CN101639847B - Electronic map query method, electronic map query system and navigator - Google Patents
Electronic map query method, electronic map query system and navigator Download PDFInfo
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- CN101639847B CN101639847B CN2009100858026A CN200910085802A CN101639847B CN 101639847 B CN101639847 B CN 101639847B CN 2009100858026 A CN2009100858026 A CN 2009100858026A CN 200910085802 A CN200910085802 A CN 200910085802A CN 101639847 B CN101639847 B CN 101639847B
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Abstract
The invention provides an electronic map query method, an electronic map query system and a navigator; the electronic map query method comprises: determining the search region on an electronic map; determining the classification of point of information to be queried; querying a first point of information which is positioned in the search region and meets the classification; displaying the first point of information. By adopting the invention, the point of information positioned in the preset search region can be rapidly and accurately queried according to the classification of the point of information to be queried.
Description
Technical field
The present invention relates to the electronic chart field, relate in particular to a kind of electronic map query method, electronic map query system and navigating instrument.
Background technology
Information point in the electronic chart is magnanimity normally, with 1,000,000, necessarily calculate, and under this kind situation, the information point that must come inquiring user to need through the mode of search.In general, the user is stronger to the information point demand in the neighboring area, own position, for example: the information points such as restaurant, cinema or hospital in the neighboring area, user position.
Have the method for the peripheral information point be used to inquire about preset reference point in the prior art, its concrete implementation procedure is: a preset reference point and a search radius are set; Distance between inquiry and the said preset reference point is less than or equal to the full detail point of said search radius, and on electronic chart, shows the information point that inquires.In the said method; The information point that inquires is the full detail point that is positioned at certain region of search, yet, generally; The user only to the information point that belongs to specific classification in certain region of search (for example: the restaurant) interested; Obviously, the full detail point in certain region of search all is presented on the electronic chart, can makes troubles searching of user.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of electronic map query method, electronic map query system and navigating instrument, and the information point that is positioned at preset region of search is inquired about in the classification of information inquiring point quickly and accurately as required.
For addressing the above problem, the embodiment of the invention provides a kind of electronic map query method, may further comprise the steps:
Confirm the region of search on the electronic chart;
Need to confirm the classification of information inquiring point;
Inquiry is positioned at said region of search, and satisfies the first information point of said classification;
Show said first information point;
Wherein, the region of search on said definite electronic chart is specially: obtain on electronic chart selected search bounding box, the closed region that will confirm according to said search bounding box is as said region of search; Said search bounding box is rectangle, square, circular boundary frame or irregular figure, is drawn on electronic chart by the user to form;
Said inquiry is positioned at said region of search; And the first information point that satisfies said classification is specially: obtain and be positioned at said search bounding box or be positioned at second information point on the said search bounding box, said second information point is the information point that is positioned at said region of search; Judge whether said second information point satisfies the classification of said needs information inquiring point, and second information point of classification that will satisfy said needs information inquiring point is as said first information point.
Region of search on said definite electronic chart is specially: confirm the search center point, said search center point is: the current point of navigating instrument location, the information point of confirming according to the search information of input or selected point on electronic chart; Confirm search radius; Confirming with said search center point to be the center of circle, is the region of search of radius with said search radius;
Said inquiry is positioned at said region of search; And the first information point that satisfies said classification is specially: obtain second information point that is less than or equal to said search radius with the distance of said search center point, said second information point is the information point that is positioned at said region of search; Judge whether said second information point satisfies the classification of said needs information inquiring point, and second information point of classification that will satisfy said needs information inquiring point is as said first information point.
The said first information point of said demonstration is specially: obtain the attribute information of said first information point, said attribute information comprises any or multinomial in the following content: title, classification, address, telephone number, coordinate position and and search center point between distance; Generation comprises the display list of the attribute information of said first information point, the first information point in the said display list show according to classification or according to and search center point between the demonstration of distance order.
The said first information point of said demonstration is specially: the classification and the coordinate position that obtain said first information point; According to the classification and the coordinate position of said first information point, on electronic chart, generate the icon of first information point, wherein, belong to the color difference of the icon of different first information points of classifying.
The information point that said demonstration inquires is specially: the attribute information that obtains said first information point; Generation comprises the display list of the attribute information of said first information point; Obtain the classification and the coordinate position of said first information point; According to the classification and the coordinate position of said first information point, on electronic chart, generate the icon of first information point; Set up the icon of first information point corresponding on the first information point in the said display list and the said electronic chart related; When the first information point in said display list is clicked; The outstanding icon that shows corresponding first information point on said electronic chart; When the icon of said first information point is clicked, show the attribute information of first information point corresponding in the said display list.
The embodiment of the invention also provides a kind of electronic map query system, comprising:
The region of search determination module is used for confirming the region of search on the electronic chart;
The classification determination module is used to need to confirm the classification of information inquiring point;
Enquiry module is used for inquiry and is positioned at said region of search, and satisfies the first information point of said classification;
Display module is used to show said first information point;
Wherein, said region of search determination module comprises: the 4th confirms the unit, is used to obtain search bounding box selected on electronic chart, and the closed region that will confirm according to said search bounding box is as said region of search;
Said enquiry module comprises: second acquisition unit, and be used to obtain and be positioned at said search bounding box or be positioned at second information point on the said search bounding box, said second information point is the information point that is positioned at said region of search; Second judging unit is used to judge whether said second information point satisfies the classification of said needs information inquiring point, and second information point of classification that will satisfy said needs information inquiring point is as said first information point.
Said region of search determination module comprises: first confirms the unit, is used for confirming the search center point, and said search center point is: the current point of navigating instrument location, the information point of confirming according to the search information of input or the point of on electronic chart, selecting; Second confirms the unit, is used for confirming search radius; The 3rd confirms the unit, and being used for confirming with said search center point is the center of circle, is the region of search of radius with said search radius;
Said enquiry module comprises:
First acquiring unit is used to obtain second information point that is less than or equal to said search radius with the distance of said search center point, and said second information point is the information point that is positioned at said region of search;
First judging unit is used to judge whether said second information point satisfies the classification of said needs information inquiring point, and second information point of classification that will satisfy said needs information inquiring point is as said first information point.
Said display module comprises:
The 3rd acquiring unit is used to obtain the attribute information of said first information point, and said attribute information comprises any or multinomial in the following content: title, classification, address, telephone number, coordinate position and and search center point between distance;
The display list generation unit is used to generate the display list of the attribute information that comprises said first information point, the first information point in the said display list show according to classification or according to and search center point between the demonstration of distance order.
Said display module comprises:
The 4th acquiring unit is used to obtain the classification and the coordinate position of said first information point;
The icon generation unit is used for classification and coordinate position according to said first information point, on electronic chart, generates the icon of first information point, wherein, belongs to the color difference of the icon of different first information points of classifying.
Said display module comprises:
The 3rd acquiring unit is used to obtain the attribute information of said first information point;
The tabulation generation unit is used to generate the display list of the attribute information that comprises said first information point;
The 4th acquiring unit is used to obtain the classification and the coordinate position of said first information point;
The icon generation unit is used for classification and coordinate position according to said first information point, on electronic chart, generates the icon of first information point;
Associative cell; Be used for setting up the icon of first information point corresponding on the first information point of said display list and the said electronic chart related; When the first information point in said display list is clicked; The outstanding icon that shows corresponding first information point on said electronic chart when the icon of said first information point is clicked, shows the attribute information of first information point corresponding in the said display list.
The embodiment of the invention also provides a kind of navigating instrument, comprises electronic map query system, and said electronic map query system comprises:
The region of search determination module is used for confirming the region of search on the electronic chart; The classification determination module is used to need to confirm the classification of information inquiring point;
Enquiry module is used for inquiry and is positioned at said region of search, and satisfies the first information point of said classification; Display module is used to show said first information point;
Wherein, said region of search determination module comprises: the 4th confirms the unit, is used to obtain search bounding box selected on electronic chart, and the closed region that will confirm according to said search bounding box is as said region of search;
Said enquiry module comprises: second acquisition unit, and be used to obtain and be positioned at said search bounding box or be positioned at second information point on the said search bounding box, said second information point is the information point that is positioned at said region of search; Second judging unit is used to judge whether said second information point satisfies the classification of said needs information inquiring point, and second information point of classification that will satisfy said needs information inquiring point is as said first information point.
Embodiments of the invention have following beneficial effect:
Be positioned at preset region of search through confirming region of search on the electronic chart and the classification that needs information inquiring point, obtaining, and satisfy the information point of said classification, thereby the user can inquire the information point that needs quickly and accurately.In addition, can be through generating display list or on electronic chart, generating the modes such as icon of information point, in order, the information such as position of display message point clearly, make the user can judge fast whether the information point that inquires meets the requirements.
Fig. 1 is the schematic flow sheet of the electronic map query method of the embodiment of the invention;
Fig. 2 is another schematic flow sheet of the electronic map query method of the embodiment of the invention;
Fig. 3 is the schematic flow sheet of display packing of the first information point of the embodiment of the invention;
Fig. 4 is the concrete application scenarios synoptic diagram of display packing of the first information point of the embodiment of the invention;
Fig. 5 is another concrete application scenarios synoptic diagram of display packing of the first information point of the embodiment of the invention;
Fig. 6 is the another schematic flow sheet of the electronic map query method of the embodiment of the invention;
Fig. 7 is the structural representation of the electronic map query system of the embodiment of the invention;
Fig. 8 is another structural representation of the electronic map query system of the embodiment of the invention;
Fig. 9 is the another structural representation of the electronic map query system of the embodiment of the invention;
Figure 10 is the structural representation of the display module of the embodiment of the invention.
Below in conjunction with accompanying drawing and embodiment, specific embodiments of the invention describes in further detail.
Description of drawings
Embodiment
Be illustrated in figure 1 as the schematic flow sheet of the electronic map query method of the embodiment of the invention, said electronic map query method may further comprise the steps:
Step 102 need to confirm the classification of information inquiring point; The classification of said information point can comprise multiclass classification; For example, the classification of a certain information point can comprise the classification of a plurality of different stages such as macrotaxonomy, middle classification and subclassification, wherein; Macrotaxonomy can be the food and drink class; In classification can for: Broiled Dishes, subclassification be can: Korea Spro's formula Broiled Dishes, the refinement successively of classifying.The classification of the information point of confirming in this step can be other classification of arbitrary number of level, can perhaps be a plurality of classification of different stage for other a plurality of classification of same level also.For example, the classification that needs information inquiring point that the user sets can be food and drink class (macrotaxonomy), also can be Chinese meal class and western-style food class (other a plurality of middle classification of same level), still can be Chinese meal class (middle classification) and Korea Spro's formula Broiled Dishes (subclassification).Saidly need the classification of information inquiring point to set, when the user does not set, can be defaulted as the selection all classification by the user.
Step 104 shows said first information point.
Because the first information point that inquires is positioned at preset region of search (being generally neighboring area, user position), and satisfy the classification of the information point that the user sets, therefore, can inquire the information point that the user needs quickly and accurately.
In the above-mentioned steps 101, can confirm the region of search on the electronic chart in several ways, for example several kinds of modes wherein described below.
Be illustrated in figure 2 as another schematic flow sheet of the electronic map query method of the embodiment of the invention, said electronic map query method may further comprise the steps:
Step 201 is confirmed the search center point, information point that said search center point can be confirmed for the current point of: navigating instrument location, according to the search information of input or selected point on electronic chart;
Step 202 is confirmed search radius; Said search radius can be the numerical value of system recommendation, certainly, also can be provided with by user's own;
Step 203 confirms with said search center point to be the center of circle, is the region of search of radius with said search radius; With said search center point is the center of circle; With said search radius is radius; Can obtain a circular boundary frame; Can confirm a region of search according to said circular boundary frame, be positioned at said circular boundary frame or the information point that is positioned on the said circular boundary frame and be the information point that is positioned at said region of search;
Step 204 is obtained second information point that is less than or equal to said search radius with the distance of said search center point, and said second information point is the information point that is positioned at said region of search; In this step; Can be according to the coordinate position of the information point on the electronic chart and the coordinate position of said search center point, the information point on the calculating electronic chart and the distance of said search center point, and the distance that will calculate compares with said search radius; In said distance during greater than said search radius; Show that this information point is positioned at outside the said circular boundary frame, said information point is not the information point that is positioned at said region of search, gives up to fall this information point; During less than said search radius, show that this information point is positioned at said circular boundary frame in said distance, said information point is second information point that is positioned at said region of search, the said information point of buffer memory; When said distance equals said search radius, show that this information point is positioned on the said circular boundary frame, said information point is second information point that is positioned at said region of search, the said information point of buffer memory.
Step 205 judges whether said second information point satisfies the classification of said needs information inquiring point, and second information point of classification that will satisfy said needs information inquiring point is as said first information point; When needing being categorized as of information inquiring point multiple, said second information point only need satisfy wherein a kind of getting final product said.
Step 206 shows said first information point.
In step 206, can show said first information point in several ways, for example several kinds of display packings are wherein described below.
Be illustrated in figure 3 as the schematic flow sheet of display packing of the first information point of the embodiment of the invention, above-mentioned steps 206 can specifically may further comprise the steps:
Step 301 is obtained the attribute information of said first information point, and the attribute information of said first information point comprises any or multinomial in the following content: title, classification, address, telephone number, coordinate position and and search center point between distance etc.
Be illustrated in figure 4 as the concrete application scenarios synoptic diagram of display packing of the first information point of the embodiment of the invention; What needing of supposing that the user sets, information inquiring selected is categorized as: Chinese meal class and Korea Spro's formula Broiled Dishes; And on electronic chart, set search center point; An and definite search radius; At first inquiry is positioned at second information point of the region of search of confirming with said search center point and said search radius, judges then whether the classification of said second information point is Chinese meal class or Korea Spro's formula Broiled Dishes, certainly; Also can at first inquire about the information point that all satisfy Chinese meal class or Korea Spro's formula Broiled Dishes, and then judge whether those information points are positioned at said region of search.When the one of which in Chinese meal class and Korea Spro's formula Broiled Dishes is satisfied in the classification of second information point, assert that then said second information point is for needing the first information point of inquiry.Suppose that the first information point that inquires is 5, wherein information point A, information point B and information point C be categorized as the Chinese meal class, Korea Spro's formula that is categorized as Broiled Dishes of information point D and information point E, as shown in Figure 4, can be together with the information point centralized displaying that belongs to same classification.In addition; Can also be according to the coordinate position of the first information point that inquires; Calculate the distance between said first information point and the search center point, and according to and search center point between the far and near order of distance show, for example; Be illustrated in figure 5 as another concrete application scenarios synoptic diagram of display packing of the first information point of the embodiment of the invention; Among Fig. 5, nearest information point D is presented at the top of display list with range search central point (the solid black round dot among the figure), and the closed region that circular dashed line is confirmed among the figure is the region of search.Certainly, also can on display list, show said first information point simultaneously according to the classification of first information point and the distance between said first information point and the search center point.
In addition, can also show said first information point through the mode that on electronic chart, generates icon, as shown in Figure 3 at this moment, said step 206 can also may further comprise the steps:
Step 303 is obtained the classification and the coordinate position of said first information point;
Certainly, can adopt the mode of display list and icon to show the first information point that inquires simultaneously, also can only adopt wherein a kind of display mode.
In addition, when adopting above-mentioned two kinds of display modes at the same time, therefore the first information point in display list and the icon always can, can associate two kinds of display modes one to one, and at this moment, said step 206 can also comprise:
Be to confirm the region of search in the foregoing description through the mode of a selected search center point and a search radius; In addition; The user can also drag modes such as mouse through click; Directly on electronic chart, select a region of search, be illustrated in figure 6 as the another schematic flow sheet of the electronic map query method of the embodiment of the invention, said electronic map query method may further comprise the steps:
Step 601 is obtained on electronic chart selected search bounding box, and the closed region that will confirm according to said search bounding box is as said region of search; Said search bounding box is generally rectangle, square or circular boundary frame, is clicked on electronic chart by the user to drag mouse and draw and to form, and certainly, said search bounding box also can be irregular figure.Which kind of figure no matter this search bounding box be, all has the curve of a sealing, thereby confirm that an enclosed areas is as said region of search.
Step 602 is obtained and is positioned at said search bounding box or is positioned at second information point on the said search bounding box, and said second information point is the information point that is positioned at said region of search;
Step 603 judges whether said second information point satisfies the classification of said needs information inquiring point, and second information point of classification that will satisfy said needs information inquiring point is as said first information point;
Step 604 shows said first information point.
Can adopt the display list described in the foregoing description or the mode of icon to show said first information point in the said step 604 equally, be not described in detail at this.Certainly, in the present embodiment, owing to do not confirm the search center point, therefore; When the mode with display list shows said first information point, can't according to and search center point between distance sort, certainly; In case of necessity, can according to the search bounding box shape, set a central point as the search center point; Calculate the distance between first information point and the search center point, for example, when the search bounding box is rectangle; Can be with its intersection of diagonal as the search center point, at said search bounding box when being circular, with the center of circle as said search center point.
The display method for electronic map that provides through the foregoing description; Can be through confirming region of search on the electronic chart and the classification that needs information inquiring point; Obtain and be positioned at preset region of search; And satisfy the information point of said classification, thereby the user can inquire the information point that needs quickly and accurately.In addition, can be through generating display list or on electronic chart, generating the modes such as icon of information point, in order, the information such as position of display message point clearly, make the user can judge fast whether the information point that inquires meets the requirements.
Be illustrated in figure 7 as the structural representation of the electronic map query system of the embodiment of the invention, said electronic map query system comprises:
Region of search determination module 701 is used for confirming the region of search on the electronic chart; Said electronic chart can be map of navigation electronic and network electronic map etc.Said region of search needs the zone at information inquiring point place for the user.
Because the first information point that inquires is positioned at preset region of search (being generally neighboring area, user position), and satisfy the classification of the information point that the user sets, therefore, can inquire the information point that the user needs quickly and accurately.
Above-mentioned region of search determination module 701 can be confirmed the region of search on the electronic chart in several ways, for example several kinds of modes is wherein described below.
Be illustrated in figure 8 as another structural representation of the electronic map query system of the embodiment of the invention, on the basis of embodiment shown in Figure 7, said region of search determination module 701 comprises:
First confirms unit 7011, is used for confirming the search center point, and said search center point is: the current point of navigating instrument location, the information point of confirming according to the search information of input or the point of on electronic chart, selecting;
Second confirms unit 7012, is used for confirming search radius; Said search radius can be the numerical value of system recommendation, certainly, also can be provided with by user's own;
The 3rd confirms unit 7013, and being used for confirming with said search center point is the center of circle, is the region of search of radius with said search radius;
At this moment, said enquiry module 703 comprises:
First acquiring unit 7031 is used to obtain second information point that is less than or equal to said search radius with the distance of said search center point, and said second information point is the information point that is positioned at said region of search;
First judging unit 7032 is used to judge whether said second information point satisfies the classification of said needs information inquiring point, and second information point of classification that will satisfy said needs information inquiring point is as said first information point.When needing being categorized as of information inquiring point multiple, said second information point only need satisfy wherein a kind of getting final product said.
Be to confirm the region of search in the foregoing description through the mode of a selected search center point and a search radius; In addition; The user can also drag modes such as mouse through click, directly on electronic chart, selectes a region of search, is illustrated in figure 9 as the another schematic flow sheet of the electronic map query system of the embodiment of the invention; On the basis of embodiment shown in Figure 7, said region of search determination module 701 comprises:
The 4th confirms unit 7014, is used to obtain search bounding box selected on electronic chart, and the closed region that will confirm according to said search bounding box is as said region of search; Said search bounding box is generally rectangle, square or circular boundary frame, is clicked on electronic chart by the user to drag mouse and draw and to form, and certainly, said search bounding box also can be irregular figure.Which kind of figure no matter this search bounding box be, all has the curve of a sealing, thereby confirm that an enclosed areas is as said region of search.
Said enquiry module 703 comprises:
Second acquisition unit 7033 is used to obtain and is positioned at said search bounding box or is positioned at second information point on the said search bounding box, and said second information point is the information point that is positioned at said region of search;
Second judging unit 7034 is used to judge whether said second information point satisfies the classification of said needs information inquiring point, and second information point of classification that will satisfy said needs information inquiring point is as said first information point.
Above-mentioned display module 704 can show said first information point in several ways, for example several kinds of display modes is wherein described below.
Shown in figure 10 is the structural representation of the display module of the embodiment of the invention, and on the basis of embodiment shown in Figure 7, said display module 704 comprises:
The 3rd acquiring unit 7041; Be used to obtain the attribute information of said first information point, said attribute information comprises any or multinomial in the following content: title, classification, address, telephone number, coordinate position and and search center point between distance etc.;
Display list generation unit 7042 is used to generate the display list of the attribute information that comprises said first information point, the first information point in the said display list show according to classification or according to and search center point between the demonstration of distance order.First information point in the said display list show according to classification or according to and search center point between the demonstration of distance order.
In addition, can also show said first information point through the mode that on electronic chart, generates icon, at this moment, said display module 704 comprises:
The 4th acquiring unit 7043 is used to obtain the classification and the coordinate position of said first information point;
Icon generation unit 7044; Be used for classification and coordinate position according to said first information point; On electronic chart, generate the icon of first information point; Wherein, in order to know the first information point of distinguishing different classification, can be with the various colors that is shown as of the icon that belongs to different first information points of classifying.
Certainly, can adopt the mode of display list and icon to show the first information point that inquires simultaneously, also can only adopt wherein a kind of display mode.
In addition, when adopting above-mentioned two kinds of display modes at the same time, therefore the first information point in display list and the icon always can, can associate two kinds of display modes one to one, and at this moment, said display module 704 can also comprise:
The electronic chart display system that provides through the foregoing description; Can be through confirming region of search on the electronic chart and the classification that needs information inquiring point; Obtain and be positioned at preset region of search; And satisfy the information point of said classification, thereby the user can inquire the information point that needs quickly and accurately.In addition, can be through generating display list or on electronic chart, generating the modes such as icon of information point, in order, the information such as position of display message point clearly, make the user can judge fast whether the information point that inquires meets the requirements.
The embodiment of the invention also provides a kind of navigating instrument, comprises an electronic map query system, and said electronic map query system comprises: the region of search determination module is used for confirming the region of search on the electronic chart; The classification determination module is used to need to confirm the classification of information inquiring point; Enquiry module is used for inquiry and is positioned at said region of search, and satisfies the first information point of said classification; Display module is used to show said first information point.The realization principle and the structure of the electronic map query system in the electronic map query system in the said navigating instrument and the foregoing description are identical, are not described in detail at this.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (11)
1. an electronic map query method is characterized in that, may further comprise the steps:
Confirm the region of search on the electronic chart;
Need to confirm the classification of information inquiring point;
Inquiry is positioned at said region of search, and satisfies the first information point of said classification;
Show said first information point;
Wherein, the region of search on said definite electronic chart is specially: obtain on electronic chart selected search bounding box, the closed region that will confirm according to said search bounding box is as said region of search; Said search bounding box is rectangle, square, circular boundary frame or irregular figure, is clicked on electronic chart by the user to drag cursor and draw and to form;
Said inquiry is positioned at said region of search; And the first information point that satisfies said classification is specially: obtain and be positioned at said search bounding box or be positioned at second information point on the said search bounding box, said second information point is the information point that is positioned at said region of search; Judge whether said second information point satisfies the classification of said needs information inquiring point, and second information point of classification that will satisfy said needs information inquiring point is as said first information point.
2. electronic map query method according to claim 1 is characterized in that, the region of search on said definite electronic chart is specially:
Confirm the search center point, said search center point is: the current point of navigating instrument location, the information point of confirming according to the search information of input or selected point on electronic chart;
Confirm search radius;
Confirming with said search center point to be the center of circle, is the region of search of radius with said search radius;
Said inquiry is positioned at said region of search, and the first information point that satisfies said classification is specially:
Obtain second information point that is less than or equal to said search radius with the distance of said search center point, said second information point is the information point that is positioned at said region of search;
Judge whether said second information point satisfies the classification of said needs information inquiring point, and second information point of classification that will satisfy said needs information inquiring point is as said first information point.
3. electronic map query method according to claim 1 is characterized in that, the said first information point of said demonstration is specially:
Obtain the attribute information of said first information point, said attribute information comprises any or multinomial in the following content: title, classification, address, telephone number, coordinate position and and search center point between distance;
Generation comprises the display list of the attribute information of said first information point, the first information point in the said display list show according to classification or according to and search center point between the demonstration of distance order.
4. electronic map query method according to claim 1 is characterized in that, the said first information point of said demonstration is specially:
Obtain the classification and the coordinate position of said first information point;
According to the classification and the coordinate position of said first information point, on electronic chart, generate the icon of first information point, wherein, belong to the color difference of the icon of different first information points of classifying.
5. electronic map query method according to claim 1 is characterized in that, the information point that said demonstration inquires is specially:
Obtain the attribute information of said first information point;
Generation comprises the display list of the attribute information of said first information point;
Obtain the classification and the coordinate position of said first information point;
According to the classification and the coordinate position of said first information point, on electronic chart, generate the icon of first information point;
Set up the icon of first information point corresponding on the first information point in the said display list and the said electronic chart related; When the first information point in said display list is clicked; The outstanding icon that shows corresponding first information point on said electronic chart; When the icon of said first information point is clicked, show the attribute information of first information point corresponding in the said display list.
6. an electronic map query system is characterized in that, comprising:
The region of search determination module is used for confirming the region of search on the electronic chart;
The classification determination module is used to need to confirm the classification of information inquiring point;
Enquiry module is used for inquiry and is positioned at said region of search, and satisfies the first information point of said classification;
Display module is used to show said first information point;
Wherein, said region of search determination module comprises: the 4th confirms the unit, is used to obtain search bounding box selected on electronic chart, and the closed region that will confirm according to said search bounding box is as said region of search; Said search bounding box is rectangle, square, circular boundary frame or irregular figure, is clicked on electronic chart by the user to drag cursor and draw and to form;
Said enquiry module comprises: second acquisition unit, and be used to obtain and be positioned at said search bounding box or be positioned at second information point on the said search bounding box, said second information point is the information point that is positioned at said region of search; Second judging unit is used to judge whether said second information point satisfies the classification of said needs information inquiring point, and second information point of classification that will satisfy said needs information inquiring point is as said first information point.
7. electronic map query system according to claim 6 is characterized in that, said region of search determination module comprises:
First confirms the unit, is used for confirming the search center point, and said search center point is: the current point of navigating instrument location, the information point of confirming according to the search information of input or the point of on electronic chart, selecting;
Second confirms the unit, is used for confirming search radius;
The 3rd confirms the unit, and being used for confirming with said search center point is the center of circle, is the region of search of radius with said search radius;
Said enquiry module comprises:
First acquiring unit is used to obtain second information point that is less than or equal to said search radius with the distance of said search center point, and said second information point is the information point that is positioned at said region of search;
First judging unit is used to judge whether said second information point satisfies the classification of said needs information inquiring point, and second information point of classification that will satisfy said needs information inquiring point is as said first information point.
8. electronic map query system according to claim 6 is characterized in that, said display module comprises:
The 3rd acquiring unit is used to obtain the attribute information of said first information point, and said attribute information comprises any or multinomial in the following content: title, classification, address, telephone number, coordinate position and and search center point between distance;
The display list generation unit is used to generate the display list of the attribute information that comprises said first information point, the first information point in the said display list show according to classification or according to and search center point between the demonstration of distance order.
9. electronic map query system according to claim 6 is characterized in that, said display module comprises:
The 4th acquiring unit is used to obtain the classification and the coordinate position of said first information point;
The icon generation unit is used for classification and coordinate position according to said first information point, on electronic chart, generates the icon of first information point, wherein, belongs to the color difference of the icon of different first information points of classifying.
10. electronic map query system according to claim 6 is characterized in that, said display module comprises:
The 3rd acquiring unit is used to obtain the attribute information of said first information point;
The tabulation generation unit is used to generate the display list of the attribute information that comprises said first information point;
The 4th acquiring unit is used to obtain the classification and the coordinate position of said first information point;
The icon generation unit is used for classification and coordinate position according to said first information point, on electronic chart, generates the icon of first information point;
Associative cell; Be used for setting up the icon of first information point corresponding on the first information point of said display list and the said electronic chart related; When the first information point in said display list is clicked; The outstanding icon that shows corresponding first information point on said electronic chart when the icon of said first information point is clicked, shows the attribute information of first information point corresponding in the said display list.
11. a navigating instrument comprises electronic map query system, it is characterized in that, said electronic map query system comprises:
The region of search determination module is used for confirming the region of search on the electronic chart;
The classification determination module is used to need to confirm the classification of information inquiring point;
Enquiry module is used for inquiry and is positioned at said region of search, and satisfies the first information point of said classification;
Display module is used to show said first information point;
Wherein, said region of search determination module comprises: the 4th confirms the unit, is used to obtain search bounding box selected on electronic chart, and the closed region that will confirm according to said search bounding box is as said region of search; Said search bounding box is rectangle, square, circular boundary frame or irregular figure, is clicked on electronic chart by the user to drag cursor and draw and to form;
Said enquiry module comprises: second acquisition unit, and be used to obtain and be positioned at said search bounding box or be positioned at second information point on the said search bounding box, said second information point is the information point that is positioned at said region of search; Second judging unit is used to judge whether said second information point satisfies the classification of said needs information inquiring point, and second information point of classification that will satisfy said needs information inquiring point is as said first information point.
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