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Re: very slow Save[]s on Mathematica V7??

  • To: mathgroup at smc.vnet.net
  • Subject: [mg96317] Re: very slow Save[]s on Mathematica V7??
  • From: congruentialuminaire at yahoo.com
  • Date: Wed, 11 Feb 2009 05:22:58 -0500 (EST)
  • References: <gmp0ot$bvf$1@smc.vnet.net> <gmrlvq$9ij$1@smc.vnet.net>

Thanks Igor. 2 questions:

1. Is this documented anywhere?
2. is there an option to inhibit this "default" behavior?

Regards..RogerW

On Feb 10, 2:47 am, Igor Antonio <igoranto... at gmail.com> wrote:
>
> Franklin,
>
> Support for SHP files was added in V7.  In version 6, you're just
> importing the list of filenames inside the zip file.  With V7, Import
> expands the zip file, recognizes the SHP bundle, and Imports the map
> contained in the file.
>
> In[2]:= a =
>  Import["http://exampledata.wolfram.com/usamap.zip";,
>   ImageSize -> Medium]
>
> Out[2]= {"railroads.dbf", "railroads.prj", "railroads.shp", \
> "railroads.shx", "states.dbf", "states.prj", "states.shp", \
> "states.shx"}
>
> In[3]:= $Version
>
> Out[3]= "6.0 for Mac OS X x86 (64-bit) (May 21, 2008)"
>
> =========================
==
> =================
>
> In[5]:= a =
>   Import["http://exampledata.wolfram.com/usamap.zip";,
>    ImageSize -> Medium];
>
> In[6]:= Head@a
>
> Out[6]= Graphics
>
> In[7]:= ByteCount@a
>
> Out[7]= 15319544
>
> In[8]:= $Version
>
> Out[8]= "7.0 for Mac OS X x86 (64-bit) (November 11, 2008)"
>
> Igor



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