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- (******************************************************************************
- * hdr3d *
- ******************************************************************************)
- unit hdr3d;
-
- {this is the 3D program header of globals, types etc..}
-
- interface
-
- const
- MaxPoints = 20;
- MaxLines = 50;
- maxObjects = 9; {size of object table}
- maxMacros = 5; {size of macro table}
- maxNest = 10; {size of loop table of interpreter}
- UNTITLED = 'UNTITLED';
- UNTITLEDC = 'UNTITLED.3DS';
- UNTITLEDS = 'UNTITLED.3D2';
-
- const ScreenWidth = 1000;
- HalfWidth = screenWidth / 2;
-
- radFactor = 180 / 3.1415926535897932385;
-
- type
- Line3d = record
- FromP, ToP : integer;
- end;
- screenPoints = record
- sX,sY : integer;
- end;
- axisType = (x,y,z);
-
- type
- point3d = record
- x, y, z : real;
- end;
-
- const
- zeroPoint : point3d = (x:0.0; y:0.0; z:0.0);
- xAxis : integer = 45;
- yAxis : integer = 45;
-
- var
- cosine_x,cosine_y,sine_x,sine_y : Real;
- currentPath : string[32];
- const
- currentAxis : axisType = x;
-
-
- Procedure CalcAxisDeg;
- procedure setDefaultSuffix(var Fname : string; suffix : string);
-
- implementation
-
- (******************************************************************************
- * CalcAxisDeg *
- ******************************************************************************)
- Procedure CalcAxisDeg;
-
- {calculate sines & cosines of axis, xAxis + yAxis = 90!}
-
- Begin
- Cosine_X := cos(Xaxis/RadFactor);
- Cosine_Y := cos(Yaxis/RadFactor);
- Sine_X := sin(Xaxis/RadFactor);
- Sine_Y := sin(Yaxis/RadFactor);
- End;
-
- (*******************************************************************************
- * setDefaultSuffix *
- * Set the suffix if Fname to .suffix, if it does not have a suffix *
- *******************************************************************************)
-
- procedure setDefaultSuffix;
- var
- i : integer;
- begin
- i := length(Fname);
- while (i > 0) and (Fname[i] <> '.') do
- dec(i);
- if (i = 0) then
- Fname := Fname + '.' + suffix;
- end;
-
- begin
- getdir(0, currentPath);
- calcAxisDeg;
- end.
-