CN110120083A - Water quality forecast is distributed drawing drawing method, device and electronic equipment - Google Patents
Water quality forecast is distributed drawing drawing method, device and electronic equipment Download PDFInfo
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Abstract
The present invention provides a kind of water quality forecasts to be distributed drawing drawing method, device and electronic equipment, it is related to the technical field of graphic plotting, by the initial Forecast Mode data for obtaining target water body, triangle grid data is converted by the initial Forecast Mode data of target water body, the map location of target water body is determined on map, on map location, the water quality forecast distribution map of target water body is drawn according to triangle grid data, the present invention can directly draw water quality distribution map by triangle grid data on map, alleviate use in the prior art with the water quality forecast distribution map of picture format is directly superimposed upon on map and cause map transmission and in terms of inconvenience technical problem.
Description
Technical field
The present invention relates to graphics plotting fields, are distributed drawing drawing method, device more particularly, to a kind of water quality forecast
And electronic equipment.
Background technique
The water quality forecast distribution map that river lake and reservoir is shown on map is the main means of Efficient Characterization water pollution situation.
Exhibition method conventional at present is, first according to the Forecast Mode data of water body, Forecast Mode data include water quality forecast data and
Network data used by water quality forecast data are recorded, the picture of water body is drawn, then pass through the geography of water body on map
The picture of water body is directly superimposed upon on map by range coordinate.
It is added on map with the water quality forecast distribution map of graphic form, it, may due to being limited by picture itself
Cause map transmission or in terms of inconvenience, such as: when being transmitted, due to water boundary it is irregular on a large scale
River lake and reservoir may need higher Internet resources in transmission so the size of the rectangle picture needed will increase at multiple
Configuration；When zooming in and out operation to the map for including water quality forecast distribution map, since map may exceed actual pixel value
When, it will appear sawtooth striped on picture, user experience is not high.
Summary of the invention
It is existing to alleviate the purpose of the present invention is to provide water quality forecast distribution drawing drawing method, device and electronic equipment
Have and is used in technology with the water quality forecast distribution map of picture format is directly superimposed upon on map and map is caused to transmit and operating
Etc. inconvenient technical problem.
A kind of water quality forecast provided by the invention is distributed drawing drawing method, comprising:
Obtain the initial Forecast Mode data of target water body；
Triangle grid data is converted by the initial Forecast Mode data of the target water body；
The map location of the target water body is determined on map；
On the map location, it is distributed according to the water quality forecast that the triangle grid data draws the target water body
Figure.
Further, wherein the initial Forecast Mode data of the target water body include that the initial water quality of target water body is pre-
Count off evidence and initial net configuration data；
Described the step of converting triangle grid data for the initial Forecast Mode data of the target water body, comprising:
Triangle gridding structured data is converted by the initial net configuration data, wherein the triangle gridding structure number
According to the top for drawing network used by water quality forecast distribution map for including in the triangle grid data for the target water body
Point data；
Triangulation network vertex water quality forecast data are converted by the initial water quality forecast data, wherein the triangulation network top
Point water quality forecast data are the water quality forecast data for the vertex of a triangle for including in the triangle grid data of the target water body.
Further, described the step of converting triangle gridding structured data for the initial net configuration data, comprising:
Each of initial mesh to the initial net configuration data composition corresponding one group of vertex of unit grid
Data are carried out as follows as unit grid data to be processed:
The unit grid data to be processed are repartitioned, three be combined into triangle gridding structured data described in multiple groups
Angular structure data；
Geographical location by the corresponding geographical location of the unit grid data to be processed, as triangular structure data.
Further, described to repartition the unit grid data to be processed, it is combined into triangle gridding described in multiple groups
The step of triangular structure data in structured data, comprising:
Choose in the unit grid data to be processed that any vertex data is as the first vertex data, according to the unit
The direction pivots clockwise or counter-clockwise on vertex in grid, then choose the second vertex data and third vertex data composition triangle knot
Structure data；
Wherein, second vertex data and third vertex data are adjacent, the top in the unit grid data to be processed
The number of point data subtracts 2 as by the number of the triangular structure of the unit grid data conversion to be processed.
Further, described to convert triangulation network vertex data water quality forecast data for the initial water quality forecast data
Step, comprising:
The initial water quality forecast data includes the corresponding initial cell water quality forecast data of multiple unit grids, is led to
Cross the water quality forecast data for the vertex data that following formula calculates in each of triangle gridding structured data triangle；
Wherein, VjFor the water quality forecast data of the vertex of a triangle j in triangle gridding structured data, NVjiFor with vertex j
The corresponding initial cell water quality forecast data of the associated unit grid；N is the unit grid associated with vertex j
Number.
Further, described on the map location, the target water body is drawn according to the triangle grid data
The step of water quality forecast distribution map, comprising:
The triangulation network vertex water quality forecast data and the triangle gridding structured data are plotted in the map location
On；
Using barycentric interpolation method, the three of each of triangle gridding structured data triangle interior arbitrary point are calculated
Net internal water quality forecast data in angle；
According to water quality forecast data inside the triangulation network, GPU is carried out to the water quality forecast distribution map of the target water body
Rendering.
Further, the method also includes:
Vertex of a triangle in the triangle gridding structured data is numbered, by the number as index；
The location information of vertex of a triangle in the triangle gridding structured data, water quality forecast data and index are turned
It is changed to binary file；
And encoded using Huffman, the triangle grid data is transmitted.
Further, described on the map location, the target water body is drawn according to the triangle grid data
After the step of water quality forecast distribution map, the method also includes:
In such a way that water quality forecast data are replaced, same water body corresponding is replaced into from the first water quality forecast distribution map
Two water quality forecast distribution maps.
A kind of water quality forecast distribution map drawing apparatus provided by the invention, comprising:
Module is obtained, for obtaining the initial Forecast Mode data of target water body；
Conversion module, for converting triangle grid data for the initial Forecast Mode data of the target water body；
Determining module, for determining the map location of the target water body on map；
Drafting module, for drawing the target water body according to the triangle grid data in the map location
Water quality forecast distribution map.
A kind of electronic equipment provided by the invention, comprising: processor and memory, being stored in the memory can be in institute
The computer program run on processor is stated, the processor realizes any one of above-described embodiment when executing the computer program
The step of described method.
A kind of computer-readable medium provided by the invention is stored with computer program on the computer-readable medium,
The computer program executes above-described embodiment described in any item methods when being run by processor.
Water quality forecast distribution drawing drawing method, device and electronic equipment provided by the invention, by obtaining target water body
Initial Forecast Mode data, convert triangle grid data for the initial Forecast Mode data of target water body, determine on map
The map location of target water body draws the water quality forecast distribution map of target water body according to triangle grid data on map location.
The present invention can directly draw water quality distribution map by triangle grid data on map, will not as picture,
The Internet resources of higher configuration are needed in transmission and when zooming in and out operation, since water body of the invention forecasts distribution map
It is to be rendered directly on map, alleviates to use in the prior art and be directly superimposed upon ground with the water quality forecast distribution map of picture format
Cause on figure map transmission and in terms of inconvenience technical problem.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the flow chart that water quality forecast provided in an embodiment of the present invention is distributed drawing drawing method；
Fig. 2 converts triangle for the initial Forecast Mode data of target water body for step S120 provided in an embodiment of the present invention
The flow chart of the specific embodiment of grid data；
Fig. 3 a is that unit grid provided in an embodiment of the present invention is a kind of structure that relatively long side is converted into 4 triangles
Figure；
Fig. 3 b is that unit grid provided in an embodiment of the present invention is another structure that relatively long side is converted into 4 triangles
Figure；
Fig. 4 is the structure chart that initial mesh provided in an embodiment of the present invention is 4 unit grids composition；
Fig. 5 is that step S140 provided in an embodiment of the present invention draws mesh according to triangle grid data on the map location
Mark the flow chart of the specific embodiment of the water quality forecast distribution map of water body；
Fig. 6 is the structure chart of water quality forecast distribution map drawing apparatus provided in an embodiment of the present invention.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with embodiment, it is clear that described reality
Applying example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Currently, usually obtaining the Forecast Mode data of water body, root when production includes the map of water quality forecast distribution map
Water quality forecast distribution map is drawn according to Forecast Mode, is directly superimposed upon on map by the picture of water quality forecast distribution map, to lead
Cause include on the map of water quality forecast distribution map transmission or in terms of bring inconvenience, reduce the experience sense of user.
Based on this, water quality forecast distribution drawing drawing method, device and electronic equipment provided by the invention are obtaining target water
After the initial Forecast Mode data of body, and Forecast Mode is directly drawn into the picture of water quality forecast distribution map not in the prior art
Together, the initial Forecast Mode data of target water body are converted triangle grid data by the application, and target water body is determined on map
Map location, on map location, according to triangle grid data draw target water body water quality forecast distribution map, energy of the present invention
Water quality distribution map is directly enough drawn on map by triangle grid data, will not be needed in transmission higher as picture
Internet resources of configuration and when zooming in and out operation, since water body forecast distribution map of the invention is to be rendered directly to map
On, it alleviates to use in the prior art and is directly superimposed upon on map with the water quality forecast distribution map of picture format and map is caused to exist
The inconvenient technical problem of transmission and operation etc..
It is described in detail below in conjunction with attached drawing:
As shown in connection with fig. 1, water quality forecast provided by the invention is distributed drawing drawing method, comprising:
S110: the initial Forecast Mode data of target water body are obtained.Wherein, target water body is water quality forecast to be drawn distribution
The water body of figure.
Forecast Mode is corresponding water quality forecast number in the network and network recorded in water quality forecast distribution map
According to mode.So may include the water quality forecast data and record water quality forecast number of water body itself in Forecast Mode data
According to geographical location used by network data, network data not only include record water quality forecast data geographical position
It sets, further includes which data forming minimal structure grid by, for example, the grid of network data composition is with minimal structure four
Side shape composition, then which geographical location is network data also record as composed by.
Wherein, water quality forecast data can be with are as follows: chemical requirement, ammonia-nitrogen content, total phosphorus, algae content etc. multiple types
Type.When recording above-mentioned a plurality of types of water quality forecast data, better effect can be will receive using different Forecast Modes,
For example, obtaining this water quality forecast data of ammonia-nitrogen content, SWAT (Soil and Water Assessment can be used
Tool) mode indicates；Or this water quality forecast data of chemical requirement are obtained, Aquasys (water can be used
Quality modeling for Aquatic System) mode expression.
In practical applications, a variety of Forecast Modes for recording the water quality forecast data of water body can be, such as: HEQM mould
Formula, the Forecast Mode are that the watershed hydrologic cycle system model of completion is developed during doctor Zhang Yongyong is equal to 2012-2015；Or
Person, SWAT mode mentioned above, the Forecast Mode are to be opened by Jeff doctor Arnold for United States Department of Agriculture the 1990s
A non-point pollution mode of hair；Alternatively, Aquasys mode mentioned above, which is Belgian flanders
A basin of Institute for Research and Technology's research and development-water quality simulation multi-mode integrated system.
It is also likely to be different in such a way that network records water quality forecast data in a plurality of types of Forecast Modes
, such as: the water quality forecast data in water quality forecast distribution map can only record for each network has a water quality pre-
All vertex datas of count off evidence or network, which record, water quality forecast data.Meanwhile obtaining water quality forecast data
When, it may be recorded using different network data, different network data can be a variety of convex-edge shapes, example
Such as: the structure of convex quadrangle or relatively long side convex polygon.
S120: triangle grid data is converted by the initial Forecast Mode data of the target water body.
Wherein, when recording forecast data is a type of initial Forecast Mode data, triangle can be converted into
Grid data；It is when the forecast data recorded with different Forecast Modes, different types of initial Forecast Mode data are unified
For triangle grid data.
Wherein, the initial Forecast Mode data of the target water body include target water body initial water quality forecast data and just
Beginning network data；The initial net configuration data are the water drawn in the initial Forecast Mode data of the target water body
Matter forecasts the vertex data of initial mesh used by distribution map；
Triangle grid data is converted by the initial Forecast Mode data of the target water body in the step s 120, in conjunction with figure
Shown in 2, it can include the following steps in detail implementation:
S121: triangle gridding structured data is converted by initial net configuration data, wherein triangle gridding structured data can
Using using triangle as the network data of unit, the triangle gridding structured data is the triangle gridding number of the target water body
Include in draws the vertex data of network used by water quality forecast distribution map.
Triangle gridding structured data is converted by the initial net configuration data, comprising:
Each of initial mesh to the initial net configuration data composition corresponding one group of vertex of unit grid
Data are carried out as follows as unit grid data to be processed, and the unit grid is the initial net configuration data
Form the minimum structural unit in initial mesh, wherein vertex data included by a unit grid is one group of network
Data, i.e., unit grid data to be processed:
The unit grid data to be processed are repartitioned, three be combined into triangle gridding structured data described in multiple groups
Angular structure data；For example, triangular structure data are also vertex data since initial net configuration data are vertex data,
Then this step can make to repartition the vertex data of unit grids, form vertex of a triangle data, that is, obtain three
Angular structure data.Such as: when unit grids can be convex-edge shape structure when, using six vertex datas of relatively long side as
Triangular apex data in triangle gridding structured data, form multiple triangles.
Geographical location by the corresponding geographical location of the unit grid data to be processed, as triangular structure data.
That is, the geographical location of each of unit grid vertex correspondence, as the geographical location of the vertex of a triangle newly formed,
The geographical location recorded in unit grid data to be processed can use longitude and latitude.
Due to, the corresponding one group of grid structured data of unit grid is the corresponding vertex data of unit grid, so, by institute
It states unit grid data to be processed to repartition, the triangular structure data being combined into triangle gridding structured data described in multiple groups
The step of may include:
Choose in the unit grid data to be processed that any vertex data is as the first vertex data, according to the unit
The direction pivots clockwise or counter-clockwise on vertex in grid, then choose the second vertex data and third vertex data composition triangle knot
Structure data；Wherein, in unit grid vertex direction pivots clockwise or counter-clockwise, include multiple vertex datas in unit grid,
According to the direction pivots clockwise or counter-clockwise that vertex data in figure arranges, for example, in conjunction with shown in Fig. 3 a, the vertex of relatively long side
Data are numbered, clockwise direction be vertex data 1, vertex data 2, vertex data 3, vertex data 4, vertex data 5,
Vertex data 6, vertex data direction counterclockwise are vertex data 1, vertex data 6, vertex data 5, vertex data 4, vertex
Data 3, vertex data 2.
Wherein, second vertex data and third vertex data are adjacent, the number of vertex in unit grid data to be processed
According to number subtract 2 as by the number of the triangular structure of the unit grid data to be processed conversion, in this way can more added with
Rule convert.
For example, there is n vertex, respectively V in unit grid data N to be processed1、V2、V3、...、Vn, more convex-edge shapes
Vertex V data, can be carried out as follows expression:
Following formula (1) is used simultaneously, converts multiple triangles, T for unit grids2For the triangular apex after conversion
The set of data, T2Number be (n-2):
N={ V1, V2, V3..., Vn}(n≥3)
T={ Vi, Vi+1, Vi+2(i>=0, i<n-2) (1)
For example, the unit grid data to be processed are repartitioned carrying out step, be combined into the triangulation network described in multiple groups
When triangular structure data in lattice structured data, can the vertex data as unit of in grid be numbered, it is, of course, also possible to
Each vertex data is identified using other modes.
In conjunction with shown in Fig. 3 a, when unit grid can be relatively long side, vertex data (one group of grid in relatively long side
Structured data) it is unit grid data to be processed, it is numbered for the vertex data of relatively long side, according to the side numbered clockwise
Formula, number 1~6.Any vertex data in the unit grid data to be processed is any one in number 1~6, with
Number 1 is for the first vertex data, the second vertex data is number 2, and third vertex data is number 3, then number 1, number
2, number 3 is that three vertex datas form a triangle, and number 1, number 3, number 4 are that three vertex datas form one three
Angular, number 1, number 4, number 6 are that three vertex datas form a triangle, and number 1, number 5, number 6 are three tops
Point data forms a triangle.
Certainly, the unit grid data to be processed are repartitioned, is combined into triangle gridding structured data described in multiple groups
In triangular structure data the step of, can also obtain in the following way: in conjunction with shown in Fig. 3 b, number 1, number 2, number
6 form a triangle for three vertex datas, and number 2, number 5, number 6 are that three vertex datas form a triangle,
Number 2, number 3, number 5 are that three vertex datas form a triangle, and number 3, number 4, number 5 are three vertex datas
Form a triangle.
S122: triangulation network vertex water quality forecast data are converted by initial water quality forecast data, wherein the triangulation network top
Point water quality forecast data are the water quality forecast data for the vertex of a triangle for including in the triangle grid data of the target water body.
The initial water quality forecast data includes the corresponding initial cell water quality forecast data of multiple unit grids, is led to
Cross the water quality forecast number for the vertex data that following formula (2) calculate in each of triangle gridding structured data triangle
According to；
Wherein, VjFor the water quality forecast data of the vertex j in the triangle in triangle gridding structured data, NVjiFor with top
The corresponding initial cell water quality forecast data of the associated unit grid of point j；N is the unit associated with vertex j
The number of grid.
That is, the water quality forecast data on each vertex of the triangle after conversion are the unit associated with the vertex
The sum of corresponding initial cell water quality forecast data of grid divided by the unit grid associated with the vertex number.Its
In, the associated number to share the vertex in the unit grid.As shown in connection with fig. 4, it is rectangular for showing initial mesh
When, initial mesh from left to right from top to bottom, is followed successively by first unit grid, second unit so that 4 unit grids form as an example
Grid, third unit grid, the 4th unit grid, first to fourth unit grid all have a corresponding initial cell water quality
Forecast data, wherein 9 vertex are represented using number 1~9, the water quality forecast data of 9 vertex correspondences are the triangle after conversion
Net vertex water quality forecast data, the vertex of first unit grid is number 1, number 2, number 4, number 5, second unit grid
Vertex is number 2, number 3, number 5, number 6, and the vertex of third unit grid is number 4, number 5, number 7, number 8, the
The vertex of four unit grids is number 5, number 6, number 8, number 9, and each unit grid can convert triangle gridding structure number
Two triangles in, each vertex of a triangle are respectively the vertex of unit grid, then seek the top of each unit grid
The water quality forecast data of point, it can triangulation network vertex water quality forecast data are obtained, are as follows:
Number 1 belongs to first unit grid, and the water quality forecast data of number 1 are not total with the second to the 4th unit grid
It enjoys, so, the water quality forecast data of number 1 are the water quality forecast data of first unit grid；
The water quality forecast data and first unit grid and second unit grid of number 2 are shared, so, the water quality of number 2
Forecast data is (the water quality forecast data that the water quality forecast data of first unit grid add second unit grid) divided by 2；
Number 3 belongs to second unit grid, the water quality forecast data of number 3 not with first unit grid, third unit
Grid and the 4th unit grid are shared, so, the water quality forecast data of number 3 are the water quality forecast data of second unit grid；
The water quality forecast data and first unit grid and third unit grid of number 4 are shared, so, the water quality of number 4
Forecast data is (the water quality forecast data that the water quality forecast data of first unit grid add third unit grid) divided by 2；
The water quality forecast data of number 5 and first to fourth unit grid are shared, so, the water quality forecast data of number 5
It is (the water quality forecast data of first to fourth unit grid are added) divided by 4；
The water quality forecast data and second unit grid of number 6 and the 4th unit grid are shared, so, the water quality of number 6
Forecast data is (the water quality forecast data that the water quality forecast data of second unit grid add the 4th unit grid) divided by 2；
Number 7 belongs to third unit grid, the water quality forecast data of number 7 not with first unit grid, second unit
Grid and the 4th unit grid are shared, so, the water quality forecast data of number 7 are the water quality forecast data of third unit grid；
The water quality forecast data and third unit grid of number 8 and the 4th unit grid are shared, so, the water quality of number 8
Forecast data is (the water quality forecast data that the water quality forecast data of third unit grid add the 4th unit grid) divided by 2；
Number 9 belongs to the 4th unit grid, the water quality forecast data of number 9 not with first unit grid, second unit
Grid and third unit grid are shared, so, the water quality forecast data of number 9 are the water quality forecast data of the 4th unit grid.
S130: the map location of target water body is determined on map.
Wherein it is possible to obtain the geographic range coordinate of target water body, then with the geographical location of the target water body on map
It is corresponding, the coordinate position in map, the as map location of target water body are converted to from geographic range coordinate.
S140: on map location, the water quality forecast distribution map of target water body is drawn according to triangle grid data.
As shown in connection with fig. 5, step S140 can be carried out as follows:
S141: the triangulation network vertex water quality forecast data and the triangle gridding structured data are plotted in the map
On position.
From the foregoing, it will be observed that triangle gridding structured data includes the geographical location on vertex, it is corresponding with the geographical location on map,
Meanwhile the geographical location on vertex is converted into the map location on map, i.e. graph position, it is drawn on map, then,
Upper corresponding water quality forecast data are marked in corresponding apex, to complete triangle side length, that is, complete the drafting of framework.
S142: using barycentric interpolation method, calculates each of triangle gridding structured data triangle interior arbitrary point
Water quality forecast data inside the triangulation network.
Wherein: V is triangle interior arbitrary point, i.e. pixel, and coordinate (x, y), V.x is the cross of triangle interior arbitrary point
Coordinate, V.y are the ordinate of triangle interior arbitrary point, and V1.x is the abscissa of triangular apex V1, and V1.y is triangle top
The ordinate of point V1, V2.x are the abscissa of triangular apex V2, and V2.y is the ordinate of triangular apex V2；V3.x is triangle
The abscissa of shape vertex V3, V3.y are the ordinate of triangular apex V3；V1, V2, V3 are three vertex of triangle, are solved
To the value of variable m and n, formula (3) can be brought into and obtain the water quality forecast data of arbitrary point V.
S143: according to water quality forecast data inside the triangulation network, to the water quality forecast distribution map of the target water body into
Row GPU rendering.
In practical applications, step S130 determines the map location of target water body on map, and step S140 is in map position
It sets, the water quality forecast distribution map of target water body is drawn according to triangle grid data, can be carried out in browser end, that is, complete
The process drawn and rendered, can sufficiently excavate high-performance editable characteristic and figure rendering characteristics.
Step S110 obtains the initial Forecast Mode data of target water body, and step S120 converts initial Forecast Mode data
It for triangle grid data, can be completed in server end, then the present invention also wraps when being transferred to browser end from server end
It includes:
Vertex of a triangle in the triangle gridding structured data is numbered；For example, Fig. 3 a, Fig. 3 b and Fig. 4 that
The vertex of figure is numbered in sample.
By the number as index；
The location information of vertex of a triangle in the triangle gridding structured data, water quality forecast data and index are turned
It is changed to binary file；
And encoded using Huffman, the triangle grid data is transmitted.
Above-mentioned transmission mode can be avoided when being transmitted with pictorial manner, must be compared with because the capacity of picture is bigger
The problem of high Internet resources, when being compressed with data, can carry out the compression of lossless data, reduce the pressure of network transmission.
In step S140 on the map location, the water quality of the target water body is drawn according to the triangle grid data
After the step of forecasting distribution map, the method also includes:
In such a way that water quality forecast data are replaced, it is corresponding that same water body is replaced into from the first water quality forecast distribution map
The second water quality forecast distribution map.It is pre- so as to quickly establish the water quality that same water body is generated by different quality forecast data
It calls the score Butut, reduces the redundancy for calculating data.
Particularly, it can use index, the water quality forecast data on vertex replaced, so as to more quickly
Obtain other water quality forecast distribution maps.In particular, to same water quality, when different quality forecast data is drawn, for example,
When being equally to Taihu Lake progress water quality forecast distribution map, the water quality that can form the water quality forecast data formation of chemical requirement is pre-
It calls the score Butut, forms the water quality forecast distribution map that the water quality forecast data of ammonia-nitrogen content are formed, form the water quality forecast number of total phosphorus
According to the water quality forecast distribution map of formation, the water quality forecast distribution map that the water quality forecast data of algae content are formed is formed, four are not
Same water quality forecast data, can be after drawing a water quality forecast distribution map, since landform is the same, network
It is identical, so, directly adopt the mode of the water quality forecast data displacement on vertex, so that it may obtain the other three water quality forecast data
Corresponding water quality forecast distribution map.
Corresponding above-mentioned water quality forecast is distributed drawing drawing method, draws and fills invention further provides a kind of water quality forecast distribution map
It sets, as shown in connection with fig. 6, comprising:
Module 610 is obtained, for obtaining the initial Forecast Mode data of target water body；
Conversion module 620, for converting triangle grid data for the initial Forecast Mode data of the target water body；
Determining module 630, for determining the map location of the target water body on map；
Drafting module 640, for drawing the target water body according to the triangle grid data in the map location
Water quality forecast distribution map.
The technical effect and preceding method embodiment phase of device provided by the embodiment of the present invention, realization principle and generation
Together, to briefly describe, Installation practice part does not refer to place, can refer to corresponding contents in preceding method embodiment.
The a kind of electronic equipment that the present invention provides again, comprising: processor and memory, being stored in the memory can be
The computer program run on the processor, the processor realize that above-described embodiment is any when executing the computer program
The step of method described in item.
A kind of computer-readable medium that the present invention provides again is stored with computer journey on the computer-readable medium
Sequence, the computer program execute above-described embodiment described in any item methods when being run by processor.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of water quality forecast is distributed drawing drawing method characterized by comprising
Obtain the initial Forecast Mode data of target water body；
Triangle grid data is converted by the initial Forecast Mode data of the target water body；
The map location of the target water body is determined on map；
On the map location, the water quality forecast distribution map of the target water body is drawn according to the triangle grid data.
2. water quality forecast according to claim 1 is distributed drawing drawing method, which is characterized in that
Wherein, the initial Forecast Mode data of the target water body include the initial water quality forecast data and original net of target water body
Lattice structured data；
Described the step of converting triangle grid data for the initial Forecast Mode data of the target water body, comprising:
Triangle gridding structured data is converted by the initial net configuration data, wherein the triangle gridding structured data is
Include in the triangle grid data of the target water body draws the number of vertex of network used by water quality forecast distribution map
According to；
Triangulation network vertex water quality forecast data are converted by the initial water quality forecast data, wherein triangulation network vertex water
Matter forecast data is the water quality forecast data for the vertex of a triangle for including in the triangle grid data of the target water body.
3. water quality forecast according to claim 2 is distributed drawing drawing method, which is characterized in that described by the initial mesh
Structured data is converted into the step of triangle gridding structured data, comprising:
Each of initial mesh to the initial net configuration data composition corresponding one group of vertex data of unit grid
It is carried out as follows as unit grid data to be processed:
The unit grid data to be processed are repartitioned, the triangle being combined into triangle gridding structured data described in multiple groups
Structured data；
Geographical location by the corresponding geographical location of the unit grid data to be processed, as triangular structure data.
4. water quality forecast according to claim 3 is distributed drawing drawing method, which is characterized in that described by the list to be processed
The step of first grid data is repartitioned, the triangular structure data being combined into triangle gridding structured data described in multiple groups, packet
It includes:
Choose in the unit grid data to be processed that any vertex data is as the first vertex data, according to the unit grid
The direction pivots clockwise or counter-clockwise on middle vertex, then choose the second vertex data and third vertex data composition triangular structure number
According to；
Wherein, second vertex data and third vertex data are adjacent, the number of vertex in the unit grid data to be processed
According to number subtract 2 as by the number of the triangular structure of the unit grid data to be processed conversion.
5. water quality forecast according to claim 3 is distributed drawing drawing method, which is characterized in that described by the initial water quality
Forecast data is converted into the step of triangulation network vertex water quality forecast data, comprising:
The initial water quality forecast data includes the corresponding initial cell water quality forecast data of multiple unit grids, by with
Lower formula calculates the water quality forecast data of the vertex data in each of triangle gridding structured data triangle；
Wherein, VjFor the water quality forecast data of the vertex of a triangle j in triangle gridding structured data, NVjiIt is related to vertex j
The corresponding initial cell water quality forecast data of the unit grid of connection；N is of the unit grid associated with vertex j
Number.
6. water quality forecast according to claim 5 is distributed drawing drawing method, which is characterized in that described in the map location
On, the step of drawing the water quality forecast distribution map of the target water body according to the triangle grid data, comprising:
The triangulation network vertex water quality forecast data and the triangle gridding structured data are plotted on the map location；
Using barycentric interpolation method, the triangulation network of each of triangle gridding structured data triangle interior arbitrary point is calculated
Internal water quality forecast data；
According to water quality forecast data inside the triangulation network, GPU rendering is carried out to the water quality forecast distribution map of the target water body.
7. water quality forecast according to claim 6 is distributed drawing drawing method, which is characterized in that the method also includes:
Vertex of a triangle in the triangle gridding structured data is numbered, by the number as index；
It is by the location information of the vertex of a triangle in the triangle gridding structured data, water quality forecast data and index translation
Binary file；
And encoded using Huffman, the triangle grid data is transmitted.
8. water quality forecast according to claim 7 is distributed drawing drawing method, which is characterized in that described in the map location
On, after the step of drawing the water quality forecast distribution map of the target water body according to the triangle grid data, the method is also
Include:
In such a way that water quality forecast data are replaced, corresponding second water of same water body is replaced into from the first water quality forecast distribution map
Matter forecasts distribution map.
9. a kind of water quality forecast distribution map drawing apparatus characterized by comprising
Module is obtained, for obtaining the initial Forecast Mode data of target water body；
Conversion module, for converting triangle grid data for the initial Forecast Mode data of the target water body；
Determining module, for determining the map location of the target water body on map；
Drafting module, for drawing the water quality of the target water body according to the triangle grid data in the map location
Forecast distribution map.
10. a kind of electronic equipment characterized by comprising processor and memory, being stored in the memory can be described
The computer program run on processor, the processor realize the claims 1 to 8 when executing the computer program
The step of method described in one.
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Application publication date: 20190813 Assignee: Beijing Zhongke Sanqing Environmental Technology Co.,Ltd. Assignor: 3CLEAR TECHNOLOGY Co.,Ltd. Contract record no.: X2022980012305 Denomination of invention: Water quality forecast distribution map drawing method, device and electronic equipment Granted publication date: 20200306 License type: Common License Record date: 20220815 |