FULL SEQUENCE
Starting the program
Under Windows click on anyflo_no_gra.exe
The program runs and prints some.
The interpreter is ready and waiting for a command.
Firsts steps
Type:
help;
The list of commands is displayed.
Type:
help cos;
Prints the command description cos.
Type:
$help(0)cos;
Prints the content of file de cos.0.htm
Type:
$help(1)vol;
Prints the content of file vol.1.htm
Another method is to click on the file
AIDE_ANYFLO.htm (help on the machine), or
AIDE_ANYFLO_WEB.htm (online help: requires an internet connexion),
which give access to hypertext help.
Type:
demo for;
Command for demo is launched.
Type:
bye;
Message "SEE YOU SOON!..." appears and the program is stopped.
INTERACTIVE CALCULATIONS
Calculations
Variables
Arrays
Indices
pointers
Calculations
Type:
1+2*3;
Nothing happens.
Type:
print(1+2*3);
The result 7 appears.
Type:
$(1+2*3);
The result 7 appears: $ stands for print.
Type:
$1+2*3;
The result 7 appears: you can forget parentheses if there is no ambiguity.
Variables
Type:
x=1+2*3;
Nothing happens.
Type:
$x;
The result 7 appears: the variable x is initialized to the value 7.
Type:
x=1,2,3,4,5;$x;
The result (1.0,2.0,3.0,4.0,5.0) appears:
A variable can also be an array.
Type:
x=[1,5];$x;
The result (1.0,2.0,3.0,4.0,5.0) appears:
A series of consecutive values ??can be defined by its boundaries.
Exercises:
1) x=[5,1];$x;
2) x=[10,100,10];$x;
Type:
x="toto";$x;
The result toto appears:
A variable can also be a string.
3) Type:
x=[1,5],"ABCD",-1;
Then
$x;
The result (1.2,2.0,3.0,4.0,5.0)(ABCD)(-1.0) appears:
a variable can be hybrid.
Type:
x=1;y=2;z=3;$x+y*z;
The result 7 appears.
Arrays
Taper:
x=[1,5];y=[6,10];$x+y;
The result (7.0,9.0,11.0,13.0,15.0) appears:
The number calculations are extended toarrays.
Taper:
$x,y;
The result (1.0,2.0,3.0,4.0,5.0,6.0,7.0,8.0,9.0,10.0)appears:
The comma is the concatenation operator.
Exercises:
1) x=[1,5];$1+2*x;
2) x=[1,5];y=[6,12];$x+2*y;
3) $x,1+2*y;
Indices
Taper:
x=[1,12];$x[0];
The result 1 appears: x[i] returns the element of rank i of the variable x.
Note:
Indices start at 0, and x [3] returns 4 and [12] causes an error (12: ILLEGAL INDEX).
Exercises:
1) x=[1,12];$x[0,4];
2) $x[4,0];
3) x[0,4]=[14,10];$x;
4) x=[1,12];x[0,5]=x[11,6];$x;
Type:
edit x;
The variable x is printed as a list of 3D points:
0: 1.0 2.0 3.0
1: 4.0 5.0 6.0
2: 7.0 8.0 9.0
3: 10.0 11.0 12.0
Type:
$x{0};
The result(1.0,2.0,3.0) appears:
x{i}; returns the components from the point of rank i of the variable x.
Note:
Indices start at 0, and x {2} returns (7.0,8.0,9.0) and {4} causes an error (4: ILLEGAL INDEX).
Exercises:
1) x=[1,12];$x{0,3};
2) $x{3,0};
3) x{0,2}=x{3,2};$x;
4) x=[1,12];x{0,4}=x{4,0};$x;
pointers
Type:
t=[0,5];p=@t;$p;
p is the address of the array t.
Type:
$p[2]; produces 2 which is the number 2 of t.
Type:
edit(p[0,5]); produces:
0.0 1.0 2.0
3.0 4.0 5.0
A LITTLE grahique 2D
Clixk on anyflo_video.exe, window size graphic video opens, it can hide the text window
to retrieve it simultaneously press the keys Alt and Tab then click on anyflo.exe.
Type:
screen;
The blue screen is cleared (default background color).
Taper:
screen 1,.7,.5;
The screen is cleared in orange: The colors are defined by their components (red, green, blue) normalized between 0.0 and 1.0
Type:
screen;
The blue screen is cleared: the background color has not been changed.
Type:
back 1;screen;
The screen is cleared in red: the background color has been changed.
Type:
x=arc 100,0,2*PI,12;
x is the line of regular polygonal center the origin, radius 100, and a turn angle of 12 vertices.
edit x; prints the coordinates of the polygonal line.
screen;displ line(x);
Clears the screen and displays the polygonal line x.
Type:
segment(0,0,200,100)col(1,1,1);
A white segment joining the points (0,0) and (200,100) is displayed.
The center of the coordinates system of the screen is the center, the axis of x is taken to the right of the axis and is directed downwardly.
Type:
segment(0,0,200,-100)col(0,1,0)cut(3,3);
A green segment joining the points (0,0) et (200,-100) is displayed.
Type:
frame(-100,-100,100,100)col 0,1;
A green frame is displayed.
Type:
rectangle(0,0,50,50)col 0,1,1;
A cyan filled rectangle is displayed.
Exercises:
1) screen 0;rectangle(0,0,50,50)col(1);
2) screen 0,0,1;rectangle(50,50,-50,-50)col(1,1,1);
3) Taper:
demo pixel;
demo segment;
demo frame;
demo rectangle;
demo disk;
demo text;
A LITTLE grahique 3D
Click on anyflo_see.exe, a window of maximum size graphic opens,
and a window (image) to enter the text.
Type:
ini ini vol;
All flags are reset and all volumes destroyed.
Type:
ball(1);
A volume type ball is created by default (radius 100, 6 x sections, 3
y sections, 18 facets and 24 vertices). These parameters are displayed by the command:
edit vol(1)
Type:
screen;displ vol
The screen is cleared and the ball is displayed in wire.
Type:
ball(2)dim(200)secy(12);screen;displ vol(2);
A ball radius 200, 24 x sections, 12 y sections, 338 facets and 364 vertices, is
created then displayed.
Type:
col vol(2)=1;yes illum;screen;displ vol(2);
Volume 2 turns red and is displayed in full (flat mode).
Type:
illum vol(2)=2,1,.1,.1,0;screen;displ vol(2)
Volume 2 displayed in full (with Gouraud smoothing).