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Bowditch defined only "bar scale" in its 1962 Glossary, [4] but added a reference to "graphic scale" by its 2002 edition. [5] Dutton used both terms in 1978. [ 2 ] The International Hydrographic Organization 's Chart No. 1 uses only "linear scale". [ 6 ]
[1] SIA 2014 (1996), Swiss standard for engineers and architects, based on ISO 13567. ÖNORM A 6240-4 (2012), Austrian standard for digital documentation in technical drawings, based on ISO 13567. Samples of standardized layers: A-B374--E- (ISO13567: agent Architect, element Roof window in SfB, presentation graphic element);
Various scales may be used for different drawings in a set. For example, a floor plan may be drawn at 1:50 (1:48 or 1 ⁄ 4 ″ = 1′ 0″) whereas a detailed view may be drawn at 1:25 (1:24 or 1 ⁄ 2 ″ = 1′ 0″). Site plans are often drawn at 1:200 or 1:100. Scale is a nuanced subject in the use of engineering drawings.
The basic design of how graphics are represented in PDF is very similar to that of PostScript, except for the use of transparency, which was added in PDF 1.4. PDF graphics use a device-independent Cartesian coordinate system to describe the surface of a page.
ASME Y14.1 and ASME Y14.1M have now been revised and consolidated into one document, ASME Y14.1-2020, Drawing Sheet Size and Format, published on 18 December 2020. [3] With care, documents can be prepared so that the text and images fit on either ANSI or their equivalent ISO sheets at 1:1 reproduction scale.
The scale can be expressed in four ways: in words (a lexical scale), as a ratio, as a fraction and as a graphical (bar) scale. Thus on an architect's drawing one might read 'one centimeter to one meter', 1:100, 1/100, or 1 / 100 . A bar scale would also normally appear on the drawing.
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A graphical or bar scale. A map would also usually give its scale numerically ("1:50,000", for instance, means that one cm on the map represents 50,000cm of real space, which is 500 meters) A bar scale with the nominal scale expressed as "1:600 000", meaning 1 cm on the map corresponds to 600,000 cm=6 km on the ground.