User's Manual

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navigation, type the first letter of the category of symbols you wish to type. For example, if you wish to
type the symbol for “approximately equal”, type the letter A, and press ENTER.
14.5 Generating, reading, and modifying
graphic objects in KeyMath
Warning: Currently, KeyMath’s Graph Viewer is a beta feature. Like for any beta software, HumanWare
offers no technical support or service.
Teachers can generate graphics to give their blind students an idea of what they look like. To do so, they
must first find an image of the graphic on Google Images, save it, and open it with Windows Paint. Then,
they must save the image as monochrome bitmap (.BMP) using the Save As function of Windows Paint.
They can then transfer this file on the BrailleNote Touch to be read.
To read a graphic object, open KeyMath, and open the .bmp file. The Braille code will be automatically
set to RAW, and you will be able to “see” Braille characters that don’t really make sense; their
arrangement define a shape and gradually form a larger graphic image, such as a circle, a diagonal, etc.
To comprehend the whole shape, scroll up and down.
To modify a graphic object, by for example marking a given spot on a graphic, position your edit cursor
at the right place on the graphic from the KeyMath editing box. Type a Braille character to replace the
existing Braille cell with a new one. You can then export your modified math object to clipboard by
pressing BACKSPACE with E, and insert it in a document to send to your teacher.
15 Reading and editing Braille documents
with KeyBRF
15.1 Opening .brf and .brl files
BrailleNote Touch includes KeyBRF, a software designed to open .brf or .brl files. These common Braille
file types are directly written in Braille. There are two ways to open a Braille file with KeyBRF. One way is
to open KeyFiles, find your .brf or .brl file, and activate the file – the file should automatically open with
KeyBRF. Alternatively, select and activate All Applications from the main menu, then select and activate
KeyBRF. From the KeyBRF menu window, activate the Open option and find the file you wish to open.
KeyBRF will display the content of the .brf or .brl file in the same grade it was written in, which means
that if the file was written in grade 2 Braille, it will also be displayed in grade 2 Braille regardless of your
chosen Braille type. In KeyBRF, the Braille text will not be converted to visual text, and sighted users will
only be able to see Braille dots on the screen. Speech feedback is limited in KeyBRF as you are working