IoT Ox / Mbed 2 deprecated MainSketch Featured

Contains the main execution of the clock uses headers to import functions

Dependencies:   RTC-DS1307 SPI_TFT_ILI9341 TFT_fonts mbed tsi_sensor

Fork of TFT_Mikroelectronika_IL9341_sketchpad by Oxford CWM Team

Diff: drawhands.h

Revision:
39:4b70d28cb273
Parent:
38:3fe3bafbf0c7
Child:
41:3f2e75e7fbeb
--- a/drawhands.h	Thu May 25 19:54:51 2017 +0000
+++ b/drawhands.h	Fri May 26 08:28:27 2017 +0000
@@ -1,18 +1,19 @@
 
+//early version of the analog clock draw function
 void draw_hands ( int x0 , int y0 , int r , float minutes , int hours , int color) 
    {
           int x1,y1,x2,y2;
           int rs = 0.6 * r ; // shorter moving hand
-          int m = minutes ;        
-          int k = hours % 12; 
-          double angle2 = k * M_PI / 6 ;
+          int m = minutes ;  // minutes      
+          int k = hours % 12;  // hours
+          double angle2 = k * M_PI / 6 ; // scaling 
           double angle = m * M_PI / 30 ;
-          x1 = rs * sin(angle) + x0;
+          x1 = rs * sin(angle) + x0; // trigonometric functions to get values
           y1 = rs * cos(angle) + y0;
           x2 = r * sin(angle2) + x0;
           y2 = r * cos(angle2) + y0;
-          TFT.line(x0, y0, x2, y2, color);
-          TFT.line(x0, y0, x1, y1, color); 
+          TFT.line(x0, y0, x2, y2, color); //draw line
+          TFT.line(x0, y0, x1, y1, color); //draw line
   }