diff -urN rt_v53/Makefile rt_v54/Makefile
--- rt_v53/Makefile	2018-06-21 22:05:56.000000000 +0900
+++ rt_v54/Makefile	2018-06-23 11:36:50.000000000 +0900
@@ -16,5 +16,5 @@
 	rm -f *.o *~ *.pyc
 	rm -rf __pycache__
 	find . -type d -name 'out*' | xargs rm -rf
-	rm -f blk_balls.yaml blk_bars.yaml dots.yaml
+	rm -f blk_balls.yaml blk_bars.yaml dots.yaml mons.yaml
 # EOF
diff -urN rt_v53/blk.yaml rt_v54/blk.yaml
--- rt_v53/blk.yaml	2018-06-21 22:12:07.000000000 +0900
+++ rt_v54/blk.yaml	2018-06-22 23:27:10.000000000 +0900
@@ -4,7 +4,7 @@
 - kind: ball
   rtd: '*rtd_a'
   m2g:
-  - ax.zoom_all(0.5)
+  - '@ax.zoom_all( blk_r )'
 
 @include blk_balls.yaml
 
@@ -13,7 +13,7 @@
   rtd: '*rtd_a'
   m2g:
   - ax.slide_z(1)
-  - 'ax.zoom([0.5,0.5,0.5])'
+  - '@ax.zoom([ blk_r , blk_r , 0.5 ])'
   - ax.rot_y(90)
 
 blk_v:
@@ -21,7 +21,7 @@
   rtd: '*rtd_a'
   m2g:
   - ax.slide_z(1)
-  - 'ax.zoom([0.5,0.5,0.5])'
+  - '@ax.zoom([ blk_r , blk_r , 0.5 ])'
   - ax.rot_x(-90)
 
 @include blk_bars.yaml
diff -urN rt_v53/defs.yaml rt_v54/defs.yaml
--- rt_v53/defs.yaml	2018-06-21 21:25:38.000000000 +0900
+++ rt_v54/defs.yaml	2018-06-23 01:45:17.000000000 +0900
@@ -9,6 +9,8 @@
   dark: [50,50,50]
   white: [200,200,200]
   red: [50,50,200]
+  cyan: [200,200,50]
+  magenta: [200,50,200]
   yellow: [50,200,200]
   blue: [200,50,50]
 
@@ -17,4 +19,6 @@
 
   sec10: '(lambda v: (v-int(v))*10.0)(sec/10.0)'
 
+  blk_r: 0.2
+
 # EOF
diff -urN rt_v53/dot.yaml rt_v54/dot.yaml
--- rt_v53/dot.yaml	2018-06-21 22:13:44.000000000 +0900
+++ rt_v54/dot.yaml	2018-06-23 01:47:42.000000000 +0900
@@ -12,7 +12,7 @@
   rtd: '*rtd_a'
   def_col: '*[50,int(way.get([(50,1),(200,1)],sec)),200]'
   m2g:
-  - ax.zoom_all(0.5)
+  - ax.zoom_all(0.35)
 
 @include dots.yaml
 
diff -urN rt_v53/mon.yaml rt_v54/mon.yaml
--- rt_v53/mon.yaml	1970-01-01 09:00:00.000000000 +0900
+++ rt_v54/mon.yaml	2018-06-23 01:43:03.000000000 +0900
@@ -0,0 +1,34 @@
+@include defs.yaml
+
+mon1:
+- kind: or
+  args:
+  - kind: ball
+  - kind: pipe
+    m2g:
+    - ax.zoom_z(0.5)
+    - ax.slide_z(-0.5)
+  rtd: '*rtd_a'
+  m2g:
+  - ax.zoom_all(0.5)
+
+@include mons.yaml
+
+mon:
+- kind: export
+  export: mon_R
+  def_col: '*red'
+
+- kind: export
+  export: mon_C
+  def_col: '*cyan'
+
+- kind: export
+  export: mon_M
+  def_col: '*magenta'
+
+- kind: export
+  export: mon_Y
+  def_col: '*yellow'
+
+# EOF
diff -urN rt_v53/pac.sh rt_v54/pac.sh
--- rt_v53/pac.sh	2018-06-21 21:25:38.000000000 +0900
+++ rt_v54/pac.sh	2018-06-22 23:15:48.000000000 +0900
@@ -5,7 +5,7 @@
 cd pac
 
 P=http://kondoh.html.xdomain.jp/pac
-LST="pac.py kon.py pac_data.tgz v2.patch v3.patch v4.patch v5.patch v6.patch"
+LST="pac.py kon.py pac_data.tgz v2.patch v3.patch v4.patch v5.patch v6.patch v7.patch"
 
 for F in $LST; do
   wget $P/$F
diff -urN rt_v53/pac.yaml rt_v54/pac.yaml
--- rt_v53/pac.yaml	2018-06-21 21:25:38.000000000 +0900
+++ rt_v54/pac.yaml	2018-06-23 00:42:21.000000000 +0900
@@ -2,10 +2,11 @@
 @include big_ball.yaml
 @include blk.yaml
 @include dot.yaml
+@include mon.yaml
 
 pac:
 - kind: exports
-  exports: [ blk, dot ]
+  exports: [ blk, dot, mon ]
   m2g:
   - 'ax.slide([-21.0/2,-23.0/2,0])'
   - ax.zoom_y(-1)
diff -urN rt_v53/pac_dat.py rt_v54/pac_dat.py
--- rt_v53/pac_dat.py	2018-06-21 22:04:34.000000000 +0900
+++ rt_v54/pac_dat.py	2018-06-23 01:33:52.000000000 +0900
@@ -113,14 +113,45 @@
 
 	ut.yaml_save( 'dots.yaml', d )
 
+def mon_dat(mon_log):
+	s = ut.file_read_inc(mon_log)
+	lines = s.strip().split('\n')
+	d = {}
+	for k in 'CMYR':
+		lst = ut.filter_lst( lambda s: s.startswith(k), lines )
+		def f(s):
+			(x, y, t) = s.split(' ')[1:]
+			return [ int(x), int(y), float(t) ]
+		lst = ut.map_lst( f, lst )
+		for i in range( len(lst)-1 ):
+			lst[i][2] = lst[i+1][2] - lst[i][2]
+		lst[-1][2] = None
+
+		xs = ut.map_up_lst( lambda x, y, t: (x, t), lst )
+		ys = ut.map_up_lst( lambda x, y, t: (y, t), lst )
+		defs = { 'xs': str(xs), 'ys': str(ys) }
+		m2g = [ '@ax.slide([ way.get( xs , sec ), way.get( ys , sec ), 0 ])' ]
+		mon_d = { 'kind': 'export', 'export': 'mon1', 'defs': defs, 'm2g': m2g }
+		d[ 'mon_' + k ] = [ mon_d ]
+
+	ut.yaml_save( 'mons.yaml', d )
+
 if __name__ == "__main__":
 	pac_txt = 'pac/pac.txt'
 	if not ut.exists(pac_txt):
 		ut.cmd_exec('sh pac.sh')
 
+	cmd = 'cat pac_mon_pos_out.patch | ( cd pac ; patch -p1 -N ; rm -f *.rej )'
+	ut.cmd_exec(cmd)
+
 	lst_xy = ut.txt_to_lst_xy(pac_txt)
 	(w, h) = ut.lst_xy_wh(lst_xy)
 			
 	blk_dat(lst_xy, w, h)
 	dot_dat(lst_xy, w, h)
+
+	mon_log = 'pac/mon_pos.log'
+	if ut.exists(mon_log):
+		mon_dat(mon_log)
+
 # EOF
diff -urN rt_v53/pac_mon_pos_out.patch rt_v54/pac_mon_pos_out.patch
--- rt_v53/pac_mon_pos_out.patch	1970-01-01 09:00:00.000000000 +0900
+++ rt_v54/pac_mon_pos_out.patch	2018-06-23 00:02:00.000000000 +0900
@@ -0,0 +1,21 @@
+--- pac-/pac.py	2018-06-22 23:16:20.000000000 +0900
++++ pac/pac.py	2018-06-22 23:57:37.000000000 +0900
+@@ -3,6 +3,7 @@
+ import sys
+ import os
+ import threading
++import time
+ import kon
+ from kon import dbg, DIRS, U, D, L, R, flush, has, set, get, mk_slst
+ 
+@@ -384,7 +385,10 @@
+ 	(px, py) = arr.pos(c)
+ 	ds = next_ds(px, py, c)
+ 
++	pd = arr.get_dir(c)
+ 	d = sel_mon_way(c, px, py, ds)
++	if d != pd:
++		print( '{} {} {} {}'.format( c, px, py, time.time() ) )
+ 
+ 	(nx, ny) = step_to(px, py, d)
+ 	hz = get_hz(c, nx, ny, d)