topic Screen DPI - I simply don't understand in ArcGIS JavaScript Maps SDK Questions

Screen DPI - I simply don't understand

AdrianMarsden — Wed, 15 May 2013 14:16:15 GMT

I don't understand, the smaller the DPI I request, the better the image.

96 DPI
150 DPI
300 DPI

Have I missed something fundamental about DPI here?

Cheers

ACM

PS I tweaked the anti-alias setting and things look better, so those links may not show what I meant anymore.

Re: Screen DPI - I simply don't understand

derekswingley1 — Wed, 15 May 2013 17:51:55 GMT

PS I tweaked the anti-alias setting and things look better, so those links may not show what I meant anymore.

Please clarify whether or not you still have a question.

Re: Screen DPI - I simply don't understand

AdrianMarsden — Thu, 16 May 2013 07:24:25 GMT

I think I really am asking, is what exactly does the DPI setting do? IF I have a map with a defined envelope (X1,Y1,X2,Y2) being shown in a DIV of W width and H height, then the image returned is always the same size in pixels and the same spatial coverage.

Changing the DPI setting makes lines appear thicker (at higher DPIs) but that is about all the difference I can see.

Cheers

ACM