diff --git a/sh/gen_doc.sh b/sh/gen_doc.sh
deleted file mode 100755
index a8dae5d..0000000
--- a/sh/gen_doc.sh
+++ /dev/null
@@ -1,23 +0,0 @@
-
-
-# Work in progress ...
-#
-# generate ETL graph from all layers 
-# start from the root :
-#   ./sh/gen_doc.sh
-#
-# outut ->  ./doc/ 
-
-
-mkdir -p ./doc/
-rm -f ./doc/*
-for f in ./layers/*
-do
-	echo "Processing : $f"
-    layer_id=$(echo "$f" | rev | cut -d"/" -f1 | rev )
-    echo "layer_id = $layer_id"
-    ./sh/gen_etl_graph.sh $layer_id
-
-done
-
-
diff --git a/sh/gen_etl_graph.sh b/sh/gen_etl_graph.sh
deleted file mode 100755
index 572fe83..0000000
--- a/sh/gen_etl_graph.sh
+++ /dev/null
@@ -1,45 +0,0 @@
-
-
-
-# Work in progress ...
-#
-# generate ETL graph from a single layer 
-# start from the root 
-# parameter1: "layer name"  
-#   ./sh/gen_etl_graph.sh  waterway
-#
-# outut ->  ./doc/ 
-
-ID=$1 
-## ID=waterway
-
-mkdir -p ./doc
-layer_dir=./layers/${ID}/
-DOT=./doc/dot_${ID}.dot
-
-
-echo "digraph G
-{    
-rankdir=LR;
-" > $DOT
-
-if [  -f ${layer_dir}/mapping.yaml ]; then
-    echo "processing imposm3 mapping file ${layer_dir}/mapping.yaml "
-    cat ${layer_dir}/mapping.yaml    | grep    "# etldoc:" |  sed 's/# etldoc://g'  >>$DOT
-fi
-
-
-for f in ${layer_dir}*.sql
-do
-	echo "Processing : $f"
-    cat $f  | grep "\-\- etldoc:" |  sed 's/-- etldoc://g' >>$DOT
-done
-
-echo "
-}
-" >> $DOT
-
-##cat $DOT
-
-dot -Tpng $DOT > ./doc/etl_layer_${ID}.png
-dot -Tsvg $DOT > ./doc/etl_layer_${ID}.svg