CN104142153A - Electronic map display method, display device and navigation terminal - Google Patents
Electronic map display method, display device and navigation terminal Download PDFInfo
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- CN104142153A CN104142153A CN201310165032.2A CN201310165032A CN104142153A CN 104142153 A CN104142153 A CN 104142153A CN 201310165032 A CN201310165032 A CN 201310165032A CN 104142153 A CN104142153 A CN 104142153A
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- electronic chart
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3667—Display of a road map
- G01C21/367—Details, e.g. road map scale, orientation, zooming, illumination, level of detail, scrolling of road map or positioning of current position marker
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention provides an electronic map display method, display device and navigation terminal, wherein the display method comprises the following steps: acquiring a recommended measuring scale of display objects in an electronic map; judging whether the recommended measuring scale of the display objects in the electronic map is larger than a current measuring scale of the electronic map; when the judgment result is yes, displaying no display objects; and when the judgment result is no, then displaying the display objects. The display device comprises a first acquisition unit; a second acquiring unit; a judging unit; and a display unit which is used for displaying the display objects when the judgment result is no. The navigation terminal includes a display device of the electronic map. According to the technical scheme of the invention, whether the display objects may be displayed can be judged by the relationship between the recommended measuring scale of the display objects in the electronic map and the current measuring scale of the electronic map, so that reasonable display of the display objects in different measuring scales can be achieved so as to avoid neglect of an important display object for the reason that the current measuring scale is too small.
Description
Technical field
The present invention relates to electronic chart field, refer to especially a kind of display packing, display device and navigation terminal of electronic chart.
Background technology
Current navigation map data is mainly vector data, paper map data different from the past, and vector data can it be realized the demonstration under different scale on screen.Navigation map data is mainly used in hand-held PDA, airborne navigator and internet map, the demonstration of data multi-scale mainly depends on various software according to the performance of device, with reference to the load contents of screen, and the engineer's scale of demonstration etc., by program, judged, to select to need the data of demonstration.Although can realize to a certain extent like this demonstration of data under different scale, well-known, the significance level of geographic element can not only judge by its size or length etc.Whether for example, in arid area, water system face is less, according to area or length computation, judge, may in arid area, just not have water system to show, but just in time contrary, and in this region, no matter water system is big or small, and importance degree is all relatively high, also just needs to show; Equally, although expressway, national highway, rural road are all road, its importance degree is not identical yet, can not be only by screen load etc., by program, judges whether to show.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of navigation data rationally display packing, display device and navigation terminal of the electronic chart of demonstration of making under different scale.
The display packing of electronic chart of the present invention, comprising:
Step S1, obtains the recommendation engineer's scale that shows object in electronic chart;
Step S2, judges and in electronic chart, shows whether the recommendation engineer's scale of object is greater than the current engineer's scale of electronic chart, generates judged result;
Step S3, judgment result is that while being when described, does not show described demonstration object; When described, when the determination result is NO, show described demonstration object.
The display packing of electronic chart of the present invention, wherein, described step S3 is specially: when described, when the determination result is NO, with described recommendation engineer's scale, show described demonstration object.
The display packing of electronic chart of the present invention, wherein, described step S1 is specially: the recommendation engineer's scale that obtains described demonstration object according to the important level that shows object in electronic chart.
The display packing of electronic chart of the present invention, wherein, the recommendation engineer's scale that obtains described demonstration object according to the important level that shows object in electronic chart comprises:
Obtain the important level of described demonstration object;
Corresponding relation according between the important level of described demonstration object and described important level and recommendation engineer's scale, obtains the recommendation engineer's scale that shows object.
The display device of electronic chart of the present invention, comprising:
The first acquiring unit, for obtaining the current engineer's scale of electronic chart;
Second acquisition unit, shows the recommendation engineer's scale of object for obtaining electronic chart;
Judging unit, for judging whether described recommendation engineer's scale is greater than the current engineer's scale of electronic chart, generates judged result;
Display unit, for when the determination result is NO, showing described demonstration object when described.
The display device of electronic chart of the present invention, wherein, described second acquisition unit comprises:
The first acquisition module, obtains the important level that shows object;
The second acquisition module, the corresponding relation according between the important level of described demonstration object and described important level and recommendation engineer's scale, obtains the recommendation engineer's scale that shows object.
The display device of electronic chart of the present invention, wherein, described the second acquisition module comprises:
Storage unit, shows the important level of object and recommends the corresponding relation between engineer's scale for storing;
Computing unit, the corresponding relation according between the important level of described demonstration object and described important level and recommendation engineer's scale, obtains the recommendation engineer's scale that shows object.
Navigation terminal of the present invention, comprises the display device of electronic chart of the present invention.
The beneficial effect of technique scheme of the present invention is as follows:
Such scheme judges and shows whether object is shown according to the relation that shows the recommendation engineer's scale of object and the current engineer's scale of electronic chart in electronic chart, with this, only solve and show according to the current engineer's scale judgement of electronic chart irrational problem that under the whether shown different scale being caused of object, data show, make electronic chart integral body seem more clearly.Technical scheme of the present invention has realized the reasonable demonstration that shows object under different scale, avoids being left in the basket because current engineer's scale is too small compared with important demonstration object.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of the display packing of electronic chart of the present invention;
Fig. 2 is the integrated stand composition of the display device of electronic chart of the present invention.
Embodiment
For making the technical problem to be solved in the present invention, technical scheme and advantage clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The display packing of electronic chart of the present invention mainly judges and shows whether object is shown according to the relation that shows the recommendation engineer's scale of object and the current engineer's scale of electronic chart in electronic chart, with this, only solve and show according to the current engineer's scale judgement of electronic chart irrational problem that under the whether shown different scale being caused of object, data show, make electronic chart integral body seem more clearly.
The present invention has realized the reasonable demonstration that shows object under different scale.
As shown in Figure 1, the display packing of electronic chart of the present invention, comprising:
Step S1, obtains the recommendation engineer's scale that shows object in electronic chart;
Step S2, judges and in electronic chart, shows whether the recommendation engineer's scale of object is greater than the current engineer's scale of electronic chart, generates judged result;
Step S3, judgment result is that while being when described, does not show described demonstration object; When described, when the determination result is NO, show described demonstration object.
The display packing of electronic chart of the present invention, wherein, described step S3 can be specially: when described when the determination result is NO, to recommend engineer's scale to show described demonstration object.
In other embodiment of the display packing of electronic chart of the present invention, when carrying out described step S3, when described, when the determination result is NO, can show described demonstration object with current engineer's scale or other multiple engineer's scales.
The display packing of electronic chart of the present invention, wherein, described step S1 is specially: the recommendation engineer's scale that obtains described demonstration object according to the important level that shows object in electronic chart.
The display packing of electronic chart of the present invention, wherein, the recommendation engineer's scale that obtains described demonstration object according to the important level that shows object in electronic chart comprises:
Obtain the important level of described demonstration object;
Corresponding relation according between the important level of described demonstration object and described important level and recommendation engineer's scale, obtains the recommendation engineer's scale that shows object.
First the display packing that realizes electronic chart of the present invention needs to determine and shows the important level of object and recommend the corresponding relation between engineer's scale, and by above-mentioned corresponding relation storage, then determine the important level that certain shows object.
The important level that shows object can be formulated out by following information:
1, map data (as introduced etc. in national order of stream figure, road traffic map, famous scenic spot);
2, on-the-spot actual conditions (as road conditions, POI popularity);
3, navigation data user's attention rate;
Make after the important level that shows object, can and recommend the corresponding relation between engineer's scale according to the important level of described demonstration object and described important level, obtain the recommendation engineer's scale that shows object.
Then according to the relation that shows the recommendation engineer's scale of object and the current engineer's scale of electronic chart in electronic chart, judge and show whether object is shown.
The recommendation engineer's scale of the demonstration object that important level is higher is conventionally less, make like this it under less current engineer's scale, also can show, if for example show the important level of object by numeral, numeral 8 represents the highest importance degree grade, numeral 1 represents minimum importance degree grade, importance degree grade is that the recommendation engineer's scale of 8 demonstration object is designed to minimum, no matter current engineer's scale size, it all need show at display terminal, and the recommendation engineer's scale of the demonstration object that importance degree grade is 1 is designed to larger, it only need to show under indivedual large scales, in the time of small scale, do not need to show.
Take the famous national 5A level scenic spot West Lake is example, due to its popularity known to widely, its important level is made as the highest numeral 8, and the corresponding recommendation engineer's scale of the demonstration object that important level is 8 is made as 1:10000, at engineer's scale in the electronic chart within the scope of 1:1000-1:100, the West Lake is shown all the time, and the lower demonstration object of important level is as the internal passageway in park, important level is made as 4, important level is that the corresponding recommendation engineer's scale of 4 demonstration object is made as 1:200, current engineer's scale (is more than or equal to 1:200 greatly, for example, in the time of 1:150), the internal passageway in park is just shown, and work as indication range, expand certain limit to, current engineer's scale is less (is less than 1:200, for example, in the time of 1:500), during as the whole city of screen display, the internal passageway in park just does not need to have shown, under this demonstration object large scale, show, during small scale, do not show.
As shown in Figure 2, the display device 10 of electronic chart of the present invention, comprising:
The first acquiring unit 21, for obtaining the current engineer's scale of electronic chart;
Second acquisition unit 22, shows the recommendation engineer's scale of object for obtaining electronic chart;
Judging unit 23, for judging whether described recommendation engineer's scale is greater than the current engineer's scale of electronic chart, generates judged result;
Display unit 24, for when the determination result is NO, showing described demonstration object when described.
The display device 10 of electronic chart of the present invention, wherein, described second acquisition unit 22 comprises:
The first acquisition module 201, obtains the important level that shows object;
The second acquisition module 202, the corresponding relation according between the important level of described demonstration object and described important level and recommendation engineer's scale, obtains the recommendation engineer's scale that shows object.
The display device 10 of electronic chart of the present invention, wherein, described the second acquisition module 202 comprises:
Storage unit 211, shows the important level of object and recommends the corresponding relation between engineer's scale for storing;
Computing unit 212, the corresponding relation according between the important level of described demonstration object and described important level and recommendation engineer's scale, obtains the recommendation engineer's scale that shows object.
The embodiment of the display device of electronic chart of the present invention, wherein, described storage unit 211 is the division on function logic, can be realized by storage substance (as hard disk).Described computing unit 212, can be by computer realization.
Navigation terminal of the present invention, comprises the display device of electronic chart of the present invention.
One of ordinary skill in the art will appreciate that, the all or part of step realizing in above-described embodiment method is to come the hardware that instruction is relevant to complete by program, described program can be stored in a computer read/write memory medium, this program is when carrying out, comprise the step as above-mentioned embodiment of the method, described storage medium, as: magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.
In each embodiment of the method for the present invention; the sequence number of described each step can not be for limiting the sequencing of each step; for those of ordinary skills, do not paying under the prerequisite of creative work, the priority of each step is changed also within protection scope of the present invention.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. a display packing for electronic chart, is characterized in that, comprising:
Step S1, obtains the recommendation engineer's scale that shows object in electronic chart;
Step S2, judges and in electronic chart, shows whether the recommendation engineer's scale of object is greater than the current engineer's scale of electronic chart, generates judged result;
Step S3, judgment result is that while being when described, does not show described demonstration object; When described, when the determination result is NO, show described demonstration object.
2. the display packing of electronic chart according to claim 1, is characterized in that, described step S3 is specially: when described, when the determination result is NO, with described recommendation engineer's scale, show described demonstration object.
3. the display packing of electronic chart according to claim 1, is characterized in that, described step S1 is specially: the recommendation engineer's scale that obtains described demonstration object according to the important level that shows object in electronic chart.
4. the display packing of electronic chart according to claim 3, is characterized in that, the recommendation engineer's scale that obtains described demonstration object according to the important level that shows object in electronic chart comprises:
Obtain the important level of described demonstration object;
Corresponding relation according between the important level of described demonstration object and described important level and recommendation engineer's scale, obtains the recommendation engineer's scale that shows object.
5. a display device for electronic chart, is characterized in that, comprising:
The first acquiring unit, for obtaining the current engineer's scale of electronic chart;
Second acquisition unit, shows the recommendation engineer's scale of object for obtaining electronic chart;
Judging unit, for judging whether described recommendation engineer's scale is greater than the current engineer's scale of electronic chart, generates judged result;
Display unit, for when the determination result is NO, showing described demonstration object when described.
6. the display device of electronic chart according to claim 5, is characterized in that, described second acquisition unit comprises:
The first acquisition module, obtains the important level that shows object;
The second acquisition module, the corresponding relation according between the important level of described demonstration object and described important level and recommendation engineer's scale, obtains the recommendation engineer's scale that shows object.
7. the display device of electronic chart according to claim 6, is characterized in that, described the second acquisition module comprises:
Storage unit, shows the important level of object and recommends the corresponding relation between engineer's scale for storing;
Computing unit, the corresponding relation according between the important level of described demonstration object and described important level and recommendation engineer's scale, obtains the recommendation engineer's scale that shows object.
8. a navigation terminal, is characterized in that, comprises the display device of the electronic chart as described in claim 5-7 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310165032.2A CN104142153A (en) | 2013-05-07 | 2013-05-07 | Electronic map display method, display device and navigation terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310165032.2A CN104142153A (en) | 2013-05-07 | 2013-05-07 | Electronic map display method, display device and navigation terminal |
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| CN104142153A true CN104142153A (en) | 2014-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310165032.2A Pending CN104142153A (en) | 2013-05-07 | 2013-05-07 | Electronic map display method, display device and navigation terminal |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104729521A (en) * | 2015-04-08 | 2015-06-24 | 广东好帮手电子科技股份有限公司 | Satellite cloud picture fused vehicle-mounted navigation terminal and implementation method thereof |
| CN105069105A (en) * | 2015-08-03 | 2015-11-18 | 广东威创视讯科技股份有限公司 | Element data display method and system |
| CN105159543A (en) * | 2015-09-25 | 2015-12-16 | 百度在线网络技术（北京）有限公司 | Method and device for providing map service |
| CN107329652A (en) * | 2017-06-22 | 2017-11-07 | 巴拉巴网络科技（北京）有限公司 | Object identity method, device, system and machinable medium |
| CN107798018A (en) * | 2016-09-06 | 2018-03-13 | 高德软件有限公司 | A kind of method to set up and device of point of interest display information |
| CN110110246A (en) * | 2019-05-13 | 2019-08-09 | 北京金和网络股份有限公司 | Shops's recommended method based on geographical information grid density |
-
2013
- 2013-05-07 CN CN201310165032.2A patent/CN104142153A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104729521A (en) * | 2015-04-08 | 2015-06-24 | 广东好帮手电子科技股份有限公司 | Satellite cloud picture fused vehicle-mounted navigation terminal and implementation method thereof |
| CN105069105A (en) * | 2015-08-03 | 2015-11-18 | 广东威创视讯科技股份有限公司 | Element data display method and system |
| CN105069105B (en) * | 2015-08-03 | 2019-04-16 | 广东威创视讯科技股份有限公司 | Factor data display methods and system |
| CN105159543A (en) * | 2015-09-25 | 2015-12-16 | 百度在线网络技术（北京）有限公司 | Method and device for providing map service |
| CN107798018A (en) * | 2016-09-06 | 2018-03-13 | 高德软件有限公司 | A kind of method to set up and device of point of interest display information |
| CN107798018B (en) * | 2016-09-06 | 2020-04-10 | 高德软件有限公司 | Method and device for setting display information of interest points |
| CN107329652A (en) * | 2017-06-22 | 2017-11-07 | 巴拉巴网络科技（北京）有限公司 | Object identity method, device, system and machinable medium |
| CN110110246A (en) * | 2019-05-13 | 2019-08-09 | 北京金和网络股份有限公司 | Shops's recommended method based on geographical information grid density |
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Application publication date: 20141112 |
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| RJ01 | Rejection of invention patent application after publication |