drawLine

drawLine(uint8_t x0, uint8_t y0, uint8_t x1, uint8_t y1)

Description

Draws a line of the current color (you can choose index color with setColor()). The coordinate system is the one usually used in most of computer display, with the origin point (0,0) located at the top left corner of the display.

Parameters

x0

The x coordinate in the screen from where the line will start.

y0

The y coordinate in the screen from where the line will start.

x1

The x coordinate in the screen where the line will end.

y1

The y coordinate in the screen where the line will end.

Example

main.cpp

#include "Pokitto.h"

constexpr int step = 16;
constexpr int axisLenght = 48;
int offset = 0;

void update() {
    using PD = Pokitto::Display;

    //X Axis from center of screen
    PD::setColor(6); //Set color blue
    PD::drawLine(PD::width / 2, PD::height / 2, PD::width / 2 + axisLenght, PD::height / 2);

    //Y Axis from center of screen
    PD::setColor(7); //Set color red
    PD::drawLine(PD::width / 2, PD::height / 2, PD::width / 2, PD::height / 2 - axisLenght);

    //Bottom corner draw
    PD::setColor(1); //Set color white
    for (int y = offset - step; y < PD::height; y += step) {
        PD::drawLine(0, y, y + step, PD::height);
    }
    offset++;
    offset %= step;
}

Project settings

My_settings.h

#define PROJ_SCREENMODE MODE15