With the 3. If you are extending the JDBC driver, start by implementing an org. Finally implement the methods and extend the classes you wish to change. When designing reports that contain nested report items, selecting individual report items within the Report Editor can be difficult.
By default when selecting the XML View of a report, the file is opened and the file cursor is placed at the top of the design. Finding a specific item in this view can be difficult. Now the user can select the report item from the outline and theXML View will automatically place the cursor at the report item location within the XML source. In the 2. This method can be very useful when embedding the output into existing HTML pages.
If you are rendering multiple reports within the same HTML page you can set a prefix that is used when the engine creates CSS style names. This can be used to prevent style conflicts. With the release of BIRT 3. To remove line separators and tabs which will produce a much smaller HTML file, the developer can use the following options.
Developers can now limit the number of pages generated when rendering to PDF by using code similar to the following:. This feature is useful if you wish to show report run times separate from report render times. With this release these page variables can now be rendered in the body of the report using the Viewtime-Value-Of tag within a text element. For example if you are using page variables to set a group page number you can use the following syntax within a text element to show this page number within the body of a report.
In addition to the above changes, the BIRT team has enhanced performance and made concurrency and memory optimizations in many areas of the product. These changes include reducing memory for reports containing SVG images, eliminating memory consumption within the HTML emitter related to bookmarks, and concurrency issues with reports containing line feeds.
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Got it. Lastly, SVG files can be indexed by search engines like Google. If you want to place a text-heavy infographic or other SVG display on your page, including keywords text in the image can help your page rank and improve your SEO.
SVG files tend to store images more efficiently than common raster formats as long as the image is not too detailed.
SVG files contain enough information to display vectors at any scale, whereas bitmaps require larger files for scaled-up versions of images — more pixels use up more file space. This is good for websites because smaller files load faster on browsers, so SVGs can increase overall page performance. As I mentioned, SVG files work best for images that contain less detail than a photograph. Most icons translate well to vectors, given their simplicity and clearly defined borders.
Icons for page elements like buttons will need to be responsive for varying screens sizes, which means they must be perfectly scalable. The SVG format is particularly well suited for logos, which appear in website headers , emails, and printed on anything from pamphlets to hoodies to billboards. Again, logos tend to be simpler in design, which lends nicely to the SVG format. Vectors also suit non-photo visual art nicely. Decorative drawings on webpages can both scale easily and conserve file space if added as SVG files.
The illustrations below, even the textures on some shapes, can be achieved with SVGs. Image Source. By harnessing the capabilities of CSS and JavaScript, you can set SVGs to change their appearance dynamically, and be triggered automatically or after some event trigger.
Animated SVGs can serve to add visual flair to your pages, or they can be used to engage with user interface animations:. Would your website benefit from informational displays, like an infographic or illustrated chart? This is another useful application for SVGs. Your designs will scale seamlessly, and text within the SVG file is indexable. You can even design charts as SVGs that update dynamically based on real-time data input.
If you want to simply open an SVG image without editing it, you can do so directly in your web browser, since browsers are designed to interpret and display SVGs. To modify an SVG file, you could directly modify the SVG file in a text editor, but this is impractical for changing most things beyond colors. Instead, use software for editing vector art.
Free and paid options include:. You can draw your vectors in one of the programs listed above and export in an SVG format. Each program has its own limitations and learning curve. If you plan to explore SVGs further, try out a few options and get a feel for the tools available before settling on a free or paid option.
Scalable vector graphics come in handy in many different scenarios. Editor's note: This post was originally published on October , and has been updated for comprehensiveness. Originally published Mar 21, AM, updated November 02
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