Each record of the file contains the informa- 
map, which consists of the 
of that 
nary files. 
ti on of a point on the digital 
X, Y, 2 coordinates, and the " pen code" /” feature” t 
point. The signification of the pen code is all-inclusive, 
e.g. the point-type, pen-up/pen-doun, shading, annotation, 
etc. 
Fig.1 shows the file structure of a digital map created by 
Wild Aviolyt BC2 (MP-file), and Fig.2 shows the file struc- 
ture of a digital map created by Zeiss Plani comp C100 (Ge- 
neral-file). 
Aviolyt BC2 
-.127 - 
4/14/86 8:19 MPZOCO 
F.C X Y 2 ICD 
CONTOUR 669023,.873 ,0740304.193 673.995 38 
CONTOUR 669004. 964 . 2740352.839 673.998. 35 
CONTOUR 660997.281. 2740335.124 579.998 37 
CONTOUR 668985,141.. 2740322. 151 679.998 37 
CONTOUR 668967.06890. 2740314.24? 679..998.. 37 
CONTOUR 668956.223. .2740303..47?73 679,998. 37 
CONTOUR 668968.407. 2740292. 42 679.998 37 
CONTOUR 668989,514 2740291.634 679,998 37 
CONTOUR 669002.159 . 2740304.136 679.998 37 
CONTOUR 669010.884 2740320.467 879.998 . 37 
CONTOUR 669012.850 27403383. 5238 679.996 37 
CONTOUR 663017.187 2740356. 963 679.998 39 
CROSS 668996,.222.. 2740315. 437 684.122 i44 
668995.485 .2740314. 423 684.122 . 81 
CONTOUR 668943.477 | 2740274..623 670.000. .36 
CONTOUR 666956.381.. 2740270. 080 670.000 37 
CONTOUR 668977.049 2740274. 534 670.000 37. 
CONTOUR 566992.072 .2740284.814 670.000 37 
CONTOUR 66£3007.679 — 2740294. 305 670,000 37 
CONTOUR 669016.226 | 2740310. 831 670.000 37 
CONTOUR 669022.598 2740329. 457 670.000 37 
CONTOUR 669028.018.. 2740346, 096 670.000. 37 
CONTOUR 669038.262  2740360.820 570.000 37 
CONTOUR £59048.509.  2740375.294 670.000: -37 
CONTOUR 669034.943 2740386. 951 070.000 37 
CONTOUR 569018. 906. 2740377. 907 670.000 .37 
CONTOUR 669004,130. 2740369.976 670.000 237 
CONTOUR 668985.262.,2740367. 547 620.0040. 37 
Fig.1 File structure of a digital map created by Wild