Mike, Thank you so much for helping me try to figure this out, I owe you lunch, big time...
>> This is due to the accumulation of rounding errors when rendering the >>components of the timeline Well, this is a nice piece of information to have. This make perfect sense. This thing is so complex we have to work around rounding errors. I love this. >> If instead what you want is a vertical line that is 'fixed' to a particular >>date No, I have the Timeline.PointHighlightDecorators all figure out and programmed in. I have 3 time-lines up on my browser. 1) History of the United States 2) History of Germany 3) History of France They are stacked on top of each other and are the same width. When the 3 time-lines appeared, all three have their center date on July 4th, 1776. All three time-lines have a red line vertically drawn on the date July 4th, 1776. All three time-lines are tied together by their center date. So if one timeline is moved the other 2 move to its center date. And the red line which is placed at the center date appears not to move, because it is always at the center date of all three time-lines. So I go to the " History of the United States" timeline and I double click on December 7th, 1941. All three time-lines scroll, in unison, until their new center date is December 7th, 1941 (this is pretty cool looking). The red center lines are now at December 7th, 1941, on all 3 time-lines, and appear NOT to have moved. Therefore, guided by the red line, centered on all 3 time-lines, I can view what was happening on December 7th, 1941 in Germany, France and the United States. It is pretty cool when you think about it. Thanks Jeff Roehl jroe...@yahoo.com (818) 912-7530 >________________________________ > From: Michael Nosal <mno...@mitre.org> >To: simile-widgets@googlegroups.com >Sent: Monday, July 23, 2012 1:51 PM >Subject: Re: [Simile-Widgets] How to make an object remain stationary on a >timeline > > >Okay, then I'm missing something. You wrote: >I would like to place a stationary object on my timeline. I would like to >place a line on the timelines centerdate using getCenterVisibleDate(). I would >like to do this externally, without changeing the javascript source-code for >times-lines. > > >I took this to mean that you wanted a line, that would remain fixed on screen >as you scrolled the timeline left and right, the same way that the Timeline >copyright notice remains fixed at the bottom left of the timeline. > > >If instead what you want is a vertical line that is 'fixed' to a particular >date, then you should use Timeline.PointHighlightDecorator. This will draw a >single vertical line across the band at a specific date. >This vertical line will move across the screen as you drag the timeline left >and right, but it will remain on the specific date you created it. > > >Your said you want the multiple timelines to scroll in unison about the same >center date, so the same Timeline.PointHighlightDecorator will be lined up >across all timelines. > > >It is true the visual center of the timeline div is not always exactly the >same pixel as the center visible date. This is due to the accumulation of >rounding errors when rendering the components of the timeline, but it is >supposed to be within a couple of pixels. > >You can dynamically update and position Timeline.PointHighlightDecorators as >well. > > >--Mike > > -- You received this message because you are subscribed to the Google Groups "SIMILE Widgets" group. To post to this group, send email to simile-widgets@googlegroups.com. To unsubscribe from this group, send email to simile-widgets+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/simile-widgets?hl=en.
