Face to line

Function Description

The function of converting a face object to a line object supports converting the boundary line or center line of the selected face object to a line object and saving it in the Online Data Set or CAD Dataset. When a face object is converted into a line object, it supports the conversion of a contour line and a center line, as shown in the following figure:

Figure 1: Contour lines to line object
Figure 2: Center Line of Region to Line Object

Function entrance

  • Object Operation tab-> Object Editing group drop-down box-> Face to Line.

Operating instructions

  1. Open the Region Dataset to the map, and select one or more face objects in the selectable state of the current face layer.
  2. On the Object Operation tab, in the Gallery control of the Object Editing group, click the Face to Line button to pop up the Face to Line dialog.
  3. Select the Target Datasource and Dataset to store the newly generated line object in the dialog box. There are two ways to save Result Data: save to the existing Dataset or create a new Line Dataset to save. The Parameter Settings in the dialog box are as follows:
    • Target Datasource: Set the Datasource where the Result Dataset should be saved.
    • Target Dataset: Select an existing line or CAD Dataset to store the newly generated line object.
    • Create Dataset: Select the Create Dataset check box to set the name of the Create Dataset and save the newly generated line object to the newly created Line Dataset. If this check box is not checked, the newly generated line object will be stored in the Target Dataset, and its Property Field will be appended to the Target Dataset property table.
  4. Type of surface line conversion: Click the Drop-down Button on the right side of the combo box to select the type of surface line conversion. Two conversion methods, Extract Boundary and center line, are provided:
    • Extract Boundary: This type of conversion refers to converting the boundary line of a face object into a line object.
    • Extract Center Line: This type of conversion refers to converting the centerline of a face object to a line object. When Extract Center Line is selected, the maximum and minimum width values need to be set. If the width of the face object is between the maximum and minimum width values, the center line will be extracted. If the width of the face object is less than minimum width, Extract Center Line will not be extracted. Extract Boundary when the face object width is greater than maximum width, as described on the Extract Centerline from Polygon page.
  5. Delete Source Object: Select the Delete Source Object check box to delete Select Objects in the Source Dataset if the selected surface object layer is editable.
  6. Click the OK button to complete the face object Convert to LineObject Operation.
Caution:
  • A face object generates a line object, and a combined face object generates a combined line object.
    • Compound composed of multiple faces in
  • CAD is not supported to Convert to Line objects through this function.