RockWorks | Utilities | Imagery |
Vertical Images -> Color Model
Use this program to sample X/Y/Z/Color points from images listed within the Utilities datasheet, and to then interpolate a solid color model using these points. The input data is the same as that required for the Vertical Images -> 3D Panels option.
Be warned: this process can be slow.
See:
Menu Options
Step-by-Step Summary
Menu Options
- Specify the datasheet Input Columns in the left pane of the window.
- File Name: Select the column that lists the name(s) of the raster image(s) to be sampled and modeled.
Tip: use the File | Import | Create File List program to quickly create a list of specified file names.
- Layer Name: Select the column in which the layer names are listed. For this program, the layers are optional.
- X Lower-Left, Y Lower-Left, Z Lower-Left: Select the three columns in the datasheet that list the Easting, Northing, and elevation coordinates for the lower-left corner of the bitmap.
These can be defined in your project coordinates or other coordinate system. See Defining your Datasheet Coordinates for more information.
- X Upper-right, Y Upper-right, Z Upper-right: Select the three columns that list the Easting, Northing, and elevation coordinates for the upper-right corner of the bitmap.
- Color Model: First, tell the program whether you wish to use an existing color solid model (from a previous use of this tool or a Colors menu tool) or you wish to create a new color solid model, by clicking in the appropriate radio button.
! NOTE This is not trivial. Creating the model can take some time, depending on the resolution of the model and the detail of your data. If you already created a pleasing model, you can use the same model, which was stored on disk as an .RwMod file, for the 3D diagram.
- Create New Model: If want the program to interpolate a new model for the diagram, click in this radio button, and expand this item to establish the modeling settings.
- Solid Model Name: Click to the right to enter a name for the color model. The program will append automatically the file name extension .RwMod.
- Pixel Sampling Intervals: Converting every pixel to a control point will typically result in a control point array that is huge thereby creating memory and/or execution speed problems. The Point Sampling Intervals lets you create a reasonably-sized data set.
- X (Horizontal) Sampling Frequency: This setting determines how often, on a horizontal/column basis, the image pixels will be sampled. For example, a setting of 1 will sample every pixel whereas a setting of 5 will cause the program to sample every fifth pixel across the image.
- Y (Vertical) Sampling Frequency: This setting determines how often, on a vertical/row basis, the image pixels will be sampled. For example, a setting of 1 will sample every row of pixels whereas a setting of 5 will cause the program to sample every fifth row.
- Ignore Specified Color: It may be desirable that certain colors be ignored when converting image pixels to control points for modeling. For example, if the input raster images had black borders and patterns this might create undesirable effects within the final model. This filter lets the program ignore any pixels that fall within a specified color range.
- Color: This is the color that will be ignored.
- Tolerance: Use this setting to broaden the ignored color: If black is the color that is to be ignored, for example, there may be pixels that are nearly black (e.g. dark gray). The tolerance setting provides a means for expanding the range of the filter to include colors that are similar to the desired color. Tolerance is defined as a percent, whereby "100" would include all colors, and "0" would include the selected color only.
- Color Range Filter: Insert a check here to filter the input data based on color. (More.)
- Solid Modeling Options: Click on this button to establish important modeling settings:
- Algorithm (Modeling Method): This determines the modeling method to use, for creating a solid model from your image color data. (More.)
- Model Dimensions: This determines the model density. (More.) Unless there's a specific reason to do otherwise, you should probably leave the solid model dimensions set to the current project dimensions.
- Other Modeling Options: These include tilting, warping, filtering above-ground, defining this as a color model type, and much more.
- Use Existing Model: If you wish to display an already-existing color model, click in this radio button, and expand this item to select:
- Model Name: Click on this item to browse for the name of the existing color model (.RwMod file) to be used for this block diagram.
- Create 3-Dimensional Diagram: Insert a check here to create a 3D block diagram after the model is created. Expand this heading to set up the diagram.
Note that, unlike some other 3D diagrams (which represent plume models, for example), the voxel style is hard-wired to Voxels. Isosurface diagrams are not an option for color models.
- Diagram Title: Click here to type in a name for the model which will be stored in the 3D view.
- Plot Logs: Check this box to append striplogs to your 3D diagram.
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- Clip Logs: Check this sub-item if you want to restrict the logs to a particular elevation range. This should match the elevation range of the color model you are creating at this time (or the existing model, if specified).
- 3D Striplog Designer: Click on the 3D Striplog Designer tab to the right, to select the items to display in the individual logs to plot with the model.
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- Visible Items: Use the check-boxes in the Visible Items column to select which log items are to be displayed. See Visible Item Summary for information.
- Options: Click on any of the Visible Items names to see the item's settings in the Options pane to the right. See Visible Item Summary for links to the Options settings.
- Layout Preview: For each item you've activated, you'll see a preview cartoon in the upper pane, showing an overhead view of the log columns. Click and drag any item to rearrange the log columns; click and drag the circle handles to resize a column. See Using the 3D Log Designer.
- Reference Cage: Insert a check here to include vertical elevation axes and X and Y coordinate axes in the 3D diagram. Expand this item to set up the cage options. (More.)
Step-by-Step Summary
- Access the RockWorks Utilities program tab.
- Open a data file that contains a listing of bitmap image names and their lower-left and upper-right real-world coordinates. These could be, for example, scanned images of 2D seismic or ground penetrating radar sections.
- Select the Imagery | Vertical Images -> Color Model menu option.
- Enter the menu settings as described above.
- Click the Process button to continue.
The program will read the indicated bitmap image(s), and assign them the indicated coordinates in 3D space. It will then sample the image pixels at the requested intervals, storing the XYZ coordinate for the pixels and the color in memory.
It will then interpolate a solid color model using these sampled points. The resulting color model will be stored with an .RwMod file name extension in the project folder.
If you requested a diagram, the model will be displayed in a RockPlot3D tab in the Options window, using the actual Windows colors stored in the model.
- You can adjust any of the menu settings along the left (such as color or sampling interval) and click the Process button to regenerate model and 3D image.
! Each time you click the Process button, the existing model and display will be replaced.
! The color modeling process can be SLOW. If the color model looks OK and you just need to adjust one of the diagram settings, you don't need to keep re-interpolating the model. Choose Use Existing Model and browse for the .RwMod file to be used for the 3D view.
- View / save / manipulate / print / export the image in the RockPlot3D window.
Back to Imagery Menu Summary
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