Relevant bibliographies by topics / 3D geometri

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic '3D geometri'

Author: Grafiati
Published: 29 September 2021
Last updated: 18 July 2025

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Journal articles on the topic "3D geometri"

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Suryadinata, Nurain, Tina Yunarti, and M. Coesamin. "IDENTIFIKASI PENGETAHUAN CALON GURU SEKOLAH DASAR TERHADAP PEMBELAJARAN GEOMETRI DIMENSI TIGA." EMTEKA: Jurnal Pendidikan Matematika 6, no. 1 (2025): 381–89. https://doi.org/10.24127/emteka.v6i1.7476.

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Penelitian ini melaporkan hasil identifikasi awal terhadap pengetahuan calon guru sekolah dasar terkait pembelajaran geometri dimensi tiga (3D). Sebanyak 32 mahasiswa program studi Pendidikan Guru Sekolah Dasar (PGSD) dijadikan subjek penelitian dan diberikan 15 pertanyaan yang dikaitkan dengan level berpikir geometri van Hiele, serta dikaitkan dengan konsep Teachers’ Geometry Content Knowledge (GCK), Knowledge of Geometry and Students (KGS), dan Knowledge of Geometry and Teaching (KGT). Data dianalisis secara deskriptif menggunakan persentase jawaban benar di setiap butir pertanyaan. Hasil penelitian menunjukkan bahwa sebagian besar mahasiswa calon guru sekolah dasar yang menjadi subjek penelitian masih mengalami miskonsepsi terhadap beberapa konsep geometri dimensi tiga, serta subjek penelitian tersebut belum menguasai sepenuhnya penerapan level berpikir geometri van Hiele dalam pembelajaran geometri dimensi tiga.
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Maarif, Safiil. "Pendampingan Siswa-Siswi MTs Al-Hikmah Dalam Mengoperasikan Software Geometri Cabri 3D V2." Jurnal Pengabdian Kepada Masyarakat 3, no. 2 (2023): 1. http://dx.doi.org/10.53712/ngu.v3i2.2138.

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Era industry 4.0, proses pembelajaran matematika seyogyanya harus diiringi dengan penggunaan media pembelajaran berbasis teknologi. Salah satu contoh Media pembelajaran teknologi yaitu media pembelajaran berbasis komputer yang bisa berupa software – software pembelajaran yang telah berkembang pada saat ini. MTs Al-Hikmah merupakan salah satu lembaga pendidikan swasta tingkat SLTP yang terletak di desa Janti Jogoroto Jombang. Di madrasah ini, pembelajaran matematika materi geometri khususnya bangun ruang seringkali disampaikan tanpa bantuan media pembelajaran media pembelajaran elektronik (berbasis software komputer). Sehingga tidak sedikit dari siswa-siswi yang mengalami kesulitan saat memahami materi geometri bangun ruang. Solusi yang ditawarkan yaitu dengan melaksanakan Cabri 3D V2 Empowerment Program: Pendampingan Siswa-Siswi MTs Al-Hikmah Dalam Mengoperasikan Software Geometri Cabri 3D V2. Dengan tujuan setelah dilaksanakannya kegiatan ini, siswa-siswi tersebut bisa lebih mudah memahami materi matematika yang berhubungan geometri bangun ruang. Di kegiatan ini, siswa-siswi akan diajari cara mengoperasikan media pembelajaran berbasis teknologi komputer yaitu software geometri Cabri 3D V2. Metode pelaksanaan Cabri 3D V2 Empowerment Program dibagi menjadi 5 tahap yaitu (1) tahap persiapan : melakukan survey awal, perizinan, sosialisasi dan penentuan lokasi kegiatan; (2) tahap pelaksanaan kegiatan: kegiatan akan dilaksanakan di laboratorium komputer MTs Al-Hikmah; (3) tahap evaluasi: Evaluasi kegiatan dilakukan selama proses pelatihan berlangsung; (4) tahap pendampingan: Pendampingan dilakukan hingga siswa dapat mengoperasikan dengan maksimal software geometri Cabri 3D V2; (5) tahap pelaporan. Hasil pelaksanaan kegiatan pengabdian dapat dijelaskan bahwa siswa/i MTs Al-Hikmah Janti yang semula tidak mengetahui sama sekali tentang software geometri Cabri 3D V2 untuk membuat bangun datar dan bangun ruang, dengan kegiatan software geometri Cabri 3D V2 siswa akhirnya mengetahuinya. Melalui kegiatan ini pula lah siswa/i dapat mempelajari geometri dengan obyek yang seperti konkret bahkan lebih baik dari obyek konkret. Siswa/i telah bisa mengoperasikan software geometri Cabri 3D V2 dengan baik.
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Wahyuni, Septia, and Elfi Rahmadhani. "Pelatihan Penggunaan Cabri 3D Pada Mata Kuliah Geometri." Jurnal Pengabdian Masyarakat MIPA dan Pendidikan MIPA 3, no. 1 (2019): 1–3. http://dx.doi.org/10.21831/jpmmp.v3i1.21958.

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Cabri 3D adalah salah satu aplikasi yang dapat digunakan dalam pembelajaran geometri, misalnya menggambar bangun ruang, penentuan letak titik, penentuan letak garis, perhitungan luas serta volume bangun ruang secara cepat, tepat dan akurat. Peserta pelatihan adalah mahasiswa prodi Tadris Matematika semester V, yang merupakan para calon guru matematika yang dituntut untuk menguasai konsep geometri secara baik. Software Cabri 3D ini dapat membantu mahasiswa untuk memperdalam kemampuan analisis pada materi geometri. Metode yang digunakan dalam pelatihan meliputi tutorial dan praktek secara langsung. Berdasarkan pengamatan dan diskusi dengan peserta pelatihan, tampak bahwa peserta bersemangat dan antusias mengikuti pelatihan. Hasil pelatihan ini peserta mendapat pengetahuan secara teoritis dan memiliki kemampuan mengggunakan software Cabri 3D pada materi geometri.
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Che Maideen, Normariah, MOHD IKMAL HISHAM ABDUL RAHIM, SALINA BUDIN, KOAY MEI HYIE, and HAMID YUSOFF. "The Effect of Layer Thickness on Repeatability of 3d Printed PLA Parts Produced Using Openware 3D Printer." IIUM Engineering Journal 23, no. 2 (2022): 218–27. http://dx.doi.org/10.31436/iiumej.v23i2.2137.

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Fused Filament Fabrication (FFF) is categorized as an additive manufacturing process, recognized as the simplest way to accomplish 3D printing. Previous studies have proven that FFF can be trusted to create custom parts with high complexity. However, some performance issues still exist with this method that must be resolved to improve conventional manufacturing techniques. One of them is its repeatability performance that is debatable when it comes to producing repetitive runs of similar parts. Printing parameter is one of the factors that play a significant role on the repeatability performance of parts produced. In this study, the effect of layer thickness on the repeatability of 3D printed PLA, produced using an Openware 3D printer (Espresso F220), was investigated. Two product geometries (Part A and Part B) were produced. Layer thickness was chosen as a variable parameter (0.1 mm, 0.2 mm, and 0.3 mm) for each geometry. Data to measure repeatability of the printed PLA parts were determined based on the measurements of length, width, thickness and surface roughness for each geometry. Then, repeatability performance was analyzed through One-way ANOVA analysis. From the results, the layer thickness parameter did influence dimensional quality and repeatability of samples produced. Part length and thickness offered better repeatability performance, to both product geometries being compared, in width and surface roughness. The study reveals that variations in sample properties depends on not only one, but also every printing parameter involved. Repeatability performance can be improved by identifying the ideal combination of printing parameters to produce good part quality. ABSTRAK: : Fabrikasi Filamen Fius (FFF) yang dikategori sebagai proses pembuatan tambahan, diakui sebagai kaedah termudah bagi menghasilkan pencetakan 3D. Kajian terdahulu telah membuktikan bahawa FFF dapat menghasilkan komponen khas yang kompleks. Walau bagaimanapun, beberapa isu peningkatan mutu masih berlaku, iaitu kaedah ini masih perlu diperbetulkan bagi membaiki teknik pembuatan konvensional. Salah satu adalah peningkatan keterulangan bagi menghasilkan komponen yang serupa secara berulang. Parameter pencetakan adalah salah satu faktor yang berperanan penting bagi peningkatan keterulangan komponen yang dihasilkan. Kajian ini mengkaji tentang kesan ketebalan lapisan terhadap kebolehulangan PLA bercetak 3D yang dihasilkan melalui pencetak Openware 3D (Espresso F220). Dua geometri produk (bahagian A dan B) dihasilkan. Ketebalan lapisan dipilih sebagai parameter pemboleh ubah (0.1mm, 0.2mm dan 0.3mm) bagi setiap geometri. Data bagi mengukur keterulangan bahagian PLA yang bercetak ditentukan berdasarkan pengukuran panjang, lebar, ketebalan dan kekasaran permukaan bagi setiap geometri. Kemudian, peningkatan keterulangan dianalisa melalui analisis ANOVA Sehala. Dapatan hasil menunjukkan, parameter ketebalan lapisan mempengaruhi kualiti dimensi dan kebolehulangan sampel yang dihasilkan. Panjang dan ketebalan bahagian mempunyai peningkatan keterulangan yang lebih baik bagi kedua-dua geometri produk berbanding lebar dan kekasaran permukaan. Dapatan menunjukkan bahawa variasi sifat sampel tidak hanya bergantung pada satu, malah pada setiap parameter pencetakan yang terlibat. Peningkatan keterulangan dapat diperbaiki dengan mengenal pasti kombinasi parameter pencetakan yang ideal bagi menghasilkan kualiti bahagian terbaik.
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Haryanto, Budi, Crisvin Crisvin, and Adi Yanto. "PERANCANGAN GEOMATH: APLIKASI GEOMETRI 2D/3D DENGAN KALKULATOR BENTUK 2D." Insan Pembangunan Sistem Informasi dan Komputer (IPSIKOM) 12, no. 2 (2024): 34–40. https://doi.org/10.58217/ipsikom.v12i2.310.

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GeoMath adalah aplikasi berbasis android yang menyediakan alat untuk memahami dan mengaplikasikan konsep geometri dalam dua dimensi (2D) dan tiga dimensi (3D). Meski pun memiliki kemampuan untuk mengaktualisasikan objek dalam tiga dimensi, aplikasi ini menonjol dengan kalkulator khusus yang terutama diutamakan pada geometri 2D. Pengguna dapat dengan mudah menghitung luas, keliling, dan parameter lainnya dari berbagai bentuk geometri 2D seperti persegi, persegi panjang, segitiga, dan lingkaran. Setiap rumus disajikan dengan jelas dan dipilih sesuai dengan kebutuhan pengguna. Dengan berbagai keunggulan ini, GeoMath bertujuan menjadi alat yang berguna bagi siswa, guru, dan profesional dalam mempelajari dan menerapkan konsep geometri 2D tanpa harus bergantung pada perhitungan manual yang rumit.
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Nisa, Ainun, and Kusumawati Dwiningsih. "EFEKTIVITAS PEMBELAJARAN GEOMETRI MOLEKUL MENGGUNAKAN MOBILE VIRTUAL REALITY (MVR) UNTUK MENINGKATKAN KEMAMPUAN VISUOSPASIAL." Kwangsan: Jurnal Teknologi Pendidikan 9, no. 2 (2021): 220. http://dx.doi.org/10.31800/jtp.kw.v9n2.p220--236.

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Chemistry is a branch of science that encourages various advances in various fields. However, the characteristics of chemistry which have complex concepts make it difficult for class X high school students to understand chemistry. Thus, the problem that is the focus of discussion in this study is how to overcome the low visuospatial skills of high school students in class X, so that students can understand complex concepts in chemistry. This study uses the research design and development of the 4D Thiaganrajan modified 3D Ibrahim method. This study aims to determine the effectiveness of Mobile Virtual Reality (MVR)-based molecular geometry learning media in improving visuospatial skills. The effectiveness of the MVR-based molecular geometry learning media is stated based on the interpretation of the N-Gain score. The results showed an increase in the percentage of correct answers on the posttest by 32.15% with a significance level ranging from 0.57-1 in the medium to high category. In this regard, the use of MVR-based molecular geometry learning media is said to be effective because it can improve students' visuospatial skills. That is, MVR-based molecular geometry learning media can help students to comprehensively represent molecular geometry sub-materials.AbstrakKimia merupakan salah satu cabang ilmu pengetahuan yang mendorong berbagai kemajuan di berbagai bidang. Namun, karakteristik ilmu kimia yang memiliki konsep kompleks membuat peserta didik SMA kelas X sulit memahami ilmu kimia. Dengan demikian, masalah yang menjadi fokus pembahasan di dalam penelitian ini adalah Bagaimana cara mengatasi visuospasial skills peserta didik SMA kelas X yang tergolong rendah, agar peserta didik mampu memahami konsep kompleks dalam ilmu kimia. Penelitian ini menggunakan desain penelitian dan pengembangan metode 4D Thiaganrajan modifikasi 3D Ibrahim. Penelitian ini bertujuan untuk mengetahui efektivias media pembelajaran geometri molekul berbasis Mobile Virtual Reality (MVR) dalam meningkatkan visuospasial skills. Efektivitas media pembelajaran geometri molekul berbasis MVR dinyatakan berdasarkan interpretasi skor N-Gain. Hasil penelitian menunjukkan peningkatan persentase jawaban benar pada postest sebesar 32,15% dengan tingkat signifikansi berkisar antara 0,57-1 pada kategori sedang sampai dengan tinggi. Dalam kaitan ini, pemanfaatan media pembelajaran geometri molekul berbasis MVR dikatakan efektif karena dapat meningkatkan visuospasial skills peserta didik. Artinya, media pembelajaran geometri molekul berbasis MVR dapat membantu peserta didik untuk merepresentasikan submateri geometri molekul secara komprehensif.
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Rahman, Iffa Hanifah, Yaya S. Kusumah, and Aan Hasanah. "Penggunaan 3D Grapher Dalam Pembelajaran Matematika Geometri." Jurnal Perspektif 6, no. 1 (2022): 52. http://dx.doi.org/10.15575/jp.v6i1.165.

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Astuti, Astuti, Zulfah Zulfah, Nurhaliza, et al. "Eksplorasi Etnomatematika Pada Tradisi Manggelek Tobu di Kuok." Journal of Education Research 4, no. 1 (2023): 125–33. http://dx.doi.org/10.37985/jer.v4i1.134.

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Tradisi Manggelek Tobu (Menggiling Tebu) salah satu tradisi turun temurun yang ada di Kuok, Kabupaten Kampar. Penelitian ini bertujuan mengeksplor Tradisi Manggelek Tobu (Menggiling Tebu) di Kuok, sebagai titik awal pembelajaran dalam materi Geometri. Selain itu, metode penelitian yang digunakan adalah deskriptif kualitatif dengan pendekatan etnografi. Hasilnya adalah eksplorasi etnomatematika kegiatan Manggelek Tobu (Menggiling Tebu), yang mewakili konsep matematika seperti geometri 2D, geometri 3D, transformasi geometri, dan sudut. Siswa dapat mengidentifikasi dan menggambarkan bentuk matematika dari kegiatan Manggelek Tobu (Menggiling Tebu), yaitu geometri dimensi dua (persegi, segitiga, lingkaran, persegi panjang, dan setengah lingkaran), geometri dimensi tiga (tabung) dan sudut (sudut lancip, sudut siku-siku, dan sudut tumpul).
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Alkamal, Putra, and Sofyan Triana. "Implementasi Building Information Modelling pada Proyek Pembangunan Jalan Alternatif Lingkar Cipanas Kabupaten Garut." Berkala Forum Studi Transportasi antar Perguruan Tinggi 2, no. 2 (2024): 271–81. http://dx.doi.org/10.19184/berkalafstpt.v2i2.991.

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The Industrial Revolution 4.0 requires actors in the construction sector to utilize technology in infrastructure planning and development, such as the application of Building Information Modeling (BIM). BIM is managing and realizing construction data defined in BIM-based software. The analysis was carried out using BIM implementation of the geometry design for the Alternative Cipanas Ring Road, which has a length of 2 km, using Autodesk Civil 3D. The design result is four horizontal and six vertical curves, which were then used to make a three-dimensional road model. The use of Civil 3D contributes to quickening the analysis process and the exactness of the road geometry design results. The 3D model contains spatial information that can be used for further research using other BIM-based software. For example, these three-dimensional models can be imported into Autodesk Infraworks for bridge design. ABSTRAK Revolusi Industri 4.0 menuntut pelaku dibidang konstruksi untuk memanfaatkan teknologi pada perencanaan maupun pembangunan infrastruktur, seperti penerapan Building Information Modelling (BIM). BIM merupakan proses pengelolaan dan pewujudan dari data konstruksi yang didefinisikan pada suatu software berbasis BIM. Analisis yang dilakukan berupa implementasi BIM terhadap kegiatan perancangan geometri Jalan Alternatif Lingkar Cipanas sepanjang 2 Km menggunakan software Autodesk Civil 3D yang mengacu pada AASHTO 2011. Hasil desain diperoleh 6 lengkung horizontal dan 4 lengkung vertikal yang kemudian digunakan dalam pembuatan model tiga dimensi. Penggunaan Civil 3D membantu dalam kecepatan proses analisis serta keakuratan hasil desain geometri jalan. Model tiga dimensi memuat informasi spasial yang dapat dipergunakan untuk penelitian lebih lanjut menggunakan software berbasis BIM lainnya. Sebagai contoh, gambar tiga dimensi tersebut dapat diimpor kepada software Autodesk Infraworks apabila akan dilanjutkan dengan perencanaan jembatan.
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Abdillah, Hamid, Muhammad Munadi, and Nur Wachid Supriyadi. "COMPARISON OF 3D PRINTER AND WOOD CASTING PATTERN." Jurnal Elektro dan Mesin Terapan 6, no. 2 (2020): 70–80. http://dx.doi.org/10.35143/elementer.v6i2.3636.

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Pola cor merupakan replika dari benda yang digunakan sebagai acuan dalam proses pengecoran. Pembuatan pola cor masih didominasi dengan proses konvensional menggunakan kayu. Penelitian ini bertujuan untuk melakukan perbandingan antara pola cor konvensional kayu dengan pola cor yang dibuat menggunakan 3D printer. Penelitian ini dilakukan dengan melakukan pembuatan produk pola cor menggunakan metode konvensional dan 3D printer. Pembuatan pola konvensional menggunakan proses pengerjaan kayu sedangakan pola 3D printer menggunkan 3D printer sistem stereolithography (SLA). Produk pola cor konvensional dan 3D printer kemudian dibandingkan dari sisi kualitas geometri dan presisian ukuran. Hasil yang diperoleh adalah pola cor hasil pembuatan dengan 3D printer memiliki keunggulan dalam kepresisian ukuran yang lebih baik dibandingkan dengan pola konvensional. Sedangkan untuk kualitas geometri dan kekasaran permukaan kedua metode sama-sama memiliki hasil yang baik. hal ini membuka peluang untuk melakukan tinjauan lebih mendalam mengenai aplikasi 3D printer dalam sektor pengecoran logam
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Dissertations / Theses on the topic "3D geometri"

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Bergström, Tove. "The Importance of Flow for Secondary School Students’ Experiences in Geometry." Thesis, Linnéuniversitetet, Institutionen för matematik (MA), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-107156.

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This article is intended to contribute to greater knowledge regarding the importance offlow and the time used to perform an activity, with a focus on students’ mathematicalexperiences of 3D bodies. Thirty-one 9th-grade students took part in the study. Flow andvariation theory was used in the analysis of lesson observations, submission tasks, audiorecordings, logbooks, tests and nationwide tests. The results indicate that the selectedmathematics problem is characterised by seven components, which serve as the basis foridentifying intended critical aspects; a variation is evident in the balance between skillsand challenges that is characterised by the critical aspects that the students discern; avariation is evident in the experience of flow that is dependent upon the students’approach to their work on various activities; the students’ mathematical experiences arebased, both short- and long-term, on discerned critical aspects and on the time spent onthe activity that generates flow. Theoretical contributions as well as implications forteaching are presented at the end of the article.
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Vala, Jan. "Parametrický geometrický 3D kreslicí nástroj." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2014. http://www.nusl.cz/ntk/nusl-236087.

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Purpose of this thesis is to introduce reader to 3D parametric construction tools and their application with dynamic geometry. Project introduces basic concepts of parametric construction in computer geometry, summary of the state of the art, description of selected parametric geometry software, evaluation of its features and design of 3D parametric geometry library for use in computer graphics followed by implementation of said library and user interface application for evaluation.
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Borsoi, Caroline. "GeoGebra 3D no Ensino Médio : uma possibilidade para a aprendizagem da geometria espacial." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2016. http://hdl.handle.net/10183/148179.

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No ensino da Geometria Espacial é notável a dificuldade de nossos alunos em atividades que necessitam a mobilização de habilidades espaciais e nas quais é exigida a compreensão da representação bidimensional de objetos tridimensionais. Este estudo apresenta uma sequência didática que explora conceitos da Geometria Espacial através da utilização do software de geometria dinâmica GeoGebra. A proposta tem como objetivo provocar o desenvolvimento do pensamento geométrico espacial, nisso tirando-se proveito dos recursos de representação que se tem no software, especialmente aquele que diz respeito a interação dinâmica entre as representações do objeto tridimensional e diferentes planos de corte. São dez atividades, em crescente nível de dificuldade e envolvendo diferentes conceitos da Geometria Espacial. A análise da produção dos alunos é feita a luz das teorias de Van Hiele, Duval e Gutiérrez. A metodologia de pesquisa é inspirada na Engenharia Didática e foi possível sinalizar, a partir do confronto entre análises a priori e a posteriori, o progresso dos alunos quanto ao desenvolvimento de habilidades para visualização espacial.<br>In teaching the Spatial Geometry is remarkable the students difficulty in activities that require spatial skills and the understand of the two-dimensional representation of three-dimensional objects. This study presents a didactic sequence that explores concepts of Spatial Geometry using the software GeoGebra. The aim is to provoke the development of spatial geometric thinking, taking advantage of dynamic representations available in the software, especially the one concerning the interaction between the representations of three-dimensional object and intersecting planes. Ten activities in increasing level of difficulty and involving different concepts of spatial geometry were applied in the experiment. The analysis of the students’ production is based on Van Hiele, Duval and Gutiérrez theories and the research methodology takes as reference the Didactic Engineering. From confrontation between the priori and posteriori analysis, it was possible to observe the progress of students and especially the development of skills related to spatial visualization.
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Cozzolino, Adriana Maria. "O ensino da perspectiva usando o Cabri 3D: uma experiência com alunos do ensino médio." Pontifícia Universidade Católica de São Paulo, 2008. https://tede2.pucsp.br/handle/handle/11359.

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Made available in DSpace on 2016-04-27T16:58:49Z (GMT). No. of bitstreams: 1 ADRIANA MARIA COZZOLINO.pdf: 4568146 bytes, checksum: 0e32b55df54f9d137d6bfb0530e21ca9 (MD5) Previous issue date: 2008-12-19<br>Secretaria da Educação do Estado de São Paulo<br>This work is inserted in the context of teaching-learning Spatial Geometry in Basic Education, in particular, teaching Perspective by High School students and the relations between three-dimensional objects and their representations in the plain. We have used the dynamic geometry environment, CABRI 3D, considering the limitations existing of the paper and pencil environment. The difficulties of students in relation to three-dimensional representations into two-dimensional environment, were researched by Parzysz (1988, 1989, 1991, 2001), and our work was basis in his theoretical Geometry presuppositions. Our aim is verify how the education of the perspective can help students to change or to articulate different points of view of three-dimensional geometric object. Besides, to notice how CABRI 3D can contribute with them, so that they will articulate the real image and its representations. Design Experiments was adopted as the methodology of this work. It was developed by Steffe and Thompson (2000), Doerr and Wood (2000), Cobb et al (2003) and Collins et al (2004). High School students of a private school of the state of São Paulo participated in this work. Their productions showed that the changes between the paper and pencil (static) environment and the dynamic geometry environment CABRI 3D, contributed so that the students mobilize and articulate knowledge between the image and its representations. Finally, we pretend that this work was used as a tool to enlarge the visualization capacity and to sensitize the look of the students for the representations perspective of three-dimensional objects<br>A presente pesquisa está inserida no contexto do ensino-aprendizagem da Geometria Espacial na Educação Básica, referindo-se, em particular, ao ensino da Perspectiva para alunos do Ensino Médio e as relações entre os objetos tridimensionais e suas representações no plano. Optamos por utilizar o ambiente de geometria dinâmica CABRI 3D, considerando as limitações no ambiente convencional papel e lápis. As dificuldades dos alunos com relação à representação plana de objetos espaciais são tratados por Parzysz (1988, 1989, 1991, 2001) e estes estudos serviram como referencial teórico para a nossa pesquisa. Procuramos verificar em que medida o ensino da perspectiva pode auxiliar o aluno a mudar ou articular diferentes pontos de vista sobre um objeto geométrico tridimensional e de que forma o CABRI 3D pode contribuir para que articulem a imagem real e suas representações. A metodologia utilizada foi o Design Experiments, fundamentada nos autores Steffe e Thompson (2000), Doerr e Wood (2000), Cobb et al (2003) e Collins et al (2004). Participaram do estudo alunos do Ensino Médio de uma escola particular da cidade de São Paulo. As produções dos alunos mostraram que as variações entre o ambiente papel e lápis (estático) e ambiente de geometria dinâmica CABRI 3D, contribuíram para que eles mobilizassem seus conhecimentos e articulassem entre a imagem e suas representações. Este trabalho foi utilizado como uma ferramenta para ampliar a capacidade de visualização e sensibilizar o olhar dos alunos para as representações em perspectiva, de objetos espaciais
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Qasem, Safwan. "Conception et réalisation d'une interface 3D pour Cabri-géomètre." Université Joseph Fourier (Grenoble), 1997. http://www.theses.fr/1997GRE10299.

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La geometrie dans l'espace est souvent percue par un apprenant et quelquefois par son enseignant comme plus difficile d'acces que la geometrie plane. Une raison forte en est probablement que la distance entre une figure geometrique et sa representation dessinee est plus grande quand il s'agit de geometrie dans l'espace, plutot que de geometrie plane. Dans cette these, on s'interesse aux principes de conception et de realisation d'un environnement informatique d'apprentissage pour la geometrie dans l'espace, concu comme un micromonde en manipulation directe dans la philosophie de cabri-geometre. Ce travail a donne lieu a la realisation de cabri-3d, un prototype de micromonde d'apprentissage de la geometrie dans l'espace. Apres une presentation du concept de micromonde d'apprentissage, nous mettons en evidence l'importance du type d'interaction entre l'utilisateur et l'environnement dans le processus de construction des connaissances chez un apprenant. Nous presentons par la suite le concept de manipulation directe et d'engagement direct et leur role dans l'exploration du domaine de connaissances. La mise en uvre des principes de manipulation directe et d'engagement direct dans un micromonde d'apprentissage, embarque des connaissances liees autant au domaine (la geometrie 3d) qu'au fonctionnement de l'utilisateur, eleve et/ou enseignant. Apres une analyse des principales questions regissant les rapports entre representation interne (idealement proche de la figure 3d) et representation a l'interface, on propose quelques solutions pour la realisation d'un environnement informatique d'apprentissage humain de geometrie dans l'espace. Nous montrons que l'exploitation des possibilites d'animation et de graphisme, offertes par l'environnement informatique, peut favoriser et faciliter l'utilisation du dessin pour l'exploration de figures geometriques dans un environnement d'apprentissage. Les propositions faites sont fortement marquees par les concepts de manipulation directe et d'engagement direct. Enfin, nous decrivons la mise en uvre du prototype de cabri-3d fonde sur la notion de modele d'agents autonomes et reactifs. Nous presentons la particularisation de ces modeles, dedies aux systemes interactifs, pour la representation et la manipulation des objets et des figures de geometrie dans l'espace.
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Ritter, Andréa Maria. "A Visualização no ensino de Geometria espacial : possibilidades com o software calques 3D." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2011. http://hdl.handle.net/10183/32385.

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Este trabalho apresenta uma proposta para o ensino de Geometria Espacial com a utilização do software de Geometria dinâmica Calques 3D. A proposta tem como foco o desenvolvimento de habilidades para visualizar objetos 3D a partir de suas representações no plano. Faz parte da proposta uma sequência didática com atividades em crescente exigência quanto a visualização: no Calques 3D, inicialmente, os alunos construíram sólidos a partir de informações dadas através de desenhos em perspectiva, depois através de planificações e por último usando apenas a descrição dos sólidos. Como metodologia de pesquisa foi utilizada a Engenharia Didática e através das análises a posteriori foi possível observar o progresso dos alunos quanto ao desenvolvimento de habilidades para visualização espacial.<br>This work presents a proposal for the teaching of spatial geometry with the use of dynamic geometry software Calques 3D. The objective of this proposal is to develop the visualization of spatial objects and the understanding of their bidimensional representations. It was designed a sequence of activities that called for the construction of various geometric solids in the software Calques 3D using the designs of perspective representation, the designs of planification and the written description of the characteristics of the solids. The research methodology was the Didactical Engineering and the posteriori analysis showed the students´s progress related to visualization abilities.
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Mrkvička, Daniel. "Rekonstrukce 3D objektů z více pohledů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-399560.

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This thesis deals with the reconstruction of the scene using two or more images. It describes the whole reconstruction process consisting of detecting points in images, finding the appropriate geometry between images and resulting projection of these points into the space of scene. The thesis also includes a description of the application, which demonstrates the described methods.
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Tan, Ping. "3D modeling from photometry and geometry /." View abstract or full-text, 2007. http://library.ust.hk/cgi/db/thesis.pl?CSED%202007%20TAN.

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Sayed, Zahra. "3D Mapping of Islamic Geometric Motifs." Thesis, University of Bradford, 2017. http://hdl.handle.net/10454/17145.

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In this thesis a novel approach in generating 3D IGP is applied using shape grammar, an effective pattern generation method. The particular emphasis here is to generate the motifs (repeat unit) in 3D using parameterization, which can then be manipulated within 3D space to construct architectural structures. Three unique distinctive shape grammar algorithms were developed in 3D; Parameterized Shape Grammar (PSG), Auto-Parameterized Shape Grammar (APSG) and Volumetric Shell Shape Grammar (VSSG). Firstly, the PSG generates the motifs in 3D. It allows one to use a single changeable regular 3D polygon, and forms a motif by given grammar rules including, Euclidean transformations and Boolean operations. Next, APSG was used to construct the architectural structures that manipulates the motif by automating the grammar rules. The APSG forms a wall, a column, a self-similarity star and a dome, the main features of Islamic architecture. However, applying Euclidean transformations to create non-Euclidean surfaces resulted in gaps and or overlaps which does not form a perfect tessellation. This is improved upon by the VSSM, which integrates two key methods, shell mapping and coherent point drift, to map an aesthetically accurate 3D IGM on a given surface. This work has successfully presented methods for creating complex intricate 3D Islamic Geometric Motifs (IGM), and provided an efficient mapping technique to form visually appealing decorated structures.<br>Partially funded by the Centre of Visual Computing (CVC)
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Forest, Collado Josep. "New Methods for Triangulation-based Shape Acquisition using Laser Scanners." Doctoral thesis, Universitat de Girona, 2004. http://hdl.handle.net/10803/7730.

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Tradicionalment, la reproducció del mon real se'ns ha mostrat a traves d'imatges planes. Aquestes imatges se solien materialitzar mitjançant pintures sobre tela o be amb dibuixos. Avui, per sort, encara podem veure pintures fetes a ma, tot i que la majoria d'imatges s'adquireixen mitjançant càmeres, i es mostren directament a una audiència, com en el cinema, la televisió o exposicions de fotografies, o be son processades per un sistema computeritzat per tal d'obtenir un resultat en particular. Aquests processaments s'apliquen en camps com en el control de qualitat industrial o be en la recerca mes puntera en intel·ligència artificial. Aplicant algorismes de processament de nivell mitja es poden obtenir imatges 3D a partir d'imatges 2D, utilitzant tècniques ben conegudes anomenades Shape From X, on X es el mètode per obtenir la tercera dimensió, i varia en funció de la tècnica que s'utilitza a tal nalitat. Tot i que l'evolució cap a la càmera 3D va començar en els 90, cal que les tècniques per obtenir les formes tridimensionals siguin mes i mes acurades. Les aplicacions dels escàners 3D han augmentat considerablement en els darrers anys, especialment en camps com el lleure, diagnosi/cirurgia assistida, robòtica, etc. Una de les tècniques mes utilitzades per obtenir informació 3D d'una escena, es la triangulació, i mes concretament, la utilització d'escàners laser tridimensionals. Des de la seva aparició formal en publicacions científiques al 1971 [SS71], hi ha hagut contribucions per solucionar problemes inherents com ara la disminució d'oclusions, millora de la precisió, velocitat d'adquisició, descripció de la forma, etc. Tots i cadascun dels mètodes per obtenir punts 3D d'una escena te associat un procés de calibració, i aquest procés juga un paper decisiu en el rendiment d'un dispositiu d'adquisició tridimensional. La nalitat d'aquesta tesi es la d'abordar el problema de l'adquisició de forma 3D, des d'un punt de vista total, reportant un estat de l'art sobre escàners laser basats en triangulació, provant el funcionament i rendiment de diferents sistemes, i fent aportacions per millorar la precisió en la detecció del feix laser, especialment en condicions adverses, i solucionant el problema de la calibració a partir de mètodes geomètrics projectius.<br>Traditionally, the reproduction of the real world has been shown to us by means of at images. These images used to be materialised by means of paint on canvas, drawings or the like. Today, we still see hand made pictures, by fortune, although most of the images are acquired by cameras and they are either directly shown to an audience, like in the cinema, television or photographs, or they are processed by a computer system in order to obtain a particular result, like in industrial quality assurance or bleeding edge artificial intelligence research. Applying mid-level processing algorithms, 3D images can be obtained from 2D ones, using well known techniques called Shape From X, where X is the method for obtaining the 3rd dimension. While the evolution to the 3D camera begun in the 90s, the techniques for obtaining the most accurate 3D shape need to be continuously improving. The application of 3D scanners has spread signi cantly in the recent years, specially in elds like entertainment, assisted diagnosis/ surgery, robotics, etc. One of the most used techniques to obtain 3D information from a scene is triangulation, and more concretely, triangulationbased laser scanners. Since their formal appearance in scienti c publications, in 1971 [SS71], there have been contributions for solving inherent problems like occlusion avoidance, accuracy improvement, acquisition speed, shape description, etc. All of the methods for obtaining 3D points of a scene is accompained with a calibration procedure, and this procedure plays a decisive role in the performance of the acquisition device. The goal of this thesis is to provide a holistic approach to the problem of shape acquisition, giving a wide survey of triangulation laser scanners, testing the performance of di erent systems, and to give contributions for both improving acquisition accuracy under adverse conditions and solving the calibration problem. In addition, the calibration approach is based on previous works that used projective geometry to this end.
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Books on the topic "3D geometri"

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Vittal, P. R. Analytical geometry: 2D and 3D. Dorling Kindersley (India), 2013.

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1939-, Mortenson Michael E., ed. Geometric transformations for 3D modeling. 2nd ed. Industrial Press, 2007.

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Bashkatov, Alexander. Modeling in OpenSCAD: examples. INFRA-M Academic Publishing LLC., 2019. http://dx.doi.org/10.12737/959073.

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The tutorial is an introductory course to the study of the basics of geometric modeling for 3D printing using the programming language OpenSCAD and is built on the basis of descriptions of instructions for creating primitives, determining their properties, carrying out transformations and other service operations. It contains a large number of examples with detailed comments and description of the performed actions, which allows you to get basic skills in creating three-dimensional and flat models, exporting and importing graphical data.&#x0D; Meets the requirements of the Federal state educational standards of higher education of the last generation.&#x0D; It can be useful for computer science teachers, students, students and anyone who is interested in three-dimensional modeling and preparation of products for 3D printing.
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Resources, Didax Educational, ed. Build up to bubbles: Geometry made interesting with 3d geoshapes. Didax Educational Resources, 1997.

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Bertolo, David. Interactions on Digital Tablets in the Context of 3D Geometry Learning. John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781119330288.

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Jayaprada, Ms M., and M. Saiprasad BSc (maths) BE (Civil) MIE (India). Line 3D and Plane: 3D Coordinate Geometry. Independently Published, 2018.

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Griffiths, Dawn, and Lindsey Fallow. Head First 3D Geometry. O'Reilly Media, Incorporated, 2010.

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Jayaprada, M., and M. Saiprasad B Sc (math) B E (civil) MIE (India). Plane: 3D Coordinate Geometry. Independently Published, 2018.

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M. Saiprasad B.Sc (maths) B.E (civil) MIE (India) and sai prasad. Plane: Coordinate Geometry 3D. Independently Published, 2018.

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Jayaprada, M. Plane: Coordinate Geometry 3D. Independently Published, 2018.

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Book chapters on the topic "3D geometri"

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Glaeser, Georg, and Hans-Peter Schröcker. "3D Graphics I." In Handbook of Geometric Programming Using Open Geometry GL. Springer New York, 2002. http://dx.doi.org/10.1007/978-0-387-22448-0_3.

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Glaeser, Georg, and Hans-Peter Schröcker. "3D Graphics II." In Handbook of Geometric Programming Using Open Geometry GL. Springer New York, 2002. http://dx.doi.org/10.1007/978-0-387-22448-0_4.

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Peters, Jörg, Meera Sitharam, Yong Zhou, and JianHua Fan. "Elimination in generically rigid 3D geometric constraint systems." In Algebraic Geometry and Geometric Modeling. Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/978-3-540-33275-6_13.

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Süße, Herbert, and Erik Rodner. "3D-Geometrie." In Bildverarbeitung und Objekterkennung. Springer Fachmedien Wiesbaden, 2014. http://dx.doi.org/10.1007/978-3-658-08521-6_13.

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Glahn, Stephan Baudach, and Lutz Lämmer. "Geometrie 3D." In AutoCAD — Ein Leitfaden für das Selbststudium. Vieweg+Teubner Verlag, 1997. http://dx.doi.org/10.1007/978-3-322-97622-2_4.

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Farin, Gerald, and Dianne Hansford. "3D Geometry." In Practical Linear Algebra, 4th ed. Chapman and Hall/CRC, 2021. http://dx.doi.org/10.1201/9781003051213-8.

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Farin, Gerald, and Dianne Hansford. "3D-Geometrie." In Lineare Algebra: Ein geometrischer Zugang. Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-642-55841-2_10.

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Christov, Ljubomir, and Markus Gorzelanczyk. "Geometrie: Darstellungselemente." In 3D-Graphik mit HOOPS. Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-78870-3_5.

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Szalai, Viktor, Aurel Stratan, Adrian Ciutina, Andreea Diana Clepe, and Anna Ene. "Procedure for Generation of Finite Element Models of Steel Members from 3D Scanned Data." In Lecture Notes in Civil Engineering. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-57800-7_14.

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AbstractWith rapid development of 3D scanning technologies and implementation of digital twinning and reverse engineering in the construction industry, it became possible for finite element simulations to facilitate analysis of measured geometries when it is needed. A new approach to generate 3D solid models using advanced techniques in the field of 3D scanning is introduced in this paper. Constructing three-dimensional (3D) finite element (FE) models with measured geometry of structures or structural elements can be technically difficult. To date, there is no robust automated approach to translate the data obtained from 3D scans directly into a model for FE analysis. This paper provides an overview on current applications of 3D scanning, and a case study that addresses the issue of processing three-dimensional point clouds that are generated from 3D scans of steel links. Another objective of this paper is to present a simple and practical procedure to convert point clouds into solid models that can be further used in FE analysis. Five distinct 3D scanning technologies were selected for the measurement of replaceable steel links to generate solid models based on the measured geometry. For the specific application addressed in this paper, the blue laser scanner with measuring arm has shown the most satisfactory results in terms of efficiency.
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Ivekovic, Spela, Andrea Fusiello, and Emanuele Trucco. "Fundamentals of Multiple-View Geometry." In 3D Videocommunication. John Wiley & Sons, Ltd, 2006. http://dx.doi.org/10.1002/0470022736.ch6.

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Conference papers on the topic "3D geometri"

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Daling, Stepanus, Mohamad Rif'at, Adriana Nada Beta, Hodiyanto Hodiyanto, and Rahman Haryadi. "Analisis Kebutuhan Pengembangan Media Pembelajaran Geometri Bermuatan Pendidikan Karakter Menggunakan Macromedia Flash 8 Berbasis Android." In Seminar Nasional Penerapan Ilmu Pengetahuan dan Teknologi : kampus merdeka meningkatkan kecerdasan sumberdaya manusia melalui interdispliner ilmu pengetahuan dan teknologi : Pontianak, 24 Agustus 2021. Untan Press, 2021. http://dx.doi.org/10.26418/pipt.2021.3.

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Penelitian ini bertujuan untuk mengetahui kebutuhan media pembelajaran yang akan dikembangkan menggunakan aplikasi Macromedia Flash 8 pada pokok bahasan Geometri Dimensi Tiga. Penelitian ini merupakan penelitian awal yang termasuk di dalam tahap Pendefinisian (Define) dalam prosedur R &amp; D model 4D (four-D) yang telah dimodifikasi menjadi 3D meliputi tiga tahapan yaitu: pendefinisian (define), perancangan (design) dan pengembangan (develop). Penelitian ini hanya terbatas pada tahap Define. Teknik pengumpulan data dilakukan dengan cara observasi dan wawancara terhadap Guru dan Peserta Didik kelas X SMA Wisuda Pontianak. Hasil penelitian ini menunjukkan bahwa dalam pembelajaran geometri dibutuhkan media pembelajaran berbentuk Macromedia Flash 8 berbasis android yang bermuatan nilai-nilai pendidikan karakter pada peserta didik.
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Nguyen, Hung, Rolf Clackdoyle, and Laurent Desbat. "Automatic geometric calibration in 3D parallel geometry." In Physics of Medical Imaging, edited by Hilde Bosmans and Guang-Hong Chen. SPIE, 2020. http://dx.doi.org/10.1117/12.2549568.

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Benger, Werner. "Illustrating Geometric Algebra and Differential Geometry in 5D Color Space." In WSCG 2023 – 31. International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision. University of West Bohemia, Czech Republic, 2023. http://dx.doi.org/10.24132/csrn.3301.1.

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Geometric Algebra (GA) is popular for its immediate geometric interpretations of algebraic objects and operations. It is based on Clifford Algebra on vector spaces and extends linear algebra of vectors by operations such as an invertible product, i.e. divisions by vectors. This formalism allows for a complete algebra on vectors same as for scalar or complex numbers. It is particularly suitable for rotations in arbitrary dimensions. In Euclidean 3D space quaternions are known to be numerically superior to rotation matrices and already widely used in computer graphics. However, their meaning beyond its numerical formalism often remains mysterious. GA allows for an intuitive interpretation in terms of planes of rotations and extends this concept to arbitrary dimensions by embedding vectors into a higher dimensional, but still intuitively graspable space of multi-vectors. However, out intuition of more than three spatial dimensions is deficient. The space of colors forms a vector space as well, though one of non-spatial nature, but spun by the primary colors red, green, blue. The GA formalism can be applied here as well, amalgamating surprisingly with the notion of vectors and co-vectors known from differential geometry: tangential vectors on a manifold correspond to additive colors red/green/blue, whereas co-vectors from the co-tangential space correspond to subtractive primary colors magenta, yellow, cyan. GA in turn considers vectors, bi-vectors and anti-vectors as part of its generalized multi-vector zoo of algebraic objects. In 3D space vectors, anti-vectors, bi-vectors and covectors are all three-dimensional objects that can be identified with each other, so their distinction is concealed. Confusions arise from notions such as “normal vectors” vs. “axial vectors”. Higher dimensional spaces exhibit the differences more clearly. Using colors instead of spatial dimensions we can expand our intuition by considering "transparency" as an independent, four-dimensional property of a color vector. We can thereby explore 4D GA alternatively to spacetime in special/general relativity. However, even in 4D possibly confusing ambiguities remain between vectors, co-vectors, bi-vectors and bi-co-vectors: bi-vectors and bi-co-vectors - both six-dimensional objects - are visually equivalent. They become unequivocal only in five or higher dimensions. Envisioning five-dimensional geometry is even more challenging to the human mind, but in color space we can add another property, "texture" to constitute a five-dimensional vector space. The properties of a bi-vector and a bi-co-vector becomes evident there: We can still study all possible combinations of colors/transparency/texture visually. This higher-dimensional yet intuitive approach demonstrates the need to distinguish among different kinds of vectors before identifying them in special situations, which also clarifies the meanings of algebraic objects in 3D Euclidean space and allows for better formulations of algorithms in 3D.
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Deng, Jingyang, Xingjian Li, Haoyi Xiong, Xiaoguang Hu, and Jinwen Ma. "Geometry-Guided Conditional Adaptation for Surrogate Models of Large-Scale 3D PDEs on Arbitrary Geometries." In Thirty-Third International Joint Conference on Artificial Intelligence {IJCAI-24}. International Joint Conferences on Artificial Intelligence Organization, 2024. http://dx.doi.org/10.24963/ijcai.2024/640.

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Deep learning surrogate models aim to accelerate the solving of partial differential equations (PDEs) and have achieved certain promising results. Although several main-stream models through neural operator learning have been applied to delve into PDEs on varying geometries, they were designed to map the complex geometry to a latent uniform grid, which is still challenging to learn by the networks with general architectures. In this work, we rethink the critical factors of PDE solutions and propose a novel model-agnostic framework, called 3D Geometry-Guided Conditional adaptation (3D-GeoCA), for solving PDEs on arbitrary 3D geometries. Starting with a 3D point cloud geometry encoder, 3D-GeoCA can extract the essential and robust representations of any kind of geometric shapes, which conditionally guides the adaptation of hidden features in the surrogate model. We conduct experiments on two public computational fluid dynamics datasets, the Shape-Net Car and Ahmed-Body dataset, using several surrogate models as the backbones with various point cloud geometry encoders to simulate corresponding large-scale Reynolds Average Navier-Stokes equations. Equipped with 3D-GeoCA, these backbone models can reduce the L-2 error by a large margin. Moreover, this 3D-GeoCA is model-agnostic so that it can be applied to any surrogate model.
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Cleeman, Jeremy, Alex Bogut, Brijesh Mangrolia, et al. "Multiplexed 3D Printing of Thermoplastics." In ASME 2022 17th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/msec2022-80882.

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Abstract Extrusion-based additive manufacturing of large thermoplastic structures has significant emerging applications. The most popular approach to economically achieving such 3D printing is to increase the polymer flow rate along with the layer height and line width. However, this creates a fundamental compromise between the achievable geometric fidelity and the printing throughput. We explore a Multiplexed Fused Filament Fabrication (MF3) approach in which an array of FFF extruders concurrently prints different sections of the same part using small layer heights and line widths. Mounting all the extruders on one cartesian gantry without individual control of each extruder’s motion enables simple machine construction and control. 3D geometric complexity is realized by rastering the extruder array across the smallest rectangle bounding each 2D layer and by spatially specific deposition via “dynamic” filament retraction/ advancement in the extruders. The dynamic moniker is because, unlike conventional single extruder FFF, the extruder array does not stop during dynamic filament retraction/advancement. This achieves higher throughput at greater resolution without material-intensive overprinting and machining, geometrically-limited throughput of the dual-extruder strategy, cost and geometric limitations of robot-based multiplexing, and the complexity and geometric limitations of previous gantry-based multiplexing efforts. Our experiments reveal the parameters that affect dynamic retraction and advancement, and show a previously unknown coupling between the efficacy of dynamic filament retraction and dynamic filament advancement. We create part-scale thermal simulations to model temperature evolution in the part under the action of multiple concurrently acting extruders, revealing a unique temperature history that can affect bonding and mechanical properties. We show that MF3 can enable resilience to extruder failure by allowing other extruders to take over part fabrication while the damaged extruder is being replaced. We also demonstrate that MF3 enables flexibility in part scale and geometry, i.e., the ability to make multiple smaller parts of similar or distinct geometries in one production run and lesser number of larger parts of similar or distinct geometries in the next production run. Finally, we quantitatively analyze the future potential of MF3 to achieve similar or greater throughput than state-of-the-art Big Area Additive Manufacturing while significantly enhancing the geometric resolution.
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Dai, Qinghua, Baoguang Yang, and Jieqing Feng. "Reconstructable geometry shadow maps." In I3D08: Symposium on Interactive 3D Graphics and Games. ACM, 2008. http://dx.doi.org/10.1145/1342250.1357016.

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Ruhkamp, Patrick, Daoyi Gao, Hanzhi Chen, Nassir Navab, and Beniamin Busam. "Attention meets Geometry: Geometry Guided Spatial-Temporal Attention for Consistent Self-Supervised Monocular Depth Estimation." In 2021 International Conference on 3D Vision (3DV). IEEE, 2021. http://dx.doi.org/10.1109/3dv53792.2021.00092.

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Champliaud, Henri, Zhengkun Feng, David Provencher, Danick Tousignant, and Javad Gholipour. "Piecewise Fifth Order Spline Interpolation for Line Heating Forming Process." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-67296.

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A fifth order piecewise spline interpolation model has been developed for computing the evolving geometry of a plate deformed by line heating thermal gradients. 3D formulations are presented and applied to continuously derivable geometries to demonstrate the capability of the methodology. Then the developed formulation is used to form gradually, with a sequence of heating lines, a 3D shape from an initially flat plate. The geometric results obtained from finite element simulations with three heating lines are used to illustrate where heating lines should be applied on a flat plate to achieve the intended geometry of a workpiece. Furthermore, it is shown that applying the developed piecewise fifth order spline interpolation model to the same flat plate produces results very close to the ones obtained from the thermal structural FE simulations.
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Yamada, Rui, and Mitsuharu Ohki. "Editing 3D objects without 3D geometry." In ACM SIGGRAPH 98 Conference abstracts and applications. ACM Press, 1998. http://dx.doi.org/10.1145/280953.282236.

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Tokuyoshi, Yusuke, and Anton S. Kaplanyan. "Improved geometric specular antialiasing." In I3D '19: Symposium on Interactive 3D Graphics and Games. ACM, 2019. http://dx.doi.org/10.1145/3306131.3317026.

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Reports on the topic "3D geometri"

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Spencer, Joshua Bradly, Joel A. Kulesza, and Avneet Sood. 3D Geometry Visualization Capability for MCNP. Office of Scientific and Technical Information (OSTI), 2017. http://dx.doi.org/10.2172/1363738.

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Shashua, Amnon. Geometry and Photometry in 3D Visual Recognition. Defense Technical Information Center, 1992. http://dx.doi.org/10.21236/ada259443.

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Toutin, Th, R. Chénier, and Y. Carbonneau. 3D Geometric Modelling of IKONOS Geo Images. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2001. http://dx.doi.org/10.4095/219816.

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Mamp, Michael, and Alexis Quinney. Body Scans as Base Geometry for 3D Modeling and Printing. Iowa State University, Digital Repository, 2017. http://dx.doi.org/10.31274/itaa_proceedings-180814-1898.

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Michalski, A,, D. Andersson, R. Rossi, and C. Soriano. D7.1 DELIVERY OF GEOMETRY AND COMPUTATIONAL MODEL. Scipedia, 2021. http://dx.doi.org/10.23967/exaqute.2021.2.020.

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This document describes the industrial application, on which the developments of the project are implemented, and the CFD set-up. The developments are implemented over six analysis cases with increasing complexity starting from a 2D geometry with mean wind inflow to a 3D geometry with turbulent inflow and real-time shape optimization. The application represents the CAARC tall building model, which has served as a benchmark model for many studies since the 1970’s when it was first developed. Base moments (bending and torsional moments) of the building are extracted for validation by comparison of the results with the benchmark study. Page 3 of 19 Deliverable 7.1
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Toutin, Th. Error Tracking in IKONOS Geometric Processing Using a 3D Parametric Modelling. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2003. http://dx.doi.org/10.4095/219801.

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Parker, S. E., W. W. Lee, and R. A. Santoro. Gyrokinetic simulation of ion temperature gradient driven turbulence in 3D toroidal geometry. Office of Scientific and Technical Information (OSTI), 1993. http://dx.doi.org/10.2172/10160597.

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Parker, S. E., W. W. Lee, and R. A. Santoro. Gyrokinetic simulation of ion temperature gradient driven turbulence in 3D toroidal geometry. Office of Scientific and Technical Information (OSTI), 1993. http://dx.doi.org/10.2172/7368489.

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Badia, S., A. Martín, J. Principe, C. Soriano, and R. Rossi. D3.1 Report on nonlinear domain decomposition preconditioners and release of the solvers. Scipedia, 2021. http://dx.doi.org/10.23967/exaqute.2021.2.021.

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This document describes the industrial application, on which the developments of the project are implemented, and the CFD set-up. The developments are implemented over six analysis cases with increasing complexity starting from a 2D geometry with mean wind inflow to a 3D geometry with turbulent inflow and real-time shape optimization. The application represents the CAARC tall building model, which has served as a benchmark model for many studies since the 1970’s when it was first developed. Base moments (bending and torsional moments) of the building are extracted for validation by comparison of the results with the benchmark study. Page 3 of 19 Deliverable 7.1
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Fernandez, Ruben, Hernando Lugo, and Georfe Dulikravich. Aerodynamic Shape Multi-Objective Optimization for SAE Aero Design Competition Aircraft. Florida International University, 2021. http://dx.doi.org/10.25148/mmeurs.009778.

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The SAE Regular Class Aero Design Competition requires students to design a radio-controlled aircraft with limits to the aircraft power consumption, take-off distance, and wingspan, while maximizing the amount of payload it can carry. As a result, the aircraft should be designed subject to these simultaneous and contradicting objectives: 1) minimize the aerodynamic drag force, 2) minimize the aerodynamic pitching moment, and 3) maximize the aerodynamic lift force. In this study, we optimized the geometric design variables of a biplane configuration using 3D aerodynamic analysis using the ANSYS Fluent. Coefficients of lift, drag, and pitching moment were determined from the completed 3D CFD simulations. Extracted coefficients were used in modeFRONTIER multi-objective optimization software to find a set of non-dominated (Pareto-optimal or best trade-off) optimized 3D aircraft shapes from which the winner was selected based to the desired plane performance.
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