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Text File | 1993-11-03 | 2.5 KB | 129 lines | [TEXT/Imag] |
- macro 'Random Ovals';
- var
- PicWidth,PicHeight,hloc,vloc,width,height:real;
- begin
- SaveState;
- SetPalette('Spectrum');
- MakeNewWindow('Random Ovals');
- GetPicSize(PicWidth,PicHeight);
- repeat
- hloc:=width*random;
- vloc:=height*random;
- width:=(PicWidth-hloc)*random;
- height:=(PicHeight-vloc)*random;
- MakeOvalRoi(hloc,vloc,width,height);
- SetForeground(255*random);
- fill;
- until Button;
- KillRoi;
- RestoreState;
- end;
-
-
- macro 'Draw Ball';
- var
- width,height,n,i,color,diam,nSteps:integer;
- begin
- SaveState;
- nSteps:=64;
- SetPalette('Spectrum');
- SetBackground(255); {Black}
- MakeNewWindow('Ball');
- GetPicSize(Width,Height);
- if width>height
- then diam:=height
- else diam:=width;
- color:=1;
- MakeOvalRoi((width-diam)/2,(height-diam)/2,diam,diam);
- for i:=1 to nSteps do begin
- InsetRoi(round(diam/(3*nSteps)));
- SetForeground(color);
- fill;
- color:=color+round(256/nSteps);
- if color>254 then color:=254;
- end;
- KillRoi;
- RestoreState;
- end;
-
-
- macro 'Speckle Paint [S]';
- var
- x,y,ranx,rany,MaxSpeckSize,size,Spread:integer;
- begin
- RequiresVersion(1.48);
- SetCursor('Cross');
- Spread:=50;
- MaxSpeckSize:=5;
- KillRoi;
- repeat
- GetMouse(x,y);
- if button then begin
- ranx:=x+Spread*(Random-0.5);
- rany:=y+Spread*(Random-0.5);
- size:=(MaxSpeckSize-2)*random+2;
- MakeOvalRoi(ranx-size,rany-size,size*2,size*2);
- SetForeground(Random*254+1);
- fill;
- end;
- until (x<0) or (y<0);
- KillRoi;
- end;
-
-
- macro 'Random Color Boxes';
- var
- n,PicWidth,PicHeight,hloc,vloc,size:integer;
- begin
- SaveState;
- n:=24;
- GetPicSize(PicWidth,PicHeight);
- if PicWidth=0 then begin
- PutMessage
- ('This macro needs an opened image, preferably in color, to operate on.');
- Exit;
- end;
- size:=round(PicWidth/n);
- repeat
- hloc:=((PicWidth*random) div size)*size;
- vloc:=((PicHeight*random) div size)*size;
- MakeRoi(hloc,vloc,size,size);
- SetForeground(255*random);
- fill;
- {Invert;}
- until Button;
- KillRoi;
- RestoreState;
- end;
-
-
- macro 'Random LUT Colors [C]';
- var
- i,colors,entries,first,last,r,g,b:integer;
- begin
- RequiresVersion(1.48);
- SetCursor('Watch');
- colors:=25;
- entries:=256/colors;
- if entries>256 then entries:=256;
- repeat
- first:=random*255;
- last:=first+entries-1;
- if last>255 then last:=255;
- r:=random*255;
- g:=random*255;
- b:=random*255;
- for i:=first to last do begin
- RedLUT[i]:=r;
- GreenLUT[i]:=g;
- BlueLUT[i]:=b;
- end;
- UpdateLUT;
- until button;
- end;
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