node_computation The node_computation module is used to perform mathematical operations on nodal data fields and coordinates. Data values can be used to affect coordinates (x, y, or z) and coordinates can be used to affect data values. Up to two fields can be input to node_computation. Mathematical expressions can involve one or both of the input fields**. Fields must be identical grids. This means they must have the same number of nodes and cells, otherwise the results will not make sense.**
cell_computation The cell_computation module is used to perform mathematical operations on cell data in fields. Unlike node_compuation, it cannot affect coordinates. Though data values can’t be used to affect coordinates (x, y, or z), the cell center (average of nodes) coordinates can be used to affect data values. Up to two fields can be input to cell_computation. Mathematical expressions can involve one or both of the input fields.
combine_nodal_data The combine_nodal_data module is used to create a new set of nodal data components by selecting components from up to six separate input data fields. The mesh (x-y-z coordinates) from the first input field, will be the mesh in the output. The input fields should have the same scale and origin, and number of nodes in order for the output data to have any meaning. This module is useful for combining data contained in multiple field ports or files, or from different Kriging modules.
interpolate data The interpolate data module interpolates nodal and/or cell data from a 3D or 2D field to either a 2D mesh or 1D line. Typical uses of this module are mapping of data from a 3D mesh onto a geologic surface or a 2D fence section. In these applications the 2D surface(s) simply provide the new geometry (mesh) onto which the adjacent nodal values are interpolated. The primary requirement is that the data be equal or higher dimensionality than the mesh to be interpolated onto. For instance, if the user has a 2D surface with nodal data (perhaps z values), then a 1D line may be input and the nearest nodal values from the 2D surface will be interpolated onto it.
The compute thickness module allows you to compute the thickness of complex plumes or cell sets such as lithologic modeling's materials.
translate by data The translate by data module accepts nearly any mesh and translates the grid in x, y, or z based upon either a nodal or cell data component or a constant. The interface enables changing the Scale Factor for z translates to accommodate an overall z exaggeration in your applications. This module is most useful when used with the import vector gis module to properly place polygonal shapefile cells at the proper elevation.
cell data to node data The cell data to node data module is used to translate cell data components to nodal data components. Cell data components are data components which are associated with cells rather than nodes. Most modules in EVS that deal with analytical or continuum data support node based data. Therefore, cell data to node data can be used to translate cell based data to a nodal data structure consistent with other EVS modules.
The node data to cell data module is used to translate nodal data components to cell data components. Cell data components are data components which
shrink cells The shrink cells module produces a mesh containing disjoint cells which can be optionally shrunk relative to their geometric centers. It creates duplicate nodes for all cells that share the same node, making them disjoint. If the shrink cells toggle is set, the module computes new coordinates for the nodes based on the specified shrink factor (which specifies the scale relative to the geometric centers of each cell). The shrink factor can vary from 0 to 1. A value of 0 produces non-shrunk cells; 1 produces completely collapsed cells (points). This module is useful for separate viewing of cells comprising a mesh.
cell centers cell centers module produces a mesh containing Point cell set, each point of which represents a geometrical center of a corresponding cell in the input mesh. The coordinates of cell centers are calculated by averaging coordinates of all the nodes of a cell. The number of nodes in the output mesh is equal to number of cells in the input mesh. If the input mesh contains Cell_Data it becomes a Node_Data in the output mesh with each node values equal to corresponding cell value. Nodal data is not output directly. You can use this module to create a position mesh for the glyphs at nodes module. You may also use this module as mesh input to the interpolate data module, then send the same nodal values as the input grid, to create interpolated nodal values at cell centroids.
This module allows you to assign data and subset all (or selected) discrete (disconnected) regions of plumes or lithologic materials.