wie kann ich bestimmte Infos aus Textdokument einlesen?

[Boyington]

Folgende ist mein Programm (code von dir gemacht), durch Drücken von Button2 werden STL-Datei eingelesen, und durch Drücken von Button3 wird die Liste in Log.txt gespeichert.

Delphi-Quellcode:

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, GLScene, GLMisc, GLVectorFileObjects, GLWin32Viewer, GLFileSTL,
  Menus, ComCtrls, StdCtrls, ExtCtrls, GLTexture, GLObjects, GLHUDObjects;

type
    TVektor = record
    x, y, z: real;
    end;

    TDreieck = record
    n: TVektor;
    p: array[1..3] of TVektor;
    end;
.
.
.
Var
  Form1: TForm1;
  Dreiecke:array of TDreieck;
.
.
.
//PROCEDURE TMain.Test; <--bekomme ich Fehlermeldun

FUNCTION FindLine(const s:string; raiseerr:boolean):boolean;
var
  line:integer;
  list:TStrings;
begin
   while (line<list.count) and (Copy(Trim(list[line]),1,Length(s))<>s) do inc(line);
   if line<list.count then result:=true
      else if not raiseerr then result:=false
         else raise Exception.Create(s+' nicht gefunden.');
end;


FUNCTION ReadNumber(const s:string; var i:integer):real;
var j:integer;
begin
   j:=i;
   while s[j]<>' ' do dec(j);
   result:=StrToFloat(Copy(s,j+1,i-j));
   while s[j]=' ' do dec(j);
   i:=j;
end;


PROCEDURE ReadLine(var v:TVektor);
var s:string; i:integer; list:TStrings; line:integer; 
begin
   s:=Trim(list[line]);
   i:=Length(s);
   v.z:=ReadNumber(s,i);
   v.y:=ReadNumber(s,i);
   v.x:=ReadNumber(s,i);
   inc(line);
end;


PROCEDURE ReadRecord;
const recline='vertex';
var i:integer; data:TDreieck;
begin
   ReadLine(data.n);
   for i:=1 to 3 do begin
      FindLine(recline,true);
      ReadLine(data.p[i]);
   end;
   SetLength(Dreiecke,Length(Dreiecke)+1);
   Dreiecke[High(dreiecke)]:=data;
end;


// var f:TextFile; i,j:integer; // nur zur Kontrolle benutzt

PROCEDURE CopyDreiecke(tofile:boolean);
var list:TStrings;

FUNCTION ToStr(v:real):String;
begin
   result:=FloatToStrF(v,ffExponent,7,3)+' ';
   if result[1]<>'-' then result:=' '+result;
end;

PROCEDURE AddVector(const v:TVektor);
type TxVector=Array[0..2] of real;

var s:string; i:integer; list:TStrings;
begin
   for i:=0 to High(TxVector) do s:=s+ToStr(TxVector(v)[i]);
   list.Add(s);
end;

var i,j:integer;
begin
   list:=TStringList.Create;
   try
      try
         if Length(Dreiecke)=0 then
            raise Exception.Create('Dreiecke ist leer.');
         for i:=0 to High(Dreiecke) do
            with Dreiecke[i] do begin
               AddVector(n);
               for j:=Low(p) to High(p) do AddVector(p[j]);
               list.Add('');
            end;
         if tofile then list.SaveToFile(ExtractFilePath(ParamStr(0))+'Log.txt');
           //else Clipboard.AsText:=List.Text;
         ShowMessage('fertig.');
      except
         On E:Exception do ShowMessage(E.Message);
      end;
   finally
      list.free;
   end;
end;



procedure TForm1.Button3Click(Sender: TObject);
begin
CopyDreiecke(true);
end;

procedure TForm1.Button2Click(Sender: TObject);
const
   recstart='facet normal';
   recline='vertex';
var list:TStrings; line:integer; data:TDreieck;
begin
   Dreiecke:=nil;
   list:=TStringList.Create;
   try
      try
         //list.text:=Clipboard.AsText;
         List.LoadFromFile(OpenDialog1.FileName);         
         line:=0;
         while FindLine(recstart,false) do ReadRecord;
      except
         On E:Exception do begin
            ShowMessage(E.Message);
            Dreiecke:=nil;
         end;
      end;
   finally
      list.free;
   end;
end;

end.