Abstract: In the case where a three-dimensional image including a plurality of element figures, such as a quadrangular plane, a curved surface including a ridgeline, and a cylinder, is edited using an image editing apparatus such as a three-dimensional CAD apparatus, when one element figure in the three-dimensional image is specified, other element figures connected to the specified one element figure, or other element figures included in the same three-dimensional image in which the one element figure is included are retrieved, and other element figure in the retrieved other element figures, which was determined as having a specific relationship to the one element figure is related to the one element figure. Then, the specified element figure and the element figures related to the specified element figure are edited collectively based on an operation received by the image editing apparatus.

Abstract: In the case where a three-dimensional image including a plurality of element figures, such as a quadrangular plane, a curved surface including a ridgeline, and a cylinder, is edited using an image editing apparatus such as a three-dimensional CAD apparatus, when one element figure in the three-dimensional image is specified, other element figures connected to the specified one element figure, or other element figures included in the same three-dimensional image in which the one element figure is included are retrieved, and other element figure in the retrieved other element figures, which was determined as having a specific relationship to the one element figure is related to the one element figure. Then, the specified element figure and the element figures related to the specified element figure are edited collectively based on an operation received by the image editing apparatus.

Abstract: In the case where a three-dimensional image including a plurality of element figures, such as a quadrangular plane, a curved surface including a ridgeline, and a cylinder, is edited using an image editing apparatus such as a three-dimensional CAD apparatus, when one element figure in the three-dimensional image is specified, other element figures connected to the specified one element figure, or other element figures included in the same three-dimensional image in which the one element figure is included are retrieved, and other element figure in the retrieved other element figures, which was determined as having a specific relationship to the one element figure is related to the one element figure. Then, the specified element figure and the element figures related to the specified element figure are edited collectively based on an operation received by the image editing apparatus.

Abstract: To provide a CAM system and method which can facilitate change of a machining posture and a machining procedure, and can aid an operation of forming an optimum machining path. Machining features capable of being integrated into one are obtained and a machining procedure for the integrated machining feature is obtained. Based on the machining procedure, design data is converted to manufacturing data. The manufacturing data capable of machining the integrated machining feature together can be therefore obtained in contrast with the case of separately machining the individual machining features which constitute the integrated machining feature.

Abstract: To provide a CAM system and method which can facilitate change of a machining posture and a machining procedure, and can aid an operation of forming an optimum machining path. Machining features capable of being integrated into one are obtained and a machining procedure for the integrated machining feature is obtained. Based on the machining procedure, design data is converted to manufacturing data. The manufacturing data capable of machining the integrated machining feature together can be therefore obtained in contrast with the case of separately machining the individual machining features which constitute the integrated machining feature.

Abstract: When three-dimensional shape information is represented by a feature-based model, a fillet/chamfer feature is searched for and accumulated. When three-dimensional shape information is not represented by a feature-based model, information of a fillet surface/chamfer surface is searched for and accumulated. From corner shapes accumulated, a corner shape to be removed is selected. The feature or the information of the surface element selected is removed from the three-dimensional shape information. Projection is performed on the basis of the three-dimensional information after the removal, thereby obtaining two-dimensional shape information.

Abstract: In the case where a three-dimensional image including a plurality of element figures, such as a quadrangular plane, a curved surface including a ridgeline, and a cylinder, is edited using an image editing apparatus such as a three-dimensional CAD apparatus, when one element figure in the three-dimensional image is specified, other element figures connected to the specified one element figure, or other element figures included in the same three-dimensional image in which the one element figure is included are retrieved, and other element figure in the retrieved other element figures, which was determined as having a specific relationship to the one element figure is related to the one element figure. Then, the specified element figure and the element figures related to the specified element figure are edited collectively based on an operation received by the image editing apparatus.

Abstract: A partial reprojection device includes a reprojection processing portion for controlling a partial reprojection process, a modeling kernel for performing a contour line process, a hidden line process and other processes. The reprojection processing portion includes an associative analysis processing portion for analyzing information of two-dimensional projection to be a reprojection target, a drawing processing portion for deciding a three-dimensional element to be a projection target from three-dimensional shape data and a projection condition in association with the modeling kernel, a drawing data generation processing portion for generating the decided three-dimensional element as a two-dimensional element on the drawing, and an associative setting processing portion for grouping the generated two-dimensional elements for each part and for setting a relationship with various conditions and the models.