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唱歌給你聽dc新蟲 (小有名氣)
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[求助]
MS選原子怎么選 已有1人參與
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主管區(qū)長 (職業(yè)作家)
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Examples The following examples illustrate several common uses of the Find Patterns tool. To find bonded C-H pairs in butane 1.Open a new 3D Atomistic document and either sketch a carbon atom bonded to a hydrogen atom or copy and paste a C-H fragment from an existing document. Save the document as CHPair.xsd. 2.Import the file Examples\Documents\3D Model\butane.msi and save the project. 3.Select Edit | Find Patterns from the menu bar to display the Find Patterns dialog. Select CHPair.xsd as the Pattern document and choose Element Type as the Match property. 4.Ensure that butane.xsd is the active document and click on the Find button. A message will appear in the status bar reporting that 10 distinct matches have been found. These are indicated by wireframes around the atoms in question. Materials Studio will create 10 objects, each of which contains a carbon-hydrogen pair. By editing the element types in the pattern document, different pairs of atoms can be screened. The pairs can be entered into a new set using the Define New Set dialog. This is especially useful for providing input into analytical applications. A similar procedure can be used to find bond lengths, except that instead of identifying the pairs of atoms involved, the result of the Find operation is to create distance measurements. |

新蟲 (小有名氣)

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建議你仔細(xì)閱讀上述官方help文檔部分,其主要思路是,自定義pattern(樣品),然后在待查找結(jié)構(gòu)中,找到和自定義pattern相同的原子、鍵。 舉個(gè)例子,假如一個(gè)模型是水和乙醇的混合物,水分子、乙醇分子中都含有氧原子,假設(shè)我們只想找出水分子中的氧,就是利用find pattern來做:如上述help所述,新建一個(gè)xsd文檔,畫出一個(gè)H2O分子,把該xsd設(shè)為Pattern documents,選擇該xsd中H2O分子中的氧原子,置待查找結(jié)構(gòu)于當(dāng)前,點(diǎn)擊find,原模型所有水分子中的氧即被選中。 至于你要找三個(gè)-OH根的Si原子,操作步驟同上。 |

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