downwards the full lines are ignored, as the signs change at the crossing of the dotted lines instead. E.g. H^} H8\ Hwand H16T IV. The cofactors of the directions in a chain of quadrilaterals, ad justed for the angle-conditions. The directions in every quadrilateral are assumed to be observed reciprocally, with equal weights. They are numbered in the usual way (fig. 4). 12 5) 8) 10) 16) I 610 (4-1) M4 (—0 55 (-1) 3 (+1) 2 6lO 144 55 3 3 1220 288 I IO 6 4 1830 432 165 9 5 9815 72° 275 r5 6 1885 - "52 440 24 7 1165 4- 1872 (*+1) 715 (*+1) 39 \x1) 8 720 (x1) 10506 "55 63 9 - 445 1869 1870 102 10 - 275 1155 10505 165 II - 170 (+/*-!1) 7r4 (x—i) 1870 (x1) 267(4-/*-1 12 - 105 441 1T55 432 13 65 273 7r5 - 699 H 40 l68 44° 1131 15 25 I05 275 4- 1830 16 15 63 165 4-10569 r7 10 42 4- 110 1974 18 4- 5 21 55 987 19 5 21 55 987 34 37r5 3T 3024 29 3025 23 4- 2961 3» 610 38 144 38 55 38 3 T/7+1 Fig. 4

Digitale Tijdschriftenarchief Stichting De Hollandse Cirkel en Geo Informatie Nederland

Tijdschrift voor Kadaster en Landmeetkunde (KenL) | 1957 | | pagina 20