# How can I specify millimetric spaces

조회 수: 1 (최근 30일)
Ali Deniz . 2021년 4월 2일
댓글: Image Analyst . 2021년 4월 3일
I have a data list and in the graph I will plot by using this datas, I have to scale axes in millimetric spaces. For example; I have MPa values in y direction and in every 140 MPa there should be 25 mm. Part of the question which includes the scaling order is "Use a scale of 25 mm 140 MPa and 25 mm= 0.05 mm/mm. Redraw the elastic region, using the same stress scale but a strain scale of 25 mm= 0.001 mm/mm." How can I do that? I will be grateful if you could help me.
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darova 2021년 4월 3일
Can't you just divide your data by 25?

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### 채택된 답변

Image Analyst 2021년 4월 3일
If you have an array y where the value is in MPa, and you want it in mm, you need to multiply by the scaling factor
yInMm = yInMPa * 25 / 140;
Now if yInMPa is 140, yInMm will be 25.
I don't know what the meaning of mm/mm is. Please explain.
##### 댓글 수: 2표시 이전 댓글 수: 1숨기기 이전 댓글 수: 1
Image Analyst 2021년 4월 3일
The spacing depends on the figure size on your monitor. If you change it, the graph will be the same but the distance between tick marks will change. I think there is a way to get the screensize, both physically (but I don't know how) and in terms of pixels:
>> get(0, 'screensize')
ans =
1 1 1920 1080
There is also a way to specify the paper printout size if you're printing onto paper but I don't know how to do that since I never do it.

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