JP6665579B2 - Drawing method, drawing apparatus, and drawing program - Google Patents

Description

  The present invention relates to a drawing method, a drawing device, and a drawing program.

  A network diagram may be used to visualize gene interactions, human relationships by SNS (Social Networking Service) or the like, connection relationships between devices such as servers, and the like. The network diagram expresses a relationship between a plurality of nodes by using nodes indicating elements to be visualized and arcs that are lines connecting the nodes. It should be noted that the network diagram becomes difficult to see as the number of overlapping nodes and the intersection of arcs increase. For this reason, a method has been proposed in which nodes are automatically rearranged and a network diagram is drawn so as to suppress the occurrence of node overlap and arc intersection (for example, see Patent Document 1).

JP 2007-233728 A

  In a network diagram generated so that all nodes are displayed in a certain display area, it becomes difficult to prevent the occurrence of node overlap or the like as the number of nodes increases. In this case, by enlarging and displaying the range of interest in the network diagram, it is conceivable to make the range of interest easier to see. However, when the network diagram is simply enlarged, for example, nodes arranged so as to overlap each other are enlarged while overlapping each other. For this reason, even if the network diagram is simply enlarged, the overlapping of the nodes is not resolved, and the detailed information (node labels, connection relationships between nodes, etc.) of the nodes in the network diagram may not be improved from an unclear state. .

  In one aspect, an object of the present invention is to suppress occurrence of node overlap when a network diagram is displayed in an enlarged manner.

According to one aspect, the the drawing method of displaying a network diagram that represents the relation between a plurality of nodes using a line connecting the drawing objects and nodes representing nodes on the display screen, which is displayed on the display screen 1 of enlarging the network diagram accepts enlargement instruction, based on the arrangement of the drawing objects in the second network diagram that is generated when the enlarged first network diagram in a first magnification ratio based on the enlargement instruction, drawing The enlargement ratio of the object is corrected to a second enlargement ratio equal to or less than the first enlargement ratio, elements other than the drawing object in the first network diagram are enlarged by the first enlargement ratio, and the drawing object is changed to the second enlargement ratio. The computer executes a process of generating an enlarged network diagram by enlarging the network diagram and displaying the enlarged network diagram on a display screen.

According to another aspect, the rendering apparatus to display the network diagram that represents the relation between a plurality of nodes using a line connecting the drawing objects and nodes representing nodes on a display screen, a displayed on the display screen A receiving unit for receiving an enlargement instruction for enlarging the first network diagram, and an arrangement state of drawing objects in a second network diagram generated when the first network diagram is enlarged at a first enlargement ratio based on the enlargement instruction. based on, and expansion and enlargement factor correction unit for correcting the magnification of the drawing object to the first magnification rate following the second magnification ratio, the elements except the drawing objects in the first network diagram in a first magnification ratio , an enlarged portion for generating a network view after enlargement by enlarging the drawing object in the second magnification ratio, on the display screen a network view of the enlarged And a Shimesuru drawing unit.

According to another aspect, a drawing program that causes a computer to execute a drawing process of displaying, on a display screen, a network diagram expressing a relationship between a plurality of nodes using a drawing object representing a node and a line connecting the nodes, A drawing object in the second network diagram generated when an enlargement instruction for enlarging the first network diagram displayed on the display screen is received and the first network diagram is enlarged at a first enlargement ratio based on the enlargement instruction. Correcting the enlargement ratio of the drawing object to a second enlargement ratio equal to or less than the first enlargement ratio based on the arrangement state of (a), enlarging the elements other than the drawing object in the first network diagram by the first enlargement ratio, the drawing object to generate a network diagram of the enlarged by expanding in the second magnification ratio, displaying a network diagram of the enlarged screen To display.

  When the network diagram is enlarged and displayed, the occurrence of node overlap can be suppressed.

1 is a diagram illustrating an embodiment of a drawing method, a drawing device, and a drawing program. FIG. 9 is a diagram illustrating another embodiment of a drawing method, a drawing device, and a drawing program. FIG. 3 is a diagram illustrating an example of an operation of the drawing apparatus illustrated in FIG. 2. It is a figure showing an example of the network figure after expansion displayed on a display screen. FIG. 9 is a diagram illustrating another embodiment of a drawing method, a drawing device, and a drawing program. FIG. 6 is a diagram illustrating an example of an operation of the drawing apparatus illustrated in FIG. 5. FIG. 9 is a diagram illustrating another embodiment of a drawing method, a drawing device, and a drawing program. FIG. 8 is a diagram illustrating an example of an operation of the drawing apparatus illustrated in FIG. 7. FIG. 9 is a diagram illustrating another embodiment of a drawing method, a drawing device, and a drawing program. FIG. 10 is a diagram illustrating an example of an operation of the drawing apparatus illustrated in FIG. 9. FIG. 3 is a diagram illustrating an example of hardware that executes a drawing program.

  Hereinafter, embodiments will be described with reference to the drawings.

  FIG. 1 shows an embodiment of a drawing method, a drawing apparatus, and a drawing program. The drawing apparatus 100 shown in FIG. 1 executes a drawing process of displaying the network diagram NTD on the display screen 610 of the display device 600. The network diagram NTD expresses a relationship between a plurality of nodes using a drawing object DO (DO1, DO2, DO3, DO4) representing a node and an arc A (A1, A2, A3) connecting the nodes. Arc A is an example of a line connecting nodes. In FIG. 1, an example of the network diagram NTD displayed on the display screen 610 is shown in parentheses. In the example shown in FIG. 1, the drawing object DO is a circular symbol including the position of the node. Note that the drawing object DO is not limited to the symbol including the position of the node. For example, the drawing object DO may be a label such as a character string indicating node information. Alternatively, a plurality of types of drawing objects DO such as symbols and labels may be used for one node.

  The drawing device 100 is mounted on an information processing device such as a computer having a display device 600 such as a display, for example. Processing such as drawing processing executed by the drawing apparatus 100 may be realized only by hardware, or may be realized by controlling hardware by software such as a drawing program. For example, the drawing program may cause a computer to execute a drawing process.

  The drawing apparatus 100 includes a drawing unit 200, a reception unit 300, an enlargement ratio correction unit 400, and an enlargement unit 500. The drawing unit 200 receives graphic information GINF (GINF1, GINF2) indicating the arrangement of the drawing objects DO included in the network diagram NTD, and holds the graphic information GINF. The graphic information GINF includes, for example, information indicating a connection relationship between nodes, a size of each drawing object DO, coordinates (hereinafter, also referred to as arrangement coordinates) when each drawing object DO is arranged. For example, the drawing unit 200 generates drawing data DDATA for displaying the network diagram NTD on the display screen 610 of the display device 600 based on the graphic information GINF, and outputs the generated drawing data DDATA to the display device 600. As a result, the network diagram NTD is displayed on the display screen 610.

  The graphic information GINF1 is, for example, original graphic information GINF of the network diagram NTD, and is transferred to the drawing unit 200 from a memory or the like external to the drawing apparatus 100. Information indicating the arrangement coordinates of each drawing object DO may be omitted from the graphic information GINF1. In this case, the drawing unit 200 determines the arrangement coordinates of each drawing object DO using, for example, a dynamic model or the like.

  The graphic information GINF2 is the graphic information GINF of the network diagram NTD whose size has been changed by the enlargement instruction EINF or the like, and is transferred from the enlargement unit 500 to the drawing unit 200. That is, the graphic information GINF held by the drawing unit 200 is updated every time the graphic information GINF2 is transferred from the enlargement unit 500 to the drawing unit 200. For example, the graphic information GINF held by the drawing unit 200 is updated each time the network diagram NTD is enlarged.

  For example, the receiving unit 300 receives an enlargement instruction EINF for enlarging the network diagram NTD displayed on the display screen 610. For example, a user who is viewing the network diagram NTD before the enlargement displayed on the display screen 610 (FIG. 1A, the network diagram NTD before the enlargement) performs an operation for enlarging the network diagram NTD using a mouse or the like. This is performed using an input device (not shown). Thus, the enlargement instruction EINF is notified to the receiving unit 300. Then, the receiving unit 300 calculates the first enlargement ratio EF1 based on the enlargement instruction EINF. The first enlargement ratio EF1 corresponds to the enlargement ratio of the network diagram NTD desired by the user. The accepting unit 300 outputs information indicating the first enlargement ratio EF1 based on the enlargement instruction EINF to the enlargement ratio correction unit 400 and the enlargement unit 500.

  The enlargement ratio correction unit 400 sets the enlargement ratio of the drawing object DO to the second enlargement ratio equal to or less than the first enlargement ratio EF1 based on the arrangement state of the drawing object DO in the network diagram NTD when the enlargement is performed at the first enlargement ratio EF1. Correct the magnification to EF2. Then, the enlargement ratio correction unit 400 outputs information indicating the second enlargement ratio EF2 to the enlargement unit 500.

  For example, based on the graphic information GINF held by the drawing unit 200, the enlargement ratio correction unit 400 detects an overlapping area (shaded portion in the figure) where the plurality of drawing objects DO2 and DO3 overlap each other. Then, the enlargement factor correction unit 400 calculates the total area of the overlapping area when the network diagram NTD is enlarged at the first enlargement factor EF1, as information indicating the arrangement state of the drawing object DO. In this case, the enlargement ratio correction unit 400 calculates the second enlargement ratio EF2 based on the total area of the overlapping area calculated as the information indicating the arrangement state of the drawing object DO. For example, the enlargement ratio correction unit 400 decreases the second enlargement ratio EF2 as the total area of the overlapping area increases.

  Note that the enlargement ratio correction unit 400 may calculate information different from the total area of the overlapping area as information indicating the arrangement state. For example, the enlargement ratio correction unit 400 calculates the total drawing area of the drawing object DO displayed on the display screen 610 when the network diagram NTD is enlarged at the first enlargement ratio EF1. In the example illustrated in FIG. 1, the enlargement factor correction unit 400 calculates the sum of the areas of the drawing objects DO1, DO2, and DO3 on the display screen 610 illustrated in the comparative example as the sum of the drawing areas of the drawing object DO. Then, the enlargement ratio correction unit 400 may calculate the ratio of the total drawing area of the drawing object DO to the area of the display screen 610 as information indicating the arrangement state of the drawing object DO. In this case, for example, the enlargement ratio correction unit 400 calculates the second enlargement ratio EF2 based on a comparison result between the ratio of the total drawing area of the drawing object DO to the area of the display screen 610 and a preset threshold value. I do. When the ratio of the total drawing area of the drawing object DO to the area of the display screen 610 is larger than a preset threshold, the enlargement ratio correction unit 400 makes the second enlargement ratio EF2 smaller than the first enlargement ratio EF1.

  The enlargement unit 500 enlarges elements other than the drawing object DO in the network diagram NTD (that is, the positional relationship between the drawing objects DO) by the first enlargement factor EF1, and enlarges the drawing object DO by the second enlargement factor EF2. . Thereby, the network diagram NTD is enlarged. For example, the enlargement unit 500 enlarges the distance between the drawing objects DO (for example, the positional relationship between the drawing objects DO, arc A, and the like) at a first enlargement ratio EF1 based on the enlargement instruction EINF. Then, the enlargement unit 500 enlarges the drawing object DO in the horizontal direction and the vertical direction of the display screen 610 at the second enlargement ratio EF2 corrected based on the arrangement state of the drawing object DO.

  As described above, when the enlargement unit 500 enlarges the network diagram NTD based on the enlargement instruction EINF, the enlargement unit 500 enlarges the positional relationship between the drawing objects DO in the network diagram NTD at the first enlargement ratio EF1, and enlarges the drawing object DO. The enlargement is performed at an enlargement ratio EF2 of 2. Then, the enlargement unit 500 outputs the graphic information GINF2 of the enlarged network diagram NTD to the drawing unit 200. Thus, the enlarged network diagram NTD is displayed on the display screen 610, as shown in FIG. 1 (b) the enlarged network diagram NTD.

  In the example shown in FIG. 1, when focusing on the drawing objects DO2 and DO3, the distance between the drawing objects DO2 and DO3 (the positional relationship between the drawing objects DO2 and DO3) is enlarged at the first enlargement ratio EF1. Then, the size of the drawing objects DO2 and DO3 is enlarged at the second enlargement ratio EF2 smaller than the first enlargement ratio EF1. Therefore, the overlap between the drawing object DO2 and the drawing object DO3 is resolved. As described above, in the drawing method using the drawing apparatus 100 illustrated in FIG. 1, it is possible to suppress the occurrence of the overlapping of the drawing objects DO representing the nodes. That is, the occurrence of node overlap can be suppressed.

  Here, in the comparative example shown in FIG. 1, since both the distance between the drawing objects DO2 and DO3 and the size of the drawing objects DO2 and DO3 are enlarged at the first enlargement ratio EF1, the drawing objects DO2 and DO3 are enlarged. The overlap with is not eliminated. For this reason, in the comparative example, the network diagram NTD may not be improved from an unclear state. In other words, in the drawing method by the drawing apparatus 100 shown in FIG. 1, the overlap between the drawing object DO2 and the drawing object DO3 is eliminated, so that the network diagram NTD can be more easily seen than in the comparative example shown in FIG.

  The configuration and operation of the drawing apparatus 100 are not limited to the example shown in FIG. For example, when receiving the reduction instruction to reduce the network diagram NTD displayed on the display screen 610, the drawing apparatus 100 reduces both the positional relationship between the drawing objects DO and the drawing object DO at the reduction ratio based on the reduction instruction. You may. Thereby, the network diagram NTD is reduced at a reduction rate based on the reduction instruction.

  As described above, in the embodiment illustrated in FIG. 1, the drawing apparatus 100 receives the enlargement instruction EINF that enlarges the network diagram NTD displayed on the display screen 610. Then, the drawing apparatus 100 changes the enlargement ratio of the drawing object DO to the first enlargement ratio EF1 based on the arrangement state of the drawing object DO in the network diagram NTD when the enlargement is performed at the first enlargement ratio EF1 based on the enlargement instruction EINF. It is corrected to the following second enlargement ratio EF2. The drawing apparatus 100 enlarges elements other than the drawing object DO in the network diagram NTD at the first enlargement factor EF1, and enlarges the drawing object DO at the second enlargement factor EF2. Then, drawing apparatus 100 displays enlarged network diagram NTD on display screen 610.

  As described above, the enlargement ratio of the drawing object DO is corrected to the second enlargement ratio EF2 that is equal to or less than the first enlargement ratio EF1 based on the enlargement instruction EINF. The occurrence of node overlap can be suppressed. As a result, the network diagram NTD displayed on the display screen 610 can be easily viewed.

  FIG. 2 shows another embodiment of the drawing method, the drawing device, and the drawing program. The same or similar elements as those described in FIG. 1 are denoted by the same or similar reference numerals, and detailed description thereof will be omitted. The drawing apparatus 110 shown in FIG. 2 has a magnification correcting section 410 instead of the magnification correcting section 400 shown in FIG. Other configurations of the drawing apparatus 110 are the same as or similar to those of the drawing apparatus 100 shown in FIG. The drawing device 110 is mounted on an information processing device such as a computer having a display device 600 such as a display, an input device 800 such as a mouse, and a memory 700, for example. Processing such as drawing processing executed by the drawing apparatus 110 may be realized only by hardware, or may be realized by controlling hardware by software such as a drawing program. For example, the drawing program may cause a computer to execute a drawing process.

  In FIG. 2, an example of the network diagram NTD displayed on the display screen 610 is shown in parentheses. In the example shown in FIG. 2, two types of drawing objects DO (DOn, Dol) such as a circular symbol including a node position and a label such as a character string indicating node information are displayed on the display screen 610 for one node. Is displayed. Among the plurality of types of drawing objects DO, the drawing object DOn (DOn1, DOn2, DOn3) is a symbol including the position of the node, and the drawing object DO1 (D01, D02, D03) is a label indicating information of the node. . Note that the drawing object DO may be only one of the symbol and the label. Alternatively, three or more types of drawing objects DO may be displayed on the display screen 610 for one node.

  The drawing apparatus 110 includes a drawing unit 200, a reception unit 300, an enlargement ratio correction unit 410, and an enlargement unit 500.

  The drawing unit 200 receives, for example, original graphic information GINF1 of the network diagram NTD from the memory 700, and holds the graphic information GINF1. Then, the drawing unit 200 generates the drawing data DDATA of the network diagram NTD based on the graphic information GINF1, and outputs the generated drawing data DDATA to the display device 600. As a result, the network diagram NTD based on the original graphic information GINF1 is displayed on the display screen 610.

  The drawing unit 200 updates the held graphic information GINF to the graphic information GINF2 every time the graphic information GINF2 is received from the enlargement unit 500. Then, the drawing unit 200 generates the drawing data DDATA of the network diagram NTD based on the graphic information GINF2, and outputs the generated drawing data DDATA to the display device 600. Thereby, the network diagram NTD displayed on the display screen 610 is updated to, for example, the network diagram NTD enlarged by the enlargement instruction EINF.

  The receiving unit 300 receives, for example, an enlargement instruction EINF for enlarging the network diagram NTD displayed on the display screen 610 from the input device 800, and calculates a first enlargement ratio EF1 based on the enlargement instruction EINF. Then, the accepting unit 300 outputs information indicating the first enlargement ratio EF1 based on the enlargement instruction EINF to the enlargement ratio correction unit 410 and the enlargement unit 500.

  The enlargement ratio correction unit 410 sets the enlargement ratio of the drawing object DO to a second enlargement ratio equal to or less than the first enlargement ratio EF1, based on the total area of the overlapping area (shaded portion in the drawing) where the plurality of drawing objects DO overlap each other. Correct to rate EF2. Then, the enlargement ratio correction unit 400 outputs information indicating the second enlargement ratio EF2 to the enlargement unit 500.

  For example, the enlargement ratio correction unit 410 includes an overlapping area calculation unit 412 and an enlargement ratio calculation unit 414. For example, the overlapping area calculation unit 412 generates a plurality of drawing objects DO based on the graphic information GINF held by the drawing unit 200, that is, the graphic information GINF corresponding to the network diagram NTD displayed on the display screen 610. Detect overlapping areas that overlap each other. Then, the overlapping area calculation unit 412 calculates the total area TA of the overlapping area when the network diagram NTD is enlarged at the first enlargement factor EF1, as information indicating the arrangement state of the drawing object DO. The overlapping area calculation unit 412 outputs information indicating the total area TA of the overlapping area to the enlargement ratio calculation unit 414.

  In the example illustrated in FIG. 2, the overlapping area calculation unit 412 detects, as an overlapping area, an area where a plurality of drawing objects DOn indicating a symbol of a node overlap with each other and an area where a plurality of drawing objects Dol indicating a label of a node overlap with each other. . That is, the overlapping area calculation unit 412 detects an overlapping area for each type of the drawing object DO. As a result, an area where the drawing objects DOn and Dol corresponding to the common node overlap (for example, an area where the drawing objects DOn1 and Doll overlap) can be excluded from the overlapping area to be resolved. Note that the overlapping area calculation unit 412 may also detect an area where different types of drawing objects DO overlap with each other as an overlapping area.

  The enlargement ratio calculation unit 414 corrects the enlargement ratio of the drawing object DO to a second enlargement ratio EF2 equal to or less than the first enlargement ratio EF1, based on the total area TA of the overlapping area. Then, the enlargement ratio calculation unit 414 outputs information indicating the second enlargement ratio EF2 to the enlargement unit 500. For example, the second enlargement ratio EF2 is represented by Expression (1) using the first enlargement ratio EF1 and the total area TA of the overlapping region.

EF2 = EF1 / (EF1- (EF1-1) / (TA + 1)) (1)
As described above, the second enlargement ratio EF2 decreases as the total area TA of the overlapping region increases. Note that the calculation formula of the second enlargement ratio EF2 is not limited to the formula (1).

  When the enlargement unit 500 enlarges the network diagram NTD by the first enlargement ratio EF1, the enlargement of the drawing object DO by the second enlargement ratio EF2 instead of the enlargement of the drawing object DO by the first enlargement ratio EF1 enlarges the network diagram NTD. I do. Then, the enlargement unit 500 outputs the graphic information GINF2 of the enlarged network diagram NTD to the drawing unit 200. Thereby, the enlarged network diagram NTD is displayed on the display screen 610. As described above, the drawing apparatus 110 converts the network diagram NTD from the state illustrated in FIG. 2A to the network diagram NTD before the enlargement in FIG. The image is enlarged and displayed on the display screen 610.

  In the example shown in FIG. 2, when focusing on the drawing objects DOn2, DOn2, DOn3, and D03, the interval between the drawing objects DOn2, DOn2 and the drawing objects DOn3, D03 is enlarged at the first enlargement ratio EF1. That is, the positional relationship between the drawing objects DOn2, D02 and the drawing objects DOn3, D03 is enlarged at the first enlargement ratio EF1. Then, the size of the drawing objects DOn2, DOL2, DOn3, and DOL3 is enlarged at the second enlargement ratio EF2 smaller than the first enlargement ratio EF1. Therefore, the overlap between the drawing object DO12 and the drawing object DO13 (in the example shown in FIG. 2, the overlap of the node labels) is resolved. As described above, in the drawing method by the drawing device 120 illustrated in FIG. 2, it is possible to suppress the occurrence of the overlapping of the drawing objects DO representing the nodes. That is, the occurrence of node overlap can be suppressed.

  Here, in the comparative example shown in FIG. 2, both the distance between the drawing objects DOn2, D02 and the drawing objects DOn3, D03 and the sizes of the drawing objects DOn2, D02, DOn3, D03 are enlarged at the first magnification EF1. Is done. For this reason, in the comparative example, the overlap between the drawing object DOl2 and the drawing object DOl3 may not be resolved, and the network diagram NTD may not be improved from an unclear state. In other words, in the drawing method using the drawing device 110 shown in FIG. 2, the overlap between the drawing object DO12 and the drawing object DO13 is eliminated, so that the network diagram NTD can be seen more easily than in the comparative example shown in FIG. Note that the configuration of the drawing apparatus 110 is not limited to the example shown in FIG.

  FIG. 3 shows an example of the operation of the drawing apparatus 110 shown in FIG. FIG. 3 shows an example of the operation of the drawing apparatus 110 when the network diagram NTD displayed on the display screen 610 is enlarged. For example, before the process of step S100 is performed, the network diagram NTD to be enlarged (for example, the network diagram NTD based on the original graphic information GINF1 or the like) is displayed on the display screen 610.

  Note that the operation illustrated in FIG. 3 is one mode of a drawing method of displaying the network diagram NTD on the display screen 610. The operation illustrated in FIG. 3 may be realized only by hardware, or may be realized by controlling hardware by software such as a drawing program. For example, the drawing program may cause a computer to execute the operation shown in FIG.

  In step S100, the receiving unit 300 receives an enlargement instruction EINF for enlarging the network diagram NTD displayed on the display screen 610, and calculates a first enlargement ratio EF1 based on the enlargement instruction EINF. For example, a user viewing the network diagram NTD displayed on the display screen 610 performs an operation for enlarging the network diagram NTD using the input device 800 such as a mouse. As a result, the enlargement instruction EINF is notified to the receiving unit 300, and the operation of the drawing apparatus 110 proceeds to step S200. That is, the operation after step S200 is on standby until receiving unit 300 receives enlargement instruction EINF.

  In step S200, the overlapping area calculation unit 412 calculates the total area TA of the overlapping area where the plurality of drawing objects DO overlap each other. For example, the overlapping area calculation unit 412 detects an overlapping area of a plurality of drawing objects DO based on the graphic information GINF corresponding to the network diagram NTD displayed on the display screen 610. Then, the overlapping area calculation unit 412 calculates the total area TA of the overlapping area when the network diagram NTD is enlarged at the first enlargement ratio EF1 based on the enlargement instruction EINF.

  Next, in step S300, the enlargement ratio calculation unit 414 sets the enlargement ratio of the drawing object DO to a second enlargement ratio equal to or less than the first enlargement ratio EF1, based on the total area TA of the overlapping area calculated in step S200. Correct to EF2. For example, the enlargement ratio calculation unit 414 calculates the second enlargement ratio EF2 using Expression (1) described with reference to FIG.

  Next, in step S400, the enlargement unit 500 enlarges the network diagram NTD using the first enlargement ratio EF1 and the second enlargement ratio EF2. For example, the enlargement unit 500 enlarges elements other than the drawing object DO in the network diagram NTD (that is, the positional relationship between the drawing objects DO) by the first enlargement ratio EF1, and enlarges the drawing object DO by the second enlargement ratio EF2. Expanding. Thereby, the graphic information GINF2 corresponding to the enlarged network diagram NTD is generated.

  Next, in step S500, drawing section 200 displays enlarged network diagram NTD (network diagram NTD enlarged in step S400) on display screen 610. For example, the drawing unit 200 determines the position relationship between the drawing objects DO enlarged at the first enlargement ratio EF1 and the graphic information GINF2 including information indicating the drawing object DO enlarged at the second enlargement ratio EF2. Generate drawing data DDATA. Then, the drawing unit 200 outputs the drawing data DDATA to the display device 600. Thereby, the network diagram NTD after the enlargement is displayed on the display screen 610 of the display device 600. Note that the operation of the drawing apparatus 110 is not limited to the example illustrated in FIG.

  FIG. 4 shows an example of an enlarged network diagram NTD displayed on the display screen 610. (A) Enlargement by the drawing apparatus 110 in FIG. 4, (b) Comparative Example 1 and (c) Comparative Example 2 are displayed on the display screen 610 when the network diagram NTD to be enlarged is enlarged around the enlargement point. The network diagram NTD to be performed is shown. Comparative Examples 1 and 2 are comparative examples of the enlargement method using the drawing apparatus 110. Note that, in FIG. 4, the symbols of the drawing object DO and the arc A are omitted for easy understanding of the drawing. For example, “node number 1” or the like illustrated in FIG. 4 is a drawing object DO indicating a label of a node, and a symbol such as a circle illustrated in FIG. 4 is a drawing object DO indicating a symbol including the position of the node. In addition, a line connecting symbols such as circles shown in FIG. In FIG. 4, the enlargement of the positional relationship between the drawing objects DO is also referred to as the enlargement of a plane area.

  The drawing apparatus 110 sets the enlargement ratio of the drawing object DO to a value equal to or smaller than the first enlargement ratio EF1 based on the total area TA of the overlapping area of the drawing object DO, as shown in Expression (2) described in FIG. Correct to the second enlargement factor EF2. In the example shown in FIG. 4A, the second enlargement ratio EF2 is 1.2 times smaller than the first enlargement ratio EF1 (= 1.5 times). As a result, the plane area is enlarged 1.5 times (first enlargement ratio EF1), and the drawing object DO indicating the symbol and label of the node is enlarged 1.2 times (second enlargement ratio EF2). You. As a result, it is possible to suppress the occurrence of the overlapping of the drawing objects DO2 in the enlarged network diagram NTD, and to make it easier to see the enlarged network diagram NTD displayed on the display screen 610.

  On the other hand, in Comparative Example 1, both the plane area and the drawing object DO (the symbol or label of the node) are enlarged at a common enlargement ratio (the second enlargement ratio EF1 = the first enlargement ratio EF1). For example, the plane area and the drawing object DO are enlarged 1.2 times. For this reason, in Comparative Example 1, the overlapping of the drawing objects DO is not eliminated. Therefore, in the enlarged network diagram NTD displayed on the display screen 610, the label of the node is harder to read and hard to see as compared with the enlargement by the drawing device 110.

  In Comparative Example 2, the enlargement ratio of the drawing object DO (that is, the second enlargement ratio EF2) is uniquely determined according to the enlargement ratio of the plane area (that is, the first enlargement ratio EF1). In Comparative Example 2 shown in FIG. 4, the second enlargement ratio EF2 is uniquely determined according to the first enlargement ratio EF1 by an expression represented by “(EF1 + 4) / 5”. In other words, when the size of the drawing object DO is enlarged to a size desired by the user, the first enlargement ratio EF1 (enlargement ratio of the plane area) is calculated by an expression represented by “5 × EF2-4”. , The second enlargement ratio EF2 (the enlargement ratio of the drawing object DO).

  For example, when the second enlargement ratio EF2 for enlarging the size of the drawing object DO to the size desired by the user is 1.2 times, the first enlargement ratio EF1 is determined to be 2 times. In this case, the plane area is enlarged to 2.0 times (first enlargement ratio EF1), and the drawing object DO (node symbol, label) is enlarged to 1.2 times (second enlargement ratio EF2). You.

  In the comparative example 2 shown in FIG. 4, the connection destination node of the node of interest (for example, “node number 5”) does not fit on the display screen 610, and the connection relationship between the nodes is difficult to see. As described above, in Comparative Example 2, when the size of the drawing object DO is enlarged to a size desired by the user, the distance between the drawing objects DO representing the nodes becomes unnecessarily large, and the connection relationship between the nodes is difficult to see. May be. That is, in the method of uniquely determining the enlargement ratio of the drawing object DO according to the enlargement ratio of the plane area, when the drawing object DO is enlarged until the overlapping of the drawing objects DO is resolved, the connection relationship between the nodes is difficult to see. May be.

  On the other hand, in the enlargement by the drawing device 110 in FIG. 4A, for example, a node such as “node number 35” to which “node number 5” (the node of interest) is connected is displayed on the display screen 610. . As described above, in the enlargement by the drawing apparatus 110, it is possible to suppress the connection relation between the nodes from being difficult to see.

  As described above, the same effects as those of the embodiment shown in FIG. 1 can be obtained in the embodiments shown in FIGS. For example, the drawing apparatus 110 detects an overlapping area where a plurality of drawing objects DO overlap each other, and calculates the total area TA of the overlapping area when the network diagram NTD is enlarged at the first enlargement ratio EF1. Then, the drawing apparatus 110 corrects the enlargement ratio of the drawing object DO to a second enlargement ratio EF2 equal to or less than the first enlargement ratio EF1, based on the total area TA of the overlapping area of the plurality of drawing objects DO. For example, the drawing apparatus 110 decreases the second enlargement ratio EF2 as the total area TA of the overlapping area increases. Then, the drawing apparatus 110 enlarges elements other than the drawing object DO in the network diagram NTD at the first enlargement ratio EF1, and enlarges the drawing object DO at the second enlargement ratio EF2.

  As described above, the drawing apparatus 110 corrects the enlargement ratio of the drawing object DO to the second enlargement ratio EF2 equal to or less than the first enlargement ratio EF1 based on the enlargement instruction EINF based on the total area TA of the overlapping area. Thereby, it is possible to suppress the occurrence of the overlapping of the drawing objects DO2, that is, to suppress the occurrence of the overlapping of the nodes. As a result, the network diagram NTD displayed on the display screen 610 can be easily viewed, and detailed information (node labels, connection relationships between nodes, etc.) of the nodes can be easily read.

  FIG. 5 shows another embodiment of the drawing method, the drawing apparatus, and the drawing program. The same or similar elements as those described with reference to FIGS. 1 to 4 are denoted by the same or similar reference numerals, and detailed description thereof will be omitted. The drawing apparatus 120 shown in FIG. 5 has a magnification ratio correction unit 420 instead of the magnification ratio correction unit 410 shown in FIG. The other configuration of the drawing apparatus 120 is the same as or similar to the drawing apparatus 110 shown in FIG. The drawing device 120 is mounted on an information processing device such as a computer having a display device 600 such as a display, an input device 800 such as a mouse, and a memory 700, for example. Processing such as drawing processing executed by the drawing apparatus 120 may be realized only by hardware, or may be realized by controlling hardware by software such as a drawing program. For example, the drawing program may cause a computer to execute a drawing process.

  The drawing apparatus 120 includes a drawing unit 200, a reception unit 300, an enlargement ratio correction unit 420, and an enlargement unit 500. Drawing unit 200 and accepting unit 300 are the same as or similar to drawing unit 200 and accepting unit 300 shown in FIG.

  The enlargement ratio correction unit 420 calculates the total sum DAR of the drawing area of the drawing object DO displayed on the display screen 610 when the network diagram NTD is enlarged at the first enlargement ratio EF1. Then, the enlargement ratio correction unit 420 sets the enlargement ratio of the drawing object DO to the first based on the ratio FR (hereinafter, also referred to as a plane filling ratio FR) of the total sum DAR of the drawing area of the drawing object DO to the area of the display screen 610. Is corrected to a second enlargement ratio EF2 equal to or less than the enlargement ratio EF1. Further, the enlargement ratio correction unit 400 outputs information indicating the second enlargement ratio EF2 to the enlargement unit 500.

  For example, the enlargement ratio correction unit 420 includes a drawing area calculation unit 422, a filling ratio calculation unit 424, and an enlargement ratio calculation unit 426.

  The drawing area calculation unit 422 calculates the total sum DAR of the drawing area of the drawing object DO displayed on the display screen 610 when the network diagram NTD is enlarged at the first enlargement ratio EF1 based on the enlargement instruction EINF. For example, the drawing area calculation unit 422 calculates the drawing area of the drawing object DO based on the graphic information GINF held by the drawing unit 200, that is, the graphic information GINF corresponding to the network diagram NTD displayed on the display screen 610. Is calculated. In the example of the network diagram NTD shown in FIG. 1, the drawing area calculation unit 422 sets the total sum of the areas of the drawing objects DO1, DO2, and DO3 on the display screen 610 shown in the comparative example as the total sum DAR of the drawing area of the drawing object DO. calculate.

  Further, in the example of the network diagram NTD shown in FIG. 2, the drawing area calculation unit 422 calculates the total area of the drawing objects DOn1-DOn3 and DO11-DO13 on the display screen 610 shown in the comparative example by the drawing area of the drawing object DO. Is calculated as the total sum DAR. Note that the drawing area calculation unit 422 calculates, for example, the area of a rectangular area circumscribing the label as the drawing area of the drawing object DOl indicating the label of the node.

  Then, the drawing area calculation unit 422 outputs information indicating the total sum DAR of the drawing areas of the drawing object DO to the filling rate calculation unit 424.

  The filling rate calculation unit 424 calculates a ratio FR (flat filling rate FR) of the total sum DAR of the drawing area of the drawing object DO to the area of the display screen 610 as information indicating the arrangement state of the drawing object DO. Then, the filling rate calculation unit 424 outputs information indicating the plane filling rate FR of the drawing object DO to the enlargement rate calculation unit 426.

  The enlargement ratio calculation unit 426 corrects the enlargement ratio of the drawing object DO to a second enlargement ratio EF2 equal to or less than the first enlargement ratio EF1, based on the plane filling ratio FR of the drawing object DO. For example, when the plane filling rate FR of the drawing object DO is larger than a preset threshold, the enlargement ratio calculation unit 426 sets the second enlargement ratio EF2 to be smaller than the first enlargement ratio EF. In this case, for example, the second enlargement ratio EF2 is represented by Expression (2) using the first enlargement ratio EF1 and the plane filling ratio FR of the drawing object DO.

EF2 = EF1 / (EF1- (EF1-1) / (FR + 1)) (2)
As described above, when the plane filling rate FR of the drawing object DO is larger than the preset threshold, the second enlargement rate EF2 decreases as the plane filling rate FR of the drawing object DO increases. Note that the calculation formula of the second enlargement ratio EF2 is not limited to the formula (2). If the plane filling rate FR of the drawing object DO is equal to or less than a preset threshold, the enlargement rate calculator 426 sets the second enlargement rate EF2 to the same value as the first enlargement rate EF1.

  The enlargement section 500 is the same as or similar to the enlargement section 500 shown in FIG. The drawing apparatus 120 shown in FIG. 5 calculates the plane filling rate FR of the drawing object DO instead of calculating the total area TA of the overlapping area of the plurality of drawing objects DO. Accordingly, the drawing apparatus 120 can adjust the enlargement ratio of the drawing object DO when expanding the network diagram NTD even in the network diagram NTD in which it is difficult to calculate the total area TA of the overlapping area of the plurality of drawing objects DO. Note that the configuration of the drawing apparatus 120 is not limited to the example shown in FIG.

  FIG. 6 shows an example of the operation of the drawing apparatus 120 shown in FIG. FIG. 6 shows an example of the operation of the drawing apparatus 120 when enlarging the network diagram NTD displayed on the display screen 610. For example, before the process of step S100 is performed, the network diagram NTD to be enlarged (for example, the network diagram NTD based on the original graphic information GINF1 or the like) is displayed on the display screen 610.

  Note that the operation illustrated in FIG. 6 is one mode of a drawing method of displaying the network diagram NTD on the display screen 610. The operation illustrated in FIG. 6 may be realized only by hardware, or may be realized by controlling hardware by software such as a drawing program. For example, the drawing program may cause a computer to execute the operation illustrated in FIG.

  In the operation shown in FIG. 6, the processing of steps S210 and S220 is executed instead of the processing of step S200 shown in FIG. 3, and the processing of step S310 is executed instead of the processing of step S300 shown in FIG. You. Other operations are the same as or similar to the operations shown in FIG.

  In step S100, the receiving unit 300 receives an enlargement instruction EINF for enlarging the network diagram NTD displayed on the display screen 610, and calculates a first enlargement ratio EF1 based on the enlargement instruction EINF.

  Next, in step S210, as described in FIG. 5, the drawing area calculation unit 422 determines the drawing area of the drawing object DO displayed on the display screen 610 when the network diagram NTD is enlarged at the first enlargement factor EF1. Is calculated.

  Next, in step S220, the filling rate calculation unit 424 calculates a ratio FR (flat filling rate FR) of the sum DAR of the drawing area of the drawing object DO to the area of the display screen 610.

  Next, in step S310, the enlargement ratio calculation unit 426 sets the enlargement ratio of the drawing object DO to the second enlargement ratio equal to or less than the first enlargement ratio EF1, based on the plane filling ratio FR of the drawing object DO calculated in step S220. Correct the magnification to EF2. For example, when the plane filling rate FR of the drawing object DO is larger than a preset threshold, the enlargement ratio calculation unit 426 calculates the second enlargement ratio EF2 using Expression (2) described in FIG. I do. When the plane filling rate FR of the drawing object DO is equal to or smaller than a preset threshold, the enlargement rate calculator 426 sets the second enlargement rate EF2 to the same value as the first enlargement rate EF1.

  Next, in step S400, the enlargement unit 500 enlarges elements other than the drawing object DO in the network diagram NTD by the first enlargement ratio EF1 and enlarges the drawing object DO by the second enlargement ratio EF2. The figure NTD is enlarged. Thereby, the graphic information GINF2 corresponding to the enlarged network diagram NTD is generated.

  Next, in step S500, drawing section 200 displays enlarged network diagram NTD (network diagram NTD enlarged in step S400) on display screen 610. Note that the operation of the drawing apparatus 120 is not limited to the example illustrated in FIG.

  As described above, also in the embodiment shown in FIGS. 5 and 6, the same effects as those of the embodiment shown in FIGS. 2 to 4 can be obtained. For example, the drawing device 120 calculates the total sum DAR of the drawing area of the drawing object DO displayed on the display screen 610 when the network diagram NTD is enlarged at the first enlargement ratio EF1. Further, the drawing apparatus 120 calculates a ratio FR (plane filling rate FR) of the total sum DAR of the drawing area of the drawing object DO to the area of the display screen 610. Then, the drawing apparatus 120 corrects the enlargement ratio of the drawing object DO to a second enlargement ratio EF2 that is equal to or less than the first enlargement ratio EF1, based on the plane filling ratio FR of the drawing object DO.

  For example, when the plane filling rate FR of the drawing object DO is larger than a preset threshold, the drawing apparatus 120 sets the second enlargement ratio EF2 to be smaller than the first enlargement ratio EF. When the plane filling rate FR of the drawing object DO is equal to or less than a preset threshold, the drawing apparatus 120 sets the second enlargement rate EF2 to the same value as the first enlargement rate EF1. Then, the drawing apparatus 120 enlarges the elements other than the drawing object DO in the network diagram NTD by the first enlargement ratio EF1, and enlarges the drawing object DO by the second enlargement ratio EF2.

  As described above, the drawing device 120 calculates the plane filling rate FR of the drawing object DO, instead of calculating the total area TA of the overlapping region of the plurality of drawing objects DO. Accordingly, the drawing apparatus 120 can adjust the enlargement ratio of the drawing object DO when expanding the network diagram NTD even in the network diagram NTD in which it is difficult to calculate the total area TA of the overlapping area of the plurality of drawing objects DO.

  For example, the drawing apparatus 120 corrects the enlargement ratio of the drawing object DO to a second enlargement ratio EF2 equal to or less than the first enlargement ratio EF1 based on the enlargement instruction EINF based on the plane filling rate FR of the drawing object DO. Thereby, it is possible to suppress the occurrence of the overlapping of the drawing objects DO2, that is, to suppress the occurrence of the overlapping of the nodes. As a result, the network diagram NTD displayed on the display screen 610 can be easily viewed, and detailed information (node labels, connection relationships between nodes, etc.) of the nodes can be easily read.

  FIG. 7 shows another embodiment of the drawing method, the drawing device, and the drawing program. The same or similar elements as those described with reference to FIGS. 1 to 6 are denoted by the same or similar reference numerals, and detailed description thereof will be omitted. In the drawing apparatus 112 shown in FIG. 7, a determination unit 510 and a position correction unit 520 are added to the drawing apparatus 110 shown in FIG. The other configuration of the drawing apparatus 112 is the same as or similar to the drawing apparatus 110 shown in FIG. The drawing device 112 is mounted on an information processing device such as a computer having a display device 600 such as a display, an input device 800 such as a mouse, and a memory 700, for example. Processing such as drawing processing executed by the drawing apparatus 112 may be realized only by hardware, or may be realized by controlling hardware by software such as a drawing program. For example, the drawing program may cause a computer to execute a drawing process.

  The drawing device 112 includes a drawing unit 200, a reception unit 300, an enlargement ratio correction unit 410, an enlargement unit 500, a determination unit 510, and a position correction unit 520. Drawing unit 200, accepting unit 300, enlargement ratio correcting unit 410, and enlarging unit 500 are the same as or similar to drawing unit 200, accepting unit 300, enlarging ratio correcting unit 410, and enlarging unit 500 shown in FIG.

  For example, when enlarging the network diagram NTD at the first enlargement ratio EF1, the enlargement unit 500 enlarges the drawing object DO at the second enlargement ratio EF2 instead of enlarging the drawing object DO at the first enlargement ratio EF1. To enlarge. Then, the enlargement unit 500 outputs the graphic information GINF2a of the enlarged network diagram NTD to the determination unit 510 and the position correction unit 520.

  When displaying enlarged network diagram NTD on display screen 610, determination unit 510 specifies the first node that is the node closest to the center of display screen 610. Then, determination section 510 specifies at least one of the nodes connected to the first node as a second node, and determines whether or not drawing object DO representing the second node is displayed on display screen 610. Is determined.

  For example, in the case of the network diagram NTD shown in FIG. 4A, the determination unit 510 specifies the node of “node number 5” as the first node. Then, the determination unit 510 determines a node (eg, “node number 35”, “node number 32” shown in FIG. 4, etc.) connected to the first node (eg, “node number 5” shown in FIG. 4). ) Is specified as the second node.

  For example, among the nodes connected to the first node, the determination unit 510 specifies, as the second node, a node arranged closest to the first node. Note that the specific condition of the second node is not limited to the node arranged at the position closest to the first node. For example, the determination unit 510 may specify a node whose distance to the first node is equal to or less than a predetermined value from the nodes connected to the first node as the second node, or All connected nodes may be specified as the second node. Alternatively, the second node may be specified by a user viewing the network diagram NTD displayed on the display screen 610.

  The determination result of whether or not the drawing object DO representing the second node is displayed on the display screen 610 is notified to the position correction unit 520.

  The position correction unit 520 receives the graphic information GINF2a of the enlarged network diagram NTD from the enlargement unit 500, and outputs information indicating a determination result as to whether or not the drawing object DO representing the second node is displayed on the display screen 610. Received from determination unit 510. When the drawing object DO representing the second node is not displayed on the display screen 610, the position correction unit 520 displays the position of the drawing object DO representing the second node on the enlarged network diagram NTD on the display screen 610. Correct the position to be performed.

  Then, the position correction unit 520 outputs, to the drawing unit 200, the graphic information GINF2b of the enlarged network diagram NTD in which the position of the drawing object DO representing the second node has been corrected. Thereby, the network diagram NTD enlarged so that the drawing object DO representing the second node is displayed on the display screen 610 is displayed on the display screen 610. Since the drawing object DO representing the second node connected to the first node is displayed on the display screen 610, the connection relationship between the first node and the second node can be easily read.

  If the determination unit 510 determines that the drawing object DO representing the second node is to be displayed on the display screen 610, the position correction unit 520 uses the graphic information GINF2a received from the enlargement unit 500 as the graphic information GINF2b. Output to the drawing unit 200. Thereby, the enlarged network diagram NTD is displayed on the display screen 610.

  The configuration of the drawing device 112 is not limited to the example shown in FIG. For example, when the drawing object DO representing the second node is not displayed on the display screen 610, the position correction unit 520 performs the third enlargement so that the drawing object DO representing the second node does not protrude from the display screen 610. The rate may be calculated. In this case, the position correction unit 520 increases the distance between the drawing object DO representing the first node and the drawing object DO representing the second node at the third enlargement ratio instead of the first enlargement ratio EF1. , The position of the drawing object DO representing the second node is calculated. Then, the position correction unit 520 corrects the position of the drawing object DO representing the second node in the enlarged network diagram NTD to the position calculated using the third magnification. Alternatively, the position correction unit 520 sets the distance between the drawing object DO representing the first node and the drawing object DO representing the node connected to the first node regardless of whether it is the second node or not. It may be spread at a magnification of 3.

  FIG. 8 shows an example of the operation of the drawing apparatus 112 shown in FIG. FIG. 8 shows an example of the operation of the drawing apparatus 112 when enlarging the network diagram NTD displayed on the display screen 610. For example, before the process of step S100 is performed, the network diagram NTD to be enlarged (for example, the network diagram NTD based on the original graphic information GINF1 or the like) is displayed on the display screen 610.

  Note that the operation illustrated in FIG. 8 is one mode of a drawing method of displaying the network diagram NTD on the display screen 610. The operation illustrated in FIG. 8 may be realized only by hardware, or may be realized by controlling hardware by software such as a drawing program. For example, the drawing program may cause a computer to execute the operation shown in FIG.

  In addition, in the operation illustrated in FIG. 8, the processing of steps S410 and S420 is added to the operation illustrated in FIG. Other operations are the same as or similar to the operations shown in FIG. Note that the operation of the drawing apparatus 112 is not limited to the example shown in FIG.

  In each of steps S100, S200, S300, and S400, the drawing apparatus 112 executes the same or similar processing as the processing in steps S100, S200, S300, and S400 described with reference to FIG. Then, after the process of step S400 is performed, the operation of the drawing apparatus 112 proceeds to step S410.

  In step S410, the determination unit 510 displays the second node connected to the first node (that is, the drawing object DO representing the second node) on the display screen 610 as described with reference to FIG. It is determined whether or not. Note that the first node is a node closest to the center of the display screen 610 when the enlarged network diagram NTD is displayed on the display screen 610, and the second node is a node connected to the first node. At least one of the nodes.

  When the drawing object DO representing the second node is displayed on the display screen 610, the operation of the drawing device 112 proceeds to Step S500. On the other hand, when the drawing object DO representing the second node is not displayed on the display screen 610, the operation of the drawing device 112 proceeds to Step S420.

  In step S420, the position correction unit 520 corrects the position of the second node in the enlarged network diagram NTD (that is, the position of the drawing object DO representing the second node) to the position displayed on the display screen 610. . Thereby, the graphic information GINF2b corresponding to the network diagram NTD obtained by correcting the position of the drawing object DO representing the second node with respect to the network diagram NTD enlarged in step S400 is generated. After the process in step S420 is performed, the operation of the drawing apparatus 112 proceeds to step S500.

  In step S500, drawing section 200 displays enlarged network diagram NTD on display screen 610. The enlarged network diagram NTD is the network diagram NTD enlarged in step S400 or the network diagram NTD in which the position of the drawing object DO representing the second node is corrected in step S420.

  As described above, also in the embodiment shown in FIGS. 7 and 8, the same effects as those in the embodiment shown in FIGS. 2 to 4 can be obtained. For example, when enlarging the network diagram NTD based on the enlargement instruction EINF, the drawing apparatus 112 overlaps the enlargement ratio of the drawing object DO with the second enlargement ratio EF2 equal to or less than the first enlargement ratio EF1 based on the enlargement instruction EINF. The correction is made based on the total area TA of the region. Thereby, it is possible to suppress the occurrence of the overlapping of the drawing objects DO2, that is, to suppress the occurrence of the overlapping of the nodes. As a result, the network diagram NTD displayed on the display screen 610 can be easily viewed, and detailed information (node labels, connection relationships between nodes, etc.) of the nodes can be easily read.

  Further, when the network diagram NTD after the enlargement is displayed on the display screen 610, the drawing apparatus 112 sets at least one of the nodes connected to the first node closest to the center of the display screen 610 to the second node. To be specified. Then, when the drawing object DO representing the second node is not displayed on the display screen 610, the drawing device 112 displays the position of the drawing object DO representing the second node on the enlarged network diagram NTD on the display screen 610. To the correct position. Thereby, the network diagram NTD enlarged so that the drawing object DO representing the second node is displayed on the display screen 610 is displayed on the display screen 610. Since the drawing object DO representing the second node connected to the first node is displayed on the display screen 610, the connection relationship between the first node and the second node can be easily read. That is, it is possible to prevent the connection relationship between the nodes from becoming difficult to see.

  FIG. 9 shows another embodiment of the drawing method, the drawing apparatus, and the drawing program. The same or similar elements as those described with reference to FIGS. 1 to 8 are denoted by the same or similar reference numerals, and detailed description thereof will be omitted. In the drawing apparatus 122 shown in FIG. 9, a determination unit 510 and a position correction unit 520 are added to the drawing apparatus 120 shown in FIG. Other configurations of the drawing apparatus 122 are the same as or similar to those of the drawing apparatus 120 shown in FIG. The drawing device 122 is mounted on an information processing device such as a computer having a display device 600 such as a display, an input device 800 such as a mouse, and a memory 700, for example. Processing such as drawing processing executed by the drawing apparatus 122 may be realized only by hardware, or may be realized by controlling hardware by software such as a drawing program. For example, the drawing program may cause a computer to execute a drawing process.

  The drawing device 122 includes a drawing unit 200, a reception unit 300, an enlargement ratio correction unit 420, an enlargement unit 500, a determination unit 510, and a position correction unit 520. Drawing unit 200, accepting unit 300, enlargement ratio correcting unit 420, and enlarging unit 500 are the same as or similar to drawing unit 200, accepting unit 300, enlarging ratio correcting unit 420, and enlarging unit 500 shown in FIG.

  For example, when enlarging the network diagram NTD at the first enlargement ratio EF1, the enlargement unit 500 enlarges the drawing object DO at the second enlargement ratio EF2 instead of enlarging the drawing object DO at the first enlargement ratio EF1. To enlarge. Then, the enlargement unit 500 outputs the graphic information GINF2a of the enlarged network diagram NTD to the determination unit 510 and the position correction unit 520.

  The determination unit 510 and the position correction unit 520 are the same as or similar to the determination unit 510 and the position correction unit 520 shown in FIG. For example, when the enlarged network diagram NTD is displayed on the display screen 610, the determination unit 510 identifies the first node that is the node closest to the center of the display screen 610. Then, determination section 510 specifies at least one of the nodes connected to the first node as a second node, and determines whether or not drawing object DO representing the second node is displayed on display screen 610. Is determined.

  When the drawing object DO representing the second node is not displayed on the display screen 610, the position correction unit 520 displays the position of the drawing object DO representing the second node in the enlarged network diagram NTD on the display screen 610. Correct to position. Note that the configuration of the drawing apparatus 122 is not limited to the example shown in FIG.

  FIG. 10 shows an example of the operation of the drawing apparatus 122 shown in FIG. FIG. 10 shows an example of the operation of the drawing apparatus 122 when the network diagram NTD displayed on the display screen 610 is enlarged. For example, before the process of step S100 is performed, the network diagram NTD to be enlarged (for example, the network diagram NTD based on the original graphic information GINF1 or the like) is displayed on the display screen 610.

  Note that the operation illustrated in FIG. 10 is one mode of a drawing method for displaying the network diagram NTD on the display screen 610. The operation illustrated in FIG. 10 may be realized only by hardware, or may be realized by controlling hardware by software such as a drawing program. For example, the drawing program may cause a computer to execute the operation shown in FIG.

  Further, in the operation illustrated in FIG. 10, the processing of steps S410 and S420 is added to the operation illustrated in FIG. Other operations are the same as or similar to the operations shown in FIG. Note that the operation of the drawing apparatus 122 is not limited to the example illustrated in FIG.

  In each of steps S100, S210, S220, S310, and S400, the drawing apparatus 122 executes the same or similar processing as the processing in steps S100, S210, S220, S310, and S400 described with reference to FIG. Then, after the process of step S400 is performed, the operation of the drawing apparatus 122 proceeds to step S410.

  In step S410, the drawing apparatus 122 performs the same or similar processing as the processing in step S410 described with reference to FIG. For example, in step S410, the determination unit 510 displays the second node connected to the first node (that is, the drawing object DO representing the second node) on the display screen 610 as described with reference to FIG. It is determined whether it is performed. When the drawing object DO representing the second node is displayed on the display screen 610, the operation of the drawing device 122 proceeds to Step S500. On the other hand, when the drawing object DO representing the second node is not displayed on the display screen 610, the operation of the drawing device 122 proceeds to Step S420.

  In step S420, the drawing apparatus 122 performs the same or similar processing as the processing in step S420 described with reference to FIG. For example, in step S420, the position correction unit 520 sets the position of the second node in the enlarged network diagram NTD (that is, the position of the drawing object DO representing the second node) to the position displayed on the display screen 610. Fix it. After the processing in step S420 is performed, the operation of the drawing apparatus 122 proceeds to step S500.

  In step S500, the drawing apparatus 122 performs the same or similar processing as the processing in step S500 described with reference to FIG. That is, in step S500, drawing section 200 displays enlarged network diagram NTD on display screen 610.

  As described above, also in the embodiment shown in FIGS. 9 and 10, the same effect as the embodiment shown in FIGS. 5 and 6 can be obtained. For example, when enlarging the network diagram NTD based on the enlargement instruction EINF, the drawing apparatus 122 changes the enlargement ratio of the drawing object DO to the second enlargement ratio EF2 equal to or less than the first enlargement ratio EF1 based on the enlargement instruction EINF. The correction is made based on the DO filling factor FR. Thereby, it is possible to suppress the occurrence of the overlapping of the drawing objects DO2, that is, to suppress the occurrence of the overlapping of the nodes. As a result, the network diagram NTD displayed on the display screen 610 can be easily viewed, and detailed information (node labels, connection relationships between nodes, etc.) of the nodes can be easily read.

  Further, when the network diagram NTD after the enlargement is displayed on the display screen 610, the drawing apparatus 122 sets at least one of the nodes connected to the first node closest to the center of the display screen 610 to the second node. To be specified. Then, when the drawing object DO representing the second node is not displayed on the display screen 610, the position of the drawing object DO representing the second node in the enlarged network diagram NTD is displayed on the display screen 610. To the correct position. Thereby, the network diagram NTD enlarged so that the drawing object DO representing the second node is displayed on the display screen 610 is displayed on the display screen 610. Since the drawing object DO representing the second node connected to the first node is displayed on the display screen 610, the connection relationship between the first node and the second node can be easily read. That is, it is possible to prevent the connection relationship between the nodes from becoming difficult to see.

  FIG. 11 shows an example of hardware for executing a drawing program. The same or similar elements as those described with reference to FIGS. 1 to 10 are denoted by the same or similar reference numerals, and detailed description thereof will be omitted. For example, the drawing program implements the functions of the drawing apparatuses 100, 110, 120, 112, and 122 shown in FIGS. 1, 2, 5, 7, and 9 on the computer CP.

  The computer CP has a processor PU, a memory MEM, a hard disk device HDD, an output unit OUTU, an input unit INU, and an optical drive device ODR. The processor PU, the memory MEM, the hard disk device HDD, the output unit OUTU, the input unit INU, and the optical drive device ODR are connected to the bus BUS. The functions of the drawing apparatuses 100, 110, 112, 120, and 122 are realized by, for example, a processor PU, a memory MEM, and a hard disk drive HDD.

  The optical drive device ODR can mount a removable disk DIS such as an optical disk, and reads and records information recorded on the mounted removable disk DIS.

  The output unit OUTU is, for example, a unit that outputs a result of a process executed by the processor PU, and corresponds to the display device 600 illustrated in FIG. 1 and the like. An example of the output unit OUTU is a display, a touch panel, or the like. The input unit INU is, for example, a unit that receives an operation from a user and inputs data to the computer CP, and corresponds to the input device 700 illustrated in FIG. 2 and the like. An example of the input unit INU is a keyboard, a mouse, a touch panel, or the like.

  The memory MEM stores, for example, an operating system of the computer CP. In addition, the memory MEM stores, for example, an application program such as a drawing program for causing the processor PU to execute the operations illustrated in FIGS. 3, 6, 8, 10, and the like. Note that an application program such as a drawing program may be stored in the hard disk drive HDD.

  Further, a part of the memory MEM may be allocated to the memory 700 illustrated in FIG. Alternatively, the memory 700 shown in FIG. 2 or the like may be allocated to a storage device (not shown) different from the memory MEM.

  An application program such as a drawing program can be recorded on a removable disk DIS such as an optical disk and distributed. For example, the computer CP may read an application program such as a drawing program from the removable disk DIS via the optical drive ODR, and store the application program in the memory MEM or the hard disk drive HDD. Further, the computer CP may download an application program such as a drawing program via a communication device (not shown) connected to a network such as the Internet, and store the application program in the memory MEM or the hard disk drive HDD.

  For example, the processor PU executes the drawing program stored in the memory MEM or the like to thereby control the drawing devices 100, 110, 120, 112, and 122 shown in FIGS. 1, 2, 5, 7, and 9. Implement the function. That is, the drawing devices 100, 110, 112, 120, and 122 can be realized by cooperation of the processor PU, the memory MEM, and the hard disk device HDD.

  The hardware that executes the drawing program is not limited to the example illustrated in FIG. For example, the computer CP may include an input / output unit such as a touch panel instead of the input unit INU and the output unit OUTU.

  The features and advantages of the embodiments will be apparent from the above detailed description. This is intended to cover the features and advantages of the embodiments described above without departing from the spirit and scope of the claims. In addition, any person having ordinary skill in the art can easily think of any improvements and changes. Therefore, there is no intention to limit the scope of the inventive embodiment to the above, and it is possible to rely on appropriate improvements and equivalents included in the scope disclosed in the embodiment.

  100, 110, 112, 120, 122 {drawing device; 200} drawing unit; 300 # receiving unit; 400, 410, 420 {enlargement ratio correction unit; 412} overlap area calculation unit; 414, 426 {enlargement ratio calculation unit; 422 {drawing area calculation unit; 424} filling factor calculation unit; 500 enlargement unit; 510 determination unit; 520 position correction unit; 600 display device; 610 display screen; 700 memory; {Computer; DIS} Removable Disk; HDD Hard Disk Device; INU Input Unit; MEM Memory; ODR Optical Drive Device; OUTU Output Unit; PU Processor

Claims (11)

A drawing method for displaying a network diagram expressing a relationship between a plurality of nodes on a display screen using a drawing object representing a node and a line connecting the nodes,
Receiving an enlargement instruction to enlarge the first network diagram displayed on the display screen;
Based on an arrangement state of the drawing object in a second network diagram generated when the first network diagram is enlarged at a first enlargement ratio based on the enlargement instruction, the enlargement ratio of the drawing object is set to the first magnification. Correct to a second magnification that is less than or equal to one,
Generating an enlarged network diagram by enlarging elements other than the drawing object in the first network diagram at the first magnification, and enlarging the drawing object at the second magnification ;
Show network view after the enlargement in the display screen,
A drawing method, wherein the processing is executed by a computer . The drawing method according to claim 1,
Detecting an overlapping area in which the plurality of drawing objects overlap each other, and calculating a total area of the overlapping area when the first network diagram is enlarged at the first enlargement ratio, as information indicating the arrangement state. A drawing method characterized by the following. 3. The drawing method according to claim 2, wherein
A drawing method, wherein the second enlargement ratio is reduced as the total area of the overlap region increases. In the drawing method according to any one of claims 2 and 3,
For one node, a plurality of types of drawing objects are displayed on the display screen,
A drawing method, wherein the overlapping area is detected for each type of the drawing object. The drawing method according to claim 4,
A drawing method, wherein the plurality of types of drawing objects are a symbol including a position of a node and a label indicating information of the node. The drawing method according to claim 1,
Calculating a total drawing area of the drawing object displayed on the display screen when the first network diagram is enlarged at the first magnification ratio;
A drawing method, wherein a ratio of a total sum of the drawing area to an area of the display screen is calculated as information indicating the arrangement state. The drawing method according to claim 6,
When the ratio is larger than a preset threshold, the second enlargement ratio is made smaller than the first enlargement ratio. The drawing method according to claim 7,
When the ratio is equal to or less than the threshold, the second enlargement ratio is set to the first enlargement ratio. In the drawing method according to any one of claims 1 to 8,
When the enlarged network diagram is displayed on the display screen, a first node which is a node closest to the center of the display screen is specified, and at least one of nodes connected to the first node is specified. Is specified as a second node, and it is determined whether the drawing object representing the second node is displayed on the display screen,
When the drawing object representing the second node is not displayed on the display screen, the position of the drawing object representing the second node in the enlarged network diagram is corrected to a position displayed on the display screen. A drawing method characterized by the above-mentioned. A drawing device that displays a network diagram expressing a relationship between a plurality of nodes on a display screen using a drawing object representing a node and a line connecting the nodes,
A receiving unit that receives an enlargement instruction for enlarging the first network diagram displayed on the display screen;
Based on an arrangement state of the drawing object in a second network diagram generated when the first network diagram is enlarged at a first enlargement ratio based on the enlargement instruction, the enlargement ratio of the drawing object is set to the first magnification. An enlargement ratio correction unit that corrects a second enlargement ratio equal to or smaller than 1;
An enlarging unit that generates an enlarged network diagram by enlarging elements other than the drawing object in the first network diagram at the first enlargement ratio and enlarging the drawing object at the second enlargement ratio; ,
Drawing apparatus characterized by having a drawing unit for displaying the network view after the enlargement in the display screen. A drawing program for causing a computer to execute a drawing process of displaying a network diagram expressing a relationship between a plurality of nodes on a display screen using a drawing object representing a node and a line connecting the nodes,
Receiving an enlargement instruction to enlarge the first network diagram displayed on the display screen;
Based on an arrangement state of the drawing object in a second network diagram generated when the first network diagram is enlarged at a first enlargement ratio based on the enlargement instruction, the enlargement ratio of the drawing object is set to the first magnification. Correct to a second magnification that is less than or equal to one,
Generating an enlarged network diagram by enlarging elements other than the drawing object in the first network diagram at the first magnification, and enlarging the drawing object at the second magnification ;
Drawing program and displaying the network view after the enlargement in the display screen.