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Suppose I want to make a rectangle that is 50mm x 70mm and I want to inscribe a ellipse with x radius 10mm and y radius 15.5mm centered at 20mm from top and in the middle across.

I can get the dimensionless picture that is proportionally correct as follows:

Graphics[{
    {Black,Rectangle[{0,0},{50,70}]},
    {Gray,Disk[{25,70-20},{20/2,31/2}]}
}]

Is there a way to get the exact dimensions printed on the screen? So if I place an actually object of such dimensions on the screen it overlap completely?

Wolfram language does have a notion of measures of length like millimeter Quantity["Millimeters"] but can it print it exactly on the screen so I can make comparisons?

J. M.'s missing motivation
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user13892
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  • Lots of good info on the topic here (and elsewhere): https://mathematica.stackexchange.com/questions/109813/what-is-a-printers-point – ktm Nov 18 '19 at 14:32
  • @user6014 I can't get it to work, if you can just show for this simple example that would be helpful. – user13892 Nov 18 '19 at 20:43

0 Answers0