{"type":"doc","content":[{"type":"paragraph","content":[{"text":"This document covers the OpenBrIM Library Core Object ","type":"text"},{"text":"“FEMeshSurface”","type":"text","marks":[{"type":"em"}]},{"text":" and its purpose of use. The main goal of this Core Object is to create shell elements. The shell elements nodes' can be created with different restrictions and properties. A ","type":"text"},{"text":"T=“FEMeshSurface” ","type":"text","marks":[{"type":"em"}]},{"text":"object, named as ","type":"text"},{"text":"Example","type":"text","marks":[{"type":"em"}]},{"text":", is created to demonstrate these properties of the Core Object","type":"text"},{"text":". ","type":"text","marks":[{"type":"em"}]},{"text":"Mesh can be created in any plane, for this example is written on the X-Y plane.","type":"text"}]},{"type":"rule"},{"type":"paragraph","content":[{"text":"Surface, CX, CY, (CZ)","type":"text","marks":[{"type":"strong"}]}]},{"type":"paragraph","content":[{"text":"Firstly, only three parameters of this object are defined which are ","type":"text"},{"text":"Surface, CX, and CY. FEMeshSurface","type":"text","marks":[{"type":"em"}]},{"text":" creates mesh on the ","type":"text"},{"text":"Surface ","type":"text","marks":[{"type":"em"}]},{"text":"that is defined inside the object. ","type":"text"},{"text":"CX","type":"text","marks":[{"type":"em"}]},{"text":" and ","type":"text"},{"text":"CY","type":"text","marks":[{"type":"em"}]},{"text":" parameters set the mesh sizes along their respective directions. Therefore, a node is created every 15 units along the X direction and every 60 units along the Y direction on the Surface object.","type":"text"}]},{"type":"codeBlock","content":[{"text":"\n \n \n \n \n \n \n \n \n","type":"text"}]},{"type":"extension","attrs":{"layout":"default","extensionType":"com.atlassian.confluence.macro.core","extensionKey":"drawio-sketch","parameters":{"macroParams":{"zoom":{"value":"1"},"simple":{"value":"0"},"inComment":{"value":"0"},"pageId":{"value":"2129035273"},"custContentId":{"value":"2128740387"},"lbox":{"value":"1"},"diagramDisplayName":{"value":"CXCY"},"contentVer":{"value":"1"},"revision":{"value":"1"},"baseUrl":{"value":"https://openbrim.atlassian.net/wiki"},"diagramName":{"value":"CXCY"},"pCenter":{"value":"0"},"width":{"value":"783.5"},"links":{"value":""},"tbstyle":{"value":""},"height":{"value":"498.5"}},"macroMetadata":{"macroId":{"value":"1ccc4ab8-6cbe-4697-b0c6-f220d1d3c587"},"schemaVersion":{"value":"1"},"placeholder":[{"type":"image","data":{"url":"https://ac.draw.io/connectImage?zoom=1&simple=0&inComment=0&pageId=2129035273&custContentId=2128740387&lbox=1&diagramDisplayName=CXCY&contentVer=1&revision=1&baseUrl=https%3A%2F%2Fopenbrim.atlassian.net%2Fwiki&diagramName=CXCY&pCenter=0&width=783.5&links=&tbstyle=&height=498.5"}}],"title":"draw.io Board"}},"localId":"4428b87e-f806-4a04-b331-d41e741a5f9a"}},{"type":"paragraph","content":[{"text":"ConstraintPoints","type":"text","marks":[{"type":"strong"}]}]},{"type":"paragraph","content":[{"text":"The ","type":"text"},{"text":"ConstraintPoints ","type":"text","marks":[{"type":"em"}]},{"text":"parameter forces additional point or points to be assigned as nodes. ","type":"text"}]},{"type":"codeBlock","content":[{"text":"\n \n \n \n \n \n \n \n \n","type":"text"}]},{"type":"extension","attrs":{"layout":"default","extensionType":"com.atlassian.confluence.macro.core","extensionKey":"drawio-sketch","parameters":{"macroParams":{"zoom":{"value":"1"},"simple":{"value":"0"},"inComment":{"value":"0"},"pageId":{"value":"2129035273"},"custContentId":{"value":"2128740417"},"lbox":{"value":"1"},"diagramDisplayName":{"value":"ConstaintPoints"},"contentVer":{"value":"1"},"revision":{"value":"1"},"baseUrl":{"value":"https://openbrim.atlassian.net/wiki"},"diagramName":{"value":"ConstaintPoints"},"pCenter":{"value":"0"},"width":{"value":"778"},"links":{"value":""},"tbstyle":{"value":""},"height":{"value":"754"}},"macroMetadata":{"macroId":{"value":"79a6d6f4-cd08-45f7-bb68-09d83ded9429"},"schemaVersion":{"value":"1"},"placeholder":[{"type":"image","data":{"url":"https://ac.draw.io/connectImage?zoom=1&simple=0&inComment=0&pageId=2129035273&custContentId=2128740417&lbox=1&diagramDisplayName=ConstaintPoints&contentVer=1&revision=1&baseUrl=https%3A%2F%2Fopenbrim.atlassian.net%2Fwiki&diagramName=ConstaintPoints&pCenter=0&width=778&links=&tbstyle=&height=754"}}],"title":"draw.io Board"}},"localId":"3382064c-05f4-4b9f-8f80-68915cfd63d9"}},{"type":"paragraph","content":[{"text":"MeshDirection","type":"text","marks":[{"type":"strong"}]}]},{"type":"paragraph","content":[{"text":"As a default setting, mesh direction is decided by the polygon’s surface. If a mesh surface is not a rectangle, there will be non-perpendicular mesh. To demonstrate that see the following figure where the mesh is created parallel to the blue arrows.","type":"text"}]},{"type":"codeBlock","content":[{"text":"\n \n \n \n \n \n \n \n \n \n","type":"text"}]},{"type":"extension","attrs":{"layout":"default","extensionType":"com.atlassian.confluence.macro.core","extensionKey":"drawio-sketch","parameters":{"macroParams":{"zoom":{"value":"1"},"simple":{"value":"0"},"inComment":{"value":"0"},"pageId":{"value":"2129035273"},"custContentId":{"value":"2129494021"},"lbox":{"value":"1"},"diagramDisplayName":{"value":"MeshDirection1"},"contentVer":{"value":"1"},"revision":{"value":"1"},"baseUrl":{"value":"https://openbrim.atlassian.net/wiki"},"diagramName":{"value":"MeshDirection1"},"pCenter":{"value":"0"},"width":{"value":"524.54"},"links":{"value":""},"tbstyle":{"value":""},"height":{"value":"496"}},"macroMetadata":{"macroId":{"value":"4742f1c7-c878-4c67-8260-d3b6f7e66330"},"schemaVersion":{"value":"1"},"placeholder":[{"type":"image","data":{"url":"https://ac.draw.io/connectImage?zoom=1&simple=0&inComment=0&pageId=2129035273&custContentId=2129494021&lbox=1&diagramDisplayName=MeshDirection1&contentVer=1&revision=1&baseUrl=https%3A%2F%2Fopenbrim.atlassian.net%2Fwiki&diagramName=MeshDirection1&pCenter=0&width=524.54&links=&tbstyle=&height=496"}}],"title":"draw.io Board"}},"localId":"c6e378fc-8ab0-4443-8405-7494c88c5e25"}},{"type":"paragraph","content":[{"text":"To control the direction of the created mesh lines, the ","type":"text"},{"text":"MeshDirection","type":"text","marks":[{"type":"em"}]},{"text":" parameter is introduced. 3 points need to be defined which represents two lines in order to set this parameter. ","type":"text"},{"text":"MeshDirection=\"[[0,0,0],[1,0,0],[1,1,0]]\"","type":"text","marks":[{"type":"code"}]},{"text":" is set for this example and the created mesh lines are parallel to global X and Y axes.","type":"text"}]},{"type":"codeBlock","content":[{"text":"\n \n \n \n \n \n \n \n \n \n","type":"text"}]},{"type":"extension","attrs":{"layout":"default","extensionType":"com.atlassian.confluence.macro.core","extensionKey":"drawio-sketch","parameters":{"macroParams":{"zoom":{"value":"1"},"simple":{"value":"0"},"inComment":{"value":"0"},"pageId":{"value":"2129035273"},"custContentId":{"value":"2129526791"},"lbox":{"value":"1"},"diagramDisplayName":{"value":"Mesh Direction 2"},"contentVer":{"value":"1"},"revision":{"value":"1"},"baseUrl":{"value":"https://openbrim.atlassian.net/wiki"},"diagramName":{"value":"Mesh Direction 2"},"pCenter":{"value":"0"},"width":{"value":"588.9700000000003"},"links":{"value":""},"tbstyle":{"value":""},"height":{"value":"668"}},"macroMetadata":{"macroId":{"value":"208744eb-88af-4792-9267-721294a35534"},"schemaVersion":{"value":"1"},"placeholder":[{"type":"image","data":{"url":"https://ac.draw.io/connectImage?zoom=1&simple=0&inComment=0&pageId=2129035273&custContentId=2129526791&lbox=1&diagramDisplayName=Mesh+Direction+2&contentVer=1&revision=1&baseUrl=https%3A%2F%2Fopenbrim.atlassian.net%2Fwiki&diagramName=Mesh+Direction+2&pCenter=0&width=588.9700000000003&links=&tbstyle=&height=668"}}],"title":"draw.io Board"}},"localId":"e996180b-2f15-4327-93ef-ebc08462ed66"}},{"type":"paragraph","content":[{"text":"GridLinesX, GridLinesY, (GridLinesZ)","type":"text","marks":[{"type":"strong"}]}]},{"type":"paragraph","content":[{"text":"GridLinesX ","type":"text","marks":[{"type":"em"}]},{"text":"and","type":"text"},{"text":" GridLinesY ","type":"text","marks":[{"type":"em"}]},{"text":"parameters force respective axis mashes to be created on the specified line. In other words, ","type":"text"},{"text":"GridlinesX ","type":"text","marks":[{"type":"em"}]},{"text":"and ","type":"text"},{"text":"GridLinesY ","type":"text","marks":[{"type":"em"}]},{"text":"overwrite ","type":"text"},{"text":"CX ","type":"text","marks":[{"type":"em"}]},{"text":"and ","type":"text"},{"text":"CY ","type":"text","marks":[{"type":"em"}]},{"text":"respectively. An example is demonstrated by using ","type":"text"},{"text":"the GridLinesY ","type":"text","marks":[{"type":"em"}]},{"text":"parameter. Generally, beam mashes are made along the X direction in bridges, the GridLinesY parameter can be thought of as beam reference lines.","type":"text"}]},{"type":"paragraph","content":[{"text":"GridLinesY inputs need to be in order with respect to the y-axis.","type":"text"}]},{"type":"codeBlock","content":[{"text":"\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n

\n","type":"text"}]},{"type":"paragraph"},{"type":"extension","attrs":{"layout":"default","extensionType":"com.atlassian.confluence.macro.core","extensionKey":"drawio-sketch","parameters":{"macroParams":{"zoom":{"value":"1"},"simple":{"value":"0"},"inComment":{"value":"0"},"pageId":{"value":"2129035273"},"custContentId":{"value":"2129330217"},"lbox":{"value":"1"},"diagramDisplayName":{"value":"ConstraintLines"},"contentVer":{"value":"1"},"revision":{"value":"1"},"baseUrl":{"value":"https://openbrim.atlassian.net/wiki"},"diagramName":{"value":"ConstraintLines"},"pCenter":{"value":"0"},"width":{"value":"896"},"links":{"value":""},"tbstyle":{"value":""},"height":{"value":"507"}},"macroMetadata":{"macroId":{"value":"60fd7a16-dda2-4c8d-97f0-cdc6a2f6c842"},"schemaVersion":{"value":"1"},"placeholder":[{"type":"image","data":{"url":"https://ac.draw.io/connectImage?zoom=1&simple=0&inComment=0&pageId=2129035273&custContentId=2129330217&lbox=1&diagramDisplayName=ConstraintLines&contentVer=1&revision=1&baseUrl=https%3A%2F%2Fopenbrim.atlassian.net%2Fwiki&diagramName=ConstraintLines&pCenter=0&width=896&links=&tbstyle=&height=507"}}],"title":"draw.io Board"}},"localId":"2651d2cb-3883-4709-b82e-56fff5bf9768"}},{"type":"paragraph","content":[{"text":"GridsXAlignH, GridsYAlignH, (GridsZAlignH)","type":"text","marks":[{"type":"strong"}]}]},{"type":"paragraph","content":[{"text":"GridsXAlignH ","type":"text","marks":[{"type":"em"}]},{"text":"and","type":"text"},{"text":" GridsYAlignH ","type":"text","marks":[{"type":"em"}]},{"text":"parameters allow overwriting the alignment rules of the line definitions that are done by using ","type":"text"},{"text":"GridLinesX ","type":"text","marks":[{"type":"em"}]},{"text":"and","type":"text"},{"text":" GridLinesY","type":"text","marks":[{"type":"em"}]},{"text":". This parameter is useful for kinked bridges whose girders do not match the alignment.","type":"text"}]},{"type":"codeBlock","content":[{"text":"\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n

\n","type":"text"}]},{"type":"extension","attrs":{"layout":"default","extensionType":"com.atlassian.confluence.macro.core","extensionKey":"drawio-sketch","parameters":{"macroParams":{"zoom":{"value":"1"},"simple":{"value":"0"},"inComment":{"value":"0"},"pageId":{"value":"2129035273"},"custContentId":{"value":"2129723400"},"lbox":{"value":"1"},"diagramDisplayName":{"value":"GridsYAlignH"},"contentVer":{"value":"2"},"revision":{"value":"2"},"baseUrl":{"value":"https://openbrim.atlassian.net/wiki"},"diagramName":{"value":"GridsYAlignH"},"pCenter":{"value":"0"},"width":{"value":"956"},"links":{"value":""},"tbstyle":{"value":""},"height":{"value":"546"}},"macroMetadata":{"macroId":{"value":"a023f55a-fb67-437f-bf02-daabf3fb9515"},"schemaVersion":{"value":"1"},"placeholder":[{"type":"image","data":{"url":"https://ac.draw.io/connectImage?zoom=1&simple=0&inComment=0&pageId=2129035273&custContentId=2129723400&lbox=1&diagramDisplayName=GridsYAlignH&contentVer=2&revision=2&baseUrl=https%3A%2F%2Fopenbrim.atlassian.net%2Fwiki&diagramName=GridsYAlignH&pCenter=0&width=956&links=&tbstyle=&height=546"}}],"title":"draw.io Board"}},"localId":"a3a775f1-d2de-4b11-a02a-3057d81e0889"}},{"type":"paragraph","content":[{"text":"FEMeshRegion","type":"text","marks":[{"type":"strong"}]}]},{"type":"paragraph","content":[{"text":"The ","type":"text"},{"text":"FEMeshRegion ","type":"text","marks":[{"type":"em"}]},{"text":"core object allows the user to define additional parameters on the specified surface. This can be beneficial for use of ","type":"text"},{"text":"FEGroup ","type":"text","marks":[{"type":"em"}]},{"text":"and ","type":"text"},{"text":"Filter","type":"text","marks":[{"type":"em"}]},{"text":".","type":"text"}]},{"type":"codeBlock","content":[{"text":"\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n","type":"text"}]},{"type":"paragraph"},{"type":"paragraph","content":[{"text":"Node1OffZ, Node2OffZ, Node3OffZ, Node4OffZ","type":"text","marks":[{"type":"strong"}]}]},{"type":"paragraph","content":[{"text":"This parameter allows the offset of each respective node of the shell element by the given value. It can be defined in the other directions (X and Y) as well. In the example object, on the surface Nodes, 1 and 3 are offset by 10 units.","type":"text"}]},{"type":"codeBlock","content":[{"text":"\n \n \n \n \n \n \n \n \n","type":"text"}]},{"type":"extension","attrs":{"layout":"default","extensionType":"com.atlassian.confluence.macro.core","extensionKey":"drawio-sketch","parameters":{"macroParams":{"zoom":{"value":"1"},"simple":{"value":"0"},"inComment":{"value":"0"},"pageId":{"value":"2129035273"},"custContentId":{"value":"2129887272"},"lbox":{"value":"1"},"diagramDisplayName":{"value":"Node1OffZ"},"contentVer":{"value":"1"},"revision":{"value":"1"},"baseUrl":{"value":"https://openbrim.atlassian.net/wiki"},"diagramName":{"value":"Node1OffZ"},"pCenter":{"value":"0"},"width":{"value":"881"},"links":{"value":""},"tbstyle":{"value":""},"height":{"value":"301"}},"macroMetadata":{"macroId":{"value":"5274c071-f7fc-44b6-848c-c1a5a937a918"},"schemaVersion":{"value":"1"},"placeholder":[{"type":"image","data":{"url":"https://ac.draw.io/connectImage?zoom=1&simple=0&inComment=0&pageId=2129035273&custContentId=2129887272&lbox=1&diagramDisplayName=Node1OffZ&contentVer=1&revision=1&baseUrl=https%3A%2F%2Fopenbrim.atlassian.net%2Fwiki&diagramName=Node1OffZ&pCenter=0&width=881&links=&tbstyle=&height=301"}}],"title":"draw.io Board"}},"localId":"4d35cc79-2b06-4092-a885-329ffe4af3c0"}},{"type":"paragraph"}],"version":1}

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