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TFTLibrary > TFT
Checks the width of the PImage object.
image.width();
none
int : the image's width in pixels
// this example looks for a file named "logo.bmp"
// on the SD card, and renders it to the screen
#include <Esplora.h>
#include <SD.h>
#include <SPI.h>
#include <TFT.h> // Arduino TFT library
#define SD_CS 8 // Chip select line for SD card in Esplora
PImage logo;
void
setup
(
)
{
// initialize the screen
EsploraTFT.begin
(
)
;
// initialize the SD card
SD.begin
(SD_CS)
;
// set the background the black
EsploraTFT.background
(
0
,
0
,
0
)
;
// load the image into the named instance of PImage
logo = EsploraTFT.loadImage
(
"arduino.bmp"
)
;
// if it is a valid image file, turn the Esplora's LED green
if
(logo.isValid
(
)
)
{
Esplora.writeGreen
(
255
)
;
}
else
{
// if it is not valid, turn the LED red
Esplora.writeRed
(
255
)
;
}
}
void
loop
(
)
{
// randomly draw the image on screen
int x =
random
(EsploraTFT.width
(
)
- logo.width
(
)
)
;
int y =
random
(EsploraTFT.height
(
)
- logo.height
(
)
)
;
EsploraTFT.image
(logo, x, y)
;
delay
(
1500
)
;
}
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The text of the Arduino reference is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.