diff --git a/Display.cpp b/Display.cpp
index e9acf23..3596edb 100644
--- a/Display.cpp
+++ b/Display.cpp
@@ -6,13 +6,11 @@
 #include <iostream>
 
 #include "Display.h"
+#include "Point.h"
 
 void Display::show()
 {
     sf::RenderWindow window(sf::VideoMode(WIDTH, HEIGHT), "SFML works!");
-    sf::CircleShape shape(100.f);
-    shape.setFillColor(sf::Color::Green);
-
     while (window.isOpen())
     {
         sf::Event event;
@@ -23,7 +21,18 @@ void Display::show()
         }
 
         window.clear();
-        window.draw(shape);
+        for (auto &pt : m_points)
+        {
+            sf::CircleShape shape(10.f);
+            shape.setPosition(pt.x(), pt.y());
+            shape.setFillColor(sf::Color::Green);
+            window.draw(shape);
+        }
         window.display();
     }
+}
+
+void Display::setData(std::vector<Point> pts)
+{
+    m_points = pts;
 }
\ No newline at end of file
diff --git a/Display.h b/Display.h
index 761bafc..9ab88ca 100644
--- a/Display.h
+++ b/Display.h
@@ -1,13 +1,17 @@
 #pragma once
 
+class Point;
+
 #define WIDTH 800
 #define HEIGHT 600
 
 class Display
 {
+private:
+    std::vector<Point> m_points;
+
 public:
     void show();
 
-    // TODO:
-    // setData for used stuff... current triangle, all points, ladida...
+    void setData (std::vector<Point>);
 };
\ No newline at end of file
diff --git a/main.cpp b/main.cpp
index a0d1ded..a0efeff 100644
--- a/main.cpp
+++ b/main.cpp
@@ -9,6 +9,17 @@
 #include "Point.h" // TODO: check if there is a usable SFML or c++ class
 #include "Timing.h"
 
+// TODOs:
+// - use SFML vec2 instead of Point class
+// - calc min and max points for x, y
+//      *) just a loop and save/override points -> maybe in Data Block?
+//      *) std::minmax_element for x, y -> not saving just temp draw
+//         https://en.cppreference.com/w/cpp/algorithm/minmax_element
+// - actual algorithm :p
+// - architecture:
+//      # vis in own thread, calls "lib" functions?
+//      # seperate implementation for vis and perf?
+
 int main (int argc, char **argv)
 {
     // read program arguments
@@ -65,6 +76,7 @@ int main (int argc, char **argv)
         }
     }
 
+    // TODO: need sort here?
     for (Point& pt : points)
     {
         std::cout << "pt: " << pt.x() << ", " << pt.y() << std::endl;
@@ -72,7 +84,9 @@ int main (int argc, char **argv)
 
     if (vis)
     {
+        // TODO: use data as ctor argument? pointer?
         Display display;
+        display.setData(points);
         display.show();
     }