本文整理汇总了C++中params::ivalue方法的典型用法代码示例。如果您正苦于以下问题：C++ params::ivalue方法的具体用法？C++ params::ivalue怎么用？C++ params::ivalue使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类params的用法示例。
在下文中一共展示了params::ivalue方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: output_geotiff
void output_geotiff ( rgb_image & out )
{
int i, r, c;
int val;
char s[2];
OGRSpatialReference ref;
GDALDataset *df;
char *wkt = NULL;
GDALRasterBand *bd;
double trans[6];
GDALDriver *gt;
char **options = NULL;
int ov[] = { 2, 4, 8, 16, 32 };
int nov;
int n;
int bands[] = { 1, 2, 3 };
char file[1000];
int block, ir, rows;
options = CSLSetNameValue ( options, "TILED", "NO" );
options = CSLSetNameValue ( options, "BLOCKXSIZE", "256" );
options = CSLSetNameValue ( options, "BLOCKYSIZE", "256" );
options = CSLSetNameValue ( options, "COMPRESS", "LZW" );
gt = GetGDALDriverManager()->GetDriverByName("GTiff");
if ( !gt ) {
fprintf(stderr,"Could not get GTiff driver\n");
exit(1);
}
strcpy ( file, p.value("output_file").c_str() );
df = gt->Create( file, out.cols, out.rows, 3, GDT_Byte, options );
if( df == NULL ) {
fprintf(stderr,"Could not create %s\n", file );
exit(1);
}
trans[0] = p.dvalue("easting_left");
trans[1] = p.dvalue("output_cell_size");
trans[2] = 0.0;
trans[3] = p.dvalue("northing_top");
trans[4] = 0.0;
trans[5] = -p.dvalue("output_cell_size");
df->SetGeoTransform ( trans );
ref.SetUTM ( p.ivalue("utm_zone") );
ref.SetWellKnownGeogCS ( "NAD27" );
ref.exportToWkt ( &wkt );
df->SetProjection(wkt);
CPLFree ( wkt );
for ( ir = 0; ir < out.rows; ir += bs ) {
rows = out.rows - ir;
if ( rows > bs ) rows = bs;
//printf("Writer waiting for %d\n",ir );
pe.wait_for("data",ir);
for ( i = 0; i < 3; i++ ) {
bd = df->GetRasterBand(i+1);
bd->RasterIO( GF_Write, 0, ir, out.cols, rows,
out.img[i].data+ir*out.cols,
out.cols, rows, GDT_Byte, 0, 0 );
}
}
delete df;
df = (GDALDataset *)GDALOpen ( file, GA_Update );
if( df == NULL ) {
fprintf(stderr,"Could not open for update %s\n", file );
exit(1);
}
nov = p.ivalue("overviews");
if ( nov > 5 ) nov = 5;
if ( nov > 0 ) {
df->BuildOverviews("NEAREST", nov, ov, 3, bands, NULL, NULL );
}
}示例2: main
int main ( int argc, char **argv )
{
int i, j, n, pid, t;
double pix;
double ir, ic;
int req, task, value;
char task_name[16];
log_start();
if ( argc < 2 ) {
fprintf(stderr,"Usage: %s param_file\n", argv[0]);
exit(1);
}
pe.mq = msgget ( getpid(), 0777|IPC_CREAT );
set_defaults();
p.read_file(argv[1]);
GDALAllRegister();
east1 = p.dvalue("easting_left");
east2 = p.dvalue("easting_right");
north1 = p.dvalue("northing_bottom");
north2 = p.dvalue("northing_top");
wid = p.dvalue("output_cell_size");
pix = p.dvalue("input_cell_size");
ir = p.dvalue("input_rows");
ic = p.dvalue("input_columns");
input_rows = (int)ir;
input_cols = (int)ic;
max_dist = 1.2 * pix * sqrt(ir*ir+ic*ic) / wid;
max_dist_2 = max_dist/2;
max_dist = max_dist * max_dist;
readers = p.ivalue("readers");
mappers = p.ivalue("mappers");
writers = p.ivalue("writers");
rows = int((north2 - north1) / wid);
cols = int((east2 - east1) / wid);
cindex = new int[cols];
dist.create(rows,cols);
img.create(rows,cols);
srand(time(NULL));
read_image_file(img);
fill ( img, dist, 0, rows );
//spread_dist ( img, dist );
//if ( p.value("dist_file") != "" ) output_dist_geotiff ( dist, v );
//if ( p.value("blob_file") != "" ) output_pcolor_geotiff ( img, dist, v );
sort ( img_indices, img_indices+img_ct, comp_row );
valid_img = new int[max_img_id];
for ( i = 0; i < img_ct; i++ ) {
j = img_indices[i];
valid_img[j] = 0;
if ( xy[j][0]+max_dist_2 >= 0 && xy[j][0]-max_dist_2 < rows ) {
pe.add_task ( "image", j );
}
}
read_dem_header(dem);
pe.launch ( dem_reader );
out.create_image(rows,cols);
for ( i = 0; i < out.rows; i += bs ) pe.add_task ( "mapper", i );
for ( i = 0; i < readers; i++ ) {
pe.launch ( reader );
}
for ( i = 0; i < mappers; i++ ) {
pe.launch ( mapper );
}
for ( i = 0; i < writers; i++ ) {
pe.launch ( writer );
}
while ( pe.children > 0 ) {
t = msgrcv ( pe.mq, &pe.msg, MSG_SIZE, 1, 0 );
if ( t < 0 ) perror("");
sscanf(pe.msg.s,"%d %d %s %d", &req, &pid, task_name, &value );
switch ( req ) {
case EXIT:
log("exit %d",pid);
pe.children--;
break;
case WAIT:
if ( pe.ready(task_name,value) ) {
sprintf(pe.msg.s,"1");
pe.msg.t = pid;
//printf("Sending %d task %d\n",pid,task);
log("wait %d %s %d",pid,task_name,value);
t = msgsnd ( pe.mq, &pe.msg, MSG_SIZE, 0 );
} else {
log("sleep %d %s %d",pid,task_name,value);
pe.enqueue ( task_name, value, pid );
//.........这里部分代码省略.........
示例3: output_dist_geotiff
void output_dist_geotiff ( image<float> & dist, image<unsigned char> & v )
{
int r, c;
int val;
OGRSpatialReference ref;
GDALDataset *df;
char *wkt = NULL;
GDALRasterBand *bd;
double trans[6];
GDALDriver *gt;
char **options = NULL;
int ov[] = { 2, 4, 8, 16, 32 };
int nov;
int n;
char file[1000];
options = CSLSetNameValue ( options, "TILED", "NO" );
options = CSLSetNameValue ( options, "COMPRESS", "LZW" );
gt = GetGDALDriverManager()->GetDriverByName("GTiff");
if ( !gt ) {
fprintf(stderr,"Could not get GTiff driver\n");
exit(1);
}
strcpy ( file, p.value("dist_file").c_str() );
df = gt->Create( file, dist.cols, dist.rows, 1, GDT_Byte, options );
if( df == NULL ) {
fprintf(stderr,"Could not create %s\n", file );
exit(1);
}
trans[0] = p.dvalue("easting_left");
trans[1] = p.dvalue("output_cell_size");
trans[2] = 0.0;
trans[3] = p.dvalue("northing_top");
trans[4] = 0.0;
trans[5] = -p.dvalue("output_cell_size");
df->SetGeoTransform ( trans );
ref.SetUTM ( p.ivalue("utm_zone") );
ref.SetWellKnownGeogCS ( "NAD27" );
ref.exportToWkt ( &wkt );
df->SetProjection(wkt);
CPLFree ( wkt );
for ( r=0; r < dist.rows; r++ ) {
for ( c=0; c < dist.cols; c++ ) {
val = int(sqrt(dist[r][c])+0.5);
if ( val > 255 ) val = 255;
v[r][c] = val;
}
}
bd = df->GetRasterBand(1);
bd->RasterIO( GF_Write, 0, 0, v.cols, v.rows, v.data,
v.cols, v.rows, GDT_Byte, 0, 0 );
delete df;
df = (GDALDataset *)GDALOpen ( file, GA_Update );
if( df == NULL ) {
fprintf(stderr,"Could not open for update %s\n", file );
exit(1);
}
nov = p.ivalue("overviews");
if ( nov > 5 ) nov = 5;
if ( nov > 0 ) {
n = 1;
df->BuildOverviews("NEAREST", nov, ov, 1, &n, NULL, NULL );
}
}