CN104573179A - Generating method for corrugated board based on AUTOCAD in PDMS (Plant Design Management System) - Google Patents

Abstract

The invention discloses a generating method for a corrugated board based on AUTOCAD in a PDMS (Plant Design Management System). The generating method comprises the following steps: (1) establishing a cross section outline of the corrugated board in the AUTOCAD and converting into a close line style; (2) acquiring coordinates of each break point of the outline; (3) outputting and storing the coordinate information of each break point in a structural panel format recognized by the PDMS; (4) calling for the stored file in the PDMS and importing the data of the corrugated board into the PDMS. The generating method is a method for quickly finishing PDMS structural corrugated board modeling based on AUTOLISP language development; after the outline of the corrugated board is drawn in the AUTOCAD, the coordinate information of each break point is extracted and stored in the panel format which is recognized by the PDMS and can be called by the PDMS; for the establishment of the plate in general complexity, the working efficiency can be increased by dozens of times by the program.

Description

Based on the generation method of the corrugated sheet of AUTOCAD in PDMS

Technical field

The present invention relates to engineering drawing technique field, particularly relate to a kind of generation method based on the corrugated sheet of AUTOCAD in PDMS.

Background technology

PDMS (Plant Design Management system) i.e. factory's three dimensional arrangement design management system, it is the flagship product of CADCentre company of Britain, since first PDMS business version in 1977 is issued, PDMS just becomes large-scale, the first-selected design software system of complex plant design item.At present comparatively widespread use be 12.0 versions.

Due to when PDMS carries out structural modeling, do not provide instrument for corrugated sheet modeling, have two kinds of method establishment at present: one is with plate splicing one by one; Waste time and energy like this, and complex operation, two is that corrugated sheet is considered as curved surface sheet material, sheet material is set up according to corrugated sheet cross section contour, this just needs to calculate the Distance geometry angle between every two adjacent coordinates points, work causes making inefficiency, and therefore setting up corrugated sheet model for PDMS is a difficult problem.

Summary of the invention

The object of the invention is the technological deficiency for existing in prior art, and a kind of generation method based on the corrugated sheet of AUTOCAD in PDMS is provided.

The technical scheme adopted for realizing object of the present invention is:

Based on a generation method for the corrugated sheet of AUTOCAD in PDMS, it is characterized in that, comprise the following steps,

1) in AUTOCAD, create the cross-sectional cross section contour of corrugated sheet, and be converted into closed line style;

2) coordinate information of each break of described outline line is obtained;

3) coordinate information of described each break is preserved with the discernible structural panel formatted output of PDMS;

4) in PDMS, above-mentioned preserved file is called, by the data importing of corrugated sheet in PDMS.

Described step 2) comprise following sub-step:

21) corrugated sheet appearance profile line is selected;

22) Extracting contour pel title,

23) pel title is converted into list array,

24) extract first break list of coordinates, and extract X and Y-direction coordinate, obtain first break coordinate;

25) element comprising the first break coordinate information in list array is intercepted, and by it stored in list of coordinates;

26) step 24 is repeated) and 25), form one group of circulation, until list array interior element is null value, obtain the list of coordinates having whole break coordinate information.

Described step 3) in, the character-serial NEW PAVERT POS E x1N y1U z1 of format command in the discernible structural panel form of described PDMS.

Compared with prior art, the invention has the beneficial effects as follows:

The present invention completes PDMS structure corrugated sheet modeling method fast based on AUTOLISP language development, draw corrugated sheet outline line in AUTOCAD after, the coordinate information of each break is extracted, and saves as a PDMS and can identify that sheet material form calls for PDMS.This program can be widely used in any project that drilling machine module, life building etc. use PDMS platform modeling.Under normal circumstances, for creating the plate of general complexity, this program can be increased work efficiency decades of times.Such as, the PDMS wall modeling work in certain life building, if with traditional approach about two months consuming time, then can complete at about two days by this program.

Embodiment

Below in conjunction with specific embodiment, the present invention is described in further detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.

Based on the generation method of the corrugated sheet of AUTOCAD in PDMS of the present invention, comprise the following steps,

1) in AUTOCAD, create the cross-sectional cross section contour of corrugated sheet, and be converted into closed line style;

2) coordinate information of each break of described outline line is obtained;

Wherein, the coordinate method obtaining whole break is as follows:

A, select corrugated sheet appearance profile line by LISP functions (setq E (car (entsel))), i.e. ready-made LWPOLYLINE line above, be defined as variable E;

B, by Lisp function (setq En0 (entget E)), Extracting contour pel title, is defined as variable En0;

C, by Lisp function Member, pel title is converted into list array, as (setq En1 (Member P En0)), the list array define of conversion is En1;

D, by Lisp function (setq P (cdr (assoc 10En1))) extract first break list of coordinates, be defined as variable P;

E, by Lisp function (setq pox (car P)), extract X-direction coordinate, (setq poy (cadr P)) extracts Y-direction coordinate, thus obtains the coordinate of first break;

F, by Lisp function (setq En2 (cdr (asssoc 10En1))), intercept the element comprising the coordinate information of break in list En1, and stored in list of coordinates En2;

G, (setq En1 (cdr En2)), intercept the coordinate information element below of first break in list En2, and be defined as list En1;

H, repetition steps d-g, form one group of circulation, until En1 list element is null value, obtain the list of coordinates En2 of the coordinate information comprising whole break like this.

3) coordinate information of described each break is preserved with the discernible structural panel formatted output of PDMS; Wherein, discernible sheet material form refers to the storage format of the sheet material defined in PDMS, after PDMS imports, directly can determine that it is sheet material.Corrugated sheet is not the definition in PDMS is construction material title, in P DMS, regard as sheet material.Definition sheet material format approach is:

NEW PANE, defines one block of plate

NEW PLOO, definition sheet material section profile line, for storing corrugated sheet break list of coordinates En2.

Height 2000, defines a panel height;

Wherein, in NEW PLOO, the file layout of each break coordinate is the character-serial of the format command of the discernible structural panel of PDMS, as:

NEW PAVERT

POS E x1N y1Uz1。

4) in PDMS, calling above-mentioned preserved file, by data importing in PDMS, is the transverse section of a corrugated sheet after importing, the same with the sheet material set up in PDMS, definition height can be passed through, as Height2000, reach the effect of stretching 2m, form real entity sheet material.

Set up in corrugated sheet process at PDMS, the most time-consuming is exactly calculate corrugation flanging length and vectorial angle, input flanging length and the knuckle direction of each corrugation of corrugated sheet successively, efficiency comparison is low, often one piece of corrugated sheet needs tens even up to a hundred breaks, visible, in PDMS, set up corrugated sheet model wastes time and energy very much.Then be easy to draw the cross section contour of corrugated sheet in AUTOCAD, copy, move, offset, rotate, revise also very simple.Therefore, create corrugated sheet in PDMS by AUTOCAD and well can improve its work efficiency.

The AUTOCAD of utilization of the present invention carries out the method for data layout conversion to the object in PDMS, by obtaining the starting point coordinate of each straight line in AutoCAD, directly determine each break coordinate, realize the quick generation of corrugated sheet model in PDMS, increase work efficiency.

The method of establishment PDMS structure corrugated sheet model of the present invention, realize based on AUTOLISP language development, corrugated sheet crosscut appearance profile line is drawn by AUTOCAD, and each break coordinate information of corrugated sheet outline line is called for PDMS with the discernible sheet material formatted output of PDMS, the method realizes simple, substantially increases in PDMS the efficiency creating corrugated sheet.

The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (3)

1. in PDMS based on a generation method for the corrugated sheet of AUTOCAD, it is characterized in that, comprise the following steps,

1) in AUTOCAD, create the cross-sectional cross section contour of corrugated sheet, and be converted into closed line style;

2) coordinate information of each break of described outline line is obtained;

3) coordinate information of described each break is preserved with the discernible structural panel formatted output of PDMS;

4) in PDMS, above-mentioned preserved file is called, by the data importing of corrugated sheet in PDMS.

2. generate method as claimed in claim 1, it is characterized in that, described step 2) comprise following sub-step:

21) corrugated sheet appearance profile line is selected;

22) Extracting contour pel title,

23) pel title is converted into list array,

24) extract first break list of coordinates, and extract X and Y-direction coordinate, obtain first break coordinate;

25) element comprising the first break coordinate information in list array is intercepted, and by it stored in list of coordinates;

26) step 24 is repeated) and 25), form one group of circulation, until list array interior element is null value, obtain the list of coordinates having whole break coordinate information.

3. generate method as claimed in claim 1, it is characterized in that, described step 3) in, the character-serial NEW PAVERT POS Ex1N y1U z1 of format command in the discernible structural panel form of described PDMS.