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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Geometry &amp; Graphics</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Geometry &amp; Graphics</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Геометрия и графика</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="print">2308-4898</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">13169</article-id>
   <article-id pub-id-type="doi">10.12737/21533</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>Научные проблемы геометрии</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>Scientific problems of geometry</subject>
    </subj-group>
    <subj-group>
     <subject>Научные проблемы геометрии</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">Geometrical Modeling and Graphics of Kinematical Ruled Surfaces Based on Triad of Contacting Axoids</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Геометрическое моделирование и графика кинематических линейчатых поверхностей на основе триады контактирующих аксоидов</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Рачковская</surname>
       <given-names>Г. С.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Rachkovskaya</surname>
       <given-names>G. С.</given-names>
      </name>
     </name-alternatives>
    </contrib>
   </contrib-group>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2016-09-19T00:00:00+03:00">
    <day>19</day>
    <month>09</month>
    <year>2016</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2016-09-19T00:00:00+03:00">
    <day>19</day>
    <month>09</month>
    <year>2016</year>
   </pub-date>
   <volume>4</volume>
   <issue>3</issue>
   <fpage>46</fpage>
   <lpage>52</lpage>
   <self-uri xlink:href="https://zh-szf.ru/en/nauka/article/13169/view">https://zh-szf.ru/en/nauka/article/13169/view</self-uri>
   <abstract xml:lang="ru">
    <p>В данной работе предлагается новая геометрическая модель для построения кинематических линейчатых&#13;
поверхностей, основанная на согласованных движениях в&#13;
триадах, контактирующих аксоидов, состоящих из одного&#13;
неподвижного (1) и двух подвижных (2, 3) аксоидов. Методическая&#13;
основа предлагаемой геометрической модели состоит в том,&#13;
что движение аксоида 2 относительно неподвижного аксоида&#13;
1 задает согласованное с этим движением обратное движение&#13;
аксоида 3 относительно аксоида 2, причем взаимное расположение аксоидов триады в процессе всего движения сохраняется неизменным. В результате этих согласованных движений одна из прямолинейных образующих подвижного аксоида 3 генерирует в неподвижной системе координат, связанной&#13;
с аксоидом 1, новую кинематическую линейчатую поверхность.&#13;
Показано, что переход от известных моделей контактирующих&#13;
пар линейчатых поверхностей, таких как «плоскость – цилиндр», «плоскость – конус», «цилиндр – цилиндр» или «конус – конус» к моделям согласованных движений в триадах&#13;
контактирующих аксоидов открывает дополнительные возможности для построения новых кинематических линейчатых&#13;
поверхностей. Для предложенной геометрической модели&#13;
разработано соответствующее аналитическое описание и&#13;
выполнена компьютерная графика генерируемых кинематических линейчатых поверхностей на основе следующих триад&#13;
аксоидов: «плоскость – круговой цилиндр – круговой цилиндр»,&#13;
«плоскость – круговой конус – круговой конус», «круговой&#13;
цилиндр – круговой цилиндр – круговой цилиндр», «круговой&#13;
конус – круговой конус – круговой конус». Параметрическая&#13;
зависимость генерируемых поверхностей от исходных линейчатых поверхностей триады контактирующих аксоидов обеспечивает широкое разнообразие результирующих линейчатых&#13;
поверхностей, что с учетом графических возможностей разработанного ранее приложения ArtMathGraph позволяет использовать предложенную модель в качестве эффективного&#13;
инструмента компьютерного моделирования технологически&#13;
востребованных линейчатых поверхностей.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>New geometrical model for constructing kinematical&#13;
ruled surfaces on the base of interrelated movements in triads of&#13;
contacting axoids, comprising of one fixed (1) axoid and two moving&#13;
(2, 3) axoids, is proposed in this research. The methodical&#13;
principles of this model is that the movement of axoid 2 along fixed&#13;
axoid 1 defines such reconciled with it backward motion of axoid&#13;
3 along axoid 2, that the positional relationship of triad’s axoids is&#13;
kept constant throughout the movement. As a result, the movement&#13;
of one of rectilinear generators of moving axoid 3 generates a new&#13;
kinematical ruled surface in the coordinate system, bound to fixed&#13;
axoid 1. It’s been shown that the transition from well-known models&#13;
of such contacting pairs of ruled surfaces as “plane – cylinder”,&#13;
“plane – cone”, “cylinder – cylinder”, or “cone – cone” to models&#13;
of interrelated movements in triads of contacting axoids opens&#13;
up new opportunities for constructing various kinematical ruled&#13;
surfaces. The corresponding analytical representation and computer&#13;
visualization of generated kinematical ruled surfaces, based&#13;
on triads of contacting axoids “plane – circular cylinder – circular&#13;
cylinder”, “plane – circular cone – circular cone”, “circular cylinder&#13;
– circular cylinder – circular cylinder”, and “circular cone&#13;
– circular cone – circular cone”, has been developed. The parametric&#13;
dependence of generated ruled surfaces on original ruled&#13;
surfaces of the triad of contacting axoids offers a wide variety of&#13;
resulting ruled surfaces. The proposed model with regard to graphic&#13;
capabilities of the previously developed software application&#13;
“ArtMathGraph” can be used as an instrument for computerized&#13;
modeling technologically in-demand ruled surfaces.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>геометрическое моделирование</kwd>
    <kwd>аналитическая геометрия</kwd>
    <kwd>кинематическая линейчатая поверхность</kwd>
    <kwd>компьютерная графика.</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>geometrical modeling</kwd>
    <kwd>analytical geometry</kwd>
    <kwd>kinematical&#13;
ruled surface</kwd>
    <kwd>computer graphics.</kwd>
   </kwd-group>
  </article-meta>
 </front>
 <body>
  <p>Современные достижения геометрического моделирования аналитических поверхностей систематизированы в «Энциклопедии аналитических поверхностей» [12], включившей в себя, в частности, класс технологически востребованных линейчатых поверхностей [15; 16; 19]. Разработка новых геометрических моделей построения оригинальных аналитических поверхностей в сочетании с использованием современных технологий компьютерной графики [3; 7; 13] моделируемых поверхностей относится к одному из актуальных направлений аналитической геометрии линейчатых поверхностей [14; 17; 30], включая прикладные аспекты в строительстве и архитектуре [9; 10; 18].</p>
 </body>
 <back>
  <ref-list>
   <ref id="B1">
    <label>1.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Короткий В.А. Компьютерное моделирование кинематических поверхностей [Текст] / В.А. Короткий, Е.А. Усманова, Л.И. Хмарова // Геометрия и графика. - 2016. - Т. 3. - № 4. - C. 19-26. - DOI: 10.12737/17347.</mixed-citation>
     <mixed-citation xml:lang="en">Khmarova L., Korotkiy V., Usmanova E. Computer Simulation of Kinematic Surfaces. Geometriya i grafika. [Geometry and graphics], 2016, V. 3, I. 4. p. 19-26. DOI: 10.12737/17347 (in Russian)</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B2">
    <label>2.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Кривошапко С.Н. Аналитические поверхности [Текст] / С.Н. Кривошапко, В.Н. Иванов, С.М. Халаби. - М.: Наука, 2006. - 536 с.</mixed-citation>
     <mixed-citation xml:lang="en">Krivoshapko S.N., Ivanov V.N., Khalabi S.M. Analiticheskie poverchnosti [Analytical Surfaces]. Moscow, Nauka Publ., 2006. 536 p. (in Russian)</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B3">
    <label>3.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Михайленко В.Е. Инженерная и компьютерная графика [Текст] / В.Е. Михайленко, В.В. Ванин, С.Н. Ковалев. - К.: Каравелла, 2013. - 328 с.</mixed-citation>
     <mixed-citation xml:lang="en">Mihajlenko V.E., Vanin V.V., Kovalyev S.N. Inzhenernaja i komp&amp;#180;juternaja grafika [Engineering and computer graphics: Handbook]. Kiev, Karavella Publ., 2013, 328 p. (in Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B4">
    <label>4.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Рачковская Г.С. Геометрическое и компьютерное моделирование кинематических линейчатых поверхностей (однополостный гиперболоид вращения в качестве неподвижного и подвижного аксоидов) [Текст] / Г.С. Рачковская, Ю.Н. Харабаев // Прикладная геометрия и инженерная графика. - 2011. - Вып. 87. - С. 319-323.</mixed-citation>
     <mixed-citation xml:lang="en">Rachkovskaya G.S. Geometrical and computer modeling of kinematical ruled surfaces (one-sheet hyperboloid of revolution as fixed and moving axoids). Prikladnaya geo-metriya i inzhenernaya grafica [Applied Geometry and Engineering Graphics]. 2011, Kiev, V. 87, pp. 319-323. (in Russian)</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B5">
    <label>5.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Рачковская Г.С. Кинематические линейчатые поверхности на основе комплексного движения одного аксоида по другому (однополостный гиперболоид вращения в качестве неподвижного и подвижного аксоидов) [Текст] / Г.С. Рачковская, Ю.Н. Харабаев // Строительная механика инженерных конструкций и сооружений. - 2014. - № 3. - С. 23-31.</mixed-citation>
     <mixed-citation xml:lang="en">Rachkovskaya G.S., Kharabayev Yu.N. Kinematical ruled surfaces on the base of complex moving one axoid along another (one-sheet hyperboloid of revolution as fixed and moving axoids). Stroitelnaya mechanika inzhenernich konstructcii i sooruzhenii [Structural mechanics of engineering constructions and buildings]. 2014, I. 3, pp. 23-31. (in Russian)</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B6">
    <label>6.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Сальков Н.А. Параметрическая геометрия в геометрическом моделировании [Текст] / Н. А. Сальков // Геометрия и графика. - 2014. - Т. 2. - № 3. - C. 7-13. - DOI: 10.12737/6519.</mixed-citation>
     <mixed-citation xml:lang="en">Sal&amp;#180;kov, N. Parametric Geometry in Geometric Modeling. Geometriya i grafika [Geometry and graphics], 2014, V. 2, I. 3, pp. 7-13. DOI: 10.12737/6519 (in Russian)</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B7">
    <label>7.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Хейфец А.Л. Инженерная 3D-компьютерная графика [Текст] / А.Л. Хейфец [и др.]. - М.: Юрайт, 2013. - 464 с.</mixed-citation>
     <mixed-citation xml:lang="en">Kheyfets A.L., Loginovskiy A., Butorina I.V., Vasil&amp;#180;eva V.N. Inzhenernaja 3-D komp&amp;#180;juternaja grafika [Engineering 3-D computer graphics: Handbook]. Moscow, Urait Publ., 2013, 464 p. (in Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B8">
    <label>8.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Barton M. Circular arc snakes and kinematic surface generation / M. Barton, L. Shi, M. Kilian, J. Wallner, H. Pottmann // Computer Graphics Forum. 2013. V. 32. DOI: 10.1111/cgf.12020.</mixed-citation>
     <mixed-citation xml:lang="en">Barton M., Shi L., Kilian M., Wallner J., Pottmann H. Circular arc snakes and kinematic surface generation. Computer Graphics Forum. 2013, V. 32. DOI: 10.1111/cgf.12020</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B9">
    <label>9.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Fallavollita F. The ruled surfaces in stone architecture / F. Fallavollita, M. Salvatore // Proceedings of the 10th International Forum of Studies (Architecture Design Landscape (the ways of the merchants)). 2012. P. 261-269.</mixed-citation>
     <mixed-citation xml:lang="en">Fallavollita F., M. Salvatore M. The ruled surfaces in stone architecture. Proceedings of the 10th International Forum of Studies (Architecture Design Landscape (the ways of the merchants)). 2012, pp. 261-269</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B10">
    <label>10.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Flöry S. Ruled Surfaces for Rationalization and Design in Architecture / S. Flöry, H. Pottmann // Advances in Architectural Geometry. 2010. P. 103-109.</mixed-citation>
     <mixed-citation xml:lang="en">Flöry S., Pottmann H. Ruled Surfaces for Rationalization and Design in Architecture. Advances in Architectural Geometry. Springer, 2010, pp. 103-109.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B11">
    <label>11.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Korn G. Mathematical handbook for scientists and engineers / G. Korn, T. Korn. NY, USA: McGraw-Hill, 1961. 720 p.</mixed-citation>
     <mixed-citation xml:lang="en">Korn G., Korn T. Mathematical handbook for scientists and engineers. NY, USA, McGraw-Hill Publ., 1961. 720 p.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B12">
    <label>12.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Krivoshapko S.N. Encyclopedia of Analytical Surfaces / S.N. Krivoshapko, V.N. Ivanov. - Switzerland: Springer, 2015. 752 p. DOI: 10.1007/978-3-319-11773-7.</mixed-citation>
     <mixed-citation xml:lang="en">Krivoshapko S.N., Ivanov V.N. Encyclopedia of Analytical Surfaces. Switzerland, Springer, 2015. 752 p. DOI: 10.1007/978-3-319-11773-7.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B13">
    <label>13.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Marschner S., Shirley P. Fundamentals of Computer Graphics / S. Marschner, P. Shirley. USA: Taylor &amp;amp; Francis Group, 2016. 723 p.</mixed-citation>
     <mixed-citation xml:lang="en">Marschner S., Shirley P. Fundamentals of Computer Graphics. USA. Taylor &amp;amp; Francis Group, 2016. 723 p.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B14">
    <label>14.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Odehnal B. Computing with discrete models of ruled surfaces and line congruences / B. Odehnal, H. Pottmann // Electron. J. Comput. Kinematics. 2002. V. 1/1. § 20 // Proceedings of the workshop “Computational Kinematics”. Seoul, Republic of Korea, 2001.</mixed-citation>
     <mixed-citation xml:lang="en">Odehnal B., Pottmann H. Computing with discrete models of ruled surfaces and line congruences. Electron. J. Comput. Kinematics. 2002. V. 1/1. - § 20. Proceedings of the workshop “Computational Kinematics”. Seoul, Republic of Korea. 2001.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B15">
    <label>15.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Odehnal B. Subdivision Algorithms for Ruled Surfaces / B. Odehnal // Journal for Geometry and Graphics. 2008. V. 12. No. 1. P. 1-18.</mixed-citation>
     <mixed-citation xml:lang="en">Odehnal B. Subdivision Algorithms for Ruled Surfaces. Journal for Geometry and Graphics. 2008. V. 12. No. 1. P. 1-18.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B16">
    <label>16.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Peternell M. On the computational geometry of ruled surfaces / M. Peternell, H. Pottmann, B. Ravani // Computer-Aided Design. 1999. V. 31. P. 17-32.</mixed-citation>
     <mixed-citation xml:lang="en">Peternell M., Pottmann H., Ravani B. On the computational geometry of ruled surfaces. Computer-Aided Design. 1999. V. 31. P. 17-32.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B17">
    <label>17.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Peternell M. Conchoid surfaces of rational ruled surfaces / M. Peternell, D. Gruber, J. Sendra // Computer Aided Geometric Design. 2011. V. 28. No. 7. P. 395-446.</mixed-citation>
     <mixed-citation xml:lang="en">Peternell M. Gruber D., Sendra J. Conchoid surfaces of rational ruled surfaces. Computer Aided Geometric Design. 2011. V. 28. No. 7. P. 395-446.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B18">
    <label>18.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Pottmann H. Architectural Geometry / H. Pottmann, M. Eigensatz, A. Vaxman, J. Wallner // Computers &amp;amp; Graphics. 2015. V. 47. P. 145-164. DOI: 10.1016/j.cag.2014.11.002</mixed-citation>
     <mixed-citation xml:lang="en">Pottmann H., Eigensatz M., Vaxman A., Wallner J. Architectural Geometry. Computers &amp;amp; Graphics. 2015. V. 47. P. 145-164. DOI: 10.1016/j.cag.2014.11.002.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B19">
    <label>19.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Prousalidou E. A parametric representation of ruled surfaces / E. Prousalidou, S. Hanna // Proceedings of the 12th International CAAD Futures Conference. Netherlands. Springer, 2007. P. 265-278. DOI: 10.1007/978-1-4020-6528-6_20.</mixed-citation>
     <mixed-citation xml:lang="en">Prousalidou E., Hanna S. A parametric representation of ruled surfaces. Proceedings of the 12th International CAAD Futures Conference. Netherlands. Springer. 2007. P. 265-278. DOI: 10.1007/978-1-4020-6528-6_20.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B20">
    <label>20.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Rachkovskaya G.S. Mathematical modelling of kinematics of ruled surfaces based on conical transformations of torses / G.S. Rachkovskaya, Yu.N. Kharabayev // Proceedings of the 10th International Conference on Geometry and Graphics. Kiev, Ukraine. 2002. V. 1. P. 283-286.</mixed-citation>
     <mixed-citation xml:lang="en">Rachkovskaya G.S., Kharabayev Yu.N. Mathematical modelling of kinematics of ruled surfaces based on conical transformations of torses. Proceedings of the 10th International Conference on Geometry and Graphics. Kiev, Ukraine. 2002. V. 1. P. 283-286.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B21">
    <label>21.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Rachkovskaya G.S. Computer graphics of kinematic surfaces / G.S. Rachkovskaya, Yu.N. Kharabayev, N.S. Rachkovskaya // Proceedings of the 12th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision. Plzen, Czech Republic. 2004. P. 141-144.</mixed-citation>
     <mixed-citation xml:lang="en">Rachkovskaya G.S., Kharabayev Yu.N., Rachkovskaya N.S. Computer graphics of kinematic surfaces. Proceedings of the 12th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision. Plzen, Czech Republic. 2004. P. 141-144.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B22">
    <label>22.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Rachkovskaya G.S. The computer modelling of kinematic linear surfaces (based on the complex moving a cone along a torse) / G.S. Rachkovskaya, Yu.N. Kharabayev, N.S. Rachkovskaya // Proceedings of the International Conference on Computing, Communications and Control Technologies (CCCT), Austin (Texas), USA, 2004. V. 1. P. 107-111.</mixed-citation>
     <mixed-citation xml:lang="en">Rachkovskaya G.S., Kharabayev Yu.N., Rachkovskaya N.S. The computer modelling of kinematic linear surfaces (based on the complex moving a cone along a torse). Proceedings of the International Conference on Computing, Communications and Control Technologies (CCCT), Austin (Texas), USA. 2004. V. 1. P. 107-111.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B23">
    <label>23.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Rachkovskaya G.S. Computer composition of the transformed classical surfaces as the ways and means of the construction of visual models of realistic objects (The new software application “ArtMathGraph”) / G.S. Rachkovskaya, Yu.N. Kharabayev, N.S. Rachkovskaya // Proceedings of the 15th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision. Plzen, Czech Republic. 2007. P. 29-32.</mixed-citation>
     <mixed-citation xml:lang="en">Rachkovskaya G.S., Kharabayev Yu.N., Rachkovskaya N.S. Computer composition of the transformed classical surfaces as the ways and means of the construction of visual models of realistic objects (The new software application “ArtMath-Graph”). Proceedings of the 15th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision. Plzen, Czech Republic. 2007. P. 29-32.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B24">
    <label>24.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Rachkovskaya G.S. Kinematic ruled surfaces (one-sheet hyperboloid of revolution as fixed and moving axoids) / G.S. Rachkovskaya, Yu.N. Kharabayev, N.S. Rachkovskaya // Proceedings of the 13th International Conference on Geometry and Graphics. Dresden, Germany, 2008. P. 190-191.</mixed-citation>
     <mixed-citation xml:lang="en">Rachkovskaya G.S., Kharabayev Yu.N., Rachkovskaya N.S. Kinematic ruled surfaces (one-sheet hyperboloid of revolution as fixed and moving axoids). Proceedings of the 13th International Conference on Geometry and Graphics. Dresden, Germany. 2008. P. 190-191.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B25">
    <label>25.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Rachkovskaya G.S. Geometric modeling and computer graphics of kinematic ruled surfaces on the base of complex moving one axoid along another (one-sheet hyperboloid of revolution as fixed and moving axoids) / G.S. Rachkovskaya, Yu.N. Kharabayev // Proceedings of the 17th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision. Plzen, Czech Republic, 2009. P. 31-34.</mixed-citation>
     <mixed-citation xml:lang="en">Rachkovskaya, G.S., Yu.N. Kharabayev, N.S. Rachkovskaya. Geometric modeling and computer graphics of kinematic ruled surfaces on the base of complex moving one axoid along another (one-sheet hyperboloid of revolution as fixed and moving axoids). Proceedings  of the 17th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision. Plzen, Czech Republic. 2009. P. 31-34.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B26">
    <label>26.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Rachkovskaya G.S. Complex moving one axoid along another as the base of the new kinematic ruled surfaces (geometrical model &amp;amp; computer graphics) / G.S. Rachkovskaya, Yu.N. Kharabayev // Proceedings of the International Workshop on Line Geometry &amp;amp; Kinematics. Paphos, Cyprus. IWLGK-11. 2011. P. 81-86.</mixed-citation>
     <mixed-citation xml:lang="en">Rachkovskaya G.S., Kharabayev Yu.N. Complex moving one axoid along another as the base of the new kinematic ruled surfaces (geometrical model &amp;amp; computer graphics). Proceedings of the International Workshop on Line Geometry &amp;amp; Kinematics. Paphos, Cyprus. IW-LGK-11. 2011. P. 81-86.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B27">
    <label>27.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Rachkovskaya G.S. Geometrical model and computer graphics of kinematic ruled surfaces on the base of pairs axoids: torse-cone and cone-torse / G.S. Rachkovskaya, Yu.N. Kharabayev, N.S. Rachkovskaya // Proceedings of the 15th International Conference on Geometry and Graphics. Montreal, Canada. 2012. P. 151-152.</mixed-citation>
     <mixed-citation xml:lang="en">Rachkovskaya G.S., Kharabayev Yu.N., Rachkovskaya N.S. Geometrical model and computer graphics of kinematic ruled surfaces on the base of pairs axoids: torse-cone and cone-torse. Proceedings of the 15th International Conference on Geometry and Graphics. Montreal, Canada. 2012, pp. 151-152.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B28">
    <label>28.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Rachkovskaya G.S. Two possible variants of geometrical model of constructing kinematic surfaces on the base of interior revolving one axoid by the another one / G.S. Rachkovskaya, Yu.N. Kharabayev, N.S. Rachkovskaya // Proceedings of the 16th International Conference on Geometry and Graphics. Innsbruck, Austria, 2014. P. 276-279.</mixed-citation>
     <mixed-citation xml:lang="en">Rachkovskaya G.S., Kharabayev Yu.N., Rachkovskaya N.S. Two possible variants of geometrical model of constructing kinematic surfaces on the base of interior revolving one axoid by the another one. Proceedings of the 16th International Conference on Geometry and Graphics. Innsbruck, Austria. 2014, pp. 276-279.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B29">
    <label>29.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Sprott K. Kinematic generation of ruled surfaces / K. Sprott, B. Ravani // Advanced in Computational Mathematics. 2002. V. 17. P. 115-133. DOI: 10.1023/A:1015211729988.</mixed-citation>
     <mixed-citation xml:lang="en">Sprott K., Ravani B. Kinematic generation of ruled surfaces. Advanced in Computational Mathematics. 2002. V. 17. P. 115-133. DOI: 10.1023/A:1015211729988.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B30">
    <label>30.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Sprott K. Cylindrical milling of ruled surfaces / K. Sprott, B. Ravani // Advanced in Manufacturing Technology. 2008. V. 38. P. 649-656.</mixed-citation>
     <mixed-citation xml:lang="en">Sprott K., Ravani B. Cylindrical milling of ruled surfaces. Advanced in Manufacturing Technology. 2008. V. 38. P. 649-656.</mixed-citation>
    </citation-alternatives>
   </ref>
  </ref-list>
 </back>
</article>
