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| #include <winbgim.h>
#include <stdio.h>
#include <math.h>
#include <dos.h>
#define defcolour 0
#define PI 3.14159265
#define BLUE 9
#define GREEN 10
#define CYAN 11
#define RED 12
#define MAGENTA 13
#define YELLOW 14
#define WHITE 15
#define BLACK 0
int K = 10000, koef = 1667, center = 250;
float p = 0, q = 0, r = -1/250;
drawfig(float PyramidTrue[3][5], int AngleX, int AngleY, int AngleZ, int figcolor)
{
int flag = 0, i, j, k, t;
float res, XSU, YSU, XSD, YSD, xtemp, xleft, xright, XC, YC, ZC;
float MatrixProj[4][4] = {{1, 0, 0, 0}, {0, 1, 0, 0}, {0, 0, 1, 0}, {p, q, r, 1}};
float MatrixRotX[3][3] = {{1, 0, 0}, {0, cos(AngleX*PI/180), -sin(AngleX*PI/180)}, {0, sin(AngleX*PI/180), cos(AngleX*PI/180)}};
float MartixRotY[3][3] = {{cos(AngleY*PI/180), 0, sin(AngleY*PI/180)}, {0, 1, 0}, {-sin(AngleY*PI/180), 0, cos(AngleY*PI/180)}};
float MartixRotZ[3][3] = {{cos(AngleZ*PI/180), -sin(AngleZ*PI/180), 0}, {sin(AngleZ*PI/180), cos(AngleZ*PI/180), 0}, {0, 0, 1}};
float Proj[4][5];
for (XC = 0, i = 0; i < 5; ++i)
XC += PyramidTrue[0][i];
XC /= 5;
for (YC = 0, i = 0; i < 5; ++i)
YC += PyramidTrue[1][i];
YC /= 5;
for (ZC = 0, i = 0; i < 5; ++i)
ZC += PyramidTrue[2][i];
ZC /= 5;
for (i = 0; i < 5; ++i)
PyramidTrue[0][i] -= XC;
for (i = 0; i < 5; ++i)
PyramidTrue[1][i] -= YC;
for (i = 0; i < 5; ++i)
PyramidTrue[2][i] -= ZC;
for (k = 0; k < 5; ++k)
{
for (i = 0; i < 4; ++i)
{
res = 0;
for (j = 0; j < 4; ++j)
{
res += (MatrixProj[i][j] * PyramidTrue[j][k]);
}
Proj[i][k] = res;
}
for (i = 0; i < 3; ++i)
{
Proj[i][k] /= Proj[3][k];
}
}
for (i = 0; i < 5; ++i)
PyramidTrue[0][i] += XC;
for (i = 0; i < 5; ++i)
PyramidTrue[1][i] += YC;
for (i = 0; i < 5; ++i)
PyramidTrue[2][i] += ZC;
for (k = 0; k < 5; ++k)
{
for (i = 0; i < 3; ++i)
{
res = 0;
for (j = 0; j < 3; ++j)
{
res += (MatrixRotX[i][j] * Proj[j][k]);
}
Proj[i][k] = res;
}
}
for (k = 0; k < 5; ++k)
{
for (i = 0; i < 3; ++i)
{
res = 0;
for (j = 0; j < 3; ++j)
{
res += (MartixRotY[i][j] * Proj[j][k]);
}
Proj[i][k] = res;
}
}
for (k = 0; k < 5; ++k)
{
for (i = 0; i < 3; ++i)
{
res = 0;
for (j = 0; j < 3; ++j)
{
res += (MartixRotZ[i][j] * Proj[j][k]);
}
Proj[i][k] = res;
}
}
for (i = 0; i < 5; ++i)
Proj[0][i] += XC;
for (i = 0; i < 5; ++i)
Proj[1][i] += YC;
for (i = 0; i < 5; ++i)
Proj[2][i] += ZC;
setcolor(BLUE);
for (i = 0, j = 1, k = 0; k < 8; ++k, ++i, ++j)
{
if (i == 5)
--i;
if (j == 4)
j = 0;
if (k == 4)
--j;
line (Proj[0][i], Proj[1][i], Proj[0][j], Proj[1][j]);
}
setcolor(WHITE);
circle(XC,YC,5);
}
main(int argc, char *argv[])
{
int i, j, angleX = 0, angleY = 0, angleZ = 0;
char ch,excolor;
float Pyramid[4][5] = {{10, 50, 50, 10, 30}, {10, 10, 50, 50, 30}, {10, 10, 10, 10, 50}, {1, 1, 1, 1, 1}};
initwindow(500, 500);
setbkcolor(defcolour);
excolor = BLUE;
printf("WASD - up, left, down, right\nRF - rotation X cw, ccw\nTG - rotation Y cw, ccw\nYH - rotation Z cw, ccw\nQE - scale in, scale out\n");
while(1)
{
cleardevice();
drawfig(Pyramid, angleX, angleY, angleZ, CYAN);
ch = getch();
if(ch == 'r')
{
angleX++;
}
if(ch == 'f')
{
angleX--;
}
if(ch == 't')
{
angleY++;
}
if(ch == 'g')
{
angleY--;
}
if(ch == 'y')
{
angleZ++;
}
if(ch == 'h')
{
angleZ--;
}
if (ch == 'q')
{
for (i = 0; i < 3; ++i)
{
for (j = 0; j < 5; ++j)
Pyramid[i][j] *= 1.01;
}
}
if (ch == 'e')
{
for (i = 0; i < 3; ++i)
{
for (j = 0; j < 5; ++j)
Pyramid[i][j] *= 1/1.01;
}
}
if(ch == 'd')
{
for (i = 0; i < 5; ++i)
{
++Pyramid[0][i];
}
}
if(ch == 'a')
{
for (i = 0; i < 5; ++i)
{
--Pyramid[0][i];
}
}
if(ch == 's')
{
for (i = 0; i < 5; ++i)
{
++Pyramid[1][i];
}
}
if(ch == 'w')
{
for (i = 0; i < 5; ++i)
{
--Pyramid[1][i];
}
}
}
} |
(
