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Posts Tagged ‘Graphics in Cpp’
C++ Graphics – 21 – Analog Clock code/program showing current time
December 21, 2009
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Analog Clock program by using Trigonometry (SIN & COS) functions:
#include <stdio.h>
#include <conio.h>
#include <graphics.h>
#include <math.h>
#include <dos.h>
#define PI 3.14
void getTime(int *h, int *m, int *s ){
struct time t;
gettime(&t);
gotoxy(36,18);
printf("%2d:%02d:%02d.%02d\n",
t.ti_hour,t.ti_min,t.ti_sec,t.ti_hund);
*h = t.ti_hour;
*m = t.ti_min;
*s = t.ti_sec;
}
void main(){
int gd=DETECT, gm;
initgraph(&gd, &gm, "\\tc");
int xs, ys, xm, ym, xh, yh, h, m, s;
while(!kbhit()){
cleardevice();
getTime(&h, &m, &s);
settextstyle(1,0,0);
setcolor(WHITE);
outtextxy(300,15,"12");
outtextxy(315,425,"6");
outtextxy(105,220,"9");
outtextxy(520,220,"3");
settextstyle(5,0,0);
setcolor(GREEN);
outtextxy(275,300,"CLOCK");
settextstyle(2 ,0,0);
setcolor(LIGHTRED);
outtextxy(310,295,"Manoj");
xh = cos((h*30 + m / 2) * PI / 180 - PI / 2) * 150 + 320;
yh = sin((h*30 + m / 2) * PI / 180 - PI / 2) * 150 + 240;
xm = cos(m * PI / 30 - PI / 2) * 180 + 320;
ym = sin(m * PI / 30 - PI / 2) * 180 + 240;
xs = cos(s * PI / 30 - PI / 2) * 210 + 320;
ys = sin(s * PI / 30 - PI / 2) * 210 + 240;
setcolor(LIGHTBLUE);
circle(320,240,220);
setcolor(LIGHTRED);
line(320,240,xh,yh);
setcolor(LIGHTGREEN);
line(320,240,xm,ym);
setcolor(YELLOW);
line(320,240,xs,ys);
sleep(1);
}
}
Categories: Cpp Graphics
Analog Clock Cpp, Cpp, Graphics in Cpp
C++ Graphics – 20 – SCALING of LINE, TRIANGLE and RECTANGLE w.r.t a Point
December 20, 2009
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SCALING of LINE, TRIANGLE and RECTANGLE w.r.t a Point.
#include <math.h>
#include <stdio.h>
#include <conio.h>
#include <stdlib.h>
#include <graphics.h>
const int MAX = 5;
const double PI = 3.14;
void GetCords(float mat1[][MAX], float mat2[][MAX], int n){
int i, j;
for(i=0; i<n; i++){
printf("\n Enter Coordinate no %d:- \n", i+1);
for(j=0; j<2; j++){
scanf("%f", &mat1[j][i]);
}
}
for(i=0; i<n; i++){
mat2[0][i] = mat1[0][i];
mat1[0][i] = 320 + mat1[0][i];
mat2[1][i] = mat1[1][i];
mat1[1][i] = 240 - mat1[1][i];
}
setcolor(GREEN);
line(0, 240, 640, 240);
outtextxy(630, 245, "x");
line(320, 0, 320, 480);
outtextxy(310, 0, "y");
outtextxy(280, 245, "(0,0)");
setcolor(YELLOW);
moveto(mat1[0][0], mat1[1][0]);
for(i=0; i<n; i++){
lineto(mat1[0][i], mat1[1][i]);
moveto(mat1[0][i], mat1[1][i]);
}
lineto(mat1[0][0], mat1[1][0]);
}
void pointScale(float mat2[][MAX], int n){
int i, j, k;
float tmat[MAX][MAX], tot[MAX][MAX];
int sx, sy;
int px, py;
// Get a Point.
px = mat2[0][0];
py = mat2[1][0];
printf("\n Enter the Scale value of x: ");
scanf("%d", &sx);
printf("\n Enter the Scale value of y: ");
scanf("%d", &sy);
// Inv Translation to Origin.
for(i=0; i<n; i++){
mat2[0][i] -= px;
mat2[1][i] -= py;
}
// Scaling
tmat[0][0] = sx;
tmat[0][1] = 0;
tmat[1][0] = 0;
tmat[1][1] = sy;
for(i=0; i<2; i++){
for(j=0; j<n; j++){
tot[i][j] = 0;
for(k=0; k<2; k++){
tot[i][j] = tot[i][j] + (tmat[i][k] * mat2[k][j]);
}
}
}
// Trnaslate from the Origin.
for(i=0; i<n; i++){
tot[0][i] += px;
tot[1][i] += py;
}
for(i=0; i<n; i++){
tot[0][i] = 320 + tot[0][i];
tot[1][i] = 240 - tot[1][i];
}
setcolor(LIGHTRED);
moveto(tot[0][0], tot[1][0]);
for(i=0; i<n; i++){
lineto(tot[0][i], tot[1][i]);
moveto(tot[0][i], tot[1][i]);
}
lineto(tot[0][0], tot[1][0]);
}
void main(){
int gd=DETECT, gm;
initgraph(&gd, &gm,"\\tc");
float mat1[MAX][MAX], mat2[MAX][MAX];
int ch, n;
while(1){
clrscr();
cleardevice();
printf("\n SCALING w.r.t a point");
printf("\n ~~~~~~~~~~~~~~~~~~~~~~\n");
printf("\n 1 -> LINE.");
printf("\n 2 -> TRIANGLE.");
printf("\n 3 -> RECTANGLE");
printf("\n 4 -> Exit.");
printf("\n Enter your choice: ");
scanf("%d", &ch);
clrscr();
cleardevice();
switch(ch){
case 1: // LINE.
n=2;
break;
case 2: // TRIANGLE.
n=3;
break;
case 3: // RECTANGLE.
n=4;
break;
default:
gotoxy(10, 10);
printf(" Dev. By: Manoj Pandey.");
gotoxy(15, 15);
printf("MCA 3d Sem.");
getch();
closegraph();
exit(1);
} // end of switch.
GetCords(mat1, mat2, n); // Input of Coordinates.
pointScale(mat2, n); // Scaling and Displaying.
getch();
} // end of while.
} // end of main.
Categories: Cpp Graphics
Cpp, Graphics in Cpp, SCALING of LINE, SCALING of RECTANGLE, SCALING of TRIANGLE
C++ Graphics – 19 – ROTATION of LINE, TRIANGLE and RECTANGLE w.r.t a Point
December 19, 2009
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ROTATION of LINE, TRIANGLE and RECTANGLE w.r.t a Point.
#include <math.h>
#include <stdio.h>
#include <conio.h>
#include <stdlib.h>
#include <graphics.h>
const int MAX = 5;
const double PI = 3.14;
void GetCords(float mat1[][MAX], float mat2[][MAX], int n){
int i, j;
for(i=0; i<n; i++){
printf("\n Enter Coordinate no %d:- \n", i+1);
for(j=0; j<2; j++){
scanf("%f", &mat1[j][i]);
}
}
for(i=0; i<n; i++){
mat2[0][i] = mat1[0][i];
mat1[0][i] = 320 + mat1[0][i];
mat2[1][i] = mat1[1][i];
mat1[1][i] = 240 - mat1[1][i];
}
setcolor(GREEN);
line(0, 240, 640, 240);
outtextxy(630, 245, "x");
line(320, 0, 320, 480);
outtextxy(310, 0, "y");
outtextxy(280, 245, "(0,0)");
setcolor(YELLOW);
moveto(mat1[0][0], mat1[1][0]);
for(i=0; i<n; i++){
lineto(mat1[0][i], mat1[1][i]);
moveto(mat1[0][i], mat1[1][i]);
}
lineto(mat1[0][0], mat1[1][0]);
}
void pointRotate(float mat2[][MAX], int n){
int ang, i, j, k;
float tmat[MAX][MAX], tot[MAX][MAX];
float rad;
int px, py;
// Get a Point.
px = mat2[0][0];
py = mat2[1][0];
printf("\n Enter the Angle (in Degrees):- \n");
scanf("%d", &ang);
// Inv Translation to Origin.
for(i=0; i<n; i++){
mat2[0][i] -= px;
mat2[1][i] -= py;
}
// Rotation.
rad = (ang * PI) / 180;
tmat[0][0] = cos(rad);
tmat[0][1] = -sin(rad);
tmat[1][0] = sin(rad);
tmat[1][1] = cos(rad);
for(i=0; i<2; i++){
for(j=0; j<n; j++){
tot[i][j] = 0;
for(k=0; k<2; k++){
tot[i][j] = tot[i][j] + (tmat[i][k] * mat2[k][j]);
}
}
}
// Trnaslate from the Origin.
for(i=0; i<n; i++){
tot[0][i] += px;
tot[1][i] += py;
}
for(i=0; i<n; i++){
tot[0][i] = 320 + tot[0][i];
tot[1][i] = 240 - tot[1][i];
}
setcolor(LIGHTRED);
moveto(tot[0][0], tot[1][0]);
for(i=0; i<n; i++){
lineto(tot[0][i], tot[1][i]);
moveto(tot[0][i], tot[1][i]);
}
lineto(tot[0][0], tot[1][0]);
}
void main(){
int gd=DETECT, gm;
initgraph(&gd, &gm,"\\tc");
float mat1[MAX][MAX], mat2[MAX][MAX];
int ch, n;
while(1){
clrscr();
cleardevice();
printf("\n ROTATION w.r.t a point");
printf("\n ~~~~~~~~~~~~~~~~~~~~~~\n");
printf("\n 1 -> LINE.");
printf("\n 2 -> TRIANGLE.");
printf("\n 3 -> RECTANGLE");
printf("\n 4 -> Exit.");
printf("\n Enter your choice: ");
scanf("%d", &ch);
clrscr();
cleardevice();
switch(ch){
case 1: // LINE.
n=2;
break;
case 2: // TRIANGLE.
n=3;
break;
case 3: // RECTANGLE.
n=4;
break;
default:
gotoxy(10, 10);
printf(" Dev. By: Manoj Pandey.");
gotoxy(15, 15);
printf("MCA 3d Sem.");
getch();
closegraph();
exit(1);
} // end of switch.
GetCords(mat1, mat2, n); // Input of Coordinates.
pointRotate(mat2, n); // Rotating and Displaying.
getch();
} // end of while.
} // end of main.
C++ Graphics – 18 – SHEARING of LINE, TRIANGLE and RECTANGLE w.r.t xy-Axis
December 18, 2009
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SHEARING of LINE, TRIANGLE and RECTANGLE w.r.t xy-Axis.
#include <math.h>
#include <stdio.h>
#include <conio.h>
#include <stdlib.h>
#include <graphics.h>
const int MAX = 5;
const double PI = 3.14;
void GetCords(float mat1[][MAX], float mat2[][MAX], int n){
int i, j;
for(i=0; i<n; i++){
printf("\n Enter Coordinate no %d:- \n", i+1);
for(j=0; j<2; j++){
scanf("%f", &mat1[j][i]);
}
}
for(i=0; i<n; i++){
mat2[0][i] = mat1[0][i];
mat1[0][i] = 320 + mat1[0][i];
mat2[1][i] = mat1[1][i];
mat1[1][i] = 240 - mat1[1][i];
}
setcolor(GREEN);
line(0, 240, 640, 240);
outtextxy(630, 245, "x");
line(320, 0, 320, 480);
outtextxy(310, 0, "y");
outtextxy(280, 245, "(0,0)");
setcolor(YELLOW);
moveto(mat1[0][0], mat1[1][0]);
for(i=0; i<n; i++){
lineto(mat1[0][i], mat1[1][i]);
moveto(mat1[0][i], mat1[1][i]);
}
lineto(mat1[0][0], mat1[1][0]);
}
void xyShearing(float mat2[][MAX], int n){
int i, j, k;
float tmat[MAX][MAX], tot[MAX][MAX];
int sh_x, sh_y;
printf("\n Enter the Searing value w.r.t x: ");
scanf("%d", &sh_x);
printf("\n Enter the Searing value w.r.t y: ");
scanf("%d", &sh_y);
tmat[0][0] = 1;
tmat[0][1] = sh_x;
tmat[1][0] = sh_y;
tmat[1][1] = 1;
for(i=0; i<2; i++){
for(j=0; j<n; j++){
tot[i][j] = 0;
for(k=0; k<2; k++){
tot[i][j] = tot[i][j] + (tmat[i][k] * mat2[k][j]);
}
}
}
for(i=0; i<n; i++){
tot[0][i] = 320 + tot[0][i];
tot[1][i] = 240 - tot[1][i];
}
setcolor(LIGHTRED);
moveto(tot[0][0], tot[1][0]);
for(i=0; i<n; i++){
lineto(tot[0][i], tot[1][i]);
moveto(tot[0][i], tot[1][i]);
}
lineto(tot[0][0], tot[1][0]);
}
void main(){
int gd=DETECT, gm;
initgraph(&gd, &gm,"\\tc");
float mat1[MAX][MAX], mat2[MAX][MAX];
int ch, n;
while(1){
clrscr();
cleardevice();
printf("\n SHEARING w.r.t xy-Axis");
printf("\n ~~~~~~~~~~~~~~~~~~~~~~\n");
printf("\n 1 -> LINE.");
printf("\n 2 -> TRIANGLE.");
printf("\n 3 -> RECTANGLE");
printf("\n 4 -> Exit.");
printf("\n Enter your choice: ");
scanf("%d", &ch);
clrscr();
cleardevice();
switch(ch){
case 1: // LINE.
n=2;
break;
case 2: // TRIANGLE.
n=3;
break;
case 3: // RECTANGLE.
n=4;
break;
default:
gotoxy(10, 10);
printf(" Dev. By: Manoj Pandey.");
gotoxy(15, 15);
printf("MCA 3d Sem.");
getch();
closegraph();
exit(1);
} // end of switch.
GetCords(mat1, mat2, n); // Input of Coordinates.
xyShearing(mat2, n); // Shearing and Displaying.
getch();
} // end of while.
} // end of main.
C++ Graphics – 17 – SHEARING of LINE, TRIANGLE and RECTANGLE w.r.t y-Axis
December 17, 2009
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SHEARING of LINE, TRIANGLE and RECTANGLE w.r.t y-Axis.
#include <math.h>
#include <stdio.h>
#include <conio.h>
#include <stdlib.h>
#include <graphics.h>
const int MAX = 5;
const double PI = 3.14;
void GetCords(float mat1[][MAX], float mat2[][MAX], int n){
int i, j;
for(i=0; i<n; i++){
printf("\n Enter Coordinate no %d:- \n", i+1);
for(j=0; j<2; j++){
scanf("%f", &mat1[j][i]);
}
}
for(i=0; i<n; i++){
mat2[0][i] = mat1[0][i];
mat1[0][i] = 320 + mat1[0][i];
mat2[1][i] = mat1[1][i];
mat1[1][i] = 240 - mat1[1][i];
}
setcolor(GREEN);
line(0, 240, 640, 240);
outtextxy(630, 245, "x");
line(320, 0, 320, 480);
outtextxy(310, 0, "y");
outtextxy(280, 245, "(0,0)");
setcolor(YELLOW);
moveto(mat1[0][0], mat1[1][0]);
for(i=0; i<n; i++){
lineto(mat1[0][i], mat1[1][i]);
moveto(mat1[0][i], mat1[1][i]);
}
lineto(mat1[0][0], mat1[1][0]);
}
void yShearing(float mat2[][MAX], int n){
int i, j, k;
float tmat[MAX][MAX], tot[MAX][MAX];
int sh_y;
printf("\n Enter the Shearing value: ");
scanf("%d", &sh_y);
tmat[0][0] = 1;
tmat[0][1] = 0;
tmat[1][0] = sh_y;
tmat[1][1] = 1;
for(i=0; i<2; i++){
for(j=0; j<n; j++){
tot[i][j] = 0;
for(k=0; k<2; k++){
tot[i][j] = tot[i][j] + (tmat[i][k] * mat2[k][j]);
}
}
}
for(i=0; i<n; i++){
tot[0][i] = 320 + tot[0][i];
tot[1][i] = 240 - tot[1][i];
}
setcolor(LIGHTRED);
moveto(tot[0][0], tot[1][0]);
for(i=0; i<n; i++){
lineto(tot[0][i], tot[1][i]);
moveto(tot[0][i], tot[1][i]);
}
lineto(tot[0][0], tot[1][0]);
}
void main(){
int gd=DETECT, gm;
initgraph(&gd, &gm,"\\tc");
float mat1[MAX][MAX], mat2[MAX][MAX];
int ch, n;
while(1){
clrscr();
cleardevice();
printf("\n SHEARING w.r.t y-Axis");
printf("\n ~~~~~~~~~~~~~~~~~~~~~\n");
printf("\n 1 -> LINE.");
printf("\n 2 -> TRIANGLE.");
printf("\n 3 -> RECTANGLE");
printf("\n 4 -> Exit.");
printf("\n Enter your choice: ");
scanf("%d", &ch);
clrscr();
cleardevice();
switch(ch){
case 1: // LINE.
n=2;
break;
case 2: // TRIANGLE.
n=3;
break;
case 3: // RECTANGLE.
n=4;
break;
default:
gotoxy(10, 10);
printf(" Dev. By: Manoj Pandey.");
gotoxy(15, 15);
printf("MCA 3d Sem.");
getch();
closegraph();
exit(1);
} // end of switch.
GetCords(mat1, mat2, n); // Input of Coordinates.
yShearing(mat2, n); // Shearing and Displaying.
getch();
} // end of while.
} // end of main.
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