Jeff Dege wrote: > In Openlayers/Control/OverviewMap.js, in the function > OpenLayers.Control.OverviewMap.setRectPxBounds(), we have two lines: > > this.extentRectangle.style.height = parseInt(Math.max(bottom - > top, 0))+ 'px'; > this.extentRectangle.style.width = parseInt(Math.max(right - > left, 0)) + 'px'; > > These set the width and height of the extent rectangle, as it is being > drawn in the OverviewMap. > > Because of the Math.max(..., 0), we prevent negative widths or heights. > But we do allow for zero widths and height. Which means that the > extentRectangle is sometimes not drawn at all. > > This is only an issue if you are using a single-scaled overview map, or > if you have maxRatio set fairly large. But if you are using a > single-scaled overview map, you probably want the extent rectangle to be > drawn. > > MapServer replaces the box with a cross-hair, when the box gets small. > I'm not suggesting that, right now. But I do think that we should set > the minimum size of the extentRectangle so that it is always visible. > > I've been playing with this in IE6, and from what I can see, widths and > heights of 1 are also no drawn. So I'd suggest: > > this.extentRectangle.style.height = parseInt(Math.max(bottom - > top, 2))+ 'px'; > this.extentRectangle.style.width = parseInt(Math.max(right - > left, 2)) + 'px';
Please add your thoughts to ticket #472 - which was opened for this purpose. http://trac.openlayers.org/ticket/472 Tim _______________________________________________ Dev mailing list [email protected] http://openlayers.org/mailman/listinfo/dev
