CN104899329A - Method for carrying out parcel four-direction searching by adopting minimum outer rectangular frame - Google Patents
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- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/29—Geographical information databases
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Abstract
The invention discloses a method for carrying out parcel four-direction searching by adopting a minimum outer rectangular frame. The method comprises the following steps: by taking the parcel as a base, finding four points, closest to the four angle points of the minimum outer rectangular frame, on the parcel as solstitial points; then, enabling every two points in the clockwise direction of the four solstitial points to form a straight line, and outwards extending the straight line to find four-direction buffer distances to form a polygon, wherein the parcel which is included in the polygon or crossed with the polygon as the parcel solstitial points in the direction; combining a computer technology with a geographic information technology to form a parcel four-direction intelligent searching technology. The whole technology is applied, so that the parcel four-direction searching efficiency and the parcel four-direction searching precision are improved, and the time and the labor cost are effectively reduced.
Description
Technical field
The present invention relates to the field such as computer technology, Fundamental Geographic Information System industry technology, specifically, is a kind ofly adopt minimum outer rectangle frame to carry out ancestor ground four to the method for searching.
Background technology
Zong Di: refer to the blind area of ownership boundary line composition is that earth surface one piece has and determines border, has the soil determining ownership.
If the land owner of neighbours or applying unit or Personal name, to the handing-over boundary line referring to orientation, four, a ground and adjacent ground, are generally filled in ancestor ground four, when being other marker such as road, irrigation canals and ditches adjacent, fill in corresponding title.
Require: a selected ground as this ground, the ancestor be adjacent as adjacent ancestor, then adjacent ancestor ownership title is on the ground filled in four orientation (being generally positive north, due east, due south, Zheng Xi) on this ground respectively, namely complete ancestor ground four to.
And existing ancestor ground four is to searching the pattern adopted based on artificial cognition, namely staff is by examine on the spot, then according to residing direction with selecting the ancestor adjacent with this ground as this ground four to.
Under the pattern of artificial cognition, the relatively ancestor ground of rule, and adjacent ancestor ground also relatively rule when, four can identify correct to identification substantially; Relatively irregular ancestor ground, and adjacent ancestor ground is also in relatively irregular situation, and everyone may be variant to its identification, and indivedual direction there will be the result artificially can not approved.
Summary of the invention
The object of the invention is to design and a kind ofly adopt minimum outer rectangle frame to carry out ancestor ground four to the method for searching, by computer technology be combined with geographical information technology, and a kind of ancestor's ground four to intellectual search technology formed, the application of whole technology not only improves ancestor ground four to the efficiency of searching and degree of accuracy, and effectively saves time and human cost.
The present invention is achieved through the following technical solutions: a kind ofly adopt minimum outer rectangle frame to carry out ancestor ground four to the method for searching, based on this ground, by the minimum outer rectangle frame in this ground, this ground is found to be to point from four points that minimum outer rectangle frame four angle points are nearest, then by 4 to point in the direction of the clock every two to point form straight line stretching out search four to buffer distance form polygon, be this direction ancestor ground four with being contained in ancestor in described polygon or crossing with described polygon to.
Further to better implement the present invention, described by 4 to point in the direction of the clock every two to point form straight line stretching out search four to buffer distance formed polygonal concrete grammar for: by between two to putting limit based on the straight line that forms, then outside for base side translation is searched four to buffer distance after form buffer edge, then the end points of described buffer edge and described base side is connected and composed polygon.
Further to better implement the present invention, described " based on this ground; by the minimum outer rectangle frame in this ground; find this ground from nearest four points of minimum outer rectangle frame four angle points for point; then by 4 to point in the direction of the clock every two to point form straight line and stretch out search four to buffer distance form polygon, be this direction ancestor ground four with being contained in ancestor in described polygon or crossing with described polygon to " for utilizing computer program to complete ancestor ground four to searching by following treatment scheme:
1) plot hum pattern is implanted in the database of computer system;
2) the computer system plot hum pattern recalled in database starts ancestor ground four to searching;
3) this ground is selected;
4) adopt minimum rectangle to estimate method to intersect with carrying out ancestor;
5) determine direction and buffer distance is set;
6) ancestor ground four to rule is formulated;
7) determine ancestor ground four to and terminate to search ancestor ground four to.
Further to better implement the present invention, described step 3) with selecting this concrete grammar is: through step 2) after, computer system finds out the plot on four to ancestor to be found ground automatically as this ground.
Further to better implement the present invention, described 4) adopt minimum rectangle to estimate the concrete grammar that method intersects with carrying out ancestor to comprise the steps:
4-1) calculate the minimum outer rectangle frame on this ground;
4-2) the upper left angle point of minimum outer rectangle frame and bottom right angle point are linked to be straight line, lower-left angle point and the upper right angle point of minimum outer rectangle frame are linked to be straight line;
4-3) calculate and with determining this ancestor with minimum outer rectangle frame diagonal line joining for point.
Further to better implement the present invention, described 5) direction is determined and the concrete grammar arranging buffer distance comprises the following steps:
5-1) by clockwise or counterclockwise will between two to putting connection, form four to the direction on this ground;
5-2) arrange search four to buffer distance;
5-3) between two to point between the outside translation of line search four to buffer distance, and and this between two to point between line form polygon;
5-4) calculate ancestor ground that is crossing with polygon on each direction or that be included in polygon.
Further to better implement the present invention, at described step 5-1) in, four to the direction forming this ground is specially: the region between the diagonal line intersection point of minimum outer rectangle frame and north orientation two to point for the north to; Region between the diagonal line intersection point of minimum outer rectangle frame and south orientation two to point be southern to; The diagonal line intersection point of minimum outer rectangle frame and west to two to point between region be west to; Region between the diagonal line intersection point of minimum outer rectangle frame and east orientation two to point be east to.
Further to better implement the present invention, in described step 6), ancestor ground four to rule is specially determines four to direction according to clockwise rule.
Further to better implement the present invention, described step 7) determine ancestor ground four to and terminate to search ancestor ground four to being specially: by with this ownership name on the crossing ancestor ground direction four that is referred to as this ground to, complete the ancestor ground four on this this ground of block to searching.
Further, to better implement the present invention, search described in four to buffer distance be 2-4 rice.
The present invention compared with prior art, has the following advantages and beneficial effect:
The present invention by computer technology be combined with geographical information technology, and a kind of ancestor ground four to the intellectual search technology formed, the application of whole technology not only improves ancestor ground four to the efficiency of searching and degree of accuracy, and effectively saves time and human cost.
The present invention adopts Computer Automatic Recognition technology, effectively can improve ancestor ground four to the precision of searching, reduce artificial operating cost.
Accompanying drawing explanation
Fig. 1 is a kind of plot figure of relatively rule.
Fig. 2 is a kind of schematic diagram of irregular plot.
Fig. 3 adopts the present invention to one piece carrying out four to the schematic diagram searched.
Fig. 4 is schematic flow sheet of the present invention.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Under the pattern of artificial cognition, as shown in Figure 1, the relatively ancestor ground of rule, and adjacent ancestor ground also relatively rule when, four substantially can identify to identification correct, using Zhou Taicheng as this ancestor, then it is four most: east: Lu Fenhua, south: Wang Yonghuai, west: Chen Jinfu, north: Zhou Taichun;
As shown in Figure 2, relatively irregular ancestor ground, and adjacent ancestor ground is also in relatively irregular situation, using Luo Xuan friend as this ancestor, artificially identifies that four to being: east: non-plot, south: Yang Guocai, west: Wang Changhong, north: Wang Changyuan; Also may be: east: non-plot, south: Wang Changyong, west: Li Wenhua, north: Wang Changyuan; As can be seen here, everyone may be variant to its identification, and indivedual direction there will be the result artificially can not approved.
Embodiment 1:
A kind ofly minimum outer rectangle frame is adopted to carry out ancestor ground four to the method for searching, based on this ground, by the minimum outer rectangle frame in this ground, this ground is found to be to point from four points that minimum outer rectangle frame four angle points are nearest, then by 4 to point in the direction of the clock every two to point form straight line stretching out search four to buffer distance form polygon, be this direction ancestor ground four with being contained in ancestor in described polygon or crossing with described polygon to.
Embodiment 2:
The present embodiment is at the enterprising one-step optimization in the basis of above-described embodiment, further to better implement the present invention, described by 4 to point in the direction of the clock every two to point form straight line stretching out search four to buffer distance formed polygonal concrete grammar for: by between two to putting limit based on the straight line that forms, then outside for base side translation is searched four to buffer distance after form buffer edge, then the end points of described buffer edge and described base side is connected and composed polygon, described buffer edge is crossing with cornerwise extension cord of minimum outer rectangle frame.
Embodiment 3:
The present embodiment is at the enterprising one-step optimization in the basis of above-mentioned any embodiment, further to better implement the present invention, as shown in Figure 3, described " based on this ground, by the minimum outer rectangle frame in this ground, this ground is found to be to point from four points that minimum outer rectangle frame four angle points are nearest, then by 4 to point in the direction of the clock every two to point form straight line stretching out search four to buffer distance form polygon, be this direction ancestor ground four with being contained in ancestor in described polygon or crossing with described polygon to " for utilizing computer program to complete ancestor ground four to searching by following treatment scheme:
1) plot hum pattern is implanted in the database of computer system;
2) the computer system plot hum pattern recalled in database starts ancestor ground four to searching;
3) this ground is selected;
4) adopt minimum rectangle to estimate method to intersect with carrying out ancestor;
5) determine direction and buffer distance is set;
6) ancestor ground four to rule is formulated;
7) determine ancestor ground four to and terminate to search ancestor ground four to.
Embodiment 4:
The present embodiment is at the enterprising one-step optimization in the basis of above-described embodiment, as shown in Figure 3, described step 3) with selecting this concrete grammar is: through step 2) after, computer system finds out the plot on four to ancestor to be found ground automatically as this ground, according to shown in Fig. 3, with Li Wenhua for this ground.
Embodiment 5:
The present embodiment is the enterprising one-step optimization in basis in embodiment 3 or 4, as shown in Figure 3, described 4) concrete grammar that method intersects with carrying out ancestor comprises the steps: to adopt minimum rectangle to estimate
4-1) calculate the minimum outer rectangle frame on this ground;
4-2) the upper left angle point of minimum outer rectangle frame and bottom right angle point are linked to be straight line, lower-left angle point and the upper right angle point of minimum outer rectangle frame are linked to be straight line;
4-3) calculate and with determining this ancestor with minimum outer rectangle frame diagonal line joining for point, preferably determine that four to point, that is four are respectively to an A, to putting B, to some C and to putting D to point.
Embodiment 6:
The present embodiment is at the enterprising one-step optimization in the basis of above-described embodiment, as shown in Figure 3, described 5) direction is determined and the concrete grammar arranging buffer distance comprises the following steps:
5-1) by clockwise or counterclockwise will between two to putting connection, namely near some A be connected with to putting B respectively, formation straight line AB, near some B is connected with to some C, forms straight line BC, and near some C is connected with to some D, form straight line CD, near some D is connected with to some A, forms straight line DA; Form four to the direction on this ground, wherein, the region between straight line AB and minimum outer rectangle frame diagonal line intersection point be set to the north to; Region between straight line BC and minimum outer rectangle frame diagonal line intersection point be set to east to; Region between straight line CD and minimum outer rectangle frame diagonal line intersection point be set to south to; Region between straight line DA and minimum outer rectangle frame diagonal line intersection point be set to west to;
5-2) arrange search four to buffer distance;
5-3) between two to point between the outside translation of line search four to buffer distance, and and this between two to point between line form polygon; That is, the outside translation of straight line AB extend search four to buffer distance after form straight line A ' B ', and composition polygon ABB ' A '; The outside translation of straight line BC extend search four to buffer distance after form straight line B ' C ', and composition polygon BCC ' B '; The outside translation of straight line CD extend search four to buffer distance after form straight line C ' D ', and composition polygon CDD ' C '; The outside translation of straight line DA extend search four to buffer distance after form straight line D ' A ', and composition polygon DAA ' D ';
5-4) calculate ancestor ground that is crossing with polygon on each direction or that be included in polygon.
Embodiment 7:
The present embodiment is at the enterprising one-step optimization in the basis of above-described embodiment, further to better implement the present invention, at described step 5-1) in, four to the direction forming this ground is specially: the region between the diagonal line intersection point of minimum outer rectangle frame and north orientation two to point for the north to; Region between the diagonal line intersection point of minimum outer rectangle frame and south orientation two to point be southern to; The diagonal line intersection point of minimum outer rectangle frame and west to two to point between region be west to; Region between the diagonal line intersection point of minimum outer rectangle frame and east orientation two to point be east to.
Embodiment 8:
The present embodiment is the enterprising one-step optimization in basis in embodiment 6 or 7, and as shown in Figure 3, in described step 6), ancestor ground four to rule is specially determines four to direction according to clockwise rule; That is, plot to intersect on AB border then for north four to, plot to intersect on BC border then for east four to, it is then Nan Sizhi that plot intersects on CD border, plot to intersect on DA border then for Xisi extremely.
Embodiment 9:
The present embodiment is at the enterprising one-step optimization in the basis of above-described embodiment, as shown in Figure 3, described step 7) determine ancestor ground four to and terminate to search ancestor ground four to being specially: by with this ownership name on the crossing ancestor ground direction four that is referred to as this ground to, the ownership name being about to intersect ancestor ground is referred to as this place to four to, four to north: Li Maolan; Four to east: Li Qiang; Four to south: Li Wen Ping; Four to west: Qiu Yong; Complete the ancestor ground four on this this ground of block to searching.
Embodiment 10:
The present embodiment is at the enterprising one-step optimization in the basis of above-mentioned any embodiment, further to better implement the present invention, described in search four to buffer distance be 2-4 rice.
Embodiment 11:
The present embodiment is at the enterprising one-step optimization in the basis of above-mentioned any embodiment, as shown in Figure 3, Figure 4, in computer run aspect, after starting,
The first step, performs " selecting ancestor ground " step, with namely selecting a ancestor as this ground;
Second step, performs " calculating ancestor ground minimum rectangle frame " step, namely calculates the minimum outer rectangle frame on this ground;
3rd step, performs " calculate ancestor ground with minimum rectangle frame intersection point " step, and be also linked to be straight line by the upper left angle point of minimum outer rectangle frame and bottom right angle point, lower-left angle point and the upper right angle point of minimum outer rectangle frame are linked to be straight line; Be set to point by this ancestor with minimum outer rectangle frame diagonal line joining, preferably determine that four to point, in figure 3, four are respectively to an A, to putting B, to some C and to putting D to point;
3rd step, perform " division direction " step, that is by clockwise or counterclockwise will between two to putting connection, namely near some A be connected with to putting B respectively, formation straight line AB, near some B is connected with to putting C, form straight line BC, near some C is connected with to some D, forms straight line CD, near some D is connected with to some A, forms straight line DA; Form four to the direction on this ground, wherein, the region between straight line AB and minimum outer rectangle frame diagonal line intersection point be set to the north to; Region between straight line BC and minimum outer rectangle frame diagonal line intersection point be set to east to; Region between straight line CD and minimum outer rectangle frame diagonal line intersection point be set to south to; Region between straight line DA and minimum outer rectangle frame diagonal line intersection point be set to west to;
4th step, performs " buffer distance " step, forms straight line A ' B ' after the outside translation of straight line AB extends 2-4 rice, and composition polygon ABB ' A ', straight line B ' A ' is crossing with the diagonal line of minimum outer rectangle frame respectively; The outside translation of straight line BC extend search four to buffer distance after form straight line B ' C ', and composition polygon BCC ' B ', straight line C ' B ' is crossing with the diagonal line of minimum outer rectangle frame respectively; The outside translation of straight line CD extend search four to buffer distance after form straight line C ' D ', and composition polygon CDD ' C ', straight line D ' C ' is crossing with the diagonal line of minimum outer rectangle frame respectively; The outside translation of straight line DA extend search four to buffer distance after form straight line D ' A ', and composition polygon DAA ' D ', straight line A ' D ' is crossing with the diagonal line of minimum outer rectangle frame respectively;
5th step, performs " laying down a regulation " step, determines four to direction according to clockwise rule; That is, plot to intersect on AB border then for north four to, plot to intersect on BC border then for east four to, it is then Nan Sizhi that plot intersects on CD border, plot to intersect on DA border then for Xisi extremely;
6th step, performs " search each direction four to " step, is namely contained in polygon BCC ' B ' or the plot crossing with polygon BCC ' B ' is four to east (Li Qiang); Be contained in polygon ABB ' A ' or the plot crossing with polygon ABB ' A ' is four to north (Li Maolan); Be contained in polygon DAA ' D ' or the plot crossing with polygon DAA ' D ' is four to west (Qiu Yong), be contained in polygon CDD ' C ' or the plot crossing with polygon CDD ' C ' is four to south (Li Wen Ping);
7th step, terminates four to searching.
When determine four of plot block to after, record { for (int i=0 successively in circular database table; I < landCount; I++) every circulation primary just gets a record.I is index value, and landCount is total plot number }, namely switch to another block plot and carry out ancestor ground four to searching.
The above is only preferred embodiment of the present invention, and not do any pro forma restriction to the present invention, every any simple modification, equivalent variations done above embodiment according to technical spirit of the present invention, all falls within protection scope of the present invention.
Claims (10)
1. one kind adopts minimum outer rectangle frame to carry out ancestor ground four to the method for searching, it is characterized in that: based on this ground, by the minimum outer rectangle frame in this ground, this ground is found to be to point from four points that minimum outer rectangle frame four angle points are nearest, then by 4 to point in the direction of the clock every two to point form straight line stretching out search four to buffer distance form polygon, be this direction ancestor ground four with being contained in ancestor in described polygon or crossing with described polygon to.
2. according to claim 1ly a kind ofly adopt minimum outer rectangle frame to carry out ancestor ground four to the method for searching, it is characterized in that: described by 4 to point in the direction of the clock every two to point form straight line stretching out search four to buffer distance formed polygonal concrete grammar for: by between two to putting limit based on the straight line that forms, then outside for base side translation is searched four to buffer distance after form buffer edge, then the end points of described buffer edge and described base side is connected and composed polygon.
3. according to claim 1 and 2ly a kind ofly adopt minimum outer rectangle frame to carry out ancestor ground four to the method for searching, it is characterized in that: described " based on this ground, by the minimum outer rectangle frame in this ground, this ground is found to be to point from four points that minimum outer rectangle frame four angle points are nearest, then by 4 to point in the direction of the clock every two to point form straight line stretching out search four to buffer distance form polygon, be this direction ancestor ground four with being contained in ancestor in described polygon or crossing with described polygon to " for utilizing computer program to complete ancestor ground four to searching by following treatment scheme:
1) plot hum pattern is implanted in the database of computer system;
2) the computer system plot hum pattern recalled in database starts ancestor ground four to searching;
3) this ground is selected;
4) adopt minimum rectangle to estimate method to intersect with carrying out ancestor;
5) determine direction and buffer distance is set;
6) ancestor ground four to rule is formulated;
7) determine ancestor ground four to and terminate to search ancestor ground four to.
4. according to claim 3ly a kind ofly adopt minimum outer rectangle frame to carry out ancestor ground four to the method for searching, it is characterized in that: described step 3) with selecting this concrete grammar is: through step 2) after, computer system finds out the plot on four to ancestor to be found ground automatically as this ground.
5. a kind of according to claim 3 or 4 adopts minimum outer rectangle frame to carry out ancestor ground four to the method for searching, and it is characterized in that: concrete grammar that method intersects with carrying out ancestor comprises the steps: described 4) to adopt minimum rectangle to estimate
4-1) calculate the minimum outer rectangle frame on this ground;
4-2) the upper left angle point of minimum outer rectangle frame and bottom right angle point are linked to be straight line, lower-left angle point and the upper right angle point of minimum outer rectangle frame are linked to be straight line;
4-3) calculate and with determining this ancestor with minimum outer rectangle frame diagonal line joining for point.
6. according to claim 5ly a kind ofly adopt minimum outer rectangle frame to carry out ancestor ground four to the method for searching, it is characterized in that: described 5) determine direction and the concrete grammar arranging buffer distance comprises the following steps:
5-1) by clockwise or counterclockwise will between two to putting connection, form four to the direction on this ground;
5-2) arrange search four to buffer distance;
5-3) between two to point between the outside translation of line search four to buffer distance, and and this between two to point between line form polygon;
5-4) calculate ancestor ground that is crossing with polygon on each direction or that be included in polygon.
7. according to claim 6ly a kind ofly adopt minimum outer rectangle frame to carry out ancestor ground four to the method for searching, it is characterized in that: at described step 5-1) in, four to the direction forming this ground is specially: the region between the diagonal line intersection point of minimum outer rectangle frame and north orientation two to point for the north to; Region between the diagonal line intersection point of minimum outer rectangle frame and south orientation two to point be southern to; The diagonal line intersection point of minimum outer rectangle frame and west to two to point between region be west to; Region between the diagonal line intersection point of minimum outer rectangle frame and east orientation two to point be east to.
8. a kind of according to claim 6 or 7 adopts minimum outer rectangle frame to carry out ancestor ground four to the method for searching, and it is characterized in that: in described step 6), and ancestor ground four to rule is specially determines four to direction according to clockwise rule.
9. according to claim 8ly a kind ofly adopt minimum outer rectangle frame to carry out ancestor ground four to the method for searching, it is characterized in that: described step 7) determine ancestor ground four to and terminate to search ancestor ground four to being specially: by with this ownership name on the crossing ancestor ground direction four that is referred to as this ground to, complete the ancestor ground four on this this ground of block to searching.
10. a kind of according to claim 1 or 2 or 4 or 6 or 7 or 9 adopts minimum outer rectangle frame to carry out ancestor ground four to the method for searching, and it is characterized in that: described in search four to buffer distance be 2-4 rice.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105427177A (en) * | 2015-12-16 | 2016-03-23 | 江西理工大学 | Automatic farmland four-boundary calculation method based on GIS (Geographic Information System) |
| CN105677843A (en) * | 2016-01-06 | 2016-06-15 | 中科宇图科技股份有限公司 | Method for automatically obtaining attribute of four boundaries of parcel |
| CN105677843B (en) * | 2016-01-06 | 2018-08-21 | 中科宇图科技股份有限公司 | A kind of automatic acquisition ancestor four to attribute method |
| CN108536647A (en) * | 2018-03-26 | 2018-09-14 | 中国电建集团昆明勘测设计研究院有限公司 | A method of using boundary mark and 45 ° of boundary rectangles with carrying out ancestor four to lookup |
| CN108536647B (en) * | 2018-03-26 | 2021-11-26 | 中国电建集团昆明勘测设计研究院有限公司 | Method for searching land parcel four-to-four by adopting boundary points and 45-degree external rectangle |
| CN110851555A (en) * | 2019-11-15 | 2020-02-28 | 四川鱼鳞图信息技术股份有限公司 | Plot positioning and searching method based on line segment angle weight |
| CN110851555B (en) * | 2019-11-15 | 2023-07-28 | 四川鱼鳞图信息技术股份有限公司 | Land parcel locating and searching method based on line segment angle weight |
| CN111581317A (en) * | 2020-05-07 | 2020-08-25 | 四川鱼鳞图信息技术股份有限公司 | Method and system for quickly searching adjacent plots of target area in large database |
| CN111581317B (en) * | 2020-05-07 | 2023-07-28 | 四川鱼鳞图信息技术股份有限公司 | Method and system for quickly searching adjacent plots of target area in large database |
| CN113902405A (en) * | 2021-09-30 | 2022-01-07 | 广东省国土资源测绘院 | Automatic four-to-four extraction method and system for land and house integrated land parcel |
| CN117557585A (en) * | 2024-01-12 | 2024-02-13 | 自然资源部第三地理信息制图院 | Land parcel segmentation method, system, electronic equipment and storage medium |
| CN117557585B (en) * | 2024-01-12 | 2024-03-12 | 自然资源部第三地理信息制图院 | Land parcel segmentation method, system, electronic equipment and storage medium |
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