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資源簡介

不再維護或支持gprMax的先前版本(V2),這是最后一個更新版本,GprMax 2.0 最終更新版

資源截圖

代碼片段和文件信息

function?[HeaderFields]=gprmax(name);

%?GPRMAX3D??Read?binary?data?generated?by?‘GprMax3D‘?and?‘GprMax2D‘
%???????????simulators?for?ground?probing?radar.
%
%???????????[Header?Fields]?=?gprmax(?‘filename‘?)
%???????????filename?is?the?name?of?a?binary?format?file?generated?either
%???????????from?‘GprMax3D‘?or?‘GprMax2D‘
%
%???????????Header?is?a?structure?containing?details?of?the?model
%
%???????????Fields?is?a?structure?containing?the?electromagnetic?fields?at
%??????????????????the?requested?output?points?for?a?number?of?requested
%??????????????????steps
%???????????
%
%???????????(NOTE:?The?field?matrices?of?snapshots?cary?3D?data?
%???????????Copyright:?Antonis?Giannopoulos?1997?2002?2005
%???????????This?file?is?not?part?of?the?‘GprMax3D‘?programme?for?ground?probing?
%???????????radar?simulation?and?can?be?freely?distributed.






FT_3D=30200;
FT_2D=20200;
SMALL=0;
BIG=0;
if(nargin==0)
error(‘GprMax3D?requires?at?least?one?argument‘);
end;

if(nargin==1)
type=‘native‘;
end;

if(isstr(name)~=1)
error(‘First?argument?is?not?a?filename‘);
end;

fid=fopen(name‘rb‘);
if(fid==-1)
error([‘Can?not?open?=‘name]);
end;


ECHECK1=fread(fid1‘char‘);
if(strcmp(setstr(dec2hex(ECHECK1))‘2B‘)==1?)
?SMALL=0;
?BIG=1;
end;
if(strcmp(setstr(dec2hex(ECHECK1))‘67‘)==1?)?
?SMALL=1;
?BIG=0;
end;
ECHECK2=fread(fid1‘char‘);
if(BIG==1)
?if(strcmp(setstr(dec2hex(ECHECK2))‘67‘)?==?0)
?error([‘This?is?not?a?GprMax2D/3D?file.‘]);
?end;
end;
if(SMALL==1)
?if(strcmp(setstr(dec2hex(ECHECK2))‘2B‘)?==?0)
?error([‘This?is?not?a?GprMax2D/3D?file.‘]);
?end;
end;
%?If?you?are?here?you?have?a?valid?file.?Unless?someone?is?playing?a?but?joke?!!
%?Close?and?open?again?to?make?sure?you?will?read?it?properly.
fclose(fid);
if(SMALL==1)
fid=fopen(name‘rb‘‘ieee-le‘);
end;
if(BIG==1)
fid=fopen(name‘rb‘‘ieee-be‘);
end;
%?Read?Endian?again?but?no?check?!
temp=fread(fid1‘short‘);
%?Read?type?of?file
FileType=fread(fid1‘short‘);
SWORD=fread(fid1‘short‘);
SREAL=fread(fid1‘short‘);
titleLENGTH=fread(fid1‘short‘);
SOURCELENGTH=fread(fid1‘short‘);
MEDIALENGTH=fread(fid1‘short‘);
RESERVED=fread(fid2‘char‘);
if(SWORD==2)
?word=‘short‘;
end;
if(SWORD==4)
?word=‘long‘;
end;
if(SREAL==4)
?real=‘float‘;
end;
if(SREAL==8)
?real=‘double‘;
end;

%?Set?Defaults?for?all
Model=struct([]);
Rx=struct([]);

%?Set?title?to?none
%Model(1).title=‘No?title‘;




switch?FileType

????case?FT_2D+4?%?2D?snapshot
????????disp([‘Reading?GprMax2D?#snapshot:?file?...‘name]);
????????Model(1).title=fread(fidtitleLENGTH‘char‘);
????????Model(1).title=setstr(Model(1).title‘);
????????Model(1).iterations=fread(fid1real);
????????Model(1).dx=fread(fid1real);
????????Model(1).dy=fread(fid1real);
????????Model(1).dt=fread(fid1real);
????????Model(1).globalTx=fread(fid1word);
????????Model(1).Snapx1=fread(fid1word);
????????Model(1).Snapy1=fread(fid1word);
????????Model(1).Snapx2=fread(fid1word);
????????Model(1).Snapy2=fread(fid1word);
????????Model(1).Snapxs=fread(fi

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