jiateng_ws/camera/BasicDemo.py

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2025-06-07 10:45:09 +08:00
# -*- coding: utf-8 -*-
import sys
from PyQt5.QtWidgets import *
from CamOperation_class import CameraOperation
from MvCameraControl_class import *
from MvErrorDefine_const import *
from CameraParams_header import *
from PyUICBasicDemo import Ui_MainWindow
import ctypes
# 获取选取设备信息的索引,通过[]之间的字符去解析
def TxtWrapBy(start_str, end, all):
start = all.find(start_str)
if start >= 0:
start += len(start_str)
end = all.find(end, start)
if end >= 0:
return all[start:end].strip()
# 将返回的错误码转换为十六进制显示
def ToHexStr(num):
chaDic = {10: 'a', 11: 'b', 12: 'c', 13: 'd', 14: 'e', 15: 'f'}
hexStr = ""
if num < 0:
num = num + 2 ** 32
while num >= 16:
digit = num % 16
hexStr = chaDic.get(digit, str(digit)) + hexStr
num //= 16
hexStr = chaDic.get(num, str(num)) + hexStr
return hexStr
if __name__ == "__main__":
# ch:初始化SDK | en: initialize SDK
MvCamera.MV_CC_Initialize()
global deviceList
deviceList = MV_CC_DEVICE_INFO_LIST()
global cam
cam = MvCamera()
global nSelCamIndex
nSelCamIndex = 0
global obj_cam_operation
obj_cam_operation = 0
global isOpen
isOpen = False
global isGrabbing
isGrabbing = False
global isCalibMode # 是否是标定模式(获取原始图像)
isCalibMode = True
# 绑定下拉列表至设备信息索引
def xFunc(event):
global nSelCamIndex
nSelCamIndex = TxtWrapBy("[", "]", ui.ComboDevices.get())
# Decoding Characters
def decoding_char(c_ubyte_value):
c_char_p_value = ctypes.cast(c_ubyte_value, ctypes.c_char_p)
try:
decode_str = c_char_p_value.value.decode('gbk') # Chinese characters
except UnicodeDecodeError:
decode_str = str(c_char_p_value.value)
return decode_str
# ch:枚举相机 | en:enum devices
def enum_devices():
global deviceList
global obj_cam_operation
deviceList = MV_CC_DEVICE_INFO_LIST()
n_layer_type = (MV_GIGE_DEVICE | MV_USB_DEVICE | MV_GENTL_CAMERALINK_DEVICE
| MV_GENTL_CXP_DEVICE | MV_GENTL_XOF_DEVICE)
ret = MvCamera.MV_CC_EnumDevices(n_layer_type, deviceList)
if ret != 0:
strError = "Enum devices fail! ret = :" + ToHexStr(ret)
QMessageBox.warning(mainWindow, "Error", strError, QMessageBox.Ok)
return ret
if deviceList.nDeviceNum == 0:
QMessageBox.warning(mainWindow, "Info", "Find no device", QMessageBox.Ok)
return ret
print("Find %d devices!" % deviceList.nDeviceNum)
devList = []
for i in range(0, deviceList.nDeviceNum):
mvcc_dev_info = cast(deviceList.pDeviceInfo[i], POINTER(MV_CC_DEVICE_INFO)).contents
if mvcc_dev_info.nTLayerType == MV_GIGE_DEVICE or mvcc_dev_info.nTLayerType == MV_GENTL_GIGE_DEVICE:
print("\ngige device: [%d]" % i)
user_defined_name = decoding_char(mvcc_dev_info.SpecialInfo.stGigEInfo.chUserDefinedName)
model_name = decoding_char(mvcc_dev_info.SpecialInfo.stGigEInfo.chModelName)
print("device user define name: " + user_defined_name)
print("device model name: " + model_name)
nip1 = ((mvcc_dev_info.SpecialInfo.stGigEInfo.nCurrentIp & 0xff000000) >> 24)
nip2 = ((mvcc_dev_info.SpecialInfo.stGigEInfo.nCurrentIp & 0x00ff0000) >> 16)
nip3 = ((mvcc_dev_info.SpecialInfo.stGigEInfo.nCurrentIp & 0x0000ff00) >> 8)
nip4 = (mvcc_dev_info.SpecialInfo.stGigEInfo.nCurrentIp & 0x000000ff)
print("current ip: %d.%d.%d.%d " % (nip1, nip2, nip3, nip4))
devList.append(
"[" + str(i) + "]GigE: " + user_defined_name + " " + model_name + "(" + str(nip1) + "." + str(
nip2) + "." + str(nip3) + "." + str(nip4) + ")")
elif mvcc_dev_info.nTLayerType == MV_USB_DEVICE:
print("\nu3v device: [%d]" % i)
user_defined_name = decoding_char(mvcc_dev_info.SpecialInfo.stUsb3VInfo.chUserDefinedName)
model_name = decoding_char(mvcc_dev_info.SpecialInfo.stUsb3VInfo.chModelName)
print("device user define name: " + user_defined_name)
print("device model name: " + model_name)
strSerialNumber = ""
for per in mvcc_dev_info.SpecialInfo.stUsb3VInfo.chSerialNumber:
if per == 0:
break
strSerialNumber = strSerialNumber + chr(per)
print("user serial number: " + strSerialNumber)
devList.append("[" + str(i) + "]USB: " + user_defined_name + " " + model_name
+ "(" + str(strSerialNumber) + ")")
elif mvcc_dev_info.nTLayerType == MV_GENTL_CAMERALINK_DEVICE:
print("\nCML device: [%d]" % i)
user_defined_name = decoding_char(mvcc_dev_info.SpecialInfo.stCMLInfo.chUserDefinedName)
model_name = decoding_char(mvcc_dev_info.SpecialInfo.stCMLInfo.chModelName)
print("device user define name: " + user_defined_name)
print("device model name: " + model_name)
strSerialNumber = ""
for per in mvcc_dev_info.SpecialInfo.stCMLInfo.chSerialNumber:
if per == 0:
break
strSerialNumber = strSerialNumber + chr(per)
print("user serial number: " + strSerialNumber)
devList.append("[" + str(i) + "]CML: " + user_defined_name + " " + model_name
+ "(" + str(strSerialNumber) + ")")
elif mvcc_dev_info.nTLayerType == MV_GENTL_CXP_DEVICE:
print("\nCXP device: [%d]" % i)
user_defined_name = decoding_char(mvcc_dev_info.SpecialInfo.stCXPInfo.chUserDefinedName)
model_name = decoding_char(mvcc_dev_info.SpecialInfo.stCXPInfo.chModelName)
print("device user define name: " + user_defined_name)
print("device model name: " + model_name)
strSerialNumber = ""
for per in mvcc_dev_info.SpecialInfo.stCXPInfo.chSerialNumber:
if per == 0:
break
strSerialNumber = strSerialNumber + chr(per)
print("user serial number: " + strSerialNumber)
devList.append("[" + str(i) + "]CXP: " + user_defined_name + " " + model_name
+ "(" + str(strSerialNumber) + ")")
elif mvcc_dev_info.nTLayerType == MV_GENTL_XOF_DEVICE:
print("\nXoF device: [%d]" % i)
user_defined_name = decoding_char(mvcc_dev_info.SpecialInfo.stXoFInfo.chUserDefinedName)
model_name = decoding_char(mvcc_dev_info.SpecialInfo.stXoFInfo.chModelName)
print("device user define name: " + user_defined_name)
print("device model name: " + model_name)
strSerialNumber = ""
for per in mvcc_dev_info.SpecialInfo.stXoFInfo.chSerialNumber:
if per == 0:
break
strSerialNumber = strSerialNumber + chr(per)
print("user serial number: " + strSerialNumber)
devList.append("[" + str(i) + "]XoF: " + user_defined_name + " " + model_name
+ "(" + str(strSerialNumber) + ")")
ui.ComboDevices.clear()
ui.ComboDevices.addItems(devList)
ui.ComboDevices.setCurrentIndex(0)
# ch:打开相机 | en:open device
def open_device():
global deviceList
global nSelCamIndex
global obj_cam_operation
global isOpen
if isOpen:
QMessageBox.warning(mainWindow, "Error", 'Camera is Running!', QMessageBox.Ok)
return MV_E_CALLORDER
nSelCamIndex = ui.ComboDevices.currentIndex()
if nSelCamIndex < 0:
QMessageBox.warning(mainWindow, "Error", 'Please select a camera!', QMessageBox.Ok)
return MV_E_CALLORDER
obj_cam_operation = CameraOperation(cam, deviceList, nSelCamIndex)
ret = obj_cam_operation.Open_device()
if 0 != ret:
strError = "Open device failed ret:" + ToHexStr(ret)
QMessageBox.warning(mainWindow, "Error", strError, QMessageBox.Ok)
isOpen = False
else:
set_continue_mode()
get_param()
isOpen = True
enable_controls()
# ch:开始取流 | en:Start grab image
def start_grabbing():
global obj_cam_operation
global isGrabbing
ret = obj_cam_operation.Start_grabbing(ui.widgetDisplay.winId())
if ret != 0:
strError = "Start grabbing failed ret:" + ToHexStr(ret)
QMessageBox.warning(mainWindow, "Error", strError, QMessageBox.Ok)
else:
isGrabbing = True
enable_controls()
# ch:停止取流 | en:Stop grab image
def stop_grabbing():
global obj_cam_operation
global isGrabbing
ret = obj_cam_operation.Stop_grabbing()
if ret != 0:
strError = "Stop grabbing failed ret:" + ToHexStr(ret)
QMessageBox.warning(mainWindow, "Error", strError, QMessageBox.Ok)
else:
isGrabbing = False
enable_controls()
# ch:关闭设备 | Close device
def close_device():
global isOpen
global isGrabbing
global obj_cam_operation
if isOpen:
obj_cam_operation.Close_device()
isOpen = False
isGrabbing = False
enable_controls()
# ch:设置触发模式 | en:set trigger mode
def set_continue_mode():
ret = obj_cam_operation.Set_trigger_mode(False)
if ret != 0:
strError = "Set continue mode failed ret:" + ToHexStr(ret) + " mode is " + str(is_trigger_mode)
QMessageBox.warning(mainWindow, "Error", strError, QMessageBox.Ok)
else:
ui.radioContinueMode.setChecked(True)
ui.radioTriggerMode.setChecked(False)
ui.bnSoftwareTrigger.setEnabled(False)
# ch:设置软触发模式 | en:set software trigger mode
def set_software_trigger_mode():
ret = obj_cam_operation.Set_trigger_mode(True)
if ret != 0:
strError = "Set trigger mode failed ret:" + ToHexStr(ret)
QMessageBox.warning(mainWindow, "Error", strError, QMessageBox.Ok)
else:
ui.radioContinueMode.setChecked(False)
ui.radioTriggerMode.setChecked(True)
ui.bnSoftwareTrigger.setEnabled(isGrabbing)
# ch:设置触发命令 | en:set trigger software
def trigger_once():
ret = obj_cam_operation.Trigger_once()
if ret != 0:
strError = "TriggerSoftware failed ret:" + ToHexStr(ret)
QMessageBox.warning(mainWindow, "Error", strError, QMessageBox.Ok)
# ch:存图 | en:save image
def save_bmp():
ret = obj_cam_operation.Save_Bmp()
if ret != MV_OK:
strError = "Save BMP failed ret:" + ToHexStr(ret)
QMessageBox.warning(mainWindow, "Error", strError, QMessageBox.Ok)
else:
print("Save image success")
def is_float(str):
try:
float(str)
return True
except ValueError:
return False
# ch: 获取参数 | en:get param
def get_param():
ret = obj_cam_operation.Get_parameter()
if ret != MV_OK:
strError = "Get param failed ret:" + ToHexStr(ret)
QMessageBox.warning(mainWindow, "Error", strError, QMessageBox.Ok)
else:
ui.edtExposureTime.setText("{0:.2f}".format(obj_cam_operation.exposure_time))
ui.edtGain.setText("{0:.2f}".format(obj_cam_operation.gain))
ui.edtFrameRate.setText("{0:.2f}".format(obj_cam_operation.frame_rate))
# ch: 设置参数 | en:set param
def set_param():
frame_rate = ui.edtFrameRate.text()
exposure = ui.edtExposureTime.text()
gain = ui.edtGain.text()
if is_float(frame_rate)!=True or is_float(exposure)!=True or is_float(gain)!=True:
strError = "Set param failed ret:" + ToHexStr(MV_E_PARAMETER)
QMessageBox.warning(mainWindow, "Error", strError, QMessageBox.Ok)
return MV_E_PARAMETER
ret = obj_cam_operation.Set_parameter(frame_rate, exposure, gain)
if ret != MV_OK:
strError = "Set param failed ret:" + ToHexStr(ret)
QMessageBox.warning(mainWindow, "Error", strError, QMessageBox.Ok)
return MV_OK
# ch: 设置控件状态 | en:set enable status
def enable_controls():
global isGrabbing
global isOpen
# 先设置group的状态再单独设置各控件状态
ui.groupGrab.setEnabled(isOpen)
ui.groupParam.setEnabled(isOpen)
ui.bnOpen.setEnabled(not isOpen)
ui.bnClose.setEnabled(isOpen)
ui.bnStart.setEnabled(isOpen and (not isGrabbing))
ui.bnStop.setEnabled(isOpen and isGrabbing)
ui.bnSoftwareTrigger.setEnabled(isGrabbing and ui.radioTriggerMode.isChecked())
ui.bnSaveImage.setEnabled(isOpen and isGrabbing)
# ch: 初始化app, 绑定控件与函数 | en: Init app, bind ui and api
app = QApplication(sys.argv)
mainWindow = QMainWindow()
ui = Ui_MainWindow()
ui.setupUi(mainWindow)
ui.bnEnum.clicked.connect(enum_devices)
ui.bnOpen.clicked.connect(open_device)
ui.bnClose.clicked.connect(close_device)
ui.bnStart.clicked.connect(start_grabbing)
ui.bnStop.clicked.connect(stop_grabbing)
ui.bnSoftwareTrigger.clicked.connect(trigger_once)
ui.radioTriggerMode.clicked.connect(set_software_trigger_mode)
ui.radioContinueMode.clicked.connect(set_continue_mode)
ui.bnGetParam.clicked.connect(get_param)
ui.bnSetParam.clicked.connect(set_param)
ui.bnSaveImage.clicked.connect(save_bmp)
mainWindow.show()
app.exec_()
close_device()
# ch:反初始化SDK | en: finalize SDK
MvCamera.MV_CC_Finalize()
sys.exit()