CN107357623A - A kind of Part-redraw method and system based on multi-layer image - Google Patents
A kind of Part-redraw method and system based on multi-layer image Download PDFInfo
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- CN107357623A CN107357623A CN201710597272.8A CN201710597272A CN107357623A CN 107357623 A CN107357623 A CN 107357623A CN 201710597272 A CN201710597272 A CN 201710597272A CN 107357623 A CN107357623 A CN 107357623A
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- 230000006870 function Effects 0.000 description 3
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
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- G—PHYSICS
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Abstract
The invention discloses a kind of Part-redraw method and system based on multi-layer image, method for drafting includes：Market data display figure layer is split as historical data figure layer and real time data figure layer two parts；Historical data interface is defined, defines Real-time data interface, the data obtained by different interfaces form corresponding data layer；Cycle T is set, full dose refreshing is done to historical data figure layer, real time data refreshing is carried out to real time data figure layer；Drafting is overlapped to the historical data figure layer and real time data figure layer of refreshing.The present invention is by using modes such as double buffering, multi-layer images, data display in market figure is split into historical data and the two-part figure layer of real time data, in a certain specific period, only do the refreshing of a full dose in historical data part, newest a part of data are refreshed in real time data part in real time, and drawing modification is overlapped to two figure layers；The data volume refreshed during real time propelling movement is effectively reduced, ensures the real-time of data, reduces the consumption to CPU.
Description
Technical field
The present invention relates to MFC drafting refresh technique field, in particular it relates to a kind of Part-redraw based on multi-layer image
Method and system, mass data is drawn in particular for high frequency.
Background technology
Under the overall background of existing internet finance and economic globalization, in the transaction of fast changing stock, gold
To the requirement more and more higher of the real-time accuracy of market.Real-time market turn into an important rigid bar of smooth the trade
Part.In existing technology, using the mode of periodic refreshing, reduction market figure refreshing frequency, which reaches, takes into account CPU usage and refreshing
The method of frequency has not applied to the data promptness of existing big market.There is the mode that whole screen refreshes in time in addition, to service
Device data are not limited, and are refreshed monoblock market figure in real time, although can so reach real-time display, CPU can be caused too high
Pressure, influence transaction etc. other programs normal use.In order to solve the above-mentioned problem present in market software, proposition office
The technology that portion is refreshed.While ensureing that present quotation refreshes displaying, CPU utilization rate is taken into account, ensures the smooth operation of system.
On the whole existing technical scheme is divided into two kinds.The first scheme is carried out to one second data several times of server push
Caching, and refresh not in time, but by the timer of software inhouse come the refreshing frequency of control data.This obvious scheme is nothing
Method is implemented to show data, it is possible to allows client to miss fast changing market, the judgement of mistake is produced in transaction, causing can not
The loss of appraisal.Second scheme is using the method that refreshes in real time, on the data real-time exhibition of server push to market figure
Go, such as Application No.：201310398862.X entitled " view method for refreshing and device ", the method comprising the steps of：Obtain
To the refresh requests of list in view；The refresh tasks of the list are added to the queue pre-established according to the refresh requests
In；The refresh tasks are extracted successively from the queue using the thread of predetermined quantity to be loaded, and obtain loading the brush
The data of new task, wherein, the data of the refresh tasks of loading are stored using weak reference；Appointed according to the refreshing of loading
View described in the Refresh Data of business.This scheme can guarantee that the real-time of market, but in high frequency market and market overabundance of data
In the case of, method that whole screen market figure refreshes can cause CPU using too high, and now transaction and the operation of other software all can be by
To different degrees of influence, to configuring not high PC it is also possible to causing the seemingly-dead situation of system, it can not ensure that user's is normal
Transaction.
The content of the invention
For it is above-mentioned in the prior art the defects of, the present invention propose a kind of Part-redraw method based on multi-layer image and be
System.
The present invention is realized according to following technical scheme：
A kind of Part-redraw method based on multi-layer image, comprises the following steps：
Step S1：Market data display figure layer is split as historical data figure layer and real time data figure layer two parts, in real time
Accumulated in data Cun Chudao cachings, as historical data；
Step S2：Historical data interface is defined, defines Real-time data interface, the data obtained by different interfaces are formed
Corresponding data layer；
Step S3：Cycle T is set, full dose refreshing is done to historical data figure layer in a cycle T, first empties current history
Data layer, then recalculates historical data, then draws the historical data figure layer of refreshing, and real time data figure layer is carried out
Real time data refreshes, and server once issues data, then triggering renewal real time data figure layer；
Step S4：Drafting is overlapped to the historical data figure layer and real time data figure layer of refreshing, wherein, historical data figure
Layer and real time data figure layer are all located at the upper strata of Background From Layer, and the difference Background From Layer includes background color, coordinate, as most
The figure layer of bottom covers whole screen, the historical data figure layer covering part screen, the real time data figure layer covering residue
Part of screen.
In above-mentioned technical proposal, the step S1 includes：The historical data of the historical data figure layer is postponed by accumulation
Deposit middle acquisition, historical data figure layer be current time node before data, the real time data figure layer is without caching, directly
Issue to obtain real time data from server, real time data figure layer is the data of current time node.
In above-mentioned technical proposal, the cycle T in the step S3 includes one minute, one day, one week or 1 year.
The invention also provides a kind of Part-redraw system based on multi-layer image, including：
Figure layer splits module：For market data display figure layer to be split as into historical data figure layer and real time data figure layer two
Part, real-time data memory are accumulated into caching, as historical data；
Data definition interface module；For defining historical data interface, Real-time data interface is defined, passes through different interfaces
Obtained data form corresponding data layer；
Figure layer refresh module：Cycle T is set, full dose refreshing is done to historical data figure layer in a cycle T, first empties and works as
Preceding historical data figure layer, then recalculates historical data, then draws the historical data figure layer of refreshing, and to real time data figure
Layer carries out real time data refreshing, and server once issues data, then triggering renewal real time data figure layer；
Map overlay module：Drafting is overlapped to the historical data figure layer and real time data figure layer of refreshing, wherein, history
Data layer and real time data figure layer are all located at the upper strata of Background From Layer, and the difference Background From Layer includes background color, coordinate,
Figure layer as the bottom covers whole screen, the historical data figure layer covering part screen, and the real time data figure layer is covered
Cover remaining part of screen.
In above-mentioned technical proposal, the historical data of the historical data figure layer is obtained by accumulating from caching, history number
Data before being current time node according to figure layer, the real time data figure layer directly issue without caching from server
To real time data, real time data figure layer is the data of current time node.
In above-mentioned technical proposal, the cycle T in the figure layer refresh module includes：One minute, one day, one week or one
Year.
The present invention compared with prior art, has the advantages that：
Method in the present invention splits into the data display in market figure by using modes such as double buffering, multi-layer images
Historical data and the two-part figure layer of real time data, in a certain specific period, the brush of a full dose is only made in historical data part
Newly, newest a part of data are refreshed in real time data part in real time, are then overlapped drawing modification to two figure layers；Effectively subtract
Lack the data volume refreshed during real time propelling movement, ensured the real-time of data, greatly reduce the consumption to CPU again.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the flow chart of the Part-redraw method provided by the invention based on multi-layer image.
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, some changes and improvements can also be made.These belong to the present invention
Protection domain.
As shown in figure 1, a kind of Part-redraw method based on multi-layer image of the present invention, comprises the following steps：
Step S1：Market data display figure layer is split as historical data figure layer and real time data figure layer two parts, in real time
Accumulated in data Cun Chudao cachings, as historical data；
Step S2：Historical data interface is defined, defines Real-time data interface, the data obtained by different interfaces are formed
Corresponding data layer；
Step S3：Cycle T is set, full dose refreshing is done to historical data figure layer in a cycle T, first empties current history
Data layer, then recalculates historical data, then draws the historical data figure layer of refreshing, and real time data figure layer is carried out
Real time data refreshes, and server once issues data, then triggering renewal real time data figure layer；
Step S4：Drafting is overlapped to the historical data figure layer and real time data figure layer of refreshing, wherein, historical data figure
Layer and real time data figure layer are all located at the upper strata of Background From Layer, and the difference Background From Layer includes background color, coordinate, as most
The figure layer of bottom covers whole screen, the historical data figure layer covering part screen, the real time data figure layer covering residue
Part of screen.
Step S1 includes：The historical data of the historical data figure layer is obtained by accumulating from caching, historical data figure
Layer is the data before current time node, and the real time data figure layer directly issues to obtain reality without caching from server
When data, real time data figure layer be current time node data.
Cycle T in step S3 includes one minute, one day, one week or 1 year.
The invention also provides a kind of Part-redraw system based on multi-layer image, including：
Figure layer splits module：For market data display figure layer to be split as into historical data figure layer and real time data figure layer two
Part, real-time data memory are accumulated into caching, as historical data；
Data definition interface module；For defining historical data interface, Real-time data interface is defined, passes through different interfaces
Obtained data form corresponding data layer；
Figure layer refresh module：Cycle T is set, full dose refreshing is done to historical data figure layer in a cycle T, first empties and works as
Preceding historical data figure layer, then recalculates historical data, then draws the historical data figure layer of refreshing, and to real time data figure
Layer carries out real time data refreshing, and server once issues data, then triggering renewal real time data figure layer；
Map overlay module：Drafting is overlapped to the historical data figure layer and real time data figure layer of refreshing, wherein, history
Data layer and real time data figure layer are all located at the upper strata of Background From Layer, and the difference Background From Layer includes background color, coordinate,
Figure layer as the bottom covers whole screen, the historical data figure layer covering part screen, and the real time data figure layer is covered
Cover remaining part of screen.
The historical data of historical data figure layer is obtained by accumulating from caching, and historical data figure layer is current time node
Data before, the real time data figure layer directly issue to obtain real time data, real time data figure without caching from server
Layer is the data of current time node.
Cycle T in figure layer refresh module includes：One minute, one day, one week or 1 year.Specifically, can according to
Family use habit is artificially set.
More detailed explanation is done to the technical scheme in the present invention with reference to specific embodiment.
During the same day/more bus, in the market figure of 1 minute K line chart, the present invention has been used.Wherein in newest timing node
Data before split into the figure layer of historical data, and the data of current minute are as real time data figure layer.In data-pushing process
In, only current minute a data refreshes in real-time calculate, and other data need not do extra processing, directly be folded
Add.When the time going to next minute, the figure layer of a historical data is now updated, execution is once redrawn, and hereafter one
Without doing any calculating and plotting flow again in minute.
During the macrocyclic K lines market figures such as day K, all K are drawn, historical data is equally made historical data layer, whole
In cycle (one minute, one day, one week or 1 year), this data Layer need not do any calculating and plotting flow again.More support
The sentiment undertone of a very long time section is checked, checks that up to ten thousand K line numbers bring pressure according to all without to CPU.
The real-time of market data display can be ensured using the Part-redraw method provided by the invention based on multi-layer image,
Solve the problems, such as that occupancy CPU usage is too high in refresh process.The present invention uses double buffering technology, and whole screen textures are drawn, avoided
Software splashette flower screen, the increase and decrease superposition of figure layer can be carried out according to demand, it is more flexible on image procossing.
The content of historical data figure layer, real time data figure layer, first first finished on painting canvas (, current screen is then pasted again,
Step is so drawn when processing, current screen will not dodge.
It should be noted that the step in the Part-redraw method based on multi-layer image provided by the invention, Ke Yili
It is achieved with corresponding module, device, unit etc. in the Part-redraw system based on multi-layer image, those skilled in the art
The technical scheme for being referred to the system realizes the step flow of methods described, i.e. the embodiment in the system is appreciated that
To realize the preference of methods described, will not be described here.
One skilled in the art will appreciate that except realizing system provided by the invention in a manner of pure computer readable program code
And its beyond each device, completely can by by method and step carry out programming in logic come system provided by the invention and its
Each device is in the form of gate, switch, application specific integrated circuit, programmable logic controller (PLC) and embedded microcontroller etc.
To realize identical function.So system provided by the invention and its every device are considered a kind of hardware component, and it is right
What is included in it is used to realize that the device of various functions can also to be considered as the structure in hardware component；It will can also be used to realize respectively
The device of kind of function, which is considered as, not only can be the software module of implementation method but also can be the structure in hardware component.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make a variety of changes or change within the scope of the claims, this not shadow
Ring the substantive content of the present invention.In the case where not conflicting, the feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (6)
- A kind of 1. Part-redraw method based on multi-layer image, it is characterised in that comprise the following steps：Step S1：Market data display figure layer is split as historical data figure layer and real time data figure layer two parts, real time data Store in caching and accumulated, as historical data；Step S2：Historical data interface is defined, defines Real-time data interface, the data obtained by different interfaces are formed accordingly Data layer；Step S3：Cycle T is set, full dose refreshing is done to historical data figure layer in a cycle T, first empties current historical data Figure layer, then recalculates historical data, then draws the historical data figure layer of refreshing, and real time data figure layer is carried out real-time Refresh Data, server once issue data, then triggering renewal real time data figure layer；Step S4：Drafting is overlapped to the historical data figure layer and real time data figure layer of refreshing, wherein, historical data figure layer and Real time data figure layer is all located at the upper strata of Background From Layer, and the Background From Layer includes background color, coordinate, and the figure layer as the bottom is covered Whole screen, the historical data figure layer covering part screen are covered, the real time data figure layer covers remaining part of screen.
- 2. the Part-redraw method according to claim 1 based on multi-layer image, it is characterised in that the step S1 includes： The historical data of the historical data figure layer is obtained by accumulating from caching, before historical data figure layer is current time node Data, the real time data figure layer directly issues to obtain real time data, real time data figure layer is without caching from server The data of current time node.
- 3. the Part-redraw method according to claim 1 based on multi-layer image, it is characterised in that the week in the step S3 Phase T includes one minute, one day, one week or 1 year.
- A kind of 4. Part-redraw system based on multi-layer image, it is characterised in that including：Figure layer splits module：For market data display figure layer to be split as into historical data figure layer and real time data figure layer two Point, real-time data memory is accumulated into caching, as historical data；Data definition interface module；For defining historical data interface, Real-time data interface is defined, is obtained by different interfaces Data form corresponding data layer；Figure layer refresh module：Cycle T is set, full dose refreshing is done to historical data figure layer in a cycle T, first empties and currently goes through History data layer, then recalculates historical data, then draws the historical data figure layer of refreshing, and real time data figure layer is entered Row real time data refreshes, and server once issues data, then triggering renewal real time data figure layer；Map overlay module：Drafting is overlapped to the historical data figure layer and real time data figure layer of refreshing, wherein, historical data Figure layer and real time data figure layer are all located at the upper strata of Background From Layer, and the difference Background From Layer includes background color, coordinate, as The figure layer of the bottom covers whole screen, the historical data figure layer covering part screen, and the real time data figure layer covering remains Remaining part of screen.
- 5. the Part-redraw system according to claim 4 based on multi-layer image, it is characterised in that the historical data figure layer Historical data obtained by accumulating from caching, historical data figure layer be current time node before data, it is described in real time Data layer directly issues to obtain real time data, real time data figure layer is current time node without caching from server Data.
- 6. the Part-redraw system according to claim 4 based on multi-layer image, it is characterised in that the figure layer refresh module In cycle T include：One minute, one day, one week or 1 year.
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| CN108399090A (en) * | 2018-02-08 | 2018-08-14 | 广东欧珀移动通信有限公司 | Visibility method for refreshing, device, storage medium and intelligent terminal |
| CN109491654A (en) * | 2018-09-18 | 2019-03-19 | 西安葡萄城信息技术有限公司 | A kind of table method for drafting and system based on HTML5 Canvas |
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| CN113741380A (en) * | 2021-11-08 | 2021-12-03 | 西安热工研究院有限公司 | DCS monitoring picture refreshing method, system and equipment and readable storage medium |
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Application publication date: 20171117 |
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