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Stellate/!Stellate/Tutorial1
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
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| Tape/disk: | Home » Archimedes archive » Acorn User » AU 1998-09.adf » Features |
| Filename: | Stellate/!Stellate/Tutorial1 |
| Read OK: | ✔ |
| File size: | 1D20 bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
Tutorial for !Stellate
There are three Tutorials:
1. Instructions for beginners - shows how to make the 3D view plot from the
stored command data.
2. Instructions for making your own selections from the stellation diagram
to make your own version of a polyhedron from the stored instructions;
the second section shows how to select star faces and selecting faces
from more than one component
3. Instructions for making a new polyhedron by selecting your face types to
make stellation diagram(s) and a new polyhedron
If you want to understand the details of how !Stellate stores polyhedra and
their stellations look at the file �Tutorials.Intro�.
----------------------------------------------------------------------
Tutorial (1) Plotting a stored polyhedron,
viewing it in several ways and saving the view as a Draw file.
You might find it helpful to turn on the Acorn interactive help before
following these instructions.
1. Double click on the icon in the filer window to load the !Stellate icon
on to the iconbar.
2. Click MENU over the icon to see the menu and select the item �Name�.
This opens the �Stored solid� window with the number of stored polyhedra
in its title bar, and a list of icons labelled with the names of polyhedra.
3. Click on the name of one you know, such as the �cube�.
4. This opens the �Parameters� window which has information about the
selected polyhedron, which is explained in Tutorial 3. For now, click on the
lower right icon �Plot Solid� if you just want to see the 3D view at once
and skip to section 6. Click on �Auto-Select� to see the intermediate stage.
5. This opens another window containing a stellation diagram with a
central cyan square (see page 6 of the paper manual for an explanation of
what this is, or look in �Tutorials.Pictures.Page6�). The �control
panel� to the left is loosely connected to this window, it has several
buttons and icons, click on the �Plot Solid� icon almost at the bottom.
6. Another window appears showing a 3D view of your chosen polyhedron
drawn in a single shaded colour.
Click MENU over the icon on the iconbar and choose 'Description' to open
the �Description� window listing:
the name of the polyhedron in the 3D window
the count of vertices, faces and edges
the name of its dual
the Wenninger number (if any).
The default 'Choices' file does not show this window; it appears with the 3D
window until you deselect 'Description' from the menu.
Try using the cursor keys to rotate the 3D view of your polyhedron,
(!Help tells you which keys to use or you can turn on the Acorn interactive
help). Also try clicking SELECT in this window. Click on a vertex to see its
number listed in a small window to the lower right with title �Face Data�.
Click over a face for information about that face.
There are 4 lines in the window giving the number of the:
component ( see list in the Draw file Pictures.Component )
plane ( the plane in the face of the original polyhedron )
face ( the face number of the face in the stellation diagram )
Sym/rot ( the number of the face made by rotational symmetry )
A cube is made from one face, the central square in the stellation diagram.
To make the cube, this face has been duplicated and rotated as defined by
the angles in the data file �Components�. Rotate the cube until you have
seen all the 6 planes. The meaning of the lines in the stellation diagram
should become clearer when you draw a polyhedron with more kinds of polygons
for faces. (Later you may want to look at the Draw files TryThese.Answer6a,b,c
which show stellation diagrams with faces colour coded to show which faces
they make in the 3D stellation to the right. )
7. Now explore what you can do by clicking MENU over this window.
Display
- allows you to change the way you look at the 3D solid
Since the cube is a simple solid you may find it hard to understand the
different display types.
Repeat steps 1 to 6 above but this time select the polyhedron shown on
page 7 of the manual, the Great Dodecahemidodecahedron (Wenninger #107) and
try looking at the different display types, some of which are in the
Draw file: �Tutorials.Pictures.Page7�.
You use the red/green glasses to see the polyhedron in stereo, it looks
better when continuously rotated, just hold down a rotation key, or hold
down the CTRL key and press a rotation key for continuous rotations until
you click the mouse in that window.
Look at the �Plane� display, all the faces which are in the same plane have
the same colour.
In the �#sides� display, polygons with the same number of sides are the same
colour.
The �components� display shows faces which come from the same component in
the same colour. This polyhedron is made from 2 components; click SELECT
over the two colours to see which faces they are. Then move the �3D view�
window away from the stellation diagrams underneath; you see which faces come
from each of the 2 stellation diagrams. Notice that the 2nd diagram has
faces in cyan and dark blue showing whether the front or back of the face is
towards you. !Stellate draws only one side of a face; you have to tell it
which one to draw as seen from outside the polyhedron, the front or the back.
Try looking at the central �flower�, and clicking with SELECT on each of the
inside petals in turn, starting with the one at lower left, move to the next
one in an anti-clockwise direction and notice that the bottom line �Sym/rot�
changes. Only the first one is drawn in the stellation diagram, the others
are invented by !Stellate because these components are both dodecahedral
with 5 fold symmetry, so after your draw one, it knows to replicate that one
until there are 5 altogether.
If you want to see a polyhedron with 3 components follow steps 1 to 6 above
to look at the Great Cubicuboctahedron (Wenninger #77) which has:
component 1 red triangles, 2 green pentagons, 3 yellow 8 pointed stars.
Rotations
- allows you to change the angle of rotations for one press of a key
Save
- brings up a �Save� menu, choose the top item �Draw� to save the
current view to a �Draw� file by dragging the icon to a filer window.
8. It is easier to see the relation between the stellation diagrams and the
faces they make if you look at each diagram in turn and rotate the 3D view
until you can see the faces corresponding to that diagram. The first
component usually has the bigger diagram, the others are shown below at half
size, you change the one shown bigger either by clicking on one of the
lower diagrams or on the button on the �control panel�. Change the scale by
using the keys < >, clicking on the up/down arrows in the control panel or
by entering a number in the icon. If you get hopelessly lost, click �reset�.
You should now be able to look at any of the stored polyhedra and save them
as Draw files.
9.How to know what there is to see.
You see an alphabetical list of polyhedron names when you select by �Name�.
A list in a different order is stored in �Tutorials.CrossRef�, which has
the polyhedra under several headings such as compounds, non-convex, those
with 5 pointed stars as faces etc. The sprite file
�Tutorials.Pictures.AllPoly� has diagrams of the stored polyhedra, and
is printed as a single loose A4 page in your paper manual.
Happy exploring|
00000000 20 20 20 20 20 20 20 20 20 20 20 20 54 75 74 6f | Tuto| 00000010 72 69 61 6c 20 66 6f 72 20 21 53 74 65 6c 6c 61 |rial for !Stella| 00000020 74 65 0a 0a 0a 54 68 65 72 65 20 61 72 65 20 74 |te...There are t| 00000030 68 72 65 65 20 54 75 74 6f 72 69 61 6c 73 3a 0a |hree Tutorials:.| 00000040 0a 20 20 31 2e 20 49 6e 73 74 72 75 63 74 69 6f |. 1. Instructio| 00000050 6e 73 20 66 6f 72 20 62 65 67 69 6e 6e 65 72 73 |ns for beginners| 00000060 20 2d 20 73 68 6f 77 73 20 68 6f 77 20 74 6f 20 | - shows how to | 00000070 6d 61 6b 65 20 74 68 65 20 33 44 20 76 69 65 77 |make the 3D view| 00000080 20 70 6c 6f 74 20 66 72 6f 6d 20 74 68 65 0a 20 | plot from the. | 00000090 20 20 20 20 73 74 6f 72 65 64 20 63 6f 6d 6d 61 | stored comma| 000000a0 6e 64 20 64 61 74 61 2e 0a 0a 20 20 32 2e 20 49 |nd data... 2. I| 000000b0 6e 73 74 72 75 63 74 69 6f 6e 73 20 66 6f 72 20 |nstructions for | 000000c0 6d 61 6b 69 6e 67 20 79 6f 75 72 20 6f 77 6e 20 |making your own | 000000d0 73 65 6c 65 63 74 69 6f 6e 73 20 66 72 6f 6d 20 |selections from | 000000e0 74 68 65 20 73 74 65 6c 6c 61 74 69 6f 6e 20 64 |the stellation d| 000000f0 69 61 67 72 61 6d 0a 20 20 20 20 20 74 6f 20 6d |iagram. to m| 00000100 61 6b 65 20 79 6f 75 72 20 6f 77 6e 20 76 65 72 |ake your own ver| 00000110 73 69 6f 6e 20 6f 66 20 61 20 70 6f 6c 79 68 65 |sion of a polyhe| 00000120 64 72 6f 6e 20 66 72 6f 6d 20 74 68 65 20 73 74 |dron from the st| 00000130 6f 72 65 64 20 69 6e 73 74 72 75 63 74 69 6f 6e |ored instruction| 00000140 73 3b 0a 20 20 20 20 20 74 68 65 20 73 65 63 6f |s;. the seco| 00000150 6e 64 20 73 65 63 74 69 6f 6e 20 73 68 6f 77 73 |nd section shows| 00000160 20 68 6f 77 20 74 6f 20 73 65 6c 65 63 74 20 73 | how to select s| 00000170 74 61 72 20 66 61 63 65 73 20 61 6e 64 20 73 65 |tar faces and se| 00000180 6c 65 63 74 69 6e 67 20 66 61 63 65 73 0a 20 20 |lecting faces. | 00000190 20 20 20 66 72 6f 6d 20 6d 6f 72 65 20 74 68 61 | from more tha| 000001a0 6e 20 6f 6e 65 20 63 6f 6d 70 6f 6e 65 6e 74 0a |n one component.| 000001b0 20 0a 20 20 33 2e 20 49 6e 73 74 72 75 63 74 69 | . 3. Instructi| 000001c0 6f 6e 73 20 66 6f 72 20 6d 61 6b 69 6e 67 20 61 |ons for making a| 000001d0 20 6e 65 77 20 70 6f 6c 79 68 65 64 72 6f 6e 20 | new polyhedron | 000001e0 62 79 20 73 65 6c 65 63 74 69 6e 67 20 79 6f 75 |by selecting you| 000001f0 72 20 66 61 63 65 20 74 79 70 65 73 20 74 6f 0a |r face types to.| 00000200 20 20 20 20 20 6d 61 6b 65 20 73 74 65 6c 6c 61 | make stella| 00000210 74 69 6f 6e 20 64 69 61 67 72 61 6d 28 73 29 20 |tion diagram(s) | 00000220 61 6e 64 20 61 20 6e 65 77 20 70 6f 6c 79 68 65 |and a new polyhe| 00000230 64 72 6f 6e 20 0a 0a 49 66 20 79 6f 75 20 77 61 |dron ..If you wa| 00000240 6e 74 20 74 6f 20 75 6e 64 65 72 73 74 61 6e 64 |nt to understand| 00000250 20 74 68 65 20 64 65 74 61 69 6c 73 20 6f 66 20 | the details of | 00000260 68 6f 77 20 21 53 74 65 6c 6c 61 74 65 20 73 74 |how !Stellate st| 00000270 6f 72 65 73 20 70 6f 6c 79 68 65 64 72 61 20 61 |ores polyhedra a| 00000280 6e 64 0a 74 68 65 69 72 20 73 74 65 6c 6c 61 74 |nd.their stellat| 00000290 69 6f 6e 73 20 6c 6f 6f 6b 20 61 74 20 74 68 65 |ions look at the| 000002a0 20 66 69 6c 65 20 90 54 75 74 6f 72 69 61 6c 73 | file .Tutorials| 000002b0 2e 49 6e 74 72 6f 91 2e 20 20 20 0a 0a 2d 2d 2d |.Intro.. ..---| 000002c0 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |----------------| * 00000300 2d 2d 2d 0a 0a 20 20 20 20 20 20 20 20 20 20 20 |---.. | 00000310 20 54 75 74 6f 72 69 61 6c 20 28 31 29 20 50 6c | Tutorial (1) Pl| 00000320 6f 74 74 69 6e 67 20 61 20 73 74 6f 72 65 64 20 |otting a stored | 00000330 70 6f 6c 79 68 65 64 72 6f 6e 2c 0a 20 20 20 20 |polyhedron,. | 00000340 20 20 76 69 65 77 69 6e 67 20 69 74 20 69 6e 20 | viewing it in | 00000350 73 65 76 65 72 61 6c 20 77 61 79 73 20 61 6e 64 |several ways and| 00000360 20 73 61 76 69 6e 67 20 74 68 65 20 76 69 65 77 | saving the view| 00000370 20 61 73 20 61 20 44 72 61 77 20 66 69 6c 65 2e | as a Draw file.| 00000380 0a 0a 59 6f 75 20 6d 69 67 68 74 20 66 69 6e 64 |..You might find| 00000390 20 69 74 20 68 65 6c 70 66 75 6c 20 74 6f 20 74 | it helpful to t| 000003a0 75 72 6e 20 6f 6e 20 74 68 65 20 41 63 6f 72 6e |urn on the Acorn| 000003b0 20 69 6e 74 65 72 61 63 74 69 76 65 20 68 65 6c | interactive hel| 000003c0 70 20 62 65 66 6f 72 65 0a 66 6f 6c 6c 6f 77 69 |p before.followi| 000003d0 6e 67 20 74 68 65 73 65 20 69 6e 73 74 72 75 63 |ng these instruc| 000003e0 74 69 6f 6e 73 2e 0a 0a 20 20 31 2e 20 44 6f 75 |tions... 1. Dou| 000003f0 62 6c 65 20 63 6c 69 63 6b 20 6f 6e 20 74 68 65 |ble click on the| 00000400 20 69 63 6f 6e 20 69 6e 20 74 68 65 20 66 69 6c | icon in the fil| 00000410 65 72 20 77 69 6e 64 6f 77 20 74 6f 20 6c 6f 61 |er window to loa| 00000420 64 20 74 68 65 20 21 53 74 65 6c 6c 61 74 65 20 |d the !Stellate | 00000430 69 63 6f 6e 0a 20 20 20 20 6f 6e 20 74 6f 20 74 |icon. on to t| 00000440 68 65 20 69 63 6f 6e 62 61 72 2e 0a 0a 20 20 32 |he iconbar... 2| 00000450 2e 20 43 6c 69 63 6b 20 4d 45 4e 55 20 6f 76 65 |. Click MENU ove| 00000460 72 20 74 68 65 20 69 63 6f 6e 20 74 6f 20 73 65 |r the icon to se| 00000470 65 20 74 68 65 20 6d 65 6e 75 20 61 6e 64 20 73 |e the menu and s| 00000480 65 6c 65 63 74 20 74 68 65 20 69 74 65 6d 20 90 |elect the item .| 00000490 4e 61 6d 65 91 2e 0a 20 20 20 20 54 68 69 73 20 |Name... 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Click | 00000540 6f 6e 20 74 68 65 20 6e 61 6d 65 20 6f 66 20 6f |on the name of o| 00000550 6e 65 20 79 6f 75 20 6b 6e 6f 77 2c 20 73 75 63 |ne you know, suc| 00000560 68 20 61 73 20 74 68 65 20 90 63 75 62 65 91 2e |h as the .cube..| 00000570 0a 0a 20 20 34 2e 20 54 68 69 73 20 6f 70 65 6e |.. 4. This open| 00000580 73 20 74 68 65 20 90 50 61 72 61 6d 65 74 65 72 |s the .Parameter| 00000590 73 91 20 77 69 6e 64 6f 77 20 77 68 69 63 68 20 |s. window which | 000005a0 68 61 73 20 69 6e 66 6f 72 6d 61 74 69 6f 6e 20 |has information | 000005b0 61 62 6f 75 74 20 74 68 65 20 0a 73 65 6c 65 63 |about the .selec| 000005c0 74 65 64 20 70 6f 6c 79 68 65 64 72 6f 6e 2c 20 |ted polyhedron, | 000005d0 77 68 69 63 68 20 69 73 20 65 78 70 6c 61 69 6e |which is explain| 000005e0 65 64 20 69 6e 20 54 75 74 6f 72 69 61 6c 20 33 |ed in Tutorial 3| 000005f0 2e 20 46 6f 72 20 6e 6f 77 2c 20 63 6c 69 63 6b |. For now, click| 00000600 20 6f 6e 20 74 68 65 0a 6c 6f 77 65 72 20 72 69 | on the.lower ri| 00000610 67 68 74 20 69 63 6f 6e 20 90 50 6c 6f 74 20 53 |ght icon .Plot S| 00000620 6f 6c 69 64 91 20 69 66 20 79 6f 75 20 6a 75 73 |olid. if you jus| 00000630 74 20 77 61 6e 74 20 74 6f 20 73 65 65 20 74 68 |t want to see th| 00000640 65 20 33 44 20 76 69 65 77 20 61 74 20 6f 6e 63 |e 3D view at onc| 00000650 65 0a 61 6e 64 20 73 6b 69 70 20 74 6f 20 73 65 |e.and skip to se| 00000660 63 74 69 6f 6e 20 36 2e 20 43 6c 69 63 6b 20 6f |ction 6. Click o| 00000670 6e 20 90 41 75 74 6f 2d 53 65 6c 65 63 74 91 20 |n .Auto-Select. | 00000680 74 6f 20 73 65 65 20 74 68 65 20 69 6e 74 65 72 |to see the inter| 00000690 6d 65 64 69 61 74 65 20 73 74 61 67 65 2e 0a 0a |mediate stage...| 000006a0 20 20 35 2e 20 54 68 69 73 20 6f 70 65 6e 73 20 | 5. This opens | 000006b0 61 6e 6f 74 68 65 72 20 77 69 6e 64 6f 77 20 63 |another window c| 000006c0 6f 6e 74 61 69 6e 69 6e 67 20 61 20 73 74 65 6c |ontaining a stel| 000006d0 6c 61 74 69 6f 6e 20 64 69 61 67 72 61 6d 20 77 |lation diagram w| 000006e0 69 74 68 20 61 0a 63 65 6e 74 72 61 6c 20 63 79 |ith a.central cy| 000006f0 61 6e 20 73 71 75 61 72 65 20 28 73 65 65 20 70 |an square (see p| 00000700 61 67 65 20 36 20 6f 66 20 74 68 65 20 70 61 70 |age 6 of the pap| 00000710 65 72 20 6d 61 6e 75 61 6c 20 66 6f 72 20 61 6e |er manual for an| 00000720 20 65 78 70 6c 61 6e 61 74 69 6f 6e 20 6f 66 0a | explanation of.| 00000730 77 68 61 74 20 74 68 69 73 20 69 73 2c 20 6f 72 |what this is, or| 00000740 20 6c 6f 6f 6b 20 69 6e 20 20 90 54 75 74 6f 72 | look in .Tutor| 00000750 69 61 6c 73 2e 50 69 63 74 75 72 65 73 2e 50 61 |ials.Pictures.Pa| 00000760 67 65 36 91 29 2e 20 54 68 65 20 90 63 6f 6e 74 |ge6.). The .cont| 00000770 72 6f 6c 0a 70 61 6e 65 6c 91 20 74 6f 20 74 68 |rol.panel. to th| 00000780 65 20 6c 65 66 74 20 69 73 20 6c 6f 6f 73 65 6c |e left is loosel| 00000790 79 20 63 6f 6e 6e 65 63 74 65 64 20 74 6f 20 74 |y connected to t| 000007a0 68 69 73 20 77 69 6e 64 6f 77 2c 20 69 74 20 68 |his window, it h| 000007b0 61 73 20 73 65 76 65 72 61 6c 0a 62 75 74 74 6f |as several.butto| 000007c0 6e 73 20 61 6e 64 20 69 63 6f 6e 73 2c 20 63 6c |ns and icons, cl| 000007d0 69 63 6b 20 6f 6e 20 74 68 65 20 90 50 6c 6f 74 |ick on the .Plot| 000007e0 20 53 6f 6c 69 64 91 20 69 63 6f 6e 20 61 6c 6d | Solid. icon alm| 000007f0 6f 73 74 20 61 74 20 74 68 65 20 62 6f 74 74 6f |ost at the botto| 00000800 6d 2e 0a 0a 20 20 36 2e 20 41 6e 6f 74 68 65 72 |m... 6. Another| 00000810 20 77 69 6e 64 6f 77 20 61 70 70 65 61 72 73 20 | window appears | 00000820 73 68 6f 77 69 6e 67 20 61 20 33 44 20 76 69 65 |showing a 3D vie| 00000830 77 20 6f 66 20 79 6f 75 72 20 63 68 6f 73 65 6e |w of your chosen| 00000840 20 70 6f 6c 79 68 65 64 72 6f 6e 20 0a 64 72 61 | polyhedron .dra| 00000850 77 6e 20 69 6e 20 61 20 73 69 6e 67 6c 65 20 73 |wn in a single s| 00000860 68 61 64 65 64 20 63 6f 6c 6f 75 72 2e 20 0a 0a |haded colour. ..| 00000870 43 6c 69 63 6b 20 4d 45 4e 55 20 6f 76 65 72 20 |Click MENU over | 00000880 74 68 65 20 69 63 6f 6e 20 6f 6e 20 74 68 65 20 |the icon on the | 00000890 69 63 6f 6e 62 61 72 20 61 6e 64 20 63 68 6f 6f |iconbar and choo| 000008a0 73 65 20 27 44 65 73 63 72 69 70 74 69 6f 6e 27 |se 'Description'| 000008b0 20 74 6f 20 6f 70 65 6e 0a 74 68 65 20 90 44 65 | to open.the .De| 000008c0 73 63 72 69 70 74 69 6f 6e 91 20 77 69 6e 64 6f |scription. windo| 000008d0 77 20 6c 69 73 74 69 6e 67 3a 0a 20 20 20 20 20 |w listing:. | 000008e0 74 68 65 20 6e 61 6d 65 20 6f 66 20 74 68 65 20 |the name of the | 000008f0 70 6f 6c 79 68 65 64 72 6f 6e 20 69 6e 20 74 68 |polyhedron in th| 00000900 65 20 33 44 20 77 69 6e 64 6f 77 0a 20 20 20 20 |e 3D window. | 00000910 20 74 68 65 20 63 6f 75 6e 74 20 6f 66 20 76 65 | the count of ve| 00000920 72 74 69 63 65 73 2c 20 66 61 63 65 73 20 61 6e |rtices, faces an| 00000930 64 20 65 64 67 65 73 0a 20 20 20 20 20 74 68 65 |d edges. the| 00000940 20 6e 61 6d 65 20 6f 66 20 69 74 73 20 64 75 61 | name of its dua| 00000950 6c 0a 20 20 20 20 20 74 68 65 20 57 65 6e 6e 69 |l. the Wenni| 00000960 6e 67 65 72 20 6e 75 6d 62 65 72 20 28 69 66 20 |nger number (if | 00000970 61 6e 79 29 2e 0a 0a 54 68 65 20 64 65 66 61 75 |any)...The defau| 00000980 6c 74 20 27 43 68 6f 69 63 65 73 27 20 66 69 6c |lt 'Choices' fil| 00000990 65 20 64 6f 65 73 20 6e 6f 74 20 73 68 6f 77 20 |e does not show | 000009a0 74 68 69 73 20 77 69 6e 64 6f 77 3b 20 69 74 20 |this window; it | 000009b0 61 70 70 65 61 72 73 20 77 69 74 68 20 74 68 65 |appears with the| 000009c0 20 33 44 0a 77 69 6e 64 6f 77 20 75 6e 74 69 6c | 3D.window until| 000009d0 20 79 6f 75 20 64 65 73 65 6c 65 63 74 20 27 44 | you deselect 'D| 000009e0 65 73 63 72 69 70 74 69 6f 6e 27 20 66 72 6f 6d |escription' from| 000009f0 20 74 68 65 20 6d 65 6e 75 2e 0a 20 0a 20 20 20 | the menu.. . | 00000a00 54 72 79 20 75 73 69 6e 67 20 74 68 65 20 63 75 |Try using the cu| 00000a10 72 73 6f 72 20 6b 65 79 73 20 74 6f 20 72 6f 74 |rsor keys to rot| 00000a20 61 74 65 20 74 68 65 20 33 44 20 76 69 65 77 20 |ate the 3D view | 00000a30 6f 66 20 79 6f 75 72 20 70 6f 6c 79 68 65 64 72 |of your polyhedr| 00000a40 6f 6e 2c 0a 28 21 48 65 6c 70 20 74 65 6c 6c 73 |on,.(!Help tells| 00000a50 20 79 6f 75 20 77 68 69 63 68 20 6b 65 79 73 20 | you which keys | 00000a60 74 6f 20 75 73 65 20 6f 72 20 79 6f 75 20 63 61 |to use or you ca| 00000a70 6e 20 74 75 72 6e 20 6f 6e 20 74 68 65 20 41 63 |n turn on the Ac| 00000a80 6f 72 6e 20 69 6e 74 65 72 61 63 74 69 76 65 0a |orn interactive.| 00000a90 68 65 6c 70 29 2e 20 41 6c 73 6f 20 74 72 79 20 |help). 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