CN107092702B - Geographic information element position comparison checking method and device based on overlapping proportion - Google Patents
Geographic information element position comparison checking method and device based on overlapping proportion Download PDFInfo
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Abstract
The embodiment of the invention provides a geographic information element position comparison checking method and device based on an overlapping proportion, and relates to the field of surveying and mapping. The method comprises the following steps: acquiring a to-be-searched element set and a reference element set; acquiring current elements to be checked from the element set to be checked; and acquiring the reference elements matched with the current element to be checked in position in the reference element set according to the position matching condition based on the overlapping proportion. Compared with the prior art, whether the element to be checked is matched with the reference element in position or not can be checked.
Description
Technical Field
The invention relates to the field of surveying and mapping, in particular to a geographic information element position comparison checking method and device based on an overlapping proportion.
Background
In the field of surveying and mapping, geographic information result data includes various point, line and surface type elements, and when the quality of the geographic information result data is checked, whether certain elements meet the standard on positions needs to be checked, so that a method capable of quickly and effectively checking whether the elements to be checked are matched with reference elements on positions is needed.
Disclosure of Invention
In view of the above, an object of the embodiments of the present invention is to provide a method and an apparatus for comparing and checking geographic information element positions based on overlapping ratios, which aim to solve the above problems.
In a first aspect, an embodiment of the present invention provides a method for comparing and checking geographic information element positions based on an overlap ratio, where the method includes: acquiring a to-be-searched element set and a reference element set; acquiring current elements to be checked from the element set to be checked; and acquiring the reference elements matched with the current element to be checked in position in the reference element set according to the position matching condition based on the overlapping proportion.
In a second aspect, an embodiment of the present invention further provides a geographic information element position comparison checking apparatus based on an overlap ratio, where the apparatus includes: the element set acquisition module is used for acquiring an element set to be checked and a reference element set; the element to be checked acquisition module is used for acquiring the current element to be checked from the element to be checked set; and the position matching module is used for acquiring the reference elements in the reference element set, which are matched with the current element to be checked in position, according to the position matching condition based on the overlapping proportion.
According to the geographic information element position comparison inspection method and device based on the overlapping proportion, the current element to be inspected is obtained from the element set to be inspected, and each element in the element set to be inspected is subjected to traversal inspection; and then comparing the current element to be checked with each reference element in the reference element set according to the position matching condition based on the overlapping proportion, so as to obtain the reference element matched with the current element to be checked in position in the reference element set. When the element to be checked and the reference element meet the position matching condition based on the overlapping proportion, the element to be checked and the reference element are considered to be in position matching, and whether the element in the geographic information result data meets the position standard or not is rapidly and effectively checked, so that the element which does not meet the standard can be found in time and is subjected to subsequent processing.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the embodiments of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a block diagram of an electronic device that may be used in embodiments of the invention;
fig. 2 is a block flow diagram of a comparison checking method for geographic information element positions based on overlapping proportion according to a first embodiment of the present invention;
fig. 3 is a block diagram of a method for comparing and checking geographic information element positions based on overlapping proportion according to a second embodiment of the present invention;
fig. 4 is a block diagram of a flowchart of obtaining a location-matched reference element according to a second embodiment of the present invention;
fig. 5 is a block flow diagram of a geographic information element location comparison checking method based on overlapping proportion according to a third embodiment of the present invention;
fig. 6 is a block diagram illustrating a flowchart of obtaining a location-matched reference element according to a third embodiment of the present invention;
fig. 7 is a block diagram of a geographic information element position comparison checking apparatus based on an overlap ratio according to a fourth embodiment of the present invention.
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. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
Fig. 1 shows a block diagram of an electronic device 100 applicable to the embodiments of the present application. As shown in fig. 1, the electronic device 100 may include a memory 110, a memory controller 120, a processor 130, and a geographic information element location comparison checking device based on an overlap ratio. For example, the electronic device 100 may be a Personal Computer (PC), a tablet PC, a smart phone, a Personal Digital Assistant (PDA), or the like.
The memory 110, the memory controller 120, the processor 130, and the geographic information element position comparison checking device based on the overlapping proportion are electrically connected directly or indirectly to realize data transmission or interaction. For example, electrical connections between these components may be made through one or more communication or signal buses. The overlap ratio-based geographic information element position comparison checking method respectively comprises at least one software functional module which can be stored in the memory 110 in the form of software or firmware (firmware), for example, a software functional module or a computer program which is comprised by the overlap ratio-based geographic information element position comparison checking device.
The memory 110 may store various software programs and modules, such as program instructions/modules corresponding to the method and apparatus for checking the geographic information element position based on the overlap ratio provided in the embodiments of the present application. The processor 130 executes various functional applications and data processing by running software programs and modules stored in the memory 110, that is, implements the geographic information element position comparison checking method based on the overlap ratio in the embodiment of the present application. The Memory 110 may include, but is not limited to, a Random Access Memory (RAM), a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Read Only Memory (EPROM), an electrically Erasable Read Only Memory (EEPROM), and the like.
The processor 130 may be an integrated circuit chip having signal processing capabilities. The processor may be a general-purpose processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; but may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. Which may implement or perform the methods, steps, and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
When the electronic device 100 is a device with a self-display function, the device may further include a display module, which may provide an interactive interface (e.g., a user interface) between the electronic device 100 and a user or display image data for the user to refer to. For example, the result of determination of position matching between elements by the geographic information element position comparison inspection device based on the overlap ratio may be displayed.
First embodiment
Referring to fig. 2, an embodiment of the present invention provides a method for comparing and checking geographic information element positions based on overlapping proportions, where the method includes:
step S200: acquiring a to-be-searched element set and a reference element set;
the element set to be checked can be a set of certain elements needing to be checked in the geographic information result data, and the reference element set can be a standard element set used for evaluating the position quality of the elements in the geographic information result data. It is understood that, in an ideal case that all the elements in the element set to be checked meet the position matching criterion, the position information of the elements in the element set to be checked and the position information of the elements in the reference element set have a one-to-one matching relationship, that is, there are no redundant or missing elements in the path to be checked of the geographic information result data.
Step S210: acquiring current elements to be checked from the element set to be checked;
and extracting one current element to be checked which is checked immediately from the element set to be checked. Each element in the element set to be checked and the reference element set has its identification information, for example, the identification information may be in the form of a character ID for representing the identity of each element and avoiding repeated checking and matching of elements. The identity information of the element can also be used as a selection basis for acquiring the sequence of the current element to be checked to be subjected to position comparison check. It can be understood that, the order of performing traversal inspection on the elements to be inspected in the element set to be inspected is independent of the finally obtained position matching result between the elements in the element set to be inspected and the elements in the reference element set, and the position matching result depends only on the element set to be inspected and the reference element set itself, and the overlap ratio-based position matching condition provided in the subsequent step of the overlap ratio-based geographic information element position contrast inspection method provided in this embodiment.
Step S220: and acquiring the reference elements matched with the current element to be checked in position in the reference element set according to the position matching condition based on the overlapping proportion.
And comparing the current element to be checked with each reference element in the reference element set to obtain the reference element matched with the current element to be checked in position in the reference element set. When the element to be checked and the reference element satisfy the position matching condition based on the overlapping proportion, the element to be checked and the reference element are considered to be position matched. In this embodiment, the position matching condition based on the overlap ratio may be a ratio criterion of position overlap, for example, when there is a ratio of overlap of one reference element in the reference element set with the position of the current element to be checked being greater than or equal to 80%, it may be determined that the current element to be checked and the reference element are matched with each other in position information, assuming that the current element to be checked satisfies the position matching condition based on the overlap ratio. After all the elements to be checked in the element set to be checked are subjected to position comparison and check, a set of mutually matched elements to be checked and reference element combinations can be output, and the elements to be checked which are subjected to position matching and the original element set to be checked are compared to obtain the elements to be checked which do not meet the standard.
The geographic information result data described in this embodiment may be data of a path to be inspected, which is acquired based on an ArcGIS platform, and the geographic information result data includes elements of multiple point, line, and plane types, and each element has a geometric position thereof. By the geographic information element position comparison and inspection method based on the overlapping proportion, whether the geometric position of the element to be inspected is matched with the geometric position of the reference element serving as the standard can be judged, and whether the geographic information result data meets the standard in the position information matching degree is finally evaluated on the basis of the geometric position of the element to be inspected.
Second embodiment
Referring to fig. 3, an embodiment of the present invention provides a method for comparing and checking geographic information element positions based on overlapping proportions, where the method includes:
step S300: acquiring a to-be-searched element set and a reference element set;
step S310: acquiring current elements to be checked from the element set to be checked;
step S320: acquiring a reference element matched with the current element to be checked in position in the reference element set according to a position matching condition based on an overlapping proportion;
in this embodiment, the detailed implementation of the steps S300, S310 and S320 may refer to the steps S200, S210 and S220 in the first embodiment, which are not described herein again.
Step S330: if the reference element set does not have a reference element matched with the position of the current element to be checked, judging that the current element to be checked is a redundant element;
if the current element to be checked and all the reference elements in the reference element set cannot satisfy the position matching condition based on the overlapping proportion, it may be considered that the position information of the current element to be checked in the element set to be checked is redundant with respect to the reference element set, that is, the current element to be checked is a redundant element.
Step S340: and if the reference element set has a reference element which is not matched with any element to be detected in the element set to be detected in position, judging that the reference element is a missing element.
If all the elements to be checked in the element set to be checked are subjected to position checking, and a reference element which is not matched with the position of any element to be checked in the element set to be checked still exists in the reference element set, it indicates that the element which is supposed to be matched with the position of the reference element is missing in the element set to be checked, at this time, the reference element which is not matched with the position of any element to be checked is considered to be a missing element, that is, an element is missing in the element set to be checked at the position corresponding to the reference element.
In this embodiment, the redundant elements and the missing elements are both bases capable of directly determining whether the set of elements to be checked meets the position matching criteria, and the redundant elements and the missing elements are output, so as to facilitate subsequent processing such as deleting or supplementing elements at partial positions in the set of elements to be checked.
Referring to fig. 4, in the present embodiment, specifically, the step S320 may include the following sub-steps:
step S322: acquiring an intersecting element set which is geometrically intersected with the current element to be checked in the reference element set;
in this embodiment, each element in the element set to be checked and the reference element set has a geometric position, an intersecting element set that geometrically intersects the current element to be checked in the reference element set is obtained, and the current element to be checked and the intersecting elements are considered to have mutually overlapping parts on a geometric path, that is, the possibility of position matching exists. If there is a part where the intersecting element and the current element to be examined overlap each other on the geometric path to some extent, the intersecting element and the current element to be examined may be considered as being position-matched. In this embodiment, the certain degree is a position matching condition based on the overlap ratio.
Step S324: acquiring a current intersecting element from the intersecting element set;
similar to traversal inspection performed on the elements to be inspected in the element set to be inspected, in this embodiment, current intersecting elements may be extracted one by one from the intersecting element set according to the identity information of the intersecting elements in a certain order as objects to be inspected immediately.
Step S326: acquiring the position overlapping proportion of the current intersecting element and the current element to be checked;
in this embodiment, the method for obtaining the position overlap ratio may be to obtain the position information functions of the current intersecting element and the current element to be checked, and further obtain the position overlap ratio of the current intersecting element and the current element to be checked by calculating the similarity of the position information functions of the current intersecting element and the current element to be checked.
Step S327: judging whether the position overlapping proportion of the current intersecting element and the current element to be checked meets a position matching condition based on the overlapping proportion;
in this embodiment, the overlap ratio-based position matching condition may be a given threshold, and if the overlap ratio is greater than the given threshold, the overlap ratio-based position matching condition is satisfied. In particular, the given threshold value ranges from 0.8 to 0.9 in this embodiment. The size of the given threshold as the overlap ratio-based position matching condition may be adjusted as required, depending on the setting requirements of the criteria for position matching in practical implementations.
If the position overlapping proportion of the current intersecting element and the current element to be checked meets the position matching condition based on the overlapping proportion, executing step S328;
if the position overlapping proportion of the current intersecting element and the current element to be checked does not satisfy the position matching condition based on the overlapping proportion, step S329 is executed.
Step S328: judging that the current element to be checked is matched with the current intersected element in position;
step S329: and judging that the current element to be checked is not matched with the current intersected element in position.
If the intersection elements that have not been checked still exist in the intersection element set after the steps S328 and S329 are completed, the process may return to step S324 to check the next intersection element.
In this embodiment, each intersecting element in the intersecting element set is a reference element screened from the reference element set, and the matching relationship between the current element to be checked and the current intersecting element is determined, which may be regarded as determining the matching relationship between the current element to be checked and the current reference element.
Third embodiment
Referring to fig. 5, an embodiment of the present invention provides a method for comparing and checking geographic information element positions based on overlapping proportions, where the method includes:
step S400: acquiring a to-be-searched element set and a reference element set;
step S410: acquiring current elements to be checked from the element set to be checked;
step S420: acquiring a reference element matched with the current element to be checked in position in the reference element set according to a position matching condition based on an overlapping proportion;
step S430: if the reference element set does not have a reference element matched with the position of the current element to be checked, judging that the current element to be checked is a redundant element;
step S440: and if the reference element set has a reference element which is not matched with any element to be detected in the element set to be detected in position, judging that the reference element is a missing element.
In this embodiment, the specific implementation of the steps S400, S410, and S420 may refer to the steps S200, S210, and S220 in the first embodiment, and the specific implementation of the steps S430 and S440 may refer to the steps S330 and S340 in the second embodiment, which are not described herein again.
Referring to fig. 6, in the present embodiment, specifically, the step S420 may include the following sub-steps:
step S422: acquiring an intersecting element set which is geometrically intersected with the current element to be checked in the reference element set;
in this embodiment, each element in the element set to be checked and the reference element set has a geometric position, an intersecting element set that geometrically intersects the current element to be checked in the reference element set is obtained, and the current element to be checked and the intersecting elements are considered to have mutually overlapping parts on a geometric path, that is, the possibility of position matching exists. If there is a part where the intersecting element and the current element to be examined overlap each other on the geometric path to some extent, the intersecting element and the current element to be examined may be considered as being position-matched. In this embodiment, the certain degree is a position matching condition based on the overlap ratio.
Step S424: acquiring the position overlapping proportion of each intersecting element in the intersecting element set and the current element to be checked to obtain the result geometry of the overlapping proportion;
in this embodiment, the method for obtaining the position overlap ratio may be to respectively obtain a position information function of each intersecting element in the intersecting element set and the current element to be checked, further obtain the position overlap ratio of each intersecting element and the current element to be checked by respectively calculating the similarity of the position information function of each intersecting element and the current element to be checked, establish a correlation function according to the intersecting elements and the corresponding position overlap ratios thereof, and finally establish an overlap ratio result geometry including all position overlap ratio values related to the current element to be checked.
Step S426: judging whether an overlapping proportion value meeting the overlapping proportion-based position matching condition exists in the overlapping proportion result geometry;
in this embodiment, the position matching condition based on the overlap ratio may be a given threshold, and if the position overlap ratio value existing in the overlap ratio result geometry is greater than the given threshold, the position matching condition based on the overlap ratio is satisfied. In particular, the given threshold value ranges from 0.8 to 0.9 in this embodiment. The size of the given threshold as the overlap ratio-based position matching condition may be adjusted as required, depending on the setting requirements of the criteria for position matching in practical implementations.
If an overlap ratio value satisfying a position matching condition based on an overlap ratio exists in the overlap ratio result geometry, performing step S427;
if there is no overlap ratio value satisfying the overlap ratio-based position matching condition in the overlap ratio result geometry, step S428 is executed.
Step S427: judging the position matching of the current element to be checked and the intersecting element corresponding to the overlapping proportion value meeting the position matching condition based on the overlapping proportion;
step S428: judging the current element to be checked as a redundant element;
if no value in the overlap ratio result geometry meets the overlap ratio-based position matching condition, it indicates that the positions of the current element to be checked and any element in the reference element set cannot meet the matching criterion, that is, the current element to be checked is an extra element.
In this embodiment, each intersecting element in the intersecting element set is a reference element screened from the reference element set, and the matching relationship between the current element to be checked and the intersecting element corresponding to each overlap ratio value is determined, which may be considered as determining the matching relationship between the current element to be checked and the reference element corresponding to each overlap ratio value.
Fourth embodiment
Referring to fig. 7, the present embodiment provides a geographic information element position comparison checking apparatus 500 based on an overlap ratio, which is operated in an electronic device. The geographic information element position comparison checking device 500 based on the overlapping proportion comprises an element set acquisition module 510, an element to be checked acquisition module 520 and a position matching module 530.
An element set obtaining module 510, configured to obtain an element set to be checked and a reference element set;
a to-be-checked element obtaining module 520, configured to obtain a current to-be-checked element from the to-be-checked element set;
a position matching module 530, configured to obtain, according to a position matching condition based on an overlap ratio, a reference element in the reference element set that matches the position of the current element to be checked.
In summary, according to the geographic information element position comparison inspection method and device based on the overlap ratio, each element in the element set to be inspected is subjected to traversal inspection by acquiring the current element to be inspected from the element set to be inspected; and then comparing the current element to be checked with each reference element in the reference element set according to the position matching condition based on the overlapping proportion, so as to obtain the reference element matched with the current element to be checked in position in the reference element set. When the element to be checked and the reference element meet the position matching condition based on the overlapping proportion, the element to be checked and the reference element are considered to be in position matching, and whether the element in the geographic information result data meets the position standard or not is rapidly and effectively checked, so that the element which does not meet the standard can be found in time and is subjected to subsequent processing.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, the functional modules in the embodiments of the present invention may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes. It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (9)
1. A geographic information element position comparison checking method based on overlapping proportion is characterized by comprising the following steps:
acquiring an element set to be checked and a reference element set, wherein the element set to be checked and the reference element set comprise elements of a plurality of point types, line types and surface types;
acquiring current elements to be checked from the element set to be checked;
acquiring an intersecting element set which is geometrically intersected with the current element to be checked in the reference element set;
acquiring a current intersecting element from the intersecting element set;
acquiring the position overlapping proportion of the current intersecting element and the current element to be checked;
and if the position overlapping proportion of the current intersecting element and the current element to be checked meets the position matching condition based on the overlapping proportion, judging that the position of the current element to be checked is matched with the position of the current intersecting element.
2. The method of claim 1, further comprising:
and if the reference element set does not have the reference element matched with the position of the current element to be checked, judging that the current element to be checked is a redundant element.
3. The method of claim 1, further comprising:
and if the reference element set has a reference element which is not matched with any element to be detected in the element set to be detected in position, judging that the reference element is a missing element.
4. The method of claim 1, further comprising:
and if the position overlapping proportion of the current intersecting element and the current element to be checked does not meet the position matching condition based on the overlapping proportion, judging that the position of the current element to be checked is not matched with the position of the current intersecting element.
5. The method according to claim 1, wherein the obtaining of the reference elements in the reference element set that match the position of the current element to be checked according to the overlapping proportion-based position matching condition comprises:
acquiring an intersecting element set which is geometrically intersected with the current element to be checked in the reference element set;
acquiring the position overlapping proportion of each intersecting element in the intersecting element set and the current element to be checked to obtain the result geometry of the overlapping proportion;
and if the overlap proportion result geometry has an overlap proportion value meeting the position matching condition based on the overlap proportion, judging that the position of the element to be checked currently is matched with the position of the intersecting element corresponding to the overlap proportion value meeting the position matching condition based on the overlap proportion.
6. The method of claim 5, further comprising:
and if the overlap proportion result geometry does not have an overlap proportion value meeting the position matching condition based on the overlap proportion, judging that the current element to be checked is a redundant element.
7. The method according to any one of claims 3 to 6, wherein the overlap ratio-based location matching condition is a given threshold, and if the overlap ratio is greater than the given threshold, the overlap ratio-based location matching condition is satisfied.
8. The method of claim 7, wherein the given threshold value ranges from 0.8 to 0.9.
9. An overlapping proportion-based geographic information element position comparison checking device, which is characterized by comprising:
the element set acquisition module is used for acquiring an element set to be checked and a reference element set, and the element set to be checked and the reference element set comprise elements of a plurality of point types, line types and face types;
the element to be checked acquisition module is used for acquiring the current element to be checked from the element to be checked set;
the position matching module is used for acquiring an intersecting element set which is geometrically intersected with the current element to be checked in the reference element set; acquiring a current intersecting element from the intersecting element set; acquiring the position overlapping proportion of the current intersecting element and the current element to be checked; and if the position overlapping proportion of the current intersecting element and the current element to be checked meets the position matching condition based on the overlapping proportion, judging that the position of the current element to be checked is matched with the position of the current intersecting element.
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