Draw shapes using C graphics

C program to draw shapes(Circle, Rectangle, Square, Ellipse, Pie slice & Polygon)

  #include <stdio.h>
  #include <conio.h>
  #include <graphics.h>
  #include <dos.h>

  int main() {
        /* request auto detection */
        int gdriver = DETECT, gmode, err;
        int i, radius, x1, y1, val, xrad, yrad;
        int x[6], y[6], poly[12];

        /* initialize graphic mode */
        initgraph(&gdriver, &gmode, "C:/TURBOC3/BGI");
        err = graphresult();

        if (err != grOk) {
                /* error occurred */
                printf("Graphics Error: %s\n",
                                grapherrormsg(err));
                return 0;
        }

        /*
         * setting initial position for
         * circle, rectangle, square,
         * ellipse, arc and polygons
         */
        x[0] = x[3] = (getmaxx() / 3) / 2;
        x[1] = x[4] = 2 * ((getmaxx() / 2) / 2);
        x[2] = x[5] = 3 * ((getmaxx() / 2) / 2);

        y[0] = y[1] = y[2] = (getmaxy() / 2) / 2;
        y[3] = y[4] = y[5] = 3 * ((getmaxy() / 2) / 2);

        radius = 100;

        x1 = 60, y1 = 30;

        val = 50, xrad = 100, yrad = 50;

        poly[0] = x[5], poly[1] = y[5] - 50;

        poly[2] = x[5] + 50, poly[3] = y[5];

        poly[4] = x[5] + 40, poly[5] = y[5] + 50;

        poly[6] = x[5] - 40, poly[7] = y[5] + 50;

        poly[8] = x[5] - 50, poly[9] = y[5];

        poly[10] = x[5], poly[11] = y[5] - 50;

        /* draws nested shapes */

        for (i = 1; i < 6; i++) {

                setcolor(i);

                setfillstyle(SOLID_FILL, i);

                /* drawing circle */

                circle(x[0], y[0], radius);

                floodfill(x[0], y[0], i);

                /* draws rectangle */

                rectangle(x[1] - x1, y[1] - y1, x[1] + x1, y[1] + y1);

                floodfill(x[1] - x1 + 1, y[1] - y1 + 1, i);

                /* draws square */

                rectangle(x[2] - val, y[2] - val, x[2] + val, y[2] + val);

                floodfill(x[2] - val + 1, y[2] - val + 1, i);

                /* draws ellipse */

                ellipse(x[3], y[3], 0, 360, xrad, yrad);

                floodfill(x[3], y[3], i);

                /* draws a circular pie slice */

                pieslice(x[4], y[4], 30, 150, radius);

                /* draws polygon */

                drawpoly(6, poly);

                floodfill(x[5], y[5], i);

                /* manipulating the subsequent positions for all shapes */

                poly[1] = poly[1] + 10, poly[2] = poly[2] - 10;

                poly[4] = poly[4] - 10, poly[5] = poly[5] - 10;

                poly[6] = poly[6] + 10, poly[7] = poly[7] - 10;

                poly[8] = poly[8] + 10, poly[11] = poly[11] + 10;

                radius = radius - 15;

                x1 = x1 - 10, y1 = y1 - 5;

                xrad = xrad - 10, yrad = yrad - 5;

                val = val - 10;

                sleep(1);

        }

        getch();

        /* deallocate memory allocated for graphic screen */

        closegraph();

        return 0;

  }

Output: (Implement nested shapes using c graphics)

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