CN105320802B - A method of it is designed based on AutoCAD general graphical object implementatio8 auxiliary programmings - Google Patents
A method of it is designed based on AutoCAD general graphical object implementatio8 auxiliary programmings Download PDFInfo
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- CN105320802B CN105320802B CN201510297448.9A CN201510297448A CN105320802B CN 105320802 B CN105320802 B CN 105320802B CN 201510297448 A CN201510297448 A CN 201510297448A CN 105320802 B CN105320802 B CN 105320802B
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Abstract
The invention discloses a kind of methods based on the design of AutoCAD general graphical object implementatio8 auxiliary programmings, include the following steps：Step 1 establishes the graphical element of planning and designing and the correspondence of graphic entity.Step 2 establishes the graphic entity model of object in kind.Step 3, the graphic entity model established by ObjectARX second development interfaces, read step two are used for planning and designing.The present invention uses above-mentioned technical proposal, and relative to the various planning auxiliary design methods used in current planning and designing industry, more open and versatility saves the time, improves efficiency, ensured application, has broad application prospects in planning and designing industry.
Description
Technical field
The present invention relates to planning and designing fields, especially a kind of to be based on AutoCAD general graphical object implementatio8 auxiliary programmings
The method of design.
Technical background
Planning and designing are a complicated system engineerings, in addition to text is planned in writing, it is also necessary to draw a large amount of planning chart
Paper, Planning preparation is in the process there is also the adjustment of more rounds, update, and planning and designing teacher are by the Plot Work institute of a large amount of low levels
Constraint, and plan the appearance of Autocad, the both hands of planning and designing teacher have been liberated to a certain extent, work out efficiency
Promoted, the specification of achievement format, allow planning and designing teacher have more energy put into planning itself whether rationally, whether section
In thinking.
For a long time, planning and designing drawing draws the AutoCAD software platforms that platform is concentrated mainly on autodesk, inc.
On, the secondary development that all kinds of planning Autocads applied in planning and designing industry are also based on AutoCAD mostly is soft
Part.In numerous auxiliary softwares, a part of software is the simple integrated of some function tool sets, and application category very little can not
The overall process of complete support city planning design；Another part is soft by the planning Computer Aided Design of software company's research and development of profession
Part, more comprehensively to the support of planning and designing process, level of integrated system is also higher, but in order to promote drawing efficiency, is also simultaneously
For closer bundled user, " AutoCAD custom objects " technology is largely used in software, is developed using this technology
The Drawing Object that goes out of Software on Drawing, be not a kind of general AutoCAD object entities, need in corresponding computer client
Dedicated analysis program is installed, browsing, duplicate copy and other edit operations could be shown to Drawing Object.By
In setting too many technical threshold and barrier so that with the versatility of its planning and designing drawing drawn out, availability significantly
It reduces, can not be used on the computer for not installing corresponding resolver, the figure achievement that different software is drawn can not be general, draws
Good figure achievement GIS conversions are difficult, achievement is increased using difficulty.
Invention content
For overcome the deficiencies in the prior art, a kind of using AutoCAD platforms purpose of the present invention is to disclose, it adopts
To achieve the above object of the invention, the present invention adopts the following technical scheme that realization：
A kind of method based on the design of AutoCAD general graphical object implementatio8 auxiliary programmings, including following step
Suddenly：Step 1 establishes the graphical element of planning and designing and the correspondence of graphic entity；Step 2 establishes the figure of object in kind
Shape physical model, it would be desirable to which it is root entity, Suo Youqi that the object in kind that could be expressed with a block graphics entity, which establishes an entity,
His entity is all fructification, and fructification all points to root entity, and other fructifications can be found by root entity；Establish model pair
As processing logic during edit operation；The object provided by ObjectARX second development interfaces and AutoCAD is real
Body type specification graphic entity model simultaneously stores, corresponding indication information in the form of XData or XRecord with specific figure
Entity description model is associated and stores；Step 3, the figure established by ObjectARX second development interfaces, read step two
Shape physical model is used for planning and designing.
A kind of method based on the design of AutoCAD general graphical object implementatio8 auxiliary programmings above-mentioned, in graphic entity
Four kinds of point, line, surface, annotation citation forms correspond to block, lines, face filling, word and mark in graphical element respectively.
A kind of method based on the design of AutoCAD general graphical object implementatio8 auxiliary programmings above-mentioned, the model object
Processing logic during edit operation is to delete root entity, then deletes all fructifications, edits fructification, synchronized update
Root entity.
A kind of method based on the design of AutoCAD general graphical object implementatio8 auxiliary programmings above-mentioned, reads graphic entity
Information generates thematic map then.
A kind of method based on the design of AutoCAD general graphical object implementatio8 auxiliary programmings above-mentioned, reads graphic entity
Information carries out statistic of classification, generates statistical table.
The beneficial effects of the present invention are：The present invention is auxiliary relative to the various planning used in current planning and designing industry
Implemented method, more open and versatility.Technology auxiliary is provided to planning and designing overall process realizing, raising efficiency
Meanwhile ensureing the AutoCAD objects that the outcome data of production is common, the use for planning and designing achievement has been cleared away obstacle, has been kept away
Exempt from, using various technical barriers caused by AutoCAD custom objects, to reduce number caused by due to being fitted without client
According to can not show, can not convert, copy loss etc. work risk, save the time, improve efficiency, ensured application, advising
Design industry is drawn to have broad application prospects
Description of the drawings
Fig. 1 is flow chart；
Fig. 2 is that example is arranged in road rendering parameter；
Fig. 3 is road drawing result example；
Fig. 4 is that road is inserted into auxiliary facility symbol example；
Fig. 5 is that auxiliary facility symbol sets a property example；
Fig. 6 is land used boundary, attribute block and exemplary properties；
Fig. 7 is common plot processing example；
Fig. 8 is complicated plot example；
Fig. 9 is complicated plot processing example；
Figure 10 is road processing example.
Specific implementation mode
Technical scheme of the present invention is described in further detail with specific implementation mode below in conjunction with attached drawing：
It is as shown in Figure 1 the flow chart of the present invention.First, the graphical element of planning and designing and pair of graphic entity are established
It should be related to.The drawing element expression of planning and designing drawing is very abundant, relativity of information is also very big, have lines, word, mark,
The multiple types such as face filling, block symbol, four kinds of graphic entity point, line, surface, annotation citation forms indicate.Point corresponds to various
Facility block symbol；Line corresponds to various not closed lines, such as highway sideline, center line；Face corresponds to the plot side of land used
Boundary is expressed with closed line；Annotation correspond to drawing word, mark, also include various ornamenting picture frames on various information,
Index etc..Each graphical element in planning and designing drawing is not isolated individual, road axis, highway sideline, road name
Mark, have a lot of social connections mark etc. together could one road of expressed intact；The boundary in plot, the color lump of filling, plot indication information
Mark etc. together could one plot of expressed intact；Multiple auxiliary facility symbols belong to a certain specified facilities land；Planning
Planning unit boundary, the level inclusion relation for scheming then boundary and boundary of land block；The border relations etc. in the plot of complicated round island type.
Secondly, the graphic entity model of object in kind is established.For the material object for needing to be expressed with a block graphics entity
Object, such as road, planning plot, determine that an entity is root entity, every other entity is all in this block graphics entity
Fructification, fructification all points to root entity, and other fructifications can be found by root entity.Determine that model object is grasped in editor
Processing logic during work.Root entity is such as deleted, then deletes all fructifications；Edit fructification, synchronized update root entity
Deng.By ObjectARX second development interfaces, establishment, storage and the management of above-mentioned specific object model in kind are realized.Planning
Drawing Object in design drawing, the most basic object entity type that may be by AutoCAD offers are described, such as：
Line, lwpolyline, circle, attribute block, block, hatch, text, demension etc.；It is associated
Attribute information, the attribute of generic field by attribute, deposited by xdata, long text by xrecord by short text
Storage.Complex object (such as road, plot) all maintains the AutoCAD objects of most original, not another structure in physical store and expression
New physical object model is made, does not also generate group marshalling objects；Only by recording associated entity in xdata attributes
Handle is numbered, to realize marshalling of the complex object in logic level, and the reactor message mechanism provided by AutoCAD
To capture and handle editors' events such as complex object addition, deletion, modification.There is no specific information carrying for some and be associated with
The element of Automated generalization does not do specially treated, and the object model for still AutoCAD being used to provide is described, such as drawing text
Word mark etc..
Finally, by ObjectARX second development interfaces, the graphic entity model of above-mentioned foundation is read, is set for planning
Meter.The drafting of generic graphic object creates, and realizes that software provides two by the graphic drawing function that AutoCAD itself is provided
The Attribute Association interface of secondary exploitation, in conjunction with the data standard customized, the Drawing Object needs that automatic decision currently selects are filled in
Attribute field, the information that area, length, figure layer etc. are obtained automatically by Drawing Object, give tacit consent to Auto-writing.Complex object
The drafting of (such as road), editor, a set of function collection of research and development of software, using road axis as root object, by drawing in road
Heart line draws out highway sideline, curb line etc. automatically according to road template.Entire road is recorded in road axis
The information such as facility information, length, road name, while recording highway sideline, road at left and right sides of trend of road associated with it
The handle information of kerb line；Highway sideline, curb line only record the handle information of corresponding road axis.Together
When, software captures the case where road axis intersects in road drawing process automatically, carries out at automatic intersection chamfering
Reason, the Labeling Coordinate etc. of road axis intersection point.Complex object (such as plot) passes through a land used boundary line
(lwpolyline), attribute block (Attributeblock), a filling (hatch) are expressed.Wherein, attribute block is
Root object, only there are one attribute blocks to express in a plot, and all areas in the plot, land character, volume are recorded in attribute block
The land use index such as rate, ratio of green space, at the same record boundary line associated with it, filling handle information, on graph topology,
Ask attribute block that must be completely contained in the inside of land used boundary line；The boundary of land used is expressed, for common plot, only with one
The closed lwpolyline expression of root, complicated round island type plot are expressed with one group of closed lwpolyline, i.e., one most
The small boundary that the big boundary and several inside of outside hollow out, all boundary lines record the root object (attribute block) of its direction
Handle information；Filling is the hatch generated according to land used boundary line, and filling records the root object (attribute block) of its direction
The relating attribute (assosiation) of handle information, filling and land used boundary line is set as true, ensures boundary line adjustment
When, fill adjust automatically.Meanwhile software realizes that the whole of plot is deleted, filled automatically, quick association according to root object, with
And the operation readiness such as batch automatic numbering.Realize the extraction and displaying of graphical information.Corresponding function is researched and developed, is easily extracted
With the information of displaying each object record；Realize extraction drawing graphical element and its attribute information, it is special automatically according to template generation
Topic figure is then；It realizes and carries out statistic of classification according to drawing graphical element, and generate the statistical tables such as land use balance table.
It is illustrated in figure 2 the road rendering parameter setting example of the present invention.Before drawing road, the parameter of road is set,
The template of such as road, road name, grade information, when drawing road, it is only necessary to draw one line of road axis, software
Corresponding highway sideline, curb line etc. can be automatically generated according to road facility information.Fig. 3 show the road of the present invention
Drawing result example.It is automatic to carry out intersection processing when road is drawn.Corresponding road information, is recorded in road-center
In the xdata attributes of line.
It is illustrated in figure 4 the insertion auxiliary facility symbol example of the present invention.Auxiliary facility symbol is made, and passes through insertion
The form of block, is added in figure.The auxiliary facility symbol for being illustrated in figure 5 the present invention sets a property example.Each match and is arranged
Block symbol is applied, detailed attribute information is set and is described.
It is illustrated in figure 6 land used boundary, attribute block and the exemplary properties of the present invention.Draw the closure on land used boundary
Lwpolyline adds attribute block Attributeblock, adds the ATTRIBUTE INDEX in plot, realize the automatic filling in plot.
It is illustrated in figure 7 the common plot processing example of the present invention.Draw boundary of land block.Use the PL of AutoCAD itself
Order, which is drawn, is closed multi-section-line, or using the BO orders of AutoCAD, extracts the closure multi-section-line in the one group of line chosen.It is inserted into
Land used attribute block.The function of being provided with software is inserted into land used attribute block.Insertion position point, it is necessary in land used border inner.
Judge whether land used boundary is closed, not self intersection lwpolyline.If it is, automatically by land used boundary and land used
Attribute block is associated with, and the area on land used boundary is automatically added in the area index of land used attribute block；If it is not, then not into
Row auto-associating.Land used boundary is automatically switched to corresponding land character figure layer.According to land used attribute block, retrieves and closed with it
The land used boundary of connection, automatic hatch filling, the figure layers of hatch fillings automatically in its corresponding land character figure layer, color with
Layer.Wherein, land used attribute block is root entity, has recorded the land used boundary being associated in relatives of Taiwan compatriots living on the Mainland's property thereafter, hatch is filled
Handle information；Land used boundary, hatch fillings are fructifications, only have recorded root entity (land used attribute block) in relatives of Taiwan compatriots living on the Mainland's property thereafter
Handle information.
It is illustrated in figure 8 the complicated plot example of the present invention.Draw boundary of land block.Use the PL orders of AutoCAD itself
It draws and is closed multi-section-line, or using the BO orders of AutoCAD, extract the closure multi-section-line in the one group of line chosen.It is inserted into land used
Attribute block, auto-associating, the processing procedure filled automatically, and the processing in common plot are completely the same.It is illustrated in figure 9 this hair
Bright complicated plot processing example.By the plot inside rotary island, it is moved on one side, it can be seen that：Boundary B and boundary C-shape are complete
Full weight is folded, but boundary B and the plot boundary A combination description U12, boundary C individually describe the plot G11.Use rand in complicated plot
Boundary, the form for only allowing big land used border inner to be hollowed out by small land used boundary, do not allow two phases from land used boundary with simultaneously
The mode of collection forms complicated plot.One land used attribute block can be associated with multiple land used boundaries, but a land used boundary is only
One one land used attribute block of association.
It also needs to carry out editing and processing to land used information.Land used boundary is being carried out with land used attribute block when being associated with, if
Land used boundary or land used attribute block had carried out the association of land used attribute block, then deleted original incidence relation, re-established pass
Connection.Land used attribute block is the root entity of land used, when deleting land used attribute block, then according to the fructification of land used attribute block record
Handle information finds corresponding association boundary and hatch fillings, deletes together.For common plot, land used boundary is deleted,
Then hatch fillings associated with it are deleted together, but associated with it entity (land used attribute block) is not deleted, only by land used
In attribute block, the attribute information (such as land area) automatically extracted in all boundaries from land used empties.For complicated plot,
Whole lands used boundary is deleted, operation logic is consistent with common plot with reference to the 3rd article of description；It only deletes internal in land used boundary
Small boundary, then find root entity (land used attribute block), automatically update land used attribute attribute information (such as land area in the block
Deng), and update hatch fillings；Maximum boundary in land used boundary is such as deleted, then this land used is destroyed completely, operation logic ginseng
The 3rd article of description is examined, consistent with common plot but the remaining small boundary in inside and land used attribute block are not deleted, at this point, several phases
From small boundary and land used attribute block only record its incidence relation once, but the original due to having violated the 3rd article of complicated plot
Then, a land used plot cannot be correctly configured.Only change the node on land used boundary, then hatch fillings automatically update, root
Corresponding attribute automatically updates in entity land used attribute block.Change the land character attribute of root entity land used attribute block, then therewith
Associated usefully boundary, hatch fillings figure layer auto-changing.
It is as shown in Figure 10 the road processing example of the present invention.The composition of road adds using road axis as root entity
Highway sideline, the curb line of upper road axis both sides are combined into one section of complete road.Object A is root entity, record
The essential attributes such as title, the facility information of road, while recording the handle information of object C, D, E, F associated with it.Object
C, D, E, F only record the handle information of root entity, that is, object A as fructification.It is drawing using object B as road axis
Road when, software reactor automatically detects, and object B intersects with object A, carries out automatic intersection processing.Automatically intersecting
When mouth processing, after road axis intersection, 4 quadrants of formation, highway sideline, the curb line of the interior intersection of same quadrant,
Automatically according to the grade of road axis, the chamfer radius according to acquiescence carries out automatic chamfering processing.Automatic intersection processing
Afterwards, after originally affiliated partner C, D, E, F of direction object A is blocked by centre, newly-generated object is still directed toward root entity object
A；New object M, N that intersection chamfering generates can record the handle letters of object A, object B simultaneously because being related to two road
Breath.Upgating object A, object B simultaneously, the handle information of new object M, N is added to it.When changing road, road is such as adjusted
Template or deviate road axis nodes of locations, choose road axis entity object A, then with the associated all roads object A
Kerb line, kerb line are all repainted according to facility information again.It is related to the intersection of object A, locates again automatically
Reason.When deleting road, a certain road-center line object is deleted, then all highway sidelines, the curb line all one being associated
And delete, intersecting therewith intersection, it is automatic to be closed.
In addition to the implementation, the present invention can also have other embodiment.It is all to use equivalent substitution or equivalent transformation shape
At technical solution, fall within the scope of protection required by the present invention.
Claims (5)
1. a kind of method based on the design of AutoCAD general graphical object implementatio8 auxiliary programmings, it is characterised in that including following step
Suddenly：
Step 1 establishes the graphical element of planning and designing and the correspondence of graphic entity,
Step 2 establishes the graphic entity model of object in kind, it would be desirable to the object in kind that could be expressed with a block graphics entity
It is root entity to establish an entity, and every other entity is all fructification, and fructification all points to root entity, and can pass through root entity
Find other fructifications；Establish processing logic of model object during edit operation；It is connect by ObjectARX secondary development
Mouthful and the object entity type specification graphic entity models that provide of AutoCAD simultaneously store, corresponding indication information with XData or
The form of XRecord is associated with specific graphic entity descriptive model and stores；
Step 3, the graphic entity model established by ObjectARX second development interfaces, read step two are set for planning
Meter.
2. a kind of method based on the design of AutoCAD general graphical object implementatio8 auxiliary programmings according to claim 1,
Four kinds of point, line, surface, annotation citation forms being characterized in that in graphic entity correspond to block in graphical element, lines, face respectively
Filling, word and mark.
3. a kind of method based on the design of AutoCAD general graphical object implementatio8 auxiliary programmings according to claim 1,
It is characterized in that processing logic of model object during edit operation is to delete root entity, then deletes all fructifications,
Edit fructification, synchronized update root entity.
4. a kind of method based on the design of AutoCAD general graphical object implementatio8 auxiliary programmings according to claim 1,
It is characterized in that reading graphic entity information, generates thematic map then.
5. a kind of method based on the design of AutoCAD general graphical object implementatio8 auxiliary programmings according to claim 1,
It is characterized in that reading graphic entity information, carries out statistic of classification, generate statistical table.
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| CN110288134A (en) * | 2019-06-06 | 2019-09-27 | 国网湖北省电力有限公司孝感供电公司 | A kind of fast automatic statistical method of city classification land area |
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