Diff: NextGen-Exerciser-Main.cpp

Revision:

2:346119b3db6c

Parent:

1:01394e5db95b

--- a/NextGen-Exerciser-Main.cpp	Thu May 30 18:24:08 2019 +0000
+++ b/NextGen-Exerciser-Main.cpp	Fri May 31 22:43:55 2019 +0000
@@ -184,11 +184,6 @@
     // We will be using the LCD so instantiate an object locally
     static LCD_DISCO_F429ZI st_lcd;
     
-    // When searching for the intersection of AC and DC curves, we store the values here
-    static uint16_t u16_firstIntersectionHeight;
-    static uint16_t u16_secondIntersectionHeight;
-
-    
 // ----------------------------------------------------------------------
 // MainProcessDecimatedSpectrum()
 //
@@ -355,93 +350,6 @@
 }
 
 // ----------------------------------------------------------------------
-// MainFindACandDCintersections()
-//
-// This function attempts to locate the intersections where the AC and
-// DC spectra curve meets. It locates the last intersection point 
-// encountered sweeping from left to right across the spectra, and for
-// the second intersection point it locates the first intersection
-// point.
-//
-// In this way we find the two locations at LCT_HEIGHT which indicates
-// the surface area volume arena of the water peak, bounded by the AC
-// curve to the top of the peak, and the DC curve at the bottom of 
-// the curve.
-//
-// ----------------------------------------------------------------------
-static void MainFindACandDCintersections(void)
-{
-    uint16_t u16_searchLoop        = 0;
-    bool     b_atFirstIntersection = false;
-    uint16_t u16_possibleFirst     = 0;
-    uint16_t u16_areaACMin         = 0;
-    uint16_t u16_areaACMax         = 0;
-#if 0    
-    uint16_t u16_areaDCMin         = 0;
-    uint16_t u16_areaDCMax         = 0;
-#endif
-
-    // Go through the 256 sample within both the AC and the DC
-    // spectra and first locate the first insersection point and
-    // then the second intersection point
-    for (u16_searchLoop = 0; u16_searchLoop < 256; u16_searchLoop++)
-    {
-        // Make sure that what we're looking at can be generally examined
-        if ((int)f_decimatedACSpectrum[u16_searchLoop] > 10 && 
-            (int)f_decimatedDCSpectrum[u16_searchLoop] > 10)
-        {
-            // Each point on the plot is examined to see if the point is
-            // plus or minus 5 pixels to determine if they intersect.
-            u16_areaACMin = (int)f_decimatedACSpectrum[u16_searchLoop] - 5;
-            u16_areaACMax = (int)f_decimatedACSpectrum[u16_searchLoop] + 5;
-#if 0
-            u16_areaDCMin = (int)f_decimatedDCSpectrum[u16_searchLoop] - 5;
-            u16_areaDCMax = (int)f_decimatedDCSpectrum[u16_searchLoop] + 5;
-#endif
-             
-            // Do these two points intersect?
-            if ((int)f_decimatedDCSpectrum[u16_searchLoop] >= u16_areaACMin &&
-                (int)f_decimatedDCSpectrum[u16_searchLoop] <= u16_areaACMax)
-            {
-                // Do we have the first intersection already?
-                if (0 != u16_firstIntersectionHeight)
-                {
-                    // We have the first intersection so this is the second
-                    u16_secondIntersectionHeight = u16_searchLoop;
-                
-                    // We have found both intersections so we are done
-                    break;
-                }
-                else
-                {
-                    // We are still searching for the first intersection
-                    // so because we intersect here, note that we found it
-                    b_atFirstIntersection = true;
-
-                    // Record the point at which the first intersected
-                    u16_possibleFirst = u16_searchLoop;
-                }
-            }
-            else
-            {
-                // These two points do not intersect.
-                // Did we already find the first intersection point?
-                if (true == b_atFirstIntersection)
-                {
-                    // We found the intersection point and then left the area where
-                    // it intersected, so the last possible intersection point is
-                    // the first area of intersection
-                    u16_firstIntersectionHeight = u16_possibleFirst;
-                
-                    // Since we have the first intersectiopn point located
-                    b_atFirstIntersection = false;
-                }
-            }
-        }
-    }
-}
-
-// ----------------------------------------------------------------------
 // MainInit()
 //
 // This function will:
@@ -452,12 +360,6 @@
 // ----------------------------------------------------------------------
 static void MainInit(void)
 {
-    uint8_t ach_intersectionString[31] = { 0 };
-    
-    // Initialize the module's locall-held data
-    u16_firstIntersectionHeight  = 0;
-    u16_secondIntersectionHeight = 0;
-    
     // Bring the LCD up and set its various colors
     st_lcd.Clear(LCD_COLOR_BLACK);
     st_lcd.SetBackColor(LCD_COLOR_BLACK);
@@ -466,16 +368,6 @@
     // Process the decimated spectrum and then plot it
     MainProcessDecimatedSpectrum();
     MainPlotFinalSpectrum();
-    
-    // Search the AC and DC plots for where they intersect
-    MainFindACandDCintersections();
-    
-    (void)sprintf((char *)ach_intersectionString, 
-        "Intersections %d and %d", 
-        u16_firstIntersectionHeight,
-        u16_secondIntersectionHeight);
-        
-    st_lcd.DisplayStringAt(0, LINE(1), (uint8_t *)ach_intersectionString, LEFT_MODE);
 }
 
 // ----------------------------------------------------------------------