I want to constrain one endpoint of a line (or preferably a vertex of 3D polyline) to a point in a block, including its Z value.
I use the software Novapoint as an add on to AutoCAD, and with Novapoint I can create blocks that show the elevation of a point. These blocks consist of two Attribute Definitions, but basically it's a plus sign and a textbox. This block can be moved around (in x,y and z direction) and is always displaying its current elevation (Z value). See attached picture of the block in the Bedit command (plushöjd means elevation in Swedish).
I want to constrain the endpoint of a line (the white line in the attached screenshot) so that it always matches the X, Y, and Z values of the point in the center of the plus sign of the block So if I move the point in any direction (including Z) I want the endpoint of the line to follow along. Is this possible?
