Function
- In midas Civil, the selection of nodes and elements during the data entry process of creating or assigning nodes and elements or attributes (boundary conditions, loads, etc.) is frequently repeated throughout the entire modeling process.
- The Select function allows users to select or deselect desired nodes or elements in the model window. It provides various powerful selection tools to perform efficient modeling tasks in a short time, from simple models to large and complex ones.
- In addition, it can be combined with the Activate function to display only the desired parts of the model on the work screen, creating an optimal modeling work environment.
- All the select functions are effective only on the nodes and elements activated by the Activate function.
- When you select an object using the Select function, the selected nodes and elements are displayed on the screen as follows:
Node
Change the color of nodes. Use the Color tab of the Display Option to modify the color displayed for the selected nodes.
Line Element
Change the color of element centerlines. Use the Color tab of the Display Option to modify the color displayed for the selected elements.
Plate Element
A representation of the reduced shape of the element is displayed when selected. Use the Color tab of the Display Option to modify the color displayed for the selected elements.
Solid Element
A representation of the reduced shape of the element is displayed when selected. Use the Color tab of the Display Option to modify the color displayed for the selected elements.
Call
From the main menu, select [View] tab > [Select] group > [Select] > [Identity]
From the main menu, select [View] tab > [Select] group > [Select] > [Filter]
From the main menu, select [View] tab > [Select] group > [Select] > [Single]
Shortcut key: [Ctrl] + [Shift] + S
From the main menu, select [View] tab > [Select] group > [Select] > [Window]
From the main menu, select [View] tab > [Select] group > [Select] > [Polygon]
From the main menu, select [View] tab > [Select] group > [Select] > [Intersect Line]
From the main menu, select [View] tab > [Select] group > [Select] > [Plane]
From the main menu, select [View] tab > [Select] group > [Select] > [Volume]
From the main menu, select [View] tab > [Select] group > [Select] > [Select All]
Shortcut key: [Ctrl] + [Shift] + A
From the main menu, select [View] tab > [Select] group > [Select] > [Select Previous]
From the main menu, select [View] tab > [Select] group > [Select] > [Select Recent Entities]
Input
Select Identity (or Select Identity Nodes / Elements)
Fig. Select Identity dialog box
The functions support the selection of nodes or elements by attributes (type of element, material property, section, boundary condition, etc.)
All : Select all the nodes and elements.
None : Cancel the selection of nodes and elements.
Inverse : Mutually interchange the status of the selected and unselected.
Prev : Recall the previous selection.
Nodes : Assign when selecting nodes.
Elements : Assign when selecting elements.
Identity list of nodes and elements
Element Type : Select by element types (Refer to "Create Elements")
Material : Select by material properties (Refer to "Material")
Section : Select by section properties (Refer to "Section")
Thickness : Select plate elements by thicknesses (Refer to "Thickness")
Named Plane : Select by plane names (Refer to "Named Plane")
Structure Group : Select by Structure Groups (See "Define Structure Group")
Boundary Group : Select by Boundary Groups (See "Define Boundary Group")
Load Group : Select by Load Groups (See "Define Load Group")
Supports : Select by support conditions (Refer to "Supports")
Beam End Release : Select by beam end release conditions (Refer to "Beam End Release")
In the case of Element Type, Material, Section and Thickness noted above, assign the elements with desired attributes in the Working Window rather than selecting the desired entities in the attributes sub-list.
When using the function, select a desired identity in the Identity list, click the entry field at the bottom of the sub-list and assign the entities of desired attributes in the Working Window. Check () Multiple to the right so that a number of entities can be assigned with the mouse.
Use the following buttons to add, remove or replace selected entities:
Add : Add the selected entities to the existing selection list.
Delete : Remove the selected entities from the existing selection list.
Replace : Replaces the selected entities with the contents in the existing selection list.
Intersect : Selects only the intersection nodes or elements that belong to both the selected entities and the existing selection list.
Fig. Select Identity > Section
Single
Place the mouse cursor near the node or element to be selected in the Model Window and left click the mouse to select the nodes or elements one-by-one.
If the selected entities are reassigned, the selection is cancelled. For efficiency, use the function in conjunction with Node Snap or Element Snap.
When you click and drag the left mouse button in a desired direction, the Select Window function is activated.
Fig. Select Single
Window
This is a function to select entities by specifying a rectangular boundary in the model window. It is called Select Window.
To select a target in the working screen using the mouse cursor, click sequentially (with the mouse left button) on the two diagonal corners of the rectangular area that includes the desired target.
When selecting with a rectangular region, if you first click the left side on the working screen and drag to the right, only the nodes or elements that are completely included in the rectangular region are selected. On the other hand, if you first click the right side and drag to the left, not only the nodes or elements completely included in the rectangular region but also the elements that overlap with the boundary line are selected simultaneously.
Fig. Select Window
Polygon
Select entities by defining the borders of a polygon in the Model Window.
To select the nodes and elements that are entirely included in a polygon area on the working screen, you can use the Polygon Selection function by clicking (mouse left button mouse) sequentially on the corners of the polygon that includes the target to be selected, and then double-clicking (mouse left button) on the last corner.
If you hold down the [Ctrl] key on the keyboard while double-clicking on the last corner, the elements on the boundary line of the polygon will also be selected at the same time.
Fig. Select Polygon
Intersect Line
It is a feature that allows you to select elements that intersect with a series of arbitrary lines drawn continuously on the working screen using the mouse cursor in the model window.
To draw a line, place the mouse cursor at an easily selectable initial position, then click the left button once. Similarly, select multiple positions in sequence in the same way, and then double-click the left button at the last position.
Select Intersect Line
Select Plane
It is a feature that selects all nodes and elements located in a defined plane by defining an arbitrary plane.
When the function is called, the following dialog box appears to define the target plane.
Fig. Select Plane dialog box
3 Points
It is used to select the desired plane by specifying three points located on the selected plane. When specifying points on the plane, enter the coordinates of the three points based on the global coordinate system, or select three points sequentially on the working screen with the mouse cursor.
XY Plane
It is used when the plane to be selected is parallel to the global X-Y plane, and you can input the global Z-coordinate of the plane or select an arbitrary point on the plane using the mouse cursor.
XZ Plane
It is used when the plane to be selected is parallel to the global X-Z plane, and you can input the global Y-coordinate of the plane or select an arbitrary point on the plane using the mouse cursor.
YZ Plane
It is used when the plane to be selected is parallel to the global Y-Z plane, and you can input the global X-coordinate of the plane or select an arbitrary point on the plane using the mouse cursor.
Fig. 3 Points function in Select Plane
The 3 Points function can easily define a plane that is not parallel to the axes of the Global Coordinate System (GCS) or User Coordinate System (UCS). The Arch Bridge shown in the figure is an example of defining a plane using the 3 Points function on a grid of points.
Select Volume
It is a function that selects all nodes and elements located within a specified arbitrary parallelepiped volume.
When the function is called, the following dialog box appears.
Fig. Select Volume dialog box
2 Points
This is a function that selects all vertices and elements located within an arbitrary parallelepiped volume. It is used when selecting objects within a given volume. To specify the parallelepiped volume, you can input the coordinates of two opposite diagonal corner points or select them using the mouse cursor in the working window.
XYZ Limit
This is used to define a parallelepiped volume by intervals along each coordinate axis. You can specify the maximum and minimum coordinate values for each axis in the global coordinate system directly or by clicking on the desired location on the screen with the mouse cursor after clicking on the input field.
Set Min Max
Clicking this button automatically inputs the maximum and minimum coordinate positions of the currently active structure, making it easy to set the desired area by re-entering only the necessary coordinates.
Fig. Select Volume(2 Points)
Fig. Select Volume(XYZ Limit)
Select All
Select the whole nodes and elements in a model view.
Select Previous
Select Previous recalls the latest selection.
Select Recent Entities
Select Recent Entities selects the most recently created nodes and elements.