3D Point -> 3D Line
Function Description
Converting 3D point data to 3D line data connects points with identical connection field values into line objects based on specified sort field and ordering type, generating a new 3D line dataset. This can be used to create trajectory lines from timestamped point data in chronological order, simulating movement paths.
- Points sharing the same connection field value in the point dataset will be connected into a single line object. Points with unique connection field values or empty values will be excluded.
- The generated line data retains attributes from the point dataset's connection field.
Feature Entry
- Data tab->Data Processing group->Type Conversion->Point-Line-Polygon Conversion->3D Point -> 3D Line.
- Toolbox->Type Conversion->Point-Line-Polygon Conversion->3D Point -> 3D Line.
Parameter Description
- Source Dataset：
- Datasource: Specifies the datasource containing the dataset to convert.
- Dataset: Specifies the point dataset to convert.
- Parameters：
- Connection Field: Selects the field used to group points. Points with identical values in this field will form a line.
- Sort Field: Determines the connection order of points within each group. Default is SmUserID. For example, using a timestamp field creates chronological trajectory lines.
- Sort Type: Supports ascending or descending order to define line start/end points.
- Result Data：
- Datasource: Specifies the output datasource.
- Dataset: Names the resulting line dataset.
Notes:- Connection field supports numeric, wide-character, and text types only.
- Conversion fails if: all connection field values are empty; all values are unique; or partially empty with non-unique valid values.
Related Topics