From cfdaa9d60e24ae2495c3bd2bbd779b499b437ea0 Mon Sep 17 00:00:00 2001
From: Andreas Salzburger <asalzburger@gmail.com>
Date: Mon, 22 Apr 2024 14:19:16 +0200
Subject: [PATCH] backward compatibility

---
 core/include/actsvg/core/views.hpp | 60 ++++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)

diff --git a/core/include/actsvg/core/views.hpp b/core/include/actsvg/core/views.hpp
index f42a15a..0e5ca14 100644
--- a/core/include/actsvg/core/views.hpp
+++ b/core/include/actsvg/core/views.hpp
@@ -88,6 +88,21 @@ struct x_y {
         }
         return c;
     }
+
+    /** A planar view operator, asuming a contour in x/y plane
+     *
+     * @tparam point3_container is a 3D-point container, where elements
+     * of a single p3 object can be accessed via [] operators
+     *
+     * @param vertices_ the vertices of the surface, they are
+     * assumed to be in global/display coorindates
+     *
+     * @return a 2D contour array
+     */
+    template <typename point3_container>
+    contour operator()(const point3_container &vertices_) const {
+        return path(vertices_);
+    }
 };
 
 /// z_r projection view
@@ -132,6 +147,21 @@ struct z_r {
         }
         return c;
     }
+
+    /** A planar view operator
+     *
+     * @tparam point3_container is a 3D-point container, where elements
+     * of a single p3 object can be accessed via [] operators
+     *
+     * @param vertices_ the vertices of the surface, they are
+     * assumed to be in global/display coorindates
+     *
+     * @return a 2D contour array
+     */
+    template <typename point3_container>
+    contour operator()(const point3_container &vertices_) const {
+        return path(vertices_);
+    }
 };
 
 // z-phi projection view
@@ -202,6 +232,21 @@ struct z_phi {
         }
         return c;
     }
+
+    /** A planar view operator
+     *
+     * @tparam point3_container is a 3D-point container, where elements
+     * of a single p3 object can be accessed via [] operators
+     *
+     * @param vertices_ the vertices of the surface, they are
+     * assumed to be in global/display coorindates
+     *
+     * @return a 2D contour array
+     */
+    template <typename point3_container>
+    contour operator()(const point3_container &vertices_) const {
+        return path(vertices_);
+    }
 };
 
 // z_rphi projection view
@@ -253,6 +298,21 @@ struct z_rphi {
         }
         return c;
     }
+
+    /** A planar view operator
+     *
+     * @tparam point3_container is a 3D-point container, where elements
+     * of a single p3 object can be accessed via [] operators
+     *
+     * @param vertices_ the vertices of the surface, they are
+     * assumed to be in global/display coorindates
+     *
+     * @return a 2D contour array
+     */
+    template <typename point3_container>
+    contour operator()(const point3_container &vertices_) const {
+        return path(vertices_);
+    }
 };
 
 }  // namespace views