CN111597598A - PDMS (polydimethylsiloxane) -based object point set directional offset method - Google Patents
PDMS (polydimethylsiloxane) -based object point set directional offset method Download PDFInfo
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- CN111597598A CN111597598A CN202010393481.2A CN202010393481A CN111597598A CN 111597598 A CN111597598 A CN 111597598A CN 202010393481 A CN202010393481 A CN 202010393481A CN 111597598 A CN111597598 A CN 111597598A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000004205 dimethyl polysiloxane Substances 0.000 title claims abstract description 6
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 title claims abstract description 6
- -1 polydimethylsiloxane Polymers 0.000 title description 2
- 230000008140 language development Effects 0.000 claims abstract description 4
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 claims abstract 4
- 235000013870 dimethyl polysiloxane Nutrition 0.000 claims abstract 3
- 238000004987 plasma desorption mass spectroscopy Methods 0.000 claims abstract 3
- 238000012986 modification Methods 0.000 abstract description 5
- 230000004048 modification Effects 0.000 abstract description 5
- 238000013461 design Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
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Abstract
The invention discloses a PDMS-based object point set directional offset method, which is realized based on PML language development, wherein two intersected straight lines are respectively offset by the same given value in the direction perpendicular to the respective straight line to obtain two new straight lines, new intersection points generated by the two new straight lines are sequentially collected into a new point set array, and the point set array is used as a data source for rapidly creating a corresponding model. According to the method, the new intersection point is obtained through automatic deviation, the new coordinate point array is established and is used as a data source for quick establishment of the corresponding model, and the accuracy of the new data source is greatly improved; the new point set data source can be used for creating a specific model, so that the workload of manual selection, calculation and modification is saved, and the modeling efficiency is improved.
Description
The technical field is as follows:
the invention relates to a method for directional offset of an object point set, in particular to a method for directional offset of the object point set based on PDMS.
Background art:
PDMS (plant Design Management system), a plant three-dimensional layout Design Management system, is a flagship product of CAD Centre, uk, and since the first commercial version of PDMS was released in 1977, PDMS became the first Design software system for large and complex plant Design projects. In the PDMS operating environment, there is no function of directional offset of the point set. For objects containing point sets (e.g., boards), it is often necessary to create other models related to the point set data (e.g., the creation of railings along the edges of the board offset a distance inward or outward). At present, the conventional method is to manually select points along the edge of a board in sequence to create a relevant model, and then modify parameters of the model. The method has large workload of manual point selection and tedious steps. For the model with a complex shape, the modification calculation amount of the parameters is larger, the working efficiency is low, and the error rate is high.
The invention content is as follows:
in order to solve the problems of large calculation modification amount, low working efficiency and high error rate caused by manual sequential point parameter selection, the invention aims to provide an efficient and accurate method for directional offset of a point set based on a PDMS object.
The purpose of the invention is implemented by the following technical scheme: a PDMS object point set directional offset method is realized based on PML language development, two intersected straight lines are respectively offset by the same given value towards the direction (inward or outward) vertical to the respective straight line to obtain two new straight lines, new intersection points generated by the two new straight lines are sequentially collected into a new point set array, and the point set array is used as a data source for rapidly establishing a corresponding model.
The PDMS object point set-based directional offset method comprises the following specific implementation methods:
(1) positioning an object hierarchy containing a point set to be shifted in a PDMS structure tree;
(2) sequentially extracting coordinate point array information of an existing point set under the object;
(3) sequentially connecting the Nth point and the (N-1) th point in the array into a straight line 1, and connecting the Nth point and the (N + 1) th point in the array into a straight line 2;
(4) the straight lines 1 and 2 are shifted by the same given value in a direction (inward or outward) perpendicular to the respective straight lines, resulting in straight lines 3 and 4;
(5) and adding the coordinate value corresponding to the intersection point N' of the straight line 3 and the straight line 4 into the new coordinate point array at the corresponding position to be used as a data source for quickly establishing the corresponding model.
The offset is given the same value as the preset value.
The invention has the advantages that: according to the method, the new intersection point is obtained through automatic deviation, the new coordinate point array is established and is used as a data source for quick establishment of the corresponding model, and the accuracy of the new data source is greatly improved; the new point set data source can be used for creating a specific model, so that the workload of manual selection, calculation and modification is saved, and the modeling efficiency is improved.
Description of the drawings:
fig. 1 is a flowchart of an implementation of a PDMS object point set-based directional offset method.
FIG. 2 is a diagram of an embodiment of a method for directionally offsetting a point set based on PDMS.
The specific implementation mode is as follows:
example 1: as shown in fig. 1 and 2, a PDMS object point set oriented migration method is implemented based on PML language development, in which two intersecting straight lines are respectively migrated by the same given value in a direction (inward or outward) perpendicular to the respective straight line to obtain two new straight lines, new intersection points generated by the two new straight lines are sequentially collected into a new point set array, and the point set array is used as a data source for rapid creation of a corresponding model. The specific implementation method comprises the following steps:
(1) positioning an object hierarchy containing a point set to be shifted in a PDMS structure tree;
(2) sequentially extracting coordinate point array information of an existing point set under the object;
(3) sequentially connecting the Nth point and the (N-1) th point in the array into a straight line 1, and connecting the Nth point and the (N + 1) th point in the array into a straight line 2;
(4) the straight lines 1 and 2 are shifted by the same given value in a direction (inward or outward) perpendicular to the respective straight lines, resulting in straight lines 3 and 4; the offset is given the same value as the preset value.
(5) And adding the coordinate value corresponding to the intersection point N' of the straight line 3 and the straight line 4 into the new coordinate point array at the corresponding position to be used as a data source for quickly establishing the corresponding model.
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.
Claims (3)
1. A PDMS object point set directional offset-based method is characterized in that based on PML language development, two intersected straight lines are respectively offset by the same given value towards the direction perpendicular to the straight lines to obtain two new straight lines, new intersection points generated by the two new straight lines are sequentially collected into a new point set array, and the point set array is used as a data source for rapid creation of a corresponding model.
2. The method of claim 1, wherein the method comprises:
(1) positioning an object hierarchy containing a point set to be shifted in a PDMS structure tree;
(2) sequentially extracting coordinate point array information of an existing point set under the object;
(3) sequentially connecting the Nth point and the (N-1) th point in the array into a straight line 1, and connecting the Nth point and the (N + 1) th point in the array into a straight line 2;
(4) the straight line 1 and the straight line 2 are deviated by the same given value along the direction vertical to the respective straight lines to obtain a straight line 3 and a straight line 4;
(5) and adding the coordinate value corresponding to the intersection point N' of the straight line 3 and the straight line 4 into the new coordinate point array at the corresponding position to be used as a data source for quickly establishing the corresponding model.
3. A method of PDMS object point set orientation shift according to claims 1 or 2, characterized by that, the shift is given the same value as the preset value.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010393481.2A CN111597598A (en) | 2020-05-11 | 2020-05-11 | PDMS (polydimethylsiloxane) -based object point set directional offset method |
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| CN202010393481.2A CN111597598A (en) | 2020-05-11 | 2020-05-11 | PDMS (polydimethylsiloxane) -based object point set directional offset method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103706414A (en) * | 2013-12-19 | 2014-04-09 | 重庆大学 | Device for axially precisely positioning and transferring multiple sections of capillary tubes |
| CN104484512A (en) * | 2014-12-01 | 2015-04-01 | 艾法能源工程股份有限公司 | Pattern generation method based on AUTOCAD in PDMS (plant design management system) |
| CN106777640A (en) * | 2016-12-08 | 2017-05-31 | 京能十堰热电有限公司 | A kind of method that Model array based on PDMS is replicated |
| DE102016213000A1 (en) * | 2016-07-15 | 2018-01-18 | Hahn-Schickard-Gesellschaft für angewandte Forschung e.V. | Handling of liquids using a fluidic module having a plane of fluidity inclined with respect to a plane of rotation |
| CN107690582A (en) * | 2015-04-03 | 2018-02-13 | 雅培制药有限公司 | Apparatus and method for sample analysis |
-
2020
- 2020-05-11 CN CN202010393481.2A patent/CN111597598A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103706414A (en) * | 2013-12-19 | 2014-04-09 | 重庆大学 | Device for axially precisely positioning and transferring multiple sections of capillary tubes |
| CN104484512A (en) * | 2014-12-01 | 2015-04-01 | 艾法能源工程股份有限公司 | Pattern generation method based on AUTOCAD in PDMS (plant design management system) |
| CN107690582A (en) * | 2015-04-03 | 2018-02-13 | 雅培制药有限公司 | Apparatus and method for sample analysis |
| DE102016213000A1 (en) * | 2016-07-15 | 2018-01-18 | Hahn-Schickard-Gesellschaft für angewandte Forschung e.V. | Handling of liquids using a fluidic module having a plane of fluidity inclined with respect to a plane of rotation |
| CN106777640A (en) * | 2016-12-08 | 2017-05-31 | 京能十堰热电有限公司 | A kind of method that Model array based on PDMS is replicated |
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Application publication date: 20200828 |