CN106528762B - Electronic map processing method and processing system for identifying interest points - Google Patents
Electronic map processing method and processing system for identifying interest points Download PDFInfo
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Abstract
The invention discloses an electronic map processing method and a processing system for identifying interest points, wherein the electronic map processing method comprises the following steps: the method comprises the following steps: thinning data points on the electronic map to obtain interest points and corresponding map labels; step two: converting the map label into a label layer, and acquiring an external text box labeled with different data points, wherein the external text box is filled with information of corresponding interest points; step three: fusing the circumscribed text box and the corresponding interest points to form dynamic interest point information for identification; step four: generating a base map without the interest point icons, marking the interest point icons in the base map to generate a marking map, and marking dynamic interest point information at the interest point icons in the marking map to form a dynamic identification map. The electronic map processing method for identifying the interest points can effectively realize the automatic identification of the interest point icons and the automatic labeling outer contour range, and improve the query efficiency and accuracy.
Description
Technical Field
The invention relates to the technical field of data processing, in particular to an electronic map processing method and system for identifying interest points.
Background
An Electronic map (digital map) is a map that is digitally stored and referred to using computer technology. The method for storing Information in electronic map generally uses vector image storage, the map scale can be enlarged, reduced or rotated without affecting the display effect, the map scale can not be enlarged or reduced by using bitmap storage in early stage, and the modern electronic map software generally uses GIS (Geographic Information System) to store and transmit map data.
According to the requirements of radio and television operators, when the detailed information of the resource is inquired in an electronic map of a resource management system based on the GIS technology through map identification, the detailed information of the resource can be identified when a mouse is moved to a resource icon and a dynamic label of the icon. Meanwhile, in the process of manufacturing the electronic map, the data volume of the point of interest data is usually large and the point of interest data is easy to overlap on the map.
Because data are overlapped, the interest point data only can identify icons, and the dynamic labels of the interest point data do not support map identification, detailed information of the data cannot be well inquired by identifying the icons of the interest points and the overall outline of the dynamic labels at the same time, and the interaction effect, the inquiry efficiency and the inquiry accuracy are not ideal.
Disclosure of Invention
The invention aims to provide an electronic map processing method for interest point identification, which can effectively identify dynamic information of interest point icons and labels.
In order to achieve the purpose, the invention provides the following scheme:
an electronic map processing method for point of interest identification, the electronic map processing method comprising:
the method comprises the following steps: thinning data points on the electronic map to obtain interest points and corresponding map labels;
step two: converting the map label into a label layer, and acquiring an external text box labeled with different data points, wherein the external text box is filled with information of corresponding interest points;
step three: fusing the circumscribed text box and the corresponding interest points to form dynamic interest point information for identification;
step four: generating a base map without the interest point icons, marking the interest point icons in the base map to generate a marking map, and marking dynamic interest point information at the interest point icons in the marking map to form a dynamic identification map.
Optionally, in the identification map, the dynamic interest point information is set to be hidden, and when a mouse is placed at the interest point icon, information of a corresponding interest point is displayed.
Optionally, before the step one, the electronic map processing method further includes:
the same data points or the same information of the data points on the electronic map are merged.
Optionally, the data points include a token type data point and a normal type data point;
the method for thinning the data points on the electronic map comprises the following steps:
directly taking the mark type data points as interest points, and acquiring point parameters corresponding to the interest points from the electronic map; and
determining each combined common data point from the electronic map, and counting the number of the common data points;
comparing the number of common type data points with the set threshold value,
if the number of the common data points is smaller than a set threshold, thinning out interest points and corresponding point parameters from the electronic map according to the common data points;
if the number of the common data points is larger than a set threshold value, dividing each common data point into areas, and performing spatial thinning from the electronic map according to the divided areas to obtain interest points and corresponding area parameters of different areas; according to each common type data point in different areas, thinning out corresponding interest points and point parameters from the interest points and corresponding area parameters of the corresponding area;
and forming a map label corresponding to the interest point according to the point parameter.
Optionally, the landmark data points are government premises, museums.
Optionally, the information of the interest point includes at least one of a name, a category, a longitude, a latitude, a telephone, a rating, and a surrounding storefront.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
the electronic map processing method for identifying the interest points obtains the interest points and the corresponding map labels by thinning the data points on the electronic map, can effectively reduce repeated data processing in the data points, can improve the thinning processing speed and reduce the storage space; and then the external text box and the corresponding interest points are fused to form dynamic interest point information for identification, and the dynamic interest point information is marked in the marking map to form a dynamic identification map, so that the automatic identification of the interest point icons and the automatic marking outer contour range can be effectively realized, and the query efficiency and accuracy are improved.
The invention aims to provide an electronic map processing system for identifying interest points, which can effectively identify dynamic information of interest point icons and labels.
In order to achieve the purpose, the invention provides the following scheme:
an electronic map processing system of point of interest identification, the electronic map processing system comprising:
the thinning unit is used for thinning data points on the electronic map to obtain interest points and corresponding map labels;
the conversion unit is used for converting the map label into a label layer and acquiring an external text box labeled with different data points, wherein the external text box is filled with information of corresponding interest points;
the fusion unit is used for fusing the external text box and the corresponding interest points to form interest point dynamic labeling information for identification;
the generating unit is used for generating a base map without the interest point icons, marking the interest point icons in the base map to generate a marking map, and marking dynamic interest point information at the interest point icons in the marking map to form a dynamic identification map.
Optionally, the electronic map processing system further includes:
and the merging unit is connected with the rarefying unit and used for merging the same data points or the same information of the data points on the electronic map and sending the merged data points and information to the rarefying unit.
Optionally, the data points include a token type data point and a normal type data point;
the rarefying unit rarefying the data points on the electronic map comprises the following steps:
directly taking the mark type data points as interest points, and acquiring point parameters corresponding to the interest points from the electronic map; and
determining each combined common data point from the electronic map, and counting the number of the common data points;
comparing the number of common type data points with the set threshold value,
if the number of the common data points is smaller than a set threshold, thinning out interest points and corresponding point parameters from the electronic map according to the common data points;
if the number of the common data points is larger than a set threshold value, dividing each common data point into areas, and performing spatial thinning from the electronic map according to the divided areas to obtain interest points and corresponding area parameters of different areas; according to each common type data point in different areas, thinning out corresponding interest points and point parameters from the interest points and corresponding area parameters of the corresponding area;
and forming a map label corresponding to the interest point according to the point parameter.
Compared with the prior art, the electronic map processing system for identifying the interest points is the same as the electronic map processing method for identifying the interest points, and is not repeated herein.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a flow chart of an electronic map processing method for point of interest identification according to the present invention;
FIG. 2 is a block diagram of an electronic map processing system for point of interest identification according to the present invention.
Description of the symbols:
pumping unit 1, conversion unit 2
Fusion unit 3 generation unit 4
And a merging unit 5.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide an electronic map processing method for identifying interest points, which can effectively reduce repeated data processing in the data points by thinning the data points on the electronic map to obtain the interest points and corresponding map labels, can improve the thinning processing speed and reduce the storage space; and then the external text box and the corresponding interest points are fused to form dynamic interest point information for identification, and the dynamic interest point information is marked in the marking map to form a dynamic identification map, so that the automatic identification of the interest point icons and the automatic marking outer contour range can be effectively realized, and the query efficiency and accuracy are improved.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1, the electronic map processing method for identifying interest points of the present invention includes:
step 110: thinning data points on the electronic map to obtain interest points and corresponding map labels;
step 120: converting the map label into a label layer, and acquiring an external text box labeled with different data points, wherein the external text box is filled with information of corresponding interest points;
step 130: fusing the circumscribed text box and the corresponding interest points to form dynamic interest point information for identification;
step 140: generating a base map without the interest point icons, marking the interest point icons in the base map to generate a marking map, and marking dynamic interest point information at the interest point icons in the marking map to form a dynamic identification map.
Wherein the information of the point of interest includes at least one of a name, a category, a longitude, a latitude, a telephone, a rating, and a surrounding storefront. Preferably, the dynamic interest point information is set to be hidden, and when a mouse is placed at the interest point icon, the information of the corresponding interest point is displayed.
Further, before step 110, the electronic map processing method for identifying a point of interest according to the present invention further includes:
step 100: the same data points or the same information of the data points on the electronic map are merged.
Wherein the data points include a token type data point and a normal type data point. The mark type data points are data points of the landmark buildings in the actual area corresponding to the electronic map in the electronic map, and can be government premises, museums and the like.
In step 110, the method for thinning the data point on the electronic map includes:
for the landmark data points:
and directly taking the mark type data points as interest points, and acquiring point parameters corresponding to the interest points from the electronic map.
For the general type data points:
step 111: determining each combined common data point from the electronic map, and counting the number of the common data points;
step 112: comparing the number of common type data points with the set threshold value,
if the number of the common data points is smaller than a set threshold, thinning out interest points and corresponding point parameters from the electronic map according to the common data points;
if the number of the common data points is larger than a set threshold value, dividing each common data point into areas, and performing spatial thinning from the electronic map according to the divided areas to obtain interest points and corresponding area parameters of different areas; and thinning the corresponding interest points and point parameters from the interest points and the corresponding region parameters of the corresponding region according to the common data points in the different regions.
Step 113: and forming a map label corresponding to the interest point according to the point parameter.
The set threshold value may be determined according to the size of the actual area corresponding to the electronic map, for example, 100000. For a large number of common data Points, in order to give consideration to the effects of the drawing, the accuracy of the data and the execution efficiency, the invention adopts a method of combining Subset and Sub Points. The method comprises the steps of firstly carrying out spatial thinning through a Subset method to reduce data volume, and then carrying out thinning through a Sub Points method to achieve a better drawing effect. When the number of common data Points is small (for example, less than 100000), the Subset step can be omitted and the Sub Points method is directly used for thinning.
In step 120, the map label is converted into a label layer, so as to obtain an external text box labeled with different data points. Wherein, the circumscribed text box can be in various shapes, such as rectangle.
Because the calculation range of the label in the process of map slicing is different from that in the ArcMap or other map making software windows, if the map label is directly converted into the label layer in the ArcMap or other map making software windows, the label cannot be superposed with the label in the final map slice; meanwhile, for a large number of labels converted into the annotation layer, the program may be crashed due to the excessive calculation amount. In this embodiment, the map labels are partitioned, and then the map labels in the blocks are respectively converted into corresponding label layers. Through the block processing, the position of the annotation can be calculated according to the 'super-large slice' range used in the map slicing, so that the range of the annotation elements in the annotation layer can be completely overlapped with the annotation on the map slice, and the normal conversion of a large number of annotations into annotations can be ensured.
The annotation layer generated in the above manner only has text boxes of characters, and in order to meet the requirement that a prompt box can appear even when a user mouse moves to an interest point, the external text box and the corresponding interest point need to be fused to form dynamic interest point information for identification. And obtaining the outline of the interest point by the fused data.
In step 140, in the dynamic identification map, the dynamic interest point information of each interest point is hidden, and the user can move the mouse to different interest point icon positions to display the information of the interest points.
The electronic map processing method for identifying the interest points organizes data and map service by using the GIS technology on the basis of the existing data point processing method, and can achieve the purpose of improving the accuracy, efficiency and interaction effect of map identification when the data quantity of the interest points in the electronic map is too large.
In addition, the invention also provides an electronic map processing system for identifying the interest points. As shown in fig. 2, the electronic map processing system for identifying points of interest of the present invention includes a rarefying unit 1, a converting unit 2, a fusing unit 3, and a generating unit 4; the rarefying unit 1 rarefies data points on the electronic map to obtain interest points and corresponding map labels; the conversion unit 2 converts the map label into a label layer, and acquires an external text box labeled with different data points, wherein the external text box is filled with information of corresponding interest points; the fusion unit 3 fuses the external text box and the corresponding interest point to form interest point dynamic labeling information for identification; the generating unit 4 generates a base map without the interest point icons, marks the interest point icons in the base map to generate a marking map, and marks dynamic interest point information on the interest point icons in the marking map to form a dynamic identification map.
Wherein the information of the point of interest includes at least one of a name, a category, a longitude, a latitude, a telephone, a rating, and a surrounding storefront. Preferably, the dynamic interest point information is set to be hidden, and when a mouse is placed at the interest point icon, the information of the corresponding interest point is displayed.
Furthermore, the electronic map processing system for identifying interest points further comprises a merging unit 5, wherein the merging unit 5 is connected with the rarefying unit 1, and is used for merging the same data points or the same information of the data points on the electronic map and sending the merged data points and information to the rarefying unit 1.
The data points include a token type data point and a generic type data point. The mark type data points are data points of the landmark buildings in the actual area corresponding to the electronic map in the electronic map, and can be government premises, museums and the like.
The rarefying unit 1 rarefying the data points on the electronic map includes:
for the landmark data points:
and directly taking the mark type data points as interest points, and acquiring point parameters corresponding to the interest points from the electronic map.
For the general type data points:
determining each combined common data point from the electronic map, and counting the number of the common data points;
comparing the number of common type data points with the set threshold value,
if the number of the common data points is smaller than a set threshold, thinning out interest points and corresponding point parameters from the electronic map according to the common data points;
if the number of the common data points is larger than a set threshold value, dividing each common data point into areas, and performing spatial thinning from the electronic map according to the divided areas to obtain interest points and corresponding area parameters of different areas; and thinning the corresponding interest points and point parameters from the interest points and the corresponding region parameters of the corresponding region according to the common data points in the different regions.
And forming a map label corresponding to the interest point according to the point parameter.
The set threshold is determined according to the size of the actual area corresponding to the electronic map, for example, 100000.
The conversion unit 2 converts the map label into a label layer, so as to obtain an external text box labeled with different data points. Wherein, the circumscribed text box can be in various shapes, such as rectangle.
Because the calculation range of the label in the process of map slicing is different from that in the ArcMap or other map making software windows, if the map label is directly converted into the label layer in the ArcMap or other map making software windows, the label cannot be superposed with the label in the final map slice; meanwhile, for a large number of labels converted into the annotation layer, the program may be crashed due to the excessive calculation amount. In this embodiment, the map labels are partitioned, then the map labels in each block are respectively converted into corresponding label layers, and through partitioning processing, the positions of the labels can be calculated according to the 'super-large slice' range used during map slicing, so that the range of the label elements in the label layers can be completely overlapped with the labels on the map slices; it can also ensure that a large number of annotations are converted into annotations normally.
The annotation layer generated in the above manner only has text boxes of characters, and in order to meet the requirement that a prompt box can appear even when a user mouse moves to an interest point, the external text box and the corresponding interest point need to be fused to form dynamic interest point information for identification. And obtaining the outline of the interest point by the fused data.
Compared with the prior art, the electronic map processing system for identifying the interest points is the same as the electronic map processing method for identifying the interest points, and is not repeated herein.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the system disclosed by the embodiment, the description is relatively simple because the system corresponds to the method disclosed by the embodiment, and the relevant points can be referred to the method part for description.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (8)
1. An electronic map processing method for identifying interest points is characterized by comprising the following steps:
the method comprises the following steps: thinning data points on the electronic map to obtain interest points and corresponding map labels;
step two: converting the map label into a label layer, and acquiring an external text box labeled with different data points, wherein the external text box is filled with information of corresponding interest points;
step three: fusing the circumscribed text box and the corresponding interest points to form dynamic interest point information for identification;
step four: generating a base map without interest point icons, marking interest point icons in the base map to generate a marking map, and marking dynamic interest point information at the interest point icons in the marking map to form a dynamic identification map;
in the identification map, the dynamic interest point information is set in a hidden mode, and when a mouse is placed at an interest point icon, the information of the corresponding interest point is displayed.
2. The electronic map processing method for point of interest identification according to claim 1, wherein before step one, the electronic map processing method further comprises:
the same data points or the same information of the data points on the electronic map are merged.
3. The electronic map processing method of interest point identification of claim 2, wherein the data points comprise a token type data point and a general type data point;
the method for thinning the data points on the electronic map comprises the following steps:
directly taking the mark type data points as interest points, and acquiring point parameters corresponding to the interest points from the electronic map; and
determining each combined common data point from the electronic map, and counting the number of the common data points;
comparing the number of common type data points with the set threshold value,
if the number of the common data points is smaller than a set threshold, thinning out interest points and corresponding point parameters from the electronic map according to the common data points;
if the number of the common data points is larger than a set threshold value, dividing each common data point into areas, and performing spatial thinning from the electronic map according to the divided areas to obtain interest points and corresponding area parameters of different areas; according to each common type data point in different areas, thinning out corresponding interest points and point parameters from the interest points and corresponding area parameters of the corresponding area;
and forming a map label corresponding to the interest point according to the point parameter.
4. The method of claim 3, wherein the landmark data points are government premises and museums.
5. The method of any of claims 1-4, wherein the information of the point of interest includes at least one of a name, a category, a longitude, a latitude, a telephone, a rating, and a surrounding storefront.
6. An electronic map processing system for point of interest identification, the electronic map processing system comprising:
the thinning unit is used for thinning data points on the electronic map to obtain interest points and corresponding map labels;
the conversion unit is used for converting the map label into a label layer and acquiring an external text box labeled with different data points, wherein the external text box is filled with information of corresponding interest points;
the fusion unit is used for fusing the external text box and the corresponding interest points to form interest point dynamic labeling information for identification;
the generating unit is used for generating a base map without the interest point icons, marking the interest point icons in the base map to generate a marking map, and marking dynamic interest point information at the interest point icons in the marking map to form a dynamic identification map.
7. The point-of-interest identified electronic map processing system of claim 6, further comprising:
and the merging unit is connected with the rarefying unit and used for merging the same data points or the same information of the data points on the electronic map and sending the merged data points and information to the rarefying unit.
8. The electronic map processing system of point of interest identification of claim 7, wherein the data points include token-type data points and ordinary-type data points;
the rarefying unit rarefying the data points on the electronic map comprises the following steps:
and forming a map label corresponding to the interest point according to the point parameter.
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| CN108763269A (en) * | 2018-04-04 | 2018-11-06 | 浩亚信息科技有限公司 | A kind of visual chart POI display methods, electronic equipment and storage medium |
| CN108563793B (en) * | 2018-05-03 | 2022-02-15 | 成都瀚涛天图科技有限公司 | Drawing method of multi-display-level map |
| CN108875033B (en) * | 2018-06-25 | 2021-10-01 | 上海小驴帮网络科技有限公司 | Tourism journey information display method, device, server and storage medium |
| CN110647883A (en) * | 2018-12-29 | 2020-01-03 | 北京奇虎科技有限公司 | Method and device for mining point of interest (POI) data |
| CN109933638B (en) * | 2019-03-19 | 2023-05-23 | 腾讯科技（深圳）有限公司 | Target area contour determination method and device based on electronic map and storage medium |
| CN112489057B (en) * | 2020-12-05 | 2022-07-01 | 武汉中海庭数据技术有限公司 | Traffic sign data processing method, electronic device and storage medium |
| CN113849588B (en) * | 2021-09-23 | 2024-09-10 | 成都国卫通信技术有限公司 | Method for displaying massive position points of electronic map |
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