JPH11339075A - Selection system for three dimensional shape element - Google Patents

Abstract

PROBLEM TO BE SOLVED: To select three dimensional shape elements to be operated from a display image by a means which substituting a conventional mouse pointer, etc. SOLUTION: When the three dimensional shape elements are selected from the display image, the kind (solid, plane, ridge, etc.), of the shape elements to be operated is determined (S101) and a selected shape element candidate list is generated (S102). In this list, priority is given(S103) and in response to the input of a specific event, a display device emphasizes and displays the shape elements from the highest priority in the element selection list according to the priority.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-dimensional shape element selection system for selecting a three-dimensional shape element to be operated from a display graphic.

[0002]

2. Description of the Related Art Conventionally, in order to select a shape element to be operated from three-dimensional shapes displayed on a display device, a shape element displayed on a screen is picked using a mouse pointer or the like. It was common to do. However, when a complicated three-dimensional shape such as a wire frame is displayed, it is difficult to accurately pick the desired shape, and depending on the system, a shape element located far away from the viewpoint distance may be used. Some cannot be selected. Therefore, it is effective to be able to select a shape element to be operated without relying on a pick.

[0003]

When selecting a three-dimensional shape element displayed on a display or the like, simply picking the displayed shape element with a mouse causes the algorithm to enter the selection candidate list. There are cases where it is not possible to make a good choice due to the absence of the item. Therefore, an object of the present invention is to solve the problem by selecting a shape without relying on a pick.

[0004]

According to a first aspect of the present invention, in accordance with a repetitive input of a specific event, another shape element of the same type as the selected shape element of the operation target graphic is sequentially assigned priority and selected. And a system for selecting a three-dimensional shape element from a display figure.

According to a second aspect of the present invention, in the three-dimensional shape element selecting system according to the first aspect, the selecting means includes a shape whose phase connection is closest to the shape element picked first. A three-dimensional shape element selection system is characterized in that selection is performed by assigning priorities from elements.

According to a third aspect of the present invention, in the three-dimensional shape element selecting system according to the first aspect, the selecting means sets a priority order from a shape element having a short distance from the shape element picked first. This is a system for selecting a three-dimensional shape element, which is characterized by attaching and selecting.

According to a fourth aspect of the present invention, in the three-dimensional shape element selecting system according to the first aspect, the selecting means assigns priorities to the shape elements in the order of ID numbers registered in the system. This is a system for selecting a three-dimensional shape element characterized by selection.

According to a fifth aspect of the present invention, in the three-dimensional shape element selecting system according to the first aspect, the selecting means is displayed within a certain range centered on the first picked point. This is a system for selecting a three-dimensional shape element, which is characterized in that all the shape elements are selected with priority given in order from the viewpoint.

According to a sixth aspect of the present invention, in the three-dimensional shape element selecting system according to the first aspect, the selecting means is higher in descending order in terms of the connection between the shape picked first and the phase. Prioritize, and for geometric elements that are distant from the first element picked at the same level in phase, compare the distance between the first picked element and those elements, and order them in order from the closest. This is a system for selecting a three-dimensional shape element, which is characterized in that it is selected with priority.

According to a seventh aspect of the present invention, there is provided a means for determining the type of a shape element to be operated, a means for creating a list of selected shape element candidates with priorities, and the input of a specific event to the display device for the shape element. Means for highlighting the shape element having the highest priority in the candidate list.

According to the invention of claim 8, the type of the shape element to be operated is determined, a selected shape element candidate list is created,
Prioritizing in the list, highlighting the shape element having the highest priority in the shape element candidate list on the display device by inputting a specific event, comprising the steps of: This is a method for selecting a three-dimensional shape element.

[0012] According to a ninth aspect of the present invention, the type of the shape element to be operated is determined, and a selected shape element candidate list is created.
Select a three-dimensional shape element from a display graphic consisting of each step, wherein priorities are assigned in the list, and when a specific event is input, the shape element having the highest priority in the element selection list is highlighted on the display device. A computer-readable recording medium on which a program for causing a computer to execute the method is recorded.

[0013]

DETAILED DESCRIPTION OF THE INVENTION (Claim 1) In a first aspect of the present invention, in a system for selecting a three-dimensional shape element, first, a type of a three-dimensional shape element to be selected, for example, a model, a solid, a plane, a ridge line, etc. , Vertex, reference plane, reference line, reference point, etc., and repeatedly input a specific event such as repeatedly pressing the tab key or repeatedly pressing the right mouse button. By repeatedly entering this event,
This is a system for selecting a three-dimensional shape element in which the selected shape element is successively changed to another shape element of the same type. In other words, according to the operation procedure,
The type of the shape element to be selected to be operated is determined (step 1). In accordance with this, a selected shape element candidate list is generated inside the system (step 2). The list generated here is composed of the single type of shape element specified in step 1. Also, priorities are assigned to the respective shape elements appearing in the list generated here (step 3). If the system accepts any specific event input (step 4), step 2
In accordance with the list obtained in step (1), the shape elements are displayed one after another in a different color from the normally displayed shape elements in descending order of priority.
Here, the specific event input may be a tab key mouse button or the like. When it reaches the end of the list priority, it moves to the top with the highest priority. Here, this priority is obtained as follows.

(Claim 2) A higher priority is given to the shape element picked first from the closest one in terms of the phase connection. An example will be described with reference to FIG.
FIG. 1 is a diagram showing a three-dimensional shape element to be selected,
Here, the operation target graphic is a long rectangular solid. First, when a rectangular solid is selected, the system creates a list of candidate shapes for the rectangular solid in the system, and the order of appearance in the list is as follows. Is selected as the first place (FIG. 1 (A)).
Next, the right end face is selected (FIG. 1 (B)), and further the top end face (FIG. 1 (C))... Which has the closest phase connection is selected in order. Here, priorities are assigned by focusing on the phases, and therefore no priorities are assigned to adjacent cubes.

(Claim 3) In the case of the invention according to claim 3, the distance from the shape element picked first is viewed, and the closer the element is, the higher the priority is given. Here, the distance refers to a distance between the center coordinates of the shape elements. FIG. 2 is a diagram for explaining the above-mentioned priorities by taking an actual three-dimensional shape element as an example. In this case, when a priority is given to each of the surfaces of the three-dimensional rectangular shape, the cube whose distance is the shortest from the first picked surface (here, the lower left side surface of the cube in FIG. 2A) is selected. Plane (FIG. 2 (B)), and subsequently each side of the cube (FIG. 2 (C), 2 (B),... FIG. 2 (H))
Are given priority.

(Claim 4) In the case of the invention according to claim 4, priorities are assigned in the order of ID numbers registered in the system. The higher the ID number, the higher the priority. Here, the ID numbers (ID1,..., ID6) as shown in FIG. 3 (A) are used for a rectangular solid, and the IDs shown in FIGS. 3 (G) and 3 (H) are used for a cube.
Since the D numbers (ID7, ID8) are assigned, the priorities are assigned in that order. In this case, if there are already picked ones, starting with that shape in the list, those with higher priority are selected one after another. When it reaches the end of the priority, it moves to the one with the highest priority. If no item is picked, the items are selected in order from the highest priority in the list.

(Claim 5) In the case of the invention according to claim 5, a shape element displayed in a predetermined area centering on a picked point is included in a selected shape element candidate list. The shorter the distance from the center coordinate of each shape element in the list to the viewpoint, the higher the priority is given. FIG. 4 shows an example. For example, when the user looks at the displayed operation target graphic in the direction of the arrow in FIG. 4A, the illustrated end face (FIG. B)) is selected first. Subsequently, a plane (shape element) having the next shorter distance is selected (FIG. 4C). As shown, the priorities are given the order of FIG. 4A to FIG. 4H, and return to the original state in FIG. 4I.

(Claim 6) In the case of the invention according to claim 6, as a first condition, the distance from the first picked shape element is determined, and the closer the distance is, the higher the priority is given. If the phase connection is gone,
The second condition is to look at the distance from the shape element that was first picked, and assign a higher priority to the shape element that is closer. Here, the distance refers to a distance between the center coordinates of the shape elements.
FIG. 5 is a diagram for explaining the above-described priority assignment order. The priority assignment starting from FIG.
~ As shown in Fig. 5 (F), start from the left lower end face (shape element) of the first selected rectangular solid, then select the one in the order of distance from it, and finally end the selection of the connected phase. (FIG. 5 (F)), when the distance from the first picked shape element, which is the second condition, is short, that is, it jumps to the lower left end face of the adjacent cube (FIG. 5 (F)).
(G)) Next, priority is given to each end face (shape element) of the cube in order according to the first condition.

(Claims 7 and 8) A three-dimensional shape element selection system according to the present invention comprises: means for determining the type of a shape element to be operated; means for creating a list of selected shape element candidates with priorities; The display device includes means for highlighting a shape element having the highest priority in the shape element candidate list in response to an event input. Next, a method of selecting a three-dimensional shape element by this system will be described with reference to a flowchart shown in FIG. When the shape element selection method of the present invention is started, first, the type of the shape element to be operated is determined (S101). After the shape element is determined, a selection shape element candidate list is created (S102). Priorities are assigned in the list (S103), and a specific event is accepted (S104), whereby the shape element having the highest priority in the element selection list is highlighted on the display device (S105). If the displayed shape element is a shape element desired by the user (S106: YE
S), end as it is, otherwise (S106 N
O), the specific event is accepted again (S107), and the shape elements with higher priorities are highlighted (S108), and it is determined whether or not the displayed one is the shape element desired by the user (S106). The above steps are repeated until a desired shape element is obtained, and the selection of the shape element is completed.

(Claim 9) The three-dimensional shape element selection method of the present invention can be implemented by a computer. The invention according to claim 9 relates to a recording medium on which a computer-readable program for recording the program is recorded, wherein the type of a shape element to be operated is determined, a selected shape element candidate list is created, and In order for the computer to execute a method of selecting a three-dimensional shape element consisting of each step of giving a priority and inputting a specific event, and causing the display device to highlight the shape element having the highest priority in the element selection list. The present invention relates to a computer-readable recording medium recording the above program.

[0021]

According to the present invention, it is possible to easily select a shape element which is difficult to pick up a graphic to be operated. Effects corresponding to the second and third aspects: If a shape element near the shape element to be selected of the operation target graphic is picked, the shape element to be selected can be easily selected. Advantageous Effects According to Claim 4: As long as the type of the shape element to be selected of the operation target graphic is determined, the shape element to be selected can be easily selected.

According to a fifth aspect of the present invention, a desired shape element can be easily selected if the user can pick somewhere in the area where the shape element to be selected of the operation target graphic is displayed. According to the sixth aspect, if a shape element near the shape element to be selected of the operation target graphic is picked, a desired shape element can be easily selected even for a complicated shape. Effect corresponding to claim 9: The method of the present invention can be easily implemented on any computer.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a selection order of shape elements of an operation target graphic.

FIG. 2 is a diagram illustrating another selection order of shape elements of an operation target graphic.

FIG. 3 is a diagram illustrating another selection order of shape elements of an operation target graphic.

FIG. 4 is a diagram illustrating another selection order of shape elements of an operation target graphic.

FIG. 5 is a diagram illustrating another selection order of shape elements of an operation target graphic.

FIG. 6 is a processing flowchart for selecting a shape element of an operation target graphic.

Claims (9)

[Claims] 1. According to a repeated input of a specific event,
A system for selecting a three-dimensional shape element from a display figure, comprising means for sequentially selecting another shape element of the same type as the selected shape element of the operation target figure and selecting the same. 2. The three-dimensional shape element selection system according to claim 1, wherein said selecting means gives priority to a shape element picked first from a shape element having the closest phase connection. A selection system for a three-dimensional shape element, wherein the selection is performed by adding the selection. 3. The three-dimensional shape element selection system according to claim 1, wherein the selecting unit selects and selects a shape element having a shortest distance from the first picked shape element. A system for selecting a three-dimensional shape element characterized by: 4. The three-dimensional shape element selection system according to claim 1, wherein said selecting means selects the shape elements by assigning priorities in order of ID numbers registered in the system. A system for selecting a three-dimensional shape element to be used. 5. The three-dimensional shape element selection system according to claim 1, wherein said selecting means selects all the shape elements displayed within a certain range centered on the first picked point. On the other hand, a system for selecting a three-dimensional shape element, wherein the three-dimensional shape element is selected by assigning priorities in order from the viewpoint closest to the viewpoint. 6. The three-dimensional shape element selection system according to claim 1, wherein the selecting means assigns a higher priority to the first picked shape in order from a closest one in connection with a shape and a phase, For shape elements that are farther away from the first picked shape element at the same level in phase, compare the distance between the first picked shape element and those shape elements and assign priorities in order from the closest one A system for selecting a three-dimensional shape element characterized by selecting. 7. A means for determining a type of a shape element to be operated, a means for creating a list of selected shape element candidates with priorities, and inputting a specific event causes a display device to display a priority in the shape element candidate list. Means for highlighting the shape element having the highest order, a system for selecting a three-dimensional shape element from a display figure. 8. The type of the shape element to be operated is determined, a selected shape element candidate list is created, priorities are set in the list, and a specific event is input to display the shape element candidate list on the display device. 3. A method for selecting a three-dimensional shape element from a display figure, comprising the steps of: highlighting the shape element having the highest priority. 9. A type of a shape element to be operated is determined, a selected shape element candidate list is created, priorities are set in the list, and a specific event is input to a display device to display the selected element in the element selection list. A computer-readable recording medium in which a program for causing a computer to execute a method of selecting a three-dimensional shape element from a display graphic consisting of each step, in which a shape element having the highest priority is highlighted is recorded.