Abstract: A leader line arrangement position determining apparatus includes a receiving unit, a determining unit, and an arranging unit. The receiving unit receives designation of a position of a viewpoint to display an object in a three-dimensional CAD space in which the object is arranged. The determining unit, when the three-dimensional CAD space in which the object is arranged is displayed from the designated viewpoint, determines a shape of the object displayed when viewed from the viewpoint. The arranging unit arranges one end of a leader line at a position determined from the determined shape of the object.

Abstract: A display control method executed by a computer, includes: obtaining configuration information of an assembly; displaying a first image and a second image in a first area, the first image corresponding to an assembling part excluding an individual component from among the assembling part and the individual component belonging to the assembly indicated by the configuration information, the second image corresponding to the assembly; and displaying, in response to selection of the second image, a list of images in a second area, the list of images including a third image corresponding to the assembling part and a fourth image corresponding to the individual component.

Abstract: A selection control method includes: acquiring configuration information of an assembled article; displaying a three-dimensional shape image of the assembled article based on the configuration information; specifying a first element group included in the assembled article in response to a selection of a range in the three-dimensional shape image, the first element group corresponding to the range; and selecting a specific element set as a unit when a ratio of elements included in the first element group among elements associated with the specific element set exceeds a predetermined value, the specific element set included in the assembled article, and selecting each element included in the first element group respectively when the ratio of the elements included in the first element group among the elements associated with the specific element set does not exceed the predetermined value.

Abstract: An assembly sequence generating apparatus includes a computer that has a display control unit (301) that causes a display unit to display a 3-D model; a setting unit (302) that, when parts included in the 3-D model displayed on the display unit are sequentially selected, sets the selected parts to not be displayed; and a storing unit (304) that stores to a memory unit, a reverse sequence of a sequence of the selection of the parts as an assembly sequence of the 3-D model.

Abstract: A computer-readable medium stores a program causing a computer to execute a process including selecting a model from a storage device storing assembly data of an assembly; projecting in multiple directions, the selected model to a first area in a color different from a background color of the first area to generate first projection images, and to a second area equivalent in size to the first area, the model in a different color and another model in the same color as the background color, to generate second projection images; comparing the first and second projection images, according to verification direction to calculate scores indicating matching degree between the projection images; and determining as a disassembly direction for the model, a direction opposite to the verification direction of the projection image having the highest calculated score, to associate and store the disassembly direction and the model to the storage device.

Abstract: A leader line arrangement position determining apparatus includes a receiving unit, a determining unit, and an arranging unit. The receiving unit receives designation of a position of a viewpoint to display an object in a three-dimensional CAD space in which the object is arranged. The determining unit, when the three-dimensional CAD space in which the object is arranged is displayed from the designated viewpoint, determines a shape of the object displayed when viewed from the viewpoint. The arranging unit arranges one end of a leader line at a position determined from the determined shape of the object.

Abstract: An assembly sequence generating apparatus includes a computer that has a display control unit (301) that causes a display unit to display a 3-D model; a setting unit (302) that, when parts included in the 3-D model displayed on the display unit are sequentially selected, sets the selected parts to not be displayed; and a storing unit (304) that stores to a memory unit, a reverse sequence of a sequence of the selection of the parts as an assembly sequence of the 3-D model.

Abstract: An estimating apparatus for estimating a degree of ease of parts removal, uses design data concerning an assembly that includes a given part as a constituent element. The degree of ease of parts removal apparatus refers to the design data and calculates the degree of ease of removal in a case of removing the given part from a given direction, based on a ratio of an area of the part when the assembly is seen from the given direction to an area of the part as seen from the given direction, without a visual field being blocked by other parts.

Abstract: A computer-readable medium stores a program causing a computer to execute a process including selecting a model from a storage device storing assembly data of an assembly; projecting in multiple directions, the selected model to a first area in a color different from a background color of the first area to generate first projection images, and to a second area equivalent in size to the first area, the model in a different color and another model in the same color as the background color, to generate second projection images; comparing the first and second projection images, according to verification direction to calculate scores indicating matching degree between the projection images; and determining as a disassembly direction for the model, a direction opposite to the verification direction of the projection image having the highest calculated score, to associate and store the disassembly direction and the model to the storage device.

Abstract: A database management program, a database management apparatus and a database management method can determine the sameness of shape data at high speed.

Abstract: A database management program, a database management apparatus and a database management method can determine the sameness of shape data at high speed.

Abstract: A graphical element selection program facilitates the selection of a concave portion of a model, by introducing a water source model with which an image of water flowing down from a water source can be conjured and selecting the concave portion in which the water is accumulated from the model.

Abstract: Grid space designation information and grid plane designation information are acquired. The grid space designation information includes a width of the three-dimensional grid and a distance between two points of the three-dimensional grids. The grid plane designation information includes a display width of the three-dimensional grid and a display position at which the three-dimensional grid is to be displayed. Only that portion of the three-dimensional grids that is defined by the grid space designation information and the grid plane designation information is displayed.

Abstract: A graphical element selection program facilitates the selection of a concave portion of a model, by introducing a water source model with which an image of water flowing down from a water source can be conjured and selecting the concave portion in which the water is accumulated from the model.