CN111424973A - Mold matching method for stairs - Google Patents
Mold matching method for stairs Download PDFInfo
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- CN111424973A CN111424973A CN201910019306.4A CN201910019306A CN111424973A CN 111424973 A CN111424973 A CN 111424973A CN 201910019306 A CN201910019306 A CN 201910019306A CN 111424973 A CN111424973 A CN 111424973A
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- dimensional
- stairs
- stair
- information
- matching
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/06—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for stairs, steps, cornices, balconies, or other parts corbelled out of the wall
- E04G13/062—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for stairs, steps, cornices, balconies, or other parts corbelled out of the wall for stairs or steps
Abstract
The invention discloses a stair mold matching method, relates to the field of mold matching, and aims to solve the problems that parameters need to be modified manually, the automation degree is low and the accuracy is low in the conventional stair mold matching mode. The method comprises the following specific steps: abstracting parameters of a two-dimensional stair into an information segment set, automatically calculating three-dimensional information of the stair by using an algorithm and identifying the three-dimensional information into a three-dimensional model; projecting the line segments in the three-dimensional model to a horizontal plane to obtain two-dimensional line segments; and step three, calculating three-dimensional information, matching a template, distinguishing the dog teeth and the side plates according to the two-dimensional line segments, solving contour lines of the dog teeth and the side plates, obtaining the three-dimensional information of the dog teeth and the side plates, and matching the template. According to the invention, the parameters of the two-dimensional stair of the stair are made into the three-dimensional model, then the model is matched according to the contour line, and the dog teeth and the side plates are distinguished by the two-dimensional line segment, so that the model can be automatically matched without manually modifying the parameters and depending on professionals, and the invention has high automation degree and good accuracy.
Description
Technical Field
The invention relates to the field of mold matching, in particular to a mold matching method for a stair.
Background
The building industry is an industry which is developed around the design, construction, decoration and management of buildings, the urban building is an important component of the building industry, the urban building carries culture in a unique mode, the lasting charm is diffused, the urban building continuously permeates into the daily life of people, and a harmonious and peaceful mental home is created for people.
The stair is a common structure in the building industry, and the stair is a member used for vertical traffic between floors in a building and is used for traffic connection between floors and when the height difference is large. Stair aluminum mould board mainly comprises platform template, stair section bottom form board, the template of marking time, dog tooth, anti-triangle template, support etc. stair generally divide into scissor type stair and roll over away formula stair, because the stair structure is comparatively complicated, the condition is changeable, so most be special-shaped template when joining in marriage the mould, very easily make mistakes, need carry out artificial modification to parameters such as dog tooth closed angle outer width in the stair, dog tooth thickness, the template of marking time width of flare-outing, stair C groove width, excessively rely on the professional at whole mould joining in marriage in-process, degree of automation is not high.
Disclosure of Invention
The invention aims to provide a mold matching method for a stair, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a mold matching method for a stair comprises the following specific steps:
abstracting parameters of a two-dimensional stair into an information segment set, automatically calculating three-dimensional information of the stair by using an algorithm for the information segment set, and identifying the three-dimensional information into a three-dimensional model;
projecting the line segments in the three-dimensional model to a horizontal plane to obtain two-dimensional line segments;
and step three, calculating three-dimensional information according to the contour line of the side sectional diagram in the three-dimensional model, then matching a template, distinguishing the dog teeth and the side plates according to the two-dimensional line segments, solving the contour lines of the dog teeth and the side plates, obtaining the three-dimensional information of the dog teeth and the side plates, and matching the model.
As a further scheme of the invention: the parameters of the two-dimensional stair in the first step comprise a side sectional view of the stair, the starting edge of the stair and the ascending direction of the stair.
As a further scheme of the invention: the three-dimensional information of the stairs in the first step comprises elevation information and section width information of the stairs.
As a further scheme of the invention: the elevation information of the stairs comprises the length, width and height of the stairs.
As a further scheme of the invention: and step two, the line segments in the three-dimensional model comprise the intersection line segment of the stairs and the nearby beam structure and the intersection line segment of the stairs and the nearby wall.
As a further scheme of the invention: the template in the third step comprises a platform template, a stair section bottom template, a step template, an inverse triangular template and a supporting template.
As a further scheme of the invention: and in the third step, the templates are all made of aluminum alloy materials.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the parameters of the two-dimensional stair of the stair are made into the three-dimensional model, then the model is matched according to the contour line, and the dog teeth and the side plates are distinguished by the two-dimensional line segment projected on the horizontal plane, so that the model can be automatically matched without manually modifying the parameters and depending on professionals, the degree of automation is high, the accuracy is good, and the method has a wide application prospect.
Drawings
Fig. 1 is a flow chart of a stair matching method.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Example 1
A mold matching method for a stair comprises the following specific steps:
step one, abstracting a side cutting diagram of a stair in a two-dimensional stair, a starting edge of the stair and a stair rising direction into an information section set, automatically calculating three-dimensional information of the stair by using a Boolean algorithm and identifying the three-dimensional information into a three-dimensional model, wherein the three-dimensional information of the stair comprises elevation information and section width information of the stair, and the elevation information of the stair comprises the length, the width and the height of the stair;
projecting the line segments in the three-dimensional model to a horizontal plane to obtain two-dimensional line segments;
and step three, when the stair is matched, three-dimensional information is calculated according to the contour lines of the side sectional drawing in the three-dimensional model, then a template is matched, dog teeth and the side plates are distinguished according to the two-dimensional line segments, the contour lines of the dog teeth and the side plates are obtained, the three-dimensional information of the dog teeth and the side plates is obtained, and the stair can be matched, so that the degree of automation is high, and a professional person is not required.
Example 2
A mold matching method for a stair comprises the following specific steps:
abstracting parameters of a two-dimensional stair into an information section set, wherein the parameters of the two-dimensional stair comprise a side sectional view of the stair, a starting edge of the stair and a stair ascending direction, and automatically calculating elevation information and section width information of the stair by the information section set through an algorithm and identifying the information into a three-dimensional model;
projecting the intersection line segment of the stair and the adjacent beam structure and the intersection line segment of the stair and the adjacent wall in the three-dimensional model to a horizontal plane to obtain a two-dimensional line segment;
and step three, calculating three-dimensional information according to the contour line of the side sectional view in the three-dimensional model, then matching a platform template, a stair step section bottom template, a step template, an inverse triangle template and a support template, wherein the templates are all made of aluminum alloy materials, distinguishing dog teeth and side plates according to two-dimensional line segments, and solving the contour lines of the dog teeth and the side plates to obtain the three-dimensional information of the dog teeth and the side plates, so that the automatic matching of the whole stair can be realized, and the accuracy is high.
Example 3
A mold matching method for a stair comprises the following specific steps:
step one, a side cutting diagram of a stair in a two-dimensional stair, a starting edge of the stair and a stair rising direction are used as an information segment set, and the information segment set is used for automatically calculating three-dimensional information of the stair by using an algorithm and identifying the three-dimensional information into a three-dimensional model;
projecting the line segments in the three-dimensional model to a horizontal plane, wherein the line segments in the three-dimensional model comprise the intersection line segments of the stairs and the nearby beam structure and the intersection line segments of the stairs and the nearby wall to obtain two-dimensional line segments;
and step three, calculating three-dimensional information according to the contour line of a side sectional view in the three-dimensional model, then matching a platform template, a stair step section bottom template, a step template, an inverse triangle template and a support template, distinguishing dog teeth and side plates according to two-dimensional line segments and obtaining the contour lines of the dog teeth and the side plates to obtain the three-dimensional information of the dog teeth and the side plates, and matching the model without manually modifying parameters such as the external width of a sharp corner of the dog teeth, the thickness of the dog teeth, the straightening width of the step side plates, the width of a C groove of the stair and the like.
According to the invention, the parameters of the two-dimensional stair of the stair are made into the three-dimensional model, then the model is matched according to the contour line, and the dog teeth and the side plates are distinguished by utilizing the two-dimensional line segment projected on the horizontal plane, so that the model can be automatically matched without manually modifying the parameters, and the invention has the advantages of high automation degree and good accuracy.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. A mold matching method for a stair is characterized by comprising the following specific steps:
abstracting parameters of a two-dimensional stair into an information segment set, automatically calculating three-dimensional information of the stair by using an algorithm for the information segment set, and identifying the three-dimensional information into a three-dimensional model;
projecting the line segments in the three-dimensional model to a horizontal plane to obtain two-dimensional line segments;
and step three, calculating three-dimensional information according to the contour line of the side sectional diagram in the three-dimensional model, then matching a template, distinguishing the dog teeth and the side plates according to the two-dimensional line segments, solving the contour lines of the dog teeth and the side plates, obtaining the three-dimensional information of the dog teeth and the side plates, and matching the model.
2. The method for matching stairs of claim 1, wherein the parameters of the two-dimensional stairs in the first step comprise a side sectional view of the stairs, a starting edge of the stairs and a rising direction of the stairs.
3. The method for matching stairs of claim 1, wherein the three-dimensional information of the stairs in the first step comprises elevation information and section width information of the stairs.
4. The method for matching stairs of claim 3, wherein the elevation information of the stairs comprises the length, width and height of the stairs.
5. A method for matching stairs according to claim 1 or 2, wherein the line segments in the three-dimensional model in the second step comprise the intersection line segment of the stairs and the nearby beam structure and the intersection line segment of the stairs and the nearby wall.
6. The method of matching forms of a staircase according to claim 1, wherein the formwork in step three includes a platform formwork, a staircase bottom formwork, a tread formwork, an inverted triangle formwork and a support formwork.
7. The method for matching the mold for the staircase according to the claim 1 or 6, wherein the mold plates in the third step are all made of aluminum alloy materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910019306.4A CN111424973A (en) | 2019-01-09 | 2019-01-09 | Mold matching method for stairs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910019306.4A CN111424973A (en) | 2019-01-09 | 2019-01-09 | Mold matching method for stairs |
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| Publication Number | Publication Date |
|---|---|
| CN111424973A true CN111424973A (en) | 2020-07-17 |
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| CN201910019306.4A Withdrawn CN111424973A (en) | 2019-01-09 | 2019-01-09 | Mold matching method for stairs |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113051654A (en) * | 2021-06-02 | 2021-06-29 | 苏州工业园区测绘地理信息有限公司 | Indoor stair three-dimensional geographic entity model construction method based on two-dimensional GIS data |
-
2019
- 2019-01-09 CN CN201910019306.4A patent/CN111424973A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113051654A (en) * | 2021-06-02 | 2021-06-29 | 苏州工业园区测绘地理信息有限公司 | Indoor stair three-dimensional geographic entity model construction method based on two-dimensional GIS data |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200717 |
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| WW01 | Invention patent application withdrawn after publication |