[esp-r] Re: esp-r import 3rd party geometry

Jon Hand (clcv10) jon at esru.strath.ac.uk
Mon Apr 2 11:41:13 BST 2007


A recent question about importing ZIP format geometry into ESP-r....

>
> There were functions in esp-r that allow importing 3rd party  
> geometry like ZIP but couldn't be found any more (in V11.2).
> Were these functions been removed or buried some where?
>

Zip file import is available in the current version as well as the  
release that
is currently in final testing.  (For others who do not know... ZIP is  
not the compressed
file format commonly found in Windows boxes,  it is a CAD file format  
defined about 15
years ago in the Department of Arhitecture at the University of  
Strathclyde in Glasgow.

An example....

If you have a file called demo.zip and it has multiple zones in it and
you want to see interactively what is being imported you should go
to ESP-r's zone geometry menu and ask for a new zone.  One of
the options listed is 'load existing zip'.

This will pop up a wireframe image of each zone (including two legacy
geometric component types called default doors and default windows) that
might be included within the ZIP file.

You are asked for confirmation as the default door
or window located correctly and then it will ask you what it is
composed of and what name you want to give it when it
is converted to an ESP-r surface.

I just double checked this facility and it works well for ZIP file  
import
but some portions of the wire-frame display might be obsured so
it is helpful to have a sketch of what is contained in the ZIP file
so that you can correctly label and attribute the legacy components.

There is an alternative import approach in the project manager
in the top level menu in the 'Import & export' section.  This will
do the import silently but you will have to return to each of the
newly created zones and change the surface names and attributions
and misinterpretations in the case where there are several windows/doors
to inserted into a wall.

The 'Import and export' section also handles import from other
CAD formats.  Note that there are rules to follow when creating
geometry within 3rd party tools so that ESP-r has a better chance
of importing the CAD data.  These rules have been the subject
of several older ESP-r list discussions so look in the archives
for further information.

-Jon Hand


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