nimisha1901014

PROGRAM1.C

@@ -0,0 +1,19 @@
+#include<graphics.h>
+#include<stdio.h>
+#include<conio.h>
+#include<graphics.h>
+void main(){
+	int gd=DETECT,gm,x1,x2,y1,y2,x3,y3,x4,y4;
+	initgraph(&gd,&gm,"C:\\TurboC3\\BGI");
+	printf("Enter the line coordinates");
+	scanf("%d %d %d %d",&x1,&y1,&x2,&y2);
+	line(x1,y1,x2,y2);
+
+	printf("enter the additional coordinates");
+	scanf("%d %d %d %d",&x3,&y3,&x4,&y4);
+
+	setcolor(RED);
+	line(x1+x3,y1+y3,x2+x4,y2+y4);
+	getch();
+	closegraph();
+}

PROGRAM3.C

@@ -0,0 +1,33 @@
+#include<graphics.h>
+#include<conio.h>
+#include<stdio.h>
+void draw_line(int,int,int,int);
+void main(){
+	int x1,x2,y1,y2,gd=DETECT,gm;
+	initgraph(&gd,&gm,"C:\\TurboC3\\BGI");
+	scanf("%d %d %d %d",&x1,&y1,&x2,&y2);
+	draw_line(x1,y1,x2,y2);
+	getch();
+	closegraph();
+}
+void draw_line(int x1,int y1,int x2,int y2){
+	int dx,dy,steps,i,x,y;
+	dx=x2-x1;
+	dy=y2-y1;
+	if(dx>=dy)steps=dx;
+	else steps=dy;
+	x=x1;
+	y=y1;
+	i=1;
+	dx=dx/steps;
+	dy=dy/steps;
+	while(i<=steps){
+		putpixel(x,y,WHITE);
+		x=x+dx;
+		y=y+dy;
+		i++;
+
+	}
+
+
+}