原创 Labwindows/cvi8.5学习日志(40)----白噪声

//*****************************************************************************
// Labwindows/cvi8.5 白噪声发生器 
// szlihongtao      
// 2010-07-29
//*****************************************************************************  
#include <userint.h>
#include <ansi_c.h>
#include <analysis.h>
#include <cvirte.h>
#include <userint.h>
#include "t.h"
//*****************************************************************************
static int panelHandle;

double amp;
unsigned int cnt;
double seed;
double *wave;
//*****************************************************************************
int main (int argc, char *argv[])
{
 if (InitCVIRTE (0, argv, 0) == 0)
  return -1; /* out of memory */
 if ((panelHandle = LoadPanel (0, "t.uir", PANEL)) < 0)
  return -1;
 DisplayPanel (panelHandle);
 RunUserInterface ();
 DiscardPanel (panelHandle);
 return 0;
}
//*****************************************************************************
int CVICALLBACK GenerateWave (int panel, int control, int event,
  void *callbackData, int eventData1, int eventData2)
{
 switch (event)
 {
  case EVENT_COMMIT:           
  {
   GetCtrlVal (panelHandle, PANEL_AMP, &amp);
   GetCtrlVal (panelHandle, PANEL_SEED, &seed);
   GetCtrlVal (panelHandle, PANEL_NUM, &cnt);
   wave=malloc(cnt*sizeof(double));   // 申请内存
   WhiteNoise (cnt, amp, seed, wave);   // 产生白噪声

   DeleteGraphPlot (panelHandle, PANEL_GRAPH, -1, VAL_IMMEDIATE_DRAW);
   PlotY (panelHandle, PANEL_GRAPH, wave, cnt, VAL_DOUBLE, VAL_THIN_LINE, VAL_EMPTY_SQUARE, VAL_SOLID, 1, VAL_RED);
   free(wave);  // 释放内存

   break;
  }
 }
 return 0;
}
//*****************************************************************************
int CVICALLBACK mexit (int panel, int control, int event,
  void *callbackData, int eventData1, int eventData2)
{
 switch (event)
 {
  case EVENT_COMMIT:
   QuitUserInterface (0);
   break;
 }
 return 0;
}
//*****************************************************************************
//*****************************************************************************
//*****************************************************************************