lineto() function in C
The header file graphics.h contains lineto() function which draws a line from current position to the point(x,y).
Note : Use getx() and gety() to get the current position.
Syntax :
lineto(int x, int y); where, (x, y) are the coordinates upto which the line will be drawn from previous point.
CASE 1 : When the initial position of point is (0,0)
Below is the implementation of lineto() function with initial position at origin :
// C Implementation for lineto() #include <graphics.h> // driver code int main() { // gm is Graphics mode which is // a computer display mode that // generates image using pixels. // DETECT is a macro defined in // "graphics.h" header file int gd = DETECT, gm; // initgraph initializes the // graphics system by loading a // graphics driver from disk initgraph(&gd, &gm, "" ); // lineto function lineto(250, 100); getch(); // closegraph function closes the // graphics mode and deallocates // all memory allocated by // graphics system . closegraph(); return 0; } |
Output :
CASE 2 : When the initial position of point is not (0, 0)
Below is the implementation of lineto() function with initial position other than origin :
// C Implementation for lineto() #include <graphics.h> // driver code int main() { // gm is Graphics mode which is // a computer display mode that // generates image using pixels. // DETECT is a macro defined in // "graphics.h" header file int gd = DETECT, gm; // initgraph initializes the // graphics system by loading a // graphics driver from disk initgraph(&gd, &gm, "" ); // change initial position of point // with moveto function moveto(100, 100); // lineto function lineto(250, 100); getch(); // closegraph function closes the // graphics mode and deallocates // all memory allocated by // graphics system . closegraph(); return 0; } |
Output :