本文整理汇总了C++中LASreader::seek方法的典型用法代码示例。如果您正苦于以下问题：C++ LASreader::seek方法的具体用法？C++ LASreader::seek怎么用？C++ LASreader::seek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LASreader的用法示例。
在下文中一共展示了LASreader::seek方法的2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: main
//.........这里部分代码省略.........
if (geo_double_params)
{
lasreader->header.set_geo_double_params(num_geo_double_params, geo_double_params);
free(geo_double_params);
}
else
{
lasreader->header.del_geo_double_params();
}
lasreader->header.del_geo_ascii_params();
}
}
// do we need an extra pass
BOOL extra_pass = laswriteopener.is_piped();
// for piped output we need an extra pass
if (extra_pass)
{
if (lasreadopener.is_piped())
{
fprintf(stderr, "ERROR: input and output cannot both be piped\n");
usage(true);
}
if (verbose) fprintf(stderr, "extra pass for piped output: reading %lld points ...\n", lasreader->npoints);
// maybe seek to start position
if (subsequence_start) lasreader->seek(subsequence_start);
while (lasreader->read_point())
{
if (lasreader->p_count > subsequence_stop) break;
if (clip_to_bounding_box)
{
if (!lasreader->point.inside_box(lasreader->header.min_x, lasreader->header.min_y, lasreader->header.min_z, lasreader->header.max_x, lasreader->header.max_y, lasreader->header.max_z))
{
continue;
}
}
if (reproject_quantizer)
{
lasreader->point.compute_coordinates();
geoprojectionconverter.to_target(lasreader->point.coordinates);
lasreader->point.compute_XYZ(reproject_quantizer);
}
lasinventory.add(&lasreader->point);
}
lasreader->close();
lasreader->header.number_of_point_records = lasinventory.number_of_point_records;
for (i = 0; i < 5; i++) lasreader->header.number_of_points_by_return[i] = lasinventory.number_of_points_by_return[i+1];
if (reproject_quantizer) lasreader->header = *reproject_quantizer;
lasreader->header.max_x = lasreader->header.get_x(lasinventory.max_X);
lasreader->header.min_x = lasreader->header.get_x(lasinventory.min_X);
lasreader->header.max_y = lasreader->header.get_y(lasinventory.max_Y);
lasreader->header.min_y = lasreader->header.get_y(lasinventory.min_Y);
lasreader->header.max_z = lasreader->header.get_z(lasinventory.max_Z);示例2: main
//.........这里部分代码省略.........
lasreader->header.set_geo_double_params(num_geo_double_params, geo_double_params);
free(geo_double_params);
}
else
{
lasreader->header.del_geo_double_params();
}
lasreader->header.del_geo_ascii_params();
}
}
// do we need an extra pass
BOOL extra_pass = laswriteopener.is_piped();
// for piped output we need an extra pass
if (extra_pass)
{
if (lasreadopener.is_piped())
{
fprintf(stderr, "ERROR: input and output cannot both be piped\n");
usage(true);
}
#ifdef _WIN32
if (verbose) fprintf(stderr, "extra pass for piped output: reading %I64d points ...\n", lasreader->npoints);
#else
if (verbose) fprintf(stderr, "extra pass for piped output: reading %lld points ...\n", lasreader->npoints);
#endif
// maybe seek to start position
if (subsequence_start) lasreader->seek(subsequence_start);
while (lasreader->read_point())
{
if (lasreader->p_count > subsequence_stop) break;
if (clip_to_bounding_box)
{
if (!lasreader->point.inside_box(lasreader->header.min_x, lasreader->header.min_y, lasreader->header.min_z, lasreader->header.max_x, lasreader->header.max_y, lasreader->header.max_z))
{
continue;
}
}
if (reproject_quantizer)
{
lasreader->point.compute_coordinates();
geoprojectionconverter.to_target(lasreader->point.coordinates);
lasreader->point.compute_xyz(reproject_quantizer);
}
lasinventory.add(&lasreader->point);
}
lasreader->close();
lasreader->header.number_of_point_records = lasinventory.number_of_point_records;
for (i = 0; i < 5; i++) lasreader->header.number_of_points_by_return[i] = lasinventory.number_of_points_by_return[i+1];
if (reproject_quantizer) lasreader->header = *reproject_quantizer;
lasreader->header.max_x = lasreader->header.get_x(lasinventory.raw_max_x);
lasreader->header.min_x = lasreader->header.get_x(lasinventory.raw_min_x);
lasreader->header.max_y = lasreader->header.get_y(lasinventory.raw_max_y);
lasreader->header.min_y = lasreader->header.get_y(lasinventory.raw_min_y);
lasreader->header.max_z = lasreader->header.get_z(lasinventory.raw_max_z);
lasreader->header.min_z = lasreader->header.get_z(lasinventory.raw_min_z);