A scale drawing shows an image either reduced or enlarged.There are two numbers separated by a colon that represent the change between the original and scaled drawing.The factor by which the scaled image is enlarged or reduced is represented by the difference between the ratio numbers.A 1 inch drawing will be 25 cm in real life.
Step 1: Measure the object you are scaling.
Measuring with a ruler or tape measure can be hard for irregularly shaped images.Measure the length of the string to find the perimeter in these cases.If you only measure the width and height of the object, you can get by with rough scaling.If the perimeter is broken up into segments like the top, bottom, and sides, it will be helpful to start drawing the scaled image.You can break up the perimeter into regular shapes, like squares and triangles.The perimeter can be found by adding these segments together.
Step 2: You can choose a ratio for your drawing.
Common ratios are 1:10, 1: 100, 2:1, and 4:1.Scales down when the first number is smaller than the second.scaling up is when the first is larger than the second.The second number in the ratio will be large when scaling down images that are large.A 1:5000 ratio can be used to fit a building-sized object on a single sheet of paper.Increase the first number of your ratio by a small amount.A 2:1 ratio will be double the size of the original, and so on.
Step 3: The ratio can be used to convert the actual measurements.
The second number in your ratio is the original measurement.The first number should be used when scaling up.The ratios may be irregular.This means that for every 5 units of distance in the scaled drawing, you will have 7 units from the original.A length of 10 cm would become 2 inches if the ratio was 1:2.A length of 10 cm would become 20 cm with a 2:1 ratio.
Step 4: When possible, start drawing the perimeter with a straight segment.
It is easier to check against your converted length with a straight segment.This will show you how much the scaled image has changed from the original.A drawing that is mostly straight might work just as well if you don't have a suitable straight segment.Draw the perimeter from the top down or bottom up if your image is irregular.
Step 5: Refer to the drawing frequently.
Adding the sides in the same fashion as the original is how to branch out from your starting segment.Continue adding to the perimeter until the scaled image is drawn.As you go along, check your converted measurements against the drawn lines of your scaled image.As needed, erase and adjust lengths.It is possible to draw a grid over the original drawing and put another grid on the larger piece of paper to match the ratio you chose.It's easy to reference where something is supposed to be.
Step 6: The scaled lengths of irregular images can be checked with a piece of string.
A piece of string should be shorter than the longest segment.Measure the string on the segment to see if it matches up with the scaled length.
Step 7: After finishing the perimeter, add details.
The lines inside the drawing will be scaled.You should be able to draw the scaled inside lines freehand once the perimeter is finished.Make sure that all lines of the drawn image match your scaled measurement when you finish drawing.
Step 8: Scan something.
Before you start scaling, you need your drawing to be digital.If you don't have a scanning machine, a phone picture taken with good lighting should do the trick.
Step 9: The image should be inserted into a program or app.
You can adjust the scale of a picture in many programs.You can copy and paste the image.If you want the highest quality and most accurate scaling, use a design program.
Step 10: You can use the image layout options.
This can be accomplished by right clicking the picture.Select the Lock aspect ratio andRelative to original image size when you click on the size and position option in the drop-down menu.You can use the settings in the "Size" menu to see how changes affect the image.You can find scaling options in the properties of the image or in an image format menu.
Step 11: The height and width should be adjusted under the heading.
Digital image size is represented by many programs.The difference between 100% and 25% is that the digital image is a quarter the size of the original.The image will be enlarged when the percentage exceeds 100%.Graininess can be caused bylarging images, especially with low-resolution images.
Step 12: You can save the scaled image.
Save a copy of the image or replace it with the scaled one after it has been scaled.Print your scaled image and you are good to go.