> 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]> 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 <[EMAIL PROTECTED]>
> *Sent:* Monday, October 27, 2008 9:19 PM
> *To:* OpenJump develop and use <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]> 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
>>
>>
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>
>
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> http://amusingprogrammer.blogspot.com/
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