| Re: number problem [message #61264 is a reply to message #61198] |
Thu, 10 July 2008 07:14  |
d.poreh
Messages: 406
Registered: October 2007
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Senior Member |
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On 10 Jul., 07:01, Vince Hradil <hrad...@yahoo.com> wrote:
> On Jul 9, 11:59 pm, d.po...@gmail.com wrote:
>
>
>
>
>
>> On 9 Jul., 11:11, Conor <cmanc...@gmail.com> wrote:
>
>>> On Jul 9, 6:50 am, d.po...@gmail.com wrote:
>
>>>> folks
>>>> i have a .TXt file like this:
>
>>>> 499750.95298079 3387735.57676302 1259.18847656 34.63407516
>>>> 499730.95491979 3387755.57503202 1259.18847656 34.66235733
>>>> 499710.95685879 3387775.57330102 1257.50012207 34.69063950
>>>> 499690.95879779 3387795.57157002 1255.97583008 34.71892166
>
>>>> and i did some analyze in IDL but result is like this:
>
>>>> 499750. 3.38774e+006 1259.00 34.0000
>>>> 499730. 3.38776e+006 1259.00 34.0000
>>>> 499710. 3.38778e+006 1257.00 34.0000
>>>> 499690. 3.38780e+006 1255.00 34.0000
>
>>>> but as you can see the result are not same. i used long-float and
>>>> ULL. but no answer.
>>>> any help
>>>> Cheeres
>
>>> I'm afraid you're going to have to include a lot more information
>>> before anyone can help. How are you reading in the data? It looks
>>> like you're just reading in the data as a long integer, when in
>>> reality you want doubles.- Zitierten Text ausblenden -
>
>>> - Zitierten Text anzeigen -
>
>> yes i just read the data and keep it in the 4*1470 array. i just want
>> to get the same data in the resualt.
>
> Yes - we need more info to go on...
>
> IDL> arr = dblarr(4,4)
> IDL> openr, 1, 'c:\test.txt'
> IDL> readf, 1, arr
> IDL> free_lun, 1
> IDL> print, arr
> 499750.95 3387735.6 1259.1885 34.634075
> 499730.95 3387755.6 1259.1885 34.662357
> 499710.96 3387775.6 1257.5001 34.690640
> 499690.96 3387795.6 1255.9758 34.718922
>
> Hmmm... looks okay to me?- Zitierten Text ausblenden -
>
> - Zitierten Text anzeigen -
i don't know still not work this is my idl to read some data:
function read_DE,file
file=dialog_pickfile(filter='*.txt')
openr,lun,file,/get_lun
header=strarr(5)
readf,lun,header
utx=(dblarr(10000))
uty=(dblarr(10000))
elv=(dblarr(10000))
col=(dblarr(10000))
row=(dblarr(10000))
dist=(dblarr(10000))
a=0&b=0&c=0&d=0&e=0&f=0
count=0
while (NOT EOF(lun)) DO BEGIN
readf,lun,a,b,c,d,e,f
utx(count)=a
uty(count)=b
elv(count)=c
col(count)=d
row(count)=e
dist(count)=f
count=count+1
endwhile
utx=utx(0:count-1)
uty=uty(0:count-1)
elv=elv(0:count-1)
col=col(0:count-1)
row=row(0:count-1)
dist=dist(0:count-1)
data=fltarr(4,count)
data[0,*]=utx
data[1,*]=uty
data[2,*]=elv
data[3,*]=dist
free_lun, lun
return,data
end
and this is a few lines of import data:
RiverTools Channel Profile
Number of profile points: 1472
UTM-x UTM-y Elev Col
Row Distance
521228.87049479 3394754.96918202 2221.55273438 1078
592 0.00000000
521208.87243379 3394754.96918202 2218.10253906 1077
592 0.01999806
521188.87437279 3394754.96918202 2215.02856445 1076
592 0.03999612
521168.87631179 3394754.96918202 2212.82934570 1075
592 0.05999418
521148.87825079 3394754.96918202 2210.48925781 1074
592 0.07999224
521128.88018979 3394754.96918202 2207.43017578 1073
592 0.09999030
521108.88212879 3394754.96918202 2204.14746094 1072
592 0.11998836
521088.88406779 3394754.96918202 2201.20776367 1071
592 0.13998643
521068.88600679 3394754.96918202 2198.28808594 1070
592 0.15998448
521048.88794579 3394754.96918202 2195.11572266 1069
592 0.17998254
521028.88988479 3394754.96918202 2192.23193359 1068
592 0.19998060
521008.89182379 3394754.96918202 2190.31323242 1067
592 0.21997866
520988.89376279 3394774.96745102 2187.50000000 1066
591 0.24826033
520968.89570179 3394774.96745102 2185.21508789 1065
591 0.26825839
520948.89764079 3394774.96745102 2183.00000000 1064
591 0.28825647
520928.89957979 3394794.96572002 2181.38085938 1063
590 0.31653816
520908.90151879 3394794.96572002 2180.30151367 1062
590 0.33653623
520888.90345779 3394794.96572002 2177.80688477 1061
590 0.35653430
520868.90539679 3394794.96572002 2174.75122070 1060
590 0.37653238
but still i can't get proper answer, this is lat-lon data and i need
exact data.
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