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1 (% class="box infomessage" %)
2 (((
3 Icon: [[image:1584697951604-323.png]]
4 )))
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6 The steps of a straight line definition:
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8 1. Define the start point of the line by giving coordinates or mouse-clicking.
9 1. Define the end point of the line by giving coordinates or mouse-clicking.
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11 [[image:1584698010062-757.png]]
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13 Figure: Some examples for defining structural objects with Straight line
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15 Although Walls are planar objects with reference line, they are vertical and defined by their base reference line only in the **FEM-Design Plate** and **3D Structure** Modules. The final geometry of the reference region is set by the wall height. The next figure shows the differences of height measuring between the //Plate// and //3D Structure //Modules. Of course, the height defines the position of reference region of curved Walls too.
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18 [[image:1584698061793-692.png]]
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20 Figure: Height direction of Walls in Plate and 3D Structure Modules
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22 |[[image:light.png]]|In 3D Structure Module, the rectangle shape of the wall can be edited by the **Modify region > Split region** tool and other editing tools (//Edit// menu). Also the **Hole** tool of Wall tool palette can be used to edit the reference regions.
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25 [[image:image-20200320105211-9.png]]
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27 Figure: Some examples for additional editing of Wall region
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