From: Callum <callum@callum-ubuntu.(none)>
Date: Fri, 11 Oct 2013 05:26:54 +0000 (+0800)
Subject: simple test function
X-Git-Url: https://git.ucc.asn.au/?p=matches%2FMCTX3420.git;a=commitdiff_plain;h=26d56750cbdc70df836612ab8d142a9a21bf2f35

simple test function
---

diff --git a/server/dilatometer.c b/server/dilatometer.c
index 6610cac..dd578d3 100644
--- a/server/dilatometer.c
+++ b/server/dilatometer.c
@@ -15,6 +15,36 @@ static CvMat * g_data = NULL;
 /** Camera capture pointer **/
 static CvCapture * g_capture = NULL;
 
+/**
+ * Create a test image
+ */
+void Dilatometer_TestImage()
+{
+	
+	CvMat *g_dataRGB;
+	g_dataRGB = cvCreateMat(480, 640, CV_8UC3); //32
+
+	//Make a rectangle from col=300 to 500, row=150 to 350
+	/*for (int x = 100; x < 500; ++x)
+	{
+		CvScalar s; 
+		s.val[0] = 150; s.val[1] = 233; s.val[2] = 244;
+ 		cvSet2D(g_dataRGB,150,x,s);
+		cvSet2D(g_dataRGB,350,x,s);
+	}*/
+	for (int y = 0; y < 480; ++y)
+	{
+		CvScalar s; 
+		s.val[0] = 200; s.val[1] = 233; s.val[2] = 244;
+ 		cvSet2D(g_dataRGB,y,100,s);
+		cvSet2D(g_dataRGB,y,500,s);
+	}
+	if (g_data == NULL)
+	{
+		g_data = cvCreateMat(g_dataRGB->rows,g_dataRGB->cols,CV_8UC1); //IPL_DEPTH_8U?
+		cvCvtColor(g_dataRGB,g_data,CV_RGB2GRAY);
+	}
+}	
 
 /**
  * Initialise the dilatometer
@@ -43,9 +73,9 @@ void Dilatometer_Cleanup()
  * Get an image from the Dilatometer
  */
 static void Dilatometer_GetImage()
-{
-	//Need to supply test image
-
+{	
+	//Test image
+	Dilatometer_TestImage();
 	//Need to implement camera
 }
 /**
@@ -63,7 +93,7 @@ double Dilatometer_Read(int samples)
 	// If the number of samples is greater than the image height, sample every row
 	if( samples > height)
 	{
-		Log(LOGNOTE, "Number of samples is greater than the dilatometer image height, sampling every row instead.\n");
+		//Log(LOGNOTE, "Number of samples is greater than the dilatometer image height, sampling every row instead.\n");
 		samples = height;
 	}
 
@@ -72,25 +102,39 @@ double Dilatometer_Read(int samples)
 	// The average width of the can
 	double average_width;
 	int sample_height;
+	printf("here2; %d\n", width);
 	for (int i=0; i<samples; i++)
 	{
 		// Contains the locations of the 2 edges
-		double edges[2] = {0};
+		double edges[2] = {0.0,0.0};
+		printf("edges init %f; %f\n", edges[0], edges[1]);
 		int pos = 0;	// Position in the edges array (start at left edge)
 		int num = 0;	// Keep track of the number of columns above threshold
 
 		// Determine the position in the rows to find the edges. 
 		sample_height = ceil(height * (i + 1) / samples) -1;
-		
+		printf("sample height is %d\n", sample_height);
+
+		//CvScalar test = cvGet2D(g_data, 150,300);
+		//printf("test is %f,%f,%f,%f\n", test.val[0], test.val[1], test.val[2], test.val[3]);
+
+
 		for ( int col = 0; col < width; col++)
 		{
-			if ( CV_MAT_ELEM( *g_data, double, col, sample_height) > THRES)
+			//if ( CV_MAT_ELEM( *g_data, double, col, sample_height) > THRES)
+			
+			//printf("val is %f\n", cvGet2D(g_data, col, sample_height));
+			//printf("position is col: %d, row: %d\n",col, sample_height);
+			CvScalar value = cvGet2D(g_data, sample_height, col);
+			//printf("value is %f\n", value.val[0]);
+			if( value.val[0]> THRES)
 			{
-				edges[pos] += col;
+				edges[pos] += (double) col;
 				num++;
+				printf("here; %f\n", edges[pos]);
 			}
 			// If num > 0 and we're not above threshold, we have left the threshold of the edge
-			else if( num > 0);
+			else if( num > 0)
 			{
 				// Find the mid point of the edge
 				edges[pos] /= num;
@@ -108,6 +152,23 @@ double Dilatometer_Read(int samples)
 		average_width += (edges[1] - edges[0]);
 	}
 		average_width /= samples;
+		printf("the average width is %f\n", average_width);
 		return average_width;
 }
 
+/**
+ * For testing purposes
+ */
+int main(int argc, char ** argv)
+{
+	//cvNamedWindow( "display", CV_WINDOW_AUTOSIZE );// Create a window for display.
+	//gettimeofday(&start, NULL);
+	
+	Dilatometer_Init();
+
+	cvNamedWindow( "display", CV_WINDOW_AUTOSIZE);
+	cvShowImage("display", g_data);
+	cvWaitKey(0); 	
+	Dilatometer_Read(5);
+}
+