Index: trunk/Ohana/src/kapa2/include/structures.h
===================================================================
--- trunk/Ohana/src/kapa2/include/structures.h	(revision 40570)
+++ trunk/Ohana/src/kapa2/include/structures.h	(revision 41157)
@@ -48,4 +48,6 @@
   unsigned long  back;	      // basic background color
 
+  float smooth_sigma; // anti-aliasing smoothing scale
+
   unsigned long  overlay_color[NOVERLAYS]; // image plotting colors 
 } Graphic;
@@ -131,9 +133,23 @@
 } Overlay;
   
-typedef struct {
-  float *x, *y, *z, *dxp, *dxm, *dyp, *dym;
-  int Npts;
-  int style, ptype, ltype, color, etype, ebar;
-  double lweight, size;
+// a set of objects all have the same basic properties
+typedef struct {
+  float *x; // x-coordinates of the points
+  float *y; // y-coordinates of the points
+  float *z; // size/colorscale for points
+  float *dxp; // lower-errorbar in x
+  float *dxm; // upper-errorbar in x
+  float *dyp; // lower-errorbar in y
+  float *dym; // upper-errorbar in y
+  int Npts;   // number of points in this set
+  int style;  // how are the object draw: CONNECT, HISTOGRAM,
+  int ptype;  // shape of object at each point
+  // ptype is overloaded for NPOLYGON to be the number of points / polygon
+  int ltype;  // style of line (solid, dot, dash, etc)
+  int color;  // color for point (if not colorscaled)
+  int etype;  // errorbars to draw (0x01 = y, 0x02 = x)
+  int ebar;   // draw a cap on the error bar
+  double lweight; // line thickness
+  double size; // size of the object
   double x0, x1, y0, y1;  /* limits for this object */
   double alpha;