r7930: fixes for backproject and pjrec

[ctsim.git] / tools / pjrec.cpp

diff --git a/tools/pjrec.cpp b/tools/pjrec.cpp
index ea230489c36429778cb9f133499624885a7d49d8..974d62e88b8408225c8859fe62588ce4459ca2fd 100644 (file)
--- a/tools/pjrec.cpp
+++ b/tools/pjrec.cpp
@@ -100,9 +100,7 @@ pjrec_usage (const char *program)
   std::cout << "    trig        Trigometric functions at every point" << std::endl;
   std::cout << "    table       Trigometric functions with precalculated table" << std::endl;
   std::cout << "    diff        Difference method" << std::endl;
-  std::cout << "    diff2       Optimized difference method (default)" << std::endl;
-  std::cout << "    idiff2      Optimized difference method with integer math" << std::endl;
-  std::cout << "    idiff3      Highly-optimized difference method with integer math" << std::endl;
+  std::cout << "    idiff       Difference method with integer math [default]" << std::endl;
   std::cout << "  --filter-param Alpha level for Hamming filter" << std::endl;
   std::cout << "  --trace        Set tracing to level" << std::endl;
   std::cout << "     none        No tracing (default)" << std::endl;
@@ -310,7 +308,12 @@ pjrec_main (int argc, char * const argv[])
 
   imLocal = new ImageFile (nx, ny);
 #else
-  projGlobal.read (pszFilenameProj);
+
+  if (! projGlobal.read (pszFilenameProj)) {
+    fprintf(stderr, "Unable to read projectfile file %s\n", pszFilenameProj);
+    exit(1);
+  }
+
   if (bOptVerbose) {
     std::ostringstream os;
     projGlobal.printScanInfo(os);