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8bar graphs and drawing, 1 introduction, 2 set drawing color – Matrix Orbital GLK19264-7T-1U User Manual

Page 33

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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 GLK19264-7T-1U, 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
GLK19264-7T-1U. 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 44 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 GLK19264-7T-1U to display bitmaps and fonts, the GLK19264-7T-

1U 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

GLK19264-7T-1U

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