Offline use of Paclets
in [Mathematica]
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From: A. B. on 26 Sep 2009 06:14 Thank you. > A. B. wrote: >> Hello, David, >> >> Could you please expand on the last bit. How did you 'Save' the data once >> downloaded ? >> >>> Alexey wrote: >>>> Hi, >>>> Is there a way to force Mathematica 7 to load full set of paclets for >>>> further offline use? If I know that some time I will not have access >>>> to Internet but I will need use paclet data (e.g. GraphData[]), what >>>> command I should use for loading ALL paclet-files associated with >>>> GraphData[] and storing them offline? It there universal way for any >>>> type of such data (GraphData[], KnotData[], LatticeData[] etc.)? >>>> >>> There does not seem to be a totally satisfactory solution to this, in >>> that it would seem that if Mathematica thinks there is an internet >>> connection, it will try to refresh the data, and generate errors if the >>> connection is weak or drops part way through the update. This can be >>> particularly troublesome while giving a presentation! >>> >>> I solved this by loading all the data I required, and storing it >>> separately using Save. >>> >>> David Bailey >>> http://www.dbaileyconsultancy.co.uk >>> >> >> > > > Well the exact details obviously depend on what data you need. Here is > some code that extracts the country data needed for a particular > program. I created two variables and a function containing the data and > then saved the result away using DumpSave (I could have used Save, but > binary files are faster for bulky data sets). > > AllCountries=CountryData[]; > AllPolygonData=CountryData[#,{"Polygon","Equirectangular"}]&/@AllCountries; > Map[(CountryPolygonData[Evaluate[#]]=CountryData[#,"Polygon"])&,AllCountries]; > DumpSave["saveddata.mx",{AllCountries,AllPolygonData,CountryPolygonData}]; > > Read the data back using Get, and Mathematica will never go and > interrogate the internet. > > David Bailey > http://www.dbaileyconsultancy.co.uk > > > |