【发布时间】:2016-06-21 07:39:33
【问题描述】:
我正在尝试读取激光扫描数据,然后将其用于构建地图 环境。
我的问题是,我不明白必须以什么格式将数据提供给 CObservation2DRangeScan 对象。
我试过了:
X,Y,X,Y,...
Y,X,Y,X,...
X,X,Y,Y,...
Y,Y,X,X,...
我将数据写入 rawlog 文件,然后在 rawlog 查看器中查看。 我使用了 [1,1],该点出现在 X=-1 和 Y=0 处。这是为什么呢?
这是来自 rawlog 查看器的数据
Timestamp (UTC): 2016/06/21,07:22:42.166880
(as time_t): 1466493762.16688
(as TTimestamp): 131109673621668800
Sensor label: ''
Homogeneous matrix for the sensor's 3D pose, relative to robot base:
1.00000 0.00000 0.00000 0.00000
0.00000 1.00000 0.00000 0.00000
0.00000 0.00000 1.00000 0.00000
0.00000 0.00000 0.00000 1.00000(x,y,z,yaw,pitch,roll)
(0.0000,0.0000,0.0000,0.00deg,-0.00deg,0.00deg)
Samples direction: Right->Left
Points in the scan: 2
Estimated sensor 'sigma': 0.010000
Increment in pitch during the scan: 0.000000 deg
Invalid points in the scan: 0
Sensor maximum range: 80.00 m
Sensor field-of-view ("aperture"): 360.0 deg
Raw scan values: [1.000 1.000 ]
Raw valid-scan values: [1 1 ]
这是我正在使用的代码:
CSensoryFrame SF;
CActionCollection actionCol;
CPose2D actualOdometryReading(0.0f, 0.0f, DEG2RAD(.0f));
// Prepare the "options" structure:
CActionRobotMovement2D actMov;
CActionRobotMovement2D::TMotionModelOptions opts;
opts.modelSelection = CActionRobotMovement2D::mmThrun;
opts.thrunModel.alfa3_trans_trans = 0.10f;
// Create the probability density distribution (PDF) from a 2D odometry reading:
actMov.computeFromOdometry(actualOdometryReading, opts);
actionCol.insert(actMov);
CObservation2DRangeScanPtr myObs = CObservation2DRangeScan::Create();
myObs->scan = scan; // = [1,0]
myObs->validRange = vranges; // = [1,1]
myObs->aperture = 2 * M_PI;
SF.insert(myObs);
【问题讨论】: