Hello Christian,
After your last message saying it still did not have a higher resolution. I
Tried a host of other things and found a alterative way.
I got this to work a different way, using xojo after trying a little bit of
everything. The main objective here was to be able to set the dpi of the
exporting image that was altered using Core Image using mbs complete core image
plugin. The client for the application is a print company that needs images at
certain dpi to work with there printing equipment.
It was hard figuring what I needed to do, because there little info on how to
do set the dpi resolution of a image being altered with ciimage. which lead me
to Apple developer connect for answer because Core Image is a apple thing.
Which does give ideas how to do it from there point of view. However using xojo
offers many other possible routes, which can be confusing at least.
I also figure out how to get the CIImageMBS into a xojo picture witch ended up
being simpler than I figured it was (as I did not see any info in the docs
actually saying do this). What I ended up figuring out to get the ciimage to a
xojo picture object (or what ever its actually called) The info does not really
point this out, that this could be done this way. And maybe is not the correct
way of doing it but it seems to work fine on 2 systems I tested it on.
----------
// apply core image effect
dim rpCIOutImg as CIImageMBS = rpCIEffect.outputImage
//goofy way to do it but works & handles alpha if it present
dim outImage as NSImageMBS = rpCIOutImg.RenderNSImage(false)
dim pic as Picture = outImage.CopyPictureWithMask
// changed this property to a picture object.
pImgWMWorking=pic
————————
Then I used this because to xojo Picture.SaveAsTIFF fails to work in OSX 10.9.2
and I needed to set the output to a size of 298.1dpi for run on press (web
press) output file.
I tested it rounded up at 300 dpi.
——————
dim np as picture = pImgWMWorking
// Hard code for test
np.VerticalResolution=300
np.HorizontalResolution=300
dim data as MemoryBlock = np.GetData( "public.tiff" )
dim stream as BinaryStream = BinaryStream.Create(ffile)
stream.Write( data )
stream.Close()
—————
This worked with png, jpeg , tiff and also psd and pdf (not that I was figuring
on using the last 2) including setting the dpi correctly.
My client needs Tiff format mainly but offered the others because they could
use png and jpeg for position only low res proofing.
I wish all the bitmap image ways to write out a file be it nsimageMBS,
cgimageMBS, graphicMagicMBS or others had a simpler solution for setting the
dpi of the file being written. I not sure all solutions offer this but it would
be nice if there was a cross-platform solution for this somehow. As the above
works for us now, it still only works on Mac OSX.
Thanks for your time.
Regards,
Obleo Beck
On Feb 27, 2014, at 1:42 PM, Christian Schmitz <[email protected]>
wrote:
>
> Am 27.02.2014 um 18:14 schrieb Obleo Beck <[email protected]>:
>
>> I see, ok.
>>
>> Actual using PNG, JPEG and TIFF for NSImage writing.
>> Thanks for the info, I been trying more an more to figure out if it was
>> something I missed in translating objective-c to xojo.
>
> Well, the better code is like this:
>
> dim pImgWMWorking as Picture = LogoMBS(500)
> dim bitmapImageRep as new NSBitmapImageRepMBS(pImgWMWorking)
>
> dim pew as double = bitmapImageRep.width
> dim peh as double = bitmapImageRep.height
>
> // next two lines does same as nssize makeSize
>
> dim nsetW as double = ((72.0 * pew)/300.0)
> dim nsetH as double = ((72.0 * peh)/300.0)
>
> // up to this point all values are the same as returned in objective-c code
>
> bitmapImageRep.setSize(nsetW,nsetH) // this does not seem to work ?
>
>
> dim file as FolderItem = SpecialFolder.Desktop.Child("test.png")
> dim b as BinaryStream = file.CreateBinaryFile("")
> b.Write bitmapImageRep.PNGRepresentation
> b.close
>
> But the problem is that it does not work here. Image does not have higher
> resolution.
>
> (and you need next plugin version for this to test.)
>
> Sincerely
> Christian
>
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>
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>
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