Strange drawing on iOS map when working with MKPolyline - mapkit

In our app we are connecting GPS coordinates from the position of a user. When we are connecting the lines, it sometimes appears that there is a strange drawing happening. I mean the blurry red color thing on the right of the picture below. Did anyone experience this problem before? Might that be an iOS bug? By the way: It disappears when I reload the map. Management is asking me to fix it but I guess I have no influence here. Any thoughts?

Related

Unexpected behavior after zooming into a 3D object with OrbitControls + Three.js

So, I have this code. It's a small 3D scene with a ground, a red box, a custom loaded building and a rotating "sun". I'm delegating camera navigation to OrbitControls script, as it fits the most the way I want the camera to behave, however, there is a little weird problem: after I zoom in into a 3D object within this scene, rotate a little, then zoom out to "leave" the object, the zoom out process takes a billion scrolls. It's a weird behavior and I'm sorry if I'm not clear enough; once I'm in I have to scroll like forever, and every frame it seems to move "out of" the object very slowly, like the camera state is somehow screwed up.
I'm sorry if this very question has been already asked, I looked for this issue and tried stuff from other topics that seemed the same, but it didn't work.
#Edit
Wow, something even weirder. I tested zooming in this example, indefinitely, then the zoom in started to grow VERY slowly (just like in my code). Am I misunderstanding something? It looks as if the amount of zoom-in's somehow blocked rendering or something.
WestLangley tip actually solved my problem. Setting minDistance prevented the camera to zoom in infinitely, despite the actual rendering only showing a small step into the scene.

WinRT Surface DirectX Black Screen

I'm having a strange and irritating problem on WinRT Surface tablet when using DirectX (hosted in BackgroundSwapChainPanel). Basically once in a while (like once a day, or few times a week / while testing for few hours every day), half of my 3D scene goes black, like on the picture below (cut vertically or sometimes horizontally):
http://www.zurawcli.vot.pl/dxProblem.JPG
While this happens, the DirectX is still rensponsive and i have full control of the app.
I don't think posting code makes any sense ( i'm simply using standard SwapChain and resizing viewport and back texture whenever screen size changes - actually getting screen size from Core Window). This only happens once in a while : ( when i try to explicitly force this - like by splitting screen between two / switching between apps / and so on, I CANNOT repeat this error - viewport always resizes correctly. Then sometimes just using the app, this will happen.
Did anybody had any experience similliar to this ? Any ideas what is causing this ?
Thanks in advance,
cheers

Cocos2d - 4inch screen displace the game

i developed a game for the iphone4. Now i got problems with the iphone5 and the 4inch screen. My game is on the left side of the 4inch screen and i have a big black border on the right side. But the buttons from the game are in the middle of screen, they have same position like on the iphone4. I checked everythin but i dont know why the background-images and the sprites are on the left side and the buttons are in the middle. I want that everything is in the middle or on the left side. It would be great if anybody could help me!! Thanks!!
COCOS2d-iPhone:
If you're using the latest beta, the only change you should need to
make is export all your images at twice the size and use the "-hd"
suffix, similar to Apple's "#2x". The documentation also says you need
to set the content scale factor of the director.
You can find the documentation here.
and more detail here.
COCS2d-X:
Cocos2D-x has a very easy solution for multi-resolution problem.
In fact you just need to set your DesignResolution and then just imagine your target device will has this resolution.
If target device really has this resolution ( or some other but with same ratio) cocos2d will handle to fix screen and your game looks same in all devices.
And when ratio of target device is different, you have many option ( as cocos2d language, policy) to manage that.
For example if you use Exact fit policy, cocos2d will force your game ( and design) to fit target device screen (without that black boarder).
Exact fit
The entire application is visible in the specified area without trying
to preserve the original aspect ratio. Distortion can occur, and the
application may appear stretched or compressed.
For more detail just take a look at this link : http://www.cocos2d-x.org/projects/cocos2d-x/wiki/Multi_resolution_support

Autosizing while rotating device (iOS)

I'm currently fighting with the following problem. Maybe someone of you knows an answer. I think it's not difficult, but i have no clue why it is like it is.
Here's the problem:
First everything looks as it should, but after rotating the device...
.. the textfield disapears under the navigation-bar... Any ideas? :)

iPad not all screen recognising touches

So my current app project is a camera based app and all is going well so far but I have run in to a weird little issue and don't know if there's something basic i'm missing or if it's something more complex.
When I run my app on the iPad in landscape mode (right hand home button), the right end of the screen doesn't recognise touch down events, though if an item is spread across the border (half recognising touches, half not) and you press on the good half and drag, it still recognises the touch and also recognises the touch up event when you let go. Through testing, I worked out that it works fine up to pixel 768 so this makes me think that one of the views thinks that the application is still running in portrait. But then when I run it in portrait, the bottom section (same portion) doesn't work either.
I have looked at another couple of posts on SO:
Article 1
Article 2
I have tried the fixes they say, but have had no luck as of yet. It may be something to do with the fact I have various different views created both programatically and in the interface builder and somewhere along the way, something isn't being initialised correctly but I have tried changing them all, I may have missed some though.
If anybody can shed any light on my situation, that would be greatly appreciated.
Thanks,
Matt
I think the problem has something to do with autoresizing mask. Have you set this? Try to set the background color of all views to see where they are.