InnerWidth returns the interior width of the window in pixels. But this new vertical scrollbar now takes up some horizontal space that is ignored by innerWidth, as the docs state: If you add a below your full-page element, a vertical scrollbar becomes necessary to allow the user to move the viewport down to see it. If you set the lone element in the 's dimensions to innerWidth/ innerHeight and the parent has no padding or margin, then you've used up exactly all of the space on the page and no scrollbars are necessary. This is unrelated to and the behavior is the same with any other block element such as a.
How do we get setColor() to respect Color alpha transparency for each pixel? The transparent area is the Image draw, the opaque area is the setColor part. An additional open question is whether I'm better off first drawing the FINAL intended output to a WritableImage and then just drawing to the Canvas, for performance reasons, but that seems to defeat the point of using a Canvas in the first place.īelow is an example which shows a partially transparent Color being first drawn to an Image and then to the Canvas, and directly to the Canvas with setColor(). I'll be rendering a number of "layers" (similar to how GIMP layers work, with optional transparency per-pixel). I need per-pixel variable transparency, not a single transparency value for the entire draw operation.
Does anyone know why transparency drawing on a Canvas works perfectly fine using drawImage(), but doesn't work at all with a PixelWriter? I initially thought it may have something to do with Blend or some other mode/setting on the canvas/context, but haven't had any luck with that yet.
0 kommentar(er)
