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Administration Console | PopChart Server Reference 4.0.5 |
This screen controls settings for image generation.
The default image format for all images that PopChart Server generates. PopChart Server will return images in this format unless the request specifies otherwise. You can set the default format to GIF, Macromedia® Flash, and SVG. The latter two options will be available only in PopChart Server Pro and PopChart Server Enterprise.
For information about the different image formats, refer to Chapter 14, "Image Formats." For more information on requesting image images in formats other than the default format, refer to "Changing the Image Format" in Chapter 4 of the PopChart Server User Guide.
This option tells the PopChart Server to serve PNG images when possible. PopChart Server automatically checks to make sure that the client's browser supports PNG. If it does, it will send a PNG image.
If this option is enabled, you should also choose a PNG compression method. These are as follows:
This parameter offers the best compromise between the following two image compression settings.
This parameter will make the file as small as possible, but image compression will be extremely slow.
This parameter will compress the image as quickly as possible, but the file size will be significantly larger.
Though actual performance may vary from system to system, the latter two methods usually offer only a small increase in performance, while causing very slow image generation time and very large image sizes, respectively. Thus, default is usually the best option.
These options control how GIF and PNG images are generated in PopChart Server. On certain UNIX compatible systems, you may need to instruct PopChart Server to use the Pure Java AWT to obtain optimal performance (or, in certain circumstances, any performance at all).
Note: You can tell if changing these settings has any effect on font quality by restarting PopChart Server under the new settings and looking at the fonts in any GIF image returned by PopChart Server.
Depending on the configuration of your system, these settings may also enhance server performance, even on Microsoft Windows and Macintosh systems. More information about the Pure Java AWT is available in "Using the Pure Java AWT and Custom Fonts" in Chapter A of the PopChart Server User Guide.
Note: PJA is automatically included with Java VMs 1.4 and higher. Because of this, if you are using Java VM 1.4 or higher, you must disable PopChart Server's Pure Java AWT in the Administration Console.
Instructs PopChart Server to use the Pure Java AWT (PJA) when generating GIF or PNG images. By default, this setting is enabled on UNIX compatible systems, and disabled otherwise.
By default, this is set to Normal. Under certain circumstances, however, you will achieve better results using the Class Override setting.
By default, this is set to Default System Fonts. Under certain circumstances, however, you will achieve better results using the Use Corda Font Set setting.
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