Transparent commands can be issued at the Command: prompt while
running other commands without exiting the current command. The
transparent command will run and then return to the current
command. To run a transparent command, you can either type in the
command name or pick a button on the Transparent Command toolbar.
There are nine Carlson transparent commands for point input and one
for entity selection. The point commands can be used at any command
prompt that is for a point location. The selection command can be
used at any "Select objects" or "Select entities" prompt.
'2: Gets the 2D (x,y)
coordinate by point number from the current coordinate file. You
can enter a single point number or a range of points (ie 1-10).
'3: Gets the 3D (x,y,z) coordinate by point number from the current coordinate file.
'CL: Gets a point by station-offset from a centerline. The routine prompts for a centerline, station and offset left or right. The centerline can by defined by a centerline file, segment on a polyline or linework entity. The position along the centerline can be specified by entering the station, picking a point that gets projected onto the centerline, or by a distance factor. While picking the position along the centerline, the program shows the station and offset of the cursor in real-time. The 'CL command can be used as a Perpendicular From snap by picking a centerline and entering a station to come perpendicular from (the routine defaults to the station of the last point) and then entering an offset for the perpendicular distance.
'PIPT: Gets a point that is the PI position for an arc.
The routine prompts to select an arc.
'CENTROID: Gets a point that is the centroid position for
a closed polyline. The routine prompts for the polyline to
process.
'TRAVPT: Gets a point by angle and distance from a
starting point.
'TANGPT: Gets a point that is tangent to the selected
centerline or polyline. The routine prompts for the centerline,
station and distance. The station defaults to the position along
the centerline of the last picked point.
'BBPT: Gets a point by Bearing-Bearing Intersection. The
routine follows the same prompts as the Bearing-Bearing Intersect
command in the COGO menu.
'BDPT: Gets a point by Bearing-Distance Intersection. The routine follows the same prompts as the Bearing-Distance Intersect command in the COGO menu.
'DDPT: Gets a point by Distance-Distance Intersection.
The routine follows the same prompts as the Distance-Distance
Intersect command in the COGO menu.
'FILTER: Makes a selection set of entities using an
entity property filter. Available properties to filter include
layer, level, type, style, linetype, size and color. For each
property, you can choose whether to include or exclude from the
selection using this property. When using multiple properties for
the filter, they are combined using an AND operator so that all
properties must match to pass the filter.