Lisp to create Building Envelope with various offsets.

[andyb57J]

I have been trying to create a lisp which will create a building envelope typical to the attached where offset vary depending on government and /or client requirements.  Generally we draw each envelop individually and then copy and adjust where necessary, but I would like to automate the for use in very large concepts.

 

The lot boundaries will generally be a closed polyline this is not necessary.

 

From the attached image and dwg all components B to H are variable and depend on government and client requirements. Component I is variable and subject to variable A which is the lot frontage.

If this frontage and less than 14m then component I is a solid line, if over 14m then it is a broken line.  Component I is subject to engineering earthworks and would require a selection for which side or line to place that line (Built to Boundary Wall).

 

 

As stated I would really like to automate the creation of the Building Envelope and all the entered variable are maintained until the lisp is closed.

 

Hope this explains it enough

BLE.dwg

 

it would be great f the offsets could be conditioned so that depending on the frontage the lisp would automatically apply the correct offsets.

 

The below is an example of offsets as required by a government.  Generally they are not as complex as this table but it gives an idea of what is necessary.

 

Edited 3 hours ago by andyb57J