diff --git a/presentation/diagrams/edge_sampling.tex b/presentation/diagrams/edge_sampling.tex
index 711af88..7c89b88 100644
--- a/presentation/diagrams/edge_sampling.tex
+++ b/presentation/diagrams/edge_sampling.tex
@@ -5,7 +5,7 @@
             \draw[
                 fill,
                 kit-green40
-            ] (0,0.3) -- (6,0.3) -- (3,3.3) -- cycle;
+            ] (-0.3,0) -- (6.3,0) -- (3,3.3) -- cycle;
 
             %primary tri
             \draw[
@@ -49,7 +49,7 @@
             \draw[
                 fill,
                 kit-green40
-            ] (0,0.3) -- (6,0.3) -- (3,3.3) -- cycle;
+            ] (-0.3,0) -- (6.3,0) -- (3,3.3) -- cycle;
 
             %primary tri
             \draw[
diff --git a/presentation/modules/this_method.tex b/presentation/modules/this_method.tex
index db0c02c..f396ff7 100644
--- a/presentation/modules/this_method.tex
+++ b/presentation/modules/this_method.tex
@@ -25,7 +25,8 @@
 \end{frame}
 
 \begin{frame}{Edge sampling - Illustration}
-    
+    \centering
+    \input{presentation/diagrams/edge_sampling}
 \end{frame}
 
 \subsection{conclusion - what can this method do?}