RockWorks | ModOps | Grid Menu
Use the programs in the ModOps | Grid menu to manipulate and analyze grid models. This topic summarizes the tools that are available - click on a link for more information.
- Create: Create a new grid model from different types of data.
- XYZ - Grid: Read X and Y locations and Z values (concentrations, elevations, etc.) from the RockWorks Datasheet or an external text file, and generate a grid model, 2D map, and/or 3D surface.
- XYZ Dips - Grid: Read XY locations, Z (elevations), and planar orientation data for a structural surface from the RockWorks Datasheet and, using the Dip Gridding algorithm, generate a structural grid model for the surface, 2D map, and/or 3D surface.
- Lineations - Grid: Read X1, Y1, X2, Y2 lineation data from the RockWorks Datasheet, and create a grid model representing the lineation frequency, cumulative lengths, and/or intersections, with a variety of weighting options. Output a 2D map and/or 3D surface.
- Polygon List - Grid: Read a series of separate polygon files and create a grid model in which the nodes inside the polygons are assigned a specific value. Output a 2D map and/or 3D surface.
- Single Elevation/Dip - Grid: Create a new grid model that represents a flat plane with a user-defined elevation or a dipping plane based on a user defined orientation. Output a 2D map and/or 3D surface.
- ASCII LIDAR - Grid: Read external XYZ files created from LIDAR equipment and generate a grid model that represents the surface elevations. Output a 2D map and/or 3D surface.
- XYZ - Google Earth Cell Map: Read XYZ values from the RockWorks Datasheet, generate a "cell-model" grid file (.RwCMod file) for display as color-coded cells in Google Earth.
- Display: Read an existing RockWorks grid model (.RwGrd file) and generate a 2D map or 3D surface.
- Drape Grid: Drape an existing grid model (typically representing concentrations) over an existing elevation grid model, for display in 3D.
- Profile:
- Single Grid: Create a single profile cut through a single, existing grid model, for display as a line profile diagram
- Multiple Grids: Create a single profile cut through multiple grid models, for display as multi-profile line diagram.
- Section: Create a cross section cut through multiple grid models, for display as a multi-panel line section.
- Fence:
- Single Grid: Create three-dimensional "fence" profiles based on an existing grid model, for display in 3D as tubes
- Multiple Grids: Create three-dimensional "fence" profiles based on multiple existing grid models, for display in 3D as filled panels.
- Directional: Tools for analyzing and mapping slope and direction of existing grid model surfaces
- Flow Path Map: Create a 2D map showing flow from high to low nodes with continuous lines.
- 3D Flow Diagram: Create a simulated three-dimensional drainage net.
- Flow Table: Compute flow from high to low nodes, storing the flow vector line segment coordinates in the RockWorks Datasheet.
- Upgradient Drainage Area: Create a map which represents the number of grid nodes that are upgradient from each node
- Slope Grid: Compute grid slope and generate a slope map.
- Grid -> Aspect: Compute grid slope and generate a map of slope direction (0 to 360)
- Second Derivative: Compute grid slope, then compute the change of the slope values to highlight where slope is changing.
- Gradient Vector Map: Create a 2D map containing small arrows at each grid node pointing downhill or uphill.
- Strike and Dip Map: Compute grid slope and create a map showing strike and dip symbols at each grid node.
- Rose Diagram: Compute grid slope and create a rose diagram to summarize the directionality of the aspect bearings (dip direction) or of the corresponding structure bearings (strike direction).
- Stereonet: Compute grid slope and create a stereonet diagram to summarize the directionality of the aspect bearings (dip direction) and the steepness of the slopes (dip angle)
- Trend Surface Report: Perform a trend surface analysis on a selected Z-value column in the data sheet and list the correlation and residuals for 1st - 6th order polynomials in a report.
- Trend Surface Residuals: Perform 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.
- Math: Tools for doing arithmetic operations with grid models, storing results in a new grid.
- Grid & Grid: Perform arithmetic operations with two grid models.
- Add Multiple Grids: Add the node values in multiple existing grid models whose names are listed in the current datasheet.
- Grid & Constant: Perform arithmetic operations with a grid model and a constant.
- Thickness - Mass: Multiply a thickness grid by density, to determine mass.
- Absolute: Compute the absolute value of grid nodes.
- Resample: Change the extents and/or node spacing of a grid model.
- Statistics: Tools for analyzing grid model value ranges and for comparing the model to the original data
- Stats - Single Grid: Read an existing grid model and generate a textual summary of the contents.
- Histogram: Read an existing grid model and generate a frequency histogram of the node values.
- Scattergram: Read an existing grid model and the original XYZ values from which the grid was generated, and create a scatterplot showing original versus interpolated values.
- Residuals: Read an existing grid model and the original XYZ values from which the grid was generated, compute the difference between original and interpolated values, and list those in the datasheet.
- Normalize: Read an existing grid model and normalize the node values to a user-defined range.
- Standardize: Read an existing grid model, calculate node statistics, and re-save the node values as standard deviations.
- Multivariate Anomalies: Compare multiple grid models automatically, showing anomalies.
- 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.
- Distance Clipping: Replace grid node value based on their distance from a control point.
- Fill Sinks: Remove closed depressions from a grid model.
- Truncate: Constrain a grid with another grid, stopping high or low values and reassigning the values from the constraining grid.
- Minimum Area: Read a Boolean or conventional grid and evaluate contiguous cells that exceed a user-defined area.
- Pinchout: Choose to shift the top or bottom grid surface down or up (respectively) or shift both surfaces to meet at an average value.
- Polygon Clip: Edit grid node values inside/outside a polygon, reassigning a constant, null value, or node values from another grid.
- Hi/Lo Filter: Delete high or low Z-values from a grid file, reassigning them a user-specified constant or null value.
- Replace: Replace grid node values with the value of the closest point listed in the RockWorks datasheet.
- Round: Round grid node values up or down to the user-declared Z-value rounding interval.
- Smooth: Average the Z-values based on a user declared filter size, to smooth out "noise".
- Import: Import grid models from other programs, storing them in a RockWorks .RwGrd format.
- Export: Export RockWorks grid models to another format.
- Edit: Load a grid model into an interactive editor for modifying node values.
- Grids -> Strat Data: Define the stratigraphic contacts in the borehole database based on a list of existing grid models.
- Grids -> Solid: Insert an existing grid model into a solid model.
- Grids -> 3D Stack Diagram: Plot multiple flat grids in 3D space for the purpose of visual comparisons
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