A Treatise on the Plane-table and Its Use in Topographical Surveying: From the Coast Survey Report for 1865 [appendix No. 22]U.S. Government Printing Office, 1884 - 38 páginas |
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Página 10
... motion of the cross - hairs will be in a curve , and , upon being made to cover the vertical line when the telescope is horizontal , will deviate from it to the same side both upon 10 THE PLANE - TABLE AND ITS USE IN.
... motion of the cross - hairs will be in a curve , and , upon being made to cover the vertical line when the telescope is horizontal , will deviate from it to the same side both upon 10 THE PLANE - TABLE AND ITS USE IN.
Página 54
... curve upon the map would then become the shore line and the depression D ' would become a pond of water ; and if the ... curves are drawn upon the map with the eye , after having obtained the heights , by means of which their positions ...
... curve upon the map would then become the shore line and the depression D ' would become a pond of water ; and if the ... curves are drawn upon the map with the eye , after having obtained the heights , by means of which their positions ...
Página 56
... curves which can be shown , as in the French survey of Paris , where equidistant horizontal contours are drawn at every two metres of elevation . Contours should be filled in from each station while car- rying on the regular work , when ...
... curves which can be shown , as in the French survey of Paris , where equidistant horizontal contours are drawn at every two metres of elevation . Contours should be filled in from each station while car- rying on the regular work , when ...
Página 57
... true plane is admissible , although it is prefer- able to represent it by the introduction of the auxiliary curves , as shown in the sketch . It is very desirable that all features within the twenty TOPOGRAPHICAL SURVEYING . 57.
... true plane is admissible , although it is prefer- able to represent it by the introduction of the auxiliary curves , as shown in the sketch . It is very desirable that all features within the twenty TOPOGRAPHICAL SURVEYING . 57.
Página 58
... curves , such as breaks in the ground , isolated bould- ers , rocks , etc. , which cannot be legitimately represented by auxiliary curves , should be shown by hachures or con- ventional signs . When the rocks have a distinct stratifica ...
... curves , such as breaks in the ground , isolated bould- ers , rocks , etc. , which cannot be legitimately represented by auxiliary curves , should be shown by hachures or con- ventional signs . When the rocks have a distinct stratifica ...
Otras ediciones - Ver todas
The Plane-table and Its Use in Topographical Surveying Alexander Medina Harrison Vista completa - 1884 |
A Treatise on the Plane-Table and its use in Topographical Surveying: (From ... Vista completa - 1870 |
The Plane-table and Its Use in Topographical Surveying Alexander Medina Harrison Vista completa - 1869 |
Términos y frases comunes
accuracy adjustment alidade Army Artillery axis brass Bridges Capt centre chain circle clamped cloth Coast Survey Construction contours correct cross-hairs curves declinatoire depression determined diagram direction distance draw Engineers engravings feet fiducial edge field Fort Sumter forward line forward signal French ground hachures height hills horizontal Hypsometry Infantry Instructions instrument intersection line of sight lines drawn lithographic Manual marked means measured meridian method metres middle point minutes of arc morocco Navy objects observed operations Ordnance paper parallel pencils perpendicular placed plane table plane-table plotted points point occupied Practical Treatise Prof projection resection revised and enlarged rule scale sheet side sketching slope station Steam straight edge Tactics tangent screw telemeter telescope Text-Book Theory tion topographer Translated triangle of error triangulation points true point U. S. Military Academy U. S. Naval Academy United United States Navy vertical arc VOUSSOIR West Point WILLIAM CAIN wood