MACROMEDIA FLASH 8-ACTIONSCRIPT 2.0 LANGUAGE - Page 463

ConvolutionFilter (flash.filters.ConvolutionFilter) 463
var filter_1:ConvolutionFilter = new ConvolutionFilter(3, 3, [1, 1, 1, 1, 1,
1, 1, 1, 1], 9);
var filter_2:ConvolutionFilter = filter_1;
var clonedFilter:ConvolutionFilter = filter_1.clone();
trace(filter_1 == filter_2); // true
trace(filter_1 == clonedFilter); // false
for(var i in filter_1) {
trace(">> " + i + ": " + filter_1[i]);
// >> clone: [type Function]
// >> alpha: 0
// >> color: 0
// >> clamp: true
// >> preserveAlpha: true
// >> bias: 0
// >> divisor: 9
// >> matrix: 1,1,1,1,1,1,1,1,1
// >> matrixY: 3
// >> matrixX: 3
}
for(var i in clonedFilter) {
trace(">> " + i + ": " + clonedFilter[i]);
// >> clone: [type Function]
// >> alpha: 0
// >> color: 0
// >> clamp: true
// >> preserveAlpha: true
// >> bias: 0
// >> divisor: 9
// >> matrix: 1,1,1,1,1,1,1,1,1
// >> matrixY: 3
// >> matrixX: 3
}
To further demonstrate the relationships between filter_1, filter_2, and clonedFilter
the following example modifies the
bias property of filter_1. Modifying bias
demonstrates that the
clone() method creates a new instance based on values of filter_1
instead of pointing to them in reference.
import flash.filters.ConvolutionFilter;
var filter_1:ConvolutionFilter = new ConvolutionFilter(3, 3, [1, 1, 1, 1, 1,
1, 1, 1, 1], 9);
var filter_2:ConvolutionFilter = filter_1;
var clonedFilter:ConvolutionFilter = filter_1.clone();
trace(filter_1.bias); // 0
trace(filter_2.bias); // 0
trace(clonedFilter.bias); // 0