CN109829019A - A kind of data transfer device of vector data, device and electronic equipment - Google Patents
A kind of data transfer device of vector data, device and electronic equipment Download PDFInfo
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Abstract
This application provides a kind of data transfer device of vector data, device and electronic equipments, specially determine maximum grid and minimum grid according to the maximum area of vector data and minimum area；Vector data is scanned according to maximum grid for the first time, obtains multiple cells；The value of cell within vector boundary in vector data is denoted as to the grid attribute value of vector data；Successively reduce the area of scanning element；The cell across vector boundary is scanned again according to the scanning element after diminution, obtains multiple cells；The value of cell within vector boundary is denoted as to the grid attribute value of vector data；And so on.This programme is by gradually reducing scanning element, biggish connected region can be converted with biggish grid to improve computational efficiency, lesser connected region is converted with lesser grid to guarantee conversion accuracy, so that realizing realizes higher computational efficiency in the case where guaranteeing precision.
Description
Technical field
The present invention relates to GIS technology fields, more particularly to the data transfer device, device and electronics of a kind of vector data
Equipment.
Background technique
In GIS application, many calculating are usually carried out under raster data structure, such as the soil in water and soil conservation industry
It corrodes and calculates, it usually needs vector data, such as face figure layer are converted into raster data, will pass through calculating to raster data
To final result.During the vector data of large area is converted to raster data, higher calculating is smart in order to obtain
Degree, needs to be arranged higher resolution ratio, and conversion in this way causes the computational efficiency of system lower and occupies biggish memory space.
Summary of the invention
In view of this, the present invention provides a kind of data transfer device of vector data, device and electronic equipment, to solve
Computational efficiency is improved in the case where meeting required precision.
To solve the above-mentioned problems, the invention discloses a kind of data transfer devices of vector data, comprising steps of
The maximum area and minimum area for calculating vector data to be converted determine maximum gate according to the maximum area
Lattice determine minimum grid according to the minimum area, using the maximum grid as scanning element；
The vector data is scanned according to the scanning element, obtains multiple cells；
The value of cell within a vector boundary in the vector data is denoted as to the grid of the vector data
Lattice attribute value；
The area of the scanning element is reduced by preset ratio；
The cell across the vector boundary is scanned again according to the scanning element after diminution, obtains multiple units
Lattice；
The value of cell within the vector boundary is denoted as to the grid attribute value of the vector data；
The area of the scanning element is judged, if the area of the scanning element is greater than the minimum grid
Area then returns to the area step that the scanning element is reduced by preset ratio.
If the area of the scanning element is less than or equal to the area of the minimum grid, the vector edges will be crossed over
The maximum area of the cell on boundary is as its grid attribute value.
Optionally, the maximum area is the integral multiple of the minimum area.
Optionally, the maximum area is the integral multiple of the area of the maximum grid；The minimum area be it is described most
The integral multiple of the area of small grid.
Optionally, the multiple of the maximum area and the minimum area, with the maximum area and the maximum grid
Area multiple, at the relationship of integral multiple；
The multiple of the maximum area and the minimum area, with the area of the minimum area and the minimum grid
Multiple, at the relationship of integral multiple.
In addition, additionally providing a kind of data conversion device of vector data, comprising:
Raster symbol-base module, for calculating the maximum area and minimum area of vector data to be converted, according to it is described most
Large area determines maximum grid, determines minimum grid according to the minimum area, using the maximum grid as scanning element；
First scan module obtains multiple units for being scanned according to the scanning element to the vector data
Lattice；
First logging modle, for the value for the cell being within a vector boundary of the vector data to be denoted as
The grid attribute value of the vector data；
Processing module is reduced, for reducing the area of the scanning element by preset ratio；
Second scan module, for being swept again according to the scanning element after diminution to the cell across the vector boundary
It retouches, obtains multiple cells；
Second logging modle, for the value for the cell being within the vector boundary to be denoted as the vector data
Grid attribute value；
Area judgment module judges for the area to the scanning element, if the area of the scanning element
Greater than the area of the minimum grid, then the area step that the scanning element is reduced by preset ratio is returned；
Third logging modle, if the area for the scanning element is less than or equal to the area of the minimum grid,
The maximum area of the cell on the vector boundary will then be crossed over as its grid attribute value.
Optionally, the maximum area is the integral multiple of the minimum area.
Optionally, the maximum area is the integral multiple of the area of the maximum grid；The minimum area be it is described most
The integral multiple of the area of small grid.
Optionally, the multiple of the maximum area and the minimum area, with the maximum area and the maximum grid
Area multiple, at the relationship of integral multiple；
The multiple of the maximum area and the minimum area, with the area of the minimum area and the minimum grid
Multiple, at the relationship of integral multiple.
A kind of electronic equipment is additionally provided, including processor, the memory connecting with the processor signal, the storage
Device is for storing computer program or instruction, and the processor is for executing the computer program or instruction, so that the electricity
Sub- equipment executes data transfer device, and the data transfer device includes the following steps:
The maximum area and minimum area for calculating vector data to be converted determine maximum gate according to the maximum area
Lattice determine minimum grid according to the minimum area, using the maximum grid as scanning element；
The vector data is scanned according to the scanning element, obtains multiple cells；
The value of cell within a vector boundary in the vector data is denoted as to the grid of the vector data
Lattice attribute value；
The area of the scanning element is reduced by preset ratio；
The cell across the vector boundary is scanned again according to the scanning element after diminution, obtains multiple units
Lattice；
The value of cell within the vector boundary is denoted as to the grid attribute value of the vector data；
The area of the scanning element is judged, if the area of the scanning element is greater than the minimum grid
Area then returns to the area step that the scanning element is reduced by preset ratio；
If the area of the scanning element is less than or equal to the area of the minimum grid, the vector edges will be crossed over
The maximum area of the cell on boundary is as its grid attribute value.
It can be seen from the above technical proposal that this application provides a kind of data transfer device of vector data, device and
Electronic equipment specially calculates the maximum area and minimum area of vector data to be converted, is determined according to maximum area maximum
Grid determines minimum grid according to minimum area, using maximum grid as scanning element；According to scanning element to vector data into
Row scanning, obtains multiple cells；The value of cell within a vector boundary in vector data is denoted as vector number
According to grid attribute value；The area of scanning element is reduced by preset ratio；According to the scanning element after diminution to cross over vector edges
The cell on boundary scans again, obtains multiple cells；The value of cell within vector boundary is denoted as vector data
Grid attribute value；The area of scanning element is judged, if the area of scanning element is greater than the area of minimum grid,
Return to the area step that scanning element is reduced by preset ratio；If scanning element is equal to or less than minimum grid, sweared to crossing over
The value for measuring the cell on boundary is recorded.By gradually reducing scanning element, various sizes of grid can be pressed to vector data
Lattice are handled, i.e., biggish connected region are converted with biggish grid, so as to improve computational efficiency, and for compared with
Small connected region can then be converted according to lesser grid, thereby may be ensured that conversion accuracy, guaranteed to realize
Higher computational efficiency is realized in the case where precision.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of flow chart of the data transfer device of vector data of the embodiment of the present application；
Fig. 2 is a kind of block diagram of the data conversion device of vector data of the embodiment of the present application；
Fig. 3 is the block diagram of a kind of electronic equipment of the embodiment of the present application.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment one
Fig. 1 is a kind of flow chart of the data transfer device of vector data of the embodiment of the present application.
Shown in referring to Fig.1, data transfer device provided in this embodiment is used to vector data being converted to corresponding grid
Data, raster data include multiple cells, and each cell corresponds to corresponding grid attribute value.The data transfer device packet
Include following steps:
S1, maximum grid and minimum grid are determined according to the area of vector data.
Here area refers to the area of the connected region in vector data, in order to which determination is scanned institute to vector data
The grid of foundation first calculates the area of connected region in vector data, therefrom finds out maximum area and minimum area,
The area of the area in i.e. largest connected region and minimum connected region.In addition, for convenience of calculation, when determining minimum area,
The area for not only considering minimum connected region, can make the integral multiple of maximum area minimum area, and such as 4nTimes.
After calculating maximum area and minimum area, according to the area determine scanning based on grid area, one
As for, be convenience of calculation, maximum area is determined as the integral multiple of maximum grid by we, such as determines four points of maximum area
One of for maximum grid area；Correspondingly, determining that a quarter of minimum area is the area of minimum grid.
After determining maximum grid and minimum grid, tentatively using the maximum grid as scanning element, so as to basis in turn
The scanning element is scanned processing to vector data.
S2, vector data is scanned according to respective scan cells.
After determining that the maximum grid is scanning element, vector data to be processed is carried out according to the scanning element preliminary
Scanning, to obtain multiple cells.
S3, the grid attribute value for recording each cell.
After obtaining multiple cells, some of them cell is in vector data within vector boundary, some then across
More corresponding vector boundary.Here using the value of the cell in the vector boundary as the grid attribute value of the vector data,
The grid attribute value is the integer value of the cell in vector boundary in other words.
Following processing is then carried out for the cell across respective vectors boundary.
S4, the area that scanning element is reduced by preset ratio.
When carrying out preliminary scan to vector data, scanning element is the maximum grid initially determined that, in order to swear to leap
The cell on amount boundary is handled, and is herein modified scanning element, such as scanning element is reduced into former scanning element
A quarter times, using the scanning element after diminution as new scanning element.
S5, the cell across vector boundary is scanned again.
After by scanning element diminution processing, by the scanning element after diminution to locating for the cell across vector boundary
Region is scanned again, to obtain multiple cells after multiple diminutions, the multiple cells obtained here still can some lists
First lattice are in vector boundary, some can then cross over vector boundary.
The grid attribute value of the cell of S6, record in vector boundary.
For the cell in vector boundary, give the value of the cell as the grid attribute value of vector data
Record, to constitute raster data together with aforementioned resulting grid attribute value.
S7, judge whether scanning element is less than minimum grid.
It here is to be compared the area of the scanning element with the area of above-mentioned minimum grid in fact, if the scanning list
Member be greater than the minimum grid, then back to it is above-mentioned by preset ratio diminution scanning element area step, if it is less than or be equal to,
It does not return again to then, that is, stops the operation being reduced to grid.
S8, the value of the cell across vector boundary is recorded.
I.e. when the area of scanning element is equal to or less than the area of minimum grid, the cell on the vector boundary will be crossed over
Maximum area recorded as its grid attribute value.Grid categories all in vector boundary are in what is be previously obtained in this way
Property value constitute complete raster data.
It can be seen from the above technical proposal that this application provides a kind of data transfer devices of vector data, specially
The maximum area and minimum area for calculating vector data to be converted determine maximum grid according to maximum area, according to minimal face
Product determines minimum grid, using maximum grid as scanning element；Vector data is scanned according to scanning element, is obtained multiple
Cell；The value of cell within a vector boundary in vector data is denoted as to the grid attribute value of vector data；
The area of scanning element is reduced by preset ratio；The cell across vector boundary is swept again according to the scanning element after diminution
It retouches, obtains multiple cells；The value of cell within vector boundary is denoted as to the grid attribute value of vector data；To sweeping
The area for retouching unit is judged, if the area of scanning element is greater than the area of minimum grid, is returned and is contracted by preset ratio
The area step of small scanning element；If scanning element is equal to or less than minimum grid, to the cell across vector boundary
Value is recorded.By gradually reducing scanning element, vector data can be handled by various sizes of grid, i.e., for
Biggish connected region is converted with biggish grid, so as to improve computational efficiency, and then may be used for lesser connected region
To be converted according to lesser grid, conversion accuracy thereby may be ensured that, realize to realize in the case where guaranteeing precision
Higher computational efficiency.
It should be noted that for simple description, therefore, it is stated as a series of action groups for embodiment of the method
It closes, but those skilled in the art should understand that, embodiment of that present invention are not limited by the describe sequence of actions, because according to
According to the embodiment of the present invention, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art also should
Know, the embodiments described in the specification are all preferred embodiments, and the related movement not necessarily present invention is implemented
Necessary to example.
Embodiment two
Fig. 2 is a kind of block diagram of the data conversion device of vector data of the embodiment of the present application.
Referring to shown in Fig. 2, data conversion device provided in this embodiment is used to vector data being converted to corresponding grid
Data, raster data include multiple cells, and each cell corresponds to corresponding grid attribute value.The data conversion device packet
Include raster symbol-base module 10, the first scan module 20, the first logging modle 30, reduce processing module 40, the second scan module 50,
Second logging modle 60, area judgment module 70 and third recording unit 80.
Raster symbol-base module is used to determine maximum grid and minimum grid according to the area of vector data.
Here area refers to the area of the connected region in vector data, in order to which determination is scanned institute to vector data
The grid of foundation first calculates the area of connected region in vector data, therefrom finds out maximum area and minimum area,
The area of the area in i.e. largest connected region and minimum connected region.In addition, for convenience of calculation, when determining minimum area,
The area for not only considering minimum connected region, can make the integral multiple of maximum area minimum area, and such as 4nTimes.
After calculating maximum area and minimum area, according to the area determine scanning based on grid area, one
As for, be convenience of calculation, maximum area is determined as the integral multiple of maximum grid by we, such as determines four points of maximum area
One of for maximum grid area；Correspondingly, determining that a quarter of minimum area is the area of minimum grid.
After determining maximum grid and minimum grid, tentatively using the maximum grid as scanning element, so as to basis in turn
The scanning element is scanned processing to vector data.
First scan module is for being scanned vector data according to respective scan cells.
After determining that the maximum grid is scanning element, vector data to be processed is carried out according to the scanning element preliminary
Scanning, to obtain multiple cells.
First logging modle is used to record the grid attribute value of each cell.
After obtaining multiple cells, some of them cell is in vector data within vector boundary, some then across
More corresponding vector boundary.Here using the value of the cell in the vector boundary as the grid attribute value of the vector data,
The grid attribute value is the integer value of the cell in vector boundary in other words.
Following processing is then carried out for the cell across respective vectors boundary.
Reduce the area that processing module is used to reduce scanning element by preset ratio.
When carrying out preliminary scan to vector data, scanning element is the maximum grid initially determined that, in order to swear to leap
The cell on amount boundary is handled, and is herein modified scanning element, such as scanning element is reduced into former scanning element
A quarter times, using the scanning element after diminution as new scanning element.
Second scan module is used to be scanned the cell across vector boundary again.
After by scanning element diminution processing, by the scanning element after diminution to locating for the cell across vector boundary
Region is scanned again, to obtain multiple cells after multiple diminutions, the multiple cells obtained here still can some lists
First lattice are in vector boundary, some can then cross over vector boundary.
Second logging modle is used to record the grid attribute value of the cell in vector boundary.
For the cell in vector boundary, give the value of the cell as the grid attribute value of vector data
Record, to constitute raster data together with aforementioned resulting grid attribute value.
Area judgment module most descends grid for judging whether scanning element is less than.
It here is to be compared the area of the scanning element with the area of above-mentioned minimum grid in fact, if the scanning list
Member is greater than the minimum grid, then controls and reduce processing module by the area of preset ratio diminution scanning element, and swept again
Retouch, if it is less than or be equal to, then no longer control reduce processing module diminution processing is carried out to scanning element.
Third logging modle is used to record the value of the cell across vector boundary.
I.e. when the area of scanning element is equal to or less than the area of minimum grid, the cell on the vector boundary will be crossed over
Maximum area recorded as its grid attribute value.Grid categories all in vector boundary are in what is be previously obtained in this way
Property value constitute complete raster data.
It can be seen from the above technical proposal that this application provides a kind of data conversion devices of vector data, specially
The maximum area and minimum area for calculating vector data to be converted determine maximum grid according to maximum area, according to minimal face
Product determines minimum grid, using maximum grid as scanning element；Vector data is scanned according to scanning element, is obtained multiple
Cell；The value of cell within a vector boundary in vector data is denoted as to the grid attribute value of vector data；
The area of scanning element is reduced by preset ratio；The cell across vector boundary is swept again according to the scanning element after diminution
It retouches, obtains multiple cells；The value of cell within vector boundary is denoted as to the grid attribute value of vector data；To sweeping
The area for retouching unit is judged, if the area of scanning element is greater than the area of minimum grid, is returned and is contracted by preset ratio
The area step of small scanning element；If scanning element is equal to or less than minimum grid, to the cell across vector boundary
Value is recorded.By gradually reducing scanning element, vector data can be handled by various sizes of grid, i.e., for
Biggish connected region is converted with biggish grid, so as to improve computational efficiency, and then may be used for lesser connected region
To be converted according to lesser grid, conversion accuracy thereby may be ensured that, realize to realize in the case where guaranteeing precision
Higher computational efficiency.
Embodiment three
Fig. 3 is the block diagram of a kind of electronic equipment of the embodiment of the present application.
Referring to shown in Fig. 3, electronic equipment 100 provided in this embodiment specifically can be understood as mobile device, data terminal,
The electronic computing devices such as PC, server include at least processor 101 and memory 102, and the two passes through data/address bus
103 are connected.For storing computer program or instruction, processor is then obtained by data/address bus and executes the meter memory
Calculation machine program or instruction, so that the electronic equipment executes data transfer device provided by the present application, specific steps are as follows:
The maximum area and minimum area for calculating vector data to be converted determine maximum grid, root according to maximum area
Minimum grid is determined according to minimum area, using maximum grid as scanning element；
Vector data is scanned according to scanning element, obtains multiple cells；
The value of cell within a vector boundary in vector data is denoted as to the grid attribute value of vector data；
The area of scanning element is reduced by preset ratio；
The cell across vector boundary is scanned again according to the scanning element after diminution, obtains multiple cells；
The value of cell within vector boundary is denoted as to the grid attribute value of vector data；
The area of scanning element is judged, if the area of scanning element is greater than the area of minimum grid, is returned
The area step of scanning element is reduced by preset ratio.
If the area of scanning element is less than or equal to the area of minimum grid, the cell on vector boundary will be crossed over
Maximum area is as its grid attribute value.
Scanning element can gradually be reduced by aforesaid operations, can to vector data by various sizes of grid at
Reason, i.e., converted biggish connected region with biggish grid, so as to improve computational efficiency, and for lesser connection
Region can then be converted according to lesser grid, thereby may be ensured that conversion accuracy, to realize in the feelings for guaranteeing precision
Higher computational efficiency is realized under condition.
For device embodiment, since it is basically similar to the method embodiment, related so being described relatively simple
Place illustrates referring to the part of embodiment of the method.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.
It should be understood by those skilled in the art that, the embodiment of the embodiment of the present invention can provide as method, apparatus or calculate
Machine program product.Therefore, the embodiment of the present invention can be used complete hardware embodiment, complete software embodiment or combine software and
The form of the embodiment of hardware aspect.Moreover, the embodiment of the present invention can be used one or more wherein include computer can
With in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program code
The form of the computer program product of implementation.
The embodiment of the present invention be referring to according to the method for the embodiment of the present invention, terminal device (system) and computer program
The flowchart and/or the block diagram of product describes.It should be understood that flowchart and/or the block diagram can be realized by computer program instructions
In each flow and/or block and flowchart and/or the block diagram in process and/or box combination.It can provide these
Computer program instructions are set to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing terminals
Standby processor is to generate a machine, so that being held by the processor of computer or other programmable data processing terminal devices
Capable instruction generates for realizing in one or more flows of the flowchart and/or one or more blocks of the block diagram
The device of specified function.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing terminal devices
In computer-readable memory operate in a specific manner, so that instruction stored in the computer readable memory generates packet
The manufacture of command device is included, which realizes in one side of one or more flows of the flowchart and/or block diagram
The function of being specified in frame or multiple boxes.
These computer program instructions can also be loaded into computer or other programmable data processing terminal devices, so that
Series of operation steps are executed on computer or other programmable terminal equipments to generate computer implemented processing, thus
The instruction executed on computer or other programmable terminal equipments is provided for realizing in one or more flows of the flowchart
And/or in one or more blocks of the block diagram specify function the step of.
Although the preferred embodiment of the embodiment of the present invention has been described, once a person skilled in the art knows bases
This creative concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted as
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements not only wrap
Those elements are included, but also including other elements that are not explicitly listed, or further includes for this process, method, article
Or the element that terminal device is intrinsic.In the absence of more restrictions, being wanted by what sentence "including a ..." limited
Element, it is not excluded that there is also other identical elements in process, method, article or the terminal device for including the element.
Technical solution provided by the present invention is described in detail above, specific case used herein is to this hair
Bright principle and embodiment is expounded, method of the invention that the above embodiments are only used to help understand and its
Core concept；At the same time, for those skilled in the art, according to the thought of the present invention, in specific embodiment and application
There will be changes in range, in conclusion the contents of this specification are not to be construed as limiting the invention.
Claims (9)
1. a kind of data transfer device of vector data, which is characterized in that comprising steps of
The maximum area and minimum area for calculating vector data to be converted determine maximum grid, root according to the maximum area
Minimum grid is determined according to the minimum area, using the maximum grid as scanning element；
The vector data is scanned according to the scanning element, obtains multiple cells；
The value of cell within a vector boundary in the vector data is denoted as to the grid category of the vector data
Property value；
The area of the scanning element is reduced by preset ratio；
The cell across the vector boundary is scanned again according to the scanning element after diminution, obtains multiple cells；
The value of cell within the vector boundary is denoted as to the grid attribute value of the vector data；
The area of the scanning element is judged, if the area of the scanning element is greater than the face of the minimum grid
Product then returns to the area step that the scanning element is reduced by preset ratio；
If the area of the scanning element is less than or equal to the area of the minimum grid, the vector boundary will be crossed over
The maximum area of cell is as its grid attribute value.
2. data transfer device as described in claim 1, which is characterized in that the maximum area is the whole of the minimum area
Several times.
3. data transfer device as claimed in claim 2, which is characterized in that the maximum area is the face of the maximum grid
Long-pending integral multiple；The minimum area is the integral multiple of the area of the minimum grid.
4. data transfer device as claimed in claim 3, which is characterized in that times of the maximum area and the minimum area
Number, the multiple with the maximum area and the area of the maximum grid, at the relationship of integral multiple；
The multiple of the maximum area and the minimum area, times with the minimum area and the area of the minimum grid
Number, at the relationship of integral multiple.
5. a kind of data conversion device of vector data characterized by comprising
Raster symbol-base module, for calculating the maximum area and minimum area of vector data to be converted, according to the largest face
Product determines maximum grid, determines minimum grid according to the minimum area, using the maximum grid as scanning element；
First scan module obtains multiple cells for being scanned according to the scanning element to the vector data；
First logging modle, it is described for the value for the cell being within a vector boundary of the vector data to be denoted as
The grid attribute value of vector data；
Processing module is reduced, for reducing the area of the scanning element by preset ratio；
Second scan module, for being scanned again according to the scanning element after diminution to the cell across the vector boundary,
Obtain multiple cells；
Second logging modle, for the value for the cell being within the vector boundary to be denoted as to the grid of the vector data
Attribute value；
Area judgment module judges for the area to the scanning element, if the area of the scanning element is greater than
The area of the minimum grid, then return to the area step that the scanning element is reduced by preset ratio；
Third logging modle will if the area for the scanning element is less than or equal to the area of the minimum grid
Across the vector boundary cell maximum area as its grid attribute value.
6. data conversion device as claimed in claim 5, which is characterized in that the maximum area is the whole of the minimum area
Several times.
7. data conversion device as claimed in claim 6, which is characterized in that the maximum area is the face of the maximum grid
Long-pending integral multiple；The minimum area is the integral multiple of the area of the minimum grid.
8. data transfer device as claimed in claim 7, which is characterized in that times of the maximum area and the minimum area
Number, the multiple with the maximum area and the area of the maximum grid, at the relationship of integral multiple；
The multiple of the maximum area and the minimum area, times with the minimum area and the area of the minimum grid
Number, at the relationship of integral multiple.
9. a kind of electronic equipment, including processor, the memory being connect with the processor signal, which is characterized in that the storage
Storage is for storing computer program or instruction, and the processor is for executing the computer program or instruction, so that described
Electronic equipment executes data transfer device, and the data transfer device includes the following steps:
The maximum area and minimum area for calculating vector data to be converted determine maximum grid, root according to the maximum area
Minimum grid is determined according to the minimum area, using the maximum grid as scanning element；
The vector data is scanned according to the scanning element, obtains multiple cells；
The value of cell within a vector boundary in the vector data is denoted as to the grid category of the vector data
Property value；
The area of the scanning element is reduced by preset ratio；
The cell across the vector boundary is scanned again according to the scanning element after diminution, obtains multiple cells；
The value of cell within the vector boundary is denoted as to the grid attribute value of the vector data；
The area of the scanning element is judged, if the area of the scanning element is greater than the face of the minimum grid
Product then returns to the area step that the scanning element is reduced by preset ratio；
If the area of the scanning element is less than or equal to the area of the minimum grid, the vector boundary will be crossed over
The maximum area of cell is as its grid attribute value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811513666.1A CN109829019B (en) | 2018-12-11 | 2018-12-11 | Data conversion method and device of vector data and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811513666.1A CN109829019B (en) | 2018-12-11 | 2018-12-11 | Data conversion method and device of vector data and electronic equipment |
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| CN109829019A true CN109829019A (en) | 2019-05-31 |
| CN109829019B CN109829019B (en) | 2021-08-20 |
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| CN201811513666.1A Active CN109829019B (en) | 2018-12-11 | 2018-12-11 | Data conversion method and device of vector data and electronic equipment |
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