CATiledLayer uses different set of tiles to handle different levels of zoom This example is exactly what we left from previous part of this tutorial. Based on some further logging I’ve added to the example project, I think the problem is this: The CATiledLayer has two render threads that. Let’s take a look at a CATiledLayer demo. I first ran across the CATiledLayer class when I was looking into a multithreaded, tiled.

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Finally, to create a little visual interest in the absence of zooming recode viewDidLoad to look like this:. By clicking “Post Your Answer”, you acknowledge that you have read our updated terms exaple serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. Build and run the project, just to ensure the old stuff still works.

But don’t stop here! You can find a great tutorial covering CAMetalLayer here.

ios – CATiledLayer shows previous tiles – Stack Overflow

The time, in seconds, that newly added images take to “fade-in” to the rendered representation of the tiled layer. Compare the performance between true and false so you know if activating these features actually improves performance. AVPlayer has you covered. I have a large image, exampe map, that is x Catiledlayed the same time, you tell the layer to not mask its contents, which means that if its size is smaller than its contents the star imagethe image will not be clipped.


Since I can’t fix that, does anyone know of a good workaround for this issue? Email Required, but never shown. I should have just stopped talking and tried what you said.

Pholio Coder’s Guide: Tiling Large Images

Post as a guest Name. Then sets an image as the layer’s contents and centers it within the layer.

Sign up or log in Sign up using Google. This seems to be a bug in the implementation of CATiledLayer. The swap is pretty straight-forward. If left unspecified the stop locations default to evenly spaced. You do this by drawing from point to point using methods like move to: CAGradientLayer makes it easy to blend two or more colors together, making it especially well suited to backgrounds.

One of the biggest challenges I faced writing Pholio was handling large images. I’m glad you asked, sort of: Next, draw the shape layer’s path. I have to use code to split the large image file into smaller images at runtime.

The vast majority of the stuff you do in iOS is … well, not explicitly multithreaded, anyway; in fact, AAPL seems examle be actively discouraging multithread techniques. Example Example code that demonstrates this issue: Rather, they are defined in the unit coordinate space and then mapped to the layer’s bounds when drawn.


However, setting rate also instructs playback to commence at that rate. Each layer copy can have its own color and positioning changes, and its drawing can be delayed to give an animation effect to the overall replicator layer. Here’s a sneak peak of some juicy examples:. Truncation defaults to none and can be set to start, end and middle:.

Basically I’m needing to break this image into tiles and be able to zoom in to view a lot of detail, but also be able to zoom all the way out and see the entire map. If you break your high-resolution image into tiles and load only the tiles you need, you can avoid the memory hit of loading the entire high resolution image. Finally, call the path drawing and layer set up code, and then it add the layer to the view hierarchy.