Abstract: Provided is an apparatus and method of automatically extracting a sweep/extrude/revolve feature shape from atypical digital data, including a scanner which scans a 3D object so as to provide 3D scan data indicating a shape of the 3D object, and a computing device which extracts a feature shape from a collection of the 3D scan data collected from the scanner, wherein the computing device includes an extracting means for extracting multiple points from the collection of the 3D scan data and producing initial section from the extracted multiple points; an aligning means for aligning the sections so that shapes of the sections are coincided with each other; a compensating means for forming an initial path, generating an initial profile and then compensating the path; and a modeling means for performing a modeling function using the compensated path and profile.

Abstract: A method for detecting two dimensional sketch data from source model data for three dimensional reverse modeling. The method includes the steps of detecting optional model data, establishing X-axis, Y-axis and Z-axis of the model data depending upon a reference coordinate system information inputted from a user, and setting a work plane for detecting two dimensional section data of the model data; projecting, on the work plane, two dimensional section data to be detected from the model data or polylines detected by designating a detection position; detecting two dimensional projected section data of the model data projected on the work plane, and dividing the two dimensional projected section data into feature segments depending upon a curvature distribution; and establishing a constraint and numerical information in accordance with connection of the divided feature segments of the two dimensional projected section data, and creating two dimensional sketch data.

Abstract: A system and a method of guiding a real-time inspection using a 3D scanner are provided. The system and the method of guiding a real-time inspection using a 3D scanner allow an operator to perform an accurate and swift inspection of an object to be measured so as to meet a designer's design intentions. For that purpose, 3D shape information of an object to be measured is detected using a scanner and shape information and inspection guide information of the object stored in a data storage unit, and inspection information of the object for judging the validity of the measurement information detected from the scanner is checked through a display unit. After that, the scanner is operated to compare the measurement information detected by the scanner with the inspection information so as to judge the validity of the measurement. Therefore, an operator can accurately understand a designer's intentions for inspection to perform measurement.

Abstract: Disclosed is a system and method for allowing analysis results of scan data to have supplemental geometry and various measurements generated from the supplemental geometry or mutual common relations between geometric tolerances, and when the scan data changes, the analysis results according to the related data are recalculated in real time in order to simplify the repetitive inspection process according to the scan data changes.

Abstract: A method for detecting two dimensional sketch data from source model data for three dimensional reverse modeling. The method includes the steps of detecting optional model data, establishing X-axis, Y-axis and Z-axis of the model data depending upon a reference coordinate system information inputted from a user, and setting a work plane for detecting two dimensional section data of the model data; projecting, on the work plane, two dimensional section data to be detected from the model data or polylines detected by designating a detection position; detecting two dimensional projected section data of the model data projected on the work plane, and dividing the two dimensional projected section data into feature segments depending upon a curvature distribution; and establishing a constraint and numerical information in accordance with connection of the divided feature segments of the two dimensional projected section data, and creating two dimensional sketch data.

Abstract: A reverse modeling method using mesh data as a feature to allow reverse modeling to be conducted by following a procedure of an original designer includes the steps of detecting optional model data, setting the model data as a feature, and establishing a reference coordinate system of set mesh data; establishing a work plane on which a sketch of the set mesh data can be projected; projecting section data of the mesh data on the work plane; dividing data projected on the work plane into feature segments depending upon curvature distributions, and producing divided segments as sketch data; and producing a three dimensional feature from the sketch data which corresponds to a shape of the mesh data, and storing the produced three dimensional feature as model data, wherein the produced sketch data and three dimensional feature are parametrically connected with each other.

Abstract: Disclosed is a system and method for allowing analysis results of scan data to have supplemental geometry and various measurements generated from the supplemental geometry or mutual common relations between geometric tolerances, and when the scan data changes, the analysis results according to the related data are recalculated in real time in order to simplify the repetitive inspection process according to the scan data changes.

Abstract: A method for detecting two dimensional sketch data from source model data for three dimensional reverse modeling. The method includes the steps of detecting optional model data, establishing X-axis, Y-axis and Z-axis of the model data depending upon a reference coordinate system information inputted from a user, and setting a work plane for detecting two dimensional section data of the model data; projecting, on the work plane, two dimensional section data to be detected from the model data or polylines detected by designating a detection position; detecting two dimensional projected section data of the model data projected on the work plane, and dividing the two dimensional projected section data into feature segments depending upon a curvature distribution; and establishing a constraint and numerical information in accordance with connection of the divided feature segments of the two dimensional projected section data, and creating two dimensional sketch data.