Wap in c to draw a line using DDA algorithm
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This C code uses the Digital Differential Algorithm (DDA) to draw a line on a graph between two points. It takes integer inputs for the x and y coordinates of the start and end points, calculates the change in x and y, and number of steps. It then uses putpixel to draw each point by rounding the incremental changes in x and y over the number of steps.
Wap in c to draw a line using DDA algorithm
- 1. WAP in C to draw a line using DDA(Digital Differential Algorithm) algorithm OUTPUT C CODE: #include <stdio.h> #include <conio.h> #include <math.h> #include <graphics.h> #define round(val)(int)(val+0.5) void main() { int gd = DETECT, gm; void line_daa(int,int,int,int); int Xa,Xb,Ya,Yb; clrscr(); printf("ntEnter the values:"); scanf("%d%d%d%d",&Xa,&Ya,&Xb,&Yb); initgraph(&gd, &gm, "C:TCBGI"); cleardevice(); line_daa(Xa,Ya,Xb,Yb);
- 2. getch(); closegraph(); } void line_daa(int Xa,int Ya,int Xb,int Yb) { int Dx=Xb-Xa,Dy=Yb-Ya,steps,k; float Xin,Yin,X=Xa,Y=Ya; if(abs(Dx)>abs(Dy)) steps=abs(Dx); else steps=abs(Dy); Xin=Dx/(float)steps; Yin=Dy/(float)steps; putpixel(round(X),round(Y),6); for(k=0;k<steps;k++) { X=X+Xin; Y=Y+Yin; putpixel(round(X),round(Y),6); } }