure::font() const {
return font_;
}
void figure::font(const std::string &font) {
font_ = font;
touch();
}
float figure::font_size() const {
return font_size_;
}
void figure::font_size(float font_size) {
font_size_ = font_size;
touch();
}
const std::string &figure::title() const {
return title_;
}
void figure::title(const std::string &title) {
title_ = title;
touch();
}
const color_array &figure::title_color() const {
return title_color_;
}
void figure::title_color(const color_array &title_color) {
title_color_ = title_color;
touch();
}
float figure::title_font_size_multiplier() const {
return title_font_size_multiplier_;
}
void figure::title_font_size_multiplier(float title_font_size_multiplier) {
title_font_size_multiplier_ = title_font_size_multiplier;
touch();
}
bool figure::custom_color() const {
return custom_color_;
}
void figure::custom_color(bool custom_color) {
custom_color_ = custom_color;
touch();
}
bool figure::quiet_mode() const {
return quiet_mode_;
}
void figure::quiet_mode(bool quiet_mode) {
quiet_mode_ = quiet_mode;
}
bool figure::reactive_mode() const {
return !quiet_mode_;
}
void figure::reactive_mode(bool reactive_mode) {
quiet_mode_ = !reactive_mode;
}
void figure::ion() {
quiet_mode_ = false;
}
void figure::ioff() {
quiet_mode_ = true;
}
namespace detail {
/// Map with all figure handles there are
std::map<size_t, figure_handle>& global_figure_handles() {
static std::map<size_t, figure_handle> registry;
return registry;
}
/// Global handle to the figure considered the current figure
figure_handle& current_figure_handle() {
static figure_handle cfh;
return cfh;
}
void set_current_figure_handle(figure_handle& h) {
current_figure_handle() = h;
}
/// Register a figure handler with a given index
void register_figure_handle(size_t figure_index, const figure_handle& h) {
global_figure_handles()[figure_index] = h;
}
/// Find an index for a new handler and register it there
void register_figure_handle(const figure_handle& h) {
size_t index_candidate = 1;
for (const auto& [index, figure_handle]: global_figure_handles()) {
if (index_candidate != index) {
break;
}
++index_candidate;
}
register_figure_handle(index_candidate, h);
}
figure_handle register_figure_handle(bool quiet_mode) {
size_t index_candidate = 1;
for (const auto& [index, figure_handle]: global_figure_handles()) {
if (index_candidate != index) {
break;
}
++index_candidate;
}
figure_handle h = std::make_shared<class figure>(index_candidate, quiet_mode);
register_figure_handle(index_candidate, h);
return h;
}
}
figure_handle figure() {
return figure(false);
}
figure_handle figure(bool quiet_mode) {
figure_handle h = detail::register_figure_handle(quiet_mode);
detail::set_current_figure_handle(h);
h->touch();
return h;
}
figure_handle figure(figure_handle h) {
detail::set_current_figure_handle(h);
return h;
}
figure_handle figure(class figure* h) {
return figure(figure_handle{h});
}
figure_handle gcf() {
figure_handle h = detail::current_figure_handle();
if (!h) {
h = figure();
}
return h;
}
const std::vector<std::shared_ptr<struct axes>> &figure::children() const {
return children_;
}
void figure::children(const std::vector<std::shared_ptr<struct axes>> &children) {
children_ = children;
}
std::tuple<std::vector<std::vector<scatter_handle>>,
std::vector<histogram_handle>,
std::vector<std::vector<axes_handle>>>
figure::plotmatrix(const std::vector<std::vector<double>> &X, const std::vector<std::vector<double>> &Y, const std::string &line_spec, bool histogram_on_diagonals) {
bool p = this->quiet_mode();
this->quiet_mode(true);
// data
size_t n_rows = X.size();
size_t n_cols = Y.size();
// results
std::vector<std::vector<scatter_handle>> S(n_rows, std::vector<scatter_handle>(n_cols, nullptr));
std::vector<histogram_handle> H(n_cols);
// get min/max to adjust axes
// adjust x-y ranges
std::vector<double> X_min(X.size());
std::vector<double> X_max(X.size());
for (size_t i = 0; i < X.size(); ++i) {
auto[xmin_it, xmax_it] = std::minmax_element(X[i].begin(), X[i].end());
X_min[i] = *xmin_it;
X_max[i] = *xmax_it;
}
std::vector<double> Y_min(Y.size());
std::vector<double> Y_max(Y.size());
for (size_t i = 0; i < Y.size(); ++i) {
auto[ymin_it, ymax_it] = std::minmax_element(Y[i].begin(), Y[i].end());
Y_min[i] = *ymin_it;
Y_max[i] = *ymax_it;
}
// create scatter plots and histograms
std::vector<std::vector<axes_handle>> axs(n_rows, std::vector<axes_handle>(n_cols, nullptr));
for (size_t i = 0; i < n_rows; ++i) {
for (size_t j = 0; j < n_cols; ++j) {
axs[i][j] = this->add_subplot(n_rows, n_cols, i * n_rows + j);
if (i != j || !histogram_on_diagonals) {
scatter_handle s = axs[i][j]->scatter(X[j], Y[i]);
S[i][j] = s;
s->line_style(line_spec);
// set limits
axs[i][j]->x_axis().limits({X_min[i], X_max[i]});
axs[i][j]->y_axis().limits({Y_min[j], Y_max[j]});
} else {
histogram_handle h = axs[i][j]->hist(X[i]);
H[i] = h;
// set limits
// we let the Y axis be defined automatically because
// it is in a different range from the other Y axes
axs[i][j]->x_axis().limits({X_min[i], X_max[i]});
}
if (i != n_rows - 1) {
axs[i][j]->xticks({});
}
if (j != 0) {
axs[i][j]->yticks({});
}
if (histogram_on_diagonals) {
if (i % 2 == 0) {
if (j == 0) {
axs[i][j]->y_axis().visible(false);
} else if (j == n_cols - 1) {
axs[i][j]->y2_axis().visible(true);
}
}
if (j % 2 == 1) {
if (i == 0) {
axs[i][j]->x2_axis().visible(true);
} else if (i == n_rows - 1) {
axs[i][j]->x_axis().visible(false);
}
}
if (n_rows % 2 == 1 && i == n_rows - 1) {
if (j == 0) {
axs[i][j]->y_axis().visible(true);
} else if (j == n_cols - 1) {
axs[i][j]->y2_axis().visible(false);
}
}
}
}
}
// get limits from the histograms and use the more extreme limit
if (histogram_on_diagonals) {
std::vector<double> H_min(X.size());
std::vector<double> H_max(X.size());
for (size_t i = 0; i < X.size(); ++i) {
histogram_handle h = std::dynamic_pointer_cast<histogram>(*axs[0][0]->children().begin());
H_min[i] = *h->bin_edges().begin();
H_max[i] = *std::prev(h->bin_edges().end());
}
for (size_t i = 0; i < axs.size(); ++i) {
for (size_t j = 0; j < axs.size(); ++j) {
axs[i][j]->x_axis().limits({std::min(X_min[j], H_min[j]), std::max(X_max[j], H_max[j])});
}
}
}
// compact subplots
float l_margin = axs[0][0]->x_origin();
float r_margin = 1.f - axs[0][n_cols - 1]->y_origin() - axs[0][n_cols - 1]->width();
float b_margin = axs[n_rows - 1][0]->y_origin();
float t_margin = 1.f - axs[0][0]->y_origin() - axs[0][0]->height();
float subplot_width = (1.f - l_margin - r_margin) / n_cols;
float subplot_height = (1.f - t_margin - b_margin) / n_rows;
for (size_t i = 0; i < n_rows; ++i) {
for (size_t j = 0; j < n_cols; ++j) {
axs[i][j]->width(subplot_width - 0.01);
axs[i][j]->height(subplot_height - 0.01);
axs[i][j]->x_origin(l_margin + subplot_width * j);
axs[i][j]->y_origin(1.f - t_margin - subplot_height - subplot_height * i);
}
}
this->quiet_mode(p);
if (!p) {
this->draw();
}
return std::make_tuple(S, H, axs);
}
bool save(const std::string& filename, const std::string& format) {
return save(gcf(),filename,format);
}
bool save(const std::string& filename) {
return save(gcf(),filename);
}
bool save(figure_handle f, const std::string& filename, const std::string& format) {
return f->save(filename,format);
}
bool save(figure_handle f, const std::string& filename) {
return f->save(filename);
}
const std::shared_ptr<backend::backend_interface> &figure::backend() const {
return backend_;
}
void figure::backend(const std::shared_ptr<backend::backend_interface> &new_backend) {
backend_ = new_backend;
}
}