00001 // This is core/vil/vil_image_resource.cxx 00002 #ifdef VCL_NEEDS_PRAGMA_INTERFACE 00003 #pragma implementation 00004 #endif 00005 //: 00006 // \file 00007 // \author Ian Scott ISBE Manchester 00008 // \date 20 Sep 2002 00009 // 00010 //----------------------------------------------------------------------------- 00011 00012 #include "vil_image_resource.h" 00013 #include <vil/vil_image_view_base.h> 00014 00015 //-------------------------------------------------------------------------------- 00016 00017 //: the reference count starts at 0. 00018 vil_image_resource::vil_image_resource() : reference_count_(0) { } 00019 00020 vil_image_resource::~vil_image_resource() { } 00021 00022 00023 bool vil_image_resource::get_property(char const *, void *) const 00024 { 00025 return false; 00026 } 00027 00028 00029 //: Check that a view will fit into the data at the given offset. 00030 // This includes checking that the pixel type is scalar. 00031 bool vil_image_resource::view_fits(const vil_image_view_base& im, unsigned i0, unsigned j0) 00032 { 00033 return i0 + im.ni() <= ni() && 00034 j0 + im.nj() <= nj() && 00035 im.nplanes() == nplanes() && 00036 vil_pixel_format_num_components(im.pixel_format()) == 1; 00037 } 00038
1.7.5.1