Setting for world elevation

[TinkyWinky]

I am constructing house and environment. For my mental stability, the reference elevation is 0 := FFL (finished floor level). This means that that the garden's elevation is below 0.

The rest of the world is at height 0 which does not look so well. My garden is certainly not a pit digged into the groud as the air view suggests.

What would help here is a setting for the world's elevation. If set to -90, it would be at about my garden's height.

[UbuntuBirdy]

Oh, this would be very cool! I would love to set the elevation of Thun from 568m to 3m and go directly from my door to the beach within a few steps! [B-)]

I can hardly believe that your mental stability is that unstable that you can not set your reference level to 90.

[TinkyWinky]

Hey, the beach is 200km horizontally but only 34m vertically away for me, so this wouldn't solve the issue. [;)]

To explain the motivation better:

My project has (currently) about 40 levels. I imagined it would be easier to calculate offsets between several coordinate systems:

• the bounder's plan uses normal height null as reference;
• the architect's plan uses FFL as reference which is 34.8m above NHN;
• the brick mason's notes use the lower edge of the base plate as reference which is 42cm below FFL;
• I use the moisture barrier as reference of height which is 16.5mm below FFL since it is visible from the outside when I plan the modeling of the garden's surface;
• when controlling the surface elevation, I use moisture barrier plus 50cm since my surveyor's level device is approx 10cm high and needs a tripod;
• upper floor uses FFL plus 2,91m, attic adds some more height.

I know, it's just addition and subtraction in the range of -100 to +800. Not that difficult, especially for a computer engineer, isn't it?

However, oversight or miscalculation is difficult to correct when using armoured concrete. A good rule to avoid oversight is to keep it as simple as possible which means to translate all systems to _one_ coordinate system. I would prefer FFL.

Which leads to the world simply being 1m too high. [:)]

[UbuntuBirdy]

Ok, now I totally understand your wish!