CN101908069A - Device and method for converting optional area electronic marine map file format - Google Patents
Device and method for converting optional area electronic marine map file format Download PDFInfo
- Publication number
- CN101908069A CN101908069A CN 201010247836 CN201010247836A CN101908069A CN 101908069 A CN101908069 A CN 101908069A CN 201010247836 CN201010247836 CN 201010247836 CN 201010247836 A CN201010247836 A CN 201010247836A CN 101908069 A CN101908069 A CN 101908069A
- Authority
- CN
- China
- Prior art keywords
- file
- chart
- electronic
- sea chart
- sea
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Processing Or Creating Images (AREA)
Abstract
The invention provides a device and a method for converting an optional area electronic marine map file format. The device comprises an electronic marine map scaling display module, an electronic marine map optional area selecting module, an electronic marine map layer selecting module and an electronic marine map element information reading and writing module, wherein the electronic marine map scaling display module is used for amplifying and reducing an electronic marine map, obtaining an electronic marine map converting relation structure and providing an electronic marine map converting parameter; the electronic marine map optional area selecting module is used for obtaining the longitude and latitude information of an electronic marine map area to be converted; the electronic marine map layer selecting module is used for recognizing selected area electronic marine map layer element information and displaying the map layer element information of an appointed electronic marine map area; and the electronic marine map element information reading and writing module is used for reading an electronic marine map file in a custom format by the electronic marine map converting parameter provided by the electronic marine map scaling module, extracting map layer element information meeting the requirement and writing the extracted map layer element information into the file according to a standard marine map file format. The invention realizes the aim that the electronic marine map display can be automatically changed along with the update of a marine map display scale and meets the requirement of unifying the marine map file format in the electronic marine map.
Description
Technical field
The invention belongs to the geographic information system technology field.What relate to is a kind of electronic chart file layout conversion equipment and method.
Background technology
Fast development along with computer technology, graph and image processing technology. the electronic chart file layout of more and more representing with digital form occurred, it has characteristics such as feature richness, dirigibility height.Therefore development rapidly and application widely in modern hydrographic charting, have been obtained.Continuous appearance along with Geographic Information System (GIS) Software Development Platform and instrument, different units may adopt different development platforms, even same unit also may adopt a plurality of development platforms, and just there is the problem of changing between the different graphic formatted data in this.
Current, the electronic chart data have multiple storage format, because the difference of sea chart file memory format, the sea chart file under the different electronic chart display systems can't be realized mutual transplanting, like this electronic chart display system development difficulty and the expense of Jia Daing.Existing electronic chart file layout, integrated spatial data sea chart file layout is arranged, as text sea chart file layout (.txt file layout), .dat sea chart file layout etc. is arranged, the sea chart file of these forms is with spatial data and the integrated storage of attribute data, the management of data file is very loaded down with trivial details with retrieval, uses very inconvenience, and can't guarantee the consistance and the integrality of data.Another kind of sea chart file layout is the Shapefile file layout of standard, and the Shapefile file is the GIS file system format file that U.S. environment system research institute (ESRI) is developed, and is the vector data file of industrial standard.
The Shapefile form is most widely used in the electronic chart display system of reality as a kind of electronic chart file layout of standard.It adopts pure file mode management spatial data.This mode is independent body, the management and retrieve separately of geometric data and attribute data, sets up connection between them by identifier.Because the electronic chart data of Shapefile form adopt the file system storage usually, so well guaranteed safety of data, consistance, integrality. and the data access efficiency height.
Current, domestic associated companies and scientific research institution all are that whole integrated spatial data files is converted to the shapefile file, and can't guarantee the harmless conversion of data in the conversion of research from integrated spatial data files to the shapefile file layout.As " the data deriving method research of Shapefile graphic file " of Hu Shunquan, Tan Xiangnong, " the research " of Liu Wei, Zhang Hairong etc. based on GML from the DXF file to the Shape file layout change-over method.
Summary of the invention
The object of the present invention is to provide a kind of electronic Chart Display that can realize to change automatically along with the renewal of sea chart displaying ratio chi, can be along with frame selects the variation of sea chart scope and the automatic target sea chart file that will change of renewal, from non-standard sea chart file, extract the sea chart key element that meets the demands in real time accurately, and the sea chart key element of extracting is converted to standard sea chart file, satisfy the device of the optional area electronic marine map file format conversion of sea chart file layout unified demand in the electronic chart.The present invention also aims to provide a kind of method of optional area electronic marine map file format conversion.
The object of the present invention is achieved like this:
The device of optional area electronic marine map file format conversion of the present invention comprises electronic chart convergent-divergent display module, the optional regional frame modeling of electronic chart piece, electronic chart figure layer selection module, electronic chart element information module for reading and writing; Electronic chart convergent-divergent display module carries out the amplification of sea chart and dwindles, and the scope of commentaries on classics figure time-frame choosing is provided, and changes, obtains electronic chart transformational relation structure automatically in the process of amplifying and dwindling, and the electronic chart conversion parameter is provided; The optional regional frame modeling of electronic chart piece obtains the scope in the conversion electron sea chart zone of wanting, i.e. latitude and longitude information; Electronic chart figure layer is selected module, and identification appointed area electronic chart figure layer element information shows the figure layer element information of specifying the electronic chart zone, and the selectivity conversion demand of electronic chart figure layer is provided; Electronic chart element information module for reading and writing, the electronic chart conversion parameter that provides by the electronic chart Zoom module, read integrated electronic sea chart file, commentaries on classics figure scope according to the frame choosing, extract satisfactory figure layer element information, and the figure layer element information that will extract writes in the file by standard sea chart file layout.
The device of optional area electronic marine map file format conversion of the present invention can also comprise some features like this:
1, described electronic chart element information module for reading and writing further comprises and obtains the best chart name module in appointed area, obtains sea chart figure layer module, reads non-standard sea chart file, writes standard sea chart file module; Obtain the best chart name module in appointed area, show the sea chart longitude and latitude scope of scaling and frame choosing, select the best sea chart file sea chart file layout converting system of powering to change, be provided for the parameter of changing simultaneously according to different sea charts; Obtain sea chart figure layer module, obtain optional sea chart zone figure layer title, for the selectivity conversion of sea chart file; Read non-standard sea chart file, write standard sea chart file module, read the sea chart figure layer element information that meets the demands, and write in the corresponding figure layer file by standard sea chart file layout.
2, individual packages series of algorithms in the described electronic chart convergent-divergent display module selects best sea chart file as being converted file automatically, adjusts transfer algorithm automatically according to the different sea chart file that will change simultaneously.
3, described electronic chart figure layer is selected individual packages series of algorithms in the module, with the sea chart figure layer of automatic identification institute favored area.
4, described electronic chart element information module for reading and writing provides a unified interface to the user.
Optional area electronic marine map file format conversion method of the present invention is:
(1) shows the sea chart step of updating, when sea chart amplifies and dwindles, change best sea chart file automatically according to different displaying ratio chis;
(2) obtain optimum target sea chart file step, when changeing picture frame choosing appointment sea chart zone, according to sea chart element information amount in the selection range in current demonstration chart scale, selection range, the sea chart file, select best sea chart file automatically as the file destination that will change;
(3) judge sea chart key element step in the selection range, when the sea chart zone is specified in the frame choosing, according to key element type selecting algorithms of different in the selection range, to determine a certain key element whether in selection range;
(4) generate shapefile file step, the satisfactory sea chart key element conversion generation standard sea chart file shaprfile file that from non-standard sea chart file, extracts.
Described generation shapefile file step further comprises:
Shapefile coordinate file (.shp) generates step, and the tissue of the sea chart key element of extracting being pressed coordinate file (.shp) generates coordinate file;
Shapefile index file (.shx) generates step, and the tissue of the sea chart key element of extracting being pressed index file (.shx) generates index file;
Shapefile property file (.dbf) generates step, and the tissue of the sea chart key element of extracting being pressed coordinate file (.dbf) generates property file.
The present invention is on the electronic chart data organizational structure basis of serious analysis integrated electronic sea chart file and Shapefile form, study and proposed the file conversion of integrated electronic sea chart is become the method for standard Shapefile sea chart file, with Windows is platform, under the VC.NET environment, but designed favored area sea chart file layout converting system, realized from integrated spatial data files, extracting the sea chart key element of arbitrary region in the sea chart indication range, and with the key element of extracting harmless convert the Shapefile stored in file format to, realized of the conversion of the integrated spatial data files in optional zone to standard Shapefile sea chart file layout.
Compared with prior art, the device and method of optional area electronic marine map file format conversion provided by the invention, by introducing the thought that self-adaptation is adjusted, realized that electronic Chart Display can change automatically along with the renewal of sea chart displaying ratio chi, can be along with frame selects the variation of sea chart scope and the automatic target sea chart file that will change of renewal, from non-standard sea chart file, extract the sea chart key element that meets the demands in real time accurately, and the sea chart key element of extracting is converted to standard sea chart file, satisfy sea chart file layout unified demand in the electronic chart, reached practical function.
Description of drawings
Fig. 1 is the system architecture synoptic diagram of optional area electronic marine map file format conversion of the present invention;
Fig. 2 calls the workflow synoptic diagram for system module of the present invention;
Fig. 3 is the method flow diagram of optional area electronic marine map file format conversion of the present invention;
Fig. 4 is for obtaining the concrete implementing procedure figure of optimum target sea chart file step in the inventive method;
Fig. 5 selects the interface synoptic diagram in sea chart zone for frame of the present invention;
The interface synoptic diagram that Fig. 6 obtains, is provided with for electronic chart figure layer of the present invention.
Embodiment
For example the present invention is done description in more detail below in conjunction with accompanying drawing:
The present invention is for setting up appointed area electronic chart file layout converting system, being implemented in electronic Chart Display amplifies when dwindling, call the synchronous form of upgrading of sea chart of demonstration, when the sea chart zone is specified in the frame choosing, realize the automatic renewal of switch target sea chart file, reach under the unmanned interference situation the adaptive variation of switch target sea chart file with the electronic chart element information of abundant extraction, transform frame favored area, and write the sea chart key element of extracting as standard sea chart file.
Fig. 1 shows the primary structure of appointed area of the present invention electronic chart file layout converting system, this system comprises: electronic chart convergent-divergent display module 10, be used for the amplification of electronic chart display system sea chart and dwindle, the scope of commentaries on classics figure time-frame choosing is provided, and in the process of amplifying and dwindling, change, obtain electronic chart transformational relation structure automatically, the electronic chart conversion parameter is provided; Electronic chart appointed area frame modeling piece 11 is used to obtain the scope in the conversion electron sea chart zone of wanting, and is latitude and longitude information in the present invention; Electronic chart figure layer is selected module 12, is used to discern appointed area electronic chart figure layer element information, shows the figure layer element information of specifying the electronic chart zone, and the selectivity conversion demand of electronic chart figure layer is provided; Electronic chart element information module for reading and writing 13, nucleus module as this electronic chart file layout converting system, the electronic chart conversion parameter that provides by front electronic chart Zoom module 10, read integrated electronic sea chart file, the optional scope that provides according to electronic chart appointed area frame modeling piece 11, extract satisfactory figure layer element information, and the figure layer element information that will extract write in the file by standard sea chart file layout, finish the electronic chart file layout conversion of appointed area.Electronic chart element information module for reading and writing 13 further comprises: obtain the best chart name module 131 in appointed area, be used for showing the sea chart longitude and latitude scope of scaling and frame choosing according to different sea charts, select the best sea chart file sea chart file layout converting system of powering to change, be provided for the parameter of changing simultaneously; Obtain sea chart figure layer module 132, be used to obtain optional sea chart zone figure layer title, for the selectivity conversion of sea chart file; Read non-standard sea chart file, write standard sea chart file module 133, be used to read the sea chart figure layer element information that meets the demands, and write in the corresponding figure layer file by standard sea chart file layout.
The present invention also further provides the method for the optional area electronic marine map file format conversion of using said system, and Fig. 3 has demonstrated the idiographic flow of this method, and the system and method for optional area electronic marine map file format conversion of the present invention comprises step:
S10 shows the sea chart step of updating, is used for changing best sea chart file automatically according to different displaying ratio chis when sea chart amplifies and dwindles;
S1l, obtain optimum target sea chart file step, when being used to change picture frame choosing appointment sea chart zone,, select best sea chart file automatically as the file destination that will change according to sea chart element information amount in the selection range in current demonstration chart scale, selection range, the sea chart file;
Whether S12 judges sea chart key element step in the selection range, when being used for the frame choosing and specifying the sea chart zone, according to key element type selecting algorithms of different in the selection range, to determine a certain key element in selection range;
S13 generates shapefile file step, is used for the satisfactory sea chart key element conversion generation standard sea chart file shaprfile file that extracts from non-standard sea chart file.
Above-mentioned one-tenth shapefile file step S13 further comprises:
S131, Shapefile coordinate file (.shp) generates step, and the tissue of the sea chart key element of extracting being pressed coordinate file (.shp) generates coordinate file;
S132, Shapefile index file (.shx) generates step, and the tissue of the sea chart key element of extracting being pressed index file (.shx) generates index file;
S133, Shapefile property file (.dbf) generates step, and the tissue of the sea chart key element of extracting being pressed coordinate file (.dbf) generates property file.
Fig. 5, Fig. 6 have schematically represented several steps crucial in the optional area electronic marine map file format transfer process.What Fig. 5 showed is the interface that sea chart file layout transfer process center selects the sea chart zone, and wherein Hong Se rectangular area is the sea chart regional extent of frame choosing, and the sea chart key element in this sea chart zone will be extracted, and this regional sea chart of demonstration is wanted the sketch map layer in Fig. 6; Fig. 6 shows is that the figure layer to the sea chart key element extracted is provided with the interface in the sea chart file layout transfer process, wherein the sea chart key element is divided into 20 figure layers altogether, this sea chart of expression frame favored area that check box is chosen wants the sketch map layer to exist, can want the sketch map layer to remove on the sea chart of choosing as required, this figure layer need conversion in the expression sea chart format conversion process; This sea chart wants the sketch map layer not exist in the expression frame favored area of not choosing, and while check box at this moment is a gray states, represents that this sea chart wants the sketch map layer not optional.Through after these are provided with, can want the sketch map layer to write in the Shapefile file on the sea chart of selecting in the sea chart format conversion process.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (7)
1. the device of an optional area electronic marine map file format conversion is characterized in that: comprise electronic chart convergent-divergent display module, the optional regional frame modeling of electronic chart piece, electronic chart figure layer selection module, electronic chart element information module for reading and writing; Electronic chart convergent-divergent display module carries out the amplification of sea chart and dwindles, and the scope of commentaries on classics figure time-frame choosing is provided, and changes, obtains electronic chart transformational relation structure automatically in the process of amplifying and dwindling, and the electronic chart conversion parameter is provided; The optional regional frame modeling of electronic chart piece obtains the scope in the conversion electron sea chart zone of wanting, i.e. latitude and longitude information; Electronic chart figure layer is selected module, and identification appointed area electronic chart figure layer element information shows the figure layer element information of specifying the electronic chart zone, and the selectivity conversion demand of electronic chart figure layer is provided; Electronic chart element information module for reading and writing, the electronic chart conversion parameter that provides by the electronic chart Zoom module, read integrated electronic sea chart file, commentaries on classics figure scope according to the frame choosing, extract satisfactory figure layer element information, and the figure layer element information that will extract writes in the file by standard sea chart file layout.
2. the device of optional area electronic marine map file format according to claim 1 conversion is characterized in that: described electronic chart element information module for reading and writing further comprises and obtains the best chart name module in appointed area, obtains sea chart figure layer module, reads non-standard sea chart file, writes standard sea chart file module; Obtain the best chart name module in appointed area, show the sea chart longitude and latitude scope of scaling and frame choosing, select the best sea chart file sea chart file layout converting system of powering to change, be provided for the parameter of changing simultaneously according to different sea charts; Obtain sea chart figure layer module, obtain optional sea chart zone figure layer title, for the selectivity conversion of sea chart file; Read non-standard sea chart file, write standard sea chart file module, read the sea chart figure layer element information that meets the demands, and write in the corresponding figure layer file by standard sea chart file layout.
3. the device of optional area electronic marine map file format conversion according to claim 2, it is characterized in that: individual packages series of algorithms in the described electronic chart convergent-divergent display module, automatically select best sea chart file as being converted file, adjust transfer algorithm automatically according to the different sea chart file that will change simultaneously.
4. the device of optional area electronic marine map file format according to claim 3 conversion is characterized in that: described electronic chart figure layer is selected individual packages series of algorithms in the module, with the sea chart figure layer of automatic identification institute favored area.
5. the device of optional area electronic marine map file format conversion according to claim 4, it is characterized in that: described electronic chart element information module for reading and writing provides a unified interface to the user.
6. optional area electronic marine map file format conversion method is characterized in that:
(1) shows the sea chart step of updating, when sea chart amplifies and dwindles, change best sea chart file automatically according to different displaying ratio chis;
(2) obtain optimum target sea chart file step, when changeing picture frame choosing appointment sea chart zone, according to sea chart element information amount in the selection range in current demonstration chart scale, selection range, the sea chart file, select best sea chart file automatically as the file destination that will change;
(3) judge sea chart key element step in the selection range, when the sea chart zone is specified in the frame choosing, according to key element type selecting algorithms of different in the selection range, to determine a certain key element whether in selection range;
(4) generate shapefile file step, the satisfactory sea chart key element conversion generation standard sea chart file shaprfile file that from non-standard sea chart file, extracts.
7. optional area electronic marine map file format conversion method according to claim 6 is characterized in that described generation shapefile file step further comprises:
Shapefile coordinate file (.shp) generates step, and the tissue of the sea chart key element of extracting being pressed coordinate file (.shp) generates coordinate file;
Shapefile index file (.shx) generates step, and the tissue of the sea chart key element of extracting being pressed index file (.shx) generates index file;
Shapefile property file (.dbf) generates step, and the tissue of the sea chart key element of extracting being pressed coordinate file (.dbf) generates property file.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102478363A CN101908069B (en) | 2010-08-09 | 2010-08-09 | Device and method for converting optional area electronic marine map file format |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102478363A CN101908069B (en) | 2010-08-09 | 2010-08-09 | Device and method for converting optional area electronic marine map file format |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101908069A true CN101908069A (en) | 2010-12-08 |
| CN101908069B CN101908069B (en) | 2012-07-11 |
Family
ID=43263529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102478363A Expired - Fee Related CN101908069B (en) | 2010-08-09 | 2010-08-09 | Device and method for converting optional area electronic marine map file format |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101908069B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103164516A (en) * | 2013-03-01 | 2013-06-19 | 无锡挪瑞电子技术有限公司 | Electronic chart data conversion device and electronic chart data conversion method |
| CN105981025A (en) * | 2014-12-01 | 2016-09-28 | 哈尔滨工程大学 | Actually-measured marine environment data assimilation method based on sequence recursive filtering three-dimensional variation |
| CN107885773A (en) * | 2017-09-29 | 2018-04-06 | 深圳高速工程顾问有限公司 | Data processing method and device based on GIS-Geographic Information System |
| CN116894000A (en) * | 2023-05-29 | 2023-10-17 | 中国船舶集团有限公司第七〇七研究所 | Information conversion method, device, electronic equipment and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101324896A (en) * | 2008-07-24 | 2008-12-17 | 中国科学院计算技术研究所 | Method for storing and searching vector data and management system thereof |
| WO2009027788A2 (en) * | 2007-08-31 | 2009-03-05 | Furuno Electric Co., Ltd. | Chart display device and method for displaying chart |
| CN101783010A (en) * | 2009-07-24 | 2010-07-21 | 上海海事大学 | System and method for generating electronic chart pictures capable of being seamlessly spliced |
-
2010
- 2010-08-09 CN CN2010102478363A patent/CN101908069B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009027788A2 (en) * | 2007-08-31 | 2009-03-05 | Furuno Electric Co., Ltd. | Chart display device and method for displaying chart |
| CN101324896A (en) * | 2008-07-24 | 2008-12-17 | 中国科学院计算技术研究所 | Method for storing and searching vector data and management system thereof |
| CN101783010A (en) * | 2009-07-24 | 2010-07-21 | 上海海事大学 | System and method for generating electronic chart pictures capable of being seamlessly spliced |
Non-Patent Citations (3)
| Title |
|---|
| 《中国航海》 20060930 赵玉新等 电子海图矢量数据交换标准研究动态 第7-11页 1-7 , 第3期 2 * |
| 《应用科技》 20100630 刘厂等 国际标准电子海图显示平台组件化研究与实现 第50-55页 1-7 第37卷, 第6期 2 * |
| 《微计算机信息》 20080725 郝燕玲等 Shapefile格式电子海图数据集成存储研究 第26-28页 1-7 第24卷, 第7-3期 2 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103164516A (en) * | 2013-03-01 | 2013-06-19 | 无锡挪瑞电子技术有限公司 | Electronic chart data conversion device and electronic chart data conversion method |
| CN103164516B (en) * | 2013-03-01 | 2017-04-05 | 无锡挪瑞电子技术有限公司 | Electronic chart data conversion equipment and electronic chart data conversion method |
| CN105981025A (en) * | 2014-12-01 | 2016-09-28 | 哈尔滨工程大学 | Actually-measured marine environment data assimilation method based on sequence recursive filtering three-dimensional variation |
| CN105981025B (en) * | 2014-12-01 | 2018-06-08 | 哈尔滨工程大学 | Actual measurement marine environment data assimilation method based on sequence recursive filtering three-dimensional variation |
| CN107885773A (en) * | 2017-09-29 | 2018-04-06 | 深圳高速工程顾问有限公司 | Data processing method and device based on GIS-Geographic Information System |
| CN116894000A (en) * | 2023-05-29 | 2023-10-17 | 中国船舶集团有限公司第七〇七研究所 | Information conversion method, device, electronic equipment and storage medium |
| CN116894000B (en) * | 2023-05-29 | 2023-12-08 | 中国船舶集团有限公司第七〇七研究所 | Information conversion method, device, electronic equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101908069B (en) | 2012-07-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112528977B (en) | Target detection method, target detection device, electronic equipment and storage medium | |
| CN101853246B (en) | Method and device for converting document format | |
| JP4835134B2 (en) | Image display device, image display method, and program | |
| CN103106272B (en) | Interest point information acquisition methods and device | |
| CN110645986A (en) | Positioning method and device, terminal and storage medium | |
| CN101908069B (en) | Device and method for converting optional area electronic marine map file format | |
| US20120162252A1 (en) | Image output apparatus and image output control method | |
| CN103020250A (en) | Map display method and device of geographic information system (GIS) | |
| CN104657934A (en) | Image data processing method and device | |
| CN102375987A (en) | Image processing device and image feature vector extracting and image matching method | |
| CN102831605B (en) | Method for rapidly visualizing multi-scale image segmentation results for large images | |
| US20180039715A1 (en) | System and method for facilitating an inspection process | |
| CN103327246A (en) | Multimedia shooting processing method, device and intelligent terminal | |
| KR101768914B1 (en) | Geo-tagging method, geo-tagging apparatus and storage medium storing a program performing the method | |
| CN104182498A (en) | Electronic chart engine under Android platform and electronic chart display method without time delay under Android platform | |
| US20110125803A1 (en) | Usability evaluation apparatus, usability evaluation method, and program | |
| CN107729511B (en) | Customizable geographic information data rectangular framing method | |
| JP2007264268A (en) | Position display device | |
| KR20120075626A (en) | Apparatus and method for processing electric navigational chart in web-based service | |
| CN112685998A (en) | Automatic labeling method, device, equipment and readable storage medium | |
| KR20120110941A (en) | A method for expressing whether of virtual world and an apparatus thereof | |
| CN111505738A (en) | Method and equipment for predicting meteorological factors in numerical weather forecast | |
| KR101768913B1 (en) | Method of partitioning a data including geographical information, apparatus performing the same and storage medium storing a program performing the same | |
| CN116091715A (en) | POI (point of interest) point aggregation method based on three-dimensional GIS engine | |
| CN102495902B (en) | Method and system for simultaneously realizing ETL (Extract Transform and Load) process of spatial data and attribute data |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20180809 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |