[mapserver-dev] SVG symbols with modifiable parameters

[Tamas Szekeres]

Hi Flavio,

The idea is great. Within the scope of this effort, I think we might
probably address this in a more generic way, such as:

1. Add a new symbol type where we can specify the geometries in a WKT or
WKB format.
2. Implement support for the curve geometries in the renderers.
3. (Optional: Modify the drivers to provide curve geometries without
polygonizing.)

Best regards,

Tamas



Flavio Hendry <flavio at tydac.ch> ezt írta (időpont: 2019. szept. 12., Cs,
8:30):

> Hi Steve and Tamas
>
> Me again, one more thought ... I am a big fan of MapServer VECTOR
> Symbols, with underestimated potential :-) ... There I can do almost
> anything, except "circular segments" (sure, could be done with a zillion
> of POINTS).
>
> see https://nodi.mapplus.ch/vector.png
> and https://en.wikipedia.org/wiki/Circular_segment
>
> In the sample, all symbols except 2 and 4 four from the left are VECTOR
> types, some with STYLE combinations.
>
> 2 could be done in such a way:
>
> SYMBOL
> NAME 'aw kappe'
> TYPE ELLIPSE
> FILLED true # or false, can be handled with STYLE
>     POINTS
>      1 1
>     END
>     ANGLE 0 # horizontal
>     THETA 60 # central angle
>     CLOSED true
> END
>
> the two parts of 4 could be done in such a way (afetr that STYLEs with
> OFFSETs:
>
> SYMBOL
> NAME 'aw benzin_left'
> TYPE ELLIPSE
> FILLED true # or false, can be handled with STYLE
>     POINTS
>      1 1
>     END
>     ANGLE 0 # horizontal
>     THETA 60 # central angle
>     CLOSED false # vertical line
> END
>
> SYMBOL
> NAME 'aw benzin_right'
> TYPE ELLIPSE
> FILLED true # or false, can be handled with STYLE
>     POINTS
>      1 1
>     END
>     ANGLE 180 # horizontal
>     THETA 60 # central angle
>     CLOSED false # open, no vertical line
> END
>
>
> --
> Mit freundlichem Gruss / Best regards
> Flavio Hendry
>
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