Some buf fixes and small enhancements

pages/onevalue.py

@@ -27,5 +27,6 @@ class OneValue(Page):
         if self.ref1.value:
             ctx.show_text(self.ref1.format())
         else:
-            ctx.show_text(self.placeholder)
+            #print(dir(self.bd))
+            ctx.show_text("---") # self.bd.getPlaceholder())
         ctx.stroke()

pages/skyview.py

@@ -17,21 +17,21 @@ class SkyView(Page):
     def __init__(self, pageno, cfg, boatdata):
         super().__init__(pageno, cfg, boatdata)
 
-    def pol2cart(azimuth, elevation):
+    def pol2cart(azimut, elevation):
         '''
         Polar to Cartesian coordinates within the horizon circle.
         azimuth in radians
-        x = math.sin(azimuth) * elevation * self.radius
-        y = math.cos(azimuth) * elevation * self.radius
+        x = math.sin(azimut) * elevation * self.radius
+        y = math.cos(azimut) * elevation * self.radius
         '''
         pass
         # (x, y) = self.pol2cart(sat.az, sat.el)
-        
+
     def draw(self, ctx):
 
         # Name
         ctx.select_font_face("Ubuntu", cairo.FontSlant.NORMAL, cairo.FontWeight.BOLD)
-        #ctx.set_font_size(32) 
+        #ctx.set_font_size(32)
         #self.draw_text_center(ctx, 200, 40, "Satellite Info")
 
         # Spezialseite
@@ -70,7 +70,7 @@ class SkyView(Page):
             ctx.show_text(f"{s:02d}")
             ctx.rectangle(305, y-12, 85, 14)
             ctx.stroke()
-            
+
         ctx.set_line_width(1.0)
         for s in self.bd.sat.values():
             x = cx + math.sin(s.azimuth) * s.elevation * r
@@ -82,4 +82,4 @@ class SkyView(Page):
 
         # Satellitenliste mit SNR-Balken sortiert nach nummer
         for prn_num in sorted(self.bd.sat):
-            print(prn_num)           
+            print(prn_num)