Faced such a problem - I need to specify the size of the canvas element 93mm x 53mm, but I can only set the size in pixels. It turns out this problem has no solution or how? Just 1mm can be a different number of pixels, depending on the resolution of the monitor. Tell me, please, what should I do in this situation?
2 answers
style="width:93mm; height:53mm" 
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Chad Chad
8,652 1 golden mark 13 silver marks 37 bronze marks
- one^ ___ ^ like that. - knes
- Now I’ll try, but I haven’t found such units ... htmlbook.ru/content/edinitsy-izmereniya - spoilt
- oneFound, these are absolute values, thank you so much! - spoilt
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// The solution is quite working on most systems.
<body> <div id="ppitest" style="width:1in;visible:hidden;padding:0px"></div> </body> Js:
<script>screenPPI = document.getElementById('ppitest').offsetWidth; scrinPPMM = screenPPI/25.4;//Стока пикселей в одном миллиметре на данном экране. Дальше справитесь? </script> 
knes knes
24.8k 31 silver badge 65 bronze marks
- Yes, thank you so much, I can handle it! - spoilt
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