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Hi John,

The data were flipped, so I had to apply a fix, think it was largely because the data started at top left, not sure if this is the best method:

sz=size(zdata,1)
zdata = zdata&# ...

Thanks for the update Paul. I was using ftn95 v8.70.

Hello all,

Finally sorted out the binary read; it is a fiddly job!

The binary file does not have any obvious header within it, but must have some reference to record length. The solution that wo ...

Hi

Added the correction to allocate the dimensions.

The run-time error is:

Silverfrost 64-bit exception report on D:\Geoscience\Fortran\Test\Binary2.exe Thu Apr 29 17:32:57 2021

Unforma ...

Hi Bill,

Thanks for the link, that helped to understand the structure of the ESRI BIL format. I tried the following just to attempt to read the data from the file 'faa.bil' into the allocatable var ...

Hello,

I am interested to know how a binary file can be read to store x, y, z values.

The ESRI BIL format has a separate header with the following:

BYTEORDER I
LAYOUT BIL
NROWS 120
NCOLS 1 ...

Many thanks

Modify to suit:

program readzvals
implicit none
integer :: ncols,nrows,i
real :: xllc,yllc,cellsize,nodata_value
real, allocatable, dimension(:,:) ...

Hello,

Just a quick query. How do you read a header, store the values in variables (first 6 lines) and the rest of the data are z values:

ncols 120
nrows 120
xllcorner -5.000000
yllcorner -5. ...

Hello all,

How does one implement a double or triple integral in F95 ? Working with equations of the form f(x,y) or f(x,y,z) and defined numerical limits for x,y and z.

Be useful to see some exa ...

Many thanks for the pointers. The X and Y are 2D arrays so just had to tweak the line:

write (25,'(f15.10,f15.10)') (X(i,:), Y(:,i), i=1, npoints)
...

Hello,

I am trying to write X,Y values to a file from a 2D array, but the data does not output correctly in 2 columns for X and Y. At present in writes X as 2 columns and then Y appended on the end ...

Hello,

I have a quick query. I have a data file which is an ascii file and I can read and process the file i/o in text fine but was wondering if it is easy to write the otput as a binary (real*4) f ...

Hi David,

Yes the code you show is what I was looking for, thanks for the corrections and the pointers - always helpful. The orginal code came from
Do you mean something like:

Program Gravso ...

Hello,

I have a simple program that reads a datafile in scanline format and writes out an XYZ file (longitude, latitude and value). Everything is set fine and the input and output files are read fi ...

Great Paul, that worked perfectly Smile

Cheers
Lester