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388 lines (329 loc) 路 12.4 KB
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//
// Created by Alan Freitas on 2020-07-07.
//
#include <cmath>
#include <sstream>
#include <regex>
#include <matplot/axes_objects/vectors.h>
#include <matplot/core/axes.h>
#include <matplot/util/common.h>
namespace matplot {
vectors::vectors(class axes* parent) : axes_object(parent) {}
vectors::vectors(class axes* parent, const std::vector<double>& v_data, const std::string& line_spec)
: axes_object(parent), v_data_(v_data), line_spec_(this, line_spec) {}
vectors::vectors(class axes* parent, const std::vector<double>& u_data, const std::vector<double>& v_data, const std::string& line_spec) : axes_object(parent), u_data_(u_data), v_data_(v_data), line_spec_(this, line_spec) {}
vectors::vectors(class axes* parent, const std::vector<double>& u_data, const std::vector<double>& v_data, const std::vector<double>& w_data, const std::string& line_spec)
: axes_object(parent), u_data_(u_data), v_data_(v_data), w_data_(w_data), line_spec_(this, line_spec) {}
vectors::vectors(class axes* parent, const std::vector<double>& x_data, const std::vector<double>& y_data, const std::vector<double>& u_data, const std::vector<double>& v_data, const std::string& line_spec)
: axes_object(parent), x_data_(x_data), y_data_(y_data), u_data_(u_data), v_data_(v_data), line_spec_(this, line_spec) {}
vectors::vectors(class axes* parent, const std::vector<double>& x_data, const std::vector<double>& y_data, const std::vector<double>& z_data, const std::vector<double>& u_data, const std::vector<double>& v_data, const std::vector<double>& w_data, const std::string& line_spec)
: axes_object(parent), x_data_(x_data), y_data_(y_data), z_data_(z_data), u_data_(u_data), v_data_(v_data), w_data_(w_data), line_spec_(this, line_spec) {}
std::string vectors::plot_string() {
maybe_update_line_spec();
std::stringstream ss;
ss << " '-' with vectors " + line_spec_.plot_string(line_spec::style_to_plot::plot_line_only, false);
if (use_y2_) {
ss << " xlim x1y2";
}
return ss.str();
}
std::string vectors::legend_string(const std::string& title) {
return " keyentry with vectors " + line_spec_.plot_string(line_spec::style_to_plot::plot_line_only, false) + " title \"" + escape(title) + "\"";
}
std::string vectors::data_string() {
std::stringstream ss;
if (visible_) {
for (size_t i = 0; i < v_data_.size(); ++i) {
double x_value = x_data_.size() > i ? x_data_[i] : is_polar() ? 0 : static_cast<double>(i + 1);
double y_value = y_data_.size() > i ? y_data_[i] : 0;
double z_value = z_data_.size() > i ? z_data_[i] : 0;
double u_value = u_data_.size() > i ? u_data_[i] : 0;
double v_value = v_data_.size() > i ? v_data_[i] : 0;
double w_value = w_data_.size() > i ? w_data_[i] : 0;
bool is_end_of_series = !isfinite(x_value) ||
!isfinite(y_value) ||
!isfinite(z_value) ||
!isfinite(u_value) ||
!isfinite(v_value) ||
!isfinite(w_value);
if (is_end_of_series) {
ss << " \n";
continue;
}
ss << " " << x_value;
ss << " " << y_value;
if (is_3d()) {
ss << " " << z_value;
} else if (parent_->is_3d()) {
ss << " " << 0.0;
}
ss << " " << u_value;
ss << " " << v_value;
if (is_3d()) {
ss << " " << w_value;
} else if (parent_->is_3d()) {
ss << " " << 0.0;
}
ss << "\n";
}
// if polar, gnuplot uses the vector origin to determine
// the automatic range of the r-axis.
// If they all have origin 0,0 as often common, there is
// no r-axis.
// So we create an extra vector of magnitude zero from
// the polar max to make the r-range adapt.
if (is_polar()) {
ss << " 0 " << xmax() << " 0 0\n";
}
}
ss << " " << "e\n";
return ss.str();
}
void vectors::maybe_update_line_spec() {
if (line_spec_.has_line() && !line_spec_.user_color()) {
// if user didn't set the color, get color from xlim
auto c = parent_->get_color_and_bump();
line_spec_.color(c);
} else if (line_spec_.has_non_custom_marker() && !line_spec_.user_color() && !line_spec_.marker_user_color()) {
auto c = parent_->get_color_and_bump();
line_spec_.marker_color(c);
}
}
double vectors::xmax() {
if (!is_polar()) {
if (x_data_.empty()) {
if (!y_data_.empty()) {
return static_cast<double>(y_data_.size()-1);
} else {
return axes_object::xmax();
}
}
return *std::max_element(x_data_.begin(), x_data_.end());
} else {
// y = rho
if (parent_->r_axis().limits_mode_manual()) {
return +(parent_->r_axis().limits()[1] - parent_->r_axis().limits()[0]);
}
auto [min_rho, max_rho] = std::minmax_element(y_data_.begin(), y_data_.end());
if (max_rho != y_data_.end() && min_rho != y_data_.end()) {
return +round_polar_max(abs(*max_rho));
} else {
return 1;
}
}
}
double vectors::xmin() {
if (!is_polar()) {
if (x_data_.empty()) {
if (!y_data_.empty()) {
return 0;
} else {
return axes_object::xmin();
}
}
return *std::min_element(x_data_.begin(), x_data_.end());
} else {
// y = rho
if (parent_->r_axis().limits_mode_manual()) {
return -(parent_->r_axis().limits()[1] - parent_->r_axis().limits()[0]);
}
auto [min_rho, max_rho] = std::minmax_element(y_data_.begin(), y_data_.end());
if (max_rho != y_data_.end() && min_rho != y_data_.end()) {
return -round_polar_max(abs(*max_rho));
} else {
return -1;
}
}
}
double vectors::ymax() {
if (!is_polar()) {
if (y_data_.empty()) {
return axes_object::ymax();
}
return *std::max_element(y_data_.begin(), y_data_.end());
} else {
// y = rho
if (parent_->r_axis().limits_mode_manual()) {
return +(parent_->r_axis().limits()[1] - parent_->r_axis().limits()[0]);
}
auto [min_rho, max_rho] = std::minmax_element(y_data_.begin(), y_data_.end());
if (max_rho != y_data_.end() && min_rho != y_data_.end()) {
return +round_polar_max(abs(*max_rho));
} else {
return 1;
}
}
}
double vectors::ymin() {
if (!is_polar()) {
if (y_data_.empty()) {
return axes_object::ymin();
}
return *std::min_element(y_data_.begin(), y_data_.end());
} else {
// y = rho
if (parent_->r_axis().limits_mode_manual()) {
return -(parent_->r_axis().limits()[1] - parent_->r_axis().limits()[0]);
}
auto [min_rho, max_rho] = std::minmax_element(y_data_.begin(), y_data_.end());
if (max_rho != y_data_.end() && min_rho != y_data_.end()) {
return -round_polar_max(abs(*max_rho));
} else {
return -1;
}
}
}
enum axes_object::axes_category vectors::axes_category() {
if (z_data_.empty()) {
if (!polar_) {
return axes_object::axes_category::two_dimensional;
} else {
return axes_object::axes_category::polar;
}
} else {
return axes_object::axes_category::three_dimensional;
}
}
class vectors& vectors::line_style(const std::string& str) {
line_spec_.parse_string(str);
touch();
return *this;
}
const line_spec &vectors::line_spec() const {
return line_spec_;
}
line_spec &vectors::line_spec() {
return line_spec_;
}
class vectors& vectors::line_spec(const class line_spec &line_spec) {
line_spec_ = line_spec;
touch();
return *this;
}
const std::vector<double> &vectors::y_data() const {
return y_data_;
}
class vectors& vectors::y_data(const std::vector<double> &y_data) {
y_data_ = y_data;
touch();
return *this;
}
const std::vector<double> &vectors::x_data() const {
return x_data_;
}
class vectors& vectors::x_data(const std::vector<double> &x_data) {
x_data_ = x_data;
touch();
return *this;
}
const std::vector<double> &vectors::z_data() const {
return z_data_;
}
class vectors& vectors::z_data(const std::vector<double> &z_data) {
z_data_ = z_data;
touch();
return *this;
}
const std::vector<size_t> &vectors::marker_indices() const {
return marker_indices_;
}
class vectors& vectors::marker_indices(const std::vector<size_t> &marker_indices) {
marker_indices_ = marker_indices;
touch();
return *this;
}
bool vectors::visible() const {
return visible_;
}
class vectors& vectors::visible(bool visible) {
visible_ = visible;
touch();
return *this;
}
float vectors::line_width() const {
return line_spec().line_width();
}
class vectors& vectors::line_width(float line_width) {
line_spec().line_width(line_width);
return *this;
}
enum line_spec::marker_style vectors::marker_style() const {
return line_spec().marker();
}
enum line_spec::marker_style vectors::marker() const {
return line_spec().marker();
}
float vectors::marker_size() const {
return line_spec().marker_size();
}
class vectors& vectors::marker_size(float size) {
line_spec().marker_size(size);
return *this;
}
class vectors& vectors::marker_size(const std::vector<float>& size_vector) {
marker_sizes_ = size_vector;
touch();
return *this;
}
class vectors& vectors::marker_size(const std::vector<double>& size_vector) {
std::vector<float> size_vector_float(size_vector.begin(), size_vector.end());
marker_size(size_vector_float);
return *this;
}
bool vectors::marker_face() const {
return line_spec().marker_face();
}
class vectors& vectors::marker_face(bool marker_face) {
line_spec().marker_face(marker_face);
return *this;
}
const std::array<float, 4>& vectors::color() const {
return line_spec().color();
}
const std::array<float, 4>& vectors::marker_color() const {
return line_spec().marker_color();
}
const std::array<float, 4>& vectors::marker_face_color() const {
return line_spec().marker_face_color();
}
bool vectors::use_y2() const {
return use_y2_;
}
class vectors& vectors::use_y2(bool use_y_2) {
use_y2_ = use_y_2;
touch();
return *this;
}
bool vectors::impulse() const {
return impulse_;
}
class vectors& vectors::impulse(bool impulse) {
impulse_ = impulse;
touch();
return *this;
}
bool vectors::fill() const {
return fill_;
}
class vectors& vectors::fill(bool fill) {
fill_ = fill;
touch();
return *this;
}
bool vectors::use_y_2() const {
return use_y2_;
}
class vectors& vectors::use_y_2(bool use_y_2) {
use_y2_ = use_y_2;
touch();
return *this;
}
bool vectors::polar() const {
return polar_;
}
class vectors& vectors::polar(bool polar) {
polar_ = polar;
touch();
return *this;
}
}