void getRotationMatrixFromOrientation(double out[9], double orientation[3])
{
double xM[9];
double yM[9];
double zM[9];
double sinX = sin(orientation[1]);
double cosX = cos(orientation[1]);
double sinY = sin(orientation[2]);
double cosY = cos(orientation[2]);
double sinZ = sin(orientation[0]);
double cosZ = cos(orientation[0]);
// rotation about x-axis (pitch)
xM[0] = 1.0f; xM[1] = 0.0f; xM[2] = 0.0f;
xM[3] = 0.0f; xM[4] = cosX; xM[5] = sinX;
xM[6] = 0.0f; xM[7] = -sinX; xM[8] = cosX;
// rotation about y-axis (roll)
yM[0] = cosY; yM[1] = 0.0f; yM[2] = sinY;
yM[3] = 0.0f; yM[4] = 1.0f; yM[5] = 0.0f;
yM[6] = -sinY; yM[7] = 0.0f; yM[8] = cosY;
// rotation about z-axis (azimuth)
zM[0] = cosZ; zM[1] = sinZ; zM[2] = 0.0f;
zM[3] = -sinZ; zM[4] = cosZ; zM[5] = 0.0f;
zM[6] = 0.0f; zM[7] = 0.0f; zM[8] = 1.0f;
// rotation order is y, x, z (roll, pitch, azimuth)
matrixMultiplication(out, xM, yM);
matrixMultiplication(out, zM, out);
}
/** From http://www.thousand-thoughts.com/2012/03/android-sensor-fusion-tutorial/2/
* Should be optimized ... */
void getRotationMatrixFromOrientation(float* orientation, float* result)
{
float xM[9];
float yM[9];
float zM[9];
float sinX = (float)qSin(orientation[1]);
float cosX = (float)qCos(orientation[1]);
float sinY = (float)qSin(orientation[2]);
float cosY = (float)qCos(orientation[2]);
float sinZ = (float)qSin(orientation[0]);
float cosZ = (float)qCos(orientation[0]);
// rotation about x-axis (pitch)
xM[0] = 1.0f; xM[1] = 0.0f; xM[2] = 0.0f;
xM[3] = 0.0f; xM[4] = cosX; xM[5] = sinX;
xM[6] = 0.0f; xM[7] = -sinX; xM[8] = cosX;
// rotation about y-axis (roll)
yM[0] = cosY; yM[1] = 0.0f; yM[2] = sinY;
yM[3] = 0.0f; yM[4] = 1.0f; yM[5] = 0.0f;
yM[6] = -sinY; yM[7] = 0.0f; yM[8] = cosY;
// rotation about z-axis (azimuth)
zM[0] = cosZ; zM[1] = sinZ; zM[2] = 0.0f;
zM[3] = -sinZ; zM[4] = cosZ; zM[5] = 0.0f;
zM[6] = 0.0f; zM[7] = 0.0f; zM[8] = 1.0f;
// rotation order is y, x, z (roll, pitch, azimuth)
float temp[9];
matrixMultiplication(xM, yM, temp);
matrixMultiplication(zM, temp, result);
}
/// Computes lighting for the entire scene
void computeLighting()
{
for (auto &ridge : mountains)
{
for (int i=0; i < ridge.meshVertices.size(); i = i+3)
{
// Compute for our (single) light
Vec3Df vertexpos = Vec3Df(ridge.meshVertices[i],
ridge.meshVertices[i+1],
ridge.meshVertices[i+2]);
Vec3Df normal = Vec3Df(ridge.meshNormals[i],
ridge.meshNormals[i+1],
ridge.meshNormals[i+2]);
Vec3Df lighting = computeLighting(vertexpos, normal, DIFFUSE_LIGHTING);
// Pass computed values to Ridge
ridge.meshColors[i] = lighting[0];
ridge.meshColors[i+1] = lighting[1];
ridge.meshColors[i+2] = lighting[2];
}
}
if (toggleBoss) {
std::vector<Vertex> vertices = boss.getMesh().vertices;
std::vector<Vec3Df> meshColors = std::vector<Vec3Df>(vertices.size());
auto rotMat = matrixMultiplication(
rotateMatrixY(boss.angleHeadY*M_PI / 180),
rotateMatrixX(boss.angleHeadZ*M_PI / 180)
);
for (int i = 0; i < vertices.size(); i++)
{
// Compute for our (single) light
Vertex vertex = vertices[i];
Vec3Df vec = vertex.p;
vec = calculateMatrix(rotMat, vec);
vec = vec + boss.translation;
vec = vec * boss.scale;
vec = vec + boss.position;
Vec3Df nor = vertex.n;
nor = calculateMatrix(rotMat, nor);
nor = nor + boss.translation;
nor = nor * boss.scale;
nor = nor + boss.position;
Vec3Df lighting = computeLighting(vec, nor, PHONG_LIGHTNING);
meshColors[i] = lighting;
}
boss.getMesh().meshColor = meshColors;
}
}
// This function performs the integration of the gyroscope data.
// It writes the gyroscope based orientation into gyroOrientation.
void gyroFunction(void)
{
//static double NS2S = 1.0f / 1000000000.0f;
//double timestamp;
// don't start until first accelerometer/magnetometer orientation has been acquired
//if (accMagOrientation == null)
//return;
// initialisation of the gyroscope based rotation matrix
static bool initState = true;
if (initState) {
double initMatrix[9];
getRotationMatrixFromOrientation(initMatrix, accMagOrientation);
double test[3];
getOrientation(test, initMatrix);
matrixMultiplication(gyroMatrix, gyroMatrix, initMatrix);
initState = false;
}
// copy the new gyro values into the gyro array
// convert the raw gyro data into a rotation vector
double deltaVector[4];
//const double dT = (timer_systime() - timestamp) * NS2S;
//System.arraycopy(event.values, 0, gyro, 0, 3);
getRotationVectorFromGyro(deltaVector, G_Dt);
// measurement done, save current time for next interval
//timestamp = timer_systime();
// convert rotation vector into rotation matrix
double deltaMatrix[9];
getRotationMatrixFromVector(deltaMatrix, deltaVector);
// apply the new rotation interval on the gyroscope based rotation matrix
matrixMultiplication(gyroMatrix, gyroMatrix, deltaMatrix);
// get the gyroscope based orientation from the rotation matrix
getOrientation(gyroMatrix, gyroOrientation);
}
void compute()
{
int i, j;
float angle;
float **pt, **tmp;
/* pt is 1 by 3 */
pt = (float**)mxCalloc(1,sizeof(*pt));
for( i = 0; i < 1; ++i )
{
pt[i] = (float*)mxCalloc(3,sizeof(**pt));
}
/* tmp is 1 by 3 */
tmp = (float**)mxCalloc(1,sizeof(*tmp));
for( i = 0; i < 1; ++i )
{
tmp[i] = (float*)mxCalloc(3,sizeof(**tmp));
}
/* set the transformation matrix */
A1 = (float**)mxCalloc(3,sizeof(*A1));
for( i = 0; i < 3; ++i )
{
A1[i] = (float*)mxCalloc(3,sizeof(**A1));
}
A2 = (float**)mxCalloc(3,sizeof(*A2));
for( i = 0; i < 3; ++i )
{
A2[i] = (float*)mxCalloc(3,sizeof(**A2));
}
for( i = 0; i < 3; ++i )
for( j = 0; j < 3; ++j )
{
A1[i][j] = 0;
A2[i][j] = 0;
}
A1[0][0] = cScale * pow( (double)2, (double)(tScale/2) );
A1[1][1] = rScale * pow( (double)2, (double)(tScale/2) );
angle = rotation * PI/nOri;
A2[0][0] = cos(angle);
A2[0][1] = sin(angle);
A2[1][0] = -A2[0][1];
A2[1][1] = A2[0][0];
for( i = 0; i < nElement; ++i )
{
tmp[0][0] = inCol[i];
tmp[0][1] = -inRow[i];
tmp[0][2] = 1;
matrixMultiplication(1,3,tmp,3,A1,pt);
tmp[0][0] = pt[0][0];
tmp[0][1] = pt[0][1];
tmp[0][2] = pt[0][2];
matrixMultiplication(1,3,tmp,3,A2,pt);
outCol[i] = ROUND( pt[0][0] );
outRow[i] = ROUND( -pt[0][1] );
outO[i] = inO[i] + rotation;
outS[i] = inS[i] + tScale;
/*
while( outO[i] < 0 )
outO[i] = outO[i] + nOri;
while( outO[i] >= nOri )
outO[i] = outO[i] - nOri;
*/
}
}
/*!
* This sub-routine computes the velocity vector, given a magnitude, a unit normal vector from the
* point on the surface where the regolith is lofted from, and the two conic angles which describe
* the velocity vector's direction relative to the normal vector. A backwards approach is used
* to go from the velocity vector in the final rotated intermediate frame back to the body fixed
* frame. More details are given in the thesis report and author's personal notes.
*
*/
void computeRegolithVelocityVector( std::vector< double > regolithPositionVector,
const double velocityMagnitude,
const double coneAngleAzimuth,
const double coneAngleDeclination,
std::vector< double > &unitNormalVector,
std::vector< double > ®olithVelocityVector )
{
// form the velocity vector, assuming that the intermediate frame's z-axis, on the surface of
// the asteroid, is along the final velocity vector
regolithVelocityVector[ 0 ] = 0.0;
regolithVelocityVector[ 1 ] = 0.0;
regolithVelocityVector[ 2 ] = velocityMagnitude;
// get the rotatin matrix to go from the rotated intermediate frame back to the initial
// frame where the z-axis was along the normal axis and the x-axis was pointing towards north
// direction
std::vector< std::vector< double > > zBasicRotationMatrix
{ { std::cos( coneAngleAzimuth ), std::sin( coneAngleAzimuth ), 0.0 },
{ -std::sin( coneAngleAzimuth ), std::cos( coneAngleAzimuth ), 0.0 },
{ 0.0, 0.0, 1.0 } };
std::vector< std::vector< double > > yBasicRotationMatrix
{ { std::cos( coneAngleDeclination ), 0.0, -std::sin( coneAngleDeclination ) },
{ 0.0, 1.0, 0.0 },
{ std::sin( coneAngleDeclination ), 0.0, std::cos( coneAngleDeclination ) } };
std::vector< std::vector< double > > nonTransposedRotationMatrix( 3, std::vector< double > ( 3 ) );
matrixMultiplication( yBasicRotationMatrix,
zBasicRotationMatrix,
nonTransposedRotationMatrix,
3,
3,
3,
3 );
std::vector< std::vector< double > > intermediateFrameRotationMatrix( 3, std::vector< double > ( 3 ) );
matrixTranspose( nonTransposedRotationMatrix, intermediateFrameRotationMatrix );
std::vector< std::vector< double > > rotatedIntermediateFrameVelocityVector
{ { regolithVelocityVector[ 0 ] },
{ regolithVelocityVector[ 1 ] },
{ regolithVelocityVector[ 2 ] } };
std::vector< std::vector< double > > intermediateFrameVelocityVector( 3, std::vector< double > ( 1 ) );
matrixMultiplication( intermediateFrameRotationMatrix,
rotatedIntermediateFrameVelocityVector,
intermediateFrameVelocityVector,
3,
3,
3,
1 );
// now obtain the basis vectors for the intermediate frame expressed in the
// body fixed frame coordinates
std::vector< double > xUnitVector( 3 );
std::vector< double > yUnitVector( 3 );
std::vector< double > zUnitVector( 3 );
zUnitVector = unitNormalVector;
std::vector< double > bodyFrameZUnitVector { 0.0, 0.0, 1.0 };
// get the intermediate RTN frame at the surface point
std::vector< double > unitR = normalize( regolithPositionVector );
std::vector< double > unitT = normalize( crossProduct( unitR, bodyFrameZUnitVector ) );
// get the x basis vector, pointing to north
xUnitVector = normalize( crossProduct( unitT, zUnitVector ) );
// get the y basis vector
yUnitVector = normalize( crossProduct( zUnitVector, xUnitVector ) );
std::vector< double > zPrincipalAxisBodyFrame { 0.0, 0.0, 1.0 };
std::vector< double > zNegativePrincipalAxisBodyFrame { 0.0, 0.0, -1.0 };
// check if the position vector is along the poles
const double positionDotPrincipalZ
= dotProduct( normalize( regolithPositionVector ), zPrincipalAxisBodyFrame );
const double positionDotNegativePrincipalZ
= dotProduct( normalize( regolithPositionVector ), zNegativePrincipalAxisBodyFrame );
if( positionDotPrincipalZ == 1.0 )
{
// the position vector is pointing to the poles, hence x basis vector pointing to the north
// direction wouldn't work
xUnitVector = { 1.0, 0.0, 0.0 };
yUnitVector = { 0.0, 1.0, 0.0 };
}
else if( positionDotNegativePrincipalZ == 1.0 )
{
xUnitVector = { -1.0, 0.0, 0.0 };
yUnitVector = { 0.0, 1.0, 0.0 };
}
// put the basis vectors in a 3x3 matrix
std::vector< std::vector< double > > intermediateFrameBasisMatrix
{ { xUnitVector[ 0 ], yUnitVector[ 0 ], zUnitVector[ 0 ] },
{ xUnitVector[ 1 ], yUnitVector[ 1 ], zUnitVector[ 1 ] },
{ xUnitVector[ 2 ], yUnitVector[ 2 ], zUnitVector[ 2 ] } };
std::vector< std::vector< double > > bodyFrameVelocityVector( 3, std::vector< double >( 1 ) );
matrixMultiplication( intermediateFrameBasisMatrix,
intermediateFrameVelocityVector,
bodyFrameVelocityVector,
3,
3,
3,
1 );
// return the final regolith velocity vector, expressed in body frame coordinates
regolithVelocityVector[ 0 ] = bodyFrameVelocityVector[ 0 ][ 0 ];
regolithVelocityVector[ 1 ] = bodyFrameVelocityVector[ 1 ][ 0 ];
regolithVelocityVector[ 2 ] = bodyFrameVelocityVector[ 2 ][ 0 ];
}
int main(int argc, char **argv){
//LOCAL VARIABLE DEF BLOCK===========================================
image_ptr imagePtr;
float subimg[sis][sis]; //space for subimage
int rows, cols, type;
int i, j, k, u, v, count; //counter variables
int offset; //to keep track of values put into subImagePtr
float scale; //to calcule img size
int rowsize;
int rowblock, colblock, totalblock; //number of sub blocks needed for image
//float Z[1000000]; //this will be the compressed image
unsigned char writeme[1000000]; //this is the unsigned char to write to file
unsigned char childOut[100000]; //this is the unsigned char used for child output
//int zc = 0; //counter for Z
int wc = 0; //counter for writeme
int dir; //direction of zig zag 0 = down 1 = up
int zeros = 0; //holds the number of zeros for "percent zeros" calculation
int total = 0; //total number of bits used in "percent zeros" calculation
int tmp; //used in float to unsigned char conversion
int numOfChildren = 0;
int childBlock = 0;
//arrays for math
float C[sis][sis] = {
{0.3536, 0.3536, 0.3536, 0.3536, 0.3536, 0.3536, 0.3536, 0.3536},
{0.4904, 0.4157, 0.2778, 0.0975, -0.0975, -0.2778, -0.4157, -0.4904},
{0.4619, 0.1913, -0.1913, -0.4619, -0.4619, -0.1913, 0.1913, 0.4619},
{0.4157, -0.0975, -0.4904, -0.2778, 0.2778, 0.4904, 0.0975, -0.4157},
{0.3536, -0.3536, -0.3536, 0.3536, 0.3536, -0.3536, -0.3536, 0.3536},
{0.2778, -0.4904, 0.0975, 0.4157, -0.4157, -0.0975, 0.4904, -0.2778},
{0.1913, -0.4619, 0.4619, -0.1913, -0.1913, 0.4619, -0.4619, 0.1913},
{0.0975, -0.2778, 0.4157, -0.4904, 0.4904, -0.4157, 0.2778, -0.0975}};
float CT[sis][sis] = {
{0.3536, 0.4904, 0.4619, 0.4157, 0.3536, 0.2778, 0.1913, 0.0975},
{0.3536, 0.4157, 0.1913, -0.0975, -0.3536, -0.4904, -0.4619, -0.2778},
{0.3536, 0.2778, -0.1913, -0.4904, -0.3536, 0.0975, 0.4619, 0.4157},
{0.3536, 0.0975, -0.4619, -0.2778, 0.3536, 0.4157, -0.1913, -0.4904},
{0.3536, -0.0975, -0.4619, 0.2778, 0.3536, -0.4157, -0.1913, 0.4904},
{0.3536, -0.2778, -0.1913, 0.4904, -0.3536, -0.0975, 0.4619, -0.4157},
{0.3536, -0.4157, 0.1913, 0.0975, -0.3536, 0.4904, -0.4619, 0.2778},
{0.3536, -0.4904, 0.4619, -0.4157, 0.3536, -0.2778, 0.1913, -0.0975}};
//same for array Q
float Q[sis][sis] = {
{8, 16, 24, 32, 40, 48, 56, 64},
{16, 24, 32, 40, 48, 56, 64, 72},
{24, 32, 40, 48, 56, 64, 72, 80},
{32, 40, 48, 56, 64, 72, 80, 88},
{40, 48, 56, 64, 72, 80, 88, 96},
{48, 56, 64, 72, 80, 88, 96, 104},
{56, 64, 72, 80, 88, 95, 104, 112},
{64, 72, 80, 88, 96, 104, 112, 120}};
float q[sis][sis];
for (i = 0; i < 8; i++){
for (j = 0; j < 8; j++){
q[i][j] = Q[i][j];
}
}
//GET COMMAND LINE INPUTS===========================================
if (argc != 5){
printf("wrong inputs: use %s imageIn.ppm imageOut.enc q p\n", argv[0]);
return 0;
}
//READ INPUT IMAGE==================================================
printf("Reading input image. . . \n");
imagePtr = read_pnm(argv[1], &rows, &cols, &type);
printf("Image read successfully\n");
printf("rows=%d, cols=%d, type=%d \n", rows, cols, type);
int tb; //total blocks to be processed
int cb = 0; //current block
int g; //counter
tb = (rows / sis) * (cols / sis);
//Place image into 2D array
unsigned char myImg[rows][cols];
for (i = 0; i < rows; i++){
for (j = 0; j < cols; j++){
myImg[i][j] = imagePtr[i*cols+j];
}
}
//set q array to propperly scaled value, based on input
int qin;
qin = atoi(argv[3]);
intTimesMatrix(q, qin);
// clip q to be between 0 and 255
for (u = 0; u < sis; u++){
for (v = 0; v < sis; v++){
if (q[u][v] > 254)
q[u][v] = 254;
}
}
//get p
int p;
p = atoi(argv[4]);
//create tmp variables for preforming math operations
float CX[sis][sis];
float Y[sis][sis];
int r, c;
//get row and col characters - assumes that image is smaller than 1000x1000
int row1, row2, row3;
int col1, col2, col3;
row1 = rows / 100;
row2 = (rows - (row1 * 100)) / 10;
row3 = (rows - (row1 * 100)) - (row2 * 10);
col1 = cols / 100;
col2 = (cols - col1 * 100) / 10;
col3 = (cols - col1 * 100) - col2 * 10;
//build header
writeme[wc++] = row1 + '0';
writeme[wc++] = row2 + '0';
writeme[wc++] = row3 + '0';
writeme[wc++] = '$'; //end of block character
writeme[wc++] = col1 + '0';
writeme[wc++] = col2 + '0';
writeme[wc++] = col3 + '0';
writeme[wc++] = '$';
writeme[wc++] = '8';
writeme[wc++] = '$';
writeme[wc++] = '8';
writeme[wc++] = '$';
writeme[wc++] = qin + '0';
writeme[wc++] = '$';
writeme[wc++] = '0';
writeme[wc++] = '0';
writeme[wc++] = '$';
//create placeholder to put estimated size in later
for (i = 0; i < 7; i++){
writeme[wc++] = '0';
}
writeme[wc++] = '$';
//STEP THROUGH INPUT IMAGE===========================================
int makepipes;
float tm;
int mt;
int pipefds[2*p];
int pid;
for (i = 0; i < rows; i = i + 8){
for (j = 0; j < cols; j = j + 8){
for (u = 0; u < sis; u++){
for (v = 0; v < sis; v++){
//cast to float to make math operations possible and level off for proper DCT values
mt = (int) myImg[i+u][j+v];
tm = (float) mt;
subimg[u][v] = tm - 128;
//make sure Y and CX are clear
Y[u][v] = 0;
CX[u][v] = 0;
}
}
cb++; //increment current block
if (numOfChildren == 0){
//build all necessary pipes
if (tb - cb < p){
//only make amount of pipes necessary
makepipes = tb - cb + 1;
} else {
makepipes = p;
}
for (g = 0; g < makepipes; g++){
if (pipe(pipefds + g*2) < 0){
perror("Pipe");
exit(1);
}
}
}
numOfChildren++;
if ((pid = fork()) == 0){
//zero means child
//Perform first step of matrix multiplication CX = C*subimg
matrixMultiplication(C, subimg, CX);
//Perform second step of matrix multiplication Y = CX*CT
matrixMultiplication(CX, CT, Y);
//quantize Y by dividing element by element with q
eleByEleMatrixDiv(Y, q);
//undo the (-128)
for (u = 0; u < sis; u++){
for (v = 0; v < sis; v++){
Y[u][v] = Y[u][v] + 128;
}
}
//preform zig zag on Y, sore flat result in Z
r = 0; //current row
c = 0; //current col
count = 0;
dir = 0;
//loop to preform zig zagging
while (count < 64){
if (Y[r][c] < 128.4 && Y[r][c] > 127.5){
//count zeros
zeros = (64 - count); //should probably just send this back to the parent
//REMEMBER TO ADD ZEROS BACK TOGETHER WHEN READING BACK IN
total = 64;
//AND ADD TOTAL
break;
}
if (r == 0 && c < 7){
tmp = (int) Y[r][c];
childOut[count++] = (unsigned char) tmp;
c++;
if (Y[r][c] < 128.4 && Y[r][c] > 127.5){
zeros = (64 - count);
total = 64;
break;
}
tmp = (int) Y[r][c];
childOut[count++] = (unsigned char) tmp;
c--; r++;
dir = 0;
} else if (c == 0 && r < 7){
tmp = (int) Y[r][c];
childOut[count++] = (unsigned char) tmp;
r++;
if (Y[r][c] < 128.4 && Y[r][c] > 127.5){
zeros = (64 - count);
total = 64;
break;
}
tmp = (int) Y[r][c];
childOut[count++] = (unsigned char) tmp;
r--; c++;
dir = 1;
} else if ( r == 7){
tmp = (int) Y[r][c];
childOut[count++] = (unsigned char) tmp;
c++;
if (Y[r][c] < 128.4 && Y[r][c] > 127.5){
//count zeros
zeros = (64 - count);
total = 64;
break;
}
tmp = (int) Y[r][c];
childOut[count++] = (unsigned char) tmp;
c++; r--;
dir = 1;
} else if ( c == 7){
tmp = (int) Y[r][c];
childOut[count++] = (unsigned char) tmp;
r++;
if (Y[r][c] < 128.4 && Y[r][c] > 127.5){
//count zeros
zeros = (64 - count);
total = 64;
break;
}
tmp = (int) Y[r][c];
childOut[count++] = (unsigned char) tmp;
r++; c--;
dir = 0;
} else if (dir == 0){
tmp = (int) Y[r][c];
childOut[count++] = (unsigned char) tmp;
c--; r++;
} else if (dir == 1){
tmp = (int) Y[r][c];
childOut[count++] = (unsigned char) tmp;
c++; r--;
}
}
childOut[count++] = '$';
//need to add in percent zeros and block position
//actually might not need to worry about positioning (use pipes to keep track)
unsigned char results[count];
for (g = 0; g < count; g++){
results[g] = childOut[g];
}
//return data
//could add several '$' to mark end of transmitted data
write(pipefds[(numOfChildren-1)*2+1], results, sizeof(results));
//kill child
exit(0);
} else if (pid == -1) {
//fork error
printf("Fork error\n");
exit(1);
} else {
//this is the parent
if (numOfChildren >= makepipes){
//this means all children are made, need to get results
//not sure how to make sure they are all finished or not?
//wonder if it waits for something to be written?
unsigned char tmpin[100];
//get data
for (g = 0; g < makepipes; g++){
read(pipefds[2*g], tmpin, sizeof(tmpin));
int h = 0;
while (tmpin[h] != '$'){
writeme[wc++] = tmpin[h++];
if (h > 99){
printf("something probably went wrong");
break;
}
}
writeme[wc++] = '$';
//h is going to be equivilent to (64 - zeros)
zeros = zeros + (64 - h);
total = total + 64;
}
//close pipes
for (g = 0; g < 2 * makepipes; g++){
close(pipefds[g]);
}
// all children should be dead at this point
numOfChildren = 0;
}
}
}
}
//change percent zeros in write me
float pz;
printf("This is total: %d\n", total);
printf("This is zeros: %d\n", zeros);
pz = (float) zeros / total;
printf("Percent Zeros: %f\n", pz);
pz = (int) (pz * 100);
int pz1;
pz1 = pz / 10;
int pz2;
pz2 = pz - pz1 * 10;
writeme[14] = pz1 + '0';
writeme[15] = pz2 + '0';
//change estimated size
//estimated size is zc, so get each element then plug into Z[17 - 24]
int zc1, zc2, zc3, zc4, zc5, zc6, zc7;
zc1 = wc / 1000000;
zc2 = (wc - zc1 * 1000000) / 100000;
zc3 = (wc - zc1 * 1000000 - zc2 * 100000) / 10000;
zc4 = (wc - zc1 * 1000000 - zc2 * 100000 - zc3 * 10000) / 1000;
zc5 = (wc - zc1 * 1000000 - zc2 * 100000 - zc3 * 10000 - zc4 * 1000) / 100;
zc6 = (wc - zc1 * 1000000 - zc2 * 100000 - zc3 * 10000 - zc4 * 1000 - zc5 * 100) / 10;
zc7 = (wc - zc1 * 1000000 - zc2 * 100000 - zc3 * 10000 - zc4 * 1000 - zc5 * 100 - zc6 * 10);
writeme[17] = zc1 + '0';
writeme[18] = zc2 + '0';
writeme[19] = zc3 + '0';
writeme[20] = zc4 + '0';
writeme[21] = zc5 + '0';
writeme[22] = zc6 + '0';
writeme[23] = zc7 + '0';
//write file
FILE *f = fopen(argv[2], "w");
if (f == NULL){
printf("Error opening file\n");
return 0;
}
for (i = 0; i < wc; i++){
fprintf(f, "%c", writeme[i]);
}
fclose(f);
}
