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  • 大小: 1KB
    文件類型: .rar
    金幣: 1
    下載: 0 次
    發布日期: 2021-04-21
  • 語言: Matlab
  • 標簽: Matlab??IGES??

資源簡介

matlab讀入IGS文件,實現三維數據點的顯示,有利于matlab編輯

資源截圖

代碼片段和文件信息

function?[ParameterData]=iges2matlab2(igsfile)
[fidmsg]=fopen(igsfile);

if?fid==-1
????error(msg);
end
c?=?fread(fid‘uint8=>uint8‘)‘;
fclose(fid);
nwro=sum((c((81:82))==10))+sum((c((81:82))==13));

edfi=nwro-sum(c(((end-1):end))==10)-sum(c(((end-1):end))==13);

siz=length(c);

ro=round((siz+edfi)/(80+nwro));

if?rem((siz+edfi)(80+nwro))~=0
???error(‘Input?file?must?be?an?IGES-file!‘);
end
roind=1:ro;

SGDPT=c(roind*(80+nwro)-7-nwro);

Sfind=SGDPT==83;
Gfind=SGDPT==71;
Dfind=SGDPT==68;
Pfind=SGDPT==80;
Tfind=SGDPT==84;

sumSfind=sum(Sfind);
sumGfind=sum(Gfind);
sumDfind=sum(Dfind);
sumPfind=sum(Pfind);
sumTfind=sum(Tfind);
noent=round(sumDfind/2);

ParameterData=cell(1noent+1);

ParameterData{end}=noent;
roP=sumSfind+sumGfind+sumDfind;
ential1=0;
for?i=(sumSfind+sumGfind+1):2:(roP-1)
???ential1=ential1+1;

????Dstr=c(((i-1)*(80+nwro)+1):(i*(80+nwro)-8-nwro));
????Pstart=str2num(char(Dstr(9:16)))+roP;

????if?i==roP-1
????????Pend=ro-sumTfind;
????else
????????Pend=str2num(char(c(((i+1)*(80+nwro)+9):((i+1)*(80+nwro)+16))))+roP-1;
????end

????Pstr=zeros(164*(Pend-Pstart+1));
????j=1;
????for?k?=?Pstart?:?Pend
????????Pstr(?((j-1)*64+1)?:?(j*64)?)=c(?((k-1)*(80+nwro)+1)?:?((k-1)*(80+nwro)+64));
????????j=j+1;
????end
????Pvec=str2num(char(Pstr));
????if?Pvec(2)==1
????????ParameterData{ential1}.X=zeros(1Pvec(3));
????????ParameterData{ential1}.Y=zeros(1Pvec(3));
????????ParameterData{ential1}.Z=zeros(1Pvec(3));
????????for?n?=?1?:??Pvec(3)
????????????ZT=Pvec(4);?
????????????ParameterData{ential1}.X(n)=Pevc(3+2*n);
????????????ParameterData{ential1}.Y(n)=Pevc(4+2*n);
????????????ParameterData{ential1}.Z(n)=ZT;
????????end
????else
????????ParameterData{ential1}.X=zeros(1Pvec(3));
????????ParameterData{ential1}.Y=zeros(1Pvec(3));
????????ParameterData{ential1}.Z=zeros(1Pvec(3));
????????for?n?=?1?:?Pvec(3)
??????????ParameterData{ential1}.X(n)=Pvec(1+3*n);
??????????ParameterData{ential1}.Y(1n)=Pvec(2+3*n);
??????????ParameterData{ential1}.Z(1n)=Pvec(3+3*n);
????????end
????end
end???
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?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????2208??2012-05-05?19:01??iges2matlab2.m

-----------?---------??----------?-----??----

?????????????????2208????????????????????1


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