JP2009134105A - Display device, display control method, display control program and recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To display a number of marks while maintaining visibility. <P>SOLUTION: The display device 100 comprises a detection part 101, a control part 102, and a display part 103. The detection part 101 detects a scale of a map used. The control part 102 controls to vary the display form of a mark showing a facility according to the scale detected by the detection part 101. The control part 102 representatively varies the display form of the mark according to the scale when the scale detected by the detection part 101 is a predetermined value or less. The display part 103 displays a map screen by the control of the control part 102. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a display device, a display control method, a display control program, and a recording medium.

  Conventionally, a mobile device such as a vehicle is equipped with a display device that displays a map screen on a display, such as a navigation device. In such a display device, in addition to displaying only the map screen, the current position information is superimposed on the map screen to display where the current position is, or the current position is displayed on the map screen. The route to the destination is displayed by superimposing the information.

  On the map screen, features such as roads, rivers, and facilities are displayed. In particular, for facilities, marks are displayed using icons to easily and clearly represent the facilities. When displaying a facility mark, when the scale of the map is large (in the case of an enlarged display such as an urban area display), the mark can be displayed at a position corresponding to the facility, but when the scale of the map is small ( In the case of wide area display), the mark may be displayed in a random manner, or the mark may be displayed in an overlapping manner, thereby reducing the visibility of the mark or the visibility of the map screen.

  Therefore, a priority is set for each facility genre in advance for the mark indicating the facility, and when the scale of the map is large or the marks overlap, the mark is displayed according to the priority. Techniques have been proposed (see, for example, Patent Document 1 below).

JP 2004-163592 A

  However, although the technique of Patent Document 1 described above can display a mark according to priority, the display format of the mark is always constant with respect to the scale, and the mark corresponding to the map screen cannot be displayed. An example of such a problem is that the screen is difficult to see depending on the scale. Specifically, in an area where marks are dense such as urban areas, only a few genres of higher priority can be displayed, and the mark cannot be used effectively.

  In order to solve the above-described problems and achieve the object, a display device according to a first aspect of the present invention is a display device for displaying a map screen, wherein the detection device detects the scale of the map being used, and the detection device. And a display means for displaying the map screen under the control of the control means.

  According to a thirteenth aspect of the present invention, there is provided a display control method for a display device for displaying a map screen, wherein a detection step for detecting a scale of a map in use is detected, and the detection is performed in the detection step. The method includes a control step of changing a display format of a mark indicating a facility according to a scale, and a display step of displaying the map screen by the control of the control step.

  A display control program according to a fourteenth aspect of the invention causes a computer to execute the display control method according to the thirteenth aspect.

  According to a fifteenth aspect of the present invention, there is provided a recording medium in which the display control program according to the fourteenth aspect is recorded in a computer-readable manner.

  Exemplary embodiments of a display device, a display control method, a display control program, and a recording medium according to the present invention will be explained below in detail with reference to the accompanying drawings.

(Embodiment)
(Functional configuration of display device)
A functional configuration of the display device 100 according to the embodiment of the present invention will be described. FIG. 1 is a block diagram illustrating an example of a functional configuration of the display device 100 according to the embodiment. In FIG. 1, the display device 100 includes a detection unit 101, a control unit 102, a display unit 103, a mark setting unit 104, and a priority setting unit 105.

  The detection unit 101 detects the scale of the map being used. The timing of detection by the detection unit 101 includes a time when a map screen is displayed such as when the power of the display device 100 is turned on, or when the scale of the map screen is changed by an input from the user.

  The control unit 102 changes the display format of the mark indicating the facility displayed in the display area according to the scale detected by the detection unit 101. Note that the control unit 102 changes the mark display format in consideration of the mark arrangement position. Further, the control unit 102 may perform control to change the display format only for marks of a specific genre set in advance.

  The mark is a design of a facility such as a government office, a hospital, a police station, a fire department, a library, a school, a station, an airport, a parking lot, a gas station, or a convenience store. Mark display formats include a wide range of display formats such as flat display, three-dimensional display, mark inclination, blinking, etc. Typically, as will be described later, the mark size, color, shape, etc. Is mentioned.

  The display unit 103 displays a map screen under the control of the control unit 102. As the display unit 103, a display such as a display capable of displaying a map screen is used.

  In the present embodiment, it is desirable that the control unit 102 changes the mark display format according to the scale when the scale detected by the detection unit 101 is equal to or smaller than a predetermined value. Specifically, the predetermined value is a scale for wide-area display, and is a value set in advance, for example. The scale is less than or equal to a predetermined value because the smaller the scale is, the more the display area is expanded, that is, the number of marks is increased, and therefore the marks are liable to be disturbed or overlapped. This is because it is effective.

  In the present embodiment, the control unit 102 may change the mark display format according to the scale detected by the detection unit 101 and the number of marks to be displayed. Specifically, the control unit 102 changes the mark display format in consideration of the proportion of the mark in the display area. The reason why the display format is made different depending on the number of marks is that, for example, if the number of marks increases, the marks are likely to be disturbed or overlapped.

  In the present embodiment, the control unit 102 may change the size of the mark according to the scale detected by the detection unit 101. Specifically, the control unit 102 makes the mark smaller as the scale becomes smaller. Moreover, the control part 102 may enlarge a mark, so that a scale is large.

  In the present embodiment, the control unit 102 may change the color of the mark according to the scale detected by the detection unit 101. The color of the mark that changes depending on the scale may be the color of the entire mark, the color of only the outline, or the color of only the design within the outline.

  In the present embodiment, the control unit 102 may change the shape of the mark according to the scale detected by the detection unit 101. The shape of the mark may be any of a triangular shape, a quadrangular shape, other polygonal shapes, an arrow shape, a character shape, a star shape, and the like, but typically a round shape is desirable. By making the shape round, the display area of the mark can be reduced, and a large area of the map screen can be secured.

  In the present embodiment, the mark setting unit 104 is an arbitrary component. The mark setting unit 104 sets the color or shape of the mark. In this case, the control unit 102 causes the mark setting unit 104 to display a color or shape mark. The color or shape of the mark set in the mark setting unit 104 may be changed as appropriate by input from the user.

  In the present embodiment, the control unit 102 may arrange the marks so that the number of marks to be displayed is not changed regardless of the scale detected by the detection unit 101. In this configuration, even if the scale is changed, in addition to the arrangement of the marks, for example, by controlling the size, shape, etc., the number of displayed marks is not changed.

  In the present embodiment, the control unit 102 may arrange the marks so as not to overlap each other. When facilities displayed using marks are close to each other on the map screen and the marks are superimposed when the marks are displayed on the map screen as they are, for example, each mark is not superimposed using a leader line etc. What should I do?

  In the present embodiment, the priority setting unit 105 is an arbitrary component. The priority setting unit 105 sets the priority for displaying the mark with priority for each genre. In this case, when the marks overlap, the control unit 102 arranges the genre mark having a higher priority among the priorities set in the priority setting unit 105 in front. The priority set in the priority setting unit 105 may be changed as appropriate by input from the user.

  Further, in the present embodiment, when the marks overlap, the control unit 102 may perform control so that a mark of a genre having a low priority among the priorities set in the priority setting unit 105 is not displayed. .

  In the present embodiment, the mark may be a logo mark indicating an organization name, a trade name, or a product name. Specifically, the logo mark is a mark indicating a company name or a brand name. For example, the logo mark enables identification of each company (store) with respect to a mark of a gas station. Also, in the various settings described above, it is possible to set priorities for each company. Specifically, for example, it is possible to set a higher priority for the marks of affiliated stores that are frequently used by users in a gas station.

(Display control processing procedure of display device)
Next, a display control processing procedure of the display device 100 will be described with reference to FIG. FIG. 2 is a flowchart illustrating an example of a display control processing procedure of the display device 100 according to the embodiment.

  In the flowchart of FIG. 2, the display device 100 determines whether or not the map scale has changed (step S201). In step S201, it is in a standby state until the scale of the map changes (step S201: No loop). When the scale of the map changes (step S201: Yes), control is performed to change the display format of the mark (step S202). . And a mark is displayed on a map screen (step S203), and a series of processings are ended.

  As described above, since the display device 100 according to the present embodiment is configured to change the display format of the mark indicating the facility in accordance with the scale, the mark corresponding to the scale can be displayed. Therefore, it is possible to effectively use the mark and display an easy-to-see mark on the map screen. Thereby, the user can visually recognize the map and the mark easily and quickly.

  In the present embodiment, when the scale is less than or equal to a predetermined value, if the mark display format is changed according to the scale, a mark with good visibility can be obtained even when the mark is scattered in a wide area display. Can be displayed. Therefore, the user can visually recognize the map and the mark easily and quickly.

  Also, in this embodiment, if the display format of the mark is made different according to the scale and the number of marks, a mark with good visibility can be obtained even when the number of marks is large and the marks are scattered. Can be displayed. Therefore, the user can visually recognize the map and the mark easily and quickly.

  Further, in the present embodiment, if the size of the mark is changed according to the scale, the mark can be reduced when the scale is small, and the mark can be enlarged when the scale is large. Thereby, it is possible to display a mark having a size that is balanced with the map screen. That is, it is possible to display a screen that is easy for the user to see. Therefore, the user can visually recognize the map and the mark easily and quickly.

  In the present embodiment, if the color of the mark is changed according to the scale, a screen that allows the user to easily identify the mark can be displayed. Therefore, the user can visually recognize the map and the mark easily and quickly.

  In the present embodiment, if the shape of the mark is changed according to the scale, a screen that is easy for the user to identify can be displayed. Therefore, the user can visually recognize the map and the mark easily and quickly.

  In the present embodiment, if the mark shape is round according to the scale, the mark display area can be reduced, and a wide map screen area can be secured. Thereby, even if it is an area where many facilities are crowded, an easy-to-see mark can be displayed.

  In this embodiment, if a mark of a set color or shape is displayed, a mark of a color or shape according to the user's preference can be displayed. Therefore, it is possible to display a screen that is easy for the user to identify. Thereby, the user can visually recognize the map and the mark easily and quickly.

  Further, in this embodiment, if the number of marks to be displayed is not changed regardless of the scale, the amount of information notified to the user is not reduced.

  In the present embodiment, if the marks are arranged so as not to overlap each other, a screen that is easy to see for the user can be displayed.

  In the present embodiment, when marks overlap, if a mark of a genre having a high priority for displaying the mark with priority is arranged in front, the mark desired by the user is given priority. Can be displayed.

  Further, in the present embodiment, when the marks overlap, it is possible to display only the mark desired by the user by not displaying the mark of the genre having a lower priority among the set priorities. .

  In the present embodiment, if the mark is a logo mark indicating an organization name, trade name, or product name, the color or shape of the mark is set for the mark of affiliated stores and the like that are frequently used by users. Or setting a high priority, the user can grasp the facility in detail.

  Examples of the present invention will be described below. In the present embodiment, an example in which the display device 100 of the present invention is implemented by a navigation device mounted on a vehicle will be described.

(Hardware configuration of navigation device)
The hardware configuration of the navigation device 300 according to the present embodiment will be described with reference to FIG. FIG. 3 is a block diagram illustrating an example of a hardware configuration of the navigation device 300 according to the present embodiment.

  In FIG. 3, a navigation device 300 is mounted on a moving body such as a vehicle, and includes a CPU 301, ROM 302, RAM 303, magnetic disk drive 304, magnetic disk 305, optical disk drive 306, optical disk 307, and audio. An I / F (interface) 308, a speaker 309, an input device 310, a video I / F 311, a display 312, a communication I / F 313, a GPS unit 314, and various sensors 315 are provided. Each component 301 to 315 is connected by a bus 320.

  The CPU 301 governs overall control of the navigation device 300. The ROM 302 stores various programs such as a boot program, a current location calculation program, a route search program, a route guidance program, and a display control program. The RAM 303 is used as a work area for the CPU 301.

  The current location calculation program, for example, calculates the current location of the vehicle (the current location of the navigation device 300) based on output information from a GPS unit 314 and various sensors 315 described later.

  The route search program searches for an optimal route from the departure point to the destination point using map data or the like recorded on a magnetic disk 305 described later. Here, the optimum route is the shortest (or fastest) route to the destination point or the route that best meets the conditions specified by the user. Further, not only the destination point but also a route to a stop point or a rest point may be searched. The searched guidance route is output to the audio I / F 308 and the video I / F 311 via the CPU 301.

  The route guidance program is based on guidance route information searched by executing a route search program, vehicle current location information calculated by executing a current location calculation program, and map data read from the magnetic disk 305. Real-time route guidance information is generated. The generated route guidance information is output to the audio I / F 308 and the video I / F 311 via the CPU 301.

  The display control program detects the scale of the map displayed on the display 312 and determines the display format of the mark indicating the facility according to the detected scale. The determined display format mark is output to the video I / F 311 via the CPU.

  The magnetic disk drive 304 controls the reading / writing of the data with respect to the magnetic disk 305 according to control of CPU301. The magnetic disk 305 records data written under the control of the magnetic disk drive 304. As the magnetic disk 305, for example, an HD (hard disk) or an FD (flexible disk) can be used.

  The optical disk drive 306 controls the reading / writing of the data with respect to the optical disk 307 according to control of CPU301. The optical disk 307 is a detachable recording medium from which data is read according to the control of the optical disk drive 306. As the optical disc 307, a writable recording medium can be used. In addition to the optical disk 307, the removable recording medium may be an MO, a memory card, or the like.

  Examples of information recorded on the magnetic disk 305 and the optical disk 307 include map data and function data. Map data has background data that represents features (features) such as buildings, rivers, and the surface of the earth, and road shape data that represents the shape of the road, and is composed of multiple data files divided by district. Has been. This map data is depicted two-dimensionally or three-dimensionally on the display screen of the display 312. When the navigation device 300 is guiding a route, the map data and a vehicle mark indicating the current location of the vehicle acquired by the GPS unit 314 to be described later are displayed in an overlapping manner.

  An example of information recorded on the magnetic disk 305 or the optical disk 307 is a mark indicating a facility. This mark is a mark set for each genre, for example, a mark indicating a gas station, a restaurant, and the like. Note that the mark is not limited to that set for each genre, and may be set for each affiliated store, for example, by subdividing the gas station.

  The audio I / F 308 is connected to a speaker 309 for audio output. The speaker 309 outputs sound. Examples of the input device 310 include a remote controller having a plurality of keys for inputting characters, numerical values, and various instructions, a keyboard, a mouse, and a touch panel. The input device 310 may be realized by any one of a remote controller, a keyboard, a mouse, and a touch panel, or may be realized by a plurality of forms.

  The video I / F 311 is connected to the display 312. Specifically, the video I / F 311 includes, for example, a graphic controller that controls the entire display 312, a buffer memory such as a VRAM (Video RAM) that temporarily records image information that can be displayed immediately, and a graphic controller. Based on the output image data, the display 312 is configured by a control IC or the like.

  The display 312 displays icons such as the above-described marks, cursors, menus, windows, or various data such as characters and images. On the display 312, the above-described map data is drawn two-dimensionally or three-dimensionally. The map data displayed on the display 312 can be displayed with a mark representing the current location of the vehicle on which the navigation device 300 is mounted. The current location of the vehicle is calculated by the CPU 301.

  As this display 312, for example, a CRT, a TFT liquid crystal display, a plasma display, or the like can be adopted. The display 312 is installed near the dashboard of the vehicle, for example. A plurality of displays 312 may be installed in the vehicle, for example, in the vicinity of the dashboard of the vehicle or in the vicinity of the rear seat of the vehicle.

  The communication I / F 313 is connected to a network via wireless and functions as an interface between the navigation device 300 and the CPU 301. The communication I / F 313 is further connected to a communication network such as the Internet via wireless, and also functions as an interface between the communication network and the CPU 301.

  Communication networks include LANs, WANs, public line networks and mobile phone networks. Specifically, the communication I / F 313 includes, for example, an FM tuner, a VICS (Vehicle Information and Communication System) / beacon receiver, a radio navigation device, and other navigation devices. Get road information such as regulations. VICS is a registered trademark.

  The communication I / F 313 is configured by an in-vehicle wireless device that performs two-way wireless communication with a wireless device installed on the roadside when, for example, DSRC (Dedicated Short Range Communication) is used. Traffic information and map information Get various information. A specific example of DSRC is ETC (non-stop automatic fee payment system).

  The GPS unit 314 receives radio waves from GPS satellites and outputs information indicating the current location of the vehicle. The output information of the GPS unit 314 is used when the current position of the vehicle is calculated by the CPU 301 together with output values of various sensors 315 described later. The information indicating the current location is information for specifying one point on the map data, such as latitude / longitude and altitude.

  The various sensors 315 output information that can determine the position and behavior of the vehicle, such as a vehicle speed sensor, an acceleration sensor, and an angular velocity sensor. The output values of the various sensors 315 are used for the calculation of the current location of the vehicle by the CPU 301 and the measurement of the change in speed and direction.

  The detection unit 101, the control unit 102, the display unit 103, the mark setting unit 104, and the priority setting unit 105 included in the display device 100 illustrated in FIG. 1 are the ROM 302 in the navigation device 300 illustrated in FIG. The CPU 301 executes a predetermined program using programs and data recorded in the RAM 303, the magnetic disk 305, the optical disk 307, etc., and controls each part in the navigation device 300, thereby realizing its function.

  That is, the navigation device 300 according to the present embodiment executes the display control program recorded in the ROM 302 as a recording medium in the navigation device 300, so that the functions of the display device 100 shown in FIG. The display control processing procedure shown can be executed.

(Example of display control processing when changing the mark size)
Next, an example of the display control process when changing the size of the mark will be described with reference to FIG. FIG. 4 is a flowchart showing an example of display control processing when changing the size of a mark.

  In the flowchart of FIG. 4, the navigation apparatus 300 determines whether or not the map scale has changed (step S401). In step S401, although the details will be described later, it is assumed that the display screen shown in FIG. 10 is displayed. In step S401, it is in a standby state until the map scale is changed (step S401: No loop), and when the map scale is changed (step S401: Yes), it is determined whether or not the map has been changed to a small scale (step S402). .

  If it is determined in step S402 that the scale has been changed to a small scale (step S402: Yes), it is determined whether or not the scale is a predetermined scale (step S403). Specifically, the predetermined scale is a scale set in advance as a wide area display. If it is determined in step S403 that the scale is a predetermined scale (step S403: Yes), it is determined whether or not the number of displayed marks is equal to or greater than a certain number (step S404). If it is determined in step S404 that the number of marks is equal to or greater than a certain number (step S404: Yes), control is performed to reduce the marks (step S405). And a mark is displayed on a map screen (step S406), and a series of processings are ended. Note that the display screen when the mark is made small is the screen shown in FIG. 11, although details will be described later.

  On the other hand, if it is determined in step S402 that the scale has not changed to a small scale (step S402: No), that is, if it is determined that the scale has changed to a large scale, the process proceeds to step S406. If it is determined in step S403 that the scale is not a predetermined scale (step S403: No), the process proceeds to step S406. If it is determined in step S404 that the number of marks is not a certain number or more (step S404: No), the process proceeds to step S406.

  In the above-described processing, the order of step S403 (determination as to whether or not the scale is a predetermined scale) and step S404 (determination as to whether or not the number of marks is equal to or greater than a certain number) is arbitrary. In addition, if it is determined in step S402 that the scale has been changed to a small scale without performing the determinations in steps S403 and S404 (step S402: Yes), the process may be shifted to step S405 (control for reducing the mark). Good. In step S402, when it is determined that the scale is not small (step S402: No), that is, when it is determined that the scale has been changed to a large scale, control for increasing the mark may be performed. The display screen when the mark is enlarged is the screen shown in FIG. 16, although details will be described later.

  According to the above-described processing, when the scale is equal to or smaller than a predetermined value, the mark display format is changed according to the scale, so that even when the mark is scattered in a wide area display, a mark with good visibility is displayed. Can be made.

  Further, since the display format of the marks is changed according to the number of marks to be displayed, even when the number of marks is large and the marks are scattered, it is possible to display a mark with good visibility.

  In addition, since the size of the mark is changed according to the scale, that is, the mark is reduced in the case of the small scale, the mark having a size balanced with the map screen can be displayed. . Therefore, it is possible to display a screen that is easy for the user to see. Thereby, the user can visually recognize the map and the mark easily and quickly.

(Example of display control processing when changing the shape and size of the mark)
Next, an example of display control processing when changing the shape and size of the mark will be described with reference to FIG. FIG. 5 is a flowchart illustrating an example of display control processing when changing the shape and size of a mark. Note that the flowchart shown in FIG. 5 is based on the assumption that the processing of the flowchart shown in FIG. 4 has been performed.

  In the flowchart of FIG. 5, the navigation device 300 determines whether or not the scale of the map has changed (step S501). In step S501, the details will be described later, but the display screen shown in FIG. 11 is displayed. In step S501, it is in a standby state until the map scale is changed (step S501: No loop), and when the map scale is changed (step S501: Yes), it is determined whether or not the map has been changed to a small scale (step S502). .

  If it is determined in step S502 that the scale has changed to a small scale (step S502: Yes), control is performed to reduce the mark and round the frame of the mark (step S503). Prior to the processing in step S503, processing similar to that in step S403 (determination as to whether or not the scale is a predetermined scale) and step S404 (determination as to whether or not the number of marks is a predetermined number or more) shown in FIG. 4 is performed. You may do it.

  And a mark is displayed on a map screen (step S504), and a series of processings are ended. The display screen when the mark is reduced and the mark frame is rounded is the screen shown in FIG.

  On the other hand, if it is determined in step S502 that the scale has not changed to a small scale (step S502: No), that is, if it is determined that the scale has been changed to a large scale, control is performed to increase the mark (step S505), and the process proceeds to step S504. The display screen when the mark is enlarged is the screen shown in FIG. 10, although details will be described later.

  According to the above-described processing, since the shape of the mark is changed according to the scale, a screen that allows the user to easily identify the mark can be displayed. In the above-described processing, the mark shape is rounded according to the scale, so that the mark display area can be reduced, and a wide map screen area can be secured. Thereby, even if it is an area where many facilities are crowded, an easy-to-see mark can be displayed.

(Example of display control processing when changing the mark to the color and shape to be set)
Next, an example of display control processing when changing the mark to the set color and shape will be described with reference to FIGS.

  Before entering the description of the display control process, first, setting of the color and shape of the mark will be described with reference to FIG. FIG. 6 is an explanatory diagram illustrating an example of setting information regarding the color and shape of the mark. In FIG. 6, the setting information 600 includes registration information 610 registered in advance and user setting information 620 whose settings can be changed by an input from a user. Note that the user setting information 620 may be set uniformly in advance.

  In the registration information 610, a mark corresponding to each facility is registered. In the user setting information 620, “other marks” displayed on the small scale map screen and their colors are set. That is, the mark corresponding to the facility indicates the shape and color of “another mark” displayed on the small-scale map screen. Specifically, taking “school” as an example, the normal mark is “sentence”, and a red square is displayed at a small scale.

  In the setting information 600 shown in FIG. 6, the mark for each genre is used, but it is of course possible to set “other mark” and its color for the logo mark unique to each affiliated store. .

  FIG. 7 is a flowchart illustrating an example of display control processing when changing a mark to a set color and shape. Note that the flowchart shown in FIG. 7 is based on the assumption that the processing of the flowchart shown in FIG. 4 has been performed.

  In the flowchart of FIG. 7, the navigation apparatus 300 determines whether or not the map scale has changed (step S701). In step S701, although the details will be described later, it is assumed that the display screen shown in FIG. 11 is displayed. In step S701, it is in a standby state until the scale of the map is changed (step S701: No loop). When the scale of the map is changed (step S701: Yes), it is determined whether or not the map is changed to a small scale (step S702). .

  If it is determined in step S702 that the scale has changed to a small scale (step S702: Yes), control is performed to change the mark to the set color and shape (step S703). Prior to the processing in step S703, processing similar to that in steps S403 (determining whether the scale is a predetermined scale) and step S404 (determining whether the number of marks is equal to or greater than a certain number) shown in FIG. 4 is performed. You may do it.

  And a mark is displayed on a map screen (step S704), and a series of processings are ended. In step S704, the mark of each facility displayed on the map screen is the same as the user setting information 620 shown in FIG. 6. As a specific example, for example, the school is displayed as a red square mark. The display screen when the mark is changed to the set color and shape is the screen shown in FIG.

  On the other hand, if it is determined in step S702 that the scale has not been changed to a small scale (step S702: No), that is, if it is determined that the scale has been changed to a large scale, control to increase the mark is performed (step S705), and the process proceeds to step S704. The display screen when the mark is enlarged is the screen shown in FIG. 10, although details will be described later.

  According to the above-described processing, the set color or shape mark is displayed, so that the color or shape mark according to the user's preference can be displayed. Therefore, it is possible to display a screen that can be easily identified for the user, and the user can easily and quickly view the map and the mark.

(Example of display control processing when placing a high priority mark in front)
Next, an example of display control processing when placing a high priority mark in front will be described with reference to FIGS.

  Prior to the description of the display control process, priority setting will be described first with reference to FIG. FIG. 8 is an explanatory diagram illustrating an example of priority information. In FIG. 8, the priority information 800 includes registration information 810 registered in advance and user setting information 820 whose settings can be changed by an input from a user. Note that the user setting information 820 may be uniformly set in advance.

  In the registration information 810, a mark corresponding to each facility is registered. In the user setting information 820, a priority order for display on a small scale map screen is set. The priority information 800 indicates the priority order of marks displayed in front when marks corresponding to facilities are overlapped on a small scale map screen. Specifically, in the case of “convenience store” in the priority information 800, the mark is “C”, the priority is “2”, and the priority is “1” at a small scale. When the mark is overlapped with the “gas station” mark, it is arranged behind the “gas station”, and even if it is overlapped with the mark of other facilities, it is indicated in front.

  In the priority information 800 shown in FIG. 8, the priority order for each genre is set. However, it is of course possible to set the priority order for a logo mark unique to each affiliated store.

  FIG. 9 is a flowchart illustrating an example of display control processing when placing a high priority mark in front. Note that the flowchart shown in FIG. 9 is premised on the processing of the flowchart shown in FIG. 5 being performed.

  In the flowchart of FIG. 9, the navigation apparatus 300 determines whether the scale of the map has changed (step S901). In step S901, although the details will be described later, it is assumed that the display screen shown in FIG. 12 is displayed. In step S901, it is in a standby state until the scale of the map is changed (step S901: No loop). When the scale of the map is changed (step S901: Yes), it is determined whether or not the map is changed to a small scale (step S902). .

  If it is determined in step S902 that the scale has been changed to a small scale (step S902: Yes), it is determined whether or not the size of the mark is minimum (step S903). If it is determined in step S903 that the size of the mark is not the minimum (step S903: No), control is performed to reduce the mark (step S904), and it is determined whether or not the marks overlap (step S905). If it is determined in step S903 that the mark size is minimum (step S903: Yes), the process proceeds to step S905.

  If it is determined in step S905 that the marks are superimposed (step S905: Yes), priority information is acquired (step S906). Then, a facility mark with a high priority is placed in front (step S907). Thereafter, a mark is displayed on the map screen (step S908), and the series of processes is terminated. Note that the display screen when a mark with a high priority is arranged in front is the screen shown in FIG. 14, although details will be described later.

  Further, in step S907, not only the facility mark with a higher priority is placed in front, but only the facility mark with a higher priority is displayed, and the facility with a lower priority is not displayed. Good. The display screen when only the high priority mark is displayed is the screen shown in FIG. 15, although the details will be described later.

  On the other hand, when it is determined in step S905 that the mark is not overlapped (step S905: No), the process proceeds to step S908. If it is determined in step S902 that the scale has not been changed to a small scale (step S902: No), that is, if it is determined that the scale has been changed to a large scale, control for increasing the mark is performed (step S909), and the process proceeds to step S908. The display screen when the mark is enlarged is the screen shown in FIG. 11, although details will be described later.

  In the above-described processing, it is assumed that the mark is displayed in a round shape, that is, based on the flowchart shown in FIG. 5 and the display screen shown in FIG. If it is premised that it is, that is, assuming the flowchart shown in FIG. 7 and the display screen shown in FIG. 13, the color or shape mark to be set according to the priority, A mark of a facility with a high priority may be arranged in front, or only a mark of a facility with a high priority may be displayed.

  According to the above-described processing, when marks overlap, a mark of a genre having a high priority is arranged in front, so that a mark desired by the user can be displayed with priority. Therefore, the user can visually recognize the map and the mark easily and quickly.

(Example of display screen)
Next, an example of the display screen of the navigation device 300 according to the present embodiment will be described with reference to FIGS. FIG. 10 is an explanatory diagram illustrating an example of a display screen of the navigation device 300 according to the present embodiment.

  In FIG. 10, a map screen 1010 and an accompanying screen 1020 are displayed on the display screen 1000. On the map screen 1010, icon marks are appropriately displayed at positions where facilities exist. The facilities corresponding to each mark are as shown in FIG. 6 or FIG.

  The supplementary screen 1020 displays a current button on the map screen, a time, a scale of the map, and a selection button 1021 for accepting a change in the scale of the map screen. When “details” is selected from the selection buttons 1021 on the display screen 1000, the screen shifts to a screen shown in FIG. On the other hand, when “wide area” is selected from the selection buttons 1021, the screen shown in FIG. 11 is displayed.

  FIG. 11 is an explanatory diagram showing a display screen 1100 when the size of the mark is changed. In FIG. 11, a map screen 1110 and an accompanying screen 1120 are displayed on the display screen 1100. The map screen 1110 is smaller in scale than the map screen 1010 shown in FIG. Further, the size of the mark displayed on the map screen 1110 is smaller than the size of the mark displayed on the map screen 1010 shown in FIG.

  When “details” is selected from the selection buttons 1121 on the display screen 1100, the display screen 1000 shown in FIG. 10 is displayed. On the other hand, when “wide area” is selected from the selection buttons 1121, the screen shifts to the screen shown in FIG.

  According to such a display screen 1100, the size of the mark is changed according to the scale, that is, the mark is made small in the case of a small scale. Can be displayed. Therefore, it is possible to display a screen that is easy for the user to see.

  FIG. 12 is an explanatory diagram showing a display screen 1200 when the shape and size of the mark are changed. In FIG. 12, a map screen 1210 and an accompanying screen 1220 are displayed on the display screen 1200. The map screen 1210 is smaller in scale than the map screen 1110 shown in FIG.

  Further, the mark displayed on the map screen 1210 is smaller than the mark displayed on the map screen 1110 shown in FIG. 11, and the mark has a round shape. Further, the mark displayed on the map screen 1110 shown in FIG. 11 is displayed on the map screen 1210 without being deleted. Further, on the map screen 1210, the marks are arranged so as not to overlap. Note that the shape of the mark is not limited to a round shape, and may be other shapes as long as the display area of the mark can be reduced.

  When “details” is selected from the selection buttons 1221 on the display screen 1200, the display screen 1100 shown in FIG. 11 is displayed. On the other hand, when “wide area” is selected from the selection buttons 1221, the screen shifts to a screen shown in FIG. 14 or FIG.

  According to such a display screen 1200, since the shape of the mark is changed according to the scale, a screen on which the mark can be easily identified can be displayed. In addition, since the mark has a round shape according to the scale, the display area of the mark can be reduced, and a large area of the map screen can be secured. Thereby, even in an area where a large number of facilities are concentrated, the user can easily and quickly view the map and the mark.

  On the other hand, FIG. 13 is an explanatory diagram showing a display screen 1300 when the mark is changed to the set color and shape. On the display screen 1300, a map screen 1310 and an accompanying screen 1320 are displayed. The map screen 1310 is smaller in scale than the map screen 1110 shown in FIG. Further, the mark displayed on the map screen 1310 is smaller in size than the mark displayed on the map screen 1110 shown in FIG. 11, and the color and shape of the mark are different.

  The facilities corresponding to each mark are as shown in FIG. 6, and even if the mark has the same shape, the colors are displayed differently. Further, the mark displayed on the map screen 1110 shown in FIG. 11 is displayed on the map screen 1310 without being deleted. Further, the map screen 1310 is arranged so that the marks do not overlap.

  When “details” is selected from the selection buttons 1321 on the display screen 1300, the display screen 1100 shown in FIG. 11 is displayed. On the other hand, the screen when “wide area” is selected from among the selection buttons will be described after the description of FIGS. 14 and 15.

  According to such a display screen 1300, since the mark of the set color or shape is displayed, it is possible to display the mark of the color or shape according to the user's preference. Therefore, it is possible to display a screen that can be easily identified for the user, and the user can easily and quickly view the map and the mark.

  FIG. 14 is an explanatory diagram showing a display screen 1400 when a mark with a high priority is arranged in front. In FIG. 14, a map screen 1410 and an accompanying screen 1420 are displayed on the display screen 1400. The map screen 1410 is smaller in scale than the map screen 1210 shown in FIG. Further, the mark displayed on the map screen 1410 has the same size as the mark displayed on the map screen 1210 shown in FIG. That is, the mark indicates the minimum size.

  In addition, in the map screen 1410 of FIG. 14, there is a space for arranging the marks without overlapping, but for convenience of description, the marks are arranged in an overlapping manner. In addition, in this way, when there is a space for arranging the marks without overlapping, the marks may be displayed so as not to be overlapped by using a lead line or the like.

  The overlapping marks indicated by reference numerals 1411 and 1412 are displayed in front of the higher priority marks shown in the priority information 800 of FIG. The superposed mark shown by reference numeral 1411 is a gas station (first priority shown in FIG. 8), a parking lot (second priority shown in FIG. 8), and a convenience store (third priority shown in FIG. 8). It is displayed from the near side in order.

  Further, the overlapping mark indicated by reference numeral 1412 is displayed from the front side in the order of a shrine (priority ranking 7th shown in FIG. 8) and a temple (priority ranking 8th shown in FIG. 8). In addition, the mark arranged on the rear side is hidden by the mark arranged on the near side, but about half of the area is hidden, but is shifted to such an extent that the contents of the facility can be visually recognized. Therefore, the user can recognize the mark arranged on the rear side.

  When “details” is selected from the selection buttons 1421 on the display screen 1400, the display screen 1200 shown in FIG. 12 is displayed. On the other hand, when “wide area” is selected from the selection buttons 1421, the screen shifts to a wider area screen. In addition, when the marks overlap on a wider screen, as described above, a mark with a high priority may be arranged and displayed on the near side.

  In the display screen illustrated in FIG. 13, when “wide area” is selected from the selection buttons 1321, a mark having a high priority is arranged on the near side as in the above-described display screen 1400, and the mark The color and shape may be displayed.

  According to such a display screen 1400, when marks overlap, a mark of a genre having a high priority is arranged in front, so that a mark desired by the user can be displayed with priority. Therefore, the map and the mark can be visually recognized easily and quickly.

  FIG. 15 is an explanatory diagram showing a display screen 1500 when a mark with a low priority among the marks to be overlapped is not displayed. In FIG. 15, a map screen 1510 and an accompanying screen 1520 are displayed on the display screen 1500. The map screen 1510 is smaller in scale than the map screen 1210 shown in FIG. Further, the mark displayed on the map screen 1510 has the same size as the mark displayed on the map screen 1210 shown in FIG. That is, the mark indicates the minimum size.

  Only the mark with the highest priority is displayed because the marks indicated by reference numerals 1511 and 1512 are overlapped. When “details” is selected from the selection buttons 1521 on the display screen 1500, the display screen 1200 shown in FIG. 12 is displayed. On the other hand, when “wide area” is selected from the selection buttons 1521, the screen shifts to a wider area screen. In addition, when the marks overlap on a wider screen, only the marks with higher priority among the marks to be overlapped may be displayed as described above.

  According to such a display screen 1500, when marks are overlapped, a mark of a genre having a low priority among the set priorities is not displayed, so that only the mark desired by the user is displayed. Can do. Therefore, the user can visually recognize the map and the mark easily and quickly.

  FIG. 16 is an explanatory diagram showing a display screen 1600 when the size of the mark is changed. In FIG. 16, a map screen 1610 and an accompanying screen 1620 are displayed on the display screen 1600. The map screen 1610 has a larger scale than the map screen 1010 shown in FIG. Further, the mark displayed on the map screen 1610 is larger than the mark displayed on the map screen 1010 shown in FIG. When “wide area” of the selection button 1621 is selected on the display screen 1600, the display screen 1000 shown in FIG. 10 is displayed.

  According to such a display screen 1600, the size of the mark is changed according to the scale, that is, the mark is enlarged in the case of a large scale, so that the size is balanced with the map screen. Can be displayed. Therefore, it is possible to display a screen that is easy for the user to see. Thereby, the user can visually recognize the map and the mark easily and quickly.

  FIG. 16 shows a case where the mark is enlarged, but it is also possible to set the mark so as not to be larger than the size of the mark shown in FIG. Moreover, the size of a mark should just be a magnitude | size which does not hide a feature etc. Further, as shown in FIG. 16, when the scale is a predetermined value or more, it is of course possible to display the actual facility name or the like without displaying the mark.

  As described above, since the navigation apparatus 300 according to the present embodiment changes the display format of the mark indicating the facility according to the scale, the mark corresponding to the scale can be displayed. Therefore, it is possible to effectively use the mark and display an easy-to-see mark on the map screen. Thereby, the user can visually recognize the map and the mark easily and quickly.

  As described above, according to the display device, the display control method, the display control program, and the recording medium of the present invention, it is possible to effectively use the mark and display an easily viewable mark on the map screen.

  The display control method described in this embodiment can be realized by executing a program prepared in advance on a computer such as a personal computer or a workstation. This program is recorded on a computer-readable recording medium such as a hard disk, a flexible disk, a CD-ROM, an MO, and a DVD, and is executed by being read from the recording medium by the computer. Further, this program may be a transmission medium that can be distributed via a network such as the Internet.

It is a block diagram which shows an example of a functional structure of the display apparatus concerning embodiment. It is a flowchart which shows an example of the display control processing procedure of the display apparatus concerning embodiment. It is a block diagram which shows an example of the hardware constitutions of the navigation apparatus concerning a present Example. It is a flowchart which shows an example of the display control process at the time of changing the magnitude | size of a mark. It is a flowchart which shows an example of the display control process at the time of changing the shape and magnitude | size of a mark. It is explanatory drawing which shows an example of the setting information regarding the color and shape of a mark. It is a flowchart which shows an example of the display control process at the time of changing a mark to the color and shape to be set. It is explanatory drawing which shows an example of priority information. It is a flowchart which shows an example of the display control process at the time of arrange | positioning a high priority mark to this side. It is explanatory drawing which shows an example of the display screen of the navigation apparatus concerning a present Example. It is explanatory drawing which shows the display screen at the time of changing the magnitude | size of a mark. It is explanatory drawing which shows the display screen at the time of changing the shape and magnitude | size of a mark. It is explanatory drawing which shows the display screen at the time of changing a mark to the color and shape to set. It is explanatory drawing which shows the display screen at the time of arrange | positioning the mark with a high priority to this side. It is explanatory drawing which shows the display screen at the time of not displaying a low priority mark when a mark overlaps. It is explanatory drawing which shows the display screen at the time of changing the magnitude | size of a mark.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Display apparatus 101 Detection part 102 Control part 103 Display part 104 Mark setting part 105 Priority setting part 300 Navigation apparatus

Claims (15)

In a display device that displays a map screen,
Detection means for detecting the scale of the map being used;
Control means for changing the display format of the mark indicating the facility displayed in the display area according to the scale detected by the detection means,
Display means for displaying the map screen under the control of the control means;
A display device comprising:   2. The display device according to claim 1, wherein when the scale detected by the detection unit is equal to or less than a predetermined value, the control unit changes a display format of the mark according to the scale.   The display according to claim 1, wherein the control unit changes a display format of the mark according to the scale detected by the detection unit and the number of the displayed marks. apparatus.   The display device according to claim 1, wherein the control unit changes a size of the mark according to the scale detected by the detection unit.   The display device according to claim 1, wherein the control unit changes a color of the mark according to the scale detected by the detection unit.   The display device according to claim 1, wherein the control unit changes the shape of the mark in accordance with the scale detected by the detection unit.   The display device according to claim 6, wherein the control unit makes the shape of the mark round according to the scale detected by the detection unit. Mark setting means for setting the color or shape of the mark,
The display device according to claim 5, wherein the control unit displays a mark of the color or shape of the mark set in the mark setting unit.   The display device according to claim 1, wherein the control unit arranges the marks so as not to overlap each other. Priority setting means for setting, for each genre, a priority for displaying the mark preferentially,
The said control means arrange | positions the said mark of the genre with a high said priority among the said priority set to the said priority setting means when the said mark overlaps, The 1st characterized by the above-mentioned. The display device according to any one of 9.   The said control means is controlled so that the said mark of the genre with the said low priority is not displayed among the said priority set to the said priority setting means when the said mark overlaps. 10. The display device according to 10.   The display device according to claim 1, wherein the mark is a logo mark indicating an organization name, a trade name, and a product name. In a display control method of a display device that displays a map screen,
A detection process for detecting the scale of the map in use;
In accordance with the scale detected in the detection step, a control step for changing the display format of the mark indicating the facility,
A display step of displaying the map screen under the control of the control step;
A display control method comprising:   A display control program for causing a computer to execute the display control method according to claim 13.   15. A computer-readable recording medium on which the display control program according to claim 14 is recorded.

Images