--- gerber.c.orig	Wed Nov 21 13:10:19 2001
+++ gerber.c	Wed Nov 21 13:14:12 2001
@@ -314,18 +314,22 @@
     switch(a) {
     case 1 : /* Exposure on */
 	state->aperture_state = ON;
+	state->changed = 1;
 	break;
     case 2 : /* Exposure off */
 	state->aperture_state = OFF;
+	state->changed = 1;
 	break;
     case 3 : /* Flash aperture */
 	state->aperture_state = FLASH;
+	state->changed = 1;
 	break;
     default: /* Aperture in use */
 	if ((a >= APERTURE_MIN) && (a <= APERTURE_MAX)) 
 	    state->curr_aperture = a;
 	else
 	    err(1, "Aperture out of bounds:%d\n", a);
+	state->changed = 0;
     }
     
     return;
@@ -772,8 +776,18 @@
     net->cirseg->angle1 = RAD2DEG(alfa);
     net->cirseg->angle2 = RAD2DEG(beta);
 
+    /*
+     * Make sure it's always positive angles
+     */
+    
+    if (net->cirseg->angle1 < 0)
+	net->cirseg->angle1 = 360 + net->cirseg->angle1;
+    
+    if (net->cirseg->angle2 < 0)
+	net->cirseg->angle2 = 360 + net->cirseg->angle2;
+
     if(net->cirseg->angle2 == 0)
 	net->cirseg->angle2 = 360;
-
+    
     return;
 } /* calc_cirseg_mq */