Нарисовать Букву

#include "stdafx.h"
#include <windows.h>
#include <iostream>
#include <cmath>
using namespace std;
 
POINTS l[]={{50,500},{87,400},{125,450},{162,400},{275,112},{325,112},{400,400},
            {425,450},{450,437},{475,500},{425,512},{312,125},{287,125},{125,525}};
int sl=sizeof(l)/sizeof(l[0]);
 
double der(double y_1, double y0, double y1, double t_1, double t1) {
    return (t_1*t_1*(y1-y0) + t1*t1*(y0-y_1))/(t1*t_1*(t_1-t1));
}
void cs(double *a, double y_1, double y0, double y1, double y2, double *t) {
    double t1=*(t+1), d0=der(y_1, y0, y1, *t, t1), d1=der(y0, y1, y2, -t1, *(t+2)-t1);
    *a=y0; *(a+1)=d0; *(a+3)=(t1*(d0+d1)+2*(y0-y1))/(t1*t1*t1);
    *(a+2)=(d1-d0)/(2*t1)-3*(*(a+3))*t1/2;
}
double dst(POINTS a, POINTS b) {return sqrt(1.0*(a.x-b.x)*(a.x-b.x)+(a.y-b.y)*(a.y-b.y));}
 
double gp(double *a, double t, int i) {return i>3 ? 0 : *(a+i)+t*gp(a,t,i+1);}
 
POINTS nxt(POINTS *p, int i) {int d = (p-l+i)%sl; d = d<0 ? d+sl : d; return *(l+d);}
 
void dl(HDC hDC, POINTS *p) {
    POINTS p_1=nxt(p,-1), p1=nxt(p,1), p2=nxt(p,2);
    double t[3],a[4],b[4];
    *t=-dst(p_1,*p); *(t+1)=dst(*p,p1); *(t+2)=*(t+1)+dst(p1,p2);
    cs(a, p_1.x, p->x, p1.x, p2.x, t);
    cs(b, p_1.y, p->y, p1.y, p2.y, t);
    MoveToEx(hDC, *a, *b, NULL);
    int n=500;
    for (int i=0; i<=n; ++i) {
        double ti=*(t+1)*i/n;
        LineTo(hDC, gp(a,ti,0), gp(b,ti,0));
    }
}
int _tmain(int argc, _TCHAR* argv[]) {
    HWND hW = GetConsoleWindow();
    HDC hDC = GetDC(GetConsoleWindow());
    HPEN pen = CreatePen(PS_SOLID, 1, RGB(255, 255, 255));
    SelectObject(hDC, pen);
 
    setlocale(LC_ALL, "Russian"); cout<<"Увеличьте высоту консоли\n";
    system("pause"); system("cls"); 
    for (int i=0; i<sl; ++i) dl(hDC, l+i);
 
    DeleteObject(pen);
    ReleaseDC(hW, hDC);
    system("pause"); return 0;
}