Servoy 6.0.x Documentation
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Method Summary
JSImage #flip(type)
Flips the image verticaly (type param=0) or horizontaly (type param=1).
String #getContentType()
Gets the contenttype (image/jpeg) of this image.
byte[] #getData()
Gets the bytes of this image, so that they can be saved to disk or stored the database.
Number #getHeight()
Gets the height of this image.
String #getMetaDataDescription()
Gets the description of a metadata property from the image.
Object #getMetaDataObject()
Gets the real object of a metadata property from the image.
String[] #getMetaDataProperties()
Gets the available metadata properties from the image.
Number #getWidth()
Gets the width of this image.
JSImage #resize(width, height)
Resizes the image to the width/height given, keeping aspect ratio.
JSImage #rotate(degrees)
Rotates the image the number of degrees that is given.

Method Details
flip

JSImage flip (type)

Flips the image verticaly (type param=0) or horizontaly (type param=1). A new JSImage is returned.
Parameters
type
Returns
JSImage
Sample
var image = plugins.images.getImage(byteArray_or_file_or_filename);//loads the image
image = image.flip(0);//flip vertically
var bytes = image.getData();//gets the image bytes
plugins.file.writeFile('filename',bytes);//saves the image bytes
getContentType

String getContentType ()

Gets the contenttype (image/jpeg) of this image.
Returns
String
Sample
var image = plugins.images.getImage(byteArray_or_file);
var width = image.getWidth();
var height = image.getHeight();
var contentType = image.getContentType();
getData

byte[] getData ()

Gets the bytes of this image, so that they can be saved to disk or stored the database.
Returns
byte[]
Sample
var image = plugins.images.getImage(byteArray_or_file_or_filename);//loads the image
image = image.resize(200,200);//resizes it to 200,200
var bytes = image.getData();//gets the image bytes
plugins.file.writeFile('filename',bytes);//saves the image bytes
getHeight

Number getHeight ()

Gets the height of this image.
Returns
Number
Sample
var image = plugins.images.getImage(byteArray_or_file);
var width = image.getWidth();
var height = image.getHeight();
var contentType = image.getContentType();
getMetaDataDescription

String getMetaDataDescription ()

Gets the description of a metadata property from the image. Currently only jpg is supported.
Returns
String
Sample
var image = plugins.images.getImage(byteArray_or_file_or_filename);//loads the image
// get the available metadata properties from the image, currently only jpg is supported
var propertiesArray = image.getMetaDataProperties();
for(var i=0;i<propertiesArray.length;i++)
{
	var property = propertiesArray[i]
	application.output("property: " + property);
	application.output("description (string): " + image.getMetaDataDescription(property))
	application.output("real object: " + image.getMetaDataObject(property))
}
// Thumbnail data is stored under property 'Exif - Thumbnail Data', extract that and set it in a dataprovider
thumbnail = image.getMetaDataObject("Exif - Thumbnail Data"); // gets thumbnail data from the image
getMetaDataObject

Object getMetaDataObject ()

Gets the real object of a metadata property from the image. Currently only jpg is supported.
Returns
Object
Sample
var image = plugins.images.getImage(byteArray_or_file_or_filename);//loads the image
// get the available metadata properties from the image, currently only jpg is supported
var propertiesArray = image.getMetaDataProperties();
for(var i=0;i<propertiesArray.length;i++)
{
	var property = propertiesArray[i]
	application.output("property: " + property);
	application.output("description (string): " + image.getMetaDataDescription(property))
	application.output("real object: " + image.getMetaDataObject(property))
}
// Thumbnail data is stored under property 'Exif - Thumbnail Data', extract that and set it in a dataprovider
thumbnail = image.getMetaDataObject("Exif - Thumbnail Data"); // gets thumbnail data from the image
getMetaDataProperties

String[] getMetaDataProperties ()

Gets the available metadata properties from the image. Currently only jpg is supported.
Returns
String[]
Sample
var image = plugins.images.getImage(byteArray_or_file_or_filename);//loads the image
// get the available metadata properties from the image, currently only jpg is supported
var propertiesArray = image.getMetaDataProperties();
for(var i=0;i<propertiesArray.length;i++)
{
	var property = propertiesArray[i]
	application.output("property: " + property);
	application.output("description (string): " + image.getMetaDataDescription(property))
	application.output("real object: " + image.getMetaDataObject(property))
}
// Thumbnail data is stored under property 'Exif - Thumbnail Data', extract that and set it in a dataprovider
thumbnail = image.getMetaDataObject("Exif - Thumbnail Data"); // gets thumbnail data from the image
getWidth

Number getWidth ()

Gets the width of this image.
Returns
Number
Sample
var image = plugins.images.getImage(byteArray_or_file);
var width = image.getWidth();
var height = image.getHeight();
var contentType = image.getContentType();
resize

JSImage resize (width, height)

Resizes the image to the width/height given, keeping aspect ratio. A new JSImage is returned.
Parameters
width
height
Returns
JSImage
Sample
var image = plugins.images.getImage(byteArray_or_file_or_filename);//loads the image
image = image.resize(200,200);//resizes it to 200,200
var bytes = image.getData();//gets the image bytes
plugins.file.writeFile('filename',bytes);//saves the image bytes
rotate

JSImage rotate (degrees)

Rotates the image the number of degrees that is given. A new JSImage is returned.
Parameters
degrees
Returns
JSImage
Sample
var image = plugins.images.getImage(byteArray_or_file_or_filename);//loads the image
image = image.rotate(90);//rotate the image 90 degrees
var bytes = image.getData();//gets the image bytes
plugins.file.writeFile('filename',bytes);//saves the image bytes
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