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The purpose of these parameters is to provide compatibility with the speaking capability of the IVEO viewer .

If the output SVG file is opened in the IVEO viewer , the title for the svg element is spoken when the user opens the file.

The titles for the individual shapes are spoken by the IVEO viewer when the user touches a corresponding shape on the touchpad or clicks on thatshape on the screen.

If the SVG file won't be used with the IVEO viewer , just leave the title strings unchanged. If the SVG file will be used with thethe IVEO viewer , you can modify those strings to cause the viewer to speak whatever titles you choose. (Don't remove the quotation marks if you modify the title string.)

You can read more about this capability under The SVG graphics library .

SVG code to create a canvas

If you were to delete all of the remaining code in Listing 25 down to but not including the statement that writes the output SVG file, the resulting SVG codewould be that shown in Listing 4 .

Listing 4 . SVG code to create a canvas.
<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"><svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="990" height="765"><title>Document Title</title>

The width and the height of the canvas

The first three lines of text in Listing 4 constitute housekeeping information that you needn't worry about. It will always be the same.

The fourth and fifth lines of text in Listing 4 define the width and height of the canvas.

As you can see, the width is set to a value of 990 and the height is set to a value of 765.

The last line of text in Listing 4 is the title element discussed earlier .

SVG units

SVG doesn't inherently deal with dimensions in inches (although it is possible to specify inches when you define the value for a size attribute.) . Instead, it deals with dimensions in something that I will refer to as "SVG units", and for reasons that I am unable to explain, there appear to be 90 SVG units per inch or 35.43SVG units per centimeter.

Thus, a width of 990 (as shown in Listing 4 ) corresponds to a width of 11 inches and a height of 765 corresponds to a height of 8.5 inches.

If you elect to write raw SVG code for you drawings, you will need to think in terms of SVG units instead of inches (or write all of the size attribute values something like "8.5in") . However, I designed my SVG graphics library so that you can think in terms of inches instead of SVG units without having toremember to specify the units for every size value.

Draw a rectangular border on the canvas

The Java code in Listing 5 draws a rectangular border on the canvas by creating an SVG element of type rect (for rectangle) .

Listing 5 . Draw a rectangular border on the canvas.
//Draw a rectangular border on the canvas. Element border = SvgLib21.makeRect(svg,ns, "rectangle",//title0.015,/lower-left x-coordinate in inches 0.015,//lower-left y-coordinate in inches10.97,//width in inches 8.47 //height in inches);

Questions & Answers

What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Maciej
characteristics of micro business
Abigail
for teaching engĺish at school how nano technology help us
Anassong
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
NANO
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
Virgil
is Bucky paper clear?
CYNTHIA
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
NANO
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Harper
Do you know which machine is used to that process?
s.
how to fabricate graphene ink ?
SUYASH Reply
for screen printed electrodes ?
SUYASH
What is lattice structure?
s. Reply
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
Sanket Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
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Source:  OpenStax, Accessible physics concepts for blind students. OpenStax CNX. Oct 02, 2015 Download for free at https://legacy.cnx.org/content/col11294/1.36
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