Geometry Properties

Description

Displays the geometry properties of the selected object.

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Geometry

The geometry properties displayed will be determined by the object type selected. You can view geometry properties for the following objects.

Lines
Alignments
Polygons
Shapes
Shapes (Pipes)
Terrain Model

Lines

Property	Description
Length	Displays the total length of the line in 2 dimensions.
Length 3D	Displays the total length of the line in 3 dimensions.
Extents	Expand the node to view the coordinate extents of the line.
Segment Count	The number of segments in the line.
Segment	Type the segment number to display or click or to scroll through the line segments.
Type	The type of segment: Straight Circular Arc Clothoid (Full) Clothoid (Partial) Bloss (Full) Bloss (Partial) NSW Cubic Parabola (Full) NSW Cubic Parabola (Partial) Spline

The segment properties displayed is determined by the line segment type.

Straight Segment Properties	Description
Segment Length	The 2 dimensional length of the straight segment.
Segment Length 3D	The 3 dimensional length of the straight segment.
Bearing	The bearing of the line segment.
Start	Expand the node to view the coordinates of the line segments start vertex.
End	Expand the node to view the coordinates of the line segments end vertex.
Circular Arc Segment Properties	Description
3D	Do one of the following: Select the checkbox to interpret the radius as 3 dimensional, and view arc geometry properties in 3 dimensions. Clear the checkbox to interpret the radius as 2 dimensional and view arc geometry properties in 2 dimensions. In Plan view the arc will display as a circular arc. In 3d view the line will be drawn on the 3 dimensional plane constructed from vertices defined for the arc.
Segment Length	The 2 dimensional length of the circular arc segment.
Segment Length 3D	The 3 dimensional length of the circular arc segment.
Radius	The 2 or 3 dimensional radius.
Arc Distance	The 2 or 3 dimensional arc distance.
Chord Bearing	The bearing between the start and end point.
Chord Distance	The 2 or 3 dimensional chord distance between the start and end point.
Tangent Distance	The 2 or 3 dimensional tangent distance.
External Distance	The 2 or 3 dimensional distance from the intersection point to the mid-point of the line.
Middle Ordinate	The 2 or 3 dimensional distance from the mid-point of the arc to the mid-point of the chord.
Segment Area	The 2 or 3 dimensional area bounded by the chord and the circular arc, .
Sector Area	The 2 or 3 dimensional area bounded by the circular arc and reference lines running from both the start and end points to the centre point.
Start	Expand the node to view the coordinates for the circular arc segments start vertex.
Centre	Expand the node to view the coordinates for the circular arcs centre vertex.
Mid	Expand the node to view the coordinates for an additional vertex in the circular arc.
End	Expand the node to view the coordinates for the circular arcs segments end vertex.
Transition Curve Segment Properties	Description
Segment Length	The 2 dimensional length of the transition curve segment.
Segment Length 3D	The 3 dimensional length of the transition curve segment.
Entry Tangent Bearing	The bearing of the tangent at the start of the transition curve. Note: For partial transition curves, the bearing is the tangent bearing of the full transition curve.
Exit Tangent Bearing	The bearing of the tangent at the end of the transition curve. Note: For partial transition curves, the bearing is the tangent bearing of the full transition curve.
From Radius	The 2 dimensional radius at the start of the transition curve. Note: A negative radius indicates the transition curve direction is anticlockwise. Displayed when the direction of the transition is from minimum radius to maximum radius for a full transition curve.
To Radius	The 2 dimensional radius at the end of the transition curve. Note: A negative radius indicates the transition curve direction is anticlockwise. Displayed when the direction of the transition is from maximum radius to minimum radius for a full transition curve.
Start	Expand the node to view the coordinates for the lines start vertex.
End	Expand the node to view the coordinates for the lines end vertex.
Spline Segment Properties	Description
Segment Length	The 2 dimensional length of the spline segment.
Segment Length 3D	The 3 dimensional length of the spline segment.
Intermediate Count	Number of sections in the spline.
Intermediate	Type the spline section to view or click or .
Start	Expand the node to view the coordinates of the line segments start vertex.
End	Expand the node to view the coordinates of the line segments end vertex.

Alignments

Property	Description
Length	Displays the total length of the alignment in 2 dimensions.
Length 3D	Displays the total length of the alignment in 3 dimensions.
Extents	Expand the node to view the coordinate extents of the alignment.
Segment Count	The number of segments in the alignment.
Segment	Type the segment number to display or click or to scroll through the alignment segments.
Type	The type of segment: Straight Circular Arc Clothoid (Full) Clothoid (Partial) Bloss (Full) Bloss (Partial) NSW Cubic Parabola (Full) NSW Cubic Parabola (Partial) Spline

The segment properties displayed is determined by the alignment segment type.

Straight Segment Properties	Description
Segment Length	The 2 dimensional length of the straight segment.
Segment Length 3D	The 3 dimensional length of the straight segment.
Bearing	The bearing of the segment.
Start	Expand the node to view the coordinates of the segments start vertex.
End	Expand the node to view the coordinates of the segments end vertex.
Circular Arc Segment Properties	Description
Segment Length	The 2 dimensional length of the circular arc segment.
Segment Length 3D	The 3 dimensional length of the circular arc segment.
3D	View arc geometry properties in 2 dimensions only. In Plan view the arc will display as a circular arc. In 3d view the line will be drawn on the 3 dimensional plane constructed from vertices defined for the arc.
Radius	The 2 dimensional radius.
Arc Distance	The 2 dimensional arc distance.
Chord Bearing	The bearing between the start and end point.
Chord Distance	The 2dimensional chord distance between the start and end point.
Tangent Distance	The 2 dimensional tangent distance.
External Distance	The 2 dimensional distance from the intersection point to the mid-point of the arc.
Middle Ordinate	The 2 dimensional distance from the mid-point of the arc to the mid-point of the chord.
Segment Area	The 2 dimensional area bounded by the chord and the circular arc, .
Sector Area	The 2 dimensional area bounded by the circular arc and reference lines running from both the start and end points to the centre point.
Start	Expand the node to view the coordinates for the circular arc segments start vertex.
Mid	Expand the node to view the coordinates for an additional vertex in the circular arc.
Centre	Expand the node to view the coordinates for the circular arcs centre vertex.
End	Expand the node to view the coordinates for the circular arcs segments end vertex.
Transition Curve Segment Properties	Description
Segment Length	The 2 dimensional length of the transition curve segment.
Segment Length 3D	The 3 dimensional length of the transition curve segment.
Entry Tangent Bearing	The bearing of the tangent at the start of the transition curve. Note: For partial transition curves, the bearing is the tangent bearing of the full transition curve.
Exit Tangent Bearing	The bearing of the tangent at the end of the transition curve. Note: For partial transition curves, the bearing is the tangent bearing of the full transition curve.
From Radius	The 2 dimensional radius at the start of the transition curve. Note: A negative radius indicates the transition curve direction is anticlockwise. Displayed when the direction of the transition is from minimum radius to maximum radius for a full transition curve.
To Radius	The 2 dimensional radius at the end of the transition curve. Note: A negative radius indicates the transition curve direction is anticlockwise. Displayed when the direction of the transition is from maximum radius to minimum radius for a full transition curve.
Start	Expand the node to view the coordinates for the segments start vertex.
End	Expand the node to view the coordinates for the segments end vertex.

Polygons

Property	Description
Planimetric Area	Displays the plane area of a polygon.
Surface Area	Displays the surface area of a polygon.
Breakline	View or select if the polygon will be used as a breakline or a boundary when it is used in the creation of a terrain model. No - The line or polygon is not considered a breakline. Yes - The line or polygon is considered a breakline. Boundary - The polygon is considered a boundary.
Extents	Expand the node to view the coordinate extents of the polygon.
Segment Count	The number of segments in the polygon.
Segment	Type the segment number to display or click or to scroll through the polygon segments.
Type	The type of segment: Straight Circular Arc Clothoid (Full) Clothoid (Partial) Bloss (Full) Bloss (Partial) NSW Cubic Parabola (Full) NSW Cubic Parabola (Partial) Spline

The segment properties displayed is determined by the polygon segment type.

Straight Segment Properties	Description
Segment Length	The 2 dimensional length of the straight segment.
Segment Length 3D	The 3 dimensional length of the straight segment.
Bearing	The bearing of the line segment.
Start	Expand the node to view the coordinates of the line segments start vertex.
End	Expand the node to view the coordinates of the line segments end vertex.
Circular Arc Segment Properties	Description
Segment Length	The 2 dimensional length of the circular arc segment.
Segment Length 3D	The 3 dimensional length of the circular arc segment.
3D	Do one of the following: Select the checkbox to interpret the radius as 3 dimensional, and view arc geometry properties in 3 dimensions. Clear the checkbox to interpret the radius as 2 dimensional and view arc geometry properties in 2 dimensions. In Plan view the arc will display as a circular arc. In 3d view the line will be drawn on the 3 dimensional plane constructed from vertices defined for the arc.
Radius	The 2 or 3 dimensional radius.
Arc Distance	The 2 or 3 dimensional arc distance.
Chord Distance	The 2 or 3 dimensional chord distance between the start and end point.
Tangent Distance	The 2 or 3 dimensional tangent distance.
External Distance	The 2 or 3 dimensional distance from the intersection point to the mid-point of the line.
Middle Ordinate	The 2 or 3 dimensional distance from the mid-point of the arc to the mid-point of the chord.
Segment Area	The 2 or 3 dimensional area bounded by the chord and the circular arc.
Sector Area	The 2 or 3 dimensional area bounded by the circular arc and reference lines running from both the start and end points to the centre point.
Start	Expand the node to view the coordinates of the circular arc segments start vertex.
Centre	Expand the node to view the coordinates of the circular arcs centre vertex.
End	Expand the node to view the coordinates of the circular arcs segments end vertex.
Spline Segment Properties	Description
Length	The 2 dimensional length of the spline segment.
Length	The 3 dimensional length of the spline segment.
Intermediate Count	Number of sections in the spline.
Intermediate	Type the spline section to view or click or .
Start	Expand the node to view the coordinates of the line segments start vertex.
End	Expand the node to view the coordinates of the line segments end vertex.
Transition Curve Segment Properties	Description
Segment Length	The 2 dimensional length of the transition curve segment.
Segment Length 3D	The 3 dimensional length of the transition curve segment.
Entry Tangent Bearing	The bearing of the tangent at the start of the transition curve. Note: For partial transition curves, the bearing is the tangent bearing of the full transition curve.
Exit Tangent Bearing	The bearing of the tangent at the end of the transition curve. Note: For partial transition curves, the bearing is the tangent bearing of the full transition curve.
From Radius	The 2 dimensional radius at the start of the transition curve. Note: A negative radius indicates the transition curve direction is anticlockwise. Displayed when the direction of the transition is from minimum radius to maximum radius for a full transition curve.
To Radius	The 2 dimensional radius at the end of the transition curve. Note: A negative radius indicates the transition curve direction is anticlockwise. Displayed when the direction of the transition is from maximum radius to minimum radius for a full transition curve.
Start	Expand the node to view the coordinates for the segments start vertex.
End	Expand the node to view the coordinates for the segments end vertex.

Shapes

Property	Description
Surface Area	Displays the surface area of the shape.
Faces	Number of faces in a face set.
Vertices	Number of vertices in a face set.
Length	Displays the depth of the shape.
Extents	Expand the node to view the coordinate extents of the shape.

Shapes (Pipes)

Property	Description
Surface Area	The surface area of the pipe shape.
Volume	The volume of the pipe shape.
Diameter	View or Edit the diameter of a pipe shape.
Length	The 2 dimensional length of the pipe shape.
Length 3D	The 3 dimensional length of the pipe shape.
Bends	View or select how pipes are joined at bends: None - Pipes are not joined. Sharp - Pipes are joined with a sharp bend. Smooth - Pipes are joined with a smooth bend.
Start Cap	View or select how pipes are capped at the start: None Flat Hemispherical Semi Elliptical
End Cap	View or select how pipes are capped at the end: None Flat Hemispherical Semi Elliptical
Extents	Expand the node to view the coordinate extents of the pipe.
Segment Count	The total number of segments in the pipes shape.
Segment	The segment currently displayed.
Type	The segment type.
Straight Segment Properties	Description
Segment Length	The 2 dimensional length of the straight segment.
Segment Length 3D	The 3 dimensional length of the straight segment.
Bearing	The bearing of the straight segment.
Grade	The grade of the straight segment.
Start	Expand the node to view the coordinates of the pipe segments start vertex.
End	Expand the node to view the coordinates of the pipe segments end vertex.
Circular Arc Segment Properties	Description
Segment Length	The 2 dimensional length of the circular arc segment.
Segment Length 3D	The 3 dimensional length of the circular arc segment.
3D	Do one of the following: Select the checkbox to interpret the radius as 3 dimensional, and view arc geometry properties in 3 dimensions. Clear the checkbox to interpret the radius as 2 dimensional and view arc geometry properties in 2 dimensions. In Plan view the arc will display as a circular arc. In 3d view the line will be drawn on the 3 dimensional plane constructed from vertices defined for the arc.
Radius	The 2 or 3 dimensional radius.
Arc Distance	The 2 or 3 dimensional arc distance.
Chord Bearing	The bearing between the start and end point.
Chord Distance	The 2 or 3 dimensional chord distance between the start and end point.
Tangent Distance	The 2 or 3 dimensional tangent distance.
External Distance	The 2 or 3 dimensional distance from the intersection point to the mid-point of the pipe segment.
Middle Ordinate	The 2 or 3 dimensional distance from the mid-point of the arc to the mid-point of the chord.
Segment Area	The 2 or 3 dimensional area bounded by the chord and the circular arc, .
Sector Area	The 2 or 3 dimensional area bounded by the circular arc and reference lines running from both the start and end points to the centre point.
Start	Expand the node to view the coordinates for the circular arc segments start vertex.
Centre	Expand the node to view the coordinates for the circular arcs centre vertex.
Mid	Expand the node to view the coordinates for an additional vertex in the circular arc.
End	Expand the node to view the coordinates for the circular arcs segments end vertex.

Terrain Model

Property	Description
Extents	Expand the node to view the coordinate extents of the terrain model.
Faces	The number of terrain model faces selected.
Planimetric Area	The plane area of the selected terrain model or terrain model faces.
Vertices	The number of vertices in the selected terrain model or terrain model faces.

Notes

Length, diameter, area, grade and surface area is displayed in the current units.
3D lengths are always grid distances regardless of the distance type configuration.
Bearing and distances are displayed using the current bearing and distance type configuration.
The arc components are displayed using the 3D setting.
In order to convert arcs between 2 dimensional and 3 dimensional, the arc centre may be recomputed. The topology of circular arcs will not be broken in order to convert the arc. You can use the Modify Convert tool, to convert circular arcs and break the topology where necessary.
The initial Breakline property value is determined from the Breakline layer setting at the time the object is created or from the imported file.
If you edit the Invert Height, Middle Height or Obvert Height of a pipe, the other height values for the pipe are automatically adjusted while maintaining the end vertices horizontal location.