Sometimes display.save doesn't work.

Audio and Graphics
#1

Hi,

I’m using display.save to “capture” and process 8 images.

As you can see on the attachment some images are bad captured with some white lines… Apparently it is not a cause. The code is the same but sometimes all images are perfect and sometimes 1 or 2 are broken like the attach.

Any suggestion or idea about the solution is welcome! THANKS

#2

Hi @jalemanyf,

I don’t see an attachment, can you please provide it? Also, some code for how you’re doing the capture(s) would help a lot for the community/staff to diagnose.

Thanks,

Brent

#3

Hi Brent,

Thanks for your interest.

I have attached the image another time… 

The complete code is very long but I extract the important part. I need a composed png image that contents an image and a text. All this is inserted on a group called ‘quetionGroup’

On the final part I convert this group to a png image using the display.save… but I have got the problems.

I have 8 questions to convert every time. Normally 2 are bad transformed and the other 6 are perfect. The bad images not are the same every time I tried.

Here is the code:

local function createQuestion(filenameQUE)
------------------------------- Image -------------------------------
local questionGroup = display.newGroup()
local imagenCentral
local expImage = combat.soldiers[u].expImage
local margenImagenTexto = 0.6 – margen que se deja entre las imágenes de preguntas/respuestas y el texto inferior

if(expImage~=nil) then
local imageName = aq.imageFromURL(expImage)
–print (’ ---->>> Ruta de la imágen: ’ … imageName)
if(tools.existeFichero(imageName,system.DocumentsDirectory)==true) then
imagenCentral = display.newImage(imageName,system.DocumentsDirectory)
imagenCentral.x = display.contentCenterX + distancia

local prop = aq.imageProportions(imagenCentral,imagesWidth)
imagenCentral.xScale = prop
imagenCentral.yScale = prop
imagenCentral.y = 350 – 350 Modificado para FLIPP
questionGroup:insert(imagenCentral)
else
print("No se ha hallado el fichero de la imagen de la solapa: " … u)
end
else
print("No se ha hallado la imagen de la solapa: " … u)
end

---------------------- Text --------------------------------------------------

local textoPregunta = combat.soldiers[u].questionDesc
local YtextoPregunta = display.contentHeight*.5

if (imagenCentral~=nil) then
YtextoPregunta = imagenCentral.y + imagenCentral.contentHeight * margenImagenTexto
end

if (textoPregunta~=nil) then
local options =
{
text = textoPregunta,
x = display.contentCenterX + distancia,
y = YtextoPregunta,
width = display.contentWidth*0.75,
font = fontName,
fontSize = fontSize,
align = “center” – Alignment parameter
}
local questionDesc = display.newText(options)
questionDesc:setFillColor( darkBlue[1], darkBlue[2], darkBlue[3], darkBlue[4] )
questionGroup:insert(questionDesc)
end

– ====>>> HERE IS THE PROBLEM: Finally, we save the imageGroup into a png image file

local function saveWithDelay()
display.save (questionGroup,{filename = filenameQUE, baseDir = system.DocumentsDirectory, captureOffscreenArea=true, backgroundColor = {backgroundColor[1],backgroundColor[2],backgroundColor[3]}})
print ('Grabando la imagen de la pregunta: ’ … filenameQUE)
questionGroup:removeSelf()

end
timer.performWithDelay( 100, saveWithDelay )

end

Thanks!

#4

Can you make a working demo that shows the problem including a main.lua, build.settings, config.lua and any assets needed so that we can build it and run it on a device?  Put all of that in a zip file (zip only please, no rar, 7z etc.) and share it with us via DropBox or Google Drive link?

Thanks

Rob

#5

Hi Rob and Brent,

It was a little bit difficult to extract the bug part from the complete project… but I finally got it!

As you tell me, I put the complete demostration project on a zip. Here is the link: https://drive.google.com/open?id=0B73OnhxkOLzjX2VNNWxyWG5IR1k

It happens usually with the first image but works perfect on the next 6…

I’m working on Corona Version 2017.3068 (2017.3.31) (not very old)

Thanks to all

Best Regards,

#6

Are you seeing this issue in the simulator or on device? If so what device?

Are you using a Mac or Windows?

I ran your test project on my Mac with both 3068 and 3114 and the 7 images produced all look like I think they should look. I’ll attach a couple here.

#7

Hello Rob,

Thanks for your interest and time.

I’m using the simulator on a MacBook Pro (13 inches, 2016, two Thunderbolt 3 ports).

The Corona Version is: Version 2017.3068 (2017.3.31)

Probably it works fine on the device… I’m going to make more test using a newest version of Corona and different devices.

Regards

#8

I’ve seen the same issue. Will dig out the link…

#9

If you can Horace… any HELP is welcome! Thanks

#10

Hi @jalemanyf,

I don’t see an attachment, can you please provide it? Also, some code for how you’re doing the capture(s) would help a lot for the community/staff to diagnose.

Thanks,

Brent

#11

Hi Brent,

Thanks for your interest.

I have attached the image another time… 

The complete code is very long but I extract the important part. I need a composed png image that contents an image and a text. All this is inserted on a group called ‘quetionGroup’

On the final part I convert this group to a png image using the display.save… but I have got the problems.

I have 8 questions to convert every time. Normally 2 are bad transformed and the other 6 are perfect. The bad images not are the same every time I tried.

Here is the code:

local function createQuestion(filenameQUE)
------------------------------- Image -------------------------------
local questionGroup = display.newGroup()
local imagenCentral
local expImage = combat.soldiers[u].expImage
local margenImagenTexto = 0.6 – margen que se deja entre las imágenes de preguntas/respuestas y el texto inferior

if(expImage~=nil) then
local imageName = aq.imageFromURL(expImage)
–print (’ ---->>> Ruta de la imágen: ’ … imageName)
if(tools.existeFichero(imageName,system.DocumentsDirectory)==true) then
imagenCentral = display.newImage(imageName,system.DocumentsDirectory)
imagenCentral.x = display.contentCenterX + distancia

local prop = aq.imageProportions(imagenCentral,imagesWidth)
imagenCentral.xScale = prop
imagenCentral.yScale = prop
imagenCentral.y = 350 – 350 Modificado para FLIPP
questionGroup:insert(imagenCentral)
else
print("No se ha hallado el fichero de la imagen de la solapa: " … u)
end
else
print("No se ha hallado la imagen de la solapa: " … u)
end

---------------------- Text --------------------------------------------------

local textoPregunta = combat.soldiers[u].questionDesc
local YtextoPregunta = display.contentHeight*.5

if (imagenCentral~=nil) then
YtextoPregunta = imagenCentral.y + imagenCentral.contentHeight * margenImagenTexto
end

if (textoPregunta~=nil) then
local options =
{
text = textoPregunta,
x = display.contentCenterX + distancia,
y = YtextoPregunta,
width = display.contentWidth*0.75,
font = fontName,
fontSize = fontSize,
align = “center” – Alignment parameter
}
local questionDesc = display.newText(options)
questionDesc:setFillColor( darkBlue[1], darkBlue[2], darkBlue[3], darkBlue[4] )
questionGroup:insert(questionDesc)
end

– ====>>> HERE IS THE PROBLEM: Finally, we save the imageGroup into a png image file

local function saveWithDelay()
display.save (questionGroup,{filename = filenameQUE, baseDir = system.DocumentsDirectory, captureOffscreenArea=true, backgroundColor = {backgroundColor[1],backgroundColor[2],backgroundColor[3]}})
print ('Grabando la imagen de la pregunta: ’ … filenameQUE)
questionGroup:removeSelf()

end
timer.performWithDelay( 100, saveWithDelay )

end

Thanks!

#12

Can you make a working demo that shows the problem including a main.lua, build.settings, config.lua and any assets needed so that we can build it and run it on a device?  Put all of that in a zip file (zip only please, no rar, 7z etc.) and share it with us via DropBox or Google Drive link?

Thanks

Rob

#13

Hi Rob and Brent,

It was a little bit difficult to extract the bug part from the complete project… but I finally got it!

As you tell me, I put the complete demostration project on a zip. Here is the link: https://drive.google.com/open?id=0B73OnhxkOLzjX2VNNWxyWG5IR1k

It happens usually with the first image but works perfect on the next 6…

I’m working on Corona Version 2017.3068 (2017.3.31) (not very old)

Thanks to all

Best Regards,

#14

Are you seeing this issue in the simulator or on device? If so what device?

Are you using a Mac or Windows?

I ran your test project on my Mac with both 3068 and 3114 and the 7 images produced all look like I think they should look. I’ll attach a couple here.

#15

Hello Rob,

Thanks for your interest and time.

I’m using the simulator on a MacBook Pro (13 inches, 2016, two Thunderbolt 3 ports).

The Corona Version is: Version 2017.3068 (2017.3.31)

Probably it works fine on the device… I’m going to make more test using a newest version of Corona and different devices.

Regards

#16

I’ve seen the same issue. Will dig out the link…

#17

If you can Horace… any HELP is welcome! Thanks