Hei, just a thought on the Google zoom slider: they have one advantage: they know their data and it goes just in an out from a certain resolution [5m?] to the world.. so they have a fixed frame. While GIS data in general could reach from [mm] to whatever scale. And you do not need an option to zoom out to the whole world if your data just covers 2km.
my 2 cents :) stefan Larry Becker wrote: > > Regarding the use of logarithmic scale: Google map uses 18 levels > of zooming with each level doubling the resolution of the previous > one. It can cover from the entire earth surface to the street level, > sufficient in most cases. > > > That is a very good point. > > Techies obviously enjoy choices but too many ways to do about same > thing causes confusion to regular call center workers. > > Another good point.. This saves the development list from the > inevitable suggestion by me that perhaps we should implement the Google > Map zoom tool. :-) > > I think if I can find how to set the "step size" of the JSlider then > I have the control. > > I think that step size is not the issue, and that the logarithmic scale > will be difficult to override. Perhaps it would be easier to simply add > "+" and "-" buttons on either end that zoom by a factor of two. This is > a relatively standard UI zoom feature. > > regards, > Larry > > > On Mon, Oct 27, 2008 at 10:11 PM, Bing Ran <[EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]>> wrote: > > Hi Larry, > > I did some research and it turned out that the step size is > controlled by the BasicSliderUI behind JSlider (I'm using Substance > L&F) in my case and move 1/10 of the total value range. In case of > metal L&F it jumps by one unit. I don't know if there is a simple > way of configuring that. > > > Regarding the use of logarithmic scale: Google map uses 18 levels of > zooming with each level doubling the resolution of the previous one. > It can cover from the entire earth surface to the street level, > sufficient in most cases. In my case I'm doing a advanced restaurant > search tool often I feel the OpenJUMP zooming jumps a little too > fast. I think if I can find how to set the "step size" of the > JSlider then I have the control. > > Any Swing insight here? > > > Thanks > > Bing > > > *From:* Larry Becker <mailto:[EMAIL PROTECTED]> > *Sent:* Monday, October 27, 2008 9:19 PM > *To:* OpenJump develop and use > <mailto:jump-pilot-devel@lists.sourceforge.net> > *Subject:* Re: [JPP-Devel] zoombar > > Hi Bing, > > I'm not sure if the zoom bar can display the full range of zooms > if the step size is only 2. It is kind of like a logarithmic > scale. The zoom bar's purpose is to provide a fast way of making > gross changes in zoom levels, and to display the current zoom > level's order of magnitude. The usual way of zooming by a factor of > two is to use the zoom tool, either by explicitly selecting it, or > by using a quasimode modifier key (Alt). A more dynamic zoom > capability is available with the Zoom Realtime tool (use left and > right mouse drag to reposition and zoom at the same time). > > regards, > Larry > > On Mon, Oct 27, 2008 at 4:53 AM, Bing Ran <[EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]>> wrote: > > I'd like to change the step size of the zoombar from 10 to 2 for > example. Currently the zoom level change by an order of > magnitude when I click on either side of the knob. I couldn't > figure this out. > > Any help is appreciated. > > Bing > > > > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move > Developer's challenge > Build the coolest Linux based applications with Moblin SDK & win > great prizes > Grand prize is a trip for two to an Open Source event anywhere > in the world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > <http://moblin-contest.org/redirect.php?banner_id=100&url=/> > _______________________________________________ > Jump-pilot-devel mailing list > Jump-pilot-devel@lists.sourceforge.net > <mailto:Jump-pilot-devel@lists.sourceforge.net> > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > > > > > -- > http://amusingprogrammer.blogspot.com/ > > ------------------------------------------------------------------------ > > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's > challenge > Build the coolest Linux based applications with Moblin SDK & win > great prizes > Grand prize is a trip for two to an Open Source event anywhere in > the world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > <http://moblin-contest.org/redirect.php?banner_id=100&url=/> > > ------------------------------------------------------------------------ > > _______________________________________________ > Jump-pilot-devel mailing list > Jump-pilot-devel@lists.sourceforge.net > <mailto:Jump-pilot-devel@lists.sourceforge.net> > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's > challenge > Build the coolest Linux based applications with Moblin SDK & win > great prizes > Grand prize is a trip for two to an Open Source event anywhere in > the world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > <http://moblin-contest.org/redirect.php?banner_id=100&url=/> > _______________________________________________ > Jump-pilot-devel mailing list > Jump-pilot-devel@lists.sourceforge.net > <mailto:Jump-pilot-devel@lists.sourceforge.net> > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > > > > > -- > http://amusingprogrammer.blogspot.com/ > > > ------------------------------------------------------------------------ > > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's challenge > Build the coolest Linux based applications with Moblin SDK & win great prizes > Grand prize is a trip for two to an Open Source event anywhere in the world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > > > ------------------------------------------------------------------------ > > _______________________________________________ > Jump-pilot-devel mailing list > Jump-pilot-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Jump-pilot-devel mailing list Jump-pilot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel
