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90 lines
3.3 KiB
Plaintext
90 lines
3.3 KiB
Plaintext
/*!
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\page measurements_page Measurements
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Mesh module provides the possibility to perform different measurements
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of the selected mesh data.
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All measurement operations are available via \b Measurements
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top-level menu. Access to the measurements operations is
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implemented via a single dialog box, where each operation is represented
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as a separate tab page.
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\section min_distance_anchor Minimum Distance
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This operation allows measuring the distance between two objects.
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Currently only node-to-node and node-to-origin operations are
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available, but this operation will be extended in the future to support
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other mesh objects - elements, meshes, sub-meshes and groups.
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To start <b>Minimum Distance</b> operation, select <b>Minimum Distance</b>
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tab in \b Measurements dialog.
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\image html min_distance.png
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Choose the first and the second target by
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switching the corresponding radio buttons, then select the objects the distance
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between which is to be calculated (or input their IDs directly
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in case of nodes/elements) and press \b Compute button.
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The following targets are supported:
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- \b Node: single mesh node;
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- \b Element: single mesh element (not available in this version);
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- \b Object: mesh, sub-mesh or group object (not available in this
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version);
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- \b Origin: origin of the global co-ordinate system.
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The result will be shown in the bottom area of the dialog. In addition, a simple
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preview will be shown in the 3D viewer.
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\image html min_distance_preview.png
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\section bounding_box_anchor Bounding Box
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This operation allows calculating the bounding box of the selected
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object(s).
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To start <b>Bounding Box</b> operation, select <b>Bounding Box</b>
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tab in \b Measurements dialog.
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\image html bnd_box.png
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Choose the required type of the object by switching the corresponding radio button, select the object(s) and press \em Compute button.
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The following types of input are available:
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- \b Objects: one or several mesh, sub-mesh or group objects;
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- \b Nodes: a set of mesh nodes;
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- \b Elements: a set of mesh elements.
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The result of calculation will be shown in the bottom area of the
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dialog. In addition, a simple preview will be shown in the 3D viewer.
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\image html bnd_box_preview.png
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\section basic_properties_anchor Basic Properties
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This operation provides calculation of length, area or volume for the the selected object:
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- \b Length is calculated as a sum of lengths of all 1D elements;
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- \b Area is a sum of areas of all 2D elements
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- \b Volume is a sum of volumes of all 3D elements.
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To start a <b>Basic Properties</b> calculation, select <b>Length</b>, <b>Area</b> or <b>Volume</b> item.
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\image html basic_props.png
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In the dialog box select the required type of calculation (length, area or volume) and the object (mesh, sub-mesh or group) and press \b Compute button.
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The result of calculation will be shown in the bottom area of the dialog.
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\note
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- If the mesh consists of 3D elements only, its "length" and "area" will be 0.
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- As calculation result is a sum of lengths, areas and volumes of all mesh elements, the
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duplication is not taken into account; i.e. all duplicated elements
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(elements built on the same set of nodes) will be included into the result.
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- Similarly, intersection of elements is not taken into account.
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<b>See Also</b> a sample TUI Script of
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\ref tui_measurements_page "Measurement operations".
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*/
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