opengl.texture.coordinates: Add 'centroid' as part of the result in simple function to compute texture coordinates from a set of vertices.

2023-11-14 22:22:43 +11:00
parent ae8cee1cce
commit fa02760f9c
3 changed files with 38 additions and 32 deletions
--- a/3-mid/opengl/source/lean/opengl-texture-coordinates.ads
+++ b/3-mid/opengl/source/lean/opengl-texture-coordinates.ads
@@ -8,7 +8,14 @@ is
   --- 2D
   --

-   function to_Coordinates (the_Vertices : in Vector_2_array) return Coordinates_2D;
+   type Coords_2D_and_Centroid (coords_Count : Index_t) is
+      record
+         Coords   : Coordinates_2D (1 .. coords_Count);
+         Centroid : Vector_2;
+      end record;
+
+
+   function to_Coordinates (the_Vertices : in Vector_2_array) return Coords_2D_and_Centroid;
   --
   -- Maps the vertices to texture coordinates.