Area calcul in familly tables

[lzanettin]

Hello,

I need help to have the area of all instances in familly tables.

What is your method?

I have a parameter called SURFACE

And a relation : SURFACE=MP_SURF_AREA

but in the familly table, after adding the parameter SURFACE, and verifying all instances,

the aera is the same of the generic part.

My instance have different dimensions so I need each area for each instances.

Anyone have a solution?

Thanks

Laurent

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[mbonka]

Hello,

put your relation for AREA calculating in POST REGENERATION relations. (see attached picture). In my opinion it means that ProE will do following:

- regenerate model (change of size)

- calculate relations

[mbonka · Accepted solution]

[lzanettin]

Thank you,

it works fine,

In my family table, is it possible to put a "-" instead of the area for some instance?

we need the area only for gold plated instance.

Laurent

[dschenken]

Yes, but it is complicated. You need a text type parameter to hold a "-" and a way to determine if the item is gold plated.

To put the text representation of a real value into a text type you need to convert the calculated area into a text type parameter. There hasn't been a function that converts real numbers to strings, but you can make one that is close.

I'm certain someone has posted it here already, but will look.

[dschenken]

This is a conversion from a real number, area_real to a string area_string. If the item is plated, as indicated by the parameter plated_boolean, it sets the value to "-"

/*itos(int) Converts integers to strings. Here, int can be a number or an expression. Nonintegers are rounded off.

/*extract(string, position, length) Extracts pieces of strings.

/*string_length(parameter name) returns the length in characters of the string contained by parameter name

/* Create the following parameters of the type shown in the suffix. Only the fill_in_zeros_string is given an initial value

/* area_real will be set to whatever measurement result area is obtained from.

/* Parameter area_real

/* Parameter area_fraction_real

/* Parameter area_string

/* Parameter area_whole_string

/* Parameter area_fraction_string

/* Parameter decimal_places_integer

/* Parameter fill_in_zeros_string ="0000000000000000"

/* Parameter plated_boolean

/* Relations to convert real to string with given number of decimal places.

/* this is to prevent rounding of the area if itos was used directly

area_whole_string= itos(floor(area_real))

area_fraction_real = area_real - floor(area_real)

area_fraction_string = itos(area_fraction_real*10^decimal_places)

/* This replaces leading zeros; .0001 * 10000 = 1; needs to be 0001

if string_length(area_fraction_string) < decimal_places_integer

area_fraction_string = extract(fill_in_zeros_string, 1, decimal_places_integer-string_length(area_fraction_string) ) + area_fraction_string

endif

area_string = area_whole_string + "." + area_fraction_string

if plated_boolean <> True

area_string = "-"

endif

[TomD.inPDX]

Never noticed that button. Great tip, Milan!

From the help files...

3.	If you specified any relations as Post Regeneration, the system solves these relations after the regeneration is complete.