Flowcharts Using Visio
Definitions
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An Algorithm is just a detailed
sequence of simple steps that are
needed to solve a problem.
A Flowchart is a graphical
representation of an algorithm.
Symbols
Of the many
Symbols
available, these
7 Basic Symbols
will be used
most:
Example 1
Example 2
Example 3
Using Visio: start up
Drag shapes to the drawing pane
Drag to place
Double-click to add text
Resize using bounding-box
Connect shapes with connectors
Connect shapes with connectors
Click the lower blue connection
point on the shape. A red box
appears around the connection
point to show that the
connector is “glued” to the
shape.
Once glued to a shape, the
connector moves with the shape
the drawing grid
Grid lines crisscross
each drawing page
like those on
traditional graph
paper. A grid helps
you position
shapes visually on
a drawing page,
and you can snap
shapes to the grid.
The grid does not
print.
Working with the grid
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Show or hide the grid: On the View
menu, click Grid.
Set grid spacing: On the Tools menu,
click Ruler & Grid.
Snapping: By default, shapes snap to
both ruler subdivisions and grid lines. On
the Tools menu, click Snap & Glue.
Glue:Glue is what keeps connectors
attached to shapes.
Run Length Encoding Pseudocode
initialize RunColor to 1
initialize RunLength to White
for each pixel in the image
if(pixel is the same as the RunColor)
increment RunLength
else
write RunLength
change RunColor to pixel's intensity
initialize RunLength to 1
write last RunLength
Run Length
Encoding Flowchart
Pseudocode
initialize RunColor to 1
initialize RunLength to White
for each pixel in the image
if(pixel is the same as the RunColor)
increment RunLength
else
write RunLength
change RunColor to pixel's intensity
initialize RunLength to 1
write last RunLength
LZW compression algorithm
Pseudocode
set w = “”
loop
read a character k
if wk exists in the dictionary
w = wk
else
output the code for w
add wk to the dictionary
w=k
endloop
LZW compression
algorithm Flowchart
Pseudocode
set w = “”
loop
read a character k
if wk exists in the dictionary
w = wk
else
output the code for w
add wk to the dictionary
w=k
endloop
Other good stuff
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Group/ungroup:

select multiple shapes holding the shift
key down
Group shapes:

Selected shapes move as a unit
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good stuff
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Many automatic layout
features
Export options under save as:
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.vsd
.html
.gif, .jpg, .png
.wmf
Hyperlinks
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If your flow chart gets too big, you can extend it on several
pages.
1. Create the page or document you want to link to.
2. Select the shape you want to link from.
3. In the Insert menu, select Hyperlink (or use the shortcut
Ctrl+K.)
4. You can have several links from the same shape.
5. To link to another page in the same flowchart document,
browse in the Sub-address box, and select the page.
6. To link to an external document, browse in the Address
box.
7. Click OK when you have added all the hyperlinks you
need.
Access the links by right-clicking the shape to select a link.
If you create an html document from the flowchart, you
will be able to click on the shape to access the link.