CAD tip # 9763:

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Lasso - new method for selecting objects in AutoCAD 2015.

AutoCAD 2015 introduces a new option for object selection - "lasso". Selecting objects by drawing a freehand boundary curve (similar to raster editors or Fusion 360) can be activated by pressing and holding the left mouse button and dragging along the requested boundary. Similarly to selecting with a rectangular window, dragging to the left invokes crossing selection, dragging to the right invokes full enclosing (the whole object must be caught in the lasso). Both modes can be toggled by pressing the spacebar during dragging (do not depress the mouse button). A second spacebar press switches to the Fence mode - will select objects intersected by a freehand curve you draw by dragging.

You can influence the lasso mode behaviour by a couple of undocumented variables. The environment (not system) variables LassoTimeTrigger, LassoDistanceTrigger and LassoTimeThreshold preset the triggers for the lasso mode and its parameters. You can set the variables with the LISP function (setenv) or with the command SETENV (in AutoCAD LT).

LassoTimeTrigger - e.g. (setenv "LassoTimeTrigger" "666") - primary timer for the lasso mode, by default 500 ms
LassoDistanceTrigger - e.g. (setenv "LassoDistanceTrigger" "32") - number of pixels you drag your mouse to invoke the lasso mode, by default 16 pixels (increase when you need to use small rectangular selection windows)
LassoTimeThreshold - e.g. (setenv "LassoTimeThreshold" "300") - minimum mouse-press time to invoke the lasso mode, by default 100 ms

(the variable names are case-sensitive)

ACAD2015LT2015ADT2015ACADM2015Civil2015Plant2015

* CAD

1.4.2014 19014×

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applies to: AutoCAD 2015 · AutoCAD LT 2015 · AutoCAD Architecture 2015 · AutoCAD Mechanical 2015 · Civil 3D 2015 · AutoCAD Plant 3D 2015 ·

See also:
Tip 13604:	Importing points from a Shape file as symbols/blocks mapped to object data.
Tip 13561:	Beware of "permanently" hidden objects in DWG drawings.
Tip 13559:	How to find the number of faces of a 3D mesh object in Fusion 360?
Tip 13522:	LookupXLS - populating DWG texts from Excel spreadsheets.
Tip 13452:	HideItem - hiding individual items in AutoCAD arrays

Selected tip: How to convert a series of TEXT objects to a single MTEXT object?

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