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| Name |
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write()
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| Examples |
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#include <Binary.h>
#include <Sprite.h>
#include <Matrix.h>
Matrix myMatrix = Matrix(0, 2, 1);
void setup()
{
}
void loop()
{
myMatrix.clear(); // clear display
delay(1000);
// turn some pixels on
myMatrix.write(1, 5, HIGH);
myMatrix.write(2, 2, HIGH);
myMatrix.write(2, 6, HIGH);
myMatrix.write(3, 6, HIGH);
myMatrix.write(4, 6, HIGH);
myMatrix.write(5, 2, HIGH);
myMatrix.write(5, 6, HIGH);
myMatrix.write(6, 5, HIGH);
delay(1000);
}
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#include <Binary.h>
#include <Sprite.h>
#include <Matrix.h>
Matrix myMatrix = Matrix(0, 2, 1);
/* create a new Sprite instance
8 pixels wide, 4 pixels tall
*/
Sprite wave = Sprite(
8, 4,
b00011000,
b00100100,
b01000010,
b10000001
);
void setup()
{
}
int x = 0;
void loop()
{
myMatrix.write(x, 2, wave); // place sprite on screen
myMatrix.write(x - 8, 2, wave); // place sprite again, elsewhere on screen
delay(75); // wait a little bit
myMatrix.clear(); // clear the screen for next animation frame
if(x == 8) // if reached end of animation sequence
{
x = 0; // start from beginning
}
x++; // advance x coordinate to the right
}
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| Description |
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The write(x, y, value) method is used to set individual pixels on or off. Pixel locations are specified in x, y coordinates and the state of a pixel can be HIGH or LOW. The write(x, y, sprite) method is used to write the pixel data tored on sprite, this is very useful when creating animations.
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| Syntax |
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matrix.write(x, y, value)
matrix.write(x, y, sprite)
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| Parameters |
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| x
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The x position
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| y
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The y position
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| value
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The value for the selected pixel, it can be either HIGH or LOW
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| sprite
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An Sprite object storing pixel data on it
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| matrix
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The Matrix object
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| Returns |
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None
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| Usage |
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Application
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