scaling parameter

fux_kinect.cpp

@@ -171,16 +171,27 @@ void fux_kinect::depth_cb(freenect_device *dev, void *v_depth, uint32_t timestam
 	uint16_t *depth = (uint16_t*)v_depth;
 
 	pthread_mutex_lock(gl_backbuf_mutex);
-
+
+	int depth_range = kinect_max - kinect_min;
+
+
 	for (i=0; i<640*480; i++) {		
 		//global_depth[i] = depth[i];
 		//depth_mid[i] = depth[i];
 
 	   int pval;
 
-	   if(depth[i] >  (float)kinect_min && depth[i] < (float)kinect_max )
+	   if(depth[i] > (float)kinect_min)
 	   {
-	       pval = ceil((1-(depth[i]/(float)kinect_max))*255.f);    
+
+		if (depth[i] > (float)kinect_max)
+		{
+		 pval = 0;
+		}else{
+		 //depth[i] - kinect_max
+	         pval = (1 - (depth[i] - (float)kinect_min)/(float)depth_range) * 255.f;//ceil((1-(depth[i]/(float)kinect_max))*255.f);    
+		}
+
 	   }else{
 	       pval = 0;    
 	   }

kinect.pd

@@ -1,4 +1,4 @@
-#N canvas 833 136 450 300 10;
+#N canvas 903 209 450 300 10;
 #X msg 36 18 create;
 #X obj 49 39 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1 1 1
 ;
@@ -7,20 +7,31 @@
 #X obj 240 91 fux_kinect;
 #X obj 240 68 gemhead;
 #X obj 240 113 pix_texture;
-#X obj 240 135 rectangle 4 3;
+#X obj 234 215 rectangle 4 3;
 #X msg 98 15 dimen 800 600;
 #X text 299 50 Elevation;
 #X obj 49 152 loadbang;
 #X msg 50 195 1;
 #X msg 111 61 destroy;
+#X floatatom 264 25 5 0 0 0 - - -;
+#X floatatom 335 22 5 0 0 0 - - -;
+#X text 384 18 MIN;
+#X text 277 7 MAX;
+#X obj 246 162 scaleXYZ;
+#X floatatom 372 113 5 0 0 0 - - -;
 #X connect 0 0 3 0;
 #X connect 1 0 3 0;
 #X connect 2 0 4 1;
 #X connect 4 0 6 0;
 #X connect 5 0 4 0;
-#X connect 6 0 7 0;
+#X connect 6 0 17 0;
 #X connect 8 0 3 0;
 #X connect 10 0 0 0;
 #X connect 10 0 11 0;
 #X connect 11 0 1 0;
 #X connect 12 0 3 0;
+#X connect 13 0 4 2;
+#X connect 14 0 4 3;
+#X connect 17 0 7 0;
+#X connect 18 0 17 1;
+#X connect 18 0 17 2;