Container pixels values need to be double actual screen values to function

Audio and Graphics
#1

I’m working with a 720x1280 screen in portrait. Positioning a single image/imageRect or sprite.  The pixel values for the images are all as expected, but for the container to function, I need to double all the pixel values.  This works the same on simulator, android and windows build.  I’ve googled, checked forums, corona guide on containers, and api, cannot find any reason.  Can anyone explain why this is happening? Is it a known issue?

In the code below, I display a sprite near middle of screen, to demonstrate the container partially clipping the sprite. If I set the container dimensions correctly at 710,640, then the sprite incorrectly falls outside of the container.

[lua]-- portrait screen 720x 1280y
container = display.newContainer( 1420, 1280) – container dimensions have to be DOUBLE of screen dimensions
sweet = display.newImageRect( “gfx/1.png”, 80, 80)
sweet.x, sweet.y = 720, display.contentCenterY --displays half way down screen, half showing clipped by screen border
dispGroup = display.newGroup()
dispGroup:insert(sweet)
container:insert( dispGroup, true ) --extra part of sweet hidden by container at x=1420, y=1280, dimensions doubled?
–container.anchorX = .5
–container.anchorY = .5
–container.x = -50
–container.y = -50
–container:translate( 0, display.contentHeight*0.1 )[/lua]

#2

I’m just using a container for the first time and experience exact the same thing.

Container dimensions has to be doubled to fit.

#3

Can you put together a small demo project, with main.lua, config.lua, build.settings and any assets needed to run the app and put it in a .zip file and share a link to it here?  You can use DropBox or Google Drive or similar.

Thanks

Rob

#4

Sorry - in my case it was my fault. The container was placed in the upper left corner, having the anchor point centered - so there was only 1/4 of the container visible. Seems to work fine for me.  

#5

I’m just using a container for the first time and experience exact the same thing.

Container dimensions has to be doubled to fit.

#6

Can you put together a small demo project, with main.lua, config.lua, build.settings and any assets needed to run the app and put it in a .zip file and share a link to it here?  You can use DropBox or Google Drive or similar.

Thanks

Rob

#7

Sorry - in my case it was my fault. The container was placed in the upper left corner, having the anchor point centered - so there was only 1/4 of the container visible. Seems to work fine for me.