hasdata

Returns true if more data is available in blockedPointCloudDatastore

Syntax

tf = hasdata(bpcds)

Description

tf = hasdata(bpcds) returns a logical scalar, true or false, indicating the availability of data in the blockedPointCloudDatastore object bpcds. Use hasdata in conjunction with the read function to read all the data within the datastore. Call hasdata before calling read.

Examples

collapse all

Read Until All Data in `blockedPointCloudDatastore` Has Been Read

Open Live Script

Create a blocked point cloud.

pcfile = fullfile(toolboxdir("lidar"),"lidardata", ...
                       "las","aerialLidarData.laz");
bpc = blockedPointCloud(pcfile,[300 300]);

Create a blockedPointCloudDatastore from the blocked point cloud.

bpcds = blockedPointCloudDatastore(bpc);

Read data and metadata from the blockedPointCloudDatastore. Display the metadata.

while hasdata(bpcds)
      [data,info] = read(bpcds);
      disp(info)
end

                ROI: [4.2975e+05 4.3005e+05 3.6798e+06 3.6801e+06 ... ]
           PCNumber: 1
    PointAttributes: [1x1 lidarPointAttributes]
          BlockSize: [300 300 53.0300]

                ROI: [4.3005e+05 4.3035e+05 3.6798e+06 3.6801e+06 ... ]
           PCNumber: 1
    PointAttributes: [1x1 lidarPointAttributes]
          BlockSize: [300 300 53.0300]