Re: [osg-users] How to assign an osg::image to another osg::image

[Koduri Lakshmi]

Hi Sergey,

Thank you very much for the help .

ImageDB[imgIdx]= new osg::Image(*sCapImage, osg::CopyOp::DEEP_COPY_ALL);

This statement worked for me. 
... 

Thank you!

Cheers,
Koduri

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Re: [osg-users] How to assign an osg::image to another osg::image

[Sergey Polischuk]

Hi, Koduri

> ImageDB[imgIdx]=sCapImage;
Seems like you storing pointer to same image in all array elements, you should 
use either
ImageDB[imgIdx]= new osg::Image(sCapImage, osg::CopyOp::DEEP_COPY_ALL);
or
ImageDB[imgIdx]= 
static_cast(sCapImage->clone(osg::CopyOp::DEEP_COPY_ALL));

Cheers,
Sergey.

13.06.2012, 17:49, "Koduri Lakshmi" :
> Hi,
>
> I am doing a program to capture the screen of renderer model. I did it by 
> setting graphic context. Now I am getting image.
>
> Now I am setting all these images to an array and then finally saving to the 
> disk. But I am getting only the last image. Here is the code
>
> Code:
> sCapImage->scaleImage(320,240,1);  //sCapImage is the image contains the 
> screen data and it is declared as osg::ref_ptr sCapImage;
>
> ImageDB[imgIdx] = new osg::Image;
> //ImageDB is declared as osg::ref_ptr ImageDB[100];
>
> ImageDB[imgIdx]->allocateImage(sCapImage->s(), sCapImage->t(), 1, GL_RGB, 
> GL_UNSIGNED_BYTE);
>
> ImageDB[imgIdx]=sCapImage;
> for(int i=1;i<99;i++)
> {
> char tmp[10];
> itoa(i,tmp,10);
> char pngName[30];
> strcpy(pngName,"C:\\Test\\");
> strcat(pngName,tmp);
> strcat(pngName,".png");
> std::cout< osgDB::writeImageFile(*(ImageDB[i]),pngName);
> }
>
> osg::ref_ptr ImageDB[200]; is the ImageDB
> osg::ref_ptr sCapImage; are the declarations.
>
> are the declarations .
>
> Can you please help me where am i doing mistake
>
> ...
>
> Thank you!
>
> Cheers,
> Koduri
>
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> Read this topic online here:
> http://forum.openscenegraph.org/viewtopic.php?p=48277#48277
>
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[osg-users] How to assign an osg::image to another osg::image

[Koduri Lakshmi]

Hi,

I am doing a program to capture the screen of renderer model. I did it by 
setting graphic context. Now I am getting image.

Now I am setting all these images to an array and then finally saving to the 
disk. But I am getting only the last image. Here is the code



Code:
sCapImage->scaleImage(320,240,1);  //sCapImage is the image contains the screen 
data and it is declared as osg::ref_ptr sCapImage;

ImageDB[imgIdx] = new osg::Image;
//ImageDB is declared as osg::ref_ptr ImageDB[100];

ImageDB[imgIdx]->allocateImage(sCapImage->s(), sCapImage->t(), 1, GL_RGB, 
GL_UNSIGNED_BYTE);

ImageDB[imgIdx]=sCapImage;
for(int i=1;i<99;i++)
{
char tmp[10];
itoa(i,tmp,10);
char pngName[30];
strcpy(pngName,"C:\\Test\\");
strcat(pngName,tmp);
strcat(pngName,".png");
std::cout< ImageDB[200]; is the ImageDB
osg::ref_ptr sCapImage; are the declarations.

are the declarations .

Can you please help me where am i doing mistake



... 

Thank you!

Cheers,
Koduri

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Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=48277#48277




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