Messages

1

Graphics / Re: Mismatch in coordinate system of window and getPixel

« on: November 13, 2018, 05:28:52 pm »

It worked.
But why pixel/point coordinates are not integers?

PS: Is this the best way to solve this problem?

2

Graphics / Mismatch in coordinate system of window and getPixel

« on: November 13, 2018, 04:19:51 pm »

#include <SFML/Graphics.hpp>
#include <iostream>
int main()
{
    sf::RenderWindow window(sf::VideoMode(200, 200), "SFML works!",sf::Style::Default);
    window.setVerticalSyncEnabled(true);
    sf::Vertex point;
    point.color = sf::Color::Red;
    point.position = sf::Vector2f(2,2);
    window.draw(&point,1,sf::Points),
    window.clear();
    window.display();
    sf::Image img = window.capture();
    window.display();
    window.clear();
    window.draw(&point,1,sf::Points);
    img = window.capture();
    std::cout << img.getPixel(2,1).toInteger() <<  '\n'; // gives red
    std::cout << img.getPixel(2,2).toInteger() <<  '\n'; //gives black, this should have given red
    window.close();
    return 0;
}
 

Pixel (2,2) is red using draw but is black using getPixel. Why?