In level country, especially if it is covered with forests, it is very expensive to carry on triangulation, and in some cases practically impossible to do so. Under such circumstances the only means of obtaining an adequate control for maps is by means... Report - Seite 321von Maryland Geological Survey - 1898Vollansicht - Über dieses Buch
| Maryland Geological Survey - 1898 - 628 Seiten
...circumstances the only means of obtaining an adequate control for maps is by means of traverse lines. A traverse line consists of a series of direction and distance measurements. Each course, as the direction and the accompanying distance L: 35 53 O6.740 Chusca A: 108 50 14.518... | |
| Maryland Geological Survey - 1898 - 646 Seiten
...circumstances the only means of obtaining an adequate control for maps is by means of traverse lines. A traverse line consists of a series of direction and distance measurements. Each course, as the direction and the accompanying distance L : 35 53 06.746 Cbusca A : « L — 45... | |
| Maryland Geological Survey - 1898 - 630 Seiten
...circumstances the only means of obtaining an adequate control for maps is by means of traverse lines. A traverse line consists of a series of direction and distance measurements. Each course, as the direction and the accompanying distance L : 35 53 il.',.".',-; Chusca л : SL —... | |
| Maryland Geological Survey - 1898 - 628 Seiten
...circumstances the only means of obtaining an adequate control for maps is by means of traverse lines. A traverse line consists of a series of direction and distance measurements. Each course, as the direction and the accompanying distance L: 35 53 06.746 Chusca A: « L — 45 40.818... | |
| Edwin Alvin Root - 1902 - 458 Seiten
...TRAVERSING WITH THE PLANE TABLE. — As previovsly stated, a traverse consists of a series of consecutive direction and distance measurements depending upon...triangulation points in order to check up accumulated errors. The relative extent to which triangulation and traversing can be applied depends principally upon the... | |
| 1907 - 874 Seiten
...Under such circumstances traverse lines afford the only means of obtaining adequate control for maps. A traverse line consists of a series of direction and distance measurements. Each course, as the direction and the accompanying distance are called, depends upon the one immediately... | |
| Henry Gannett - 1906 - 120 Seiten
...necessarily great. TRAVERSE WORK. As stated under the head of traverses for primary control (p. 67), a traverse line consists of a series of direction...check up accumulated errors. If it were practicable or economical to carry on all the work of location by intersection, this would be the most accurate and... | |
| Geological Survey (U.S.) - 1906 - 126 Seiten
...Under such circumstances traverse lines afford the only means of obtaining adequate control for maps. A traverse line consists of a series of direction and distance measurements. Each course, as the direction and the accompanying distance are called, depends upon the one immediately... | |
| Pennsylvania. Topographic and Geological Survey Commission - 1906 - 328 Seiten
...of certain points within the degree of precision demanded by the scale of the map. is by traverse. A traverse line consists of a series of direction and distance measurements. The direction of each course is not determined by the magnetic needle, as in land surveying, but is... | |
| Pennsylvania. Topographic and Geological Survey Commission - 1906 - 328 Seiten
...of certain points within the degree of precision demanded by the scale of the map, is by traverse. A traverse line consists of a series of direction and distance measurements. The direction of each course is not determined by the magnetic needle, as in land surveying, but is... | |
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