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GMImage.SetDensity

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

Component Version macOS Windows Linux Server iOS SDK
GraphicsMagick 2.0 ✅ Yes ✅ Yes ✅ Yes ✅ Yes ✅ Yes
MBS( "GMImage.SetDensity"; ImageRef; geometry )   More

Parameters

Parameter Description Example
ImageRef The image reference number. 1
geometry 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.Release";$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); 
$Error = MBS("GMImage.Release";$Image)
]; 

$Result

)

See also

Release notes

Example Databases

Blog Entries

Created 18th August 2014, last changed 21st December 2018


GMImage.SetDefineValue - GMImage.SetDepth

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