I have been trying to show an offset of a lower passage with the outline of the higher passage also shown on the offset.

 

So the main plan shows the high level in detail with the grey shadow of the lower passage. I would like the offset to show the detail of the lower passage with the outline of the higher passage.

To do this I tried the following map structure.

 

map keyhole1LLM #lower level map

  keyhole1ps3

  break

  keyhole1ps5

  break

  keyhole1ps4

  keyhole1ps7

  break

  keyhole1ps6

  keyhole1ps8

endmap

map keyhole1HLM # high level map

  keyhole1ps1

  break

  keyhole1ps2

endmap

 

map keyhole1M # combined map – not used

  keyhole1HLM

  break

  keyhole1LLM

endmap

 

map keyhole1LLpreHLM  # lower shown, higher outline

  keyhole1LLM

  preview above keyhole1HLM

endmap

 

map keyhole1Moffset # higher shown, lower grey - offset only lower shown ???

  keyhole1HLM

  keyhole1LLpreHLM [-10 50 m] below

endmap

 

The map keyhole1LLpreHLM shows what I want to offset with the detail of the lower passage and the higher in outline.

But when this is offset the higher outline vanishes!

Is the preview command the way to go about this or is it not possible at present?

 

John S