AutoCAD 2013 Course

CHAPTER 3: UNITS AND COORDINATES

 

We have already mentioned that with Autocad we can make drawings of very different types, from architectural plans of an entire building, to drawings of pieces of machinery as fine as those of a clock. This imposes the problem of the units of measure that one drawing or the other requires. While a map can have meters, or kilometers, as the case may be, a small piece can be millimeters, even tenths of a millimeter. In turn, we all know that there are different types of units of measurement, such as centimeters and inches. On the other hand, inches can be reflected in decimal format, for example, 3.5 ″ although it can also be seen in fractional format, such as 3 ½ ”. The angles on the other hand, can be reflected as decimal angles (25.5 °), or in degrees minutes and seconds (25 ° 30 ′).

All this forces us to consider some conventions that allow us to work with the units of measurement and the appropriate formats for each drawing. In the next chapter we will see how to choose the formats of the units of measure and their precision. Consider for the moment how the problem of the measures itself in Autocad is raised.

Golgi Alvarez

Writer, researcher, specialist in Land Management Models. He has participated in the conceptualization and implementation of models such as: National Property Administration System SINAP in Honduras, Management Model of Joint Municipalities in Honduras, Integrated Cadastre-Registry Management Model in Nicaragua, Territory Administration System SAT in Colombia . Editor of the Geofumadas knowledge blog since 2007 and creator of the AulaGEO Academy that includes more than 100 courses on GIS - CAD - BIM - Digital Twins topics.

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