cmProc4.h/c : Update comments and documentation on cmScMod object.

cmProc4.c

@@ -3535,6 +3535,7 @@ cmScModEntry_t* _cmScModulatorInsertEntry(cmScModulator* p, unsigned idx, unsign
   return rc;
 }
 
+/*
 cmRC_t _cmScModulatorParse2( cmScModulator* p, cmCtx_t* ctx, cmSymTblH_t stH, const cmChar_t* fn )
 {
   cmRC_t        rc  = cmOkRC;
@@ -3648,6 +3649,7 @@ cmRC_t _cmScModulatorParse2( cmScModulator* p, cmCtx_t* ctx, cmSymTblH_t stH, co
 
   return rc;
 }
+*/
 
 cmRC_t _cmScModulatorParse( cmScModulator* p, cmCtx_t* ctx, cmSymTblH_t stH, const cmChar_t* fn )
 {
@@ -4140,6 +4142,7 @@ cmRC_t cmScModulatorExec( cmScModulator* p, unsigned scLocIdx )
   }
     
   
+  // Update the active variables
   cmScModVar_t* pp = NULL;
   cmScModVar_t* vp = p->alist;
   for(; vp!=NULL; vp=vp->alink)

cmProc4.h

@@ -495,6 +495,31 @@ unsigned   cmScAlignScanToTimeLineEvent( cmScMatcher* p, cmTlH_t tlH, cmTlObj_t*
 void       cmScAlignScanMarkers(  cmRpt_t* rpt, cmTlH_t tlH, cmScH_t scH );
 
 //=======================================================================================================================
+/*
+Syntax: <loc> <mod> <var> <type>   <params>
+  <loc> - score location
+  <mod> - name of the modulator 
+  <var> - variable name 
+  <type> - type of operation
+
+  <params>
+
+    <min>  - set a variable min value
+    <max>  - set a variable max value
+    <rate> - limit how often a variable is transmitted while it is ramping
+    <val>  - type dependent value - see 'Types' below.  
+    <end>  - ending value for a ramping variable
+    <dur>  - determines the length of time to get to the ending value
+
+  The value of parameters may be literal numeric values or may refer to
+   variables by their name.
+
+Types:
+  set    = set <var> to <val> which may be a literal or another variable.
+  line   = ramp from its current value to <val> over <dur> seconds
+  sline  = set <var> to <val> and ramp to <end> over <dur> seconds
+
+ */
 enum
 {
   kInvalidModTId,
@@ -535,7 +560,7 @@ typedef struct cmScModVar_str
   unsigned                 phase;    // cycle phase since activation  
   double                   min;
   double                   max;
-  double                   rate;     // output rate in milliseconds
+  double                   rate;     // output rate in milliseconds (use
   struct cmScModEntry_str* entry;    // last entry assoc'd with this value
   struct cmScModVar_str*   vlink;    // p->vlist link
   struct cmScModVar_str*   alink;    // p->alist link