RockWorks | Utilities | Grid Menu
Use the tools in the Utilities | Grid menu to manipulate and analyze grid models. This topic summarizes the tools that are available - click on a link for more information.
- Statistics: Tools for analyzing grid model value ranges and for comparing the model to the original data
- Report - A textual summary of the grid model's contents
- Histogram - A frequency histogram of the grid model's values
- Krajewskigram - A scatterplot showing original values versus interpolated values.
- Residuals - Computes the difference between original values and interpolated values. (Grid error)
- Multivariate Anomalies - Compares multiple grid models automatically, showing anomalies.
- Normalize - Normalizes a grid model's values to a user-defined range.
- Standardize - Stores a grid model's values as standard deviations.
- Math: Tools for doing arithmetic operations with grid models, storing results in a new grid
- Grid & Grid - Perform arithmetic operations with two grid models
- Grid & Constant - Perform arithmetic operations with a grid model and a constant
- Density Conversion - Multiplies a thickness grid by density, to determine mass
- Absolute Value - Computes the absolute value of grid nodes
- Resample - Change the extents and/or node spacing of a grid model
- Filters: Tools for filtering grid node Z values based on ranges or node locations, storing results in a new grid
- Boolean - Convert an existing grid to a yes/no Boolean grid based on a Z value range
- Fill Sinks - Removes closed depressions from a grid model
- Limit - Constrain a grid with another grid, stopping high or low values and reassigning the values from the constraining grid
- Minimum Area - Reads a Boolean or conventional grid and evaluates contiguous cells that exceed a user-defined area
- Polygon Clip - Edits grid node values inside/outside a polygon, reassigning a constant or node values from another grid
- Range - Deletes high or low Z-values from a grid file, reassigning them a user-specified constant
- Replace - Replaces grid node values with the value of the closest point listed in the Utilities datasheet
- Round - Rounds grid node values up or down to the user-declared Z-value rounding interval
- Smooth - Averages the Z-values based on a user declared "filter" size, to smooth out "noise"
- Edit: Load a grid model into an interactive editor for modifying node values
- Directional Analyses: Tools for analyzing and mapping slope and direction of grid model surfaces
- Grid -> 2D Flow Map - Creates a 2D map showing flow from high to low nodes with continuous lines
- Grid -> 3D Flow Diagram - Creates a simulated three-dimensional drainage net
- Grid -> Flow Vector Table - Computes flow from high to low nodes, storing the flow vector line segment coordinates in the Utilities datasheet.
- Grid -> Upgradient Area Map - Creates a map which represents the number of grid nodes that are upgradient from each node
- Grid -> Aspect Map - Computes grid slope and generates a map of slope direction (0 to 360)
- Grid -> Downgradient Vector Map - Creates a 2D map containing small arrows at each grid node pointing downhill
- Grid -> Rose Diagram - Computes grid slope and creates a rose diagram to summarize the directionality of the aspect bearings (dip direction) or of the corresponding structure bearings (strike direction)
- Grid -> Second Derivative Map - Computes grid slope, then computes the change of the slope values to highlight where slope is changing.
- Grid -> Slope Map - Computes grid slope and generates a slope map.
- Grid -> Stereonet - Computes grid slope and creates a stereonet diagram to summarize the directionality of the aspect bearings (dip direction) and the steepness of the slopes (dip angle)
- Grid -> Strike and Dip Map - Computes grid slope and creates a map showing strike and dip symbols at each grid node
- Grid -> Upgradient Vector Map - Creates a 2D map containing small arrows at each grid node pointing uphill
- Movement Analysis - Determines the direction, inclination, distance, and velocity for X, Y, Z and time data
- Slope/Aspect Analysis - Computes the changes in Z-values between neighboring nodes in an existing grid file, and store these in up to three new grid files: a slope grid, an aspect grid, and/or a second-derivative grid
- Trend Surface Analysis: Tools for fitting a polynomial trend surface to a grid model
- Report - Performs a trend surface analysis on a selected Z-value column in the data sheet and lists the correlation and residuals for 1st - 6th order polynomials in a report
- Residuals - Performs a trend surface analysis on a selected z-value column and computes the residuals, representing the difference between observed z-values and trend z-values, saving the residuals in the datasheet
- Morph: Generates a series of intermediate "morphed" contour-map images given two "end-grids" or a list of multiple grids, stores raster images of the maps, and automatically loads them into the RockWorks Picshow program or exports to a video format
- Mosaic: Combines two or more grids - side-by-side or overlapping - into a single grid model
- Initialize: Creates a new grid model that represents a flat plane with a user-defined elevation or a dipping plane based on a user-defined orientation
- Import: Imports grid models from other programs, storing them in a RockWorks .RwGrd format
- Export: Exports RockWorks grid models to another format
- LIDAR XYZ -> Grid: Imports LiDAR XYZ files generates a RockWorks .RwGrd grid model
- Grid(s) -> Profile:
- Single: Creates a single profile cut through a single, existing grid model, for display as a line profile diagram
- Multiple: Creates a single profile cut through multiple grid models, for display as multi-profile line diagram.
- Grid -> Fence: Creates three-dimensional profiles based on an existing grid model, for display in 3D as tubes
- Grids -> Stratigraphic Fence: Creates a 3D stratigraphic fence diagram based on a list of existing grid models
- Grids -> Stratigraphic Model: Creates a 3D stratigraphic model diagram based on a list of existing grid models
- Grids -> 3D Stack: Creates stacked, planar surfaces in 3D based on a list of existing grid models
- Grids -> Stratigraphic Logs: Defines the stratigraphic contacts in the borehole database based on a list of existing grid models
- Grids -> Solid Model: Creates a 3D stratigraphic solid model (*.RwMod file) based on a list of existing grid models
- Grids -> Groundwater Vistas Matrix: Use RockWorks grid models to define Groundwater Vistas MODFLOW layer elevations
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