Topic: Matching an insertion point returned by lisp

[TimBlanch]

I have some blocks that have the insertion point of another block as an attribute that were populated with a my routine using BlockReference.Position.X + "," + BlockReference.Position.Y
It looks like this: 37783577.0223232,193175979.810159

There is a routine that we are using written in lisp that is trying to see if these points match and they don't of course because the routine I have written in .Net is rounded off earlier.
The lisp returns this: 3.778357702232322E+007,1.931759798101591E+008

Does anyone know a way for me to increase the number of decimal places my .Net routine returns?  and I'm not sure about the E notation being a problem yet.

Thanks,
Tim

[gile]

Hi,

As far as I know, LISP and .NET real numbers should have the same accuracy, both use double precision numbers.

When comparing real numbers or points, you may use a tolerance:

Code - Lisp: [Select]

1. (equal p1 p2 1e-9)

Code - C#: [Select]

1. p1.IsEqualTo(p2, new Tolerance (1e-9, 1e-9));