Method for visualizing a plan in real dimensions and for constructing an object

A method of visualizing a plan in real dimensions, wherein,

• in a calibration step, using a grid reflection method, a transmission pattern is projected onto a projection surface by means of a projection unit, and a reception pattern reflected from the projection surface is detected by at least two sensor units, and a surface shape and a location of the projection surface in relation to a position of the projection unit and to a position of the sensor units are detected by means of a computer unit connected to the projection unit and the sensor units, based on a distortion of the reception patterns in comparison to the transmission pattern, and
• a projection distortion is performed on the plan by means of the computer unit based on the surface shape and the location of the projection surface in relation to the projection unit, as detected in the calibration step, and the distorted plan is projected by the projection unit onto the projection surface in such a way that the projected plan on the projection surface corresponds to an undistorted, plane representation of the plan in real dimensions,
• wherein the calibration step is repeated after a predetermined period of time, after a change in a temperature of the projection unit by more than a predetermined threshold value, as detected by means of a temperature sensor, after a user input on the computer unit, and/or after a shock or movement of the projection unit and/or the sensor units, as detected by means of a position sensor.

A method of visualizing a plan in real dimensions, wherein,

• in a calibration step, using a grid reflection method, a transmission pattern is projected onto a projection surface by means of a projection unit, and a reception pattern reflected from the projection surface is detected by at least two sensor units, and a surface shape and a location of the projection surface in relation to a position of the projection unit and to a position of the sensor units are detected by means of a computer unit connected to the projection unit and the sensor units, based on a distortion of the reception patterns in comparison to the transmission pattern,
• a projection distortion is performed on the plan by means of the computer unit based on the surface shape and the location of the projection surface in relation to the projection unit, as detected in the calibration step, and the distorted plan is projected by the projection unit onto the projection surface in such a way that the projected plan on the projection surface corresponds to an undistorted, plane representation of the plan in real dimensions,
• detecting a number of constructional elements arranged on the projection surface by means of the sensor units;
• and
• comparing the detected number of constructional elements with a number of constructional elements as intended in the projected plan.