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.Place the frame label #Map in the keyframe in which you wantto create the image map.If you don t create a frame label, Flash creates an imagemap using the buttons in the last frame of the movie.You can create an imagemap only if the $IM template variable is present in the template you select.See Creating an image map on page 351.To publish a GIF file with the Flash file:1 Choose File > Publish Settings.328 Chapter 14 2 Select the GIF Image type.Enter a unique name for Filename, or select UseDefault Name to create a file with the Flash file name plus the.gif extension.3 Click the GIF panel to display its settings.4 For Dimensions, enter a Width and Height in pixels for the exported bitmapimage, or select Match Movie to make the GIF the same size as the Flash movieand maintain the aspect ratio of your original image.5 Choose a Playback option to determine whether Flash creates a still (Static)image or an animated GIF (Animation).If you choose Animation, select LoopContinuously or enter the number of repetitions.6 Choose an option to specify a range of appearance settings for theexported GIF:" Optimize Colors removes any unused colors from a GIF file s color table.Thisoption reduces the file size by 1000 to 1500 bytes without affecting imagequality, but slightly increases the memory requirements.This option has noeffect on an adaptive palette.(An adaptive palette analyzes the colors in theimage and creates a unique color table for the selected GIF.)" Interlace makes the exported GIF display in a browser incrementally as itdownloads.An interlaced GIF provides the user with basic graphic contentbefore the file has completely downloaded and may download faster over a slownetwork connection.Do not interlace an animated GIF." Smooth applies anti-aliasing to an exported bitmap to produce a higher-qualitybitmap image and improve text display quality.However, smoothing may causea halo of gray pixels to appear around an anti-aliased image placed on a coloredbackground, and it increases the GIF file size.Export an image withoutsmoothing if a halo appears or if you re placing a GIF transparency on amulticolored background." Dither Solids applies dithering to solid colors as well as gradients.See Ditheroptions in step 8." Remove Gradients, turned off by default, converts all gradients fills in themovie to solid colors using the first color in the gradient.Gradients increase thesize of a GIF and often are of poor quality.If you use this option, choose thefirst color of your gradients carefully to prevent unexpected results.7 Choose a Transparent option to determine the transparency of the movie sbackground and the way alpha settings are converted to GIF:" Opaque to make the background a solid color." Transparent to make the background transparent." Alpha to set partial transparency.Then enter a Threshold value between 0 and255 to make all colors below the value completely transparent (invisible) andcolors above the threshold partially transparent.A value of 128 corresponds to50% alpha (transparent).Publishing and Exporting 329 8 Choose a Dither option to specify how pixels of available colors are combinedto simulate colors not available in the current palette.Dithering can improvecolor quality, but it increases the file size.Choose from the following options:" None turns off dithering and replaces colors not in the basic color table withthe solid color from the table that most closely approximates the specified color.Not dithering can produce smaller files but unsatisfactory colors." Ordered provides good-quality dithering with the smallest increase in file size." Diffusion provides the best-quality dithering but increases file size andprocessing time more than ordered dithering.It also only works with the Web216 color palette selected.9 Choose a Palette Type to define the image s color palette:" Web 216 uses the standard 216-color browser-safe palette to create the GIFimage, for good image quality and the fastest processing on the server." Adaptive analyzes the colors in the image and creates a unique color table forthe selected GIF.This option is best for systems displaying thousands ormillions of colors; it creates the most accurate color for the image but results ina file size larger than a GIF created with the Web 216 palette.To reduce the sizeof a GIF with an adaptive palette, use the Max Colors option in step 10 todecrease the number of colors in the palette." Web Snap Adaptive is the same as the Adaptive palette option except that itconverts very similar colors to the Web 216 color palette.The resulting colorpalette is optimized for the image, but when possible, Flash uses colors fromWeb 216.This produces better colors for the image when the Web 216 paletteis active on a 256-color system." Custom to specify a palette that you have optimized for the selected image.This option has the same processing speed as the Web 216 palette.To use thisoption, you should know how to create and use custom palettes.To choose acustom palette, click the Ellipsis (.) button to the right of the Palette box atthe bottom of the dialog box and select a palette file.Flash supports palettessaved in the ACT format, exported by Macromedia Fireworks and otherleading graphics applications; for more information, see Importing andexporting color palettes on page 150
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