JP2018092075A - Map display device and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a map display device which improves visibility, and a program.SOLUTION: A map display device 1 providing and displaying map information is configured to display a marine chart, and includes a display screen 100 capable of being input with a variety of input by touching on the screen with a finger. When two points of this display screen 100 are touched with fingers F1, F2, the map display device includes a ruler display function for causing a ruler 10 to indicate a distance between the two touch points which corresponds to a reduced scale at that time. This ruler 10 includes: a line segment 11 equal to the distance between two touch points 12; a distance 13 between the two touch points 12 which are the touch points of the fingers F1, F2 and the two touch points 12; and an auxiliary line 14. The line segment 11 is displayed at a position separated by a predetermined distance from the two touch points 12 and is displayed on the display screen 100 without being shielded by fingers F1, F2, and, as a result, visibility of the map display device 1 can be improved.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a map display device that acquires terrain information and displays a map, and a program executed by a mobile terminal.

  In recent years, map display devices that acquire terrain information and display maps are limited to charts that are used when navigating ships, and chart displays that display the position and direction of travel of ships that are navigating at that time. Moreover, it is also widely used in navigation systems that are installed in automobiles and provide route guidance to destinations. Further, programs having similar functions are executed and widely used in mobile phones, smartphones, and personal computers.

  In a map printed on conventional paper, especially nautical charts, measure the distance between any two points on the map with a ruler, etc., and multiply the distance by the inverse of the scale to actually The distance was roughly calculated. Even in the map display device as described above, there are many requests that an actual distance between any two points be obtained and displayed.

  Therefore, among the map display devices as described above, for example, in a device having a touch panel, when an arbitrary two points are touched on the touch panel, a device in which the distance between the two points is automatically calculated and displayed is known. (For example, refer to Patent Document 1). In this apparatus, when any two points are touched on the touch panel, information between two points such as a distance and a direction between the two points is displayed.

WO2013 / 051051 publication

  By the way, in such a map display device, the sensor on the touch panel detects the contact of the finger and displays the information between the two points, but the finger has a certain area, and any two on the touch panel. Information between two points is displayed between the fingers when the point is touched. For this reason, it is difficult to recognize the exact contact position between the map display device and the finger, and thus the exact distance between the points to be measured cannot be measured. Also, depending on the position of the finger, it may be very difficult to see. If the angle of the finger is changed in order to see the information between the two points, the touch position also moves, so the information between the two points is also changed. was there.

  Therefore, the present invention provides a map display device and a program that improve visibility by displaying the distance between two points displayed when the user touches any two points on the display screen in a map display device. The purpose is to provide.

  In order to solve the above-mentioned problem, the invention according to claim 1 is a map display device having a display screen for acquiring terrain information and displaying a map, wherein the first contact object is provided on the display screen. And the second contact object are brought into contact with each other at a point corresponding to a position where the first contact object is in contact with the display screen and a position where the second contact object is in contact with the display screen. A ruler display function for displaying a ruler having a distance between the corresponding points on the map and a line segment provided with a scale corresponding to the distance, and the ruler includes the first contact. It is displayed at a position separated from the object and the second contact object by a predetermined distance.

  According to the present invention, when the first contact object and the second contact object are brought into contact with each other on the display screen, the map display device corresponds to a position where the first contact object is in contact with the display screen. A ruler having a distance on the map between the point to be touched and a point corresponding to the position where the second contact object is in contact with the display screen, and a line segment provided with a scale corresponding to the distance is displayed. The The distance and the ruler are displayed at a position separated from the first contact object and the second contact object by a predetermined distance.

  The invention according to claim 2 is the map display device according to claim 1, wherein the ruler display function displays the ruler on the right side of the first contact object and the second contact object. Alternatively, a switching means that can switch between displaying on the left side is provided.

  According to a third aspect of the present invention, in the map display device according to the second aspect, the first contact object is a first finger of an operator who operates the portable terminal, and the second contact object. Is a second finger of the operator different from the first finger, and the switching means causes the operator to bring the first finger and the second finger into contact with the display screen In the state, when the third finger of the operator different from the first finger and the second finger is brought into contact with the display screen, the ruler is oriented in a direction based on a position where the third finger is brought into contact. Is displayed.

  According to a fourth aspect of the present invention, in the map display device according to the third aspect, the switching means is a state in which the operator makes the first finger and the second finger contact the display screen. When the third finger is brought into contact with the display screen, the ruler is displayed at a position where the third finger is brought into contact.

  According to a fifth aspect of the present invention, in the map display device according to any one of the second to fourth aspects, the switching means includes a position where the first contact object is in contact with the second contact object. The display position of the ruler is automatically switched when a line between the contact point and the position where the contact object is in contact is inclined at a certain angle or more with respect to a predetermined reference line.

  The invention according to claim 6 is a program that is executed by a portable terminal having a display screen, acquires terrain information, and displays a map on the display screen, wherein the first contact object is placed on the display screen. And the second contact object are brought into contact with each other at a point corresponding to a position where the first contact object is in contact with the display screen and a position where the second contact object is in contact with the display screen. A ruler display function for displaying a ruler having a distance between corresponding points on the map and a line segment provided with a scale corresponding to the distance, and the distance and the ruler It is displayed at a position separated by a predetermined distance from the first contact object and the second contact object.

  According to a seventh aspect of the present invention, in the program according to the sixth aspect, the ruler display function displays the ruler on the right side of the first contact object and the second contact object, or on the left side. It is characterized by comprising a switching means capable of switching between being displayed on the screen.

  The invention according to claim 8 is the program according to claim 7, wherein the first contact object is a first finger of an operator who operates the portable terminal, and the second contact object is A second finger of the operator different from the first finger, and the switching means is in a state in which the operator makes the first finger and the second finger contact the display screen. When the operator's third finger different from the first finger and the second finger is brought into contact with the display screen, the ruler is displayed in a direction based on a position where the third finger is brought into contact. It is characterized by that.

  The invention according to claim 9 is the program according to claim 8, wherein the switching means is in a state where the operator makes the first finger and the second finger contact the display screen. When the third finger is brought into contact with the display screen, the ruler is displayed at a position where the third finger is brought into contact.

  According to a tenth aspect of the present invention, in the program according to any one of the seventh to ninth aspects, the switching means includes a position where the first contact object is in contact with the second contact object. The display position of the ruler is automatically switched when the line between the position and the position where the contact point is in contact with the predetermined reference line is inclined at a certain angle or more.

  According to invention of Claim 1, 6, when a 1st contact thing and a 2nd contact thing are made to contact on a display screen, it corresponds to the scale of the map currently displayed on the display screen. A ruler that displays a ruler having a distance and a line segment between a point corresponding to the point where the contact object is in contact with the display screen and a point corresponding to the point corresponding to the point where the second contact object is in contact with the display screen With the display function, the distance and the ruler are displayed at a predetermined distance from the first contact object and the second contact object, so that the ruler is the first contact object and the second contact object. It is displayed at a position that is easy to see without being blocked by. This makes it possible to provide a map display device and a program with improved visibility.

  According to the second and seventh aspects of the present invention, the ruler display function can switch whether the ruler is displayed on the right side or the left side of the first contact object and the second contact object. By providing the means, the ruler is displayed at a position easy to see depending on the positions of the first contact object and the second contact object.

  According to invention of Claim 3, 8, a 1st contact thing is a 1st finger | toe of the operator who operates a portable terminal, a 2nd contact thing is a 2nd finger | toe of an operator, When the operator makes the third finger contact the display screen while the operator makes the first finger and the second finger contact the display screen, the switching means is based on the position where the third finger is brought into contact. Since the ruler is displayed on the screen, the ruler is displayed at an easy-to-see position without being blocked by the first finger, the second finger, and the arm.

  According to the fourth and ninth aspects of the present invention, the switching means causes the third finger to contact the display screen while the operator is in contact with the display screen with the first finger and the second finger. Since the ruler is displayed at the position where the third finger is brought into contact, the ruler is displayed at an easy-to-see position when it is easier to see the ruler apart from the contact position of the first finger and the second finger.

  According to the fifth and tenth aspects of the present invention, the switching means is configured such that the line between the position where the first contact object is in contact with the position where the second contact object is in contact is a predetermined reference. Since the display position of the ruler is automatically switched when it is inclined at a certain angle or more with respect to the line, the ruler is automatically displayed at an easily viewable position.

It is a figure which shows the map display apparatus 1 which concerns on Embodiment 1 of this invention, and is a functional block diagram (a) which shows the function of the map display apparatus 1, and a top view (b) which shows the external appearance of the map display apparatus 1 . It is a top view which shows the state which displayed the ruler 10 on the map display apparatus 1 of FIG.1 (b). It is a top view which shows the external appearance of 1 A of map display apparatuses which concern on Embodiment 2 of this invention. It is a top view which shows the external appearance of the map display apparatus 1B which concerns on Embodiment 3 of this invention. It is a top view which shows the external appearance of 1 C of map display apparatuses which concern on Embodiment 4 of this invention. It is a figure which shows the external appearance of map display apparatus 1D which concerns on Embodiment 1 of this invention, the top view (a) which shows the state which displayed the ruler 10 in right hand mode, and the state which displayed the ruler 10 in left hand mode It is a top view (b) which shows.

  The present invention will be described below based on the illustrated embodiments.

(Embodiment 1)
The map display device 1 according to Embodiment 1 of the present invention is a device for providing and displaying map information. For example, a chart used when a ship sails, and a ship sailing at that time This is a nautical chart display device that displays the position, direction of travel, and the like. The map display device 1 includes, for example, AIS (Automatic Identification System) information, which is ship identification information, position information where other ships are currently sailing, and sensors arranged in the ship. The acquired conning information indicating the position, course, speed, and the like of the ship, Chart information that is nautical chart information, route information, weather information, and the like can be transmitted to and received from an external device (not shown). The map display device 1 may be a dedicated terminal for displaying the nautical chart as described above, or may execute an application (program) for displaying the nautical chart as described above on a mobile terminal such as a commercially available tablet terminal or smartphone. As shown in FIG. 1A, mainly, Chart information DB2, GIS information DB3, input display unit 4, communication unit 5, chart display function 6, ruler display function 7, and display mode switching function 8 and a central control unit 9 for controlling them.

  The Chart information DB 2 is a database in which nautical chart information, which is information on various facilities such as sea depth and lighthouses, is stored. The GIS information DB 3 is a database that stores land landform information that is information on landform topography and roads. The nautical chart information and land landform information stored in the Chart information DB 2 and the GIS information DB 3 are updated to the latest information by appropriately accessing a server or an external system via the communication unit 5.

  The input display unit 4 is an input / output interface that displays various charts based on the input information and displays a chart and a ruler to be described later, and includes, for example, a display screen 100 shown in FIG. The communication unit 5 is a communication interface that communicates with a server or an external system.

  The nautical chart display function 6 displays a nautical chart such as nautical chart information 101 to be described later shown in FIG. 1B based on the nautical chart information and land landform information stored in the Chart information DB 2 and the GIS information DB 3. It is a program to be displayed on. When the ruler display function 7 touches two points on the display screen 100 with a finger, the ruler display function 7 displays a ruler, which will be described later, indicating the distance between the two points corresponding to the scale information 104 displayed on the display screen 100 at that time. It is a program to let you. The display mode switching function 8 includes a chart operation mode in which the chart display function 6 is executed and the chart can be operated on the display screen 100, and a ruler display mode in which the ruler display function 7 is executed and a ruler to be described later is displayed. It is a program to switch. The central control unit 9 is a device for program-controlling the input display unit 4, the communication unit 5, the chart display function 6, the ruler display function 7, and the display mode switching function 8. For example, the central control unit 9 is operated by a CPU (Central Processing Unit). It is configured.

  The display screen 100 displays a nautical chart by the nautical chart display function 6 and allows various inputs by contacting the screen with a stick-shaped member (first contact object, second contact object) such as a finger or a touch pen. It consists of a touch panel. The display screen 100 displays, for example, nautical chart information 101, latitude / longitude information 102, azimuth information 103, and scale information 104, and includes a recording start button 105 and a ruler mode button 106.

  The chart information 101 is a chart showing the boundary line between the land and the river or the sea, a contour line indicating the water depth, the positions of a plurality of lighthouses, and the like, and is configured to be able to display the positions of other ships and the like. The latitude / longitude information 102 indicates the latitude and longitude of the current location. The azimuth information 103 indicates the upper direction of the chart displayed in the chart information 101. The scale information 104 indicates the scale of the chart displayed in the chart information 101. The record start button 105 is, for example, an operation start button for recording the display state at the time when the display position of the chart information 101 is moved to display the navigation route. The ruler mode button 106 is an operation button for switching between a chart operation mode in which the movement, enlargement, reduction, etc. of the chart information 101 are operated and a ruler display mode for displaying a ruler described later.

  In such a map display device 1, when two points on the display screen 100 are brought into contact with a finger by the ruler display function 7, the two points corresponding to the scale information 104 displayed on the display screen 100 at that time are displayed. The distance can be displayed. A ruler 10 displayed on the display screen 100 by the ruler display function 7 is shown in FIG. The ruler 10 includes, for example, a finger (first contact object, first finger) F1 and a finger (second contact object, second finger) F2 of the hand H of the operator of the map display device 1. When it is brought into contact with the display screen 100, it is displayed on the display screen 100, and has a line segment 11, a contact point 12, a distance 13, and an auxiliary line 14. 2 shows an example in which the finger F1 is the operator's right thumb and the finger F2 is the operator's right index finger. However, the finger F1 and the finger F2 are not limited to these fingers, and any finger may be used for the display screen 100. You may make it contact. In FIG. 2 and subsequent figures, the chart information 101, the latitude / longitude information 102, the azimuth information 103, the scale information 104, the recording start button 105, and the ruler mode button 106 are omitted.

  The line segment 11 is a straight line provided with a scale for displaying the distance 13 like a ruler. The contact point 12 is a contact point when the finger F1 and the finger F2 are brought into contact with the display screen 100. The distance 13 is calculated by displaying the distance between the line segments 11 corresponding to the scale of the scale information 104 shown in FIG. The auxiliary line 14 is a straight line drawn between the two contact points 12. The line segment 11 and the distance 13 indicate the line segment and distance between the two contact points 12, but when displayed between the two contact points 12, they are shielded by the finger F 1, the finger F 2, and the hand H. Therefore, it is displayed in an easy-to-read manner by moving it in the upper left direction in FIG. 2 and separating it from the two contact points 12 by a predetermined distance.

  Next, the operation of the map display device 1 will be described.

  As shown in FIG. 1, in a state in which the chart information 101, the latitude / longitude information 102, the direction information 103, the scale information 104, the recording start button 105, and the ruler mode button 106 are displayed on the display screen 100, the chart operation mode is displayed. Then, the ruler mode button 106 is pressed to switch to the ruler display mode. As shown in FIG. 2, when the operator of the map display device 1 brings the finger F <b> 1 and the finger F <b> 2 into contact with the display screen 100, the ruler display function 7 displays the ruler 10 on the display screen 100. At this time, the two contact points 12 are positions where the finger F1 and the finger F2 are brought into contact with the display screen 100, and the line segment 11 and the distance 13 are displayed at positions separated from the two contact points 12 by a predetermined distance. The Thus, the image is displayed on the display screen 100 without being blocked by the finger F1, the finger F2, and the hand H.

  In this state, the operator of the map display device 1 moves and adjusts the finger F1 and the finger F2 on the display screen 100 so that the line segment 11 matches the point where the distance is to be measured with the chart information 101. . When the distance between points where the distance is to be measured and the line segment 11 match, the distance 13 displayed at that time corresponds to the distance between the points where the distance is to be measured. In this way, the exact distance between the points to be measured is measured.

  As described above, according to the map display device 1, the ruler display function 7 for displaying the ruler 10 on the display screen 100 is provided, and the line segment 11 and the distance 13 of the ruler 10 are a predetermined distance from the two contact points 12. By being displayed at a position separated by only a distance, it is displayed at a position that is easy to see without being blocked by the finger F1, the finger F2, and the hand H. This makes it possible to provide a map display device and a program with improved visibility.

(Embodiment 2)
The map display device 1A according to the second embodiment of the present invention has a ruler display function 7 as in the first embodiment. The ruler display function 7 has a function of displaying the ruler 10A on the display screen 100. The map display apparatus 1 according to the first embodiment is different from the map display apparatus 1 according to the first embodiment in that it includes a selection button (switching means) 15 displayed on the display screen 100 shown in FIG. The selection button 15 displays the ruler 10 </ b> A displayed on the display screen 100 on the right side of the finger F <b> 1 and the finger F <b> 2 or displays it on the left side, i.e., the line segment 11 and the distance 13 of the auxiliary line 14. The button can be switched between the right side display and the left side display. When “right” of the selection button 15 is pressed, the ruler 10A is displayed on the right side of the finger F1 and the finger F2, and the selection button 15 When “Left” is pressed, the ruler 10A is displayed on the left side of the finger F1 and the finger F2. Here, the right side of the fingers F1 and F2 refers to the wrist side when the operator's hand H is the right hand, and refers to the opposite side of the wrist side when the operator's hand H is the left hand, The left side of the finger F1 and the finger F2 indicates the side opposite to the wrist side when the operator's hand H is the right hand, and indicates the wrist side when the operator's hand H is the left hand. Other configurations of the map display device 1A are the same as those of the map display device 1 according to the first embodiment.

  Similar to the map display device 1 according to the first embodiment, the map display device 1A has a display screen 100 with nautical chart information 101, latitude / longitude information 102, direction information 103, scale information 104, a recording start button 105, and a ruler mode button. In the state in which 106 is displayed, from the chart operation mode, the ruler mode button 106 is pressed to switch to the ruler display mode. As shown in FIG. 3, the operator of the map display device 1 has the finger F1 and the finger F2. Is brought into contact with the display screen 100, the ruler display function 7 displays the ruler 10 </ b> A on the display screen 100. When “right” of the selection button 15 is pressed, the ruler 10A displays the right side of the finger F1 and the finger F2, that is, the line segment 11 and the distance 13 on the right side of the auxiliary line 14, and the “left” of the selection button 15 is displayed. When pressed, the ruler 10A displays the left side of the finger F1 and the finger F2, that is, the line segment 11 and the distance 13 on the left side of the auxiliary line 14. For example, in FIG. 3, the ruler 10A is displayed on the left side of the finger F1 and the finger F2, so when the “right” of the selection button 15 is pressed, the ruler 10A is moved and displayed on the right side of the finger F1 and the finger F2. . Accordingly, when the operator's hand H is the right hand, the ruler 10A is displayed on the left side of the fingers F1 and F2 so that the ruler 10A is not shielded by the hand H, and the operator's hand H is the left hand. The ruler 10A can be displayed on the right side of the finger F1 and the finger F2. In addition, the measurement of the distance between the points which want to measure the distance after that is the same as that of the map display apparatus 1 which concerns on Embodiment 1. FIG.

  As described above, according to the map display device 1A, when the operator's hand H is the right hand, the ruler 10A is displayed on the left side of the fingers F1 and F2, and the operator's hand H is the left hand. In this case, the ruler 10A can be displayed at a position where the ruler 10A can be easily seen so that the ruler 10A is displayed on the right side of the fingers F1 and F2.

(Embodiment 3)
The map display device 1B according to the third embodiment of the present invention includes a ruler display function 7 as in the first embodiment. The ruler display function 7 has a function of displaying the ruler 10B on the display screen 100. 4 and when the finger F3 of the operator's hand H (third finger) F3 touches the display screen 100 while the finger F1 and the finger F2 are in contact with the display screen 100, as shown in FIG. Based on the contact position of the finger F3, for example, the ruler 10B is displayed on the opposite side of the contact position of the finger F3 with the finger F1 and the finger F2 as the center line, that is, the line segment 11 and the distance 13 are displayed on the auxiliary line 14. It differs from the map display device 1 according to the first embodiment in that the center line is displayed on the opposite side of the contact position of the finger F3. For example, when the operator's hand H is the right hand, the finger F1 is the thumb, and the finger F2 is the index finger, as shown in FIG. 4, it is easier to see the display on the left side of the finger F1 and the finger F2. By bringing the finger F3, which is the middle finger, into contact with the display screen 100, the ruler 10B is displayed on the opposite side of the contact position of the finger F3 with the fingers F1 and F2 as the center line.

  Similar to the map display device 1 according to the first embodiment, the map display device 1B has a display screen 100 with nautical chart information 101, latitude / longitude information 102, orientation information 103, scale information 104, a recording start button 105, and a ruler mode button. In the state in which 106 is displayed, from the chart operation mode, the ruler mode button 106 is pressed to switch to the ruler display mode. As shown in FIG. 4, the operator of the map display device 1 has the finger F1 and the finger F2. Is brought into contact with the display screen 100, the ruler display function 7 displays the ruler 10B on the display screen 100. Further, when the finger F3 is brought into contact with the display screen 100, the ruler 10B has the finger F1 and the finger F2 as the center line and is opposite to the contact position of the finger F3, that is, the line segment 11 and the distance 13 are the auxiliary line 14 as the center line. It is displayed on the opposite side of the contact position of the finger F3. For example, when the operator's hand H is the right hand, when the finger F3 located on the right side of the finger F1 and the finger F2 is brought into contact with the display screen 100 in order to prevent the ruler 10B from being shielded by the hand H, Ruler 10B is displayed on the left side of fingers F1 and F2. When the operator's hand H is the left hand, when the finger F3 located on the left side of the finger F1 and the finger F2 is brought into contact with the display screen 100, the ruler 10B is displayed on the right side of the finger F1 and the finger F2. In addition, the measurement of the distance between the points which want to measure the distance after that is the same as that of the map display apparatus 1 which concerns on Embodiment 1. FIG.

  As described above, according to the map display device 1B, when the operator's hand H is the right hand, the ruler 10B is displayed on the left side of the fingers F1 and F2 by bringing the finger F3 into contact with the display screen 100. When the operator's hand H is the left hand, the ruler 10B can be displayed on the right side of the fingers F1 and F2 by bringing the finger F3 into contact with the display screen 100, so that the ruler 10B can be easily seen. It can be displayed.

(Embodiment 4)
The map display device 1C according to the fourth embodiment of the present invention includes a ruler display function 7 as in the first embodiment, and this ruler display function 7 is provided on the opposite side (third finger) F4. Touches the display screen 100, based on the contact position of the finger F4, for example, the ruler 10C is displayed on the contact position side of the finger F4 with the finger F1 and the finger F2 as the center line, that is, the line segment 11 and the distance 13 are displayed. The map display device 1 according to the first embodiment is different from the map display device 1 according to the first embodiment in that the auxiliary line 14 is displayed as a center line on the contact position side of the finger F4. For example, when it is desired to use the finger F4 on the opposite side of the operator's hand H, the ruler 10C moves to the contact position side of the finger F4 with the finger F1 and the finger F2 as centerlines, contrary to the third embodiment. Since it is easier to see if is displayed, this is the case. The ruler 10C can be displayed at the contact position of the finger F4.

  As with the map display device 1 according to the first embodiment, the map display device 1C has a display screen 100 with nautical chart information 101, latitude / longitude information 102, orientation information 103, scale information 104, a recording start button 105, and a ruler mode button. In the state in which 106 is displayed, from the chart operation mode, the ruler mode button 106 is pressed to switch to the ruler display mode. As shown in FIG. 5, the operator of the map display device 1 has the finger F1 and the finger F2. Is brought into contact with the display screen 100, the ruler display function 7 displays the ruler 10C on the display screen 100. When the finger F4 is brought into contact with the display screen 100, the ruler 10C has the finger F1 and the finger F2 as the center lines, and the finger F4 is in the contact position side, that is, the line segment 11 and the distance 13 are the finger F4 with the auxiliary line 14 as the center line. It is displayed on the contact position side. For example, when the operator's hand H is the right hand, when the finger F4 is brought into contact with the display screen 100 on the left side of the finger F1 and the finger F2 in order to prevent the ruler 10C from being covered by the hand H, the ruler 10C Are displayed on the left side of the finger F1 and the finger F2. When the operator's hand H is the left hand, when the finger F4 is brought into contact with the display screen 100 on the right side of the finger F1 and the finger F2, the ruler 10C is displayed on the right side of the finger F1 and the finger F2. Further, the finger F4 can be brought into contact with the display screen 100 at a position separated from the finger F1 and the finger F2, and the ruler 10C can be displayed at the contact position of the finger F4. In addition, the measurement of the distance between the points which want to measure the distance after that is the same as that of the map display apparatus 1 which concerns on Embodiment 1. FIG.

  As described above, according to the map display device 1C, when the finger F4 is brought into contact with the display screen 100, the ruler 10C is displayed on the contact position side of the finger F4 with the finger F1 and the finger F2 as centerlines. Since it is also possible to display at the contact position of F4, it becomes possible to display the ruler 10C at a position where it can be easily seen.

(Embodiment 5)
The map display device 1D according to the fifth embodiment of the present invention includes a ruler display function 7 as in the first embodiment. The ruler display function 7 has a function of displaying the ruler 10D on the display screen 100. And a map display device according to Embodiment 1 in that it includes a right / left hand switching button (switching means) 15D displayed on the display screen 100 shown in FIGS. 6 (a) and 6 (b). Different from 1. Further, when the ruler 10D is inclined at a certain angle or more, the right / left display of the finger F1 and the finger F2 can be automatically switched. The right / left hand switching button 15D is a button capable of switching between a right hand mode for operating the ruler 10D displayed on the display screen 100 with the right hand and a left hand mode for operating with the left hand. FIG. 6A shows a state where the ruler 10D is displayed in the right-hand mode, and FIG. 6B shows a state where the ruler 10D is displayed in the left-hand mode. The operator's hand H, finger F1, and finger F2 are not shown.

  As with the map display device 1 according to the first embodiment, the map display device 1D has a display screen 100 with nautical chart information 101, latitude / longitude information 102, orientation information 103, scale information 104, a recording start button 105, and a ruler mode button. In the state where 106 is displayed, from the chart operation mode, the ruler mode button 106 is pressed to switch to the ruler display mode, and the operator of the map display device 1 touches the display screen 100 with the finger F1 and the finger F2. Then, the ruler display function 7 displays the ruler 10D on the display screen 100.

  At this time, for example, when the ruler 10D displayed in the right-hand mode brings the finger F1 and the finger F2 into contact with the contact point 12 of the display screen 100, the line segment 11 and the distance 13 are set as shown in FIG. It is displayed on the upper left side of the auxiliary line 14. In this state, when the finger F1 and the finger F2 are rotated counterclockwise, the ruler 10D also rotates accordingly. And when it inclines more than a fixed angle (for example, 90 degrees) with respect to the reference line BL shown to Fig.6 (a), the line segment 11 and the distance 13 move and are displayed on the right side of the auxiliary line 14. .

  Further, for example, when the ruler 10D displayed in the left-hand mode brings the finger F1 and the finger F2 into contact with the contact point 12 of the display screen 100, the line segment 11 and the distance 13 are assisted as shown in FIG. 6B. It is displayed on the upper right side of the line 14. In this state, when the finger F1 and the finger F2 are rotated in the clockwise direction, the ruler 10D is rotated accordingly. And when it inclines more than fixed angle (for example, 90 degrees) with respect to the reference line BL shown in FIG.6 (b), the line segment 11 and the distance 13 move and are displayed on the left side of the auxiliary line 14. . For example, when the operator's hand H is rotated, it is easier to see if the position where the ruler 10D is displayed is switched. In addition, the measurement of the distance between the points which want to measure the distance after that is the same as that of the map display apparatus 1 which concerns on Embodiment 1. FIG.

  As described above, according to the map display device 1D, when the finger F1 and the finger F2 are rotated, the ruler 10D is rotated accordingly, and when the tilt is more than 90 ° with respect to the reference line BL, the line segment 11 and the distance Since 13 is moved and displayed on the opposite side of the auxiliary line 14, it is possible to display the ruler 10C at a position where it can be easily seen.

  Although the embodiment of the present invention has been described above, the specific configuration is not limited to the above embodiment, and even if there is a design change or the like without departing from the gist of the present invention, Included in the invention. For example, in Embodiments 1 and 2 described above, the finger F1 and the finger F2 are brought into contact with the display screen 100, but a rod-like member such as a touch pen may be brought into contact therewith.

  In the third embodiment, the ruler 10B is displayed on the opposite side of the contact position of the finger F3 with the fingers F1 and F2 as the center lines. In the fourth embodiment, the ruler 10C is centered on the fingers F1 and F2. Although the lines are displayed on the contact position side of the finger F4, these display forms may be switchable.

1, 1A, 1B, 1C, 1D Map display device 2 Chart information DB
3 GIS information DB
4 Input display section 5 Communication section 6 Chart display function 7 Ruler display function 8 Display mode switching function 9 Central control section 10, 10A, 10B, 10C, 10D Ruler 11 Line segment 12 Contact point 13 Distance 14 Auxiliary line 15 Select button (switch) means)
15D Right / left hand switching button (switching means)
DESCRIPTION OF SYMBOLS 100 Display screen 101 Chart information 102 Latitude / longitude information 103 Direction information 104 Scale information 105 Recording start button 106 Ruler mode button BL Reference line F1 finger (1st contact object, 1st finger)
F2 finger (second contact, second finger)
F3 finger (third finger)
F4 finger (third finger)
H hand

Claims (10)

A map display device having a display screen for acquiring terrain information and displaying a map,
When the first contact object and the second contact object are brought into contact with each other on the display screen, the point corresponding to the position where the first contact object is in contact with the display screen and the second contact object A ruler display function for displaying a ruler having a distance on the map between a point corresponding to a position in contact with the display screen and a line segment provided with a scale corresponding to the distance. Prepared,
The ruler is displayed at a position separated from the first contact object and the second contact object by a predetermined distance.
A map display device characterized by that. The ruler display function includes switching means capable of switching whether the ruler is displayed on the right side or the left side of the first contact object and the second contact object.
The map display device according to claim 1. The first contact object is a first finger of an operator who operates the mobile terminal,
The second contact object is a second finger of the operator different from the first finger,
The switching means is configured so that the operator is different from the first finger and the second finger in a state in which the operator makes the first finger and the second finger contact the display screen. When a third finger is brought into contact with the display screen, the ruler is displayed in a direction based on a position where the third finger is brought into contact.
The map display device according to claim 2, wherein: When the operator makes the third finger contact the display screen in a state where the operator makes the first finger and the second finger contact the display screen, the switching means The ruler is displayed at the position where the finger is touched,
The map display device according to claim 3. The switching means is configured such that a line between a position where the first contact object is brought into contact with a position where the second contact object is brought into contact is at a certain angle with respect to a predetermined reference line. When tilted, the display position of the ruler is automatically switched.
The map display device according to any one of claims 2 to 4, wherein A program that is executed on a mobile terminal having a display screen, acquires terrain information, and displays a map on the display screen,
When the first contact object and the second contact object are brought into contact with each other on the display screen, the point corresponding to the position where the first contact object is in contact with the display screen and the second contact object A ruler display function for displaying a ruler having a distance on the map between a point corresponding to a position in contact with the display screen and a line segment provided with a scale corresponding to the distance. Prepared,
The ruler is displayed at a position separated from the first contact object and the second contact object by a predetermined distance.
A program characterized by that. The ruler display function includes switching means capable of switching whether the ruler is displayed on the right side or the left side of the first contact object and the second contact object.
The program according to claim 6. The first contact object is a first finger of an operator who operates the mobile terminal,
The second contact object is a second finger of the operator different from the first finger,
The switching means is configured so that the operator is different from the first finger and the second finger in a state in which the operator makes the first finger and the second finger contact the display screen. When a third finger is brought into contact with the display screen, the ruler is displayed in a direction based on a position where the third finger is brought into contact.
The program according to claim 7. When the operator makes the third finger contact the display screen in a state where the operator makes the first finger and the second finger contact the display screen, the switching means The ruler is displayed at the position where the finger is touched,
The program according to claim 8. The switching means is configured such that a line between a position where the first contact object is brought into contact with a position where the second contact object is brought into contact is at a certain angle with respect to a predetermined reference line. When tilted, the display position of the ruler is automatically switched.
The program according to any one of claims 7 to 9, characterized in that:

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