diff --git a/app.py b/app.py
index 2db701b..d644fc4 100644
--- a/app.py
+++ b/app.py
@@ -19,6 +19,21 @@
 docu_color=svgwrite.rgb(10, 10, 16, '%')
 docu_width=0.5
 
+# if you want red 'X' labels, leave dummy_labels set to 1
+# for "real" labels, change dummy_labels=0
+# if dummy_labels == 0, then:
+#    rotate_text turns on/off rotating the text to match the angle of the tics
+#    you must fill label_array[] with the values/strings of your labels, before full_label() is called
+#    set debug_labels=1 to see the labels printed out to console as they are put in the svg
+# the "demo" labels work "correctly" in either mode: real or dummy
+dummy_labels=1
+rotate_text=0
+label_array=[]
+debug_labels=0
+label_x_fudge=[]
+xoffset=0
+yoffset=0
+
 # a constant for approximate sizing
 szfactor=5.64
 
@@ -29,8 +44,8 @@
 # ang_n is between 0 (min deflection) and 1 (max deflection)
 def toxy(h, ang_n):
     a=(ang_n*mechangle) - (mechangle/2)
-    y=0-math.cos(a)*h
-    x=math.sin(a)*h
+    y=yoffset + 0 - math.cos(a)*h
+    x=xoffset + math.sin(a)*h
     return x, y
 
 # draw a full arc at height h, with p points
@@ -168,22 +183,52 @@ def log_full_ticks(h, d, len_L, len_M, len_S):
 
 # text labels at height h, total of p points.
 def full_label(h, p):
+    if dummy_labels==0:
+        # compute the x fudge factors based on outer end of tick mark
+        for i in range (0, p):
+            x,y = toxy(h, (i/(p-1)))
+            x1,y1=toxy(h+big_tick_length, (i/(p-1)))
+            label_x_fudge.append(x1-x)
+        # adjust values so right-most x fudge factor is 0.0
+        max_x1=label_x_fudge[p-1]
+        for i in range (0, p):
+            label_x_fudge[i]=label_x_fudge[i]-max_x1
+        if debug_labels>0:
+            print(label_x_fudge)
     for i in range (0, p):
         rotate=[]
         a=((i/(p-1))*mechangle) - (mechangle/2)
+        if debug_labels>0:
+            print("a1 =", a)
         a=a*360/(2*math.pi)
+        if debug_labels>0:
+            print("a2 =", a)
         rotate.append(a)
         x,y = toxy(h, (i/(p-1)))
-        dwg.add(dwg.text(
-            "x", insert=(x, y), fill='red', rotate=rotate)
-        )
+        if dummy_labels>0:
+            dwg.add(dwg.text( 'x', insert=(x, y), fill='red', rotate=rotate))
+        else:
+            if debug_labels>0:
+                print("before fudge h =", h, ", i/(p-1) =", i/(p-1), ", x =", x, " y =", y)
+            x=x+label_x_fudge[i]
+            if debug_labels>0:
+                print("after fudge  h =", h, ", i/(p-1) =", i/(p-1), ", x =", x, " y =", y)
+            if rotate_text>0:
+                if debug_labels>0:
+                    print(i, " -> ", label_array[i])
+                dwg.add(dwg.text( label_array[i], insert=(x, y), fill='black', rotate=rotate))
+
+            else:
+                if debug_labels>0:
+                    print(i, " -> ", label_array[i])
+                dwg.add(dwg.text( label_array[i], insert=(x, y), fill='black'))
 
 ################# create output file #######################
 
 dwg = svgwrite.Drawing('out.svg', profile='tiny')
 # add crosshair at meter spindle
-dwg.add(dwg.line((-1, 0), (1, 0), stroke=docu_color, stroke_width=docu_width))
-dwg.add(dwg.line((0, -1), (0, 1), stroke=docu_color, stroke_width=docu_width))
+dwg.add(dwg.line((-1+xoffset, yoffset), (1+xoffset, yoffset), stroke=docu_color, stroke_width=docu_width))
+dwg.add(dwg.line((xoffset, -1+yoffset), (xoffset, 1+yoffset), stroke=docu_color, stroke_width=docu_width))
 
 
 ################ main code #################################
@@ -194,9 +239,14 @@ def full_label(h, p):
 # have a total of 31 ticks (i.e. per half degree)
 # every 10 ticks (5 deg C) for large markings
 # every 2 ticks (1 deg C) for medium markings
+
+for i in range (15,31):
+     label_array.append(i)
+
 h=265 # 265 / 5.64 = 47mm 
 full_arc(h, 31)
 full_ticks(h, 31, 10, 5, 4, 10, 2)
+big_tick_length=10
 full_label(h+12, 16)
 # partial arcs, ideal for adornment on a meter dial, etc
 #for i in range (0,15):
@@ -210,10 +260,17 @@ def full_label(h, p):
 
 # Humidity indication:
 # sector style. 20-90 percent RH, this is a total of 7 sectors
+
+label_array=[]
+for i in range (2,10):
+     label_array.append(i * 10)
+label_array[6]="%RH"
+
 h=225
 sectors=7
 for i in range (0,sectors):
     sector(h, 10, 6, i, sectors)
+label_x_fudge=[]
 full_label(h+12, 8)
 # half-sectors for shading in green:
 sectors=14
@@ -223,9 +280,13 @@ def full_label(h, p):
 # VOC indication:
 # traditional meter style, but with log ticks
 # need 5 decades
+
+label_array=["1", "10", "100", "1K", "VOC", "100k"]
+
 h=185
 full_arc(h, 51)
 log_full_ticks(h, 5, 10, 4, 4)
+label_x_fudge=[]
 full_label(h+12, 6)
 # no safe definition for general VOC, but a sector will be shown for less than 27 ppb (formaldehyde):
 sectors=3.5
@@ -234,9 +295,13 @@ def full_label(h, p):
 # Co2 indication:
 # traditional meter style, but with log ticks
 # need 3 decades
+
+label_array=["1K", "10K", "CO2", "100k"]
+
 h=145
 full_arc(h, 61)
 log_full_ticks(h, 3, 10, 4, 4)
+label_x_fudge=[]
 full_label(h+12, 4)
 # 250-1000ppm is good. The settings below will draw a sector for 300-1000ppm which is good enough
 sectors=6