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: An information processing apparatus displays a shape of an object on a display device by using numerical values on a coordinate axis. The apparatus includes a calculating unit that calculates a minimum rectangular parallelepiped including the component by using numerical values indicative of a shape of the component; an outer-shape calculating unit that replaces every component constituting the object and calculates numerical values indicative of an outer shape of an object formed by collecting every replaced component into one; a determining unit that determines whether the component makes contact with the outer shape by using the numerical values indicative of the outer shape and the numerical values indicative of the shape of the component; and a displaying unit that displays on the display device an object composed of only components as making contact.

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 CAD-system projection method for a further improvement in user convenience by preventing unnecessary dimension lines from being added when a projection drawing is created from a three-dimensional model. A pre-projected projection drawing is used to set, as objects to be projected, a three-dimensional element of a component in an edit state and a scale line added to the three-dimensional line, the three-dimensional element being a projection source of a two-dimensional element in the projection drawing. Thus, a three-dimensional element that is not in the edit state, a dimension line therefore, and a three-dimensional element that is not a projection source of the two-dimensional element in the projection drawing, and a scale line for the three-dimensional line are not projected. Consequently, it is possible to obtain a projection drawing that includes necessary projection lines and a dimension line therefore.

Abstract: An information processing apparatus displays a shape of an object on a display device by using numerical values on a coordinate axis. The apparatus includes a calculating unit that calculates a minimum rectangular parallelepiped including the component by using numerical values indicative of a shape of the component; an outer-shape calculating unit that replaces every component constituting the object and calculates numerical values indicative of an outer shape of an object formed by collecting every replaced component into one; a determining unit that determines whether the component makes contact with the outer shape by using the numerical values indicative of the outer shape and the numerical values indicative of the shape of the component; and a displaying unit that displays on the display device an object composed of only components as making contact.

Abstract: An interference checking method, a computer-aided design device, and an interference checking program determining whether an interference has occurred between components of a product. The interference checking method includes loading geometric form data of components acquired from a second storage section and checking whether an interference has occurred and evaluating a position design of the product in accordance with the geometric form data of the components that have been loaded in the second storage section.

Abstract: To provide a CAD-system projection method for a further improvement in user convenience by preventing unnecessary dimension lines from being added when a projection drawing is created from a three-dimensional model. A pre-projected projection drawing is used to set, as objects to be projected, a three-dimensional element of a component in an edit state and a scale line added to the three-dimensional line, the three-dimensional element being a projection source of a two-dimensional element in the projection drawing. Thus, a three-dimensional element that is not in the edit state, a dimension line therefore, and a three-dimensional element that is not a projection source of the two-dimensional element in the projection drawing, and a scale line for the three-dimensional line are not projected. Consequently, it is possible to obtain a projection drawing that includes necessary projection lines and a dimension line therefore.

Abstract: An input section allows a user to input an input signal including selection information and operational direction information. A dimensional constraint data storing section stores dimensional constraint data of a graphic object. An extent data storing section stores extent data of the graphic object. An arithmetic section determines a moving direction of a selected graphic object on the basis of the dimensional constraint data and data of an initial moving direction. The selected graphic object is detected on the basis of the selection information. The initial moving direction is detected on the basis of the operational direction information. The arithmetic section generates data representing arrangement of a scale along the moving direction of the selected graphic object.

Abstract: When a user specifies a graphic element to which he or she wants to attach a dimension line in a drawing, a dimension-line creation instructing unit identifies the graphic-element ID. Then, the user specifies a position at which he or she wants to attach the dimension line in the specified graphic element. When the user specifies a point, the coordinate values of the specified point are acquired by the dimension-line creation instructing unit. Among points constituting the graphic element (constituent points), a constituent point that is nearest to the coordinate values replaces the acquired coordinate values. Position data regarding the constituent point is represented by an offset with respect to a reference point in the graphic element. A dimension-line creating unit determines an actual position at which the dimension line is to be actually created by using a predetermined method and creates the dimension-line data.

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.