Commit 4ef0307d authored by Emmanuel Christophe's avatar Emmanuel Christophe
Browse files

ENH: hill shading example can now take a different projection

parent 3d693036
......@@ -55,13 +55,14 @@
int main(int argc, char * argv[])
{
if (argc != 10)
if (argc < 10)
{
std::cout << argv[0] << " <output_filename> <output_color_filename> ";
std::cout <<
" <Longitude Output Origin point> <Latitude Output Origin point>";
std::cout << " <X Output Size> <Y Output size>";
std::cout << " <X Spacing> <Y Spacing> <DEM folder path>" << std::endl;
std::cout << argv[0] << " <output_filename> <output_color_filename> "
<< " <Longitude Output Origin point> <Latitude Output Origin point>"
<< " <X Output Size> <Y Output size>"
<< " <X Spacing> <Y Spacing> <DEM folder path>"
<< " [Projection Ref]"
<< std::endl;
return EXIT_FAILURE;
}
......@@ -107,17 +108,25 @@ int main(int argc, char * argv[])
spacing[1] = ::atof(argv[8]);
demToImage->SetOutputSpacing(spacing);
double res = 0;
//Compute the resolution (Vincenty formula)
double lon1 = origin[0];
double lon2 = origin[0] + size[0] * spacing[0];
double lat1 = origin[1];
double lat2 = origin[1] + size[1] * spacing[1];
double R = 6371; // km
double d = vcl_acos(vcl_sin(lat1) * vcl_sin(lat2) +
vcl_cos(lat1) * vcl_cos(lat2) * vcl_cos(lon2 - lon1)) * R;
double res = d / vcl_sqrt(2.0);
if ( argc > 10)
{
demToImage->SetOutputProjectionRef(argv[10]);
res = spacing[0];
}
else
{
//Compute the resolution (Vincenty formula)
double lon1 = origin[0];
double lon2 = origin[0] + size[0] * spacing[0];
double lat1 = origin[1];
double lat2 = origin[1] + size[1] * spacing[1];
double R = 6371; // km
double d = vcl_acos(vcl_sin(lat1) * vcl_sin(lat2) +
vcl_cos(lat1) * vcl_cos(lat2) * vcl_cos(lon2 - lon1)) * R;
res = d / vcl_sqrt(2.0);
}
// Software Guide : BeginLatex
//
// After generating the dem image as in the DEMToImageGenerator example, you can declare
......
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