Polar Plot

README.md

@@ -91,6 +91,28 @@ From [gallery/subplots_axes_and_figures/align_labels_demo.cpp](https://github.co
 
 ![subplots_axes_and_figures](./gallery/images/align_labels_demo.png)
 
+### polar plot
+-[original python code](https://matplotlib.org/devdocs/gallery/pie_and_polar_charts/polar_demo.html#sphx-glr-gallery-pie-and-polar-charts-polar-demo-py)
+
+```cpp
+vector<double> r(200),theta(200);
+	for (int i = 0; i < 200; ++i)
+		{
+			r[i]=i*0.01;
+			theta[i]=2 * 3.1415 * r[i];
+		}
+	auto plt = matplotlibcpp17::pyplot::import();
+	auto [fig, ax] = plt.subplots(Kwargs("subplot_kw"_a=py::dict("projection"_a = "polar")));
+	ax.plot(Args(theta,r));
+	ax.set_rmax(Args(2));
+	ax.set_rticks(Args(py::make_tuple(0.5, 1, 1.5, 2)));
+	ax.grid(Args(true));
+	ax.set_title(Args("A line plot on a polar axis"), Kwargs("va"_a="bottom"));
+	plt.savefig(Args("./PolarPlot.jpg"));
+	plt.show();
+```
+![polarplot_demo](./gallery/images/PolarPlot.jpg)
+
 ### bar plot
 
 From [gallery/lines_bars_and_markers/bar_label_demo.cpp](https://github.com/soblin/matplotlibcpp17/blob/master/gallery/lines_bars_and_markers/bar_label_demo.cpp). Here `subplots()` returns `tuple<Figure, Axes>`.

include/matplotlibcpp17/axes.h

@@ -214,6 +214,22 @@ struct DECL_STRUCT_ATTR Axes : public BaseWrapper {
   ObjectWrapper set_yticks(const pybind11::tuple &args = pybind11::tuple(),
                            const pybind11::dict &kwargs = pybind11::dict());
 
+  // set_rticks
+  ObjectWrapper set_rticks(const pybind11::tuple &args = pybind11::tuple(),
+                         const pybind11::dict &kwargs = pybind11::dict());
+
+  // set_rmax
+  ObjectWrapper set_rmax(const pybind11::tuple &args);
+
+  // set_theta_direction
+  ObjectWrapper set_theta_direction(const pybind11::tuple &args);
+
+  // set_rlabel_position
+  ObjectWrapper set_rlabel_position(const pybind11::tuple &args);
+
+  // minorticks_on
+  ObjectWrapper minorticks_on();
+
   // set_zlabel
   ObjectWrapper set_zlabel(const pybind11::tuple &args = pybind11::tuple(),
                            const pybind11::dict &kwargs = pybind11::dict());
@@ -293,6 +309,11 @@ struct DECL_STRUCT_ATTR Axes : public BaseWrapper {
     LOAD_FUNC_ATTR(set_ylim, self);
     LOAD_FUNC_ATTR(set_yscale, self);
     LOAD_FUNC_ATTR(set_yticks, self);
+    LOAD_FUNC_ATTR(set_rticks, self);
+    LOAD_FUNC_ATTR(set_rmax, self);
+    LOAD_FUNC_ATTR(set_theta_direction, self);
+    LOAD_FUNC_ATTR(set_rlabel_position, self);
+    LOAD_FUNC_ATTR(minorticks_on, self);
     LOAD_FUNC_ATTR(text, self);
     LOAD_FUNC_ATTR(tick_params, self);
     LOAD_FUNC_ATTR(twinx, self);
@@ -340,6 +361,11 @@ struct DECL_STRUCT_ATTR Axes : public BaseWrapper {
   pybind11::object set_ylim_attr;
   pybind11::object set_yscale_attr;
   pybind11::object set_yticks_attr;
+  pybind11::object set_rticks_attr;
+  pybind11::object set_rmax_attr;
+  pybind11::object set_theta_direction_attr;
+  pybind11::object set_rlabel_position_attr;
+  pybind11::object minorticks_on_attr;
   pybind11::object set_zlabel_attr;
   pybind11::object set_zlim_attr;
   pybind11::object text_attr;
@@ -681,6 +707,37 @@ ObjectWrapper Axes::set_yticks(const pybind11::tuple &args,
   return ObjectWrapper(std::move(ret));
 }
 
+  // set_rticks
+ObjectWrapper Axes::set_rticks(const pybind11::tuple &args,
+										 const pybind11::dict &kwargs) {
+	pybind11::object ret = set_rticks_attr(*args, **kwargs);
+	return ObjectWrapper(std::move(ret));
+}
+
+// set_rmax
+ObjectWrapper Axes::set_rmax(const pybind11::tuple &args) {
+  pybind11::object ret = set_rmax_attr(*args);
+  return ObjectWrapper(std::move(ret));
+}
+
+// set_theta_direction
+ObjectWrapper Axes::set_theta_direction(const pybind11::tuple &args) {
+  pybind11::object ret = set_theta_direction_attr(*args);
+  return ObjectWrapper(std::move(ret));
+}
+
+// set_rlabel_position
+   ObjectWrapper Axes::set_rlabel_position(const pybind11::tuple &args) {
+  pybind11::object ret = set_rlabel_position_attr(*args);
+  return ObjectWrapper(std::move(ret));
+}
+
+// minorticks_on
+ObjectWrapper Axes::minorticks_on() {
+  pybind11::object ret = minorticks_on_attr();
+  return ObjectWrapper(std::move(ret));
+}
+
 // set_zlabel
 ObjectWrapper Axes::set_zlabel(const pybind11::tuple &args,
                                const pybind11::dict &kwargs) {