[fusion-dev] A defect in ViewOptions widget?
Michael Adair
madair at dmsolutions.ca
Tue Aug 9 09:06:47 EDT 2011
Arthur,
I'm hoping to be working on that one next week.
Mike
On 08/08/2011 10:24 PM, Arthur Liu wrote:
>
> Hi Mike,
>
> Yes, that's the ticket I'm talking about. ;-)
>
> Just wonder to know if anyone else met the similar problem and to see
> if there's any workaround.
>
> Regards,
>
> Arthur
>
> *From:*fusion-dev-bounces at lists.osgeo.org
> [mailto:fusion-dev-bounces at lists.osgeo.org] *On Behalf Of *Michael Adair
> *Sent:* Friday, August 05, 2011 9:30 PM
> *To:* fusion-dev at lists.osgeo.org
> *Subject:* Re: [fusion-dev] A defect in ViewOptions widget?
>
> Arthur,
>
> I assume you are referring to http://trac.osgeo.org/fusion/ticket/467,
> I had a quick look at that last week and my guess is that the WKT
> coming back for the pseudo-mercator is incorrect or not being parsed
> correctly but I haven't got further than that yet.
>
> Mike
>
> On 05/08/2011 4:22 AM, Arthur Liu wrote:
>
> Hi experts,
>
> I meet a strange problem on commercial layer based map, and I think
> this might be a defect in ViewOptions widget. I would like to know if
> there's anyone else who ever met similar issues before.
>
> The map I used is defined in Google Mercator(EPSG:900913) and it
> works fine when I use the default unit(meter) ViewOptions.
>
> However, when I change the unit to "degree" in ViewOptions, the
> displayed value from the CursorPosition is not correct anymore.
>
> The expected value should be (-119.9707, 40.0646), but the value I get
> is (-120.7833,44.0925). The longitude value is acceptable while the
> latitude value is far from the correct value.
>
> In ViewOptions widget, it simply does an unit conversion regardless
> which coordinate system is being used. It just times
> 0.000009044(degrees per meter pre-defined in fusion.js) based on my
> original position value to get the result. I have little experience
> about coordinate system, but it seems that EPSG:900913 is flatter than
> other WGS84 coordinate systems. Is it the cause of this issue? Is it
> needed for ViewOptions to enhance its function?
>
> Regards,
>
> Arthur
>
>
>
>
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