Draw modes

Three drawing modes allow for the creation of segments and nodes with varying levels of constrains.

Toolbar

The toolbar on the top-middle holds the following types of tools

icon	label	description
	Active Draw	When toggled, draw options activate (Shortcut D)
	Snap to Point Only	When toggled, only joins are allowed
	Snap to Surface	When toggled, snap tp surface as well as joins are allowed
	Snap to elevation	Disabled. When toggled, all points will be placed at the specified Elevation. (in development)
	Delete	When toggled, any selection in the scene will trigger automatic delete

note

Pressing D toggles the Draw tool on and off

Pressing Q, W or E resets the starting position of the proposed segment

Draw by Surface

While in Draw Mode, this tool only allows the creation of points and segments that coincide with a Surface. The 'Z' part of the 3D vertex will snap to the 'Z' part of the Surface closest to the camera.

note

Shortcut W (while in Draw D Mode)

Draw by Connect

While in Draw Mode, this tool only allows the creation of new segments from existing points. A segment can be created by connecting two existing points, or by attaching an existing point to an existing segments (which creates a new point at the intersection of the existing segment)

note

Shortcut Q (while in Draw D Mode)

Draw by Elevation

While in Draw Mode, this tool allows the create of new segments entirely from a reference 'Z' elevation.

note

Shortcut E (while in Draw D Mode)