Index: trunk/doc/GRBS/src/Makefile
===================================================================
--- trunk/doc/GRBS/src/Makefile	(revision 1228)
+++ trunk/doc/GRBS/src/Makefile	(revision 1229)
@@ -1,4 +1,4 @@
-all: ../geo.svg ../conc_pp_oa.svg
+all: ../geo.svg ../conc_pp_oa.svg ../conc_pp_ea.svg
 
 ../%.svg: %.lht
 	pcb-rnd -x svg --cam $@=doc $^
Index: trunk/doc/GRBS/src/conc_pp_ea.lht
===================================================================
--- trunk/doc/GRBS/src/conc_pp_ea.lht	(nonexistent)
+++ trunk/doc/GRBS/src/conc_pp_ea.lht	(revision 1229)
@@ -0,0 +1,447 @@
+ha:pcb-rnd-board-v8 {
+
+ li:styles {
+   ha:0.5mm {
+    via_proto = 0
+    thickness = 0.5mm
+    text_thick = 0.0
+    text_scale = 200
+    clearance = 20.0mil
+   }
+   ha:0.2mm {
+    via_proto = 1
+    thickness = 0.2mm
+    text_thick = 0.0
+    text_scale = 100
+    clearance = 20.0mil
+   }
+   ha:0.075mm {
+    via_proto = 2
+    thickness = 0.075mm
+    text_thick = 0.0
+    text_scale = 100
+    clearance = 25.0mil
+   }
+   ha:Sig-tight {
+    via_proto = 3
+    thickness = 10.0mil
+    text_thick = 0.0
+    text_scale = 100
+    clearance = 12.0mil
+   }
+ }
+
+ ha:meta {
+   ha:size {
+    thermal_scale = 0.500000
+    x = 120.0mm
+    y = 84.0mm
+   }
+   ha:grid {
+    spacing = 1.0mm
+    offs_x = 0.0
+    offs_y = 0.0
+   }
+ }
+
+ ha:data {
+  li:padstack_prototypes {
+
+   ha:ps_proto_v6.0 {
+     hdia=0.8mm; hplated=1; htop=0; hbottom=0;
+     li:shape {
+
+       ha:ps_shape_v4 {
+        ha:ps_circ { x=0.0; y=0.0; dia=2.0mm;        }
+        ha:combining {        }
+        ha:layer_mask {
+         copper = 1
+         top = 1
+        }
+        clearance=0.0
+       }
+
+       ha:ps_shape_v4 {
+        ha:ps_circ { x=0.0; y=0.0; dia=2.0mm;        }
+        ha:combining {        }
+        ha:layer_mask {
+         bottom = 1
+         copper = 1
+        }
+        clearance=0.0
+       }
+
+       ha:ps_shape_v4 {
+        ha:ps_circ { x=0.0; y=0.0; dia=2.0mm;        }
+        ha:combining {        }
+        ha:layer_mask {
+         copper = 1
+         intern = 1
+        }
+        clearance=0.0
+       }
+     }
+   }
+
+   ha:ps_proto_v6.1 {
+     hdia=1.0mm; hplated=1; htop=0; hbottom=0;
+     li:shape {
+
+       ha:ps_shape_v4 {
+        ha:ps_circ { x=0.0; y=0.0; dia=2.2mm;        }
+        ha:combining {        }
+        ha:layer_mask {
+         copper = 1
+         top = 1
+        }
+        clearance=0.0
+       }
+
+       ha:ps_shape_v4 {
+        ha:ps_circ { x=0.0; y=0.0; dia=2.2mm;        }
+        ha:combining {        }
+        ha:layer_mask {
+         bottom = 1
+         copper = 1
+        }
+        clearance=0.0
+       }
+
+       ha:ps_shape_v4 {
+        ha:ps_circ { x=0.0; y=0.0; dia=2.2mm;        }
+        ha:combining {        }
+        ha:layer_mask {
+         copper = 1
+         intern = 1
+        }
+        clearance=0.0
+       }
+     }
+   }
+
+   ha:ps_proto_v6.2 {
+     hdia=1.2mm; hplated=1; htop=0; hbottom=0;
+     li:shape {
+
+       ha:ps_shape_v4 {
+        ha:ps_circ { x=0.0; y=0.0; dia=3.5mm;        }
+        ha:combining {        }
+        ha:layer_mask {
+         copper = 1
+         top = 1
+        }
+        clearance=0.0
+       }
+
+       ha:ps_shape_v4 {
+        ha:ps_circ { x=0.0; y=0.0; dia=3.5mm;        }
+        ha:combining {        }
+        ha:layer_mask {
+         bottom = 1
+         copper = 1
+        }
+        clearance=0.0
+       }
+
+       ha:ps_shape_v4 {
+        ha:ps_circ { x=0.0; y=0.0; dia=3.5mm;        }
+        ha:combining {        }
+        ha:layer_mask {
+         copper = 1
+         intern = 1
+        }
+        clearance=0.0
+       }
+     }
+   }
+
+   ha:ps_proto_v6.3 {
+     hdia=0.8mm; hplated=1; htop=0; hbottom=0;
+     li:shape {
+
+       ha:ps_shape_v4 {
+        ha:ps_circ { x=0.0; y=0.0; dia=64.0mil;        }
+        ha:combining {        }
+        ha:layer_mask {
+         copper = 1
+         top = 1
+        }
+        clearance=0.0
+       }
+
+       ha:ps_shape_v4 {
+        ha:ps_circ { x=0.0; y=0.0; dia=64.0mil;        }
+        ha:combining {        }
+        ha:layer_mask {
+         bottom = 1
+         copper = 1
+        }
+        clearance=0.0
+       }
+
+       ha:ps_shape_v4 {
+        ha:ps_circ { x=0.0; y=0.0; dia=64.0mil;        }
+        ha:combining {        }
+        ha:layer_mask {
+         copper = 1
+         intern = 1
+        }
+        clearance=0.0
+       }
+     }
+   }
+  }
+
+   li:objects {
+   }
+   li:layers {
+
+    ha:doc {
+     lid=0
+     group=3
+     ha:combining {     }
+
+      li:objects {
+       ha:line.7 {
+        x1=59.0mm; y1=18.0mm; x2=61.0mm; y2=18.0mm; thickness=0.075mm; clearance=50.0mil;
+        ha:flags {
+         clearline=1
+        }
+       }
+       ha:line.10 {
+        x1=60.0mm; y1=19.0mm; x2=60.0mm; y2=17.0mm; thickness=0.075mm; clearance=50.0mil;
+        ha:flags {
+         clearline=1
+        }
+       }
+       ha:line.13 {
+        x1=60.0mm; y1=18.0mm; x2=9.1mm; y2=65.3mm; thickness=0.5mm; clearance=40.0mil;
+        ha:flags {
+         clearline=1
+        }
+       }
+       ha:line.41 {
+        x1=8.1mm; y1=65.3mm; x2=10.1mm; y2=65.3mm; thickness=0.075mm; clearance=50.0mil;
+        ha:flags {
+         clearline=1
+        }
+       }
+       ha:line.44 {
+        x1=9.1mm; y1=66.3mm; x2=9.1mm; y2=64.3mm; thickness=0.075mm; clearance=50.0mil;
+        ha:flags {
+         clearline=1
+        }
+       }
+       ha:line.51 {
+        x1=52.844582mm; y1=32.310835mm; x2=24.023249mm; y2=59.529677mm; thickness=0.5mm; clearance=40.0mil;
+        ha:flags {
+         clearline=1
+        }
+       }
+       ha:line.56 {
+        x1=52.878655mm; y1=32.278655mm; x2=49.218737mm; y2=28.018737mm; thickness=0.075mm; clearance=50.0mil;
+        ha:flags {
+         clearline=1
+        }
+       }
+       ha:line.59 {
+        x1=49.709751mm; y1=28.590248mm; x2=50.2mm; y2=28.1mm; thickness=0.075mm; clearance=50.0mil;
+        ha:flags {
+         clearline=1
+        }
+       }
+       ha:line.62 {
+        x1=50.2mm; y1=28.1mm; x2=49.7mm; y2=27.571512mm; thickness=0.075mm; clearance=50.0mil;
+        ha:flags {
+         clearline=1
+        }
+       }
+       ha:line.65 {
+        x1=52.85217mm; y1=32.247829mm; x2=60.0mm; y2=18.0mm; thickness=0.075mm; clearance=50.0mil;
+        ha:flags {
+         clearline=1
+        }
+       }
+       ha:line.71 {
+        x1=51.5mm; y1=20.3mm; x2=51.0mm; y2=29.3mm; thickness=0.075mm; clearance=50.0mil;
+        ha:flags {
+         clearline=1
+        }
+       }
+       ha:line.74 {
+        x1=51.0mm; y1=29.3mm; x2=2.0in; y2=28.8mm; thickness=0.075mm; clearance=50.0mil;
+        ha:flags {
+         clearline=1
+        }
+       }
+       ha:line.77 {
+        x1=51.0mm; y1=29.3mm; x2=51.2mm; y2=28.8mm; thickness=0.075mm; clearance=50.0mil;
+        ha:flags {
+         clearline=1
+        }
+       }
+       ha:line.83 {
+        x1=55.75mm; y1=16.75mm; x2=58.0mm; y2=20.75mm; thickness=0.075mm; clearance=50.0mil;
+        ha:flags {
+         clearline=1
+        }
+       }
+       ha:line.90 {
+        x1=42.0mm; y1=66.0mm; x2=118.0mm; y2=66.0mm; thickness=0.2mm; clearance=40.0mil;
+        ha:flags {
+         clearline=1
+        }
+       }
+       ha:arc.6 {
+        x=60.0mm; y=18.0mm; width=16.0mm; height=16.0mm; astart=0.000000; adelta=360.000000; thickness=0.075mm; clearance=50.0mil;
+        ha:flags {
+         clearline=1
+         lock=1
+        }
+       }
+       ha:arc.16 {
+        x=60.0mm; y=18.0mm; width=16.0mm; height=16.0mm; astart=180.000000; adelta=-116.565051; thickness=0.5mm; clearance=40.0mil;
+        ha:flags {
+         clearline=1
+        }
+       }
+       ha:arc.47 {
+        x=9.1mm; y=65.3mm; width=16.0mm; height=16.0mm; astart=201.139825; adelta=-137.704876; thickness=0.5mm; clearance=40.0mil;
+        ha:flags {
+         clearline=1
+        }
+       }
+       ha:arc.81 {
+        x=60.0mm; y=18.0mm; width=4.0mm; height=4.0mm; astart=41.987212; adelta=21.321256; thickness=0.075mm; clearance=50.0mil;
+        ha:flags {
+         clearline=1
+        }
+       }
+       ha:text.54 {
+        string=inc-inc line; x=22.75mm; y=36.2mm; scale=200; fid=0;
+        ha:flags {
+         clearline=1
+        }
+        rot = 0.000000
+       }
+       ha:text.55 {
+        string=conc-conc net; x=50.2mm; y=35.3mm; scale=200; fid=0;
+        ha:flags {
+         clearline=1
+        }
+        rot = 0.000000
+       }
+       ha:text.70 {
+        string=we; x=49.7mm; y=17.1mm; scale=200; fid=0;
+        ha:flags {
+         clearline=1
+        }
+        rot = 0.000000
+       }
+       ha:text.80 {
+        string=r; x=56.3mm; y=26.4mm; scale=200; fid=0;
+        ha:flags {
+         clearline=1
+        }
+        rot = 0.000000
+       }
+       ha:text.82 {
+        string=A; x=55.0mm; y=13.75mm; scale=200; fid=0;
+        ha:flags {
+         clearline=1
+        }
+        rot = 0.000000
+       }
+       ha:text.86 {
+        string={we: effective distance (coppers + smaller clearance)}; x=42.25mm; y=51.25mm; scale=200; fid=0;
+        ha:flags {
+         clearline=1
+        }
+        rot = 0.000000
+       }
+       ha:text.87 {
+        string={sin(A)=we/r}; x=42.0mm; y=56.0mm; scale=200; fid=0;
+        ha:flags {
+         clearline=1
+        }
+        rot = 0.000000
+       }
+       ha:text.88 {
+        string={A=asin(we/r)}; x=42.0mm; y=61.0mm; scale=200; fid=0;
+        ha:flags {
+         clearline=1
+        }
+        rot = 0.000000
+       }
+       ha:text.89 {
+        string={A: effective angle the concave arc is tuned with}; x=42.0mm; y=69.0mm; scale=200; fid=0;
+        ha:flags {
+         clearline=1
+        }
+        rot = 0.000000
+       }
+      }
+      color = {#000000}
+    }
+   }
+ }
+
+ ha:layer_stack {
+  li:groups {
+   ha:0 {
+    name = grp_4
+    ha:type { substrate=1; intern=1;    }
+    li:layers {    }
+    ha:attributes {
+     thickness={0.7375mm }
+    }
+   }
+   ha:1 {
+    name = grp_6
+    ha:type { substrate=1; intern=1;    }
+    li:layers {    }
+    ha:attributes {
+     thickness={0.125mm }
+    }
+   }
+   ha:2 {
+    name = grp_8
+    ha:type { substrate=1; intern=1;    }
+    li:layers {    }
+    ha:attributes {
+     thickness={0.7375mm }
+    }
+   }
+   ha:3 {
+    name = global-doc
+    ha:type { doc=1;    }
+    li:layers { 0;    }
+    ha:attributes {
+     init-invis=1
+    }
+    purpose = fab
+   }
+  }
+ }
+ li:pcb-rnd-conf-v1 {
+  ha:overwrite {
+   ha:design {
+    line_thickness = 200.00 um
+    via_proto = 1
+    text_font_id = 0
+    text_scale = 100
+    text_thickness = 0
+    clearance = 20.00 mil
+   }
+   ha:editor {
+    buffer_number = 0
+    all_direction_lines = true
+    grid_unit = mm
+    grids_idx = 12
+    grid = 1000.00 um
+   }
+  }
+ }
+ ha:pixmaps {
+ }
+}