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Z value referencing block

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Does anybody know a way of creating a block attribute that will reference the z value of a separate 3d model (topographical survey) at a given point?


I know the z value of the block itself can be listed as a simple block attribute but I need the reference to check for the z value of an unlinked model which will be inserted/ x-reffed beneath the block.


Any ideas?





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Create a block that consists only of a point, with an attribute that shows the Z value of the point.

The block inserted in a drawing, even if the input point is selected on an X-ref will show the height !

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Hi Steven,


The block would need to have multiple points (corners of a building) and would not necessarily snap directly onto an object on the topo. To be honest I'm not sure it's something that's really possible having though about it.





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