The Object Line options allows you to query a line feature and you will be asked to indicate the feature with the graphic cursor. When a line feature is found, the feature is highlighted in the graphic view and the dialog box shown below will be used to display the parameters of the feature.
The main list control shows the code, number and co-ordinates of each point in the feature with code column also showing any comma codes attached to points. The presence of a camera icon to the left of any point indicates that a photograph has been attached to that particular point. To change any of the points in the line feature, double-click it in the list control and the Query Point Dialog will be displayed.
The plan length and area of the line feature are displayed below the list control. If the feature is not closed, n4ce will add the closing leg for the area calculations, but not use it in the calculations for length. The area calculations also take into account any curved segments. If there are no two-dimensional points in the line feature, the slope length of the feature is also displayed.
The view towards the bottom of the dialog box shows the vertical profile of the feature. If there any two-dimensional points, there will be a gap in the vertical profile either side of each such point. In this view, a coloured vertical line shows which point in the list control is currently highlighted. As you move the highlight up and down, the coloured line moves left and right. In conjunction with this, the currently highlighted point is also highlighted in the graphic view of the model with a square blob.
The Coding button allows you to create or change the code defaults for the queried feature. If a code prefix which matches the code cannot be found, you will be asked if you wish to create a new one. If you do, you will be asked to enter the prefix and description and then specify the code defaults for the new prefix.
The Extents button allows to display the maximum and minimum extents of the feature. These will be shown in a simple dialog box as shown below.
The Reverse button allows you to reverse the sense of the line feature. The display of points in the list control and the vertical profile will be adjusted accordingly. This change is also made in the model so you should ensure that the direction of the feature is as required when leaving the dialog.
The Report button allows you to obtain a report of the line feature and will generate a report view similar to that shown below.
As well as the information that is displayed in the list control of the dialog, additional information is also calculated as below.
Bearing - the bearing of the straight line between successive points.
Length - the plan length of the straight line between successive points.
dBearing - the change in bearing between two successive line segments.
Chord Offs - the perpendicular offset of a point from the line between its preceding and following points.
The CSV File button allows you to save the co-ordinates of the line feature to a CSV file. You will be asked to specify a file name and then choose which CSV filter to use.