Topics

1

Graphics / How to color the lines of a Vertex Array

« on: March 03, 2022, 10:13:04 am »

Recently I was making a Maths Plotter on SFML, and I have done the basic core features like Drawing the animations and input.

But I wanted to know if I can change the color of a vertex array.
Here is the code for reference

void drawFunction(sf::RenderWindow &window)
        {
            while(x < 30 && drawing == true)
            {
                aq::sleep(0.01);
                x += 0.1;
                std::cout << x << std::endl;
                window.clear();
                curve.setPosition(sf::Vector2f(x*20.f + window.getSize().x/2,  
                    -1*(sin(x))*20.f + window.getSize().y/2));
                function.append(
                    sf::Vertex(curve.getPosition()));
               
                window.draw(function);
                window.draw(curve);
                window.draw(sprite);
                window.draw(x_axis);
                window.draw(y_axis);
                window.display();
            }
            if(x > 15 || drawing == false || (x > 15 && drawing == false))
            {
                drawing = false;
                window.clear();
                window.draw(function);
                window.draw(sprite);
                window.draw(x_axis);
                window.draw(y_axis);
                window.display();
            }
        }

2

SFML projects / How to change a string to a function name

« on: February 06, 2022, 10:29:44 am »

soo recently I was making a math plotter, and I managed to make functions like the parabola, the sine function and something like that. But I don't know how to change the string into a desiarable function type,

For example If I want a function of x^2 and enter a string through the function parameter, How do I interpret it through the vertex array?