Earth Volumetric Studio Help System
C Tech’s Earth Volumetric Studio is the world’s leading three-dimensional volumetric Earth Science software system developed to address the needs of all Earth science disciplines. Studio is the culmination of C Tech’s 30+ years of 3D modeling development, building upon the developments of legacy software EVS-Pro, MVS and EnterVol. Studio’s customizable toolkit is targeted at geologists, environmental engineers, geochemists, geophysicists, mining engineers, civil engineers and oceanic scientists. Whether your project is a corner gas station with leaking underground fuel tanks, a geophysics survey of a large earthen dam combining 3D resistivity and magnetics data, or modeling of salt domes and solution mined caverns for the U.S. Strategic Petroleum Reserves, C Tech’s Earth Volumetric Studio has the speed and functionality to address your most challenging tasks. Our software is used by organizations worldwide to analyze all types of analyte and geophysical data in any environment (e.g. soil, groundwater, surface water, air, etc.).
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Earth Volumetric Studio and the Earth Volumetric Studio End User License Agreement (EULA) are available for download at https://ctech.com/downloads/
Earth Volumetric Studio is available only as download from https://ctech.com/downloads/
This section of the documentation provides a guide to the main components of the Earth Volumetric Studio (EVS) user interface. It is designed to help you understand the layout, functionality, and interaction between the different windows and tools that form the core of the application. From the initial Startup Window to the detailed Properties panels and the powerful Viewer, these articles cover everything you need to know to navigate and manage your workspace effectively.
C Tech Web Scenes (*.ctws) are single file deliverables which can contain full 3D models, multiple states of content, end-user controllable views, an
EVS Presentations (.EVSP) provide a single file deliverable which allows our customers to provide versions of their Earth Volumetric Studio (EVS) applications to their clients, who can then modify properties interactively. For example, an EVS Presentation can allow your clients to: Choose their own plume levels Change Z-Scale and/or Explode distance Move slices or cuts through the model Draw their own paths for (cross section) cross-sections This works by creating a restricted version of an EVS application, saved as an EVS Presentation (.evsp file).
Basic Training: Workbooks Overview The Earth Volumetric Studio Environment 2D Estimation Exporting from Excel to C Tech File Formats 3D Data Requirements Overview Packaging Data into Applications Geostatistics Overview Visualization Fundamentals Video Tutorials at ctech.com The workbooks in this help cover only the most basic functionality. We offer two levels of training videos which can be accessed at ctech.com which provide more comprehensive training from a novice to an advanced user. We offer two levels of training videos in addition to the limited workbooks which are built-into the software help system (and are included online). The training videos include:
EVS Data Input & Output Formats EVS Data Input & Output Formats Input EVS conducts most of its analysis using input data contained in a number of ASCII files. These files can generally be created using the Data Transformation Tools, which are on the Tools tab of EVS. These tools will create C Tech’s formats from from Microsoft Excel files. Handling Non-Detects Handling Non-Detects It is important to understand how to properly handle samples that are classified as non-detects. A non-detect is an analytical sample where the concentration is deemed to be lower than could be detected using the method employed by the laboratory. Non-detects are accommodated in EVS for analysis and visualization using a few very important parameters that should be well understood and carefully considered. These parameters control the clipping non-detect handling in all of the EVS modules that read chemistry (.apdv, or .aidv) files. The affected modules are 3d estimation, krig_2d, post_samples, and file_statistics.
Module Libraries EVS modules can each be considered software applications that can be combined together by the user to form high level customized applications performing analysis and visualization. These modules have input and output ports and user interfaces. The library of module are grouped into the following categories: Estimation modules take sparse data and map it to surface and volumetric grids Geology modules provide methods to create surfaces or 3D volumetric grids with lithology and stratigraphy assigned to groups of cells Display modules are focused on visualization functions Analysis modules provide quantification and statistical information Annotation modules allow you to add axes, titles and other references to your visualizations Subsetting modules extract a subset of your grids or data in order to perform boolean operations Proximity modules create new data which can be used to subset or assess proximity to surfaces, areas or lines. Processing modules act on your data Import modules read files that contain grids, data and/or archives Export modules write files that grids, data and/or archives Modeling modules are focused on functionality related to simulations and vector data Geometry modules create or act upon grids and geometric primitives Projection modules transform grids into other coordinates or dimensionality Image modules are focused on aerial photos or bitmap operations Time modules provide the ability to deal with time domain data Tools are a collection of modules to make life easier View modules are focused on visualization and output of results Legacy Module Naming
Command Line Automation Automation of EVS Given an appropriate Enterprise license or Automation license, EVS can be run in a fully automated manner in two ways. The first is to use special command line flags to run the program, open applications, run scripts, and cleanly close when complete. The second is to use an external language and programming API to control EVS via custom written code. Automating EVS via Custom Code
Reducing Complexity in Applications C Tech recommends avoiding overly large applications. There are numerous ways to reduce the number of modules and complexity of an application, including but not limited to: Once the grid and estimation is complete, save those results as an EF2 file. A single read evs field module can then (typically) replace 3 to 5 modules. If the complexity is there to address multiple analytes and/or threshold levels in a CTWS file, scripted sequences can often reduce the number of modules by a factor of 5 or more. Understanding Display Resolution and Scaling The usability of EVS is influenced by your display’s effective resolution, which is a combination of its native resolution (e.g., 4K) and the scaling setting in Windows (e.g., 150%).