How to read the scale Pictures

Hello friend this time we will explain on how to calculate the scale when drawing technique whether it's building houses, buildings, roads, bridges and other constructions. Keep in mind that it is necessary to draw technique right size so that what is depicted can represent real objects, this condition is far different from the art of drawing with that size can only estimate the system, or even modified in such a way that looks beautiful but is no longer proportional to the object size, in fact, ok this is an example perhitunganya


How to read the scale Pictures
Scale downsizing

    Example 1: 20
    1 = distance object in the picture = Sd
    20 = Distance actual objects. = Sb
Scale enlargement

    Examples scale of 5: 1
    5 = Distance actual objects. = Sd
    1 = distance of objects in the picture = Sb


The formula to calculate the current scale drawing home

    Objects in the picture distance = (actual object distance x scale Home) / Scale back
    JBG = (Jbsx Sd) / Sb


Example 1. Drawing a road width of 1m to scale 1:20
1:20 scale mean every single centimeter in size 20cm image will represent real objects, so the road width of 1m = 100cm if we image with the 1:20 scale picture distance is (100 × 1) / 20 = 5cm, meaning we draw wide road with a distance of 5cm.
Example 2. Draw bolt nut width of 5mm with a scale of 5: 1
It is kebalikanya of first instance, here the real thing smaller than the picture grew so visible detail, this condition occurs when creating an image much detail, in this example a scale of 5: 1 means that each 5cm in the image represent actual objects 1cm, means bolts 5mm width = 0.5m if drawn to scale 5: 1 then the distance in the picture are (0,5cmx5) / 1 = 2.5 cm.


To calculate the image with other scale is equal to the examples above calculation, the difference is the actual object size and magnitude scale used, the calculation of this scale is indispensable when drawing technique manually while the depiction by computer software is not required, for example on software autocad we can draw the size of the real thing, the problem would be made later on how to stay set the current scale of the print out alone, so this simple tutorial may be useful.