circle()

Description

Draws a circle on the screen.

The circle is drawn relative to its center point, which means the total diameter will always be an odd number.

Syntax


screen.circle(xPos, yPos, radius);


Parameters

xPos: int, the location of the center of the circle on the x axis
yPos: int, the location of the center of the circle on the y axis
radius: int, the radius of the circle

Returns

int : the width of the screen in pixels

Example

#include <SPI.h>
#include <TFT.h>

#define cs   10
#define dc   9
#define rst  8

TFT screen = TFT(cs, dc, rst);

void setup() {
  // initialize the screen
  screen.begin();

  // make the background black
  screen.background(0,0,0);

  // set the stroke color to white
  screen.stroke(255,255,255);

  // set the fill color to grey
  screen.fill(127,127,127);

  // draw a circle in the center of screen
  screen.circle(screen.width()/2, screen.height()/2, 10);
}

void loop() {

}

See also

－ TFT
－ rect()
－ line()
－ point()

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The text of the 86Duino reference is a modification of the Arduino reference, and is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.