Compare Points to Lines

Description

Show a report that compares selected points to lines.

Access

View / Report / Compare / Points to Lines

Requirements

Solve module
One or more selected points

Controls

Control	Description
Title	Type the title to display in the report.
Default	Click the button to display the default title for the report.
Match vertical	Select the checkbox to: Specify a Vertical distance in the search criteria. Specify a Vertical tolerance.
Search distances: Horizontal	Type the horizontal offset to search for lines.
Search distances: Vertical	Type the vertical distance to search for lines.
Tolerances:	Select the checkbox to enable the tolerance boxes. In the report, differences not within the Tolerances display red.
Offset Type	Offset : Type the tolerance for the two dimensional offset from the line. 3D Offset : Type the tolerance for the three dimensional offset from the line.
Vertical	Type the vertical tolerance. Note: Available when you select the Match vertical checkbox and the offset type is configured to Offset.
Project start/end segments	Do one of the following: Select the checkbox to consider the offset to reference lines projected from the start or end vertex when determining the smallest offset. Clear the checkbox to exclude offsets to reference lines projected from the start or end vertices.
Project at external deviation	Do one of the following: Select the checkbox to consider the distance from the lines internal vertices to the Vertex when determining the smallest offset. Clear the checkbox to exclude offsets to lines projected from the internal vertices. Note: Use in conjunction with the 2D Offset. If the smallest offset is the distance from the lines internal vertex then both line segments sharing that vertex are projected, and offsets are reported to both of the projected lines.
Use comparison project	Do one of the following: Clear the Use Comparison Project checkbox to compare selected points with unselected lines within the search criteria in the current project. Select the Use Comparison Project checkbox to compare the selected points with all lines within the search criteria in the comparison project.
	Browse to the project that contains the lines to compare.
	Move the selected item up in the list.
	Move the selected item down in the list.
OK	Show the comparison report.
Cancel	Cancel without running the command.

The following columns are available for output in the report. Select the checkbox to include the items in the report.

Column	Description
Point Name	Name of the compared points.
Point Id	Unique Id of the compared points.
Point Layer	Layer of the selected points.
Point Easting	Easting of the selected points.
Point Northing	Northing of the selected points.
Point Height	Height of the selected points.
Line Name	Name of the Line.
Line Id	Unique Id of the line.
Line Layer	The lines layer.
Line Easting	Easting of the location on the line where the perpendicular offset to the point is computed. Note: Use in conjunction with the 2D Offset.
Line Northing	Northing of the location on the line where the perpendicular 2D offset to the point is computed. Note: Use in conjunction with the 2D Offset.
Line Height	Height of the location on the line where the perpendicular 2D offset to the point is computed. Note: Use in conjunction with the 2D Offset.
Distance	Distance along the line to the location where the perpendicular 2D offset is computed. Note: Use in conjunction with the 2D Offset.
Offset	Two dimensional perpendicular offset from the line.
3D Offset	Three dimensional perpendicular offset from the line.
Difference Height	Difference in height between the height of the line perpendicular to the selected point and the selected point. Note: Use in conjunction with the 2D Offset.

Notes

Values are from the line to the selected point.
A negative offset indicates the selected point is to the left of the line.
A negative height difference indicates the selected point is below the line.
Only selected points will attempt to have comparison lines located and reported on.
Only lines that are displayed will be considered for comparison with the selected points, except when a comparison project is specified and all lines within the search distance are reported on.
Differences not within the specified tolerance are displayed in the report in red.
When Project at external deviation is selected, display Line Easting, Line Northing and Line Height to display the location where the offset is measured to.
An asterisks indicates the offset is to a projected line segment .
Selected columns will be shown in the defined order.
Press Shift + Ctrl then click to move the column to the top of the list.
Press Shift + Ctrl then click to move the column to the bottom of the list.
Only straight segments can be projected at external deviations.
The average height difference in the reports statistics is the arithmetic mean of the signed values not the absolute values.

Diagrams

Project start/end segments
		Line Projected Line Projected Offset Offset Vertex
Project at external deviation
		Line Projected Line Projected Offset Radial Distance Offset Vertex