JP6050616B2 - MAP DISPLAY DEVICE, MAP DISPLAY METHOD, AND MAP DISPLAY PROGRAM - Google Patents

Description

  The present invention relates to a map display.

  A map display device that displays an intersection guide image together with a map image is known. In such a map display device, when a key (left key or right key) is operated by a user, an intersection guide image is displayed while changing the direction according to the operated key, and in conjunction with the change. A method of displaying the display range on a map image is known (for example, Patent Document 1).

International Publication No. 2005/005927

  The problem with the prior art is that when the intersection guide image is scrolled in the horizontal direction, the display range of the intersection guide image moves in the map image, but the intersection guide image is viewed from the viewpoint. The direction on the corresponding map image rotates like a clock hand, and it is difficult for the user to intuitively grasp the terrain of the range on the map image corresponding to the intersection guide image. For example, when the user looks at the map image in front, if the direction on the map image corresponding to the direction of viewing the intersection guide image from the viewpoint is the 6 o'clock direction, the user views the map image in the display range. I imagined an image obtained by rotating the map image by 180 ° and compared it with the intersection guide image, which was not intuitive.

  SUMMARY An advantage of some aspects of the invention is to solve the above-described problems and can be realized as the following forms or application examples.

Application Example 1: A map display device that displays a panorama map that is a part of a panoramic image of a landscape viewed from a predetermined viewpoint and a two-dimensional map including a point where the viewpoint is located, and draws the two-dimensional map Storage means for storing map information, image information of the panoramic image in which the viewpoint is associated with the point on the two-dimensional map, the two-dimensional map based on the map information, and the image information The panorama map corresponding to the direction viewed from the viewpoint in the panorama image in which the viewpoint is associated with a predetermined point on the two-dimensional map based on the above, and the panorama image from the upward direction and the viewpoint of the two-dimensional map. Display means for displaying the images so that the viewing directions match, an input means for receiving an instruction to change the viewing direction of the panoramic image from the viewpoint, and the viewpoint When the instruction to change the viewing direction of the panoramic image to a horizontal direction is received, the 2D map is centered on the point so that the viewing direction from the viewpoint after the change is the upward direction of the 2D map. A map display device comprising display changing means for rotating. According to this application example, since the direction in which the panoramic image is viewed from the viewpoint maintains the upward direction when the user looks at the two-dimensional map in front, the correspondence between the panoramic map and the two-dimensional map is intuitive. It becomes easy to understand.

Application Example 2: The map display device according to Application Example 1, wherein the display unit includes a visual field information display unit that superimposes and displays a visual field indicating a direction in which the panoramic image is viewed from the viewpoint on a two-dimensional map. Map display device. According to this application example, it is easy to understand whether the scenery viewed as a panoramic map corresponds to the place on the two-dimensional map.

Application Example 3: The map display device according to any one of Application Example 1 to Application Example 2, wherein the storage unit stores information on depression angles in the direction viewed from the viewpoint in association with the panoramic image. And when the depression angle is changed, the display changing means changes the panoramic view based on the panoramic image corresponding to the changed depression angle, and changes the scale of the two-dimensional map by fixing the display position of the point. A map display device comprising a scale changing unit. According to this application example, for example, when the panoramic map is changed to one that can be viewed from a distance, the scale of the two-dimensional map is reduced so that the range visible in the panoramic map is included in the two-dimensional map. The correspondence with the 2D map can be maintained easily.

Application Example 4: The map display device according to Application Example 2, wherein the display change unit includes a visual field information enlargement / reduction unit that enlarges or reduces the visual field when the viewing direction is changed from the viewpoint. According to this application example, the relationship between the panoramic map and the two-dimensional map can be maintained in an easy-to-understand manner.

Application Example 5: The map display device according to any one of Application Example 1 to Application Example 4; when receiving an input for designating a feature, the position of the feature is displayed in the panoramic view and the two-dimensional map. And a map display device provided with corresponding display means. According to this application example, the correspondence between the panoramic map and the two-dimensional map can be shown for the specified feature.

Application Example 6: The map display device according to any one of Application Example 1 to Application Example 5, wherein the display change unit rotates when the two-dimensional map is rotated around the point. A map display device that changes the viewing direction of the panoramic image from the viewpoint to a horizontal direction so that the upward direction of the two-dimensional map is the viewing direction from the viewpoint. According to this application example, even if input from a two-dimensional map, it is possible to change the display in conjunction with the panoramic map.

  The present invention can be implemented in various forms other than the above. For example, the present invention can be realized in the form of a map display method, a map display program, a non-temporary storage medium storing the program, and the like.

Configuration of map display system. The flowchart which shows a composite display process. An example of a two-dimensional map displayed on the touch panel. An image in which a panoramic view and a two-dimensional map are displayed in combination. Image with changed azimuth. An image that has been changed so that the depression angle of the panoramic map increases and the scale of the two-dimensional map decreases in conjunction with this. An image showing the selected feature correspondingly. An image in which the field of view displayed on the two-dimensional map is changed in conjunction with the large depression angle of the panoramic map.

Embodiment 1:
Configuration of the map display system 10 (FIG. 1):
FIG. 1 shows the configuration of the map display system 10. As shown in FIG. 1, the map display system 10 includes a smartphone 20 and a map server 50. The smartphone 20 is a multifunctional mobile phone that can be connected to the Internet. The smartphone 20 and the map server 50 can be connected to each other via the Internet INT. The smartphone 20 is wirelessly connected to the Internet INT via the base station BS. In practice, the smartphone 20 is connected to the Internet INT via a transmission / reception antenna, a radio base station, and an exchange. The base station BS shown in FIG. 1 includes these antennas, radio base stations, and exchanges.

  As shown in FIG. 1, the map server 50 includes a communication unit 52, a control unit 54, and a map database 56. The map database 56 stores map data. This map data has a data structure that can display a three-dimensional map including ground surface information and feature information. The ground surface information represents the ground surface in a three-dimensional space. The feature information includes at least shape and height information of the feature (a matter that is located on the ground and underground and can be a target of map display). The control unit 54 includes a CPU, a ROM, a RAM, a hard disk, and the like, and executes a program for transmitting map data. The control unit 54 acquires map data corresponding to the request from the smartphone 20 from the map database 56 and transmits the map data to the smartphone 20 by executing this program. For this transmission, the communication unit 52 and the Internet INT are used.

  On the other hand, the smartphone 20 includes a main control unit 22, a communication unit 32, a communication control unit 34, a touch panel 36, a display unit 38, an audio output unit 40, and a GPS receiver 42. The main control unit 22 includes a CPU 24, a RAM 26, and a ROM 28. The main control unit 22 controls other devices provided in the smartphone 20. The RAM 26 temporarily stores map data transmitted from the map database 56. The ROM 28 stores a program executed by the CPU 24. This program is for realizing composite display processing (described later with reference to FIG. 2) and the like. The communication unit 32 is a circuit for performing data communication or voice communication with the base station BS. The communication unit 32 operates to access the map server 50 via the base station BS and acquire map data. The communication control unit 34 is a circuit that performs incoming calls and calls for voice calls, conversion between voice signals and electrical signals, and the like. The smartphone 20 functions as a telephone by including the communication unit 32 and the communication control unit 34.

  The audio output unit 40 is a speaker that outputs audio. The GPS receiver 42 is a device for acquiring information indicating the current location of the smartphone 20 by receiving GPS signals transmitted from a GPS satellite and an indoor GPS transmitter. The display unit 38 displays an image on the liquid crystal screen based on the control of the main control unit 22. The touch panel 36 is compatible with multi-touch, and acquires one or more position coordinates at which a user's finger, a dedicated pen, or the like touches the liquid crystal screen and inputs it to the main control unit 22. The main control unit 22 determines a user instruction based on the input position coordinates and the change thereof, and executes a process corresponding to the determined instruction. For example, the main control unit 22 determines that a swipe on the two-dimensional map (moving in one direction while touching one point) is an instruction to move the center point of the two-dimensional map, and pinch-in (two points Decreasing the distance between the two points while being touched) is determined as an instruction to reduce the scale (zoom out).

Compound display processing (FIG. 2):
FIG. 2 is a flowchart illustrating the composite display process according to the first embodiment. The execution subject of the composite display process is the main control unit 22. The composite display process is started in response to an instruction from the user. This instruction is performed, for example, by tapping a panoramic image icon 90 (see FIG. 3) prepared in advance on the screen. Note that the composite display process may be started by other methods such as a black triangle tap indicating the current location.

  FIG. 3 shows an example of a two-dimensional map displayed on the touch panel 36, that is, a map using a two-dimensional model that expresses the shape of the feature by approximating the height rising in the vertical direction to zero for all the features. It is. As shown in FIG. 3, the panoramic image icon 90 is displayed near the lower side of the two-dimensional map. This two-dimensional map is a display mode in which the upward direction of the touch panel 36 is the upward direction of the map. Note that the upward and downward directions of the touch panel 36 are predetermined, and belong to a direction parallel to the surface of the touch panel. In FIG. 3, “up and down of the touch panel 36” and “up and down of the drawing” are drawn to coincide with each other. When the main control unit 22 displays such a two-dimensional map and starts the composite display process, the main control unit 22 displays the panorama map in a part of the display area of the touch panel 36, thereby displaying the panorama map and the two-dimensional map. Is displayed (step S61). To be precise, the “display of the map (image)” is “to be performed on the liquid crystal screen by the display unit 38 based on the control of the main control unit 22” as described above. It is written as “to do”.

  FIG. 4 shows an image compositely displayed in step S61. As shown in FIG. 4, the panoramic map display area is arranged below the current location (black triangle in the figure). The panorama map is a part of a panoramic image of a landscape viewed from a predetermined viewpoint, and the displayed two-dimensional map includes a point where the viewpoint of the panorama map is located. The main control unit 22 generates a panoramic image of a landscape viewed from a predetermined viewpoint by perspectively projecting map data including a three-dimensional model, and stores image information of the generated panoramic image on a point on the two-dimensional map in the RAM 26. And the stored two-dimensional map and panorama map are displayed so that the upward direction of the two-dimensional map and the direction of viewing the panoramic image from the viewpoint coincide with each other. In the present embodiment, by default, the point where the viewpoint of the panoramic view is located is the current location, and is set to be a panoramic image close to the landscape seen from the current location. That is, the horizontal component of the line of sight of the panoramic view is made to coincide with the upward direction of the two-dimensional map. As the viewpoint distance and the depression angle, an offset amount with respect to the current position (the vertical direction is the ground surface) is determined as a default value so that the viewpoint distance and the depression angle are close to a landscape seen from the current position. In the panoramic view, only the outline of the three-dimensional model is shown in FIG. 4, but in order to be close to the scenery seen from the current location, the photographed image of the outer wall is actually displayed. Instead of the photographed image, 3DCG based on the photographed image or a simple model generated from the three-dimensional map data may be used, or a cylindrical panorama actually photographed using a panoramic mirror or the like at the viewpoint. An image may be used. The same applies to FIGS. 5 to 8.

  Next, the main control unit 22 displays the panoramic view on the two-dimensional map (step S63). In this embodiment, the field of view of the panoramic view is shown as a fan-shaped figure (hereinafter referred to as “fan figure”) centered on the current location, as shown in FIG. The “center” referred to here is the position of “Fan of the fan” as shown in FIG. This figure does not strictly reflect the field of view of the panorama map on the two-dimensional map, but shows an approximate range that can be a guide for the user.

  Subsequently, the main control unit 22 determines the input instruction (step S65). If the input instruction is a change in azimuth (step S65, change in azimuth), the azimuth of the panoramic view is changed (step S67), and the azimuth of the two-dimensional map is changed in conjunction with this change. (Step S69).

  FIG. 5 shows an image in which the azimuth angle is changed by about 45 ° clockwise relative to the image of FIG. The image of FIG. 5 rotates the azimuth angle of the panoramic view about 45 ° clockwise with respect to the image of FIG. 4, and in conjunction with this, rotates the two-dimensional map about 45 ° counterclockwise about the current location. ing. Such an instruction input for changing the azimuth angle can be performed by either a touch on the panoramic view or a touch on the two-dimensional map. In the case of a touch on the panoramic view, the touch is performed by swiping left on the panoramic view of FIG. When this swipe operation is input, the main control unit 22 performs the above rotation by an angle corresponding to the operation amount. On the other hand, in the case of a touch on a two-dimensional map, multi-touch is used. Specifically, it is performed by rotating the two touched points counterclockwise around the virtual point. The content of this paragraph holds even if the left and right sides are switched. By adopting such an embodiment, the direction in which the panoramic image is viewed from the viewpoint maintains the upward direction when the user views the two-dimensional map in front. Becomes intuitive and easy to understand.

  When the input instruction is a change of the depression angle of the panorama map or the scale of the two-dimensional map (step S65, change of depression angle or scale), the main control unit 22 changes the depression angle and viewpoint distance of the panorama map (step S65). (S71) In conjunction with this, the scale of the two-dimensional map is changed (step S73). The depression angle of the panoramic map is changed by changing the depression angle from the viewpoint based on map data having a three-dimensional model. When a captured cylindrical panoramic image is used, a data set in which the panoramic image and depression angle information are associated with each other is prepared in advance, and a plurality of sets are associated with each captured point and stored and input. The data set is switched according to the instruction content.

  FIG. 6 shows an image that has been changed so that the depression angle of the panoramic view becomes larger than the image of FIG. 4 and the scale of the two-dimensional map becomes smaller in conjunction with this. An instruction input for such a change can be made by either a touch on the panoramic map or a touch on the two-dimensional map. In the case of a touch on the panoramic view, the touch is performed by swiping upward on the panoramic view of FIG. When the swipe operation is input, the main control unit 22 performs the above change according to the operation amount. On the other hand, in the case of a touch on a two-dimensional map, multi-touch is used. Specifically, it is performed by a swipe operation to bring two touched points close to each other. Note that if you swipe down on the panoramic map or swipe the two points touched on the 2D map away from each other, the panorama map's depression angle decreases and the scale of the 2D map increases. Is changed. By adopting such an embodiment, for example, when the panoramic map is changed to one that can be seen far away, the scale of the two-dimensional map is reduced so that the range visible in the panoramic map is included in the two-dimensional map. The correspondence between the panorama map and the two-dimensional map can be maintained in an easy-to-understand manner. In addition, when the panorama diagram is changed to a view of the vicinity, the scale of the two-dimensional map can be enlarged so that the range visible in the panorama diagram can be displayed in detail on the two-dimensional map.

  When the input instruction is a corresponding display of the selected feature (step S65, correspondence display), the main control unit 22 displays the selected feature in correspondence in the panoramic map and the two-dimensional map (step S65). S75).

  FIG. 7 shows an image in which the selected feature is displayed corresponding to the image of FIG. As shown in FIG. 7, in the present embodiment, black circles are used for correspondence display. The features indicated by black circles in the panoramic map and the two-dimensional map are the same. By adopting such an embodiment, it becomes easy to understand which place on the two-dimensional map the landscape viewed as a panoramic map corresponds to. Such an instruction input for the correspondence display can be performed by either a touch on the panoramic view or a touch on the two-dimensional map. In any case, this input is performed by long-pressing (touching for a predetermined time or longer) the display range of the feature for which correspondence display is desired. Note that the mode of the correspondence display may be another mode. For example, it is conceivable that the model blinks, the color is changed, or the target models are connected with a line. In addition, another method may be used as a method for selecting a feature to be displayed for correspondence. For example, a name of a feature may be input by using the voice input function of the smartphone 20, or a character input field prepared separately. There is a technique for inputting characters.

  When the input instruction is to delete the panorama map (step S65, delete the panorama map), the main control unit 22 deletes the panorama map (step S77) and ends the composite display process. The instruction to delete the panorama diagram is input by pinch-in on the panorama diagram.

effect:
According to this embodiment, the operation of changing the display contents in conjunction with the panoramic view and the two-dimensional map can be easily and intuitively understood. In particular, in this embodiment, since this is applied to the smartphone 20, this effect becomes remarkable. In general, when a user operates a smartphone, the user often holds the smartphone with one hand and performs an input operation on the touch panel with the other hand. In this case, both hands are blocked. For example, when changing the azimuth or scale by inputting on a two-dimensional map, multi-touch is often used as in this embodiment. On the other hand, when the above-described input for changing the azimuth angle and the depression angle is performed by an instruction on the panoramic view, it can be easily executed with one hand. This is because an input operation can be performed with one thumb of the hand holding the smartphone by arranging the panoramic view below. This difference produces the above remarkable effect.
Step S63 corresponds to the visual field information display unit, step S73 corresponds to the scale changing unit, and step S75 corresponds to software for realizing the corresponding display means.

Embodiment 2:
Next, Embodiment 2 will be described. The second embodiment is realized by the same hardware as the first embodiment. Only the processing by the main control unit 22 is different from the display and user interface as the processing. Specifically, instead of changing the scale of the two-dimensional map in step S73 of the composite display process, the field of view of the panoramic map displayed on the two-dimensional map is changed as shown in FIG. In other words, when an instruction to increase the depression angle is input to the panoramic view, the fan shape is enlarged upward, and when an instruction to reduce the depression angle is input to the panoramic view, the fan shape is reduced downward. To do. In this way, by changing the visual field of the panoramic map with respect to the vertical direction, the relationship between the panoramic map and the two-dimensional map can be maintained easily. The content described here corresponds to the visual field information expansion / contraction unit of the application example. Alternatively, swiping the upper end of the fan shape upward may increase the depression angle of the panoramic view, and swiping downward may decrease the depression angle of the panoramic view.

Other embodiments:
The display content of the two-dimensional map that is changed in conjunction with the change of the azimuth angle of the panoramic map may be a rotation of the fan figure displayed on the two-dimensional map around the current location instead of the rotation of the two-dimensional map. This content corresponds to the visual field information moving unit of the application example.
Based on the change instruction input on the two-dimensional map, the function of changing the panoramic map may be omitted.
The display of the panoramic view and the two-dimensional map may be changed as the orientation of the touch panel 36 points upward. That is, a change is made to match the orientation of the center of the panoramic view with the upward orientation of the two-dimensional map with respect to the orientation indicated by the upward direction of the touch panel 36.
As a means for inputting to the main control unit 22, a key, a mouse, or the like may be used instead of the touch panel.
In the previous embodiment, the composite display process can be executed using a visual field at an arbitrary point, but it may be executed using a visual field only at a specific point (for example, only at an intersection). In this way, the data amount of three-dimensional data can be reduced.
The device to be incorporated may not be a smartphone. For example, various types such as a tablet personal computer and a car navigation device are conceivable.

  The present invention is not limited to the above-described embodiments, examples, and modifications, and can be realized with various configurations without departing from the spirit of the present invention. For example, the technical features in the embodiments, examples, and modifications corresponding to the technical features in each form described in the summary section of the invention are to solve some or all of the above-described problems, or In order to achieve part or all of the above effects, replacement or combination can be performed as appropriate. Further, if the technical feature is not described as essential in the present specification, it can be deleted as appropriate.

DESCRIPTION OF SYMBOLS 10 ... Map display system 20 ... Smartphone 22 ... Main control part 24 ... CPU
26 ... RAM
28 ... ROM
32 ... Communication unit 34 ... Communication control unit 36 ... Touch panel 38 ... Display unit 40 ... Audio output unit 50 ... Map server 52 ... Communication unit 54 ... Control unit 56 ... Map database 90 ... Panorama image icon BS ... Base station INT ... Internet

Claims (7)

A map display device that displays a panorama map that is a part of a panoramic image of a landscape viewed from a predetermined viewpoint, and a two-dimensional map that includes a point where the viewpoint is located ,
Before Symbol 2-dimensional map, and table Shimesuru display means and the panoramic view in front Symbol panoramic image corresponding to the viewing direction from the viewpoint,
Input means for receiving an instruction to change the direction of viewing the panoramic image from the viewpoint;
When an instruction to change the viewing direction of the panoramic image from the viewpoint to a horizontal direction is received, the two-dimensional centered on the point is such that the viewing direction from the viewpoint after the change is an upward direction of the two-dimensional map. Display changing means to rotate the map and
With
When the depression angle in the viewing direction from the viewpoint is changed, the display changing means changes to the panorama map based on the panoramic image corresponding to the changed depression angle, and fixes the display position of the point to the two-dimensional map. A map display device including a scale changing unit that changes a scale . The map display device according to claim 1,
The display means includes a visual field information display unit that displays a visual field indicating a direction in which the panoramic image is viewed from the viewpoint superimposed on a two-dimensional map. The map display device according to claim 2,
The map display device, comprising: a visual field information expansion / contraction unit that expands or reduces the visual field when the depression angle viewed from the viewpoint is changed. The map display device according to any one of claims 1 to 3 ,
A map display device comprising correspondence display means for receiving the input for designating a feature in the panoramic view and the two-dimensional map, respectively. The map display device according to any one of claims 1 to 4 , wherein:
The display changing means changes a direction in which the panoramic image is viewed from the viewpoint such that when the two-dimensional map is rotated around the point, the upward direction of the rotated two-dimensional map is a direction viewed from the viewpoint. Map display device that changes horizontally. A map display method for displaying a panorama map which is a part of a panoramic image of a landscape viewed from a predetermined viewpoint, and a two-dimensional map including a point where the viewpoint is located ,
Display means, and before Symbol 2-dimensional map, and table Shimesuru step and the panoramic view in front Symbol panoramic image corresponding to the viewing direction from the viewpoint,
A step in which an input unit receives an instruction to change a direction of viewing the panoramic image from the viewpoint from a user;
When the display changing means receives an instruction to change the viewing direction of the panoramic image from the viewpoint to a horizontal direction, the display center is centered on the point so that the viewing direction from the viewpoint after the change is an upward direction of the two-dimensional map. Rotating the two-dimensional map ,
When the display change means changes the depression angle in the viewing direction from the viewpoint, the display change means changes to the panoramic view based on the panoramic image corresponding to the changed depression angle, and fixes the display position of the point to the two-dimensional map. A map display method including a step of changing a scale . A map display program for causing a computer to execute a process of displaying a panorama map which is a part of a panoramic image of a landscape viewed from a predetermined viewpoint and a two-dimensional map including a point where the viewpoint is located ,
And the two-dimensional map, and pre-Symbol Table Shimesuru processing and the panoramic view corresponding to the viewing direction from the viewpoint in the panoramic image,
A process of receiving an instruction to change the direction of viewing the panoramic image from the viewpoint from a user;
When an instruction to change the viewing direction of the panoramic image from the viewpoint to a horizontal direction is received, the two-dimensional centered on the point is such that the viewing direction from the viewpoint after the change is an upward direction of the two-dimensional map. The process of rotating the map ,
A process of changing the scale of the two-dimensional map by changing the panoramic view based on the panoramic image corresponding to the changed depression angle and fixing the display position of the point when the depression angle in the viewing direction from the viewpoint is changed. ,
A program for displaying a map to make a computer execute.

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