group objects

The group objects module organizes multiple renderable objects by grouping them into a single renderable object. Unlike a data object, group objects does not include data. Instead, it serves as a node in the rendering hierarchy that groups other data objects together and supplies common attributes for them. This object is connected directly to one of the viewers or to another data object.

Group objects combines the following:

• DefaultDatamap to convert scalar node or cell data to RGB color values. By default, the datamap’s minimum and maximum values are 0 and 255, respectively. This datamap is inherited by any children objects if they do not have their own datamaps.
• DefaultProps to control color, material, line attribute, and geometrical attributes.
• DefaultModes to control point, line, surface, volume, and bounds rendering modes.
• DefaultPickInfo to contain information when this object is picked.
• DefaultObject to control visibility, pickability, caching, transform mode, surface conversion, and image display attributes.

Ports

Properties

group objects to 2d overlay

The group objects to 2d overlay module applies any connected module’s output to the viewer’s 2D overlay. Objects in the overlay are not transformed (rotated, zoomed, panned). These objects are locked in position. This provides a mechanism to apply graphics like drawing title blocks or company logos.

You must ensure that the object sent to the 2D overlay fits inside its limited spatial extent. The 2D overlay is a window with an x-extent from -1.0 to 1.0. The y-extent is dependent on the aspect ratio of the viewer. With a default viewer having a 4:3 aspect ratio, it is three-quarters of the x-extent (e.g. -0.75 to 0.75).

Ports

Properties

This module has no user-configurable properties.

trigger script

The trigger script module provides a powerful way to link parameters and actions of multiple modules. This gives you the ability for a sequence of events to be “triggered” as the result of one or more parameters changing.

The module requires a Python script be created, which runs when you “Add” triggers. Triggers are module parameters that might change and thereby cause the script to be run. The script can do just about anything.

In addition to the triggers that you specify, there are 4 input (and output) ports that accept numbers (such as a plume level) that can be used in your script, and are more readily accessible without editing the Python script.

Ports

Properties

Variables

merge fields

The merge fields module combines the input fields from up to 4 separate inputs into a unified single field with any number of nodal data components, which can be output to other modules for processing or directly to the viewer. This is useful when you want to slice through or otherwise subset multiple fields using the same criteria.

You must be aware that fields contain more than just grids and data. They contain meta-data set during the creation of those grids and data, including, but not limited to:

• Data Processing (log or linear)
• Coordinate units
• Data units (mg/kg or %)
• Data Min and Max values (ensures that datamaps from kriging match datamaps in post samples)

NOTE: There are potential dangers and serious consequences of merging fields because we allow for merging of data without requiring strict name or meta data matching.

• Meta data from the leftmost input field is always used for the merged result.
• You can only merge fields having the same number of nodal and/or cell data components.
• We do not require strict name matching, therefore it is possible to merge data with very negative consequences. Examples are:
  • Benzene data from one input field with Toluene from another field.
  • Log Processed TPH data with linear processed TPH data.
  • One field with coordinate units of meters with another in feet.
• Overlapping Volumes: When you merge fields you must be aware that this is not an alternative way to create the union of multiple plumes.
  • The merge fields module does not remove overlapping volumes.
  • Volume calculations with volumetrics can count overlapping regions multiple times giving nonsensical values.

The Merge Cell Sets When Possible option works only if you have matching types and names. A good and appropriate example is merging fault blocks so that all “Clay” cell sets are controlled as a single entity.

Ports

Properties

float math

The float math module provides a simple means to perform mathematical operations on numbers coming from up to 4 input ports. By using multiple float math modules, any number of values may be combined.

The default equation is N1 + N2 + N3 + N4, which adds all four input values. Any of the available mathematical operators may be used in the expression.

The output Result Value port produces the numeric value resulting from the equation. The value will update when any of the input values are changed.

Ports

Properties

create tin

The create tin module is used to convert scattered sample data into a three-dimensional surface of triangular cells representing an unstructured mesh.

“Scattered sample data” means that there are discrete nodes in space. An example would be geology or analyte (e.g. chemistry) data where the coordinates are the x, y, and elevation of a measured parameter. The data is “scattered” because there is not necessarily an implicit grid of data.

Create tin uses a proprietary version of the Delaunay tessellation algorithm.

Ports

Properties

material to cellsets

The material to cellsets module is intended to receive a 3D field into its input port which has been processed through a module like plume. If the original field (pre-plume) had multiple cell sets related to geologic units or materials, the output of plume will generally have only two cell sets which comprise all hexahedron and all tetrahedron cells. The ability to control the visibility of the layer-cell sets is normally lost.

This module takes plume’s output and recreates the cell sets based on nodal data. However, since each geologic layer will likely have two cell sets each (one for all hexahedron and all tetrahedron cells), the output tends to have twice as many cell sets as the original pre-plume field.

Ports

Properties

loop

The loop module iterates an operation. For example, you could use a loop object to control the movement of an object in your application, such as incrementing the movement of a slider for a slice plane.

Ports

Properties

modify data 3d

The modify data 3d module provides the ability to interactively change data in 3D volumetric models. This is not a recommended practice since volumetric models created in EVS generally have underlying statistical measures of quality that will be meaningless if the data is modified in any way.

However, it is not unusual for a model to occasionally have regions where extrapolation artifacts cause shards of plumes to appear. This module provides a way to remove those.

The basic approach is to move the modification sphere to the problem region and set the size and shape of the ellipsoid before changing your data.

Note: This module does not modify the upstream data.

Ports

Properties

Modification Settings

Display Settings

create mask

The create mask module creates convex and concave hulls from input point data. The resulting mask can be output as a triangulated surface or as lines.

Ports

Properties