drawing setup units

[Anonymous]

I see that the LandXML export command lets users select which type of feet they desire but I'd like to know what type of foot is LDD using when the Project>Drawing setup>Units is set to feet.

Regards,

Dave

[Anonymous]

Whichever type of foot you're entering. If you entering data collected in US
feet then they are US feet. If your data is in International feet then
that's it.

If you have a coordinate system specified you should be sure to be entering
data that is in the same system. If you already know there are different
feet then you probably don't need to be told.

What I really want to know is which foot the INSBASE, INSUNITS,
INSUNITSDEFSOURSE and INSUNITDEFTARGET system variable are using. I should
just test this and find out. I'll almost guarantee that its International
feet.

Just set everything to Rods or Chains and Links and everything will be OK.
:)

Allen

wrote in message news:5157227@discussion.autodesk.com...
I see that the LandXML export command lets users select which type of feet
they desire but I'd like to know what type of foot is LDD using when the
Project>Drawing setup>Units is set to feet.

Regards,

Dave

[Anonymous]

Hi,

Feet are feet, it is that simple. However, in terms of feet, there are two
different definitions of what a meter is. There is no distinction in the LDT
Project Setup between U.S. Foot and International Foot (Only choices are
Imperial or Metric). Therefore; a warning should be issued when working
with AutoDesk LandXML files because they operate differently. When
exporting an Imperial LandXML Project , you can set the landXML data units
to either International or U.S. Survey Foot. Warning: the default out of the
box setting with LDT/LandXML is International Feet. There is no conversion
of land data during the export; a header is simply placed in the landxml
file that describes the units as US Foot or International.

Upon import of a landXML file, LDT looks at the user units set in their
landxml data settings (U.S. Foot, International Foot, or Metric) and
compares it to the header in the soon to be imported landxml file. If it is
different, a conversion of the land data is made as it is imported. This
conversion can be between feet and meters and also feet and feet ( this can
be dangerous). Luckily, a warning box pops up warning of the conversion
factor. If going between feet and feet, the user should never have to apply
a conversion factor, and therefore can reset the factor to 1 to make sure
that no conversion takes place.

If giving an Imperial landxml file to a professional with unknown
civil/survey software, make sure they understand what foot definition has
been written to the units header in the landxml file, and that no conversion
upon the data should be done. It might be a good practice to also give a
print out of the control data coordinates so that the recipient can check
against his/her data once the land data has been imported into their system


sc



"Allen Jessup" wrote in message
news:5157271@discussion.autodesk.com...
Whichever type of foot you're entering. If you entering data collected in US
feet then they are US feet. If your data is in International feet then
that's it.

If you have a coordinate system specified you should be sure to be entering
data that is in the same system. If you already know there are different
feet then you probably don't need to be told.