How To Draw In C

The C graphic header file has a builtin function to draw various geometric shapes such as lines, circles, polygons, and quadrilaterals. In this article, you will learn to draw a rectangle using C programming graphics support.

Problem Definition

To draw the rectangle using C graphics support, we write a program that does the following:

• Declare all graphic variables including graphic driver.
• Initialize all graphic variables.
• Initialization of graph and set path to graphic library support in C compiler.
• Set the line style for rectangle.
• Draw the rectangle.
• Close the graph.

Source Code – Draw Rectangle

                /* Program to draw a rectangle using C graphic support */ #include <stdio.h> #include <conio.h> #include <graphics.h> #include <stdlib.h> int main() /* Main function begins */ {      /* Declare the graphic variables */      int gdriver, gmode, userpattern;      int left, right, top, bottom;      /* Initialize the graphic driver to autodetect the graphic drivers */      gdriver = DETECT;      userpattern = 1;      /* Initialization of graph and path set to graphic interface */      initgraph(&gdriver, &gmode, "D:\\TURBOC3\\BGI");      /* Set the line style */      setlinestyle(SOLID_LINE,userpattern,3);      /* Draw the line */      left = 100;      top = 80;      bottom = 220;      right = 350;      rectangle(left, top, right, bottom);      /* close the graph */      getch();      closegraph();      return 0; }              

The most important code is setting dimensions of the rectangle which draw the shape.

left = 100;
top = 80;
bottom = 220;
right = 350;

Each variable is a corner point of the rectangle that defines the length and breadth of the sides of the rectangle. The left is 100 px in x-axis direction, top is 80 px in y-axis direction, the bottom is 220 px in x-axis and the right is 350 px in y-axis direction.

The (right – left) is 250px ( longer side) and the (bottom – top) is 120 px (shorter side) of the rectangle.

Output

Output – Draw a Rectangle

How To Draw In C

Source: https://notesformsc.org/c-draw-rectangle/

Posted by: calhounthesto.blogspot.com

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