Photographic Surveying, Including the Elements of Descriptive Geometry And Perspective
Photographic Surveying, Including the Elements of Descriptive Geometry And Perspective
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In our eReader you can find the full English version of the book. Read Photographic Surveying, Including the Elements of Descriptive Geometry And Perspective Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Photographic Surveying, Including the Elements of Descriptive Geometry And Perspective
What reading level is Photographic Surveying, Including the Elements of Descriptive Geometry And Perspective book?
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The ground plan is drawn on cross section paper, having squares of four sizes, distinguished by lines of different intensities. The largest squares are divided into four smaller ones which are also divided into four. The sides of the squares are even divisions of the scale. When the scale is increased two or four times, the reduction is made at sight by transferring the figures from one set of squares to the other. Front lines have been marked on the drawing board at even distances from the foo...t of the station. The cross section paper is pinned to the board with some of its lines upon the front lines of the board and a perpen- dicular to the former on the trace of the principal plane.
The distance from the foot of the station is marked on one of the front lines of the paper forming the sides of the squares : this distance, with the trace of the principal plane permits oi transferring to the general ground plan the portion of it which has been obtained by the perspectograph.
When the seal© is changed, the distance of the front lines should be changed accordingly.
What to read after Photographic Surveying, Including the Elements of Descriptive Geometry And Perspective?
You can find similar books in the "Read Also" column, or choose other free books by Canada Topographical Survey to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The ground plan is drawn on cross section paper, having squares of four sizes, distinguished by lines of different intensities. The largest squares are divided into four smaller ones which are also divided into four. The sides of the squares are even divisions of the scale. When the scale is increased two or four times, the reduction is made at sight by transferring the figures from one set of squares to the other. Front lines have been marked on the drawing board at even distances from the foo...t of the station. The cross section paper is pinned to the board with some of its lines upon the front lines of the board and a perpen- dicular to the former on the trace of the principal plane.
The distance from the foot of the station is marked on one of the front lines of the paper forming the sides of the squares : this distance, with the trace of the principal plane permits oi transferring to the general ground plan the portion of it which has been obtained by the perspectograph.
When the seal© is changed, the distance of the front lines should be changed accordingly.
What to read after Photographic Surveying, Including the Elements of Descriptive Geometry And Perspective?
You can find similar books in the "Read Also" column, or choose other free books by Canada Topographical Survey to read onlineMoreLess
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