Stefan Steiniger a écrit : > 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. > Moreover, at the moment, OpenJUMP do not know in which coordinate system the data actually are. And the resolution needed for a geographic system (in degrees) may be quite different from resolution of a projected system (usually in meters)
Michaël > 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 > > > ------------------------------------------------------------------------- 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
