CN103514169B - Interest point search method and device, mobile terminal - Google Patents
Interest point search method and device, mobile terminal Download PDFInfo
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- CN103514169B CN103514169B CN201210204300.2A CN201210204300A CN103514169B CN 103514169 B CN103514169 B CN 103514169B CN 201210204300 A CN201210204300 A CN 201210204300A CN 103514169 B CN103514169 B CN 103514169B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/29—Geographical information databases
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/95—Retrieval from the web
- G06F16/953—Querying, e.g. by the use of web search engines
- G06F16/9537—Spatial or temporal dependent retrieval, e.g. spatiotemporal queries
Abstract
The invention provides a kind of interest point search method and device, mobile terminal.Methods described includes：Receive the event of initiation gesture point of interest search；On the map layer that mobile terminal screen is shown, draw region of search and figure layer be set, the region of search set figure layer comprising one can show map figure layer region；Obtain it is described can show map figure layer the point of interest search scope confined on the map layer of region；In the range of the point of interest search, search user point of interest interested.Technical scheme provided in an embodiment of the present invention can make user complete point of interest search range set by gesture, so as to simplify existing point of interest search flow, improve flexibility and the convenience of point of interest search.
Description
Technical field
The present invention relates to data searching technology field, more particularly to a kind of interest point search method and device, mobile terminal.
Background technology
At present, increasing people can be in mobile terminal（Such as smart mobile phone）Upper installation electronic map software or navigation
Software, point of interest is completed by these softwares（POI, Point Of Interest）Search, Public Transport Transfer, driving route planning
Deng.
For POI search, user can search for " some position by electronic map software or navigation software（Reference bit
Put）" periphery user certain class POI interested.Wherein, described " reference position " can be user by electronic map software or
Position or the customer location of mobile terminal location that the point searching searching functions that navigation software is provided go out, either
The screen centre position of the current show map of mobile terminal screen.User as shown in Figure 1 first passes through point searching searching functions " north
Jingdone district Cheng Tianle dining rooms ", afterwards user by clicking on shown in figure " near " icon, then can carry out dining room periphery user sense emerging
Interesting POI search.
Existing point of interest search technical scheme is studied and practice process in, inventor is had found when " the ginseng
Examine position " be user by point searching function setting when, user needs first to input the information of " reference position ", such as reference bit
The title put, is then somebody's turn to do " reference position ", finally, to the information of " reference position " nearby by point searching searching functions again
Scan for.And it is more and more using the mobile terminal of Touch Screen at present, it can just be completed to these by simple gesture
The control of mobile terminal（Such as slide unblock）, existing point of interest search technical scheme fails to utilize mobile terminal this new spy
Property, therefore, existing point of interest search technical scheme flow for this kind of mobile terminal user is excessively complicated, and operation is inadequate
It is flexibly and convenient.
The content of the invention
The technical problem to be solved of the embodiment of the present invention is to provide a kind of interest point search method and device, mobile terminal,
The technical scheme can make user by the setting of gesture completion point of interest search scope, so as to simplify point of interest search stream
Journey, improves flexibility and the convenience of point of interest search.
In order to solve the above technical problems, the purpose of the present invention is achieved through the following technical solutions：
The embodiments of the invention provide a kind of interest point search method, methods described includes：
Receive the event of initiation gesture point of interest search；
On the map layer that mobile terminal screen is shown, draw region of search and figure layer is set, the region of search is set
Figure layer comprising one can show map figure layer region；
Obtain it is described can show map figure layer the point of interest search scope confined on the map layer of region；
In the range of the point of interest search, search user point of interest interested.
Further, the embodiments of the invention provide a kind of point of interest search device, described device includes：
Event receiving unit, for receiving the event of initiation gesture point of interest search, and triggers region of search setting figure layer
Drawing unit；
Region of search figure layer drawing unit, for the map layer shown in mobile terminal screen, draws region of search
Figure layer is set, the region of search set figure layer comprising one can show map figure layer region；
Point of interest search scope acquiring unit, for obtain it is described can show map figure layer region in the map layer
On the point of interest search scope confined；
Point of interest search unit, for the point of interest search scope obtained in the point of interest search scope acquiring unit
It is interior, search user point of interest interested.
Further, the embodiment of the present invention additionally provides a kind of mobile terminal, comprising provided in an embodiment of the present invention any one
Plant point of interest search device.
Above-mentioned technical proposal has the advantages that：
The invention provides a kind of point of interest search technical scheme, the map that the program is shown in mobile terminal screen first
In figure layer, draw region of search and figure layer be set, the region of search set figure layer include one can show map figure layer region, its
It is secondary, user can be dragged by gesture, zoom in or out it is described can show map figure layer region, when user shows described
The region of pictorial map figure layer drags to it and is desired with behind the region of point of interest search, and the technical scheme that the present invention is provided will be obtained
It is described can show map figure layer the scope confined on the map layer that the mobile terminal screen is shown of region, the scope is
It is the scope that user is desired with point of interest search.Due to using technical scheme provided in an embodiment of the present invention, user passes through hand
Gesture can drag, zoom in or out it is described can show map figure layer region, point of interest search scope is set so as to realize
It is fixed, point of interest search flow is simplified, flexibility and the convenience of point of interest search is improved.
Brief description of the drawings
The point of interest search functional schematic that Fig. 1 provides for prior art；
Fig. 2 is interest point search method flow chart provided in an embodiment of the present invention；
One of the electronic map software interface sectional drawings of Fig. 3-1 to provide technical scheme using the embodiment of the present invention；
One of the electronic map software interface sectional drawings of Fig. 3-2 to provide technical scheme using the embodiment of the present invention；
Fig. 4 is the method flow diagram provided in an embodiment of the present invention for obtaining point of interest search scope；
Fig. 5-1 is that dragging region provided in an embodiment of the present invention exceeds mobile terminal screen left margin schematic diagram；
Fig. 5-2 is that dragging region provided in an embodiment of the present invention exceeds mobile terminal screen coboundary schematic diagram；
Fig. 6-1 is the first method flow chart that drafting region of search provided in an embodiment of the present invention sets figure layer；
Fig. 6-2 is the second method flow chart that drafting region of search provided in an embodiment of the present invention sets figure layer；
Fig. 7 is point of interest search device composition schematic diagram provided in an embodiment of the present invention.
Embodiment
For the purpose, technical scheme and advantage of the embodiment of the present invention is more clearly understood, referring to the drawings to this hair
The technical scheme that bright embodiment is provided is described in detail.
The embodiments of the invention provide a kind of interest point search method, the point of interest search function of being realized using this method is reached
User is allowed to set point of interest search scope by gesture, and then POI interested in user in the range of the point of interest search enters
Row search.This method can be used for electronic map software, it can also be used to navigation software.Above-mentioned electronic map software or navigation software
It can install on mobile terminals, and the screen of the mobile terminal is Touch Screen.Such as mobile phone, tablet personal computer, portable navigation
Instrument, automatic navigator etc..
To be illustrated more clearly that technical scheme provided in an embodiment of the present invention, below with using offer skill of the embodiment of the present invention
The present invention is described in detail exemplified by the electronic map software of art scheme, this citing is not construed as providing technical side to the present invention
Case can application product type limitation.
Fig. 2 is referred to, is interest point search method schematic flow sheet provided in an embodiment of the present invention, this method includes as follows
Step：
Step 201：Receive the event of initiation gesture point of interest search；
Fig. 3-1 is to provide the electronic map software interface that method realizes " gesture point of interest search " using the embodiment of the present invention
There is the icon 301 of an initiation gesture point of interest search on one of sectional drawing, the electronic map software interface, user opens and is arranged on
After the electronic map software of mobile terminal, icon 301 is clicked on finger, electronic map software daemons will receive startup hand
The event of gesture point of interest search simultaneously responds the event, i.e., electronic map software daemons start initiation gesture point of interest search stream
Journey.
Step 202：On the map layer that mobile terminal screen is shown, draw region of search and figure layer, the search are set
Region set figure layer include one can show map figure layer region（Border circular areas 302 as shown in figure 3-2）, user can pass through gesture
To this can the region of show map figure layer pulled, zoomed in or out；
As shown in figure 3-1, user is opened after the electronic map software of mobile terminal, and electronic map software is by moving
The positioning function that dynamic terminal is provided is positioned to user's present position, to obtain user's present position, then, root
According to the scaling of electronic map, electronic map is shown centered on user's present position on mobile terminal screen.When
So, show map also can be the electronic map after user is dragged by gesture, the center of the electronic map on mobile terminal screen
It may no longer be user's present position.Therefore, after user opens electronic map software, initiation gesture point of interest search
Before function, existing map layer is shown on mobile terminal screen, and the initiation gesture point of interest search work(of icon 301 is clicked in user
After energy, electronic map software daemons will be drawn region of search again on the map layer that mobile terminal screen is currently shown and be set
Put figure layer.
When user by border circular areas 302 drags to the region that it is desired with point of interest search as shown in figure 3-2 after, user
By clicking on the check mark icon 303 of the confirmation gesture point of interest search on electronic map software interface, to point of interest search scope
Confirmed, now, electronic map software daemons confirm the event of gesture point of interest search by receiving（Step 203）；
Step 204：Receive the point of interest search classification information of user's selection；
It should be noted that because existing point of interest search architecture is to carry out point of interest by point of interest category to search
Rope, therefore, method provided in an embodiment of the present invention need user first to confirm to gesture point of interest search scope, then also need
User is wanted to select point of interest category, such as, hotel, bank, market etc..In the situation using existing point of interest search architecture
Under, method provided in an embodiment of the present invention needs to include step 203 and step 204.But the two steps are not to realize this hair
The necessary step of improving eyesight, will when realizing the confirmation to point of interest search scope using other technologies means in practical application
Step 203 need not be included again.Such as, by judging whether residence time surpasses border circular areas 302 on a certain position on screen
Preset time value is crossed, if it is, thinking that user confirms the gesture point of interest search scope.When in practical application, if do not adopted
Point of interest search is carried out with existing point of interest search architecture, and is such as entered using other modes according to user's types of facial makeup in Beijing operas information
Row point of interest search, then the embodiment of the present invention, which provides method, will no longer include step 204.Therefore, step 203 and step 204 are non-
Realize the technical characteristic that the object of the invention must include.
Step 205：Obtain it is described can show map figure layer the point of interest search confined on the map layer of region
Scope；
Step 206：In the range of the point of interest search, user's point of interest interested.
In embodiments of the present invention, can the region confined on the electronic map of region of show map figure layer be then point of interest
Hunting zone, as shown in figure 3-2 can show map figure layer region be border circular areas 302, then that confines on the electronic map is emerging
Interesting point search scope is also circular.Certainly can the region of show map figure layer can also be rectangular area, or other regular shapes
The region of shape or irregular shape, has no effect on the realization of the embodiment of the present invention.
When can show map figure layer region for it is circular when, step 205 provided in an embodiment of the present invention can use Fig. 4 institutes
Show that embodiment is realized：
Step 2051：Obtain it is described can show map figure layer border circular areas central point screen pixels coordinate and circle
The screen pixels radius in region；
Step 2052：Scaled according to the screen pixels coordinate of the central point of mobile terminal screen show map figure layer and map
Rank, is latitude and longitude coordinates, latitude and longitude coordinates correspondence position by the screen pixels Coordinate Conversion of the central point of the border circular areas
The central point of circular point of interest search scope is set to, and the screen pixels radius is converted into map distance, the map distance
For the radius of circular point of interest search scope.
In actual applications, point of interest search scope is obtained according to mode shown in Fig. 4, then step 206 can be using such as
Under type is realized：
In the latitude and longitude coordinates got using step 2052 as the center of circle, the circular point of interest by radius of the map distance
In hunting zone, search user point of interest interested.
Above is interest point search method provided in an embodiment of the present invention, compared with prior art offer of the embodiment of the present invention
Method simplify point of interest search flow, improve flexibility and the convenience of point of interest search.
Further, in actual applications, because mobile terminal screen size is limited, what mobile terminal screen was shown is only electricity
A part for sub- map, therefore, user may by it is described can the region of show map figure layer drag out mobile terminal screen and show
Demonstration is enclosed（As shown in Figure 5）.When occur user by can the region of show map figure layer pull out the situation of screen display scope when,
Illustrate that user is desired with the electronic map that the body of a map or chart of point of interest search has currently been shown beyond mobile terminal screen
Scope, to meet the point of interest search demand of user, method provided in an embodiment of the present invention can further include following step
Suddenly：
Judge it is described can the region of show map figure layer whether dragged to and show close to or over mobile terminal screen by user
The position of pictorial map layer bounds, if it is, to the direction moving map figure layer opposite with user's drawing direction.Therefore, adopt
Use technical scheme provided in an embodiment of the present invention, user can arbitrarily drag can show map figure layer region into electronic map
Any one is desired with the scope of point of interest search, rather than is only limitted to the electronic map model that mobile terminal screen is shown
Enclose.
As shown in fig. 5-1, user to dragging on the left of mobile terminal screen can show map figure layer border circular areas process
In, the region is beyond the left margin of screen display map layer, and now, electronic map will be moved to the right.Such as, it can show
The border circular areas of map layer is moved to the left beyond 5 pixel distances of screen, then electronic map moves right 5 pixel distances；
Vice versa.As shown in Fig. 5-2, user to dragging above mobile terminal screen can show map figure layer border circular areas process
In, the region is beyond the coboundary of screen display map layer, and now, electronic map will be moved downwards；Vice versa.
In actual applications, when it is described can the region of show map figure layer be circle when, judge it is described can show map figure
The region of layer whether the position dragged to by user close to or over mobile terminal screen show map layer bounds can be using such as
Under type：
Obtain it is described can show map figure layer border circular areas central point pixel coordinate and pixel radius；
Obtain the length and width of the mobile terminal screen；
Using the upper left corner of the mobile terminal screen as the origin of coordinates, calculate it is described can show map figure layer border circular areas
Border to four sides of mobile terminal screen distance, if apart from less than or equal to default threshold value, judgement obtain it is described can
The region of show map figure layer has been dragged to by user and approached or beyond the border of mobile terminal screen show map figure layer
Position.
Further, the embodiment that region of search sets figure layer is drawn the embodiments of the invention provide two kinds, please join
See Fig. 6-1 and Fig. 6-2.
The first, as in Figure 6-1, provided in an embodiment of the present invention " on the map layer that mobile terminal screen is shown,
Draw region of search figure layer be set, the region of search set figure layer include one can show map figure layer pull region " tool
Body includes：
Step 2021：The sectional drawing for the map layer that mobile terminal screen is shown is obtained, the sectional drawing is memory bitmap；
Step 2022：Obtain visibility region parameter；
Step 2023：One region of the sectional drawing is set to by visibility region according to default visibility region parameter, and
Other regions of the sectional drawing are set to invisible area；
Step 2024：The sectional drawing that step 2023 is obtained sets figure layer to include in the mobile terminal screen as region of search
On the map layer of curtain display, i.e., the sectional drawing of the map layer obtained step 2023, which is superimposed upon on map layer, to be shown, and ground
The sectional drawing of figure figure layer is located above map layer.
Wherein, the visibility region parameter of acquisition can be that program is set in advance or user's dragging can be explicitly
Behind the region of figure figure layer, according to user drag can show map figure layer region the visibility region parameter that gets of distance.It is logical
In the case of often when visibility region is circle, default visibility region parameter includes：The central coordinate of circle and radius of visibility region,
That is, with mobile terminal screen, some is put as the center of circle on sectional drawing（Such as center's point of screen）, using the radius of visibility region as radius
One circular visibility region is set, and the image that the visibility region is shown is identical with positioned at its next layer map layer, equivalent to aobvious
The situation of its next layer of map layer is shown, other regions of sectional drawing are set to non-visible region.
During using the implementation, user's dragging it is described can show map figure layer region, really electronic map software
Background program sets the distance moved in figure layer according to user gesture in region of search, reacquires visibility region parameter, and root
According to the visibility region parameter of reacquisition, visibility region is reset.
Second, as in fig. 6-2, provided in an embodiment of the present invention " on the map layer that mobile terminal screen is shown,
Draw region of search figure layer be set, the region of search set figure layer include one can show map figure layer pull region " tool
Body includes：
Step 2021 '：The preset region of search setting figure pulled is obtained, the picture is PNG pictures, the field of search
One region of domain setting figure is set to can show map figure layer（I.e. to be set to picture transparent in the region）, remaining region is set to
Can not show map figure layer（I.e. to be set to picture opaque in the region）；
Step 2022 '：Using it is described including one can show map figure layer dragging region region of search setting figure as searching
Rope region sets figure layer to be shown on the map layer that the mobile terminal screen is shown.
Second of implementation is compared with the first implementation, and difference is, during using second of implementation, user
Dragging, reduce or amplification it is described can show map figure layer region, really dragged to whole region of search setting figure
Dynamic, diminution is amplified.
Above is interest point search method provided in an embodiment of the present invention, the embodiment of the present invention additionally provides a kind of point of interest
Searcher, describes in detail below in conjunction with accompanying drawing to the device.
Fig. 7 is referred to, is point of interest search device composition schematic diagram provided in an embodiment of the present invention, the device includes：
Event receiving unit 701, for receiving the event of initiation gesture point of interest search, and triggers region of search setting figure
Layer drawing unit；
Region of search figure layer drawing unit 702, for the map layer shown in mobile terminal screen, draws the field of search
Domain sets figure layer, the region of search set figure layer comprising one can show map figure layer region；
Point of interest search scope acquiring unit 703, for obtain it is described can show map figure layer region in the map
The point of interest search scope confined in figure layer；
Point of interest search unit 704, for the point of interest search model obtained in the point of interest search scope acquiring unit
In enclosing, search user point of interest interested.
Above is point of interest search device provided in an embodiment of the present invention, on region of search provided in an embodiment of the present invention
Drawing unit 702, the embodiment of the present invention, which provides two kinds of implementations, to be included：
The first, in actual applications, the region of search drawing unit 702 is specifically included：
Map layer sectional drawing unit, the sectional drawing for obtaining the map layer that mobile terminal screen is shown；
Visibility region parameter acquiring unit, for obtaining visibility region parameter；
It can be seen that and invisible area setting unit, for the visibility region parameter according to acquisition, by one of the sectional drawing
Region be set to can show map figure layer, and other regions of the sectional drawing are set to not show map figure layer；
Sectional drawing display unit, for setting figure layer to include in the mobile terminal using the sectional drawing after setting as region of search
On the map layer of screen display.
Second, in actual applications, the region of search drawing unit 702 is specifically included：
Region of search sets figure acquiring unit, and the region of search setting figure preset for obtaining, the region of search is set
One region of figure can show map figure layer, remaining region can not show map figure layer；
Region of search sets figure display unit, for setting figure layer to show using the region of search setting figure as region of search
Show on the map layer shown in the mobile terminal screen.
Further, in actual applications, because mobile terminal screen size is limited, it is impossible to which complete electronic map is included
In whole screen, therefore, when user by it is described can the region 302 of show map figure layer drag out mobile terminal screen indication range
When, illustrate that user is desired with the electronic map model that the region of point of interest search has currently been shown beyond mobile terminal screen
Enclose, in this case, to meet user's search need, point of interest search device provided in an embodiment of the present invention is further wrapped
Include：
Over range judging unit, for judge it is described can show map figure layer region whether by user drag to close to or
Beyond the position of mobile terminal screen show map layer bounds, if it is, triggering map mobile unit；
Map mobile unit, for the direction moving map figure layer opposite with user's drawing direction.
When implementing, the over range judging unit specifically includes following subelement：
Pixel value acquiring unit, for obtain it is described can show map figure layer border circular areas central point pixel coordinate and
Pixel radius；
Screen aspect acquiring unit, the length and width for obtaining the mobile terminal screen；
Over range judgment sub-unit, for using the upper left corner of the mobile terminal screen as the origin of coordinates, calculating is described can
The border of the border circular areas of show map figure layer to four sides of mobile terminal screen distance, if apart from less than or equal to default
Threshold value, then judge to obtain it is described can show map figure layer region by user dragged to close to or beyond mobile terminal screen
The position on the border of show map figure layer.
In embodiments of the present invention, can the region confined on the electronic map of region of show map figure layer be then point of interest
Hunting zone, as shown in figure 3-2, can show map figure layer region be border circular areas 302, the border circular areas 302 is electronically
The circular scope confined on figure is exactly point of interest search scope, certainly can the region of show map figure layer can also be rectangle region
Domain, or other shapes region, have no effect on the realization of the embodiment of the present invention.
When can show map figure layer region for it is circular when, point of interest search scope provided in an embodiment of the present invention determines single
Member can realize that point of interest search scope determining unit is specifically included as follows：
Screen value acquiring unit, for obtain it is described can show map figure layer border circular areas central point screen pixels
The screen pixels radius of coordinate and the border circular areas；
Map value acquiring unit, the screen pixels coordinate for the central point according to mobile terminal screen show map figure layer
And map zoom levels, it is latitude and longitude coordinates, the longitude and latitude by the screen pixels Coordinate Conversion of the central point of the border circular areas
Coordinate correspondence position is the central point of circular point of interest search scope, and the screen pixels radius is converted into map distance,
The map distance is the radius of circular point of interest search scope.
The embodiment of the present invention additionally provides a kind of mobile terminal for including point of interest search device any one of described previously, phase
Hold inside the Pass and refer to device part above, here is omitted.
A kind of interest point search method provided by the present invention and device, mobile terminal are described in detail above,
For those of ordinary skill in the art, according to the thought of the embodiment of the present invention, in specific embodiments and applications
It will change, in summary, this specification content should not be construed as limiting the invention.
Claims (14)
1. a kind of interest point search method, it is characterised in that methods described includes：
Receive the event of initiation gesture point of interest search；
Electronic map software daemons draw region of search and set figure layer on the map layer that mobile terminal screen is shown,
The region of search set figure layer comprising one can show map figure layer region；
Obtain it is described can show map figure layer the point of interest search scope confined on the map layer of region；
In the range of the point of interest search, search user point of interest interested.
2. the method as described in claim 1, it is characterised in that on the map layer that mobile terminal screen is shown, drafting is searched
Rope region sets figure layer, the region of search set figure layer comprising one can the region of show map figure layer specifically include：
Obtain the sectional drawing for the map layer that mobile terminal screen is shown；
Obtain visibility region parameter；
According to the visibility region parameter got, a region of the sectional drawing is set to visibility region, and by the sectional drawing
Other regions be set to invisible area；
Using the sectional drawing after setting as region of search set figure layer include the map layer that shows in the mobile terminal screen it
On.
3. the method as described in claim 1, it is characterised in that on the map layer that mobile terminal screen is shown, drafting is searched
Rope region sets figure layer, the region of search set figure layer comprising one can the region of show map figure layer specifically include：
Obtain preset region of search and figure be set, the region of search set figure a region can show map figure layer, remaining
Region can not show map figure layer；
The region of search is set to figure as region of search sets figure layer to include the map shown in the mobile terminal screen
On figure layer.
4. the method as described in any one of claims 1 to 3 claim, it is characterised in that methods described further comprises：
Judge it is described can the region of show map figure layer whether dragged to by user close to or over mobile terminal screen explicitly
The position of figure layer bounds, if it is, to the direction moving map figure layer opposite with user's drawing direction.
5. the method as described in any one of claims 1 to 3 claim, it is characterised in that if described can show map figure
The region shape of layer is circle, then obtain it is described can show map figure layer the point of interest confined on the map layer of region
Hunting zone is specifically included：
Obtain it is described can show map figure layer border circular areas central point screen pixels coordinate and the screen of the border circular areas
Curtain pixel radius；
According to the screen pixels coordinate and map zoom levels of the central point of mobile terminal screen show map figure layer, by the circle
The screen pixels Coordinate Conversion of the central point in shape region is latitude and longitude coordinates, and the latitude and longitude coordinates correspondence position is circular point of interest
The central point of hunting zone, and the screen pixels radius is converted into map distance, the map distance is that circular point of interest is searched
The radius of rope scope.
6. method as claimed in claim 5, it is characterised in that in the range of the point of interest search, search user is interested
Point of interest specifically include：
Using the latitude and longitude coordinates as the center of circle, in the range of the circular point of interest search by radius of the map distance, search for
User's point of interest interested.
7. method as claimed in claim 4, it is characterised in that described in the judgement can show map figure layer region whether by
The position that user drags to close to or over mobile terminal screen show map layer bounds is specifically included：
Obtain it is described can show map figure layer border circular areas central point pixel coordinate and pixel radius；
Obtain the length and width of the mobile terminal screen；
Using the upper left corner of the mobile terminal screen as the origin of coordinates, calculate it is described can show map figure layer border circular areas side
Boundary is to the distance on four sides of mobile terminal screen, if apart from less than or equal to default threshold value, judgement obtains described to show
The region of map layer has dragged to position close or beyond the border of mobile terminal screen show map figure layer by user.
8. a kind of point of interest search device, it is characterised in that described device includes：
Event receiving unit, for receiving the event of initiation gesture point of interest search, and triggers region of search setting figure layer drafting
Unit；
Region of search figure layer drawing unit, the map layer shown for electronic map software daemons in mobile terminal screen
On, draw region of search and figure layer be set, the region of search set figure layer comprising one can show map figure layer region；
Point of interest search scope acquiring unit, for obtain it is described can show map figure layer region in the map layer upper ledge
Fixed point of interest search scope；
Point of interest search unit, in the range of the point of interest search that the point of interest search scope acquiring unit is obtained, searching
Rope user point of interest interested.
9. device as claimed in claim 8, it is characterised in that the region of search figure layer drawing unit is specifically included：
Map layer sectional drawing unit, the sectional drawing for obtaining the map layer that mobile terminal screen is shown；
Visibility region parameter acquiring unit, for obtaining visibility region parameter；
It can be seen that and invisible area setting unit, for the visibility region parameter according to acquisition, by a region of the sectional drawing
Visibility region is set to, and other regions of the sectional drawing are set to invisible area；
Sectional drawing display unit, for setting figure layer to include in the mobile terminal screen using the sectional drawing after setting as region of search
On the map layer of display.
10. device as claimed in claim 8, it is characterised in that the region of search figure layer drawing unit is specifically included：
Region of search sets figure acquiring unit, and the region of search setting figure preset for obtaining, the region of search sets figure
One region can show map figure layer, remaining region can not show map figure layer；
Region of search sets figure display unit, sets figure layer to include for the region of search to be set into figure as region of search
On the map layer that the mobile terminal screen is shown.
11. the device as described in any one of claim 8 to 10 claim, it is characterised in that described device is further wrapped
Include：
Over range judging unit, for judge it is described can show map figure layer region whether by user drag to close to or over
The position of mobile terminal screen show map layer bounds, if it is, triggering map mobile unit；
Map mobile unit, for the direction moving map figure layer opposite with user's drawing direction.
12. the device as described in any one of claim 8 to 10 claim, it is characterised in that it is described can show map figure
The region shape of layer is circle, and the point of interest search scope acquiring unit is specifically included：
Screen value acquiring unit, for obtain it is described can show map figure layer border circular areas central point screen pixels coordinate
And the screen pixels radius of the border circular areas；
Map value acquiring unit, screen pixels coordinate and ground for the central point according to mobile terminal screen show map figure layer
Figure level of zoom, is latitude and longitude coordinates, the latitude and longitude coordinates by the screen pixels Coordinate Conversion of the central point of the border circular areas
Correspondence position is the central point of circular point of interest search scope, and the screen pixels radius is converted into map distance, the ground
Map distance is the radius of circular point of interest search scope.
13. device as claimed in claim 11, it is characterised in that the over range judging unit is specifically included：
Pixel value acquiring unit, for obtain it is described can show map figure layer border circular areas central point pixel coordinate and pixel
Radius；
Screen aspect acquiring unit, the length and width for obtaining the mobile terminal screen；
Over range judgment sub-unit, for that using the upper left corner of the mobile terminal screen as the origin of coordinates, can be shown described in calculating
The border of the border circular areas of map layer to four sides of mobile terminal screen distance, if apart from less than or equal to default threshold
Value, then judge to obtain it is described can the region of show map figure layer dragged to close to or shown beyond mobile terminal screen by user
The position on the border of pictorial map figure layer.
14. a kind of mobile terminal, it is characterised in that searched comprising the point of interest described in any one of claim 8-13 claim
Rope device.
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