added GetOverlayAlpha() and GetLineWidth()

c/detectNet.cpp

@@ -52,17 +52,17 @@ detectNet::detectNet( float meanPixel ) : tensorNet()
 	mTracker   = NULL;
 	mMeanPixel = meanPixel;
 	mLineWidth = 2.0f;
-	
+
 	mNumClasses  = 0;
 	mClassColors = NULL;
 
 	mDetectionSets = NULL;
 	mDetectionSet  = 0;
 	mMaxDetections = 0;
+	mOverlayAlpha  = DETECTNET_DEFAULT_ALPHA;
 
 	mConfidenceThreshold = DETECTNET_DEFAULT_CONFIDENCE_THRESHOLD;
 	mClusteringThreshold = DETECTNET_DEFAULT_CLUSTERING_THRESHOLD;
-
 }
 
 
@@ -1136,4 +1136,6 @@ void detectNet::SetOverlayAlpha( float alpha )
 
 	for( uint32_t n=0; n < numClasses; n++ )
 		mClassColors[n].w = alpha;
+
+	mOverlayAlpha = alpha;
 }

c/detectNet.h

@@ -491,11 +491,21 @@ class detectNet : public tensorNet
 	 */
 	inline void SetClassColor( uint32_t classIndex, float r, float g, float b, float a=255.0f )	{ mClassColors[classIndex] = make_float4(r,g,b,a); }
 
+	/**
+	 * Retrieve the line width used during overlay when OVERLAY_LINES is used.
+	 */
+	inline float GetLineWidth() const							{ return mLineWidth; }
+
 	/**
 	 * Set the line width used during overlay when OVERLAY_LINES is used.
 	 */
 	inline void SetLineWidth( float width )						{ mLineWidth = width; }
 
+	/**
+	 * Retrieve the overlay alpha blending value for classes that don't have it explicitly set (between 0-255).
+	 */
+	inline float GetOverlayAlpha() const						{ return mOverlayAlpha; }
+
 	/**
  	 * Set overlay alpha blending value for all classes (between 0-255).
 	 */
@@ -533,6 +543,7 @@ class detectNet : public tensorNet
 
 	float mMeanPixel;
 	float mLineWidth;
+	float mOverlayAlpha;
 
 	float4* mClassColors;