Input labels and line length based on two inputs

[graphtype]

Hello!

I'm trying to create a pline in a dynamic block where the length is determined by two values I would input into properties or as attributes. 

The first value 'A' will be a ground surface elevation

The second value 'B' will be a ground water elevation

I would like to the pline to have a length of A minus B. 

I would then also like to have mtext (or any other method of display text) to display the values of A and B.

For example, if I have a ground surface of 102 and a ground water of 91, my line length will be 11, and I can display a label of '102' at the top of the line and '91' at the bottom of the line. 

I've created dynamic blocks before, but none that have used an expression of two values or having to display inputted values. I'm not really sure where to start with this, or if it's even possible.

Thanks! 

[Charles_Shade · Accepted solution]

Cannot do so.

Attrib and Parameter entries cannot drive the Action.

These only read the Value of the Parameter afterwards.

On the opposite end of thsi conversation you can set this up so that the bottom is placed at 91 and then the top is Stretched to 102 and have those Values returned in the Labels (FIELD)

[truss_85]

Take a look block attached.

[truss_85 · Accepted solution]

Sorry I forgat attachment

[Charles_Shade]

Yep, like the above.

[graphtype]

Thanks! I figured out a way to do what I need to with what you and truss_85 posted.

[graphtype]

Thanks for posting the block, it was greatly appreciated.

[truss_85]

I am glad to help.