Hi Leo, Leo Lim <[EMAIL PROTECTED]> wrote on 04/13/2007 05:51:56 PM:
> I?m trying to restrict image panning when an svg image?s bounds are exceeded. > Don?t want the user to pan further than this to the point that white > space ends up being visible. > Is there a way to do this? (Found some posts regarding overriding > the setRenderingTransform but I have no clue how to proceed). The 'setRenderingTransform' method is what updates the mapping of the SVG canvas to the screen. So if you intercept the AffineTransform and adjust the translate component you can limit the canvas from rendering anything outside of a particular region. You may also need to limit scale. As for how the limiting should be done, that is much trickier. You will need to combine the ViewingTransform (JSVGCanvas.getViewingTransform) with the new Rendering Transform. Then you can project the end points of the rectangle you want to restrict panning to through the AffineTransform. This will tell you what you would get if you applied the Rendering Transform. You can then adjust the RenderingTransform accordingly (limit scale so projected w/h is less than canvas w/h, adjust translate so the corners are within 0,0 and w/h). --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
