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TFTLibrary > TFT

PImage

Description

The base class for drawing a bitmap image from the SD card onscreen. You must include the SD library to use PImage.

Syntax

PImage image;

Parameters

image : the name of the PImage object. You'll refer to this when drawing images on screen.

Returns

none

Example

// 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);
  }

  // draw the image on the screen starting at the top left corner
  EsploraTFT.image(logo, 0, 0);

}

void loop() {

}

See also

Reference Home

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