An open-source, web-based viewer for zoomable images, implemented in pure JavaScript.
APIs where you can apply arbitrary transformations to images are hard to do right. even if you have all the operations, you still have the question of what order to apply them in. the endgame for this type of thing is to just have a stack of affine matrices, then you can apply any operation in any order. but that ends up being really difficult to use and requires rendering every tile as a textured polygon which is probably really slow on some systems
'This thing' only meaning only 'my' thing, of course :)
I'm going to play around with OpenseadragonImagingHelper. dataToPhysicalX and Y might be what I'm looking for.
Supposedly one can click in the margin to set a breakpoint, and then right-click and choose 'debug'. But here's the thing... for example, you want to debug javascript... you'd have to set the breakpoint in your script, but then do the right-click / 'debug' from the html that calls it.
once you've right clicked the margin to debug once, it should remember the profile
there's a video from a couple of months ago, for the visual https://youtu.be/Qcqnmle6Wu8
looks like i'm going to end up giving jetbrains more money
everything just works and now i can't do without it
...but i can flip it in the drawer so no problem
these two lines of code look wrong to me https://github.com/openseadragon/openseadragon/blob/master/src/tiledimage.js#L1472
my assumption is that this deals with wrapping
but what if x or y is negative?
i want to implement a wrapper around getTileBounds which is aware of flipping and wrapping. this will reduce duplicated code and fix that "optimization disabled" thing. i am not sure whether to make it a member of tiledImage or unbound like getTile. it should probably be used instead of the tileSource one just about everywhere. it will behave identically if flip/wrap are off.
@ali1234 I believe the unbound functions (throughout OpenSeadragon) were an earlier developer's attempt to make things private, but I'm in favor of moving away from that. Private functions should be prefixed with an underscore, and not documented (or documented as private), but they should still be attached to the object so they can be debugged and potentially overridden by folks who are willing to take the responsibility.
@ali1234 Your app is phenomenal! That's a really great use of OpenSeadragon, and a cool way to understand circuit boards! Mind if I share it?
and no, not my work, but the artist is a friend
@spy0505 I'm not sure I understand, but it sounds like you want to be able to change the main image without changing the navigator image? That's not really a supported feature, but there is some discussion on ways to do it here: openseadragon/openseadragon#1598 and here: openseadragon/openseadragon#1588
I'm using this code to register the callback:
this.imagingHelper_ref = viewer_ref.activateImagingHelper({onImageViewChanged: onImageViewChanged});
Did you encounter such a behavior?
Hi,
I'm using openseadragon for creating a browser based whole slide image viewer.
Recently, I noticed that, after changing "minPixelRatio" to 0.4 ( from 0.5), my viewer is requesting 40X resolution tiles at 9X viewer resolution.
I tried searching for definition or formula for "minPixelRatio", but couldn't find one.
Can someone point me in correct direction?
I'm using openseadragon for creating a browser based whole slide image viewer.
Recently, I noticed that, after changing "minPixelRatio" to 0.4 ( from 0.5), my viewer is requesting 40X resolution tiles at 9X viewer resolution.
I tried searching for definition or formula for "minPixelRatio", but couldn't find one.
Can someone point me in correct direction?