Adobe 65011817 Extended User Guide - Page 68

Last updated 12/8/2009 EXTENDING FIREWORKS 64 The Document object Description Converts the selected item(s) to a new symbol. Example The following command creates a graphic symbol from the selected item and names it "star": fw.getDocumentDOM().convertToSymbol("graphic", "star"); See also dom.convertToAnimSymbol(), dom.convertAnimSymbolToGraphicSymbol() dom.convolveSelection() Availability Fireworks MX 2004. Usage dom.convolveSelection( kernelWidth, kernelHeight, kernelValues, affectsAlpha) Arguments kernelWidth An integer that defines the width of the filter coefficients. kernelHeight An integer that defines the height of the filter coefficients. kernelValues An array of integers that defines the values for specific filter patterns. affectsAlpha A Boolean value: true means the convolution filter affects the transparency of the bitmap; false means that the bitmap transparency isn't affected by the filter. Returns Nothing Description Applies convolution, or irregular, filters to the selected bitmap based on the pattern defined by the argument values. Example The following example applies an edge-detection filter to the bitmap: // width of convolution kernel var w = 3; // height of convolution kernel var h = 3; // Edge detection kernel var k = new Array(0, 1, 0, 1, -4, 1, 0, 1, 0); fw.getDocumentDOM().convolveSelection(w, h, k, false);