Add docstrings

1 files changed, 5 insertions, 4 deletions

diff --git a/geometry.go b/geometry.go
index 80420a6..fdbbcef 100644
--- a/geometry.go
+++ b/geometry.go
@@ -6,22 +6,23 @@ import (
 	"github.com/go-gl/mathgl/mgl32"
 )
 
-// representation of a three-dimensional point in space
+// Point represents a three-dimensional point in space.
 type Point struct {
 	scalars [3]float32  // x = scalars[0], y = scalars[1], z = scalars[2]
 }
 
-// a triangle consists of three points
+// Triangle is a geometrical triangle defined by three points.
 type Triangle struct {
 	points [3]*Point
 }
 
-// a surface is made of a slice of triangles
+// Surface is a slice of triangles.
 type Surface struct {
 	triangles []*Triangle
 }
 
-// return a transformation to view the whole centered surface
+// getHomeView returns a transformation which shows the given Surface in the
+// center of the window.
 func (s Surface) getHomeView() mgl32.Mat4 {
 
 	// evaluating the smallest and biggest values for x,y,z of the surface