CN103020344B - Method for designing shoe trees based on geometrical characteristics of feet or shoe trees - Google Patents
Method for designing shoe trees based on geometrical characteristics of feet or shoe trees Download PDFInfo
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- CN103020344B CN103020344B CN201210515007.8A CN201210515007A CN103020344B CN 103020344 B CN103020344 B CN 103020344B CN 201210515007 A CN201210515007 A CN 201210515007A CN 103020344 B CN103020344 B CN 103020344B
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Abstract
The invention discloses a method for designing shoe trees based on geometrical characteristics of feet or the shoe trees. The method is characterized by comprising the following steps of: establishing the data structure of a shoe tree characteristic model to reflect the characteristics of the shoe trees and relationships between the characteristics of the shoe trees, and summarizing shoe tree design standards, population foot shape rules and the shoe tree characteristics of shoe trees of various conventional styles in a shoe tree characteristic database as a numerical value space of the shoe tree characteristic model; extracting shoe tree characteristics of newly added shoe tree data models, and storing the extracted shoe tree characteristics into the shoe tree characteristic database; creating a strategy for driving the re-establishment of a standard tree shoe data model by using the tree shoe characteristic models; and designing the tree shoe characteristic models to obtain shoe tree data models meeting design requirements. The shoe tree data models in various forms can be redesigned, and new shoe tree data models can be created by utilizing the diversity and the rationality of values of the shoe tree characteristic models and driving performance for the re-establishment of the shoe tree data models. An accurate, simple, convenient and highly-applicable shoe tree customization and design method is provided for shoe tree making and shoemaking enterprises.
Description
Technical field
The present invention relates to a kind of shoe last designing method, is more particularly the shoe last designing method based on foot or shoe tree geometric properties, is applied to shoemaking, shoe last or hat block industry processed; Also can be applicable to the Design and manufacture of special population medical check footwear, functional shoe.
Background technology
Shoe tree is the model of shoemaking, and the structure of shoe tree and moulding determine shape and the snugness of fit of shoes.Along with socioeconomic development, people more pay close attention to the comfortableness of footwear, fashion; There has been higher requirement in enterprise to autonomous Design, automated production.The necessity of shoe tree Design of digital has obtained industry accreditation, but current shoe tree digitalized design method does not take into full account China's shoe last designing standard and crowd's foot type rule, and lack the function of existing shoe tree data model being carried out to various forms bamboo product towards different demand.
Summary of the invention
The present invention is the weak point for avoiding existing for above-mentioned prior art, a kind of shoe last designing method based on foot or shoe tree geometric properties is provided, the inventive method can be utilized to carry out various forms of bamboo product to existing shoe tree data model, and new shoe tree data model can be created into, obtain the shoe tree data model meeting different demand.
The present invention is that technical solution problem adopts following technical scheme:
The feature that the present invention is based on the shoe last designing method of foot or shoe tree geometric properties is carried out as follows:
Step one, the data structure setting up shoe tree characteristic model and shoe tree property data base
Definition shoe tree feature comprises: style, shoe last or hat block type, shoe last or hat block is long, shoe last or hat block is wide, lift up before axis, shoe last or hat block return pulley profile, shoe tree three contour, shoe tree at the bottom of shoe last or hat block with shoe tree after lift up; Set up according to shoe last designing standard and reflect that the data model of logical relation between shoe tree feature is the data structure of shoe tree characteristic model; According to the data structure of shoe tree characteristic model, the shoe tree feature concluding shoe last designing standard, crowd's foot type rule and existing various style shoe tree enters the numerical space of shoe tree property data base as shoe tree characteristic model; Described shoe tree three contour is that instep encloses, the sole of the foot encloses and encloses with pocket;
Step 2, extract the shoe tree data model of newly-increased various style shoe tree feature and stored in shoe tree property data base
A, carry out sparse to the three dimensional point cloud of shoe tree data model in rectangular coordinate system OXYZ of newly-increased various style respectively, make the distance between adjacent curved surface coordinate points be not less than 1 millimeter; The position of described shoe tree data model in rectangular coordinate system and orientation are adjusted, axial plane in shoe tree is overlapped with YOZ face, and make described shoe tree data model directly can express part shoe tree feature in shoe last designing standard in rectangular coordinate system, lift up before described part shoe tree feature comprises shoe tree, lift up after shoe tree with shoe last or hat block at the bottom of axis; Define the adjusted position of described shoe tree data model in rectangular coordinate system and be set to normal place, the shoe tree data model defined under described normal place is standard shoe tree data model;
B, the shoe tree feature extracted in described standard shoe tree data model, comprising:
Acquisition shoe last or hat block is long and shoe last or hat block is wide to utilize the coordinate of standard shoe tree data model in rectangular coordinate system to calculate;
The curve that in extraction standard shoe tree data model, axial plane is crossing with shoe last or hat block bottom surface is axis at the bottom of shoe last or hat block;
The curve extracting standard shoe tree data model three contour place plane crossing with shoe tree data model is respectively shoe tree three contour;
By two radius-of-curvature smallest point in each cross-section curve in criterion shoe tree data model, and obtain shoe last or hat block return pulley profile through fairing;
Lift up before obtaining shoe tree according to the normal place of standard shoe tree data model in rectangular coordinate system and orientation with shoe tree after lift up;
C, in shoe tree property data base, add the shoe tree feature of described newly-increased standard shoe tree data model;
Step 3, set up the strategy that shoe tree characteristic model drives standard shoe tree data model to rebuild:
To each shoe tree feature, set up algorithm respectively to realize with the surface coordinates point redistribution on its variable quantity driving standard shoe tree data model, determine the scope of the surface coordinates point that will redistribute and the change strategy of surface coordinates point coordinate value; By debugging algorithm and corresponding program, the numerical value change of each shoe tree feature can be reflected in standard shoe tree numerical model and standard shoe tree numerical model after being out of shape still keeps smooth and fairing, maintenance primary standard shoe tree numerical model style characteristics;
Step 4, be met the shoe tree data model of design requirement by design shoe tree characteristic model:
A, select shoe tree style and shoe tree characteristic parameter according to shoe tree property data base or individual demand, design shoe tree characteristic model;
The standard shoe tree data model of shoe tree characteristic model to selected shoe tree style that b, utilization are set up carries out characteristic parameter and drives reconstruction, realize the surface coordinates point redistribution of the standard shoe tree data model of selected shoe tree style, obtain every shoe tree characteristic parameter and meet design requirement, keep the shoe tree data model of style feature simultaneously.
The feature that the present invention is based on the shoe last designing method of foot or shoe tree geometric properties is also: after completing steps four, carries out the plantar pressure comfortableness design of the parametric modifying of curved surface at the bottom of the shoe last or hat block based on the shoe tree data model of plantar pressure momentum distribution as follows:
Being separated shoe tree data model according to shoe last or hat block return pulley profile is curved surface at the bottom of shoe last or hat block and curved surface of last curved surface, and curved surface at the bottom of described shoe last or hat block is single-valued surface on XOZ face, characterizes the concavo-convex of curved surface at the bottom of shoe last or hat block with y coordinate figure; Interpolation fitting and the distribution of the plantar pressure momentum in the walking step state cycle of fairing obtain pressure pulse distribution surface, and described pressure pulse distribution surface is single-valued surface on XOZ face, with y coordinate figure characterization pressure momentum distribution values; The projection one_to_one corresponding of coordinate points on XOZ face of curved surface at the bottom of described pressure pulse distribution surface and described shoe last or hat block, described pressure pulse distribution surface is consistent with the projection of outline on XOZ face of curved surface at the bottom of described shoe last or hat block; Be added with the y coordinate figure of the coordinate points of curved surface at the bottom of corresponding shoe last or hat block after the pressure pulse distribution values characterized with y coordinate figure is multiplied by conversion coefficient k, realization to the amendment of curved surface at the bottom of described shoe last or hat block, obtains curved surface at the bottom of amended shoe last or hat block according to described plantar pressure momentum distribution surface; Curved surface and curved surface of last curved surface at the bottom of described amended shoe last or hat block are merged, and obtains the shoe tree data model of plantar pressure comfortableness design through fairing processing; Described conversion coefficient k verifies by experiment and determines.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, the present invention is shoe last or hat block processed, shoes manufacturing enterprise provides a kind of accurate, easy, shoe tree that applicability is strong customization and method for designing, and the shoe tree data model being conducive to making to design meets national shoe tree standard, meets the foot type rule of specific crowd or individual foot type feature; By the reconstruction of shoe tree character-driven shoe tree data model, not only can realize putting the level of existing shoe tree, the shoe tree data model more creating new.
2, the present invention is by further based on the parametric modifying of curved surface at the bottom of the shoe last or hat block of the shoe tree data model of plantar pressure momentum distribution, can obtain the shoe tree data model that plantar pressure of can releiving is concentrated.
3, the inventive method will promote the universal of shoe tree Design of digital and manufacture, improves production efficiency and the market competitiveness of enterprise.
Accompanying drawing explanation
Fig. 1 is the inventive method schematic flow sheet;
Fig. 2 is the plantar pressure comfortableness design flow diagram of the parametric modifying of curved surface at the bottom of the shoe last or hat block of the shoe tree data model that the inventive method distributes based on plantar pressure momentum.
Embodiment
See Fig. 1, Fig. 2, the present embodiment is carry out as follows based on foot or shoe tree geometric properties shoe last designing method:
Step one, the data structure setting up shoe tree characteristic model and shoe tree property data base
Definition shoe tree feature comprises: style, shoe last or hat block type, shoe last or hat block is long, shoe last or hat block is wide, lift up before axis, shoe last or hat block return pulley profile, shoe tree three contour, shoe tree at the bottom of shoe last or hat block with shoe tree after lift up; Set up according to shoe last designing standard and reflect that the data model of logical relation between shoe tree feature is the data structure of shoe tree characteristic model; According to the data structure of shoe tree characteristic model, the shoe tree feature concluding shoe last designing standard, crowd's foot type rule and existing various style shoe tree enters the numerical space of shoe tree property data base as shoe tree characteristic model; Shoe tree three contour is that instep encloses, the sole of the foot encloses and encloses with pocket;
Shoe tree characteristic model comprises external appearance characteristic and geometric properties." style " is external appearance characteristic, has renewal every year.Other shoe tree feature is geometric properties, reflects geometrical construction and the size of shoe tree.The numerical space of these geometric properties and between association be summarized in shoe last designing standard and crowd's foot type rule, realize with data, data correlation in shoe tree property data base.Shoe tree property data base is that the shoe tree characteristic model setting up certain style being applicable to a certain crowd is provided convenience and efficiency, for the shoe tree characteristic model setting up special population or individual demand provides necessary reference, its function can be realized efficiently by developing application.
Shoe tree " level is put " is that the shoe tree size of certain style is by the regular Scalable of a certain sizing sequence of shoe tree.The use of shoe tree characteristic model can allow more shoe tree versions and be not limited only to level and put, and is conducive to going out to meet the shoe last model of how different demand according to existing shoe tree Data Model Designing and can creating into new shoe last model.
Step 2, extract the shoe tree data model of newly-increased various style shoe tree feature and stored in shoe tree property data base
Shoe tree data model is made up of a large amount of shoe tree surface three dimension surface coordinates point, reflects style characteristics and the geometric properties of true shoe tree, can be directly used in the digital control processing of shoe tree.The numerical value of the geometric properties of existing shoe tree data model can not intuitive judgment and design, needs to extract, stored in shoe tree property data base, for shoe last designing provides data.
A, carry out sparse to the three dimensional point cloud of shoe tree data model in rectangular coordinate system OXYZ of newly-increased various style respectively, make the distance between adjacent curved surface coordinate points be not less than 1 millimeter; The proper density of surface coordinates point is conducive to the driving relationship redistributed surface coordinates point the variable quantity that the fairness of shoe tree data model controlled, was conducive to setting up shoe tree feature; The position of shoe tree data model in rectangular coordinate system and orientation are adjusted, makes the position of existing shoe tree data model in rectangular coordinate system and bearing calibration, be convenient to the shoe tree feature obtaining defining in shoe tree characteristic model; Axial plane in shoe tree is overlapped with YOZ face, and makes shoe tree data model directly can express part shoe tree feature in shoe last designing standard in rectangular coordinate system, lift up before part shoe tree feature comprises shoe tree, lift up after shoe tree with shoe last or hat block at the bottom of axis; The adjusted position of definition shoe tree data model in rectangular coordinate system is set to normal place, and the shoe tree data model under definition normal place is standard shoe tree data model;
B, the shoe tree feature extracted in standard shoe tree data model, comprising:
Acquisition shoe last or hat block is long and shoe last or hat block is wide to utilize the coordinate of standard shoe tree data model in rectangular coordinate system to calculate;
The curve that in extraction standard shoe tree data model, axial plane is crossing with shoe last or hat block bottom surface is axis at the bottom of shoe last or hat block;
The curve extracting standard shoe tree data model three contour place plane crossing with shoe tree data model is respectively shoe tree three contour;
By two radius-of-curvature smallest point in each cross-section curve in criterion shoe tree data model, and obtain shoe last or hat block return pulley profile through fairing;
Lift up before obtaining shoe tree according to the normal place of standard shoe tree data model in rectangular coordinate system and orientation with shoe tree after lift up;
C, in shoe tree property data base, add the shoe tree feature of newly-increased standard shoe tree data model, shoe tree property data base content of enriching constantly accordingly, the numerical space of shoe tree feature of expanding;
Step 3, set up the strategy that shoe tree characteristic model drives standard shoe tree data model to rebuild, realize according to shoe tree data model corresponding to shoe tree characteristic model automatic Reconstruction, obtain new shoe tree data model:
The Geometrical change of the shoe tree data model that each shoe tree feature causes likely causes that shoe tree data model is smooth, fairing reduces or causes the change that shoe tree outward appearance is larger, for this reason, to each shoe tree feature, set up algorithm respectively to realize and drive the surface coordinates point on standard shoe tree data model to redistribute with its variable quantity, determine the scope of the surface coordinates point that will redistribute and the change strategy of surface coordinates point coordinate value; By debugging algorithm and corresponding program, the numerical value change of each shoe tree feature can be reflected in standard shoe tree numerical model and standard shoe tree numerical model after being out of shape still keeps smooth and fairing, maintenance primary standard shoe tree numerical model style characteristics;
Step 4, be met the shoe tree data model of design requirement by design shoe tree characteristic model:
A, select shoe tree style and shoe tree characteristic parameter according to shoe tree property data base or individual demand, design shoe tree characteristic model; Standard shoe tree database provides numerical space for designing shoe tree characteristic model, and individual specific demand realizes by the numerical value of the shoe tree feature in change shoe tree characteristic model.
The standard shoe tree data model of shoe tree characteristic model to selected shoe tree style that b, utilization are set up carries out characteristic parameter and drives reconstruction, realize the surface coordinates point redistribution of the standard shoe tree data model of selected shoe tree style, obtain every shoe tree characteristic parameter and meet design requirement, keep the shoe tree data model of style feature simultaneously.
Use the shoe last designing method based on foot or shoe tree geometric properties, utilize ambiguity and the diversity of shoe tree characteristic model, realize the dirigibility of shoe last designing.The strategy utilizing the shoe tree characteristic model based on the shoe last designing method of foot or shoe tree geometric properties to drive standard shoe tree data model to rebuild, the reconstruction based on geometric properties can be carried out to selected shoe tree data model, shoe tree changing features can be reflected on selected shoe tree data model, can not only realize " level is put " of shoe tree data model, lift up before can also realizing shoe last or hat block type, shoe tree with shoe tree after the change of lifting up, more can realize the change of personalized any shoe tree feature, and new shoe tree can be created into.
In the present embodiment after completing steps four, further can carry out the plantar pressure comfortableness design of the parametric modifying of curved surface at the bottom of the shoe last or hat block based on the shoe tree data model of plantar pressure momentum distribution as follows:
Being separated shoe tree data model according to shoe last or hat block return pulley profile is curved surface at the bottom of shoe last or hat block and curved surface of last curved surface, and curved surface at the bottom of shoe last or hat block is single-valued surface on XOZ face, characterizes the concavo-convex of curved surface at the bottom of shoe last or hat block with y coordinate figure; Interpolation fitting and the distribution of the plantar pressure momentum in the walking step state cycle of fairing obtain pressure pulse distribution surface, and pressure pulse distribution surface is single-valued surface on XOZ face, with y coordinate figure characterization pressure momentum distribution values; The projection one_to_one corresponding of coordinate points on XOZ face of curved surface at the bottom of pressure pulse distribution surface and shoe last or hat block, pressure pulse distribution surface is consistent with the projection of outline on XOZ face of curved surface at the bottom of shoe last or hat block; Be added with the y coordinate figure of the coordinate points of curved surface at the bottom of corresponding shoe last or hat block after the pressure pulse distribution values characterized with y coordinate figure is multiplied by conversion coefficient k, realize according to plantar pressure momentum distribution surface, to the amendment of curved surface at the bottom of shoe last or hat block, obtaining curved surface at the bottom of amended shoe last or hat block; Curved surface at the bottom of amended shoe last or hat block and curved surface of last curved surface are merged, and obtains the shoe tree data model of plantar pressure comfortableness design through fairing processing; Conversion coefficient k verifies by experiment and determines.
The plantar pressure comfortableness design passing through the parametric modifying of curved surface at the bottom of the shoe last or hat block based on the shoe tree data model of plantar pressure momentum distribution, the shoe tree data model obtained can make manufactured footwear effectively reduce when wearing, and plantar pressure is concentrated, raising plantar pressure comfortableness.
Claims (1)
1., based on the shoe last designing method of foot or shoe tree geometric properties, it is characterized in that carrying out as follows:
Step one, the data structure setting up shoe tree characteristic model and shoe tree property data base
Definition shoe tree feature comprises: style, shoe last or hat block type, shoe last or hat block is long, shoe last or hat block is wide, lift up before axis, shoe last or hat block return pulley profile, shoe tree three contour, shoe tree at the bottom of shoe last or hat block with shoe tree after lift up; Set up according to shoe last designing standard and reflect that the data model of logical relation between shoe tree feature is the data structure of shoe tree characteristic model; According to the data structure of shoe tree characteristic model, the shoe tree feature concluding shoe last designing standard, crowd's foot type rule and existing various style shoe tree enters the numerical space of shoe tree property data base as shoe tree characteristic model; Described shoe tree three contour is that instep encloses, the sole of the foot encloses and encloses with pocket;
Step 2, extract the shoe tree data model of newly-increased various style shoe tree feature and stored in shoe tree property data base
A, carry out sparse to the three dimensional point cloud of shoe tree data model in rectangular coordinate system OXYZ of newly-increased various style respectively, make the distance between adjacent curved surface coordinate points be not less than 1 millimeter; The position of described shoe tree data model in rectangular coordinate system and orientation are adjusted, axial plane in shoe tree is overlapped with YOZ face, and make described shoe tree data model directly can express part shoe tree feature in shoe last designing standard in rectangular coordinate system, lift up before described part shoe tree feature comprises shoe tree, lift up after shoe tree with shoe last or hat block at the bottom of axis; Define the adjusted position of described shoe tree data model in rectangular coordinate system and be set to normal place, the shoe tree data model defined under described normal place is standard shoe tree data model;
B, the shoe tree feature extracted in described standard shoe tree data model, comprising:
Acquisition shoe last or hat block is long and shoe last or hat block is wide to utilize the coordinate of standard shoe tree data model in rectangular coordinate system to calculate;
The curve that in extraction standard shoe tree data model, axial plane is crossing with shoe last or hat block bottom surface is axis at the bottom of shoe last or hat block;
The curve extracting standard shoe tree data model three contour place plane crossing with shoe tree data model is respectively shoe tree three contour;
By two radius-of-curvature smallest point in each cross-section curve in criterion shoe tree data model, and obtain shoe last or hat block return pulley profile through fairing;
Lift up before obtaining shoe tree according to the normal place of standard shoe tree data model in rectangular coordinate system and orientation with shoe tree after lift up;
C, in shoe tree property data base, add the shoe tree feature of the shoe tree data model of described newly-increased various style;
Step 3, set up the strategy that shoe tree characteristic model drives standard shoe tree data model to rebuild:
To each the shoe tree feature of shoe tree data model being added with newly-increased various style, set up algorithm respectively to realize and drive the surface coordinates point on standard shoe tree data model to redistribute with its variable quantity, determine the scope of the surface coordinates point that will redistribute and the change strategy of surface coordinates point coordinate value; By debugging algorithm and corresponding program, the numerical value change of each shoe tree feature can be reflected in standard shoe tree numerical model and standard shoe tree numerical model after being out of shape still keeps smooth and fairing, maintenance primary standard shoe tree numerical model style characteristics;
Step 4, be met the shoe tree data model of design requirement by the new shoe tree characteristic model of design:
A, select shoe tree style and shoe tree characteristic parameter according to shoe tree property data base or individual demand, design shoe tree characteristic model;
The standard shoe tree data model of shoe tree characteristic model to selected shoe tree style that b, utilization are set up carries out characteristic parameter and drives reconstruction, realize the surface coordinates point redistribution of the standard shoe tree data model of selected shoe tree style, obtain every shoe tree characteristic parameter and meet design requirement, keep the shoe tree data model of style feature simultaneously.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510169361.3A CN104750942B (en) | 2012-12-05 | 2012-12-05 | Shoe tree comfortableness design method based on foot or shoe tree geometric properties |
| CN201210515007.8A CN103020344B (en) | 2012-12-05 | 2012-12-05 | Method for designing shoe trees based on geometrical characteristics of feet or shoe trees |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210515007.8A CN103020344B (en) | 2012-12-05 | 2012-12-05 | Method for designing shoe trees based on geometrical characteristics of feet or shoe trees |
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| CN201510169361.3A Division CN104750942B (en) | 2012-12-05 | 2012-12-05 | Shoe tree comfortableness design method based on foot or shoe tree geometric properties |
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| CN201210515007.8A Expired - Fee Related CN103020344B (en) | 2012-12-05 | 2012-12-05 | Method for designing shoe trees based on geometrical characteristics of feet or shoe trees |
| CN201510169361.3A Expired - Fee Related CN104750942B (en) | 2012-12-05 | 2012-12-05 | Shoe tree comfortableness design method based on foot or shoe tree geometric properties |
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| CN201510169361.3A Expired - Fee Related CN104750942B (en) | 2012-12-05 | 2012-12-05 | Shoe tree comfortableness design method based on foot or shoe tree geometric properties |
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| US20160328496A1 (en) * | 2015-05-04 | 2016-11-10 | Siemens Product Lifecycle Management Software Inc. | System and method for editing a model |
| CN106901445B (en) * | 2017-03-22 | 2022-09-20 | 青岛一小步科技有限公司 | Orthopedic shoe manufacturing method and system based on pressure imaging and three-dimensional modeling technology |
| CN107928006B (en) * | 2017-11-15 | 2020-08-11 | 广东工业大学 | Design method of shoe tree model and related device |
| CN109002471A (en) * | 2018-06-13 | 2018-12-14 | 东莞时谛智能科技有限公司 | A kind of individual's shoe tree data base management method and system |
| CN109998226B (en) * | 2019-03-22 | 2020-04-24 | 吴立俊 | Design method of fat-thin last |
Citations (3)
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| CN1520263A (en) * | 2002-06-11 | 2004-08-11 | ղ��� | Shoe pattern design method, shoe pattern design device, foot measurer, and foot positioning device of foot measurer |
| CN101855637A (en) * | 2007-09-18 | 2010-10-06 | 马加里有限责任公司 | Method for calculating the geometry of a last for customised footwear |
| CN102429409A (en) * | 2011-11-17 | 2012-05-02 | 徐波 | Method of design bottom arcs of shoe last |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007032609A1 (en) * | 2007-07-11 | 2009-03-05 | Corpus.E Ag | Cost-effective detection of the inner spatial form of footwear and bodies |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1520263A (en) * | 2002-06-11 | 2004-08-11 | ղ��� | Shoe pattern design method, shoe pattern design device, foot measurer, and foot positioning device of foot measurer |
| CN101855637A (en) * | 2007-09-18 | 2010-10-06 | 马加里有限责任公司 | Method for calculating the geometry of a last for customised footwear |
| CN102429409A (en) * | 2011-11-17 | 2012-05-02 | 徐波 | Method of design bottom arcs of shoe last |
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| CN103020344A (en) | 2013-04-03 |
| CN104750942A (en) | 2015-07-01 |
| CN104750942B (en) | 2017-09-22 |
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