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MHH-RCUG / scrnaseq_app

UNDER DEVELOPMENT: Shiny app for visualisation of scRNASeq data
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No actual change in resolution for downloaded pdf files #43

Closed Oliver-D-B closed 3 years ago

Oliver-D-B commented 4 years ago

At present, any change in resolution settings (deviation from default) applies only to the png outputs not to the pdfs

Oliver-D-B commented 4 years ago

The problem here is that the relative size proportion of pure image elements versus axis text labels can't be directly adressed/changed in the app (with regard to the pdf outcome). The current functionality doesn't allow for an optimized visual display/adjustment of the entire panel (graphics and text) as pdf. In other words, presently, the pdf always just represents the 1280x720 resolution, which doesn't always provide a good relation of graphics elements versus axis text labels (documented in the following example with obviously too small axis text labels).

violin raw FTH1 different resolution examples.pptx

We need to discuss possibilities of respective adjustment options for the user (image elements versus axis texts).

mariusrueve commented 3 years ago

Note: use axes with ratio for pdf

mariusrueve commented 3 years ago

Fixed ✔️ 285170c5038b003e8c06a1bef5fa02c125d5503e

I used a ratio of 1 in = 96 pixel.

With very low numbers (pixel) the pdf file seems a bit off compared to the png. But I guess if you want a low resolution a png file should be fine aswell.