8bar graphs and drawing, 1 introduction, 2 set drawing color – Matrix Orbital GLK12232-25-SM User Manual
Page 33

Parameters
Parameter
Length
Description
X
1
Left bounds.
Y
1
Top bounds.
W
1
Width
H
1
Height
D
(width*height)/8Data
Description
Drawing a bitmap to the GLK12232-25-SM, without first uploading the
image to the memory can be a very useful feature for drawing images
that are not used very often. In order to accomplish this, you must
supply the display module with the X,Y coordinates, representing the
top left corner of where you would like to draw the bitmap on the
screen, as well as the width and the height of the bitmap. After you have
supplied this data you may then upload the bitmap data to the
GLK12232-25-SM. The length of this file is the bitmap width
multiplied by height, divided by eight. The bitmap data is encoded into
bytes horizontally and is transfered the same as if you were uploading a
file, see Section 12 on page 43 for more information about transferring
data to the display module.
NOTE
Drawing a bitmap directly to the display is supported by flow control.
This command is available but not support in I
2
C mode.
Remembered
No
8
Bar Graphs and Drawing
8.1
Introduction
Supplementary to the ability of the GLK12232-25-SM to display bitmaps and fonts, the GLK12232-25-
SM also allows for a robust 2D drawing environment. With the ability to draw by pixel, line or rectangle,
as well as the ability to continue a line to form a polygon, we are certain that you will spend less time,
developing and creating better looking projects. With the addition of custom bar and strip graphs, you are
sure to find the right tools to make any graphical layout a success.
8.2
Set Drawing Color
Syntax
Hexadecimal
0xFE 0x63 [color]
Decimal
254 99 [color]
ASCII
254 “c” [color]
Parameters
Parameter
Length
Description
color
1
Drawing color (0: White, 1-255:
Black).
Matrix Orbital
GLK12232-25-SM
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