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Matrix Orbital GTT70A User Manual

Page 19

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Command Summary

4.9 Get Drawing
Colour

Dec
Hex
ASCII

254 100

FE 64

þ d



2.0

Read the colour that is currently being used by all drawing commands.

Return Message

252 100 Length

R G B

R

Byte

Intensity of red, 0 to 255, limited to display metrics.

G

Byte

Intensity of green, 0 to 255, limited to display metrics.

B

Byte

Intensity of blue, 0 to 255, limited to display metrics.

4.10 Continue Line

Dec
Hex
ASCII

254 101

FE 65

þ e

X Y
X Y
X Y

2.0

Draw a line from the last point drawn to the coordinate specified using the current drawing colour. The last stored
point is automatically updated from Draw Pixel, Draw Line, and Continue Line commands.

X

Signed Short

Horizontal coordinate of line terminus.

Y

Signed Short

Vertical coordinate of line terminus

4.11 Draw Line

Dec
Hex
ASCII

254 108

FE 6C

þ l

X1 Y1 X2 Y2
X1 Y1 X2 Y2
X1 Y1 X2 Y2

2.0

Draw a line connecting two termini using the current drawing colour. Lines may be rendered differently when
drawn right to left versus left to right.

X1

Signed Short

Horizontal coordinate of first line terminus.

Y1

Signed Short

Vertical coordinate of first line terminus.

X2

Signed Short

Horizontal coordinate of second line terminus.

Y2

Signed Short

Vertical coordinate of second line terminus.

4.12 Draw Pixel

Dec
Hex
ASCII

254 112

FE 70

þ p

X Y
X Y
X Y

2.0

Draw a single pixel at the specified coordinate using the current drawing colour.

X

Signed Short

Horizontal position of pixel to be drawn.

Y

Signed Short

Vertical position of pixel to be drawn.

4.13 Draw Rectangle

Dec
Hex
ASCII

254 114

FE 72

þ r

X Y Width Height
X Y Width Height
X Y Width Height

2.0

Draw a rectangular frame one pixel wide using the current drawing colour.

X

Signed Short

Leftmost coordinate of the rectangle.

Y

Signed Short

Topmost coordinate of the rectangle.

Width

Short

Width of the rectangle.

Height

Short

Height of the rectangle.

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