[Qgis-developer] Thoughts on newly added "min-max map unit scale" feature

Tim Sutton lists at linfiniti.com
Thu May 8 16:21:12 PDT 2014


On Fri, May 9, 2014 at 12:13 AM, Nyall Dawson <nyall.dawson at gmail.com>wrote:

> Hi all,
> I've been playing with the newly added "min-max map unit scale"
> feature. While this is a great feature to have, I think in it's
> current form it's rather confusing for users.
> Currently, when clicking the little settings icon next to a size in
> map units, a dialog with "maximum scale" and "minimum scale" appears.
> It's not immediately obvious as to what these settings actually do -
> do they prevent the style showing outside these scale ranges? does the
> symbol size reset to some default value outside these ranges? or is
> the size clamped to the size it would take at these max/min scale
> ranges? It took a bit of experimenting for me to work out that this
> last behavior is what occurs.
> I think it would make a lot more sense if these max/min sizes were
> instead given in "mm", and the labels renamed to "Maximum size" /
> "Minimum size". To me this is much more intuitive - it would be
> immediately obvious that the size is set in map units, but limited so
> that it never become larger or smaller than these set size limits.

+1 - I think this approach will make it much more intuitive.



> This would take this feature from being an advanced feature which
> takes a lot of experimenting to tweak correctly to something I'd use
> on a regular basis!
> What's everyone else's thoughts on this?
> Nyall
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Tim Sutton - QGIS Project Steering Committee Member
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