THE PLANE-TABLE AND ITS USE IN TOPOGRAPHICAL SURVEYING1869 |
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Página 4
... field at once by the simultaneous measurement and plot- ting of the angles ; and while it is done with as much accuracy as it could be plotted with a protractor , errors of transfer are avoided and much time saved . The plane - table at ...
... field at once by the simultaneous measurement and plot- ting of the angles ; and while it is done with as much accuracy as it could be plotted with a protractor , errors of transfer are avoided and much time saved . The plane - table at ...
Página 14
... field , and the occurrence of almost unceasing atmospheric changes , it can hardly ever be considered for any great length of time as fixed in its relative proportions ; and the difficulty is greatly increased from the want of ...
... field , and the occurrence of almost unceasing atmospheric changes , it can hardly ever be considered for any great length of time as fixed in its relative proportions ; and the difficulty is greatly increased from the want of ...
Página 15
... field sheets . In some cases , such as surveys of cities , wharves , & c . , 000 may be used ; and in certain rare ... FIELD - WORK . - The conical projection is that used in the Coast Survey for field - work . The direction in which the ...
... field sheets . In some cases , such as surveys of cities , wharves , & c . , 000 may be used ; and in certain rare ... FIELD - WORK . - The conical projection is that used in the Coast Survey for field - work . The direction in which the ...
Página 17
... field projections of scale rʊʊʊ the ordinate of the extreme minute only need be used , and the parallel drawn a right line from the point so found to the central meridian . This ordinate ( H ) being set off on each of the parallels ...
... field projections of scale rʊʊʊ the ordinate of the extreme minute only need be used , and the parallel drawn a right line from the point so found to the central meridian . This ordinate ( H ) being set off on each of the parallels ...
Página 18
... advisable to draw squares of 1,000 or any specified number of metres on the sheet , by means of which the projection can ultimately be laid down correctly . FIELD - WORK . - General Remarks . - In 18 THE PLANE - TABLE AND ITS USE IN.
... advisable to draw squares of 1,000 or any specified number of metres on the sheet , by means of which the projection can ultimately be laid down correctly . FIELD - WORK . - General Remarks . - In 18 THE PLANE - TABLE AND ITS USE IN.
Otras ediciones - Ver todas
Plane Table & Its Use in Topographical Surveying U S Coast and Geodetic Survey Sin vista previa disponible - 2018 |
Plane Table & Its Use in Topographical Surveying U S Coast and Geodetic Survey Sin vista previa disponible - 2018 |
Plane Table & Its Use in Topographical Surveying U S Coast and Geodetic Survey Sin vista previa disponible - 2018 |
Términos y frases comunes
25 cents 50 cents accuracy adjustment alidade axis brass BRIDGES centre chain circle clamp Cloth Coast Survey construction contours correct cross-hairs curves declinatoire depression determined diagram direction distance Edition Engineers engravings Feet fiducial edge field forward line forward signal GEOLOGY OF PENNSYLVANIA Graphical Statics ground HAND-BOOK height hills horizontal Hypsometry instrument intersection line of sight lines drawn lithographic plates marked means measured meridian metal method metres middle point minutes of arc Morocco necessary objects observed Paper covers parallel pencils perpendicular placed plane plane-table plotted points point occupied point sought falls PRACTICAL TREATISE Prof projection QUALITATIVE CHEMICAL ANALYSIS resection right angles rule scale sheet shore line side sketching Slide Valve slope station Steam Steel straight edge surveyor taken tangent screw telemeter telescope tion topographer triangle of error triangulation points true point U. S. Navy vertical arc wood-cuts Yale College ZERAH COLburn
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