Western sundial at the court of the Kapucin monastery in Brno

Planar sundial for these parameters:
The line perpendicular to its plane points at:
   azimuth  251.4 degrees,
   angular height   0.7 degrees,
The latitude of the place is 49.2 degrees
The local time is  6.5 min ahead of the shown time
The shadow-casting point is at distance R= 400.00 from the plane

The coordinates origin at the sub-gnomon point,
 X goes horizontally to the right, Y upwards.

Pole X=-1240 Y= 1521

Length of the full shaft projection is 1963
Length of the full shaft is 2003

Shaft segment left end X=-370  Y=370*1521/1240=454

Length of the shaft segment projection is 1963*370/1240= 586
Length of the shaft segment is 2003*370/1240= 598

Shaft diameter is 25 mm, supports are to be centered
 at least 12.5 mm from its ends.

Long  support is ((2003-12.5)*400/2003) + 12.5 =410
 (building wall to shaft distant wall)
Short support is ((2003-598+12.5)*400/2003) + 12.5 = 295.5

The supports have to slope downward from the wall some tenths of degree,
 i.e., to be some 2 to 4 mm lower at the shaft end.
 It means that to the wall,
 the angle will be some 0.7 + 0.3 = 1 degree down from 90 degrees.

The h=0 line has Y=    5


Decl.  -23.4     -20.2     -11.5      0         11.5      20.2      23.4
hh:mm  X    Y    X    Y    X    Y    X    Y    X    Y    X    Y    X    Y

12: 0-1075 -354-1068 -423-1051 -624-1023 -939 -986-1362 -944-1828 -924-2056
12:30 -765 -258 -752 -307 -716 -444 -662 -645 -596 -892 -531-1137 -501-1247

13: 0 -579 -195 -564 -233 -524 -338 -467 -486 -400 -659 -337 -823 -309 -894
13:30 -451 -148 -436 -180 -396 -265 -340 -383 -277 -517 -219 -641 -194 -694

14: 0 -357 -110 -343 -137 -303 -210 -250 -309 -190 -420 -135 -520 -112 -562
14:30 -284  -77 -269 -101 -231 -165 -179 -251 -122 -347  -71 -433  -49 -468

15: 0 -223  -46 -209  -68 -171 -126 -121 -204  -65 -289  -16 -365    4 -396
15:30 -172  -17 -158  -37 -120  -91  -71 -163  -16 -241   32 -310   52 -338

16: 0           -112   -8  -75  -58  -25 -126   29 -199   77 -263   96 -290
16:30                      -33  -26   18  -91   72 -161  120 -222  140 -248

17: 0                                 59  -57  116 -125  165 -185  185 -210
17:30                                101  -23  160  -90  211 -150  233 -174

18: 0                                          207  -55  262 -115  285 -140
18:30                                          260  -19  320  -80  345 -106

19: 0                                                    388  -43  416  -70
19:30                                                    472   -2  505  -31
19:40                                                              540  -17
19:50                                                              579   -1