CN109271470A - A kind of geologic survey GIS data processing method and system - Google Patents
A kind of geologic survey GIS data processing method and system Download PDFInfo
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Abstract
It include that the vector format file of dot file, line file and face file produces request for sending the system comprises vector format document handling unit this application discloses a kind of geologic survey GIS data processing method and system；Date Conversion Unit, for receive it is described produce request, the vector format file is handled, and is exported information is handled；External exchange format document handling unit, for receiving the output information, and generates clear file or binary file.The invention has the advantages that realizing simply, the information such as coordinate, attribute needed for vector format, parameter are expressed.It can be applied to carry out data exchange between other systems platform, so that the achievement of geologic survey GIS data processing system can be used in other systems platform.Be widely used, meet Mainstream Platform can obtain, using and share this platform geological researching data needs.
Description
Technical field
The present invention relates to a kind of geologic survey GIS data processing method and systems.
Background technique
Currently, the file format of geologic survey GIS platform is encryption format, in order to enable Mainstream Platform to obtain, utilize
And the geological researching data of this platform is shared, a kind of data format that can be shown as in plain text is needed for geologic survey personnel
It obtains, to be used in other platforms.
Summary of the invention
The purpose of the present invention is to overcome the above shortcomings and to provide a kind of geologic survey GIS data processing methods, can be complete
Face meets the application demand of each field geologic survey.
To achieve the goals above, the technical solution adopted by the present invention are as follows: a kind of geologic survey GIS data processing system,
It is characterised by comprising: vector format document handling unit, for sending the vector including dot file, line file and face file
Formatted file produces request；Date Conversion Unit, for receive it is described produce request, at the vector format file
Reason, and processing information is exported；External exchange format document handling unit, for receiving the output information, and generates
Clear file.
Another object of the present invention, which also resides in, provides a kind of geologic survey GIS data processing method, which is characterized in that packet
Include: vector format file of the vector format document handling unit transmission including dot file, line file and face file produces request；
Date Conversion Unit produces request described in receiving, and the vector format file is handled, and processing information is exported；
External exchange format document handling unit receives the output information, and generates clear file.
Another object of the present invention, which also resides in, provides a kind of geologic survey GIS data processing system, which is characterized in that packet
It includes: vector format document handling unit, for sending producing for the vector format file including dot file, line file and face file
Request；Date Conversion Unit, for receive it is described produce request, the vector format file is handled, and will processing letter
Breath is exported；External exchange format document handling unit, for receiving the output information, and generates binary file.
Another object of the present invention, which also resides in, provides a kind of geologic survey GIS data processing method, which is characterized in that packet
Include: vector format file of the vector format document handling unit transmission including dot file, line file and face file produces request；
Date Conversion Unit produces request described in receiving, and the vector format file is handled, and processing information is exported；
External exchange format document handling unit receives the output information, and generates binary file.
Another object of the present invention, which also resides in, provides a kind of geologic survey GIS data processing method, which is characterized in that packet
Include: external exchange format document handling unit transmission clear file produces request；It produces and asks described in Date Conversion Unit reception
It asks, the clear file is handled, and processing information is exported；Vector format document handling unit receives described defeated
Information out, and generate the vector format file including dot file, line file and face file.
Another object of the present invention, which also resides in, provides a kind of geologic survey GIS data processing method, which is characterized in that packet
Include: what external exchange format document handling unit sent binary file produces request；Date Conversion Unit produces described in receiving
Request, the binary file is handled, and processing information is exported；Vector format document handling unit receives institute
Output information is stated, and generates the vector format file including dot file, line file and face file.
The invention has the benefit that
First, it realizes simple, vector format document handling unit, includes dot file, line file and face file for sending
Vector format file produce request；Date Conversion Unit, for receive it is described produce request, by the vector format file
It is handled, and processing information is exported；External exchange format document handling unit, for receiving the output information,
And clear file or binary file are generated, express the information such as coordinate, attribute needed for vector format, parameter.It can answer
For carrying out data exchange between other systems platform, so that geologic survey GIS data can be used in other systems platform
The achievement of processing system.
Second, it is widely used, clear file is a kind of form of external swap file.Containing useful standard ascii character-set
The structure of the data and text file of the character of coding, file is made of a series of File header information comprising keywords.Externally
Ascii text file stores the file information, projection information, workspace information, spatial information, parameter information, attribute information.Binary system
File is also a kind of form of external swap file.Interior data is with 0,1 filling.External binary file is stored by several
The file information, projection information, workspace information, spatial information, parameter information, attribute information (sequence fixed) structural body and
Other data composition.Meet Mainstream Platform and can obtain, using and share this platform geological researching data needs.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is geologic survey GIS data processing system structural schematic diagram of the invention；
Fig. 2 is external ascii text file structural schematic diagram of the invention；
Fig. 3 is external binary file structural schematic diagram of the invention；
Fig. 4 is external file reading process method flow diagram of the invention；
Fig. 5 is external file writing process method flow diagram of the invention；
Fig. 6 is external ascii text file reading process method flow diagram of the invention；
Fig. 7 is external binary file reading process method flow diagram of the invention；
Fig. 8 is the process approach flow chart that internal form of the invention is converted into external file；
Fig. 9 is the conversion process method flow diagram of internal file format and external binary file of the invention.
Specific embodiment
As used some vocabulary to censure specific components in the specification and claims.Those skilled in the art answer
It is understood that hardware manufacturer may call the same component with different nouns.This specification and claims are not with name
The difference of title is as the mode for distinguishing component, but with the difference of component functionally as the criterion of differentiation.Such as logical
The "comprising" of piece specification and claim mentioned in is an open language, therefore should be construed to " include but do not limit
In "." substantially " refer within the acceptable error range, those skilled in the art can within a certain error range solve described in
Technical problem basically reaches the technical effect.Specification subsequent descriptions are to implement the better embodiment of the application, so described
Description is being not intended to limit the scope of the present application for the purpose of the rule for illustrating the application.The protection scope of the application
As defined by the appended claims.
Please refer to Fig. 1, geologic survey GIS data processing system of the invention, comprising: vector format document handling unit
101, it include that the vector format file of dot file, line file and face file produces request for sending；Date Conversion Unit
102, for receive it is described produce request, the vector format file is handled, and is exported information is handled；Externally
Exchange format document handling unit 103 for receiving the output information, and generates clear file.
Geologic survey GIS data processing method of the invention, comprising: it includes point text that vector format document handling unit, which is sent,
The vector format file of part, line file and face file produces request；Date Conversion Unit produces request described in receiving, will be described
Vector format file is handled, and processing information is exported；External exchange format document handling unit receives described defeated
Information out, and generate clear file.
Preferably, the method specifically includes: calling corresponding text according to the external swap file format of geological researching data
Part reader is read the file cephalomere of the external swap file by the document reader；Workspace is created, according to current work
The external swap file format of geological researching data for making foundation when area's type and current platform conversion export, by corresponding letter
Breath is output to the file cephalomere；According to the projection information of presently described workspace, histoprojections supplemental characteristic, according to specified knot
Structure is output in the external swap file of geological researching data；According to factor data in the workspace, by its space, attribute and ginseng
Number data are sequentially output in the external swap file of geological researching data；Output file periproct completes processing work.
Geologic survey GIS data processing system of the invention, comprising: vector format document handling unit, for sending packet
Include the vector format file of dot file, line file and face file produces request；Date Conversion Unit, for receiving described produce
Request, the vector format file is handled, and processing information is exported；External exchange format file process list
Member for receiving the output information, and generates binary file.
Geologic survey GIS data processing method of the invention, comprising: it includes point text that vector format document handling unit, which is sent,
The vector format file of part, line file and face file produces request；Date Conversion Unit produces request described in receiving, will be described
Vector format file is handled, and processing information is exported；External exchange format document handling unit receives described defeated
Information out, and generate binary file.
Preferably, the method specifically includes: the data of organization internal file format；The data deposit for needing to convert is used
In the structural body of write-in geological researching data file；All data is successively written into file with binary system writing mode.
Geologic survey GIS data processing method of the invention, comprising: external exchange format document handling unit sends plain code
File produces request；Date Conversion Unit produces request described in receiving, and the clear file is handled, and processing is believed
Breath is exported；Vector format document handling unit receives the output information, and generating includes dot file, line file and face text
The vector format file of part.
Method of the invention specifically includes: reading File header information, is called and corresponded to according to geological researching data FileVersion
Geological researching data document reader corresponding workspace is initialized according to the type of export；Projection information is read,
Projection operation is carried out to workspace；Each element information is read, is loaded data into memory；According to the factor data of memory, Xiang Gong
Make to add each element in area, carries out drafting operation.
Geologic survey GIS data processing method of the invention, comprising: external exchange format document handling unit send two into
File processed produces request；Date Conversion Unit produces request described in receiving, and the binary file is handled, and will place
Reason information is exported；Vector format document handling unit receives the output information, and generate include dot file, line file and
The vector format file of face file.
Preferably, the method specifically includes: reading the file information, is called and corresponded to according to geological researching data FileVersion
Geological researching data document reader corresponding workspace is initialized according to the type of export；Projection information is read,
Projection operation is carried out to workspace；All types of workspace data are read, according to the length for the follow-up data to be read specified in data
Degree, is successively read the data of specified digit, and load data into memory；According to the factor data of memory, into workspace
Each element is added, drafting operation is carried out.
It is externally the external exchange format that DGSGIS system provides, is divided into ascii text file and two kinds of binary file,
Express the information such as coordinate, attribute, parameter needed for the vector format of ground DGSGIS system.It can be applied to and other systems
Between carry out data exchange so that other systems can be used DGSGIS system data processing achievement.
It is divided into following steps for external ascii text file reading process to carry out: File header information is 1. read, according to right
Outer FileVersion calls corresponding external document reader to initialize corresponding workspace according to the type of export；2. reading
Projection information is taken, projection operation is carried out to workspace；3. reading each element information, load data into memory；4. according to memory
Factor data, each element is added into workspace, carries out the operation such as drawing.
It is divided into following steps for external binary file reading process to carry out: the file information is 1. read, according to right
Outer FileVersion calls corresponding external document reader to initialize corresponding workspace according to the type of export；2. reading
Projection information is taken, projection operation is carried out to workspace；3. all types of workspace data are read, it is to be read according to what is specified in data
The length of follow-up data, is successively read the data of specified digit, and loads data into memory；4. wanting prime number according to memory
According to adding each element into workspace, carry out the operation such as drawing.
The process that internal form is converted into external file is divided into following steps progress: 1. according to work at present area class
The external file format version of foundation, is output to external file for corresponding information when type and current platform conversion export
Export cephalomere；2. according to work at present area projection information, histoprojections supplemental characteristic is output to external file according to specified structure
In；3. its space, attribute and supplemental characteristic are sequentially output in external file according to factor data in workspace；4. exporting
File periproct completes transformation.
For external binary file, essence is one group and contains the structural body and other letters of data needed for platform
Breath composition.Therefore internal file format and the conversion of external binary file can carry out as follows: 1. organization internal text
The data of part format；2. the data converted deposit will be needed to be used to be written in the structural body of external file；3. being written with binary system
All data is successively written in mode into file.
It preferably, is carefully two major classes by external file: ascii text file and binary file.Every class file be divided into again point,
Line, face file.On the basis of former point, line, surface file corresponds to suffix name * .tm, * .lm, * .pm, the corresponding extension of external file
Name design scheme is (in suffix name, a represents ASCII, and b represents BINARY (binary system)) as shown in table 1:
The external file format of table 1
Preferably, binary file is a kind of form of external swap file.Interior data is with 0,1 filling.External two
Binary file stores the file information, projection information, workspace information, spatial information, parameter information, attribute information by several
The structural body and other data composition of (sequence is fixed).
Preferably, externally have in different derived type files identical structure division have the file information, projection information and
Attribute information.Shown in its specific data is defined as follows:
Embodiment 1,
File information structure body:
Embodiment 2
Projection information structural body:
Embodiment 3
Attribute head information structure:
Attribute structure information structure:
Attribute list record data arrangement after attribute structure information structure, one record by attribute structure sequence according to
Secondary arrangement.Field type and field character length determine the length of each value, until all arrangement finishes all records.
In addition to this three parts corporate data, point, line, surface file all has its distinctive data, below will be to all types of
The peculiar data of file be introduced.
As specific embodiment, for dot file, also need the data being written into file be workspace information,
Space of points information, point parameter information.Being defined as follows for its data is shown.
Embodiment 4
Coordinate frame body
Embodiment 5
Point workspace information structure:
Embodiment 6
Space of points information structure:
If vertex type is annotation point, space of a whole page point, combined spot, according to the iTextLength numerical values recited in PNT_GEO,
By the character arrangements of corresponding length after space of points information structure.
Embodiment 7
Point parameter information structural body:
As specific embodiment, for line file, also need the data being written into file be line workspace information,
Space of lines information, line parameter information.Being defined as follows for its data is shown.
Embodiment 8
Line workspace information structure
Embodiment 9
Space of lines information structure:
Space of lines information structure followed by 1DotNum D_DOT structural body store the coordinate data put on line.
Embodiment 10
Line parameter information structural body:
As specific embodiment, for the file of face, also need the data being written into file be face workspace information,
Space of planes information, point parameter information.Being defined as follows for its data is shown.
Embodiment 11
Face workspace information structure:
Embodiment 12
Segmental arc spatial information structural body:
Segmental arc spatial information structural body followed by 1DotNum D_DOT structural body store the coordinate data put in segmental arc.
Embodiment 13
Node spatial information structural body:
Node spatial information structural body followed by lArcNum long categorical data, to pass through all segmental arcs number of the point.
Embodiment 14
Space of planes information structure
Space of planes information structure followed by lArcNum long categorical data, for the segmental arc number for forming the face.
Embodiment 15
Line parameter information structural body:
As specific embodiment, clear file is also a kind of form of external swap file.Containing useful standard ASCII word
The data and text file of the character of symbol collection coding, the structure of file are made of a series of File header information comprising keywords.
External ascii text file stores the file information, projection information, workspace information, spatial information, parameter information, attribute information.
External ASCII fromat structure has been largely divided into five sections, is export cephalomere, GEO section, ATT section, PAR respectively
Section and export periproct.The read-write and conversion of external ASCII fromat will be carried out in strict accordance with the sequence of this five section.
As specific embodiment, external export cephalomere is by 4 group identifiers at respectively representing file header
Identifier "@EXP ", compressing mark, file type mark and externally file format version identifier.Wherein, when compressing mark is 1
Compressed file is represented, represents uncompressed file when being 0；File type ident value represents export as dot file when being TM, LM
Line file is represented, PM represents face file, and external file format version identifier is used to determine the format version of current export foundation
This.Here is an example of export cephalomere.
$EXP 1 PM 2
Embodiment 16
GEO section is the second section of external export, stores spatial information and projection information of point-line-surface element etc..
There are several segments in the section.Not all section can all occur in this.Each section in GEO section, all with "@" and one three
The section name of letter starts, and each section all with "@END " for end identifier.
2 PRJ sections of projection information composition figure of table
PRJ sections:
PRJ sections are made of the projection information in file.It is as shown in table 2 PRJ sections of projection information composition figures.
PNT sections:
PNT sections are made of series of points information, and only appearing in derived type is in external file a little.Every group is one
Point information is made of point number, vertex type, point coordinate X value, Y value.Annotation point is represented for vertex type, 0,1 represents subgraph point, 2 generations
Table dot, 3 represent acnode, and 4 representative image points, 5 represent space of a whole page point, and 6 represent combined spot.Annotation point, space of a whole page point, in combined spot
The image path quoted in content of text and picture point follows closely after coordinate information.The content of space of a whole page point can enter a new line, with "
EOT " is the end of identification of space of a whole page point content.The text of combined spot carries out segment processing with spcial character, and segment number is passed since 0
Increase.It is below one PNT sections of example.
@PNT
1 0 3.40200000000000E+05 4.10000000000000E+06
This is a note.
2 1 3.40200010000000E+02 4.10000002000000E+01
3 2 3.40200000000000E+02 4.10000006000000E+01
4 3 3.40200000500000E+02 4.10000000000000E+01
5 4 3.40200200000000E+02 4.10000001000000E+01
D:/img_sample.jpg
6 5 3.40200000007000E+02 4.10002000000000E+01
This is a text.
Multiline.
Test it.
@EOT
7 6 3.40200000020000E+02 4.10004000000000E+01
This is a combination point.#+up#-down#=end
@END
LIN sections:
LIN sections are made of a series of line information, only appear in the external file that derived type is line.Every group is one
A line information.Every group of the first row is made of two numbers, is wire size, line coordinates number respectively.Every group of the second row starts as line
The X of upper coordinate, Y value, each coordinate occupy a line.It is below one LIN sections of example.
@LIN
1 3
3.40200000000000E+05 4.10000000000000E+06
3.40300000000000E+05 4.10020000000000E+06
3.40500000000000E+05 4.10020000000000E+06
2 1
3.40100000000000E+05 4.10020000000000E+06
@END
ARC sections:
ARC sections are made of a series of segmental arc information, only appear in the external file that derived type is face.Each group
For a segmental arc information.Every group of the first row is all made of 7 numbers.It is segmental arc number respectively, originates point number, terminates point number,
The segmental arc left side number, the segmental arc right side number, segmental arc Zuoquan weight, the right weight of segmental arc, segmental arc number of coordinates.Every group of the second row starts as segmental arc
The X of upper coordinate, Y value, each coordinate occupy a line.It is below one ARC sections of example.
@ARC
1 0 0 0 0 3 6 3
3.40200000000000E+05 4.10000000000000E+06
3.40300000000000E+05 4.10020000000000E+06
3.40500000000000E+05 4.10020000000000E+06
2 2 6 0 0 2 1 1
3.40100000000000E+05 4.10020000000000E+06
@END
NOD sections:
NOD sections are made of a series of node information in segmental arcs, only appear in the external file that derived type is face.Often
Group is a node information.Every group 3 number compositions of the first row, are node number, node X-coordinate, node Y coordinate respectively；The
Segmental arc number composition of two behaviors by the segmental arc number of the node and followed by, is one NOD sections of example below.
@NOD
1 3.40100000000000E+05 4.10020000000000E+06
3 1 2 3
2 3.40200000000000E+05 4.10000000000000E+06
5 4 5 6 7 8
@END
REG sections:
REG sections are made of a series of face information, only appear in the external file that derived type is face.Every group is one
A face information is made of the segmental arc number and the segmental arc number of sequence clockwise immediately after that form the face, and segmental arc number is that positive value represents
It is positive segmental arc, is then reversed segmental arc if negative value.It is below one REG sections of example.
@REG
3 -1 2 3
2 5 6
@END
ATT section
ATT section is the third section of external export, stores the attribute list data of point-line-surface element.AAT section is divided into
Tri- sections of PAT, LAT, RAT, the attribute information of point, line, surface element is stored respectively.ATT section in each section possess it is identical
Format is divided into three parts.Using PAT shown in following sections as example.
@PAT
4 2
PNT#3 10 0
ID 3 6 0
Name 1
Price 4
1 12@$POINT 1@$304.5
2 11@$POINT 2@$112.7
@END
First part stores Field Count in the attribute list and record number, and 4 to represent Field Count in the attribute list be 4
A, 2, which represent the attribute list, shares 2 records；Second part stores the field information in the attribute list, by field contents and word
Segment type composition.For example, " PNT# " represents a point record number field, 3 represent the field type as long type, each field type and
Numerical value corresponding relationship is detailed in " definition of attribute data field type ", and 10 represent for character string data, shows 10 characters, 0 generation
The display decimal digits of table float；Part III is the record data in attribute list, one group of a behavior data, according to word
The sequencing of segment information, arranges from left to right.Note that "@$ " symbol will be used to be included TEXT categorical data
It is interior.
Each section in AAT section will not occur simultaneously.PAT sections appear in the external file for exporting as vertex type, and LAT sections
It appears in the external file for exporting as line type, and RAT sections then appear in the external file for exporting as noodles type.AAT sections
The corresponding data of the field of the customized addition of user can be saved.Meanwhile for PAT sections, PNT# and ID are the section
The field that there must be, LIN#, ID and LENGTH are the LAT sections of fields that there must be, and in RAT sections, REG#, ID, AREA
There must be with PERIMETER field.
PAR section
PAR section is Section four of external export, stores the parameter list data of point-line-surface element, is divided into NPT,
Nine sections of SPT, CPT, APT, IPT, TPT, GPT, LPT and RPT, not all section requires to appear in PAR section.In PAR section
Each section, all started with "@" and a triliteral section of name, each section all with "@END " for end identifier.
NPT sections:
NPT sections store annotation point parameter information.Only appear in that derived type is a little and there are annotation points to foreign language
In part.The each group of parameter for an annotation point.Every group of the first behavior point recording mechanism, annotation height, width, interval and angle
Degree；Second behavior Chinese character style number, western language font number, annotation font number and annotation color number；The whether transparent output of third behavior
Mark, arrangement mode mark and figure layer number.
SPT sections:
SPT sections store subgraph point parameter information.Only appear in that derived type is a little and there are subgraph points to foreign language
In part.The each group of parameter for a subgraph point.By a recording mechanism, subgraph number, subgraph height, width, rotation angle, color
Number, whether transparent output identification and figure layer number form.
CPT sections:
The CPT sections of parameter informations for storing dot.Only appear in that derived type is a little and there are the external files of dot
In.The each group of parameter for a dot.By a recording mechanism, radius of circle, outline color number, wide, Fill Color number, filling side
Formula mark, whether transparent output identification and figure layer number composition.
APT sections:
The APT sections of parameter informations for storing acnode.Only appear in that derived type is a little and there are the external files of acnode
In.The each group of parameter for an acnode.By a recording mechanism, arc radius, start angle, termination point, pen be wide, arc color number,
Whether transparent output identification is formed with figure layer number.
IPT sections:
The IPT sections of parameter informations for storing picture point.Only appear in that derived type is a little and there are the external of picture point
In file.The each group of parameter for a picture point.By a recording mechanism, picture traverse, picture altitude, whether transparent output is marked
Know, figure layer number composition.
TPT sections:
The TPT sections of parameter informations for storing space of a whole page point.Only appear in that derived type is a little and there are the external of space of a whole page point
In file.Each group is a space of a whole page point parameter.Every group of the first row by a recording mechanism, annotation height, width, lateral separation, indulge
To interval, annotation angle composition；Second row is made of Chinese character style number, western language font number, annotation font number, annotation color number；
The third line is high by the space of a whole page, the space of a whole page is wide, arrangement mode mark, whether transparent output identification and figure layer number form.
GPT sections:
The GPT sections of parameter informations for storing combined spot.Only appear in that derived type is a little and there are the external of combined spot
In file.The each group of parameter for one section of annotation in a combined spot.Every group of the first row, which specifies, combines point number and segment number, and second
Behavior annotates height, width, interval and angle；Third behavior Chinese character style number, western language font number, annotation font number and annotation face
Color number；Fourth line be whether transparent output identification, arrangement mode mark with figure layer number.
LPT sections:
The LPT sections of parameter informations for storing line.It only appears in the external file that derived type is line.Each group is one
The parameter of bar line.By line recording mechanism, line style number, line color number, line width, line style number, X coefficient, Y coefficient, auxiliary line model, auxiliary
Index contour color number, whether transparent output identification and figure layer number composition.
RPT sections:
The PRT sections of parameter informations for storing face.It only appears in the external file that derived type is face.Each group is one
The parameter in a face.By face recording mechanism, Fill Color number, blank map Reference Number, pattern height, width, angle, pattern color number, it is
No transparent output identification and figure layer number composition.
Export periproct
Export periproct is using one " $ EOS " fixed identification strings as end mark.
As specific embodiment, to keep external file format designs upper more efficient in read-write, conversion speed faster, therefore
Iteration optimization has been carried out on the basis of external file format designs in design.It is as follows to update part:
Ascii text file: repartitioning file format structure is file header data, projective parameter data, space and parameter number
According to attribute structure and record four parts of data.Specific file structure is as shown in Figure 2.
Binary file: repartitioning file format structure is File header information structural body, projective parameter structural body, space
With supplemental characteristic and attribute structure and record four parts of data.Specific file structure is as shown in Figure 3.
Data definition
Support system will largely use data defined in DGSGIS system, but for simplified and supplement necessary data
Consider, partial data domain structure body is defined as follows.
#define externally _ ASCII_VERSION 1 --- external ascii text file read/write version
#define externally _ BIN_VERSION 1 --- external binary file read/write version
#define externally _ PNT_GROUP 6 --- supplement combined spot type definition
#define externally _ ASCII_TYPE 0 --- ascii text file type
#define externally _ BIN_TYPE 1 --- binary file type
Shown in the structural body that need to be supplemented is defined as follows:
Algorithm flow design
Each process that external file reads, converts is split, the algorithm flow of each process will be supported external system to design such as
Shown in Fig. 4:
Read GIS data file header；
Workspace is created according to File type；
It reads and workspace projection is set；
Read spatial data；
Read supplemental characteristic；
Add element；
Judge whether element all reads to finish；
Spatial data is read if not, returning, if so, reading attributes structure；
It is set a property data according to attribute structure；
Read record quantity；
Read record data；
Addition record data are gone to work；
Judge whether to read all record data；
Record data are read if not, returning, are finished if so, reading.
Split the opening of external ASCII and binary file, internal form file is converted into external ASCII and binary system text
What part, external ASCII and binary file were converted into internal form file is also to rely on above-mentioned external file write-in and read
Algorithm, the on its basis necessary operation of addition.
External file format supporting interface is the reading of external file, and conversion provides support.Design document format is supported
Operate the external ConvOperation of class Geo.
As specific embodiment, external file has fixed file format, referring to Fig. 6, for external ascii text file
Reading process is divided into following steps progress: 1. reading File header information, is called according to external FileVersion corresponding external
Document reader initializes corresponding workspace according to the type of export；2. reading projection information, workspace is carried out
Projection operation；3. reading each element information, load data into memory；4. being added according to the factor data of memory into workspace
Add each element, carries out the operation such as drawing.
Referring to Fig. 7, following steps are divided into for external binary file reading process and are carried out: 1. reading file letter
Breath calls corresponding external document reader to initialize corresponding work according to the type of export according to external FileVersion
Make area；2. reading projection information, projection operation is carried out to workspace；3. all types of workspace data are read, according to data middle finger
The length of fixed follow-up data to be read, is successively read the data of specified digit, and loads data into memory；4. in
The factor data deposited adds each element into workspace, carries out the operation such as drawing.
Referring to Fig. 8, as specific embodiment, converting external file for internal form is one supported external expansion
Point, so that other systems are able to use the achievement of DGSGIS platform processes data.With the reading process phase of external ascii text file
Seemingly, conversion process need to also be exported in strict accordance with external defined file structure merogenesis by section.But entire inlet flow output stream
Direction is opposite with the reading process of external file.The process that internal form is converted into external file be divided into following steps into
Row:, will be corresponding 1. according to the external file format version of foundation when work at present area type and current platform conversion export
Information is output to the export cephalomere of external file；2. according to work at present area projection information, histoprojections supplemental characteristic, according to finger
Structure output is determined into external file；3. its space, attribute and supplemental characteristic are sequentially output according to factor data in workspace
Into external file；4. output file periproct completes transformation.Following stream can be used in the process for being entirely converted into external file
Journey figure indicates.
Referring to Fig. 9, for external binary file, essence is one group and contains the structural body of data needed for platform
It is formed with other information.Therefore internal file format and the conversion of external binary file can carry out as follows: 1. group
Knit the data of internal file format；2. the data converted deposit will be needed to be used to be written in the structural body of external file；3. with two
All data is successively written in system writing mode into file.Following flow chart can be used in the process for being entirely converted into external file
It indicates.
The invention has the benefit that
First, it realizes simple, vector format document handling unit, includes dot file, line file and face file for sending
Vector format file produce request；Date Conversion Unit, for receive it is described produce request, by the vector format file
It is handled, and processing information is exported；External exchange format document handling unit, for receiving the output information,
And clear file or binary file are generated, express the information such as coordinate, attribute needed for vector format, parameter.It can answer
For carrying out data exchange between other systems platform, so that geologic survey GIS data can be used in other systems platform
The achievement of processing system.
Second, it is widely used, clear file is a kind of form of external swap file.Containing useful standard ascii character-set
The structure of the data and text file of the character of coding, file is made of a series of File header information comprising keywords.Externally
Ascii text file stores the file information, projection information, workspace information, spatial information, parameter information, attribute information.Binary system
File is also a kind of form of external swap file.Interior data is with 0,1 filling.External binary file is stored by several
The file information, projection information, workspace information, spatial information, parameter information, attribute information (sequence fixed) structural body and
Other data composition.Meet Mainstream Platform and can obtain, using and share this platform geological researching data needs.
Above description shows and describes several preferred embodiments of the present application, but as previously described, it should be understood that the application
Be not limited to forms disclosed herein, should not be regarded as an exclusion of other examples, and can be used for various other combinations,
Modification and environment, and the above teachings or related fields of technology or knowledge can be passed through in application contemplated scope described herein
It is modified.And changes and modifications made by those skilled in the art do not depart from spirit and scope, then it all should be in this Shen
It please be in the protection scope of appended claims.
Claims (10)
1. a kind of geologic survey GIS data processing system characterized by comprising
Vector format document handling unit, for sending turning for the vector format file including dot file, line file and face file
It requests out；
Date Conversion Unit, for receive it is described produce request, the vector format file is handled, and information will be handled
It is exported；
External exchange format document handling unit, for receiving the output information, and generates clear file.
2. a kind of geologic survey GIS data processing method characterized by comprising
Vector format document handling unit sends the producing for vector format file including dot file, line file and face file and asks
It asks；
Date Conversion Unit produces request described in receiving, and the vector format file is handled, and processing information is carried out
Output；
External exchange format document handling unit receives the output information, and generates clear file.
3. geologic survey GIS data processing method according to claim 2, which is characterized in that the method specifically includes:
Corresponding document reader is called according to the external swap file format of geological researching data, is read by the document reader
The file cephalomere of the external swap file；
Workspace is created, according to the geological researching data pair of foundation when work at present area type and current platform conversion export
Corresponding information is output to the file cephalomere by outer swap file format；
According to the projection information of presently described workspace, histoprojections supplemental characteristic is output to geologic survey according to specified structure
In the external swap file of data；
According to factor data in the workspace, its space, attribute and supplemental characteristic are sequentially output geological researching data pair
In outer swap file；
Output file periproct completes processing work.
4. a kind of geologic survey GIS data processing system characterized by comprising
Vector format document handling unit, for sending turning for the vector format file including dot file, line file and face file
It requests out；
Date Conversion Unit, for receive it is described produce request, the vector format file is handled, and information will be handled
It is exported；
External exchange format document handling unit, for receiving the output information, and generates binary file.
5. a kind of geologic survey GIS data processing method characterized by comprising
Vector format document handling unit sends the producing for vector format file including dot file, line file and face file and asks
It asks；
Date Conversion Unit produces request described in receiving, and the vector format file is handled, and processing information is carried out
Output；
External exchange format document handling unit receives the output information, and generates binary file.
6. geologic survey GIS data processing method according to claim 5, which is characterized in that the method specifically includes:
The data of organization internal file format；
The data converted deposit will be needed to be used to be written in the structural body of geological researching data file；
All data is successively written into file with binary system writing mode.
7. a kind of geologic survey GIS data processing method characterized by comprising
External exchange format document handling unit transmission clear file produces request；
Date Conversion Unit produces request described in receiving, and the clear file is handled, and processing information is exported；
Vector format document handling unit receives the output information, and generates the arrow including dot file, line file and face file
Measure formatted file.
8. geologic survey GIS data processing method according to claim 7, which is characterized in that the method specifically includes:
File header information is read, corresponding geological researching data document reader is called according to geological researching data FileVersion,
According to the type of export, corresponding workspace is initialized；
Projection information is read, projection operation is carried out to workspace；
Each element information is read, is loaded data into memory；
According to the factor data of memory, each element is added into workspace, carries out drafting operation.
9. a kind of geologic survey GIS data processing method characterized by comprising
What external exchange format document handling unit sent binary file produces request；
Date Conversion Unit produces request described in receiving, and the binary file is handled, and it is defeated to handle information progress
Out；
Vector format document handling unit receives the output information, and generates the arrow including dot file, line file and face file
Measure formatted file.
10. geologic survey GIS data processing method according to claim 9, which is characterized in that the method is specifically wrapped
It includes:
The file information is read, corresponding geological researching data document reader, root are called according to geological researching data FileVersion
According to the type of export, corresponding workspace is initialized；
Projection information is read, projection operation is carried out to workspace；
All types of workspace data are read, according to the length for the follow-up data to be read specified in data, are successively read specific bit
Several data, and load data into memory；
According to the factor data of memory, each element is added into workspace, carries out drafting operation.
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|---|---|---|---|---|
| CN110569612A (en) * | 2019-09-12 | 2019-12-13 | 四川省地质工程勘察院集团有限公司 | Three-dimensional geological model data conversion method based on Geo3DML |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150378450A1 (en) * | 2013-11-19 | 2015-12-31 | Wacom Co., Ltd. | Method and system for ink data generation, ink data rendering, ink data manipulation and ink data communication |
| CN105512235A (en) * | 2015-11-30 | 2016-04-20 | 中国地质大学（武汉） | GIS and AutoCAD data exchange method and intermediate file |
-
2018
- 2018-09-17 CN CN201811078585.3A patent/CN109271470A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150378450A1 (en) * | 2013-11-19 | 2015-12-31 | Wacom Co., Ltd. | Method and system for ink data generation, ink data rendering, ink data manipulation and ink data communication |
| CN105512235A (en) * | 2015-11-30 | 2016-04-20 | 中国地质大学（武汉） | GIS and AutoCAD data exchange method and intermediate file |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110569612A (en) * | 2019-09-12 | 2019-12-13 | 四川省地质工程勘察院集团有限公司 | Three-dimensional geological model data conversion method based on Geo3DML |
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Application publication date: 20190125 |