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added some on-screen help

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This commit is contained in:
Vadim Pisarevsky 2010-06-14 14:33:11 +00:00
parent 2d2cc3ecdf
commit 56f17b78bb
1 changed files with 11 additions and 2 deletions
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13
samples/cpp/select3dobj.cpp
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@ -230,7 +230,7 @@ static int select3DBox(const string& windowname, const string& selWinName, const
box.clear(); box.clear();
return c == ' ' ? -1 : -100; return c == ' ' ? -1 : -100;
} }
if( c == '\r' || c == '\n' && nobjpt == 4 && box[3].z > 0 ) if( (c == '\r' || c == '\n') && nobjpt == 4 && box[3].z != 0 )
return 1; return 1;
} }
} }
@ -321,6 +321,13 @@ int main(int argc, char** argv)
{ {
const char* help = "Usage: select3dobj -w <board_width -h <board_height> [-s <square_size>]\n" const char* help = "Usage: select3dobj -w <board_width -h <board_height> [-s <square_size>]\n"
"\t-i <intrinsics_filename> -o <output_prefix> [video_filename/cameraId]\n"; "\t-i <intrinsics_filename> -o <output_prefix> [video_filename/cameraId]\n";
const char* screen_help =
"Actions: \n"
"\tSelect object as 3D box with the mouse. That's it\n"
"\tESC - Reset the selection\n"
"\tSPACE - Skip the frame; move to the next frame (not in video mode)\n"
"\tENTER - Confirm the selection. Grab next object in video mode.\n"
"\tq - Exit the program\n";
if(argc < 5) if(argc < 5)
{ {
@ -448,6 +455,8 @@ int main(int argc, char** argv)
int frameIdx = 0; int frameIdx = 0;
bool grabNext = !imageList.empty(); bool grabNext = !imageList.empty();
puts(screen_help);
for(int i = 0;;i++) for(int i = 0;;i++)
{ {
Mat frame0; Mat frame0;
@ -540,7 +549,7 @@ int main(int argc, char** argv)
imshow("View", shownFrame); imshow("View", shownFrame);
imshow("Selected Object", selectedObjFrame); imshow("Selected Object", selectedObjFrame);
int c = waitKey(imageList.empty() ? 30 : 300); int c = waitKey(imageList.empty() && !box.empty() ? 30 : 300);
if( c == 'q' || c == 'Q' ) if( c == 'q' || c == 'Q' )
break; break;
if( c == '\r' || c == '\n' ) if( c == '\r' || c == '\n' )