Euresys Coaxlink - Acquiring Images

Euresys::EGrabber Coaxlink Programmer's Guide
showInfo();
} catch (const std::exception &e) { // 7
std::cout << "error: " << e.what() << std::endl;
}
}
1. Include EGrabber.h, which defines the Euresys::EGrabber class, and includes the other header files we
need (such as EGenTL.h and the standard GenTL header file).
2. Create a Euresys::EGenTL object. This involves the following operations:
• locate and dynamically load the Coaxlink GenTL producer (coaxlink.cti);
• retrieve pointers to the functions exported by coaxlink.cti, and make them available via
Euresys::EGenTL methods;
• initialize coaxlink.cti (this is done by calling the GenTL initialization function GCInitLib).
3. Create a Euresys::EGrabber object. The constructor needs the gentl object created in step 2. It also takes
as optional arguments the indices of the interface and device to use.
The purpose of the angle brackets (<>) that come aer EGrabber will become clear later. For now, they can be
safely ignored.
4. Use GenApi on page 6 to find out the ID of the Coaxlink card. Euresys::InterfaceModule indicates that we
want an answer from the interface module.
5. Similarly, find out the ID of the device. This time, we use Euresys::DeviceModule to target the device module.
6. Finally, read the camera resolution. Euresys::RemoteModule indicates that the value must be retrieved from
the camera.
7. Euresys::EGrabber uses exceptions to report errors, so we wrap our code inside a try ... catch block.
Example of program output:
Interface: PC1633 - Coaxlink Quad G3 (2-camera) - KQG00014
Device: Device0
Resolution: 4096x4096
Acquiring images
This program uses Euresys::EGrabber to acquire images from a camera connected to a Coaxlink card:
#include <iostream>
#include <EGrabber.h>
void grab() {
Euresys::EGenTL gentl;
Euresys::EGrabber<> grabber(gentl); // 1
grabber.reallocBuffers(3); // 2
grabber.start(10); // 3
for (size_t i = 0; i < 10; ++i) {
Euresys::ScopedBuffer buf(grabber); // 4
void *ptr = buf.getInfo<void *>(GenTL::BUFFER_INFO_BASE); // 5
uint64_t ts = buf.getInfo<uint64_t>(GenTL::BUFFER_INFO_TIMESTAMP); // 6
std::cout << "buffer address: " << ptr << ", timestamp: "
<< ts << " us" << std::endl;
} // 7
}
int main() {
try {
grab();
} catch (const std::exception &e) {
std::cout << "error: " << e.what() << std::endl;
}
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