diff --git a/samila/functions.py b/samila/functions.py
index b3a12d7..c04d653 100644
--- a/samila/functions.py
+++ b/samila/functions.py
@@ -1,2 +1,18 @@
 # -*- coding: utf-8 -*-
 """Samila functions."""
+
+def float_range(start, stop, step):
+    """
+    Generate float range.
+
+    :param start: start point
+    :type start: float
+    :param stop: stop point
+    :type step: float
+    :param step: step
+    :type step: float
+    :return: yield result
+    """
+    while start < stop:
+        yield float(start)
+        start += step
diff --git a/samila/genimage.py b/samila/genimage.py
index 08a4ba3..267b0c1 100644
--- a/samila/genimage.py
+++ b/samila/genimage.py
@@ -1,2 +1,34 @@
 # -*- coding: utf-8 -*-
 """Samila generative image."""
+import random
+import itertools
+import matplotlib.pyplot as plt
+from .functions import float_range
+from .params import *
+
+class GenerativeImage:
+
+    def __int__(self, function1, function2):
+        self.function1 = function1
+        self.function2 = function2
+
+    def generate(self, seed=None, start=DEFAULT_START, step=DEFAULT_STEP, stop=DEFAULT_STOP):
+        self.data1 = []
+        self.data2 = []
+        self.seed = seed
+        random.seed(self.seed)
+        range1 = list(float_range(start, stop, step))
+        range2 = list(float_range(start, stop, step))
+        range_prod = list(itertools.product(range1, range2))
+        for item in range_prod:
+            self.data1.append(self.function1(item[0], item[1]))
+            self.data2.append(self.function2(item[0], item[1]))
+
+    def plot(self, color=DEFAULT_COLOR, spot_size=DEFAULT_SPOT_SIZE, size=DEFAULT_IMAGE_SIZE, projection=DEFAULT_PROJECTION):
+        fig = plt.figure()
+        fig.set_size_inches(size[0], size[1])
+        ax = fig.add_subplot(111, projection=projection)
+        ax.scatter(self.data2, self.data1, alpha=0.1, c=color, s=spot_size)
+        ax.axis('off')
+
+
diff --git a/samila/params.py b/samila/params.py
index 4768057..b26b59c 100644
--- a/samila/params.py
+++ b/samila/params.py
@@ -1,2 +1,11 @@
 # -*- coding: utf-8 -*-
 """Samila params."""
+import math
+
+DEFAULT_START = -1 * math.pi
+DEFAULT_STOP = math.pi
+DEFAULT_STEP = 0.01
+DEFAULT_COLOR = "black"
+DEFAULT_IMAGE_SIZE = (10,10)
+DEFAULT_SPOT_SIZE = 0.01
+DEFAULT_PROJECTION = None