c ++ – Attempting to draw sf :: text into the window crashes

When I was reviewing my older SFML projects (2-3 months old) to see if I could recompile them to get an updated executable file, I noticed that any program that used sf :: text was triggered a specific error. After I closed the window, an exception was thrown and Visual Studio opened an additional "xmemory" tab, with the exception appearing on line 1311. Apparently, something in my code caused the function "inline void _Container_base12 :: _ orphan_all ()". With this simple example I will illustrate the problem I have.

int main() {

 RenderWindow window(VideoMode(600, 600), "halp pls", Style::Close | Style::Titlebar);
 Font font;

 font.loadFromFile("C:\Users\Darien Miller\Desktop\fonts\ARCADE_I.ttf");
 Text t("Darien", font);

 while (window.isOpen()) {
     Event e;
     while (window.pollEvent(e)){
         if (e.type == Event::Closed)
             window.close();
     }

     window.clear();
     window.draw(t);//This is where the error occurred! 
     window.display();
 }
}

If I leave out window.draw(t)The program runs fine, but of course I have to be able to draw texts on the screen to continue my SFML projects. I am not sure if this is a problem with the code, SFML (I have the most recent, 2.5.1), Visual Studio or any other unknown. At this point, I ran out of ideas: /

Parametric Functions – Draw a NDEigensystem solution over a helicoid

I'm trying to draw the solutions of a particular Hamiltonian eigensystem over a helicoid. In other words, my solutions are a function of the radial variables (r,$ phi $). The helicoid results from the parameterization: (r cos (a$ phi $), sin (a$ phi $) $ phi $).

How do I display the solutions over the helicoid as a heatmap or something? The problem with Plot3D is that the variables are treated as (x, y) coordinates. Does RegionFunction help in this case?

The solutions have the form {funs, vals}, where funs is the list of all eigenfunctions.

How to draw this shape with better logic?

#include 

using namespace std;

int main() {
  /**
      *
     * *
    *   *
   *     *
  *       *
 *         *
*************
  */
  int spaces_before = 6; // spaces before printing the stars
  int spaces_after = 0; // spaces after printing the first star
  int stars = 1;
  for (int i = 1; i <= 7; i++) { 
    for (int j = 1; j <= spaces_before; j++) {
      cout << ' ';
    }
    if (i == 1) {
      cout << "*";
    } else if (i != 7) {
      cout << '*';
      for (int j = 1; j <= spaces_after; j++) {
        cout << ' ';
      }
      cout << '*';
    } else {
      for (int j = 1; j <= stars; j++) {
        cout << '*';
      }
    }
    spaces_before--;
    if (i == 1) {
      spaces_after++;
    } else {
      spaces_after += 2;
    }
    cout << 'n';
    stars += 2; 
  }
}

I am a beginner in C ++ and have received this task from my teacher. I tried that and basically it works, but I doubt that my code is not easy. There is an easier way. How can I make my code easier? Notes are welcome.

I will draw high-quality cartoon portrait of your photo for $ 10

I will draw high quality cartoon portrait of your photo

FULL INFORMATION ABOUT THIS SERVICE

BASIC $ 10
+ Headshot avatar + color with base shadow
+ Unlimited revision
+12 hours delivery

1 day delivery + Unlimited revisions

  • 1 figure
  • High resolution
  • colour

STANDARD $ 30

+ Half-body avatar + color with default shadow
+ Unlimited revision
+48 hours delivery

Delivery 2 days + Unlimited revisions

  • 1 figure
  • High resolution
  • colour
  • Background / scene
  • Commercial use

PREMIUM $ 50

+ Full Body Avatar + Color with Premium Shadow
+ Unlimited revision
+ Commercial use
+ VIP support

Delivery 2 days + Unlimited revisions

  • 1 figure
  • High resolution
  • colour
  • Background / scene
  • Commercial use
  • Full

Draw – How to draw a multi-valued function in $ mathbb {R} ^ 2 $ with Mathematica?

First, consider the cubic equation
$$ x ^ 3 + a = x. $$

Mathematica makes it easy to find real solutions to the above equation.

F(a_):= Solve(x^3 + a == x , x, Reals)

Now I want to draw the graph of the multi-valued function $$ G: (-1,1) to 2 ^ mathbb {R} $$
$$ a mapsto { text {the real solutions of} x ^ 3 + a = x }, $$
i.e. the sentence

$$ text {Graf} (G): = {(x, y); x in (-1,1) text {and} y in G (x) }. $$

Can someone help me?

Plotting – How to draw a cross-section of a ParametricPlot3D?

I'm drawing a surface with ParametricPlot3D. Ideally, I would like to draw an intersection of the surface with a plane, as shown in another question (cross sections or slices of 3D figures – Mathematica). In my case, however, the parameters u and v do not correspond to the space coordinates x, y. Because of this, I used RegionPlot instead of CountourPlot to draw all pairs (x, y) that intersect the surface for a given value of z. It does not work and I'm lost trying to find alternatives.

Surface(u_, v_) = {Cos(u), Sin(u) + Cos(v), Sin(v)};

Row({Show({ParametricPlot3D(
     Surface(u, v), {u, 0, 2Pi}, {v, -Pi, Pi}, 
     PlotStyle -> Opacity( 0.2)), 
    Graphics3D({Blue, Opacity(0.4), 
      InfinitePlane({0, 0, 0}, {{1, 0, 0}, {0, 1, 0}})})}, 
   ImageSize -> 300), 
  RegionPlot(
   Exists({u, v}, Surface(u, v) == {x, y, 0}), {x, -1, 1}, {y, -1, 1},
    ImageSize -> 300)})

In fact, my interface is a bit more complicated, so I chose a simple one to ask that question. Ideally, later on, I want to be able to change the normal vector of the plane by checking any angle of the cross section. So please remember that when you think about the question.
Thank you for every commitment in my problem!