| Re: changing resolution from 4km to 36 km grid in ENVI [message #50005] |
Thu, 07 September 2006 13:32  |
Jean H.
Messages: 472
Registered: July 2006
|
Senior Member |
|
|
surajchem@hotmail.com wrote:
> hi
> thanks again
> i was able to convert it into 36000m pixel size.
> but i am not able to change its map projection
>
> In the converts map projection parameter => i clicked on change proj, i
> changed from IS to lambert conformal conic projection,
> in output X size i changed it to 36000 from 0 and same with the Y size.
it should not be 0.... your input must have something wrong.
Try using your original (res = 3.7km) data, and set the output to 36 000
Jean
> In the conversion parameter i selected the warp method (RST,
> triangular(i didnt change any parameters in both)and rigorous) , and
> then i tried with nearest neighbor and cubic convolution
>
> after giving the output filname and after clicking Ok it gave me the
> error "array dimension exceeds greater than 0 , it may be invalid)
>
> thanks for helping me out
> Jean H. wrote:
>
>> well, if you really want a 36km resolution, you should multiply by
>> 9.712638661979991160365676420977 ... however it seems much simpler to
>> input the final pixel size (ie 36000)
>>
>> In other words, both should work!
>> Jean
>>
>> surajchem@hotmail.com wrote:
>>
>>> hey thanks
>>> i had one more thing to ask
>>> this header was for a 4 km file but the pixel size is 3706.51079 m so
>>> if i want to convert it into 36km, should i multiply pixel size by 9 or
>>> just imput 36000m.
>>> thanks
>>> sunny
>>>
>>> Jean H. wrote:
>>>
>>>
>>>> For the resolution:
>>>> Basic tools / resize data / then click on "set output dims by pixel size"...
>>>> For the projection:
>>>> Map / Convert map projection
>>>>
>>>> Jean
>>>> surajchem@hotmail.com wrote:
>>>>
>>>>
>>>> >hi,
>>>> >i have a earth data that is a IS projection with 4 km resolution . how
>>>> >can i convert projection to lambert conformal conic projection with 36
>>>> >Km resolution using ENVI. actually i pretty new at this.
>>>> >here is the header of the file
>>>> >*****************************************************
>>>> >ENVI
>>>> >description = {
>>>> > File Imported into ENVI.}
>>>> >samples = 10800
>>>> >lines = 5400
>>>> >bands = 1
>>>> >header offset = 0
>>>> >file type = ENVI Standard
>>>> >data type = 1
>>>> >interleave = bsq
>>>> >sensor type = Unknown
>>>> >byte order = 0
>>>> >map info = {Sample IS, 5400.5000, 2700.5000, 0.0000, 0.0000,
>>>> >3.7065017090e+003, 3.7065017090e+003, , units=Meters}
>>>> >projection info = {38, 6371007.2, 0.000000, 0.0, 0.0, 86400, 1, Sample
>>>> >IS, units=Meters}
>>>> >wavelength units = Unknown
>>>> >geo points = {
>>>> >1.0000, 2700.0000, 0.00000000, -180.00000000,
>>>> >5400.0000, 300.0000, 80.00000000, 0.00000000,
>>>> >10500.0000, 2700.0000, 0.00000000, 170.00000000,
>>>> >5400.0000, 3600.0000, -30.00000000, 0.00000000}
>>>> >pixel size = {3.70650171e+003, 3.70650171e+003, units=Meters}
>>>> > ************************************************************ *******************************
>>>> >thanks
>>>> >sunny
>>>> >
>>>
>>>
>
|
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| Re: changing resolution from 4km to 36 km grid in ENVI [message #50006 is a reply to message #50005] |
Thu, 07 September 2006 13:19  |
surajchem
Messages: 10
Registered: September 2006
|
Junior Member |
|
|
hi
thanks again
i was able to convert it into 36000m pixel size.
but i am not able to change its map projection
In the converts map projection parameter => i clicked on change proj, i
changed from IS to lambert conformal conic projection,
in output X size i changed it to 36000 from 0 and same with the Y size.
In the conversion parameter i selected the warp method (RST,
triangular(i didnt change any parameters in both)and rigorous) , and
then i tried with nearest neighbor and cubic convolution
after giving the output filname and after clicking Ok it gave me the
error "array dimension exceeds greater than 0 , it may be invalid)
thanks for helping me out
Jean H. wrote:
> well, if you really want a 36km resolution, you should multiply by
> 9.712638661979991160365676420977 ... however it seems much simpler to
> input the final pixel size (ie 36000)
>
> In other words, both should work!
> Jean
>
> surajchem@hotmail.com wrote:
>> hey thanks
>> i had one more thing to ask
>> this header was for a 4 km file but the pixel size is 3706.51079 m so
>> if i want to convert it into 36km, should i multiply pixel size by 9 or
>> just imput 36000m.
>> thanks
>> sunny
>>
>> Jean H. wrote:
>>
>>> For the resolution:
>>> Basic tools / resize data / then click on "set output dims by pixel size"...
>>> For the projection:
>>> Map / Convert map projection
>>>
>>> Jean
>>> surajchem@hotmail.com wrote:
>>>
>>>> hi,
>>>> i have a earth data that is a IS projection with 4 km resolution . how
>>>> can i convert projection to lambert conformal conic projection with 36
>>>> Km resolution using ENVI. actually i pretty new at this.
>>>> here is the header of the file
>>>> *****************************************************
>>>> ENVI
>>>> description = {
>>>> File Imported into ENVI.}
>>>> samples = 10800
>>>> lines = 5400
>>>> bands = 1
>>>> header offset = 0
>>>> file type = ENVI Standard
>>>> data type = 1
>>>> interleave = bsq
>>>> sensor type = Unknown
>>>> byte order = 0
>>>> map info = {Sample IS, 5400.5000, 2700.5000, 0.0000, 0.0000,
>>>> 3.7065017090e+003, 3.7065017090e+003, , units=Meters}
>>>> projection info = {38, 6371007.2, 0.000000, 0.0, 0.0, 86400, 1, Sample
>>>> IS, units=Meters}
>>>> wavelength units = Unknown
>>>> geo points = {
>>>> 1.0000, 2700.0000, 0.00000000, -180.00000000,
>>>> 5400.0000, 300.0000, 80.00000000, 0.00000000,
>>>> 10500.0000, 2700.0000, 0.00000000, 170.00000000,
>>>> 5400.0000, 3600.0000, -30.00000000, 0.00000000}
>>>> pixel size = {3.70650171e+003, 3.70650171e+003, units=Meters}
>>>> ************************************************************ *******************************
>>>> thanks
>>>> sunny
>>>>
>>
>>
|
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| Re: changing resolution from 4km to 36 km grid in ENVI [message #50008 is a reply to message #50006] |
Thu, 07 September 2006 12:23 |
Jean H.
Messages: 472
Registered: July 2006
|
Senior Member |
|
|
well, if you really want a 36km resolution, you should multiply by
9.712638661979991160365676420977 ... however it seems much simpler to
input the final pixel size (ie 36000)
In other words, both should work!
Jean
surajchem@hotmail.com wrote:
> hey thanks
> i had one more thing to ask
> this header was for a 4 km file but the pixel size is 3706.51079 m so
> if i want to convert it into 36km, should i multiply pixel size by 9 or
> just imput 36000m.
> thanks
> sunny
>
> Jean H. wrote:
>
>> For the resolution:
>> Basic tools / resize data / then click on "set output dims by pixel size"...
>> For the projection:
>> Map / Convert map projection
>>
>> Jean
>> surajchem@hotmail.com wrote:
>>
>>> hi,
>>> i have a earth data that is a IS projection with 4 km resolution . how
>>> can i convert projection to lambert conformal conic projection with 36
>>> Km resolution using ENVI. actually i pretty new at this.
>>> here is the header of the file
>>> *****************************************************
>>> ENVI
>>> description = {
>>> File Imported into ENVI.}
>>> samples = 10800
>>> lines = 5400
>>> bands = 1
>>> header offset = 0
>>> file type = ENVI Standard
>>> data type = 1
>>> interleave = bsq
>>> sensor type = Unknown
>>> byte order = 0
>>> map info = {Sample IS, 5400.5000, 2700.5000, 0.0000, 0.0000,
>>> 3.7065017090e+003, 3.7065017090e+003, , units=Meters}
>>> projection info = {38, 6371007.2, 0.000000, 0.0, 0.0, 86400, 1, Sample
>>> IS, units=Meters}
>>> wavelength units = Unknown
>>> geo points = {
>>> 1.0000, 2700.0000, 0.00000000, -180.00000000,
>>> 5400.0000, 300.0000, 80.00000000, 0.00000000,
>>> 10500.0000, 2700.0000, 0.00000000, 170.00000000,
>>> 5400.0000, 3600.0000, -30.00000000, 0.00000000}
>>> pixel size = {3.70650171e+003, 3.70650171e+003, units=Meters}
>>> ************************************************************ *******************************
>>> thanks
>>> sunny
>>>
>
>
|
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| Re: changing resolution from 4km to 36 km grid in ENVI [message #50011 is a reply to message #50008] |
Thu, 07 September 2006 11:35 |
surajchem
Messages: 10
Registered: September 2006
|
Junior Member |
|
|
hey thanks
i had one more thing to ask
this header was for a 4 km file but the pixel size is 3706.51079 m so
if i want to convert it into 36km, should i multiply pixel size by 9 or
just imput 36000m.
thanks
sunny
Jean H. wrote:
> For the resolution:
> Basic tools / resize data / then click on "set output dims by pixel size"...
> For the projection:
> Map / Convert map projection
>
> Jean
> surajchem@hotmail.com wrote:
>> hi,
>> i have a earth data that is a IS projection with 4 km resolution . how
>> can i convert projection to lambert conformal conic projection with 36
>> Km resolution using ENVI. actually i pretty new at this.
>> here is the header of the file
>> *****************************************************
>> ENVI
>> description = {
>> File Imported into ENVI.}
>> samples = 10800
>> lines = 5400
>> bands = 1
>> header offset = 0
>> file type = ENVI Standard
>> data type = 1
>> interleave = bsq
>> sensor type = Unknown
>> byte order = 0
>> map info = {Sample IS, 5400.5000, 2700.5000, 0.0000, 0.0000,
>> 3.7065017090e+003, 3.7065017090e+003, , units=Meters}
>> projection info = {38, 6371007.2, 0.000000, 0.0, 0.0, 86400, 1, Sample
>> IS, units=Meters}
>> wavelength units = Unknown
>> geo points = {
>> 1.0000, 2700.0000, 0.00000000, -180.00000000,
>> 5400.0000, 300.0000, 80.00000000, 0.00000000,
>> 10500.0000, 2700.0000, 0.00000000, 170.00000000,
>> 5400.0000, 3600.0000, -30.00000000, 0.00000000}
>> pixel size = {3.70650171e+003, 3.70650171e+003, units=Meters}
>> ************************************************************ *******************************
>> thanks
>> sunny
>>
|
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| Re: changing resolution from 4km to 36 km grid in ENVI [message #50022 is a reply to message #50011] |
Wed, 06 September 2006 15:39 |
Jean H.
Messages: 472
Registered: July 2006
|
Senior Member |
|
|
For the resolution:
Basic tools / resize data / then click on "set output dims by pixel size"...
For the projection:
Map / Convert map projection
Jean
surajchem@hotmail.com wrote:
> hi,
> i have a earth data that is a IS projection with 4 km resolution . how
> can i convert projection to lambert conformal conic projection with 36
> Km resolution using ENVI. actually i pretty new at this.
> here is the header of the file
> *****************************************************
> ENVI
> description = {
> File Imported into ENVI.}
> samples = 10800
> lines = 5400
> bands = 1
> header offset = 0
> file type = ENVI Standard
> data type = 1
> interleave = bsq
> sensor type = Unknown
> byte order = 0
> map info = {Sample IS, 5400.5000, 2700.5000, 0.0000, 0.0000,
> 3.7065017090e+003, 3.7065017090e+003, , units=Meters}
> projection info = {38, 6371007.2, 0.000000, 0.0, 0.0, 86400, 1, Sample
> IS, units=Meters}
> wavelength units = Unknown
> geo points = {
> 1.0000, 2700.0000, 0.00000000, -180.00000000,
> 5400.0000, 300.0000, 80.00000000, 0.00000000,
> 10500.0000, 2700.0000, 0.00000000, 170.00000000,
> 5400.0000, 3600.0000, -30.00000000, 0.00000000}
> pixel size = {3.70650171e+003, 3.70650171e+003, units=Meters}
> ************************************************************ *******************************
> thanks
> sunny
>
|
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| Re: changing resolution from 4km to 36 km grid in ENVI [message #50137 is a reply to message #50005] |
Fri, 08 September 2006 15:37 |
surajchem
Messages: 10
Registered: September 2006
|
Junior Member |
|
|
hi again
actually when i tried with geographic lat/long it worked and gave me
the whole world map
but converting to lambert seems a big problem
do u still use ENVI for ur research?
with regards
sunny
Jean H. wrote:
> surajchem@hotmail.com wrote:
>> hi
>> thanks again
>> i was able to convert it into 36000m pixel size.
>> but i am not able to change its map projection
>>
>> In the converts map projection parameter => i clicked on change proj, i
>> changed from IS to lambert conformal conic projection,
>> in output X size i changed it to 36000 from 0 and same with the Y size.
>
> it should not be 0.... your input must have something wrong.
> Try using your original (res = 3.7km) data, and set the output to 36 000
>
> Jean
>
>
>> In the conversion parameter i selected the warp method (RST,
>> triangular(i didnt change any parameters in both)and rigorous) , and
>> then i tried with nearest neighbor and cubic convolution
>>
>> after giving the output filname and after clicking Ok it gave me the
>> error "array dimension exceeds greater than 0 , it may be invalid)
>>
>> thanks for helping me out
>> Jean H. wrote:
>>
>>> well, if you really want a 36km resolution, you should multiply by
>>> 9.712638661979991160365676420977 ... however it seems much simpler to
>>> input the final pixel size (ie 36000)
>>>
>>> In other words, both should work!
>>> Jean
>>>
>>> surajchem@hotmail.com wrote:
>>>
>>>> hey thanks
>>>> i had one more thing to ask
>>>> this header was for a 4 km file but the pixel size is 3706.51079 m so
>>>> if i want to convert it into 36km, should i multiply pixel size by 9 or
>>>> just imput 36000m.
>>>> thanks
>>>> sunny
>>>>
>>>> Jean H. wrote:
>>>>
>>>>
>>>> >For the resolution:
>>>> >Basic tools / resize data / then click on "set output dims by pixel size"...
>>>> >For the projection:
>>>> >Map / Convert map projection
>>>> >
>>>> >Jean
>>>> >surajchem@hotmail.com wrote:
>>>> >
>>>> >
>>>> >>hi,
>>>> >>i have a earth data that is a IS projection with 4 km resolution . how
>>>> >>can i convert projection to lambert conformal conic projection with 36
>>>> >>Km resolution using ENVI. actually i pretty new at this.
>>>> >>here is the header of the file
>>>> >>*****************************************************
>>>> >>ENVI
>>>> >>description = {
>>>> >> File Imported into ENVI.}
>>>> >>samples = 10800
>>>> >>lines = 5400
>>>> >>bands = 1
>>>> >>header offset = 0
>>>> >>file type = ENVI Standard
>>>> >>data type = 1
>>>> >>interleave = bsq
>>>> >>sensor type = Unknown
>>>> >>byte order = 0
>>>> >>map info = {Sample IS, 5400.5000, 2700.5000, 0.0000, 0.0000,
>>>> >>3.7065017090e+003, 3.7065017090e+003, , units=Meters}
>>>> >>projection info = {38, 6371007.2, 0.000000, 0.0, 0.0, 86400, 1, Sample
>>>> >>IS, units=Meters}
>>>> >>wavelength units = Unknown
>>>> >>geo points = {
>>>> >>1.0000, 2700.0000, 0.00000000, -180.00000000,
>>>> >>5400.0000, 300.0000, 80.00000000, 0.00000000,
>>>> >>10500.0000, 2700.0000, 0.00000000, 170.00000000,
>>>> >>5400.0000, 3600.0000, -30.00000000, 0.00000000}
>>>> >>pixel size = {3.70650171e+003, 3.70650171e+003, units=Meters}
>>>> >> ************************************************************ *******************************
>>>> >>thanks
>>>> >>sunny
>>>> >>
>>>>
>>>>
>>
|
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| Re: changing resolution from 4km to 36 km grid in ENVI [message #50138 is a reply to message #50005] |
Fri, 08 September 2006 15:34 |
surajchem
Messages: 10
Registered: September 2006
|
Junior Member |
|
|
hi Jean,
Sorry to bother you again, but some how the Lambert conformal conic
map projection doesnt show up, and when it does is just a part of
south america where as i need the china region
so according to my china map region that i need to use and created a
customized lambert conformal conic projection
with 0 E, 0 N , cental meridian: 110 E, latitude of projection origin :
34 N
and the two std parallels 25 N and 40 N.
so in convert map projection box
when i clicked this projection it changed all the required inputs and
output X and Y pixel accordingly . also should i select any thing in
the option?
in the conversion parameter what should i choose RST, triangular or
rigourous.
and the choose nearest neighbor.
still no luck it say error that dimension should be greater than zero.
now i am really confused.
thanks for helping me
sunny
Jean H. wrote:
> surajchem@hotmail.com wrote:
>> hi
>> thanks again
>> i was able to convert it into 36000m pixel size.
>> but i am not able to change its map projection
>>
>> In the converts map projection parameter => i clicked on change proj, i
>> changed from IS to lambert conformal conic projection,
>> in output X size i changed it to 36000 from 0 and same with the Y size.
>
> it should not be 0.... your input must have something wrong.
> Try using your original (res = 3.7km) data, and set the output to 36 000
>
> Jean
>
>
>> In the conversion parameter i selected the warp method (RST,
>> triangular(i didnt change any parameters in both)and rigorous) , and
>> then i tried with nearest neighbor and cubic convolution
>>
>> after giving the output filname and after clicking Ok it gave me the
>> error "array dimension exceeds greater than 0 , it may be invalid)
>>
>> thanks for helping me out
>> Jean H. wrote:
>>
>>> well, if you really want a 36km resolution, you should multiply by
>>> 9.712638661979991160365676420977 ... however it seems much simpler to
>>> input the final pixel size (ie 36000)
>>>
>>> In other words, both should work!
>>> Jean
>>>
>>> surajchem@hotmail.com wrote:
>>>
>>>> hey thanks
>>>> i had one more thing to ask
>>>> this header was for a 4 km file but the pixel size is 3706.51079 m so
>>>> if i want to convert it into 36km, should i multiply pixel size by 9 or
>>>> just imput 36000m.
>>>> thanks
>>>> sunny
>>>>
>>>> Jean H. wrote:
>>>>
>>>>
>>>> >For the resolution:
>>>> >Basic tools / resize data / then click on "set output dims by pixel size"...
>>>> >For the projection:
>>>> >Map / Convert map projection
>>>> >
>>>> >Jean
>>>> >surajchem@hotmail.com wrote:
>>>> >
>>>> >
>>>> >>hi,
>>>> >>i have a earth data that is a IS projection with 4 km resolution . how
>>>> >>can i convert projection to lambert conformal conic projection with 36
>>>> >>Km resolution using ENVI. actually i pretty new at this.
>>>> >>here is the header of the file
>>>> >>*****************************************************
>>>> >>ENVI
>>>> >>description = {
>>>> >> File Imported into ENVI.}
>>>> >>samples = 10800
>>>> >>lines = 5400
>>>> >>bands = 1
>>>> >>header offset = 0
>>>> >>file type = ENVI Standard
>>>> >>data type = 1
>>>> >>interleave = bsq
>>>> >>sensor type = Unknown
>>>> >>byte order = 0
>>>> >>map info = {Sample IS, 5400.5000, 2700.5000, 0.0000, 0.0000,
>>>> >>3.7065017090e+003, 3.7065017090e+003, , units=Meters}
>>>> >>projection info = {38, 6371007.2, 0.000000, 0.0, 0.0, 86400, 1, Sample
>>>> >>IS, units=Meters}
>>>> >>wavelength units = Unknown
>>>> >>geo points = {
>>>> >>1.0000, 2700.0000, 0.00000000, -180.00000000,
>>>> >>5400.0000, 300.0000, 80.00000000, 0.00000000,
>>>> >>10500.0000, 2700.0000, 0.00000000, 170.00000000,
>>>> >>5400.0000, 3600.0000, -30.00000000, 0.00000000}
>>>> >>pixel size = {3.70650171e+003, 3.70650171e+003, units=Meters}
>>>> >> ************************************************************ *******************************
>>>> >>thanks
>>>> >>sunny
>>>> >>
>>>>
>>>>
>>
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