Creating Landscape Walls

A landscape wall object (retaining wall) can be set to be a site model modifier. It changes the proposed DTM when the site model is updated.

Straight, arc, and Bézier landscape walls can be drawn using the landscape walls tools, or by drawing a polyline and then selecting the Objects from Polyline command (see Creating Objects from Polylines). Place the different types of landscape walls next to each other to achieve a particular design or effect.

To create a row of straight and curved landscape walls, use the Objects from Polyline command.

 

Straight Landscape Walls

 

To insert a straight landscape wall:

1.	Click the Landscape Wall tool from the Site Planning tool set.

2.	Click and drag to define the length and angle of the landscape wall. Click again to set the end point. If this is the first time the tool is used during this session, the Object Properties dialog box opens. Accept the default values and click OK.

The straight landscape wall parameters can be edited in the Object Info palette.

 

Parameter	Description
Z	Elevation of starting point of wall
Rot	Angle of rotation of wall
Length	Total length of all wall sections in the object
Top Width	Width of wall at top (see diagram)
Step Height	When the wall starting point and ending point are different, this parameter indicates the height of the step between sections
Wall Height	Wall height above Z value
Rise	Difference in height between wall starting and ending points
Left/Right Pitch	Angle of wall on left and right sides (see diagram); for a straight wall with site modifiers, the left side is always the side that retains earth
Use Site Modifiers	Adds a pad and control fence to each wall section and allows the landscape wall to modify the site model
Use Fence	Places a control fence with the wall
Left/Right Fence Offset	Controls the fence offsets on either side of the wall (applies only when site modifiers are used)
Show Joints	Displays the connecting joints between wall sections

Arc Landscape Walls

 

To insert an arc landscape wall:

1.	Click the Landscape Wall Arc tool from the Site Planning tool set.

2.	Click to define the placement of the arc landscape wall and click again to set the rotation. If this is the first time the tool is used during this session, the Object Properties dialog box opens. Accept the default values and click OK.

The landscape wall arc parameters can be edited in the Object Info palette.

 

Parameter	Description
Z	Elevation of starting point of wall
Radius	Radius of all wall sections
Top Width	Width of wall at top (see diagram)
Step Height	When the wall starting point and ending point are different, this parameter indicates the height of the step between sections
Wall Height	Wall height above Z value
Rise	Difference in height between wall starting and ending points
Inside/Outside Pitch	Angle of wall on the inside and outside (see diagram); for an arc wall with site modifiers, the side of the wall that retains earth must be selected in Retained Side
Show Joints	Displays the connecting joints between wall sections
Retained Side	For an arc wall with site modifiers, select the side of the wall that retains earth
Arc Sweep	Angle, in degrees, of arc (see diagram)
Use Site Modifiers	Adds a pad and control fence to each wall section and allows the landscape wall to modify the site model
Use Fence	Places a control fence with the wall
Left/Right Fence Offset	Controls the fence offsets on either side of the wall (applies only when site modifiers are used)

Bézier Landscape Walls

 

To insert a Bézier landscape wall:

1.	Click the Landscape Wall Bezier tool from the Site Planning tool set.

2.	Click and drag to define the length and angle of the landscape wall. Click again to set the end point. If this is the first time the tool is used during this session, the Object Properties dialog box opens. Accept the default values and click OK.

3.	Adjust the control points of the Bézier wall by clicking and dragging to obtain the desired curvature.

The Bézier landscape wall parameters can be edited in the Object Info palette.

 

Parameter	Description
Z	Elevation of starting point of wall
Wall Length	Total length of all wall sections
Top Width	Width of wall at top (see diagram)
Wall Height	Wall height above Z value
Resolution	Select a 3D display resolution; low resolution displays fastest, but high resolution provides the best quality
Rise	Difference in height between wall starting and ending points
Left/Right Pitch	Angle of wall on left and right sides (see diagram); for a Bézier wall with site modifiers, the left side is always the side that retains earth
Show Joints	Displays the connecting joints between wall sections
Use Site Modifiers	Adds a pad and control fence to each wall section and allows the landscape wall to modify the site model
Use Fence	Places a control fence with the wall
Left/Right Fence Offset	Controls the fence offsets on either side of the wall (applies only when site modifiers are used)