Tango ATK Tutorial

Image attributes
An image attribute is a Tango attribute whose format is Image (2 dimensional array) whatever
the data type of the attribute. In this chapter we will see how to view and / or set a single
image attribute.
One single image attribute
NumberImage attributes
By number image attribute we mean any Tango Attribute whose format is “Image” (2
dimensional array) and whose data type is one of the numerical types. No matter if it’s a
DevLong, DevDouble , or whatever numerical type. All the attributes which are not a video
image such as a 2 dimensional array of numeric data, are considered to be NumberImage
attributes.
The NumberImageViewer is used to display the value of a 2 dimensional array of numeric
data (not a video image). The following code sample illustrates the use of the
NumberImageViewer.
INumberImage ini;
AttributeList attl = new AttributeList();
NumberImageViewer niv = new NumberImageViewer();
Try
{
ini = (INumberImage) attl.add("jlp/test/1/att_image");
niv.setModel(ini);
}
catch (Exception ex)
{
System.out.println("Cannot connect device");
ex.printStackTrace();
}