diff --git a/src/pixel/bitmap.scad b/src/pixel/bitmap.scad
index 77d4cc23..d53368eb 100644
--- a/src/pixel/bitmap.scad
+++ b/src/pixel/bitmap.scad
@@ -6,21 +6,20 @@ function _bitmap_row(r_count, row_bits, dimension, range, center, invert) =
     ) 
     [for(i = range) if(row_bits[i] == bit) [i - half_d + offset_p, r_count + offset_p]];
 
-
-function bitmap(raw_data, center = true, invert = false) = 
+function bitmap(raw_data, center = false, invert = false) = 
     let(
         dimension = sqrt(len(raw_data)),
-        range = [0:dimension - 1],
+        to = dimension - 1,
+        range = [0:to],
         rows = [
-            for(row = range)
+            for(row = to; row > 0; row = row - 1)
                 [for(column = range)
                     raw_data[row * dimension + column]]
         ],
-        offset_i = dimension / 2 - 1
+        offset_i = dimension / 2
     )
     [
         for(i = range) 
-        let(row = _bitmap_row(-i + offset_i, rows[i], dimension, range, center, invert))
+        let(row = _bitmap_row(i - offset_i, rows[i], dimension, range, center, invert))
         if(row != []) each row
-        
     ];
\ No newline at end of file