DataAcquisition-Python/samples.py

from pickle import FALSE, TRUE
import sys

sys.path.append('../../../')

from Tof3DCamera.VzenseDS_api import *
import time

camera = VzenseTofCam()

camera_count = camera.VZ_GetDeviceCount()
retry_count = 100
while camera_count == 0 and retry_count > 0:
    retry_count = retry_count - 1
    camera_count = camera.VZ_GetDeviceCount()
    time.sleep(1)
    print("scaning......   ", retry_count)

device_info = VzDeviceInfo()

if camera_count > 1:
    ret, device_infolist = camera.VZ_GetDeviceInfoList(camera_count)
    if ret == 0:
        device_info = device_infolist[0]
        for info in device_infolist:
            print('cam uri:  ' + str(info.uri))
    else:
        print(' failed:' + ret)
        exit()
elif camera_count == 1:
    ret, device_info = camera.VZ_GetDeviceInfo()
    if ret == 0:
        print('cam uri:' + str(device_info.uri))
    else:
        print(' failed:' + ret)
        exit()
else:
    print("there are no camera found")
    exit()

if VzConnectStatus.Connected.value != device_info.status:
    print("connect statu:", device_info.status)
    print("Call VZ_OpenDeviceByUri with connect status :", VzConnectStatus.Connected.value)
    exit()
else:
    print("uri: " + str(device_info.uri))
    print("alias: " + str(device_info.alias))
    print("connectStatus: " + str(device_info.status))

ret = camera.VZ_OpenDeviceByUri(device_info.uri)
if ret == 0:
    print("open device successful")
else:
    print('VZ_OpenDeviceByUri failed: ' + str(ret))

ret = camera.VZ_StartStream()
if ret == 0:
    print("start stream successful")
else:
    print("VZ_StartStream failed:", ret)

while 1:
    ret, frameready = camera.VZ_GetFrameReady(c_uint16(1000))
    if ret != 0:
        print("VZ_GetFrameReady failed:", ret)
        continue

    if frameready.depth:
        ret, frame = camera.VZ_GetFrame(VzFrameType.VzDepthFrame)
        if ret == 0:
            ret, pointlist = camera.VZ_ConvertDepthFrameToPointCloudVector(frame)
            if ret == 0:
                curPath = os.getcwd()
                print(curPath)
                folder = curPath + "/save"
                if not os.path.exists(folder):
                    print("not exists")
                    os.makedirs(folder)
                else:
                    print("already exists")

                filename = folder + "/point.txt"
                file = open(filename, "w")

                for i in range(frame.width * frame.height):
                    if pointlist[i].z != 0 and pointlist[i].z != 65535:
                        file.write("{0},{1},{2}\n".format(pointlist[i].x, pointlist[i].y, pointlist[i].z))

                file.close()
                print("save ok")
            else:
                print("VZ_ConvertDepthFrameToWorldVector failed:", ret)
        break

ret = camera.VZ_StopStream()
if ret == 0:
    print("stop stream successful")
else:
    print('VZ_StopStream failed: ' + str(ret))

ret = camera.VZ_CloseDevice()
if ret == 0:
    print("close device successful")
else:
    print('VZ_CloseDevice failed: ' + str(ret))