So there are two examples that spring to mind that foil with the zorder tools we're looking at. To asciiify Naz's diagram, the normal case looks something like:
ggpppplllLllyyyyrrrrr for g=mapgraphic, p=point, l=line, y=polygon, r=raster. Hitting move to top on the capital L leads to: ggppppLlllllyyyyrrrrr That makes sense. But the next two examples are less nice. 1 - ggpplppllLlyyyyrrrr 2 - ggppplllLlyypyyrrrr Essentially, the described behaviour of moving the L line to the top of the lines breaks down in these cases. There are two ways to look at this, A. move L to be above the first line or B. move L to be below the last point. 1A - ggppLlpplllyyyyrrrr 1B - ggpplppLlllyyyyrrrr 2A - ggpppLllllyypyyrrrr 2B - ggpppllllyypLyyrrrr I was thinking to do something that doesn't quite meet the description of the tool, and move the layer to the top of it's current, continuous block of like layers: 1 - ggpplppLlllyyyyrrrr 2 - ggpppLllllyypyyrrrr The downsides of that being the case where the selected layer is the outlier: before - ggppppllllyyLyyrrrr after - ggppppllllyyLyyrrrr ...and the difficulty in explaining what is happening in the tool tip. Thoughts? On 14 February 2012 21:50, Jody Garnett <[email protected]> wrote: > Correct; that is basically the ordering which allows the "most" content > to be visible. So when adding a new layer; it should sift down into the > right spot by default. > > You are correct that people can mess with the zorder (i.e. drawing order) > after the layer has been added; this natural ordering is an application of > the uDig Guideline "Sensible default". > > -- > Jody Garnett > > On Tuesday, 14 February 2012 at 3:19 PM, Nazareno Chan wrote: > > Hi Guys,**** > > ** ** > > Just wanna clarify some details regarding the ‘natural sorting’ to be > implemented on Legend View:**** > > ** ** > > 1. Is the diagram below correct regarding the natural ordering of > layers?**** > > 2. Noting that using the Layers View, the user can rearrange the > layers anyway they want, irregardless or natural ordering:**** > > § For example, moving a line layer to the front, do we look for the > lowest point layer and move it below this? Or the highest line layer and > move it above this? **** > > § If the lowest point layer was placed below the lines? Or the highest > line layer above the points?**** > > ** ** > > **** > > ** ** > > Thanks,**** > > Naz Chan**** > > ------------------------------ > The contents of this email are confidential and may be subject to legal or > professional privilege and copyright. No representation is made that this > email is free of viruses or other defects. If you have received this > communication in error, you may not copy or distribute any part of it or > otherwise disclose its contents to anyone. Please advise the sender of your > incorrect receipt of this correspondence. > _______________________________________________ > User-friendly Desktop Internet GIS (uDig) > http://udig.refractions.net > http://lists.refractions.net/mailman/listinfo/udig-devel > > > > _______________________________________________ > User-friendly Desktop Internet GIS (uDig) > http://udig.refractions.net > http://lists.refractions.net/mailman/listinfo/udig-devel > > -- Mark Leslie Geospatial Software Architect LISAsoft ------------------------------------------------------------- Ph: +61 2 8570 5000 Fax: +61 2 8570 5099 Mob: +61 Suite 112, Jones Bay Wharf 19-21 Pirrama Rd Pyrmont NSW 2009 ------------------------------------------------------------- LISAsoft is part of the A2end Group of Companies http://www.ardec.com.au http://www.lisasoft.com http://www.terrapages.com
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