From abbfee5804dde741169cd0f454eece4acaa66326 Mon Sep 17 00:00:00 2001
From: Antonio Cervone <ant.cervone@gmail.com>
Date: Fri, 2 Apr 2021 10:13:21 +0200
Subject: [PATCH 1/3] Let TikZNode.at be also a TikZNodeAnchor

---
 pylatex/tikz.py | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/pylatex/tikz.py b/pylatex/tikz.py
index 98add4be..fdf81860 100644
--- a/pylatex/tikz.py
+++ b/pylatex/tikz.py
@@ -199,7 +199,7 @@ def dumps(self):
 class TikZNode(TikZObject):
     """A class that represents a TiKZ node."""
 
-    _possible_anchors = ['north', 'south', 'east', 'west']
+    _possible_anchors = ['center', 'north', 'south', 'east', 'west']
 
     def __init__(self, handle=None, options=None, at=None, text=None):
         """
@@ -209,8 +209,8 @@ def __init__(self, handle=None, options=None, at=None, text=None):
             Node identifier
         options: list
             List of options
-        at: TikZCoordinate
-            Coordinate where node is placed
+        at: TikZCoordinate of TikZNodeAnchor
+            Coordinate or anchor where node is placed
         text: str
             Body text of the node
         """
@@ -218,12 +218,12 @@ def __init__(self, handle=None, options=None, at=None, text=None):
 
         self.handle = handle
 
-        if isinstance(at, (TikZCoordinate, type(None))):
+        if isinstance(at, (TikZCoordinate, TikZNodeAnchor, type(None))):
             self._node_position = at
         else:
             raise TypeError(
                 'at parameter must be an object of the'
-                'TikzCoordinate class')
+                'TikZCoordinate or TikZNodeAnchor class')
 
         self._node_text = text
 

From 5bdfa804fffa4ba23667e4f2af7535b9fe4a8f47 Mon Sep 17 00:00:00 2001
From: Antonio Cervone <ant.cervone@gmail.com>
Date: Fri, 2 Apr 2021 11:14:12 +0200
Subject: [PATCH 2/3] add example that leverages TikZNode.at with anchor

---
 examples/tikzcp.py | 53 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 examples/tikzcp.py

diff --git a/examples/tikzcp.py b/examples/tikzcp.py
new file mode 100644
index 00000000..3623c6f6
--- /dev/null
+++ b/examples/tikzcp.py
@@ -0,0 +1,53 @@
+#!/usr/bin/python
+"""
+This example shows TikZ drawing capabilities overlaying the current page.
+
+..  :copyright: (c) 2021 by Antonio Cervone
+    :license: MIT, see License for more details.
+"""
+
+# begin-doc-include
+from pylatex import (
+    Document,
+    TikZ,
+    TikZNode,
+    TikZNodeAnchor,
+    TikZOptions,
+)
+
+if __name__ == "__main__":
+
+    # create document
+    doc = Document()
+
+    # options for the tikzpicture environment
+    tikz_opts = TikZOptions("remember picture", "overlay")
+
+    # add our sample drawings
+    with doc.create(TikZ(options=tikz_opts)) as pic:
+
+        # create an anchor to the page center
+        page_center = TikZNodeAnchor("current page", "center")
+
+        # create a node on the center of the page
+        centerbox = TikZNode(
+            text="this is the center",
+            at=page_center,
+            options=TikZOptions("draw"),
+        )
+
+        # add to tikzpicture
+        pic.append(centerbox)
+
+        # create an anchor to the page center
+        page_top = TikZNodeAnchor("current page", "north")
+
+        # create a node at the top of the page
+        topbox = TikZNode(
+            text="this is the top", at=page_top, options=({"anchor": "north"})
+        )
+
+        # add to tikzpicture
+        pic.append(topbox)
+
+    doc.generate_pdf("tikzcp", clean_tex=False)

From 497f14b87bcacd5c05c53a47f50665b9b7da02eb Mon Sep 17 00:00:00 2001
From: Antonio Cervone <ant.cervone@gmail.com>
Date: Wed, 16 Jun 2021 11:42:06 +0200
Subject: [PATCH 3/3] add additional anchors

---
 pylatex/tikz.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pylatex/tikz.py b/pylatex/tikz.py
index fdf81860..ef1656c4 100644
--- a/pylatex/tikz.py
+++ b/pylatex/tikz.py
@@ -199,7 +199,7 @@ def dumps(self):
 class TikZNode(TikZObject):
     """A class that represents a TiKZ node."""
 
-    _possible_anchors = ['center', 'north', 'south', 'east', 'west']
+    _possible_anchors = ['center', 'north', 'south', 'east', 'west', 'north east', 'south east', 'south west', 'north west']
 
     def __init__(self, handle=None, options=None, at=None, text=None):
         """