XGRIDSDocs

2D Drawing

This chapter covers the 2D vector drawing tools, including AI extraction, drawing primitives, and editing operations.

Draw

Enter 2D drawing mode.

  1. Select the point cloud.
  2. Click Drawing Draw.

Toolbar:

IconButtonFunction
UndoPrevious Step (Undo)Undo the most recent drawing
RedoNext Step (Redo)Redo the most recent undo
Polygon SelectionPolygon SelectionDraw a polygon to select vectors
MidpointMidpointSnap to a vector midpoint when drawing
EndpointEndpointSnap to a vector endpoint when drawing
IntersectionIntersectionSnap to an intersection or extended intersection
Perpendicular PointPerpendicular PointSnap to the perpendicular foot from the previous point
Graphic PointGraphic PointSnap to any point on a vector
Center PointCenter PointSnap to the center of circles, arcs, and quadrilaterals
Orthogonal DrawingOrthogonal DrawingConstrain drawing to vertical/horizontal
Polar TrackingPolar TrackingAuto-display fixed angles when drawing

Save

Save the drawing results to a .dxf file.

Export

Export the drawing result .dxf to a selected directory.

Exit

Exit the drawing state.

AI-Extract

Automatically fit and extract 2D vector contours from the point cloud.

  1. Click AI-Extract AI-Extract.
  2. Set the parameters:
    • Ground Sampling Distance: The physical distance per pixel.
    • Point Cloud Simplification: The voxel edge length for downsampling.
    • Snap to 90°: When checked, vectors satisfy the "Manhattan World assumption" with only parallel/perpendicular relationships.
    • Min. Points per Segment: The number of points each vector must contain.
    • Max. Extension Length: The maximum distance for vectors to find intersections.
  3. Click Confirm.

Line

Draw a line with two points.

  1. Click Line Line.
  2. Left-click to specify the start point.
  3. Left-click to specify the end point.

Polyline

Connect multiple points to form a polyline.

  1. Click Polyline Polyline.
  2. Left-click to specify the start point.
  3. Left-click to specify subsequent points.
  4. Right-click to end.

Arc

Draw an arc with three points.

  1. Click Arc Arc.
  2. Left-click to specify the start point.
  3. Left-click to specify the second point and the end point in sequence.

Three-Point Rectangle

Draw a rectangle through three points (the first two determine one side, the third determines the opposite side position).

  1. Click Three-Point Rectangle Three-point rectangle.
  2. Left-click to specify the first, second, and third points in sequence.

Two-Point Rectangle

Draw a rectangle through two diagonal points.

  1. Click Two-Point Rectangle Two-point rectangle.
  2. Left-click to specify the first and second points.

Three-Point Circle

Determine a circle's position and size through three points on the circle.

  1. Click Three-Point Circle Three-point circle.
  2. Left-click to specify the first, second, and third points in sequence.

Two-Point Circle

Determine a circle's position and size through its diameter.

  1. Click Two-Point Circle Two-point circle.
  2. Left-click to specify the first point (one end of the diameter).
  3. Left-click to specify the second point (the other end of the diameter).

Center Circle

Draw a circle by specifying the center and radius.

  1. Click Center Circle Center circle.
  2. Left-click to specify the center position.
  3. Left-click to specify a point on the circle to determine the radius.

Extend

Extend a target linear entity to a reference entity boundary.

  1. Click Extend Extend.
  2. Specify the target linear entity to extend.

Break

Break a linear entity at a specified point on the line.

  1. Click Break Break.
  2. Specify the point on the linear entity where you want to break it.

Merge

Merge two linear entities with connected vertices into one.

  1. Click Merge Merge.
  2. Specify the first linear entity to merge.
  3. Specify the second linear entity connected to the first entity's vertices.

Trim

Trim a specified edge of a selected linear entity. The specified edge disappears; if the trim object has one line segment, it is deleted. When the trim edge intersects other entities, it precisely terminates them at the trim edge boundary.

  1. Click Trim Trim.
  2. Specify the trim edge.

Intersect

Connect a linear entity with another linear entity.

  1. Click Intersect Intersect.
  2. Left-click to specify the first linear entity.
  3. Left-click to specify the second linear entity.

Clone

Clone selected entities and move them to a specified position. Copied entities move based on the distance and direction between the base point and the second point.

  1. Click Clone Clone (or select entities first).
  2. Specify the entities to clone, then press Enter (skip if pre-selected).
  3. Specify the base point.
  4. Specify the second point. The copied entities move to the new position.

Move

Move selected entities to a new position. Objects move based on the distance and direction between the base point and the second point.

  1. Click Move Move (or select entities first).
  2. Specify the entities to move, then press Enter (skip if pre-selected).
  3. Specify the base point.
  4. Specify the second point. The objects move to the new position.

Delete

Delete specified entities.

  1. Select the entities to delete.
  2. Click Delete Delete.