[mapguide][MG158][Modified] Please allow specification of lines and polygon borders in m...

[Tom Fukushima]

You can view the artifact detail at the following URL:

    https://mapguide.osgeo.org/servlets/Scarab/id/MG158

Type:
Enhancement

Artifact ID:
MG158 (Please allow specification of lines and polygon borders in map units/mapping space)

Modified by:
Tom Fukushima
tomfukushima (tom.fukushima at autodesk.com)

The following modifications were made to this artifact:
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-- Justification set to new value:
Old value:
Two examples:

- At large scales, I want road centrelines to show up at the their physical width, as defined in the database.  I don't have a polygonal roads coverage; this allows me to shade the roads.

- I want to be able to do the same with utility pipes to show their physical width.

I can work around this by pre-processing the lines into polygons (using FME), but it would be much nicer if I could just define a map-units line width in the application.


New value:
Two examples:

- At large scales, I want road centrelines to show up at the their physical width, as defined in the database.  I don't have a polygonal roads coverage; this allows me to shade the roads.

- I want to be able to do the same with utility pipes to show their physical width.

I can work around this by pre-processing the lines into polygons (using FME), but it would be much nicer if I could just define a map-units line width in the application.


>From Kevin Mayall:
I've been wanting this in MG for some time.  

Another example: say I have a polygon layer (parcels, zoning, habitats) and the boundary of the polygon should be interpreted as imprecise - say, the actual line could be within 10 feet on either side.  I would want this line to have a 20-foot width, that is defined in ground/map units.

This avoids the common issue of having users attribute false precision to boundary locations as they zoom in.  It's a big issue in map use.




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