Hinks, Arthur R. (Arthur Robert), 1873-1945 · Cambridge, University press · leaf 174
error; if not, it will be outside. COMPASS AND PLANE TABLE SL<ETCHING 123 Rule 2. The point O will lie always to the right or always tothe left of the three rays, as one looks along them to the pointsfrom which they are drawn. (It will be seen that Rule i isreally included in Rule 2, but it is… … To take an example as in the figure. Let the three rays bedrawn as shown, and let O be outside thetriangle ABC on the ground. By Rule i O on the map is outside thetriangle of error. By Rule 2 it cannot be in either of thesectors marked by shading. By Rule 3, for the proportions of the…
Maps · Surveying
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