Index: trunk/psModules/src/camera/pmFPAfile.c
===================================================================
--- trunk/psModules/src/camera/pmFPAfile.c	(revision 9436)
+++ trunk/psModules/src/camera/pmFPAfile.c	(revision 9950)
@@ -119,4 +119,52 @@
 }
 
+// select the cell from the named pmFPAfile; if the named file does not exist,
+pmCell *pmFPAfileThisCell (psMetadata *files, const pmFPAview *view, const char *name)
+{
+    PS_ASSERT_PTR_NON_NULL(files, false);
+    PS_ASSERT_PTR_NON_NULL(view, false);
+    PS_ASSERT_PTR_NON_NULL(name, false);
+    PS_ASSERT_INT_POSITIVE(strlen(name), false);
+
+    bool status;
+
+    pmFPAfile *file = psMetadataLookupPtr (&status, files, name);
+    if (file == NULL) {
+        return NULL;
+    }
+
+    // internal files have the readout as a separate element:
+    if (file->mode == PM_FPA_MODE_INTERNAL) {
+        return NULL;
+    }
+
+    pmCell *cell = pmFPAviewThisCell(view, file->fpa);
+    return cell;
+}
+
+// select the readout from the named pmFPAfile; if the named file does not exist,
+pmChip *pmFPAfileThisChip (psMetadata *files, const pmFPAview *view, const char *name)
+{
+    PS_ASSERT_PTR_NON_NULL(files, false);
+    PS_ASSERT_PTR_NON_NULL(view, false);
+    PS_ASSERT_PTR_NON_NULL(name, false);
+    PS_ASSERT_INT_POSITIVE(strlen(name), false);
+
+    bool status;
+
+    pmFPAfile *file = psMetadataLookupPtr (&status, files, name);
+    if (file == NULL) {
+        return NULL;
+    }
+
+    // internal files have the readout as a separate element:
+    if (file->mode == PM_FPA_MODE_INTERNAL) {
+        return NULL;
+    }
+
+    pmChip *chip = pmFPAviewThisChip (view, file->fpa);
+    return chip;
+}
+
 // select the rule from the camera configuration, perform substitutions as needed
 char *pmFPAfileNameFromRule (char *rule, pmFPAfile *file, const pmFPAview *view)
@@ -296,2 +344,39 @@
     return false;
 }
+
+
+pmFPAfileType pmFPAfileTypeFromString(const char *type)
+{
+    PS_ASSERT_STRING_NON_EMPTY(type, PM_FPA_FILE_NONE);
+
+    if (!strcasecmp (type, "SX"))     {
+        return PM_FPA_FILE_SX;
+    }
+    if (!strcasecmp (type, "OBJ"))     {
+        return PM_FPA_FILE_OBJ;
+    }
+    if (!strcasecmp (type, "CMP"))     {
+        return PM_FPA_FILE_CMP;
+    }
+    if (!strcasecmp (type, "CMF"))     {
+        return PM_FPA_FILE_CMF;
+    }
+    if (!strcasecmp (type, "RAW"))     {
+        return PM_FPA_FILE_RAW;
+    }
+    if (!strcasecmp (type, "IMAGE"))     {
+        return PM_FPA_FILE_IMAGE;
+    }
+    if (!strcasecmp (type, "PSF"))     {
+        return PM_FPA_FILE_PSF;
+    }
+    if (!strcasecmp (type, "JPEG"))     {
+        return PM_FPA_FILE_JPEG;
+    }
+    if (!strcasecmp (type, "FRINGE")) {
+        return PM_FPA_FILE_FRINGE;
+    }
+
+    return PM_FPA_FILE_NONE;
+}
+