diff --git a/figure_canvas.py b/figure_canvas.py
deleted file mode 100644
index 17a0922..0000000
--- a/figure_canvas.py
+++ /dev/null
@@ -1,86 +0,0 @@
-from __future__ import print_function
-from future.builtins import super
-
-from matplotlib.figure import Figure
-from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg
-from PyQt5.QtWidgets import QSizePolicy
-
-
-class GravityModelCanvas(FigureCanvasQTAgg):
-
-    def __init__(self, parent=None, width=5, height=4, dpi=100):
-        self.fig = Figure(figsize=(width, height), dpi=dpi)
-        super().__init__(self.fig)
-        self.setParent(parent)
-
-        self._x, self._z = None, None
-        self._min_depth, self._max_depth = 0., 35000.
-
-        self.predicted = None
-        self.data = None
-        self.polygons = None
-
-        self._plotted = False
-
-        FigureCanvasQTAgg.setSizePolicy(self,
-                                        QSizePolicy.Expanding,
-                                        QSizePolicy.Expanding)
-        FigureCanvasQTAgg.updateGeometry(self)
-
-    @property
-    def x(self):
-        return self._x
-
-    @x.setter
-    def x(self, new_value):
-        self._x = new_value
-
-    @property
-    def z(self):
-        return self._z
-
-    @z.setter
-    def z(self, new_value):
-        self._z = new_value
-
-    @property
-    def min_depth(self):
-        return self._min_depth
-
-    @min_depth.setter
-    def min_depth(self, new_value):
-        self._min_depth = new_value
-
-    @property
-    def max_depth(self):
-        return self._max_depth
-
-    @max_depth.setter
-    def max_depth(self, new_value):
-        self._max_depth = new_value
-
-    def update_plot(self):
-        if self._plotted:
-            pass
-        else:
-            self._figure_setup()
-
-    def _figure_setup(self, **kwargs):
-        self.dataax, self.modelax = self.fig.subplots(2, 1, sharex=True)
-        if self.data is not None:
-            self.data_line, = self.dataax.plot(self.x, self.data, '.k')
-        self.dataax.set_ylabel('Gravity anomaly [mGal]')
-        self.dataax.set_xlim(self.x.min(), self.x.max())
-        self.dataax.set_ylim((-200, 200))
-        self.dataax.grid(True)
-        self.modelax.set_xlabel('x [m]')
-        self.modelax.set_xlim(self.x.min(), self.x.max())
-        self.modelax.set_ylim(self.min_depth, self.max_depth)
-        self.modelax.grid(True)
-        self.modelax.invert_yaxis()
-        self.modelax.set_ylabel('z [m]')
-        self.fig.subplots_adjust(top=0.95, left=0.1, right=0.95, bottom=0.1,
-                                 hspace=0.1)
-        self.figure = self.fig
-        self.canvas = self.fig.canvas
-        self.fig.canvas.draw()
diff --git a/__init__.py b/moulder/__init__.py
similarity index 100%
rename from __init__.py
rename to moulder/__init__.py
diff --git a/configure_dialog.py b/moulder/configure_dialog.py
similarity index 100%
rename from configure_dialog.py
rename to moulder/configure_dialog.py
diff --git a/double_slider.py b/moulder/double_slider.py
similarity index 100%
rename from double_slider.py
rename to moulder/double_slider.py
diff --git a/interactive.py b/moulder/interactive.py
similarity index 100%
rename from interactive.py
rename to moulder/interactive.py
diff --git a/moulder.py b/moulder/moulder.py
similarity index 100%
rename from moulder.py
rename to moulder/moulder.py