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contrib needed for pyvpgl #51

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decrispell opened this issue Aug 2, 2019 · 3 comments
Closed

contrib needed for pyvpgl #51

decrispell opened this issue Aug 2, 2019 · 3 comments

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@decrispell
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#include <brip/brip_roi.h>

Is it necessary to include a brl header here just for a simple bounding box clip? It means the brl include libraries have to be added to the user's include path, even if they're not interested in contrib.

@decrispell
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On a related note, this whole function looks more like an actual implementation than a "wrapping" to me. Can the function be moved to brl somewhere, and then wrapped in the appropriate pyvxl place?

pyvxl/vpgl/pyvpgl.cxx

Lines 323 to 369 in 63b0c1f

std::tuple<vpgl_local_rational_camera<double>, unsigned, unsigned, unsigned, unsigned>
crop_image_using_3d_box(unsigned img_ni, unsigned img_nj, vpgl_rational_camera<double> const& cam,
double lower_left_lon, double lower_left_lat, double lower_left_elev,
double upper_right_lon, double upper_right_lat, double upper_right_elev,
double uncertainty, vpgl_lvcs lvcs)
{
// generate a lvcs coordinates to transfer camera offset coordinates
double ori_lon, ori_lat, ori_elev;
lvcs.get_origin(ori_lat, ori_lon, ori_elev);
if ( (ori_lat + ori_lon + ori_elev) * (ori_lat + ori_lon + ori_elev) < 1E-7) {
lvcs = vpgl_lvcs(lower_left_lat, lower_left_lon, lower_left_elev, vpgl_lvcs::wgs84, vpgl_lvcs::DEG, vpgl_lvcs::METERS);
}
vgl_box_3d<double> scene_bbox(lower_left_lon, lower_left_lat, lower_left_elev,
upper_right_lon, upper_right_lat, upper_right_elev);
vgl_box_2d<double> roi_box_2d;
bool good = __project_box(cam, lvcs, scene_bbox, uncertainty, roi_box_2d);
if(!good) {
throw std::runtime_error("vxl.vpgl.crop_image_using_3d_box: failed to project 2d roi box");
}
std::cout << "vxl.vpgl.crop_image_using_3d_box: projected 2d roi box: " << roi_box_2d << " given uncertainty " << uncertainty << " meters." << std::endl;
// crop the image
brip_roi broi(img_ni, img_nj);
vsol_box_2d_sptr bb = new vsol_box_2d();
bb->add_point(roi_box_2d.min_x(), roi_box_2d.min_y());
bb->add_point(roi_box_2d.max_x(), roi_box_2d.max_y());
bb = broi.clip_to_image_bounds(bb);
// store output
auto i0 = (unsigned)bb->get_min_x();
auto j0 = (unsigned)bb->get_min_y();
auto ni = (unsigned)bb->width();
auto nj = (unsigned)bb->height();
if (ni <= 0 || nj <= 0)
{
throw std::runtime_error("vxl.vpgl.crop_image_using_3d_box: clipping box is out of image boundary, empty crop image returned");
}
// create the local camera
vpgl_local_rational_camera<double> local_camera = __create_local_rational_camera(cam, lvcs, i0, j0);
return std::make_tuple(local_camera, i0, j0, ni, nj);
}

@decrispell
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@NoahRJohnson @andyneff

@drewgilliam
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contrib removed from pyvpgl in PR #56, implementation code as separate issue. #57.

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