diff --git a/buzzmobile/process/gps_mapper/gps_mapper.lisp b/buzzmobile/process/gps_mapper/gps_mapper.lisp
new file mode 100644
index 0000000..4a1576e
--- /dev/null
+++ b/buzzmobile/process/gps_mapper/gps_mapper.lisp
@@ -0,0 +1,3 @@
+(with-ros-node ("gps_mapper_node")
+               (do-stuff)
+               )
diff --git a/buzzmobile/simulation/models/gzb_utils/gzb_to_latlon.py b/buzzmobile/simulation/models/gzb_utils/gzb_to_latlon.py
new file mode 100644
index 0000000..ac90823
--- /dev/null
+++ b/buzzmobile/simulation/models/gzb_utils/gzb_to_latlon.py
@@ -0,0 +1,30 @@
+from math import pi, sin, cos, sqrt
+import sys
+
+EARTH_RADIUS = 6378137.0 # we're not using params because this is gzb specific
+FLATTENING = 1.0/298.257223563
+EXCENTRICITY2 = 2 * FLATTENING - (FLATTENING**2)
+
+REF_LAT = 49.9
+REF_LON = 8.9
+REF_HEAD = 0.0
+REF_ALT = 0.0
+
+TEMP = 1.0 / (1.0 - EXCENTRICITY2 * sin(REF_LAT * pi/180.0) * sin(REF_LAT * pi/180.0))
+PRIME_VERT_RADIUS = EARTH_RADIUS * sqrt(TEMP)
+NORTH_RADIUS = PRIME_VERT_RADIUS * (1 - EXCENTRICITY2) * TEMP
+EAST_RADIUS = PRIME_VERT_RADIUS * cos(REF_LAT * pi/180.0)
+
+def convert(x, y):
+    lat = REF_LAT + ((cos(REF_HEAD) * x + sin(REF_HEAD) * y) / NORTH_RADIUS) * 180.0/pi
+    lon = REF_LON - ((-sin(REF_HEAD) * x + cos(REF_HEAD) * y) / EAST_RADIUS) * 180.0/pi
+    return (lat, lon)
+
+def main():
+    print("[note] expecting arguments as: x y")
+    x = float(sys.argv[1])
+    y = float(sys.argv[2])
+    (lat, lon) = convert(x, y)
+    print("[out] {0} {1}".format(lat, lon))
+
+if __name__=='__main__': main()
diff --git a/buzzmobile/simulation/models/gzb_utils/straight.polyline b/buzzmobile/simulation/models/gzb_utils/straight.polyline
new file mode 100644
index 0000000..94dea15
--- /dev/null
+++ b/buzzmobile/simulation/models/gzb_utils/straight.polyline
@@ -0,0 +1 @@
+_bqoH_hiu@cQ?
diff --git a/buzzmobile/simulation/models/gzb_utils/world_to_polyline.py b/buzzmobile/simulation/models/gzb_utils/world_to_polyline.py
new file mode 100644
index 0000000..1dbe342
--- /dev/null
+++ b/buzzmobile/simulation/models/gzb_utils/world_to_polyline.py
@@ -0,0 +1,27 @@
+import sys
+import xml
+import xml.etree.ElementTree as ET
+from gzb_to_latlon import convert
+
+def road_coordinates_to_latlons(road_coordinates):
+    latlons = []
+    for coordinate in road_coordinates:
+        (lat, lon) = convert(coordinate[0], coordinate[1])
+        latlons.append((lat, lon))
+    return latlons
+
+def world_xml_to_road_coordinates(filename):
+    tree = ET.parse(filename)
+    root = tree.getroot()
+    for child in root:
+        if 'world' == str(child.tag):
+            gui = xml.Element('gui')
+            camera = xml.Element('camera')
+            pose = xml.Element('pose')
+            pose.text = '0 0 50 0 0 0'
+            camera.append(pose)
+            gui.append(camera)
+            child.append(gui)
+
+
+if __name__ == '__main__': world_xml_to_road_coordinates(sys.argv[1])