#include #include #include #define matrix_size 100 //draw rectangle (x1,y1) length L wedth W void rect (int x1, int y1,int L,int W, char arr[matrix_size][matrix_size]); //draw line (x1,y1) to (x2,y2) void line (int x1, int y1, int x2,int y2, char arr[matrix_size][matrix_size]); //draw circle center( a,b ) and radius=r void circle (int a, int b,int r, char arr[matrix_size][matrix_size]); //drow Vertical line at x=x1 (x1,y1) to (x1,y2) void vertical_Line (int x1, int y1, int y2, char arr[matrix_size][matrix_size]); int main() { char arr[matrix_size][matrix_size]; for(int y = 0; y < matrix_size; y++) for(int x = 0; x < matrix_size; x++) arr[y][x] = ' '; //fill the matrix with - //draw rectangle (23,23) length 30 wedth 10 rect(10, 10, 50, 30, arr); //draw line (3,3) to (33,13) line(70,55,80,60,arr); line(70,55,80,60,arr); //draw vertical Line at x=10 vertical_Line(30,30,50,arr); vertical_Line(30,30,50,arr); //draw circle center( 17,20) radius=10 circle(20, 20, 10, arr); circle(40, 20, 10, arr); circle(60, 20, 10, arr); //plot the matrix for(int y = 0; y < matrix_size; y++){ for(int x = 0; x < matrix_size; x++) printf("%c", arr[y][x]); printf(" "); } return 0; } //draw rectangle (x1,y1) length L wedth W void rect (int x1, int y1,int L,int W, char arr[matrix_size][matrix_size]) { for(int y = 0; y < matrix_size; y++) { for(int x = 0; x < matrix_size; x++) { // see if we're within the range of x and y if(x > x1 && x < x1+L && (y > y1 && y < y1+W)) { arr[y][x] = '*'; } } } } //draw circle center( a,b ) and radius=r void circle (int a, int b,int r, char arr[matrix_size][matrix_size]) { double EPSILON = 6;// need to be close to the radius value for(int y = 0; y < matrix_size; y++) { for(int x = 0; x < matrix_size; x++) { // see if we're close to (x-a)**2 + (y-b)**2 == r**2 if( fabs(pow((x-a),2)+pow((y-b),2)-pow(r,2)) < EPSILON) { arr[y][x] = '*'; } } } } //draw line (x1,y1) to (x2,y2) void line (int x1, int y1, int x2,int y2, char arr[matrix_size][matrix_size]) { //0=y-m*x-c double EPSILON = 0.5, m, c; m= (double) (y2-y1)/(x2-x1); // the slope of the line c=m*x1-y1; //the y-intercept of the line for(int y = 0; y < matrix_size; y++) { for(int x = 0; x < matrix_size; x++) { // see if we're close to y = m*x + c if( x >= x1 && x <= x2 && fabs(y-m*x+c) < EPSILON) { arr[y][x] = '*'; } } } } //drow Vertical line at x=x1 (x1,y1) to (x1,y2) void vertical_Line (int x1, int y1, int y2, char arr[matrix_size][matrix_size]) { for(int y = 0; y < matrix_size; y++) { for(int x = 0; x < matrix_size; x++) { // if x=x1 virtical Line if( x == x1 && yy1) { arr[y][x] = '*'; } } } }