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GMImage.SetDensity

Sets the Vertical and horizontal resolution in pixels of the image.

Component Version macOS Windows Server FileMaker Cloud FileMaker iOS SDK
GraphicsMagick 2.0 Yes Yes Yes Yes Yes

MBS( "GMImage.SetDensity"; ImageRef; geomery )

Parameters

Parameter Description Example value
ImageRef The image reference number. 1
geomery The rectangle. Geometry is specified as a width and height "100x200". With an optional offset "100x200+10+20". For percent values, add a percent on the end, for % values add a %: "100x200%!" "100x200"

Result

Returns "OK" on success.

Description

Sets the Vertical and horizontal resolution in pixels of the image.
Please use GMImage.SetResolutionUnits to define units.

Examples

Loads image and writes back with new DPI setting:

Set Variable [$ImageRef; Value:MBS("GMImage.NewFromContainer"; Test::BigImage)]
Set Variable [$Result; Value:MBS("GMImage.SetDensity"; $ImageRef; "300x300")]
Set Variable [$Result; Value:MBS("GMImage.SetQuality"; $ImageRef; 90)]
Set Field [Test::Result; MBS( "GMImage.WriteToJPEGContainer"; $ImageRef )]
Set Variable [$Error; Value:MBS("GMImage.Destroy";$ImageRef)]

Set resolution and remove all metadata with different resolution:

Let ( [ 

$Image = MBS("GMImage.NewFromContainer"; GraphicsMagick::image ); 
$r = MBS("GMImage.SetDensity"; $Image; "72x72") ;
$r = MBS(  "GMImage.Setprofile"; $Image; "EXIF"; "" ) ;
$r = MBS(  "GMImage.Setprofile"; $Image; "IPTC"; "" ) ;
$r = MBS(  "GMImage.Setprofile"; $Image; "XMP"; "" ) ;
$Result = MBS("GMImage.WriteToJPEGContainer"; $Image); 
$Error = MBS("GMImage.Destroy";$Image)
]; 

$Result

)

See also

Example Databases


GMImage.SetDefineValue   -   GMImage.SetDepth

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