[Dhsvm-users] Converting binary to ascii In DHSVM
Bowling, Laura C
bowling at purdue.edu
Mon Feb 28 06:55:50 PST 2005
I think your problem is trying to output the travel time file. There
are two problems with this: 1) the travel time file is an input file to
DHSVM if you are using the unit hydrograph method of routing. If you
have not created this file, the model cannot do it for you; 2) the
website was out of date regarding which map variable ids can currently
be output, I have just updated the variable id list on the website. If
your favorite variable is not on the list, it doesn't mean that it
cannot be output, just that you might need to do some editing of the
DumpMap() in ExecDump.c in order to do it :)
I would also like to point out that since you are outputting IMAGES not
MAPS the output values will be re-scaled to conserve space. That is,
after you convert your swq from binary to ascii, the value will not be
swq in meters, but rather (swq-offset)/range * MAXUCHAR. If you do not
want to deal with this conversion, output MAP variables instead.
Finally, a note on how I located your problem for future reference:
* I searched ReportError.c for "Invalid variable ID in", to determine
the error code associated with this error message. It was '26'.
* I searched the source code to find which file contains the DumpMap
function. In unix you can use grep: grep 'DumpMap' *.c It is in the
ExecDump.c file.
* I opened ExecDump.c and found the DumpMap function and searched for
the occurrence of ReportError(*, 26) to determine when this error could
be generated.
* Since this function is using a case block to sort through each
variable id, I looked for each variable you were attempting to output
and determined that 'case 006' doesn't exist.
--
Laura C. Bowling
Assistant Professor
Department of Agronomy
Purdue University phone: (765) 494-8051
915 W. State St. fax: (765) 496-2926
West Lafayette, IN 47907-2054 bowling at purdue.edu
-----Original Message-----
From: dhsvm-users-bounces at mailman1.u.washington.edu
[mailto:dhsvm-users-bounces at mailman1.u.washington.edu] On Behalf Of
Piotr Kuras
Sent: Sunday, February 27, 2005 3:35 PM
To: User Support list for DHSVM Model
Subject: RE: [Dhsvm-users] Converting binary to ascii In DHSVM
Thank you Dr. Bowling,
But it seems that I spoke too soon when I said I had already created the
image output files...had the model running while trying to figure out
the conversion of binary to ascii...I had an error message come up when
the model got to the particular time period that I specified, not sure
if I am missing something in the files (a definition of the variables
perhaps) or if I simply queried incorrectly. I got the variable id's
from the DHSVM website. If you could please help that would be great.
The message that comes up is "Invalid variable ID in: DumpMap
Here is the excerpt from the DHSVM Master file regarding the optional
ouput. Perhaps if you could spare the time, you good see if I have
typed something incorrectly. thank you
########## Model Maps ###############################################
Number of Map Variables = 0
########## Model Images ###############################################
# Number of Image Variables = 3
# 503, 006, 404
Number of Image Variables = 3 # Number of variables for
which you
# would like to output images
# For each of the variables make a block like the one that follows,
varying
# the number of the variable (n = 1, .. , Number of Image Variables)
Image Variable 1 = 006 # ID of the variable to
output
Image Layer 1 = # If the variable exists for a
number
# of layers, specify the
layers here
# with the top layer = 1
Image Start 1 = 05/08/2029-0 # First timestep
for which to output
# an image
Image End 1 = 05/12/2029-23 # Last timestep
for which to output
# an image
Image Interval 1 = 1 # Time interval between images
(hours)
Image Upper Limit 1 = 48 # All values in the output
equal to or
# greater than this limit will
be set
# to 255
Image Lower Limit 1 = 0 # All values in the output
equal to or
# smaller than this limit will
be set
# to 0
Image Variable 2 = 404 # ID of the variable to
output
Image Layer 2 = # If the variable exists for a
number
# of layers, specify the
layers here
# with the top layer = 1
Image Start 2 = 05/08/2029-0 # First timestep
for which to output
# an image
Image End 2 = 05/12/2029-23 # Last timestep
for which to output
# an image
Image Interval 2 = 1 # Time interval between images
(hours)
Image Upper Limit 2 = 0.5 # All values in the output
equal to or
# greater than this limit will
be set
# to 255
Image Lower Limit 2 = 0 # All values in the output
equal to or
# smaller than this limit will
be set
# to 0
Image Variable 3 = 503 # ID of the variable to
output
Image Layer 3 = # If the variable exists for a
number
# of layers, specify the
layers here
# with the top layer = 1
Image Start 3 = 05/08/2029-0 # First timestep
for which to output
# an image
Image End 3 = 05/12/2029-23 # Last timestep
for which to output
# an image
Image Interval 3 = 1 # Time interval between images
(hours)
Image Upper Limit 3 = 4 # All values in the output
equal to or
# greater than this limit will
be set
# to 255
Image Lower Limit 3 = 0 # All values in the output
equal to or
# smaller than this limit will
be set
# to 0
########## Graphic Images #############################################
Number of Graphics = 0
-----Original Message-----
> Date: Sun Feb 27 12:20:12 PST 2005
> From: "Bowling, Laura C" <bowling at purdue.edu>
> Subject: RE: [Dhsvm-users] Converting binary to ascii In DHSVM
> To: "User Support list for DHSVM Model" <dhsvm-users at u.washington.edu>
>
> Yes you can use the same command to go from the binary output file to
an
> ascii file. You will have to check on the website to determine the
form
> of the binary file for each variable output. For example, water table
> depth should be a grid of floats, so the command would be:
>
> convert float ascii outfile.bin outfile.asc #rows #columns
>
> -----Original Message-----
> From: dhsvm-users-bounces at mailman1.u.washington.edu
> [mailto:dhsvm-users-bounces at mailman1.u.washington.edu] On Behalf Of
> Piotr Kuras
> Sent: Saturday, February 26, 2005 4:15 PM
> To: dhsvm-users at u.washington.edu
> Cc: Younes Alila
> Subject: [Dhsvm-users] Converting binary to ascii In DHSVM
>
> Hello,
>
> I have generated three optional output files (images) in DHSVM which
> display the water table depth, travel time and snow water equivalent.
> The files are in .bin format, and I would like to convert them to
ascii
> so I can display them in GIS.
>
> For converting ascii to binary, I have been using the convert.exe
> application from DHSVM using a ms-dos batch file. In the ms-dos batch
> file I would normally write the command:
>
> convert ascii uchar input_file.asc out_file.bin #rows #columns
>
> I'm not sure if I can convert the other way (binary to ascii using the
> same convert.exe file) and if I can does anyone know what command to
> use? or does someone have a different application for this purpose.
>
> Your help would be much appreciated, thank you,
>
> Pete Kuras
> --
> Piotr Kuras
> M.A.Sc. Candidate
> Department of Forest Resources Management
> University of British Columbia
> 2424 Main Mall
> Vancouver, BC V6T-1Z4
> Canada
> Cell: 778-883-8538
> E-mail: kuras at interchange.ubc.ca
>
> _______________________________________________
> Dhsvm-users mailing list
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--
Piotr Kuras
M.A.Sc. Candidate
Department of Forest Resources Management
University of British Columbia
2424 Main Mall
Vancouver, BC V6T-1Z4
Canada
Cell: 778-883-8538
E-mail: kuras at interchange.ubc.ca
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