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Help > Building a 3D Model > Creating and Modifying Objects > Object Points > Template Target Marking > How to Use Template Targets > Marking Template Targets
Marking Template Targets

Template targets can be marked with the manual sub-pixel marker. When the user enters sub-pixel marking mode (you may need to add the tool to the toolbar via the Commands tab in the Ribbon Toolbar Customization dialog) the Target Sub-toolbar may appear. Note that it only appears if at least one Template Target has been imported.

A setting on the Preferences dialog (Target Marking page of Preferences - Marking and Referencing) controls whether this toolbar appears if at least one template has been imported.  If this toolbar is not visible, and a template has been defined as the ‘default’ template, the default template will be used when target marking (see Define Project Target Templates dialog for information on the Default template). If no default template has been set, the traditional circular target marker will be used when marking.

The first target type in the list is the Circular Target (non-template).  This is the proven method for marking isolated circular targets.  The other templates (once they are imported) are in the drop list, and their names correspond to the names shown in the Define Project Target Templates dialog.  The target type is selected in this list before marking.  Note that the default template will be automatically selected. Once a template is selected in the drop list, it becomes the ‘default template’. The default template can also be set on the Define Project Target Templates dialog.

Marking a template target is similar to manual circular target marking as described in the Sub-Pixel Marking section.  Click the cursor down in the center of the target area and drag out the box to surround the target. Release the mouse button to have the target sub-pixel marked. For more complex target types (e.g. cross) a better match is usually found when the first click (i.e. the mouse down) occurs inside the cross region, and the region selected adequately surrounds the target (i.e. includes enough background around the target).

For infinite extent targets, only the area to be matched should be selected (i.e. the target region should not be extended beyond the edge of the target in the image in whatever direction the target’s is ‘infinite’).  For example, with an edge template, outline that region of the edge the matcher is to study.