JP2006259087A - Map display device and navigation apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To input and correct a route by touch panel operation. <P>SOLUTION: When the touch of a touch panel on a wide range map displayed on a monitor 106 is detected, a control device 105 plots a route on the wide range map based on the touched path. When a user specifies a correction target range on the route and instructs the correction of the range, the control device 105 displays a detailed map including the correction target range on the monitor 106 and corrects the route of the correction target route on the basis of the touched path of the touch panel 106 on the detailed map. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a map display device that displays a map and a navigation device equipped with the map display device.

  The following navigation apparatus is known from Patent Document 1. In this navigation device, a route can be input by tracing a screen provided with a touch panel with a finger.

JP 2000-111354 A

  However, in a conventional navigation device, when a map is displayed at a certain scale, a route can be input on the map only at the scale, and there is a problem that operability at the time of route input is poor. It was.

The invention of claim 1 is a map display device comprising a monitor equipped with a touch panel and capable of drawing a route on a map displayed on the monitor, and storing means for storing a plurality of scale map data; A drawing means for drawing a route on the map of the first scale displayed on the monitor based on the touched locus when the monitor displaying the map of the first scale is touched; The map data of the second scale ratio (> first scale ratio) including the correction target range designated in the route drawn by the means is read from the storage means, the map is displayed on the monitor, and the second scale ratio is displayed. And a route correction unit that corrects the route of the correction target range to a route drawn from the start point to the end point of the touched trajectory when the monitor displaying the map is touched. And
According to a second aspect of the present invention, in the map display device according to the first aspect, the route correcting means sets each end point of the route in the correction target range to the start point and the end point of the touched locus existing in the vicinity thereof. It is characterized by correcting the route in accordance with each of the points.
According to a third aspect of the present invention, in the map display device according to the first or second aspect, the route adding means further adds a route to the route drawn by the drawing means, and the route adding means is a starting point of the additional route. It is characterized in that it is determined which of the starting point and the ending point of the drawn route is closer, and the route is added by matching the closer point with the starting point of the additional route.
According to a fourth aspect of the present invention, in the map display device according to any one of the first to third aspects, a current position detecting means for detecting a current position of the own vehicle, and a position of the own vehicle detected by the current position detecting means. It further comprises route search means for searching for a guide route from the current position through the route to the end point of the route.
According to a fifth aspect of the present invention, in the map display device according to the fourth aspect, when the destination is designated in advance, the route search means uses the current position of the host vehicle detected by the current position detection means, It is characterized by searching for a guidance route to the destination through the route.
A navigation device according to a sixth aspect includes the map display device according to any one of the first to fifth aspects, and a route guidance unit that performs route guidance based on a drawn route or a guidance route. It is characterized by.

  According to the present invention, it is possible to correct a route by displaying a map having a larger scale ratio than when a route including a designated correction target range is drawn, that is, an enlarged map. As a result, the user can correct the details on the enlarged detailed map after drawing a rough route on a wide-area map with a small scale ratio, so that the operability at the time of route input can be improved. .

  FIG. 1 is a block diagram showing a configuration of an embodiment when the map display device in the present embodiment is applied to a navigation device. The navigation device 100 is mounted on a vehicle, and includes a vehicle speed sensor 101 that detects the vehicle speed of the host vehicle, a GPS unit 102 that receives a GPS signal from a GPS satellite and detects the current position of the host vehicle, and a traveling direction of the host vehicle. The gyro sensor 103 to be detected, the disk reading device 104 for reading the map disk 104a for storing the map data, the control device 105, the monitor 106 for displaying a map and a menu screen, and the map data from the map disk 104a are read and stored. And a memory 107. The monitor 106 includes a touch panel 106a, and the user can draw a route on the map by tracing the map displayed on the monitor 106 with a fingertip.

  The map disk 104a stores map data of a plurality of scales (scale ratios), and the stored map data includes road data that expresses roads by nodes and links. Nodes correspond to each other, and a line segment connecting each node corresponds to a link. In this embodiment, each node is given a node ID as an identification number, and each link is given a link ID as an identification number. The map data includes background data and facility data in addition to road data.

  In the present embodiment, a wide area map and a detailed map are defined as follows in the map stored in the map disk 104a. The wide area map is a map at a level at which main roads such as highways and national roads are displayed on the monitor 106, and the detailed map is a map at a level at which prefectural roads and general roads are displayed on the monitor 106. That is, the detailed map has a larger scale than the wide area map and displays the next level road. In other words, the detailed map is a map enlarged by one stage from the wide area map.

  The control device 105 reads map data of a plurality of scales from the map disk 104 a, for example, map data of the above-described wide area map and detailed map, and stores them in the memory 107. Then, as shown in FIG. 2, the scale ratio data corresponding to the wide area map is read from the memory 107 and displayed on the monitor 106, and the route input button 2a operable by touching the touch panel 106a is displayed. At the same time, the vehicle position mark 2c is drawn on the map based on the current position and the traveling direction of the vehicle detected by the GPS unit 102 and the gyro sensor 103.

  Also, a scroll area 2b is set on the monitor 106. That is, a predetermined range, for example, a range of 1 cm from the upper, lower, left, and right outer frames is set as the scroll area 2b for the entire display range of the monitor 106. When the scroll area 2b is set, the control device 105 actually displays the boundary line of the scroll area 2b indicated by the dotted line in FIG. 2 so that the user can visually recognize the scroll area 2b on the monitor 106. Alternatively, the background color of the scroll area 2b may be changed to a different background color.

  Then, when it is detected that the user touches the scroll area 2b based on the output from the touch panel 106a, the map is scrolled in the touched direction. When scrolling the map, while the user's finger is touching the scroll area 2b, the scroll is continuously performed by a predetermined amount, and the scroll is stopped when the user's finger leaves the scroll area 2b. .

  If it is determined that the user has touched (pressed) the route input button 2 a based on the output from the touch panel 106 a, the operation mode of the touch panel 106 a is switched to “route input mode” and displayed on the monitor 106. The displayed route input button 2a and the set scroll area 2b are deleted. That is, the map displayed on the monitor 106 is fixed so that it cannot be scrolled. Then, the map displayed on the monitor 106 even when the touch of the user's finger is detected while the touch is detected by using the point where the touch panel 106a is next touched by the user as a temporary start point. Draw a route on top.

  When the user touches the touch panel 106a with a finger, a matching process is performed between the traced trajectory and the road link included in the map data of the wide area map displayed on the monitor 106, and the trace traced by the user The most matching road link is extracted as a route drawn by the user. Then, the extracted road link is displayed with a bold line. By sequentially executing this process in accordance with the movement of the user's finger, the route traced by the user can be drawn with a bold line on the map. FIG. 3 is a diagram showing a specific example when the route on the map displayed on the monitor 106 by the user is traced with a finger and the route 3a from the temporary start point 3b is drawn on the map.

  After the user draws the path 3a in this way, when it is detected that the user's finger has moved away from the touch panel 106a at the point 3c, the drawing of the path is once ended with the point 3c as a temporary end point. Then, as shown in FIG. 4, the route input button 2a is displayed again on the monitor 106, and a route search button 4a described later is further displayed. Further, the scroll area 2b is reset so that the map displayed on the monitor 106 can be scrolled.

  FIG. 5 is a diagram showing a specific example when the scroll area 2b is touched by the user and the map is scrolled upward on the screen after drawing the route once. When the route input button 2a is touched by the user on the screen shown in FIG. 5, the operation mode of the touch panel 106a is switched to the “route input mode” again, and the route input displayed on the monitor 106 as shown in FIG. The button 2a, the route search button 4a, and the set scroll area 2b are deleted. When a route is further drawn by the user on this screen, the newly drawn route is added to the already drawn route 3a as follows.

  That is, the position on the map of the point at which the drawing is newly resumed by the user is detected, and the position of the resume point, that is, the position of the start point of the additional route is the temporary start point 3b of the already drawn route 3a and It is determined which of the temporary end points 3c is closer. If the position of the restart point is close to the temporary start point 3b, the restart point and the temporary start point 3b are matched, and a route extending from the temporary start point 3b is drawn according to the trajectory of the user's finger. Then, a point where the user releases the finger is newly set as a temporary start point. On the other hand, when the position of the restart point is close to the temporary end point 3c, the restart point and the temporary end point 3c are matched, and the route extending from the temporary end point 3c is drawn according to the trajectory of the user's finger. Then, the point where the user releases the finger is newly set as a temporary end point.

  It should be noted that the position of the restart point is more than a predetermined distance from both the temporary start point 3b and the temporary end point 3c of the already drawn path 3a, or the distance from the restart point to the temporary start point 3b, and the restart point. If all the distances to the temporary end point 3c are the same, the user is prompted to redraw the additional route, and the route addition process is performed again.

  For example, as shown in FIG. 6, when the user resumes drawing the route from the vicinity of the temporary end point 3c, the restart point at this time is made coincident with the temporary end point 3c, and the user then releases the finger. A route to the point 6b is added, and the point 6b at this time is newly set as a temporary end point. As a result, the route 6a is drawn by adding the old temporary end point 3c to the new temporary end point 6b to the already drawn route 3a. Then, as described above, when it is detected that the user has lifted his / her finger from the touch panel 106a at the temporary end point 6b, the drawing of the route is once ended, and the route input button 2a on the monitor 106, as shown in FIG. The route search button 4a is displayed. Further, the scroll area 2b is reset so that the map displayed on the monitor 106 can be scrolled.

  When the route search button 4a is touched by the user on the screen shown in FIG. 7, the route from the current position of the host vehicle, that is, the host vehicle position mark 2c to the temporary end point 6b, as shown in FIG. And the searched guidance route 8c is displayed on the wide area map. In addition, a guidance start button 8a and a route edit button 8b are displayed on the monitor 106. When the guidance start button 8a is touched by the user, route guidance is started according to the searched guidance route 8c.

  On the other hand, when the route edit button 8b is touched by the user, the following processing is performed. That is, on the guidance route 8c displayed on the wide area map, the user is instructed to specify the range in which the route is desired by tracing with a finger. Then, the range designated by the user in the guidance route 8c is enlarged and displayed on the detailed map as the edit target range. For example, as shown in FIG. 9A, when a range 9c between two points indicated by reference numerals 9a and 9b is designated on the wide area map, the edit target range 9c is set as shown in FIG. 9B. A detailed map of the included range is read from the memory 107 and displayed on the monitor 106. At this time, the range may be indicated by a dotted line or blinked as shown in the figure so that the range 9c designated by the user can be seen.

  On the screen shown in FIG. 9B, the route is corrected by the user. Specifically, as shown in FIG. 10A, a new path from the point 9a to the point 9b is drawn by the user. For example, when the user traces a new route having the vicinity of the point 9a as the starting point of the corrected route and the end point near the point 9b with the finger, the starting point in the vicinity of the point 9a is made to coincide with the point 9b. Matching the end point of the neighborhood with the point 9b, matching the road traced with the finger between it with the road link included in the map data as described above, and monitoring the corrected route from the point 9a to the point 9b Draw on the detailed map displayed at 106. When it is detected that the user's finger has moved away from the touch panel 106a, the original route 9c from the point 9a to the point 9b is deleted, and the point 9a is displayed on the detailed map as shown in FIG. 10B. The route within the range up to the point 9b is corrected.

  After that, when the user touches the decision button 10b, the corrected route is displayed on the wide area map as shown in FIG. 11, and the guidance start button 8a and the route edit are displayed on the monitor 106 as in FIG. Button 8b is displayed. When the guidance start button 8a is touched by the user, route guidance is started according to the searched guidance route 8c. The user can further edit the route by touching the route edit button 8b again.

  FIG. 12 is a flowchart showing the operation of the navigation device 100 in the present embodiment. The process shown in FIG. 12 is executed by the control device 105 as a program that starts when the ignition switch of the vehicle is turned on and the power of the navigation device 100 is turned on. In step S10, as described above with reference to FIG. 2, the scroll area 2b is set on the monitor 106, and the process proceeds to step S20.

  In step S20, the wide area map data read from the map disk 104a to the memory 107 is displayed on the monitor 106, and the route input button 2a and the vehicle position mark 2c are displayed. Then, it progresses to step S30 and it is judged whether the route input button 2a was touched by the user. If it is determined that the route input button 2a is not touched by the user, the process proceeds to step S120 described later. On the other hand, if it is determined that the route input button 2a has been touched by the user, the process proceeds to step S40.

  In step S40, the operation mode of the touch panel 106a is switched to "route input mode", the route input button 2a displayed on the monitor 106 and the set scroll area 2b are deleted, and the scrolling of the map is fixed. Thereafter, the process proceeds to step S50. In step S50, it is determined whether the touch panel 106a has been touched by the user and route input has started. If it is determined that route input has started, the process proceeds to step S60.

  In step S60, it is determined whether or not the input route corresponds to the addition of the route described above. That is, a route has already been drawn on the map displayed on the monitor 106, and it is determined whether or not the temporary start point 3b and the temporary end point 3c are set at both ends of the drawn route, and these are set. In this case, it is determined that the route is added. If it is determined that the route is to be added, the process proceeds to step S70, a path addition process described later with reference to FIG. 13 is executed, and the process proceeds to step S80. On the other hand, if it is determined that the route is not added, that is, the input of a new route is started, the process proceeds to step S80 as it is.

  In step S80, the point where the input is started by the user is set as the temporary start point 3b, and the matching process between the trajectory traced with the finger on the touch panel 106a and the road link included in the map data displayed on the monitor 106 The road link that most closely matches the trajectory traced by the user is extracted as a route drawn by the user and drawn with a thick line. Then, it progresses to step S90 and it is judged whether a user's finger | toe left | separated from the touch panel 106a. If it is determined that the user's finger is not away from the touch panel 106a, the process returns to step S80 to continue drawing the route.

  On the other hand, if it is determined that the user's finger has moved away from the touch panel 106a, the process proceeds to step S100. In step S100, the temporary end point 3c is set on the point where the user's finger is away from the touch panel 106a, and the process proceeds to step S110. In step S110, as described above with reference to FIG. 4, the route input button 2a and the route search button 4a are displayed on the monitor 106, and the scroll area 2b is reset so that the map can be scrolled. Then, it progresses to step S120.

  In step S120, it is determined whether or not the user touches the scroll area 2b. If it is determined by the user that the scroll area 2b is not touched, the process proceeds to step S140 described later. On the other hand, if it is determined that the user touches the scroll area 2b, the process proceeds to step S130. In step S130, the map is scrolled on the monitor 106 in the direction in which the scroll area 2b is touched by the user. Thereafter, the process proceeds to step S140.

  In step S140, it is determined whether or not the route search button 4a has been touched by the user. When it is determined that the route search button 4a is not touched by the user, the process returns to step S30 to repeat the process. On the other hand, if it is determined that the route search button 4a is touched by the user, the process proceeds to step 150. In step S150, as described above with reference to FIG. 8, the route from the vehicle position mark 2c through the route 6a to the temporary end point 6b is searched, the searched route 8c is displayed on the wide area map, and guidance starts simultaneously. The button 8a and the route edit button 8b are displayed, and the process proceeds to step S160.

  In step S160, it is determined whether or not the route edit button 8b has been touched by the user. When it is determined that the route edit button 8b is not touched by the user, the process proceeds to step S180 described later. On the other hand, if it is determined that the route edit button 8b has been touched by the user, the process proceeds to step S170. In step S170, a route editing process described later with reference to FIG. 14 is executed, and the process proceeds to step S180.

  In step S180, it is determined whether or not the guidance start button 8a has been touched by the user. When it is determined that the guidance start button 8a is not touched by the user, the process returns to step S160 and the process is repeated. On the other hand, if it is determined that the guidance start button 8a has been touched by the user, the process proceeds to step S190. In step S190, route guidance starts according to the searched guidance route 8c, and the process ends.

  FIG. 13 is a flowchart showing the flow of the route addition process in step S70 described above. In step S71, the position on the map of the point at which drawing is newly resumed by the user is detected, and the position of the resume point and the positions of the temporary start point 3b and the temporary end point 3c of the path 3a already drawn are determined. Compare.

  As a result, when it is determined that the position of the restart point is close to the temporary start point 3b, the process proceeds to step S72. In step S72, the restart point is matched with the temporary start point 3b, and the route extending from the temporary start point 3b is drawn and added according to the trajectory of the user's finger by the matching process with the road link described above, Proceed to step S73. In step S73, it is determined whether or not the user has released his / her finger from the touch panel 106a. If it is determined that the user has released his / her finger, the process proceeds to step S74 to newly set a point where the user has released his / her finger. Set as. Thereafter, the process returns to the process shown in FIG.

  On the other hand, if it is determined that the position of the restart point is close to the temporary end point 3c, the process proceeds to step S75. In step S75, the restart point and the temporary end point 3c are matched, and the route extending from the temporary end point 3c is drawn and added according to the trajectory of the user's finger by the matching process with the road link described above, Proceed to step S76. In step S76, it is determined whether or not the user has lifted his / her finger from the touch panel 106a. If it is determined that the user has released his / her finger, the process proceeds to step S77, and the point where the user has released his / her finger is newly set as a temporary end point. Set as. Thereafter, the process returns to the process shown in FIG.

  Further, when the position of the restart point is a predetermined distance or more from both the temporary start point 3b and the temporary end point 3c of the already drawn path 3a, or the distance from the restart point to the temporary start point 3b and from the restart point If all the distances to the temporary end point 3c are the same, the process proceeds to step S78. In step S78, the user is prompted to redraw the additional route, the process returns to step S71, and the user redoes the route addition process.

  FIG. 14 is a flowchart showing the flow of the route editing process in step S170 described above. In step S171, it is determined whether or not the user has traced and designated the editing target range from within the guidance route on the wide area map. If it is determined that the editing target range has been designated by the user, the process proceeds to step S172. In step S172, the detailed map including the edit target range designated by the user is read from the memory 107, and the edit target range is clearly displayed on the detailed map and displayed on the monitor 106. Thereafter, the process proceeds to step S173.

  In step S173, it is determined whether or not a correction route has been input by the user. If it is determined that the correction route has been input, the process proceeds to step S174. In step S174, each of both ends of the edit target range designated by the user is matched with each of the start point and end point of the correction path existing in the vicinity thereof, and the input correction path is included in the map data. Matches with road links and draws on detailed map. Thereafter, the process proceeds to step S175. In step S175, it is determined whether or not the user's finger is separated from the touch panel 106a. If it is determined that the user's finger is separated, the process proceeds to step S176.

  In step S176, the route within the edit target range is corrected with the route input by the user, and the process proceeds to step S177. In step S177, it is determined whether or not the determination button 10b has been touched by the user. If it is determined that the decision button 10b has been touched by the user, the process proceeds to step S178, where the corrected route is displayed on the wide area map as described above with reference to FIG. 11, and the guidance start button 8a and the route edit button 8b is displayed and the process returns to the process shown in FIG.

According to the present embodiment described above, the following operational effects can be obtained.
(1) When the route input button 2a is touched by the user, the scroll area 2b set on the monitor 106 is deleted, and the scroll of the map is fixed. This prevents the map from being scrolled against the user's intention during route input.
(2) When the touch panel 106a is traced with a finger by the user, a matching process between the traced trajectory and the road link included in the map data displayed on the monitor 106 is performed, and the road link that most closely matches the trajectory Is extracted as a drawn route, and the extracted road link is displayed with a bold line. As a result, the route traced by the user can be clearly indicated by a bold line on the map, and the user can clearly recognize the drawn route.

(3) When the route is added by the user, it is determined whether the position of the restart point is closer to the temporary start point 3b or the temporary end point 3c of the route 3a that has already been drawn. The additional path is drawn by matching the point with the restart point. As a result, even when the route addition by the user is started from a position deviated from the end point of the already drawn route, the deviation is treated as an error, and the drawn route and the added route are connected to form one route. It can be.
(4) When it is determined that the route search button 4a has been touched by the user, the route that has passed the route 6a from the vehicle position mark 2c, searched for the route to the temporary end point 6b, and searched on the wide area map 8c is displayed. As a result, a route from the current position of the host vehicle can be searched and displayed so as to always pass the route designated by the user.

(5) When a route correction is instructed, a detailed map having a larger scale ratio than the wide area map including the edit target range designated by the user is read from the memory 107 and the edit target range is displayed on the detailed map. I tried to do it. As a result, the user can correct details on a more detailed (enlarged) detailed map after drawing a rough route on the wide area map, thereby improving the operability of route input. it can.
(6) When a correction route is input by the user, each of the two ends of the edit target range designated by the user is matched with the start point and the end point of the correction route existing in the vicinity, and the detailed route Was drawn on the detailed map. As a result, even if the start point and end point of the correction path input by the user deviate from both ends of the editing target range, the shift is treated as an error, and the path of the editing target range is changed to the input correction path. It can be corrected.

-Modification-
In addition, the navigation apparatus of embodiment mentioned above can also be deform | transformed as follows.
(1) In the above-described embodiment, the wide area map is defined as a map at a level where main roads such as highways and national roads are displayed on the monitor 106, and the detailed map is a prefectural road or general road on the monitor 106. The detailed map is defined as a map of a scale on which a road one level below the wide area map is displayed as a map of a level on which roads are displayed. However, the present invention is not limited to this, and it is sufficient that the detailed map has a larger scale ratio than the wide area map, that is, the detailed map is a map obtained by enlarging the wide area map. Then, the scale ratio of the map used as the wide area map and the scale ratio of the map used as the detailed map may be set in advance, and the wide area map and the detailed map may be switched and displayed based on the setting contents.

(2) In the above-described embodiment, when it is determined that the route search button 4a is touched by the user, the route passing from the vehicle position mark 2c to the temporary end point 6b through the route 6a is searched. explained. However, the present invention is not limited to this. For example, when a destination is set in advance by the user, the vehicle passes the route 6a from the vehicle position mark 2c and further passes through the temporary end point 6b to the destination. You may make it search.

(3) In the above-described embodiment, the route set by the user, the additional route, and the corrected route have been described with reference to bold lines in order to distinguish them from other roads. However, the present invention is not limited to this. It may be displayed in a color different from other roads other than the thick line, or may be clearly indicated by, for example, a dotted line or a blinking line that can be distinguished from other roads.

(4) In the above-described embodiment, the example has been described in which the user designates the editing target range by tracing the guidance route 8c displayed on the wide area map with a finger. However, the present invention is not limited to this, and by designating both end points of the edit target range on the guide route 8c displayed on the wide area map, the section between the end points may be specified as the edit target range. Good.

(5) In the above-described embodiment, the case where the map display device is applied to a navigation device has been described. However, the present invention is not limited to this. For example, the present invention is applied to information devices equipped with other touch panels such as personal computers and mobile terminals. Also good.

  Note that the present invention is not limited to the configurations in the above-described embodiments as long as the characteristic functions of the present invention are not impaired.

  The correspondence between the constituent elements of the claims and the embodiment will be described. The GPS unit 102 corresponds to current position detection means, and the memory 107 corresponds to storage means. The control device 105 corresponds to a drawing unit, a route correction unit, a route addition unit, a route search unit, and a route guidance unit. The above description is merely an example, and when interpreting the invention, there is no limitation or restriction on the correspondence between the items described in the above embodiment and the items described in the claims.

It is a block diagram which shows the structure of one Embodiment of the navigation apparatus in this Embodiment. It is a 1st figure which shows the screen at the time of route input. It is a 2nd figure which shows the screen at the time of route input. It is a 3rd figure which shows the screen at the time of path | route input. It is a figure which shows the screen after scrolling a map. It is a 1st figure which shows the screen at the time of route addition. It is a 2nd figure which shows the screen at the time of route addition. It is a figure which shows the screen after route search. It is a 1st figure which shows the screen at the time of path | route correction. It is a 2nd figure which shows the screen at the time of path | route correction. It is a figure which shows the screen after path | route correction. It is a flowchart figure which shows operation | movement of the navigation apparatus 100 in this Embodiment. It is a flowchart figure which shows the flow of a route addition process. It is a flowchart figure which shows the flow of a route edit process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Navigation apparatus 101 Vehicle speed sensor 102 GPS unit 103 Gyro sensor 104 Disk reader 104a Map disk 104a
105 Control Device 106 Monitor 106a Touch Panel 107 Memory

Claims (6)

A map display device having a monitor equipped with a touch panel and capable of drawing a route on a map displayed on the monitor,
Storage means for storing map data at a plurality of scales;
A drawing means for drawing a route on the map of the first scale displayed on the monitor based on the touched locus when the monitor displaying the map of the first scale is touched; ,
The map data of the second scale ratio (> first scale ratio) including the correction target range designated in the path drawn by the drawing means is read from the storage means and the map is displayed on the monitor, A path correction that corrects the path of the correction target range to a path drawn from the start point to the end point of the touched trajectory when the monitor displaying the map of the second scale ratio is touched. And a map display device. The map display device according to claim 1,
The path correcting means corrects the path by matching each end point of the path of the correction target range with each of a start point and an end point of the touched locus existing in the vicinity thereof. A map display device. The map display device according to claim 1 or 2,
A route adding means for adding a route to the route drawn by the drawing means;
The route adding means determines whether the position of the start point of the additional route is closer to the start point or the end point of the drawn route, and matches the closer point with the start point of the additional route. A map display device characterized by adding a route. In the map display device according to any one of claims 1 to 3,
Current position detection means for detecting the current position of the host vehicle;
A map display device, further comprising route search means for searching for a guidance route that passes through the route from the current position of the host vehicle detected by the current position detection means to the end point of the route. The map display device according to claim 4,
The route search means searches for a guidance route to the destination through the route from the current position of the host vehicle detected by the current position detection means when a destination is designated in advance. A map display device characterized by that. The map display device according to any one of claims 1 to 5,
A navigation apparatus comprising: a route guidance unit that performs route guidance based on the drawn route or the guidance route.

Images