+1 A. Il 14/nov/2014 00:22 "Andreas Neumann" <[email protected]> ha scritto:
> I correct myself regarding issue 1: > > It is not unpredictable and even corresponds nicely with the scale - so > map display and legend display are nicely in sync. But I think we need to > be able to restrict legends where map units are involved to a certain > min/max scale range. So the symbols don't get too big or too small and get > into each others way. > > Andreas > > > > On 13.11.2014 23:29, Andreas Neumann wrote: > >> Hi, >> >> We need to solve a number of open issues with the legend - preferably in >> the next QGIS release. This concerns mainly the print composer legend, but >> perhaps the legend in the legend tree could be solved at the same time. At >> the same time we should also think how these improved legends could be >> exposed in QGIS server. >> >> I am trying to list the things I would like to see improved: >> >> 1. Support for legends for graphical properties defined with map units. >> Currently these legends display in the print composer at very strange, >> unpredictable and unusable sizes. E.g. a stroke-width or dash defined in >> map units is either way too big or too small. Same for symbol sizes defined >> in map units. We need a way to translate these map units in usable paper >> units suitable for display in the legend. Let the map author define a >> corresponding mm size (along with the map units) - solely for the display >> of the legend. >> >> 2. Display of legends for graphical properties defined with data-defined >> symbology. We need a way to specify common graphical properties in the >> legend that are of interest in the legend. F.e. - if I define the colors >> data-defined I would like to be able to specify the expected colors that >> may appear in my data/project. This could be either done dynamically (by >> scanning the data) or statically (decided by the map author). Perhaps both >> methods. To me, the static method may be more predictable and more >> performant. >> >> 3. Legends for diagrams (pie charts, bar charts) - something similar to >> http://esri.force.com/servlet/rtaImage?eid=087300000008Nki&; >> feoid=Body&refid=0EM30000000Co0O - showing both sizes and colors - >> nicely stacked into each other. >> >> 4. Legends for labels - here we also have the same issue: how can we >> display a label legend where graphical properties are set based on >> data-defined values? >> >> ------------------- >> >> I know this is not yet well specified - but I would like to open the >> discussion how we can solve the above issues. And I am looking for a QGIS >> developer who is interested in solving the above issues. If you are >> interested in developing above listed improvements, please join the >> discussion or contact me offlist. >> >> Do you have ideas how to solve the issues with map units and data-defined >> symbology? >> >> There is at least one other german organization (QGIS user) who is >> interested in this and would help finance this effort. Perhaps we can find >> more organizations who would help finance. >> >> Thank you for joining the discussion, >> >> Andreas >> _______________________________________________ >> Qgis-developer mailing list >> [email protected] >> http://lists.osgeo.org/mailman/listinfo/qgis-developer >> > > _______________________________________________ > Qgis-developer mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/qgis-developer >
_______________________________________________ Qgis-developer mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-developer
