diff --git a/SketchWidget.py b/SketchWidget.py
index 6e794a7..418a3df 100644
--- a/SketchWidget.py
+++ b/SketchWidget.py
@@ -90,10 +90,8 @@ class SketchWidget:
         return True
 
     def drawLine(self, shape):
-        glBegin(GL_LINES)
-        glVertex(shape.vars[0], shape.vars[1])
-        glVertex(shape.vars[2], shape.vars[3])
-        glEnd()
+        self.drawFilledLine(shape.vars[0], shape.vars[1],
+                shape.vars[2], shape.vars[3], 0.03)
 
     def drawCircle(self, shape):
         glBegin(GL_LINE_LOOP)
@@ -103,3 +101,20 @@ class SketchWidget:
                     shape.vars[1] +
                     shape.vars[2] * math.cos(i * 2 * math.pi / 24.0))
         glEnd()
+
+    def drawFilledLine(self, x0, y0, x1, y1, size):
+        glBegin(GL_QUADS)
+        angle = math.atan2(y1 - y0, x1 - x0)
+        ninety = math.pi / 2
+        glVertex(x0 + size * math.cos(angle + ninety),
+                y0 + size * math.sin(angle + ninety))
+        glVertex(x0 + size * math.cos(angle - ninety),
+                y0 + size * math.sin(angle - ninety))
+        glVertex(x1 + size * math.cos(angle - ninety),
+                y1 + size * math.sin(angle - ninety))
+        glVertex(x1 + size * math.cos(angle + ninety),
+                y1 + size * math.sin(angle + ninety))
+        glEnd()
+
+    def drawFilledCircle(self, x, y, radius, steps):
+        pass