Tutorial: Display Multiple Bargraph Logs in a 2D Cross-Section

Estimated time: 8 minutes.

In this lesson, you will be creating an image representing the benzene I-Data measurements in multiple logs in the Samples project, selected along a multi-log cross section trace. You will also add simple correlations panels.

1. Be sure all of the boreholes in the project are enabled by clicking on the Edit | Enable All Boreholes menu option or toolbar button.
   
2. Click on the Striplogs menu, and then click on 2D Striplog Section. (What's the difference between "profiles" and "sections"? Click here.)
   
3. Establish the section options: These are found in the Main Options tab of the Striplog Section window.
   • Vertical Exaggeration: This should be set to 1. In your own work, if your project area is large but your logs are shallow, this is a means of setting a vertical stretch for the section, before it's created, so that the border annotation is scaled well.
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   • Striplogs: Click this tab to confirm that none of the sub-options are checked.
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   • Log Spacing: Click here and be sure that this is set to Distance between Collar Locations.
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   • Hang on Datum: Uncheck this.
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   • Annotation: Check this. These options determine text and lines that will plot around the perimeter of the profile. Click on this tab to view the options; the factory defaults should be fine. See Restore Default Settings if you need more information about setting the factory defaults.

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   • or Surface Profile: If you completed the borehole map section of the tutorial (jump back), insert a check in the Surface Profile option. This is used to display a selected surface in the cross section plot. If you DID NOT complete that lesson, leave this un-checked.
     • Click on this tab to access the Surface Profile options.
     • Grid Model: Click on the browse button to the right of the prompt and select the .RwGrd file representing the ground surface, named Surface.RwGrd and click the Open button.
     • Polyline Attributes: Click this tab to define the line's appearance.
       • Line Style & Color: Click here to set the line style to red, medium thickness.
       • Smoothing factor can be set to 1.
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   • Faults: Unchecked.
   • Infrastructure: Unchecked.
   • Other 2D Files: Unchecked.
   • Peripherals: Unchecked.
   • Border: Unchecked.
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   • Output Options: Use these settings to determine whether the diagram is to be displayed, saved in advance, and/or exported.
     • Display: Checked.
     • Save: Unchecked. We will save the diagram in the viewer.
     • Export: Unchecked.
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4. Now let's move to the top of the window to adjust the log and section location settings.
   • Spatial Filtering: off
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   • Time Filter: off
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   • Strat Rules: Defaults will be fine here since we are not plotting any stratigraphy data.
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   • Click on the 2D Log Design tab where you will establish the striplog options.

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     The program will display the 2D log designer window. This window has three main sections:

     • The left pane is where you choose what type of data is to be displayed in the logs (the visible items).
     • The upper-right pane is where you see a Preview of the active log items. You can drag the items to adjust their relative placement.
     • The lower-right pane displays specific Options for the visible item that you click on.

     a. Choose the items you want to see in the logs by inserting a check-mark in the following items in the left pane:

     • Title: The drill hole name will plot above the logs.
     • Depths: The logs will be labeled with depth tick marks and labels.
     • I-Data: I-Data #1: The logs will contain a column illustrating I-Data values as a bargraph down the log. Note that you can activate up to 4 I-Data columns.
     • None of the other options, including Text, should be checked.

     b. Adjust the arrangement of the visible log items: You should see four items in the upper Preview pane: title, depth bar, log axis, and I-Data.

     • Practice clicking on an item, holding down the mouse button, and dragging it to the left or right in the preview.
     • Try getting the items aligned in the following order:

     

     ! Note that the log axis is always activated - it acts as the anchor point for the log. The axis will be placed at the actual log location in the diagrams. The log title is always placed atop the axis.

     c. Check the options for each visible item by clicking on the item's name in the listing; its options will be displayed in the Options pane.

     • Click on the I-Data #1 item.

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     • Track: Click to the right and choose Benzene Soil as the data to be displayed in the logs.
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     • G-Value Filter: Unchecked.
     • Resample: Unchecked.
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     • Column Layout: Click this tab.
       • Width: Set this to 2.
         ! All log item sizes are expressed as a percent of the dimensions of the project, so the width of these logs will be about 2% of the project dimensions.
       • Subdivisions: Uncheck this.
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     • Scaling: Click this tab and be sure Automatic is selected.
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     • Fill Options:
       • Fill Style: Choose Monochrome with a color of blue.
       • Direction: Look for this heading in the Options pane.
       •   Left-to-Right: Choose this option.
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   • Location Map: Find this tab to the right of the 2D Log Design tab. Check this item. This will create a small map that shows the location of the section in the study area. Click on this tab to check:
     • Map Overlays: Checked.
       • Borehole Locations: Checked.
     • Output Options: Click this tab at the bottom of the window.
       • Append Map to Diagram: Click in this radio button. Be sure the Size setting is set to Medium.
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   • Next, pick the boreholes to display.
     • Click on the Section Location tab.

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     • If you don't see the section trace pictured below, follow these steps; otherwise jump to #5 below.
     • Click on the Clear button at the top of the panel-picking window. The program remembers your cross section traces from session to session; this will clear any old traces from memory.
     • Next, locate the hole titled DH-17 (toward the upper-left) and click on it. It will be marked with a red X.
     • Locate hole DH-03 southeast of DH-17 and click on it. A line will be drawn between the holes.
     • Locate hole DH-21 southeast of DH-03 and click on it.
       ! If you make a mistake, click the Undo button to undo the last pick or the Clear button to clear the slate for starting over.
     • Click on DH-40, DH-41, and DH-07 continuing the cross section southeastwardly through the project area.
     • You should see a trace like this:

     

5. Click the Continue button at the bottom of the window when you are ready to create the log section plot.

   The program will create strip logs of each of the selected borings using the selected settings. The logs will be spaced proportionally to their distance from each other on the ground.

   In addition, it will create a map that displays the location of the section slice within the study area. The completed log section + map will be displayed in a RockPlot2D tab, where 2-dimensional maps and other diagrams are presented.

6. Adjust the Vertical Exaggeration: The VE notation, in the upper toolbar, is still shown at 1, meaning that the section's length (horizontal) and elevations (vertical) are being plotted at the same scale. In your own work, you may find that your distance and depth units aren’t so agreeable, and you’ll need to apply some stretch to your images to get a good look.
   1. You can use either the Stretch button to fill the screen at whatever scales, or
   2. You can adjust the vertical stretch specifically by clicking on the VE button (or choosing View | Vertical Exaggeration) and typing in a desired value. Values > 1 will stretch the image; values < 1 will flatten it.
      ! Maps embedded within cross-section displays will be stretched/flattened also.
   3. Click on the VE button again at the top of the window to return the vertical stretch to 1.
      
7. Add a text label to the diagram: RockPlot2D includes the ability to edit the entities in the plot window.
   1. Choose the Draw | Point Types | Text menu option from the RockPlot2D menu.
   2. Click anywhere in the diagram window. The program will display the Text Attributes window.
   3. Caption: In this prompt, type in:   RockWare Project
   4. Font Size: Set this to:  10.
      ! As displayed here, the font size has been translated from percent-of-project size (which is used throughout most of RockWorks) to now represent the actual size of the text in diagram units, on the map. In this case, it means the text will be 15 "meters" tall.
   5. Color: Choose a color for the text.
   6. Click Apply at the bottom of the Attributes window. You should see the text now displayed in the diagram. You can continue to adjust settings, clicking Apply to apply these changes.
   7. Click Close to close the Text Attributes window.
      
8. Move the text label.
   1. Click on the Edit button in the upper toolbar.
   2. Click on the text label. When properly selected, you'll see square handles on each corner.
   3. Drag the label to another location in the image.
   4. Note that you can double-click on the label to retrieve the Text Attributes window, where you can modify the text, character size, color, etc.
      
9. Save this image for later work in the ReportWorks program, where you can create a nice layout of the log profile.
   1. With the diagram still displayed in the RockPlot window, choose File | Save, and type in the name:    Idata Log Section      and click OK. The program will save this image in its own .Rw2D file format.
   2. You can close this RockPlot window (x).
      
10. If you’d like to do the ReportWorks lesson at this time, click here. Another detour is to create a cross section with hole-to-hole interpolation panels, in the I-Data | Section | Hole to Hole Interpolation menu.
    
11. Otherwise, continue on with the I-Data diagram lessons, below.
    

See also: RockPlot2D tutorial

Displaying Multiple Logs in a 2D Hole to Hole Section

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