Update qgs project by @urskaufmann

[ponceta]

Update qgs project by @urskaufmann

[sjib]

Next version
changes 29.5.2024

• dryweather downspout relation defined for vw_tww_reach (dryweather downspout should be dafined on reach, not on manholes)
• in vw_tww_wastewater_structure / structure parts / dryweather downspout: Bezeichnung changed to: Dryweather Downspout: is normally a part of a channel! (imo dryweather downspout can be deleted for vw_tww_wws, but if there is data for wws, you will not see this and can not change).
• in vw_tww_reach a new tab structure_parts with the dryweather downspout.
• Structure Parts without link, unlink, zoom and duplicate option. They are part of a wastewater structure and can not be linked to another wws.
• Structure Parts shown with identifier, not with obj_id
• deleted the empty "File" Frames for structure_parts in attribut form.
• vw_tww_reach.ws_identifier: enforce unique value does not work, if there are more then one reaches connected to a channel.
• changed all color_names to "twwc_* and with a hint in the name, which table/attribute: channel usage, catchment_area drainage_system, wastewater_structure building_condition = renovation_necessity = urgent xxx = condition
• changed all colors to sia405-colors (usage_current), to VSA GEP-Darstellung (renovation_necessity) to VSA wiki Erfassungsgrundsätze, Beispiel Einzugsgebiet (catchment area).
• stiles for catchment area current and planned
• new stile vw_tww_reach: network_plan_sia405.

stiles for catchment area current and planned Several Problems:
-- there should be a letter for the profile_typ -> we have to join the vl to get this info. I did till no never use this letter.
-- there should be a abbr for the usage -> we have to join the vl to get this info. If the color shows the usage, then this letter is very optional.
-- there should be a abbr for the function_hydraulic -> we have to join the vl to get this info. I think the current normalcase is to show this function_hydraulic with special symbols (hashed line or markerlines for pump_pressure_pipe Pumpendruckleitung or seepage_water_drain Sickerleitung)
-- there should be a label for reliner_material, but there are no common known abbreviations for reliner material...
-- there is no rule for different labels e.g. for PAA/SAA.

• new style vw_tww_wastewater_structure: network_plan_sia405. Several Problems:
  -- there a lot of symbols defined in sia405 and in vsa_graphische Darstellung, but it's not actual, in dss2020 there are many new functions
  -- there should be a abbr for special functions -> we have to join the vl to get this info.
  -- the definiton in vsa_graphische_Darstellung vor infiltration_installation is not possible (you can not draw 4 lines 0.35 with even distance within 1.4...)
  -- I am not happy with this long list of symbols, each consisting of 1 to 4 layers, and for every layer you have to define the same complex color-expression, each symbol should have a flexible size-definition, dependent in the mapscale, visibilty dependent on the mapscale.
  -- Symbols for wwtp_subclass_objects are not possible (wwtp-objects are not really part of vw_tww_wastewater_structure).

I have not tested, but I think with all this joins, tww will slow down. For me, it's not worth to fit to this old (outdated) sia405-visualisation guide...

• although we have now a vw_change_points, to symbolize this points with the sia405-symbols, they should be turned vertical to the reach/reaches...

[sjib]

Decision: Leave like this. If someone want to further develop the stiles please open a new issue and describe a concept.