Abstract: A geodetic device comprises three device components, two axes of rotation, and two angle sensors such that the device components are rotatable with respect to each other and their rotational positions are determinable, and an inclination sensor system. A method for determining a characteristic of the device comprises an alignment of the second device component with respect to the first device component into a plurality of different rotational positions, whereby in each rotational position of the plurality of rotational positions a measurement value is determined from the first angle sensor, a measurement value is determined from the second angle sensor, and a measurement value is determined for the orientation of the inclination sensor system.

Abstract: A surveying appliance for surveying targets has a targeting unit and a remote control unit for prompting changes in the orientation of the targeting unit, equipped with measurement functionality for determining a three-dimensional orientation of the remote control unit or for determining movements by the remote control unit. The surveying appliance also has an evaluation and control unit. The extent or speed of the changes in the orientation of the targeting unit can be scaled to corresponding changes in an orientation or speed of change of orientation of the remote control unit such that at least two targeting modes having different levels of transmission ratio are provided. The surveying appliance can be used with corresponding handheld, moving remote control units, computer program products for providing, controlling and performing a targeting functionality for the surveying appliance and methods for tracking and surveying targets using the surveying appliance.

Abstract: A bow sight with at least one sight pin mounted to a frame assembly. At least one optical fiber is attached to the sight pin. The optical fiber is exposed to gather ambient light and to transmit light to a sight point located within the frame assembly. The eye alignment assembly includes an optical structure mounted to the frame assembly including a sight point of an optical fiber located near a proximal end of the optical structure and a lens with alignment indicia located at a distal end of the optical structure. An adjustment system permits the optical structure to be reoriented relative to the frame assembly. The eye alignment assembly provides an indication of orientation of the shooter relative to the bow in at least two degrees of freedom.

Abstract: A rotation laser, in particular for surveying tasks, includes a remote control unit. The rotation laser has at least one operating mode necessary for measurement operation that is configured to be controlled exclusively by the remote control unit.

Abstract: The present invention is a mechanical device used in the hunting and gaming industries. The device is a system called the EKG targeting system, which is comprised of a scope, which, in one embodiment is comprised of a laser rangefinder, an L-shaped sliding mount, a sliding face-mount bracket, a trigger release mounting bracket, bolts and nuts to secure pieces of the system together, a pin sight, a mounting for the pin sight and a trigger release. In another embodiment, the system is comprised of almost any scope used in archery targeting, an L-shaped sliding mount, a sliding face-mount bracket, a trigger release mounting bracket, bolts and nuts to secure pieces of the system together and a trigger release.

Abstract: A robotic laser-pointing apparatus has an instrument center, a first rotation axis, a second rotation axis, and a pointing axis, with the first rotation axis, the second rotation axis and the pointing axis in a known relationship to the instrument center. A laser source provides a pointing-laser beam along the pointing axis. A pointing drive system aims the laser beam by rotating the pointing axis about the instrument center in response to a pointing-direction control. Focusing optics having a focusing-optics drive serve to focus the pointing-laser beam in response to a focusing-optics control. A processor, responsive to target-position information, generates the pointing-direction control and the focusing-optics control. Some embodiments include an electronic-distance-measurement system having a measurement beam. Some embodiments provide for compensation of aiming errors of the pointing-laser beam and the measurement beam.

Abstract: A civil engineering machine has a machine control unit configured to determine data which defines the position and/or orientation of a reference point on the civil engineering machine in relation to a reference system independent of the position and orientation of the civil engineering machine. A geometrical shape to be produced on the ground is preset in either a machine control unit or a field rover control unit. The field rover is used to determine a position of at least one identifiable point of the preset geometrical shape in the independent reference system. Curve data defining a desired curve in the independent reference system, corresponding to the preset shape, is determined at least partially on the basis of the position of the at least one identifiable point of the preset geometrical shape in the independent reference system.

Abstract: A bow sight that decouples the shooter's bow cant from elevation adjustments. A segmented support assembly includes a proximal portion and a distal portion. The proximal portion is configured to attach to the bow. The distal portion is rotatably attached to the proximal portion and configured to rotate around a Y-axis relative to the proximal portion. A micro-adjust controls the rotational position around the Y-axis of the distal portion relative to the proximal portion. An elevation assembly is attached to the distal portion. A bezel assembly is attached to the elevation assembly. The elevation adjustment moves the bezel assembly along a substantially vertical axis while the bow is held at a bow cant greater than zero. The micro-adjust decouples the shooter's bow cant from operation of the elevation assembly. A windage assembly is optionally located between the elevation assembly and the distal portion.

Abstract: The invention encompasses archery bow sights that comprise at least one lens configured to eliminate parallax. In one aspect of the invention, the site includes at least one plus power ribbon accommodating lens supported by a support means. A reference means is forwardly mounted in front of the lens so as to be located along the archer's line of sight between the lens and a target when the archer is shooting the bow. The optical lens of the sight eliminates parallax so that the archer's eye does not need to realign his line of sight between an archery peep, the reference means, and the target when the archer changes elevation of the bow.

Abstract: Rotating construction laser device with a grade mechanism, including a code element and a position detection device for providing and detecting a feedback position information, and a leveling mechanism, which supports a lens barrel tiltably and is designed to tilt the lens barrel in order to have the level position detected by a tilt sensor and therewith to level the grade arm, the code element or the position detection device is arranged directly on the grade arm, and the feedback position information directly depends on the position of a reference point on the grade arm, the reference point being defined by the code element or the position detection device, respectively, thus allowing to deduce a position of the grade arm directly from the feedback position information, and/or to calculate a tilting angle of the grade arm with respect to the lens barrel directly from the feedback position information.

Abstract: A method for determining a top dead-center of a wheel. The method includes (i) removably connecting a self-aligning laser guide to a wheel balancer shaft; (ii) allowing gravity to position said self-aligning laser guide such that its longitudinal axis is substantially perpendicular to a floor surface; and (iii) powering said self-aligning laser guide to indicate said top dead-center of said wheel.

Abstract: The present disclosure is directed to a shaft alignment tool including a center hub and a plurality of adjustable arms. The plurality of adjustable arms are coupled to the center hub and include a proximal end section and a distal end section. The shaft alignment tool further includes one or more roller assemblies mounted on each distal end section of each adjustable arm.

Abstract: The present disclosure is directed to a shaft alignment tool including a base, a rotational body mounted on the base for relative rotation with respect to the base, and an alignment meter coupled to the rotational body.

Abstract: A construction surveying device having a base, an upper part mounted on the base and can be rotated about an axis of rotation, a sighting unit having a laser source which is designed to emit a laser beam and a laser light detector, and an evaluation and control unit, a first rotary drive and a second rotary drive enable the upper part and the sighting unit to be driven and aligned, a spatial alignment of the sighting unit with respect to the base can be detected using two goniometers, and coordinates for space points can be determined using the evaluation and control unit, the construction surveying device has a horizontal line projection functionality which, at least sometimes, takes place automatically after triggering and is intended to measure and mark space points along a horizontal line, running in a horizontal plane, on an arbitrarily shaped surface.

Abstract: A method of operating a laser reference system orients a reference plane of laser light generated by a transmitter so compensation is made for rake angles between the first and second axes of the transmitter and first and second non-orthogonal alignment axes. The transmitter includes an optical system arranged to generate a laser beam, the optical system projecting said laser beam radially along a rotational arc defined about a central rotational axis, thereby substantially defining a reference plane of laser light, and a positioning arrangement, coupled to said optical system, for adjusting the angular orientation of the optical system with respect to a first transmitter axis and with respect to a second transmitter axis. Detectors are arranged to detect reception of the laser beam.

Abstract: In one embodiment, a method for aligning a vehicle includes providing an optical instrument, mounted in the vehicle, the optical instrument providing an image viewable from the vehicle's standard operating position by an operator and the image including a symbolic optical projection. The method further includes providing an azimuth guidance cue in the operation area of the vehicle. The method further includes aligning the symbolic optical projection with the azimuth guidance cue by steering the vehicle.

Abstract: A construction laser system comprising at least one rotation laser which has a laser unit and a rotatable deflection means, a laser receiver has a laser beam detector which is designed to generate an output signal when the laser beam impinges on the laser beam detector. An evaluation unit for determining the position of the laser receiver relative to the reference surface and an indicator for the determined position. A controller where a known emission pattern is generated over a sequence of a plurality of revolutions by varying the emission of the laser beam in a manner temporally coupled to the revolution period of the deflection means, and the evaluation unit is designed to identify the reference surface using a sequence of output signals which are each generated by the laser beam detector when the rotating laser beam repeatedly successively impinges, which sequence corresponds to the known emission pattern.

Abstract: A geodetic target for use in geodesy includes a support, a measuring target supported by the support, an identifier supported by the support, and a controller. The identifier includes at least one identification element that is configured to be switchable between at least two optical states and has a first predetermined optical property in one optical state and does not have the first predetermined optical property in a further optical state. The controller is configured to change the state of the at least one identification element. A geodetic measurement instrument includes an identifier detection unit, a measuring unit, and a transmitter configured to address a receiver of the geodetic target and to transmit control commands to the same which effect the change of the optical state of the at least one identification element of the identifier of the geodetic target. A system includes the geodetic measurement instrument and geodetic target.

Abstract: Layout equipment for locating a plurality of positions at a construction site, and a method of using the layout equipment, contemplate a laser target rod having an elongated rod body and including retroreflective material on the rod body. The retroreflective material extends substantially the entire length of the rod body, and has scale markings visible thereon. A self-leveling laser transmitter at a known position projects a beam of laser light horizontally, and receives laser light reflected from the laser target rod. A remote control device signals the user of the layout equipment when the rod has been placed at a selected one of the plurality of positions. The layout equipment may also be used to determine relative locations in a previously built structure.

Abstract: A portable target comprising: (a) a complaint, energy-absorbing backer; (b) a target on a surface of said backer; and (c) a support mechanism for holding said surface of said backer in a vertical position.

Abstract: Systems and methods for sailboat mast alignment are provided. In some embodiments, a system for alignment of a sailboat mast comprises a mounting bracket configured for attachment to the mast, and one or more lasers pivotally connected to the mounting bracket to enable the one or more lasers to be positioned at an index angle relative to the mast on both sides of the mast.

Abstract: A method of determining a position of a point in a local coordinate system using a survey instrument comprising an integrated optical total station and digital level includes measuring an angle associated with the point. The angle may be measured about a vertical axis of the survey instrument, and the vertical axis may be substantially aligned with a local gravity vector. The method also includes determining a distance between the survey instrument and the point using an electronic distance measuring device and measuring a difference in height between a horizontal axis of the survey instrument and the point using a leveling staff positioned relative to the point. The horizontal axis may be substantially orthogonal to the vertical axis. The method also includes determining the position of the point in the local coordinate system using the angle, the distance, and the difference in height.

Abstract: A laser square gauge for use with an automobile for measuring camber, toe and wheel offset. The laser square gauge generates a vertical laser datum line off of the wheel. The visible line replaces the cumbersome use of jigs and string lines. The gauge is operable by a single user and generates an accurate, repeatable reference. The reference can be used to easily measure camber, offset, toe-in and toe-out of the other wheels, as well as car body and frame dimensions. The gauge permits easy maintenance of records to check set-up dimensions of each car for each environment, such as a race track. The gauge is particularly useful for setting up the alignment and suspension of high performance racing automobiles.

Abstract: A targeting viewing device is disclosed that couples a laser pointer to a viewing device such as binoculars or a spotting scope. In one embodiment the laser pointer includes a switch to selectively activate a laser beam to project a spot of light on a distant target so as to identify the target from within a group of potential targets to other observers of the targets. The viewing device may include a spotting scope, monocular, binocular or camera.

Abstract: A north-referenceable goniometer for azimuthal orientation determination of a sighting device has a base, a rotary part, a rotation angle encoder for determining a rotational position of the rotary part about an upright axis, a gyroscope fixed on the rotary part and having a measuring device oriented orthogonally to the upright axis for determining a component of the Earth rotation vector, and an evaluation unit for determining the azimuthal angle of the geographical north pole. The goniometer also includes an acceleration sensor, and the evaluation unit is formed such that, using the evaluation unit, the determined component of the Earth rotation vector is corrected by a sink rate of the goniometer, determined with the aid of the acceleration sensor, and a systematic measurement error of the gyroscope is corrected by determining measurement values of the component of the Earth rotation vector in at least three different rotational positions.

Abstract: A sighting device for a bow that includes a support assembly adapted to attach to the bow. A bezel assembly is attached to the support assembly. The bezel assembly includes a micro-adjust with a lead screw located adjacent to a bezel opening. A plurality of pin carriers each include a slider selectively moveable between an engaged position coupled to the lead screw and a disengaged position. As a result, each pin carrier is adapted to be selectively and independently displaced or not displaced by rotation of the micro-adjust. A plurality of sight pins are coupled to the pin carriers. Each sight pin includes a sight point at a distal end located in the bezel opening and a proximal end coupled to one of the pin carriers. The sight points are adapted to align the bow with a target viewed through the bezel opening.

Abstract: A bow sight that decouples the shooter's bow cant from elevation adjustments. A segmented support assembly includes a proximal portion and a distal portion. The proximal portion is adapted to attach to the bow. The distal portion is rotatably attached to the proximal portion and adapted to rotate around a Y-axis relative to the proximal portion. A micro-adjust controls the rotational position around the Y-axis of the distal portion relative to the proximal portion. An elevation assembly is attached to the distal portion. A bezel assembly is attached to the elevation assembly. The elevation adjustment moves the bezel assembly along a substantially vertical axis while the bow is held at a bow cant greater than zero. The micro-adjust decouples the shooter's bow cant from operation of the elevation assembly. A windage assembly is optionally located between the elevation assembly and the distal portion.

Abstract: The invention relates to a position determination method for a geodetic device having a distance and angle measuring functionality, such as a total station (1), a determination being made of the relative location of the geodetic device and reference points (2) marked with reflectors (P1-Pn) of a quantity of reference points, by measuring the distance (D1-Dn) and at least one angle (?i-?n, ?1-?n) from the geodetic device to the reference points as reference variables, the reference variables being determined in a device-based reference system. For the reference point quantity formed by the reference points (P1-Pn) and a reference point quantity of measurable reference points (A-G), the positions of which are known in an external reference system, common elements are identified, the relative location of the reference points (P1-Pn) being derived from the reference variables and the common elements being identified and associated based on the relative location of the reference points (P1-Pn).

Abstract: A system and method for measuring a pipe is provided. The system includes a frame rotatably receiving the pipe, a carriage movably positionable along the frame, a guide floatingly positionable about the carriage, at least one sensor for measuring a position of the pipe, and a measurement unit operatively linked to the sensor for collecting measurements therefrom. The guide has a mouth that receivingly engages the pipe and axially aligns therewith. The pipe is measured with the sensor(s) while moving at least one of the pipe, the carriage and the guide.

Abstract: Reference bores are selected in blade extender and one or more reference plates are provided at a height (h1; h2) from extender flange. A reference laser device is provided within reference bores which beam impinging on reference plates is in line with bore axis. A blade root bore is selected and a laser device is fitted therein such that a measuring laser beam impinging on plates is in line with axis of blade root bore. The measuring laser beam can be then assessed. A measuring tool is used having a first end to which laser devices can be attached or other devices such as a comparator, and a movable second end for being inserted within the corresponding bores with a tight fit.

Abstract: A hoist alignment apparatus and a method for aligning a hoist lift arm with a particular area on a frame are provided. The apparatus comprises a base defining a plane and a light operable to emit a light beam along an axis substantially orthogonal to the plane of the base, the light being held by a light holder attached to the base. The light may be replaced by an extendable rod. The hoist lift arm may be aligned by placing the apparatus on the arm and moving the arm until the light beam shines on the particular area or the tip of the extended rod points directly to the particular area.

Abstract: A method of determining an elevation of a point relative to a leveling instrument includes sending a first signal from a controller to the leveling instrument using a wireless link. The first signal indicates to the leveling instrument to automatically align an alignment unit of the leveling instrument with a reference target of a leveling staff. The method also includes receiving a second signal at the controller using the wireless link. The second signal is sent from the leveling instrument and indicates that the alignment unit is aligned with the reference target. The method also includes sending a third signal from the controller to the leveling instrument using the wireless link. The third signal indicates to the leveling instrument to automatically determine the elevation of the point relative to the leveling instrument.

Abstract: A laser measurement system operates to measure portions of a vehicle, such as a vehicle frame. The measurements are used, for example, to determine if the portions of the vehicle are bent or damaged. The measurement system includes a laser scanner and at least one target assembly that can be connected to a point of the vehicle. The laser scanner emits a laser beam that is detected by the target. Time and laser position information detected by the target are used to determine the location of the target, as well as the location of the point of the vehicle. The location of the point is then compared to an original location of the point to determine if damage has occurred.

Abstract: A method for measuring and optionally correcting the angular offset of two shafts which are connected to one another by way of two universal joints and a third shaft calls for the measurement heads of an optoelectronic alignment device to be mounted in the shafts in exactly two measurement positions. These measurement positions are offset by 180° to one another and are located in the plane of the three shafts.

Abstract: A method and apparatus for utilizing a vehicle wheel alignment system to guide the placement and orientation of a vehicle service apparatus or alignment fixture relative to the thrust line of a vehicle. A laser adapter for projecting a reference line is mounted to a steerable wheel of the vehicle, and is aligned relative to both a line of the vehicle and to the supporting surface on which the vehicle is disposed. The vehicle line is determined by the vehicle wheel alignment system, and the steerable wheel, together with the adapter, are steered relative to the determined vehicle line, such that a projected reference line defined by the position and orientation of the adapter is established parallel to both the supporting surface and the vehicle line. The placement and orientation of the vehicle service apparatus or alignment fixture is subsequently adjusted relative to the projected reference line.

Abstract: A system and processes for aligning an antenna boresight from a position which is internal to a structure on which the antenna is mounted is described. The system includes a laser tracking system and a plurality of targets disposed on a surface of the antenna.

Abstract: A method for helping to position a component on the wall of a structural element, including the steps: elaborating an image to be projected on the wall, from a virtual model of the structure and from the positioning of a projector with respect to the structure, and an additional motif providing positioning information of the piece with respect to the direction normal to the wall, projecting the image on the structural element by means of the projector; placing the base of the piece inside an outline of the image projected on the wall; and, while keeping contact between the piece and the structural element, modifying the positioning of the piece with respect to the direction normal to the wall, until the predefined set of points of the piece coincides with the motif.

Abstract: The invention provides a device and a method for relative positioning of an appliance having a shaft end in relation to fastening elements which are arranged at a distance to the longitudinal axis of the shaft end and at a distance in front of the end of the shaft end and is disposed for generation of a first and a second light fan which extend symmetrically along the longitudinal axis of the shaft end and form light lines extending over the end of the shaft end.

Abstract: A surveying and measuring device and method of using the same is provided. The device, which is particularly suited for determining or measuring a rotational position of an object, comprises an elongate rigid member extending radially away from a known center of an object. Distal ends of the rigid member downwardly project points which may be compared to, for example, survey markers or known points.

Abstract: A bow sight with an adjustable range finder is described herein. The sight of the present invention is affixed in substantially the same vertical position as the bow to which it is attached. The range finder of the present invention moves independently of the sight. As the archer applies pressure to a conveniently positioned trigger, a ranging pin is rotated in relation to a guide pin and, as a result, the archer must raise the bow to accommodate. The archer will therefore necessarily shoot at an increased trajectory to compensate for the increased distance between the archer and the target.

Abstract: A laser measurement system operates to measure portions of a vehicle, such as a vehicle frame. The measurements are used, for example, to determine if the portions of the vehicle are bent or damaged. The measurement system includes a laser scanner and at least one target assembly that can be connected to a point of the vehicle. The laser scanner emits a laser beam that is detected by the target. Time and laser position information detected by the target are used to determine the location of the target, as well as the location of the point of the vehicle. The location of the point is then compared to an original location of the point to determine if damage has occurred.

Abstract: A two-dimension layout system identifies points and their coordinates, and transfers identified points on a solid surface to other surfaces in a vertical direction. Two leveling laser light transmitters are used with a remote unit to control certain functions. The laser transmitters rotate about the azimuth, and emit vertical (plumb) laser planes. After being set up using benchmark points, the projected lines of the laser planes will intersect on the floor of a jobsite at any point of interest in a virtual floor plan, under control of a user with the remote unit. The laser light planes also project lines that will intersect along the ceiling at a point that is truly plumb above the crossing point on the floor. The laser planes also provide an “implied” plumb line that is projected in space, which is visible along a solid vertical surface between the intersecting floor and ceiling points.

Abstract: A sundial for telling apparent solar time and clock time across a range of latitudes and longitudes. A solar dial is formed with an index point and a noon hour point. A plurality of concentric latitude indicia are centered at the index point and at least one map indicium is overlaid by the concentric latitude indicia where the map indicium has geographic latitudes corresponding with the concentric latitude indicia on the solar dial. The solar dial also includes a plurality of solar time indicia radiating generally outward from the index point drawn with respect to the noon hour point according to the hour line equation at each concentric latitude indicia intercept. An elongated gnomon projects from the index point, whereby the sun's shadow cast by the gnomon intersects the solar time indicia in relation to the concentric latitude indicia to provide a reading of apparent solar time for the user's location on the map indicium.

Abstract: A node placement apparatus, system and method employ an optical source to define a grid for placement of nodes. The node placement apparatus includes a structure that provides a predetermined height and the optical source positioned at the predetermined height. The optical source is configured to produce an optical beam having a predetermined declination angle. The optical beam is configured to provide illumination of a plurality of discrete points on a surface to define the grid. The system further includes the nodes. The method of node placement includes locating the optical source above a fixed point on and at the predetermined height above the surface, illuminating the plurality of discrete points with the optical beam, and positioning a node at a selected discrete point of the plurality of discrete points illuminated by the optical beam.

Abstract: A pipe alignment tool includes a main body, a laser source, and a laser calibrator. The main body has a threaded external surface on a proximal end and a cylindrical bore at a distal end. The cylindrical bore has a central axis. The laser source has a proximal end that is removably received in the cylindrical bore. The laser source is configured to discharge a laser beam through a distal end of the laser source along a laser axis. The laser calibrator is configured to adjust the orientation of the laser source relative to the central axis to coaxially align the laser axis with the central axis.

Abstract: A method for locating a stem of a target tree is disclosed. The target tree is identified from a sensing dataset. At least one slice is created from the sensing dataset. The at least one slice includes at least a portion of the target tree. A tree stem location of the target tree is determined from the at least one slice. A system for locating a stem of a target tree is also disclosed. The system has a processor configured to implement the described method. The system also has a data input coupled to the processor and configured to provide the processor with the sensing dataset. The system further has a user interface coupled to either the processor or the data input.

Abstract: A digital solar compass has a planar image sensor (5) for capturing an image of a gnomon (1) perpendicular to the plane of the image sensor. A cover (12) protects the gnomon and image sensor. A signal processor (14) is arranged to determine the angle of a shadow cast by the sun and the gnomon from the image captured by the planar image sensor. The gnomon (1) may be mounted directly on the planar image sensor (5) or the shadow may be formed on a diffuser sheet (3) and projected onto the image sensor (5) using a lens (4).

Abstract: Systems, methods, and other embodiments associated with three-dimensional laser position systems are described. In one embodiment, a system includes first and second vertical laser plane transmitters and a horizontal laser plane transmitter. The first and second vertical laser plane transmitters are configured to emit first and second vertical laser planes, respectively, that are each rotatable about rotational axes. The horizontal laser plane transmitter has a fixed position relative to the rotational axis of the second vertical laser plane transmitter and emits a horizontal laser plane that is rotatable to position the horizontal laser plane at a pitch angle. The system is configured to translate between a three dimensional coordinate and positions of the first and second vertical laser transmitters and the horizontal laser transmitter, respectively, that will cause the first and second vertical laser planes and the horizontal laser plane to intersect at a the three dimensional coordinate.

Abstract: A method of azimuth determination includes determination of local star time and latitude, where the azimuth determination unit is fixed at an object and oriented relative to the local horizon or the vertical; two or more celestial bodies with known coordinates are selected among visible celestial bodies and the line of sight is aimed at celestial bodies in turn, after that elevations over the horizon or zenith ranges to celestial bodies, horizontal angles between bodies are measured and measured times are recorded; and local star time, site latitude and azimuth are calculated. An apparatus for azimuth determination comprising an orientation unit to orient relative to the local horizon or the vertical line, an optical unit to aim at point light sources, a horizontal angle measurement unit, an elevation measurement unit, a time measurement unit and a computation unit, characterized in that orientation, aiming, angle and time measurement units are connected to a computation unit.

Abstract: A two-dimension layout system identifies points and their coordinates, and transfers identified points on a solid surface to other surfaces in a vertical direction. Two leveling laser light transmitters are used with a remote unit to control certain functions. The laser transmitters rotate about the azimuth, and emit vertical (plumb) laser planes. After being set up using benchmark points, the projected lines of the laser planes will intersect on the floor of a jobsite at any point of interest in a virtual floor plan, under control of a user with the remote unit. An “active target” can be used to more automatically create benchmarks. A laser distance meter can be installed on base units to automatically scan a room or a wall to determine certain key features.