Prep Commands
Preppers let you edit nonterrain via selecting separate geometry.
What Are Preppers?
Preppers are Landshape commands that are similar to Pickers, but that differ their purpose, which is to edit control geometry, rather than to edit terrain directly.
In other words, Preppers work like Pickers, but have another purpose. While standard Pickers edit with terrain, Preppers instead edit nonterrain.
Why Use Preppers?
Preppers are useful when you need to prepare or edit control geometry. Once prepped, you may select your prepped geometry, and let Pickers edit your terrain.
Note that preppers may still interact with the terrain. For instance, Drape will project your input to the terrain, and bend your geometry along its surface. However, draping does not edit the terrain.
Prep Commands Explained
For a more detailed breakdown of how to work with Preppers, see Prep Overview and Understanding Prep.
😊 Happy prepping!
List of All Prep Commands
Here are all of Landshape's Preppers, listed in top menu order:
Set
Move selection vertically, by distance or to Height.
Useful to accurately elevate geometry. Elevate relative other geometry, or to an absolute Height. Set works similar to Move, but along blue only. Selection Axes determine Height.
Menu: Extensions > Landshape > Prep > SetSmash
Flatten selection vertically.
Utility tool for making things flat. Useful for preparing geometry for later use as e.g. control groups. Smash ensures that your input is level. You can also smash terrain, which will reset all elevations while preserving topology and zones.
Menu: Extensions > Landshape > Prep > SmashClean
Simplify selection by removing tiny edges and other bad geometry. Useful to prepare e.g. externally sourced CAD input before Embedding. Currently removes edges not bound to faces.
Clean works in input groups. External CAD input, such as roadlines or ground type boundaries, regularly contains tiny edges and other bad geometry. This will create issues if you Embed them. Always Clean such input first.
Menu: Extensions > Landshape > Prep > CleanFace
Draw a new face in every empty flat edgeloop in selection.
Utility tool for preparing geometry for use as e.g. control groups. Face ensures that all your flat closed edges input has faces.
Menu: Extensions > Landshape > Prep > FaceDrape Edge
Project selection edges to terrain surface, and subdivide them, in new group.
Simple utility tool to conform edges. Useful to shoot edges up or down to hit terrain surface. Draped edges may then be used as input for other commands, like Grade.
Menu: Extensions > Landshape > Prep > Drape EdgeDrape Face
Project selection faces to terrain surface, in new group.
Useful to create areas that protrude above the terrain. Examples include sidewalks, crops, and snow.
Menu: Extensions > Landshape > Prep > Drape FaceEase
Set grading softness to selected edges and points.
Utility command, useful to set Grading weight to selected raw edges. Use in conjunction with Grade to soften transitions in the terrain.
Menu: Extensions > Landshape > Prep > EaseSmooth Path Full
Smoothen selected edgepath in both Plan and Height.
Useful to make the curvature of a connected series of edges less irregular.
Menu: Extensions > Landshape > Prop > Smooth Path FullSmooth Path Plan
Smoothen selected edgepath in Plan.
Useful to make the curvature of a connected series of edges less irregular in plan only. Ignores height differences.
Menu: Extensions > Landshape > Prop > Smooth Path PlanEven Path Slope
Equalize selected edgepath's slope, between selection startpoint and selection endpoint.
Useful to make the slope of a connected series of edges the same throughout.
Menu: Extensions > Landshape > Prop > Even Path SlopeRepartition Path
Subdivide or fuse selected edges, by resolution.
Useful to prepare straight edges for bending. Subdividing increases the plasticity of the edgepath. This enables softer transitions. After subdividing, use other commands to control path transitions. For instance Path control commands.
Menu: Extensions > Landshape > Prop > Repartition PathFit Path to Heights
Fit selected edgepath to selected containers' heights.
Useful to force a path to certain spot heighs, smoothing out the height transition in between.
Menu: Extensions > Landshape > Prop > Fit Path to HeightsRoadface Path
Create road surface along selected path.
Useful to output the the Road command's face control groups, without affecting terrain.
Menu: Extensions > Landshape > Prop > Roadface PathSplit Nonterrain Surface
Divide one surface group into two separate groups, cut by mask.
Apply to control geometry, not terrain. This is useful to divvy up e.g. a flat material zone control group inte several smaller ones.
Menu: Extensions > Landshape > Prop > Split Nonterrain Surface