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There are several getters for various fetching image data from the xtc file. Depending on which camera was in use, one of these should be appropriate:

Opal1000 camera:
getOpal1kValue (an alias for getFrameValue)

Which camera?
getTm6740Value (an alias for getFrameValue)

FrameDetector (general):

Code Block
int getFrameConfig (FrameDetector det); int getFrameValue(FrameDetector det, int& frameWidth, int& frameHeight, unsigned short*& image );

Gives you the width and height (in pixels) of the image, and a pointer to the start of the pixel array of a Pds::Camera::FrameV1 object. Specify the detector (using an appropriate enum).

Code Block
Available frame detectors: AMO: AmoVmi AmoBps1 AmoBps2 SXR: SxrBeamlineOpal1 SxrBeamlineOpal2 SxrEndstationOpal1 SxrEndstationOpal2 SxrFccd XPP: XppSb1PimCvd XppMonPimCvd XppSb3PimCvd XppSb4PimCvd

XPP CsPad detector:

Code Block

 namespace Pds { namespace CsPad { class ConfigV1; }}
 int getCspadConfig (Pds::DetInfo::Detector det, unsigned& quadMask, unsigned& asicMask);
 int getCspadConfig (Pds::DetInfo::Detector det, Pds::CsPad::ConfigV1& cfg);

 namespace Pds { namespace CsPad { class ElementV1; }}
 int getCspadQuad  (Pds::DetInfo::Detector det, unsigned quad, const uint16_t*& pixels);
 int getCspadQuad  (Pds::DetInfo::Detector det, unsigned quad, const Pds::CsPad::ElementV1*& data);

Gives you a pointer to the first position in the array of pixel data from the XPP CsPad detector (or alternatively you can get a pointer to the Pds::CsPad::ElementV1 object itself).
For an example of how to draw an image as a 2D root histogram, see the myana_cspad.cc example.

Fast CCD camera:

Code Block

 int getFccdConfig(FrameDetector det, uint16_t& outputMode, bool& ccdEnable, bool& focusMode, uint32_t& exposureTime,
                  float& dacVoltage1, float& dacVoltage2, float& dacVoltage3, float& dacVoltage4,
                  float& dacVoltage5, float& dacVoltage6, float& dacVoltage7, float& dacVoltage8,
                  float& dacVoltage9, float& dacVoltage10, float& dacVoltage11, float& dacVoltage12,
                  float& dacVoltage13, float& dacVoltage14, float& dacVoltage15, float& dacVoltage16,
                  float& dacVoltage17,
                  uint16_t& waveform0, uint16_t& waveform1, uint16_t& waveform2, uint16_t& waveform3,
                  uint16_t& waveform4, uint16_t& waveform5, uint16_t& waveform6, uint16_t& waveform7,
                  uint16_t& waveform8, uint16_t& waveform9, uint16_t& waveform10, uint16_t& waveform11,
                  uint16_t& waveform12, uint16_t& waveform13, uint16_t& waveform14);

Configures the information from the Fast CCD. Fills arguments with values depending on how the image/waveform data were taken. There is no getFccdValue in main.hh, so I think you need to use getFrameValue for this

.

PnCCD camera (used by CAMP):
Code Block
int getPnCcdValue (int deviceId, unsigned char*& image, int& width, int& height );
This camera has 4 links, each link provides a 512 x 512 x 16 bit image. This function combines the four images to a single 1024 x 1024 x 16 bit image.
deviceId can be PnCcd0 or PnCcd1, width and height are the number of pixels in each direction.

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Princeton camera:
Code Block

------------------------------------------------------------------------------------------------------ Princeton camera ------------------------------------------------------------------------------------------------------ int getPrincetonConfig(Pds::DetInfo::Detector det, int iDevId, int& width, int&

int getPrincetonConfig(Pds::DetInfo::Detector det, int iDevId, int& width, int& height, int& orgX, int& orgY, int& binX, int&binY);

-->

int getPrincetonValue(Pds::DetInfo::Detector det, int iDevId, unsigned short *& image);

-->

int getPrincetonTemperature(Pds::DetInfo::Detector det, int iDevId, float& temperature);
fetches the configuration and data from the camera. getPrincetonTemperature is there to check the temperature of the camera at the time of data taking (not necessarily available for every shot).

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Other functions:

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Code Block


 
 ------------------------------------------------------------------------------------------------------
 Ipimb detector (Intensity Position, Intensity Monitor Board)
 ------------------------------------------------------------------------------------------------------
 int getIpimbConfig(Pds::DetInfo::Detector det, int iDevId);
 -->

 int getIpimbVolts(Pds::DetInfo::Detector det, int iDevId,
                   float &channel0, float &channel1, float &channel2, float &channel3);
 -->


 ------------------------------------------------------------------------------------------------------
 Encoder detector
 ------------------------------------------------------------------------------------------------------

  int getEncoderConfig   (Pds::DetInfo::Detector det, int iDevId);
  -->

  int getEncoderCount(Pds::DetInfo::Detector det, int iDevId, unsigned int& encoderCount);
  -->


 ------------------------------------------------------------------------------------------------------
 DiodeFex
 ------------------------------------------------------------------------------------------------------
 int getDiodeFexConfig (Pds::DetInfo::Detector det, int iDevId, float* base, float* scale);
 -->
 int getDiodeFexValue (Pds::DetInfo::Detector det, int iDevId, float& value);
 -->

 ------------------------------------------------------------------------------------------------------
 Imp detector Fex (feature extraction)
 ------------------------------------------------------------------------------------------------------
 int getIpmFexConfig   (Pds::DetInfo::Detector det, int iDevId,
                       float* base0, float* scale0,
                       float* base1, float* scale1,
                       float* base2, float* scale2,
                       float* base3, float* scale3,
                       float& xscale, float& yscale);
 int getIpmFexValue   (Pds::DetInfo::Detector det, int iDevId,
                      float* channels, float& sum, float& xpos, float& ypos);


------------------------------------------------------------------------------------------------------
 Other functions that do not require (or have) configuration
 ------------------------------------------------------------------------------------------------------


 int getFeeGasDet  (double* shotEnergy);
 --> Gives you the shot energy to the array shotEnergy[4]. This information is obtained from
     the Front End Enclosure Gas Detector.



 int getEBeam(double& charge, double& energy, double& posx, double& posy,
              double& angx, double& angy);
 int getEBeam(double& charge, double& energy, double& posx, double& posy,
              double& angx, double& angy, double& pkcurr);
  --> Gives electron beam values for each of these doubles. The measured charge of the beam (in nC),
      the measured energy of the beam (in MeV), the 2D position of the beam (in mm) away from the origin
      (nominal beam position), and 2D angular position (in mrad) off the assumed direction. and the
      pkcurr = current? in (Amps)



 int getPhaseCavity(double& fitTime1, double& fitTime2, double& charge1,  double& charge2);
 --> Gives you the phase cavity fit time (low and high?) and charges (before and after?).



 int getEvrDataNumber();

 int getEvrData    ( int id, unsigned int& eventCode, unsigned int& fiducial, unsigned int& timeStamp );
     - eventCode tells you something about the beam quality of this event. Usually the event code is  140,
       meaning electrons were produced upstream (beam was on). It does not tell you about the photon status.
       Other codes:

     - fiducial
     - timestamp


 ------------------------------------------------------------------------------------------------------
 EPICS
 ------------------------------------------------------------------------------------------------------

 Get integers, floats, strings from any EPICS channel (PV = process variable)
 int getPvInt      (const char* pvName, int& value);
 int getPvFloat    (const char* pvName, float& value);
 int getPvString   (const char* pvName, char*& value);

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Other functions: