Use the Striplog I-Data check-box(es) to plot downhole interval data in the 3d log. Several display styles are offered. Up to 4 I-Data columns can be included in each log. The data is read from the I-Data table in the Borehole Manager database. When you click on the I-Data items in the layout window you’ll see the following settings in the pane to the right. The settings for each column can be established independently.
- Track: Click here to select which column of values in the I-Data table you wish to plot for the selected I-Data Column (#1, #2, #3, #4). Each I-Data column you activate can read from a different track.
- Column Attributes
- Column title: Enter the text to be displayed above the column. If no title is desired, you can leave this field blank.
- Column Radius: The radius of the I-Data column is established as a percent of the output dimensions. As you click and drag to resize the column's purple circle icon in the Layout Preview at the top of the window, this setting will be updated. If you edit the radius via this prompt, the size of the column in the Preview will be updated.
- Column Offset
- Direction: This reflects the position of the column, relative to the log axis (center), with 0 = north, 180 = south, and so on. As you click and drag the I-Data column's purple circle icon in the Layout Preview pane (top), this value will be updated. Conversely, if you edit the azimuth direction in this prompt, the Preview will be updated.
- Distance: This represents the distance of the I-Data column center from the log axis (center), expressed as a percent of the output dimensions. As you reposition the column's circle icon in the Layout Preview pane at the top of the screen, this value will be updated. And, as you edit the offset distance here, the Preview will be updated.
- Scaling: Click this tab to define how the range of data is plotted within the available column width.
- Automatic: RockWorks will scan the range of values in the specified Track for all of the active boreholes, thus determining the project’s minimum and maximum interval-data values sampled. It will then assign the inside of the I-Data column to the project’s minimum value and the outside of the column to the project’s maximum. Benefits: If you are plotting multiple boreholes, this assures that the data is plotted at the same scale in all logs.
- Manual: You can establish the I-data value to correspond to the minimum and maximum edges of the column. Let’s say, for example, that your contaminant values in all wells ranged from .05 to .9, you might want to set the Minimum to 0 and the Maximum to 1. Use the Clip setting to cut off any bars that exceed the column maximum.
- Table Based: Choose this option if you want the bars to be scaled as defined in a table that you've created. This can be very valuable to highlight anomalies.
- ! Note that the plotting direction, established below, determines which edge of the column is assigned the minimum value and which is assigned the maximum.
- Uniform Radius (no scaling): Choose this for the I-Data values to be scaled the same, resulting in a smooth cylinder for the column. This assumes that you will use a color scheme, defined below, to distinguish the samples.
- Logarithmic: Check this to plot the natural logarithms of the I-data values.
The following 3D diagrams illustrate the usefulness of this capability. In the upper-left diagram, the logarithmic option is disabled. Two of the logs contains some very high values. As a consequence, the variations within the low values in the other logs is virtually indistinguishable. The logs in the lower-right diagram are logarithmically scaled. Notice how the variability within the lower ranges become readily apparent. For example you can tell the difference between a low value and a missing sample (i.e. a black axis line).
- Appearance
- Plot Interval Labels: Check this to display a label for each measurement down the log. Be warned that hundreds of value labels can slow down the rendering of the log display in RockPlot3D. Define the number of decimal places you want for the labels.
- Color
- Choose Monochrome to fill with a solid color. Click the color box to select the fixed color.
- Choose Cold to Hot Colors to fill the bars with color that will vary based on the I-Data value at that point (low values in cold colors, high values in hot colors).
- Table Based: Choose this option if you want the bars to be colored as defined in a table that you create. This can be very valuable to highlight anomalies.
- Table name: Click to select the name of the color-fill table to be used to color the log tubes or cylinders.
- Shape
- Tubes will look the most like "regular" bargraphs in 3D. Tube length is determined by the magnitude of the I-Data value. These can be plotted effectively with other strip log items (lithology, stratigraphy, etc.)
- Cylinders: Cylinder radius will be scaled based on the I-Data value magnitude, and the cylinder's height is determined by the sampling interval. Cylinders are centered on the I-Data column axis.
- Spheres: The radius of the spheres will be based on the I-Data value magnitude. Spheres are centered on the I-Data column axis.
- Oblates: This will display the I-Data values as an oblate ("squashed") sphere in 3D logs. The oblate's radius will be determined by the data value and the oblate's height by the sampling interval. Oblates are centered on the I-Data column axis.
- Miscellaneous Options for settings that establish the font size and offset for the column title and caption labels, activate horizontal and/or vertical divider lines, etc.
Back to 3D Striplog Options
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