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iMOD User Manual version 4.4 (html)


7.1Cross-Section Tool

WHY?
The Cross-Section Tool can be used to display cross-sections over a variety of data types, such as IDFs, IPFs with associated files (e.g. boreholes and timeseries) and IFFs (flowlines).

WHAT?
The Cross-Section Tool allows you to draw any line (Cross-Sectional Line) that will intersect the cells of any of the selected IDF-files. The IDF cell value in-between two raster cell intersections will be assigned to the cross-section points (the midpoints). Consequently, the distances between different points of a cross-section can vary, especially in case the Cross-Sectional Line is chosen to be diagonally.

IPF points and/or IFF lines, can be projected perpendicular on the Cross-Sectional Line within a chosen viewing depth. Bear in mind that breakpoints can cause points and/or lines to be projected twice (in the inside) or not at all (in the outside). For points, the nearest line will be used to be projected upon. Moreover, points that are too close to each other will become narrower, this can be overruled.

Methodology used by the Cross-Section Tool:

pictures/h5/image531.png

HOW?
To start the Cross-Section Tool select Toolbox from the main menu, choose Cross-Section Tool. Alternatively you can select the Cross-Section Tool icon pictures/h5/image512.png from the main toolbar. In both cases, all the selected files in the iMOD Manager will be activated in the Cross-Section Tool. The order in which these files are arranged, might affect the way they are displayed. The Cross-Section Tool consists of two windows: Draw Cross-Section window and the iMOD Cross-Section CHILD window.

Draw Cross-Section window:

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Zoom In
Click this button to zoom IN on the centre of the current graphical dimensions. Note All adjustments in the zoomlevel on the Graphical Area will be used whenever you leave the Cross-Section Tool again.


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Zoom Out
Click this button to zoom OUT on the centre of the current graphical dimensions.


pictures/h1-h3/zoomprevious.png

Go Back to Previous Extent
Click this icon and the map will return to the previous map extent and view. This view becomes the last view automatically whenever any other zoom button will be used.


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Go to Next Extent
Click this icon and the map will go to the next extent viewed after the current view. This option becomes available whenever the Zoom to Previous Extent button has been selected priorly.


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Zoom Rectangle
Click this button to zoom in for a rectangle to be drawn. Use you the left-mouse button to determine the lower-left corner of the rectangle, click again for the upper-right corner (or vice-versa).


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Zoom Full
Click this button to zoom in on the entire extent of the selected maps on the tab Maps on the iMOD Manager or on the selected overlay Maps in the tab Overlay on the iMOD Manager.


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Move
Click this button to move the current display. Click the left-mouse button on that location where you want to move from, repeat this after the display has been refreshed (automatically). Use the right mouse button to stop the moving process.


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Draw Line of the Cross-Section
Click this button to draw the line of the cross-section on the Graphical Area on the Draw Cross-Section window. Click the left-mouse button to define the first point of the line and click this left-mouse button to insert intermediate points, if desired. Click the right-mouse button to stop the line drawing. If you’ve defined one point only, the last location will be added to the line, in other cases this last point will not be used! The used coordinates can be displayed on the cross-sectional view and/or within the Cross-Section Properties window. The line of the cross-section may consist of 250 points, maximally.

Note iMOD intersects the cross-section line with the raster cellvalues of the IDF-files. Since different IDF-files may be used (constant- and variable rastersizes), each cross-section can have different results at the intersections. After the intersection, iMOD determines the IDF values for the midpoints that are in the centre between two intersection points. Due to this, diagonal lines may display cross-sections with jagged lines.

Example of cross-sections that are jagged. This jagging can be avoided by selecting the Skip short intersections to avoid the jagging option on the IDFs tab on the Cross-section Properties window, see Section 7.1.1.

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Cross-Section Properties
Click this button to open the Properties window (see Section 7.1.1).


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Cross-Section Legend
Click this button to open the Adjust Legend window (see Section 6.6.1).


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Flip Cross-Section
Click this button to “flip” the current Cross-Section


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Cross-Section Movie
Click this button to open the Movies window.

Cross-Section Movie window:

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Complete Backward
Click this button to move the Cross-Section line to the utmost left (X direction) or utmost top (Y-direction) coordinate of the current extent of the graphical window.


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Fast Backward
Click this button to move the Cross-Section line against the X- or Y-direction, repeatedly with the chosen Step.


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Single Backward
Click this button to move the Cross-Section a single step against the X- or Y-direction.


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Stop
Click this button to stop the actions Fast Backwards or Fast Forwards.


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Single Forward
Click this button to move the Cross-Section a single step along the X- or Y-direction.


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Fast Forward
Click this button to move the Cross-Section line along the X- or Y-direction, repeatedly with the chosen Step


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Complete Forward
Click this button to move the Cross-Section line to the utmost right (X direction) or utmost bottom (Y-direction) of the current extent of the graphical window.

X-direction
Y-direction

Choose one of the directions in which the line of the cross-section moves.

Step (m)

Insert the interval in meters for which the line of the cross-section moves repeatedly in the selected directory (X-direction or Y-direction).


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Snap Coordinates
Click this button to “snap” the coordinates of the Cross-Section to the coordinates in the selected IPF-file. This functionality is therefore only available whenever an IPF is selected.


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IPF-info
Click this button to open the IPF-Info window, see Section 6.8.3.2.

Graphical
Display

This presents the display from the Main iMOD window. Anything that has been drawn before entering the Cross-Section Tool will display here. In this area you can specify the location of the Cross-Section. The location will appear as a black line. When you move the mouse in this Graphical Area your current coordinates will be displayed in the lower-left corner of the Cross-Section window.

Moreover, the following symbols might occur whenever you move the mouse near the Cross-Section line:


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Click your left mouse button and hold it, to move the entire Cross-Section line. Stop this by releasing the mouse button.


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Click your left mouse button and hold it, to move an individual node of the Cross-Section line. Stop this by releasing the mouse button. iMOD will update your cross-section immediately.

Click your right-mouse button anywhere on the Graphical Display to popup the following dropdown menu.

Popup menu:

target="_blank" >pictures/h5/image529.png

The functionalities are described in Section 2.6.3. The popup menu becomes available only when IDF-files are selected in the iMOD Manager.

Help ...

Click this button to start the iMOD Help Functionality.

Close

Click this button to close the Cross-Section Tool; the Draw Cross-Section and iMOD Cross-Section windows will also close.

iMOD Cross-Section window:

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Print
Click this icon to print the current Cross-Section on a printer.


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Export or Save As Demo …
Click this icon to export the current Cross-Section to a bitmap (*.JPG, PCX, PNG, BMP, EPS, PS), or an iMOD-demo in a new IMF-file or an ASCII-file (*.CSV). An example is given of the file format below, a new data-block starts for each IDF, since, the points of intersection might differ:

iMOD Cross-Section

- D:\IMOD-MODELS\IMOD\DBASE\ARNHEM\AHN_F100_SM_AZURE.IDF
X-COORD., Y-COORD., DISTANCE, Z
(meter), (meter), (meter), (???)
189990.938, 439485.750, 0.000, -999.9900
189990.938, 439485.750, 0.000, -999.9900
189995.469, 439485.866, 4.533, -999.9900
190050.000, 439487.261, 59.082, 9.772500
190150.000, 439489.820, 159.115, 9.736249
...
- D:\IMOD-MODELS\IMOD\DBASE\ARNHEM\TOP_SDL01.IDF
X-COORD., Y-COORD., DISTANCE, Z
(meter), (meter), (meter), (???)
189990.938, 439485.750, 0.000, -999.9900
189990.938, 439485.750, 0.000, -999.9900
189995.469, 439485.866, 4.533, -999.9900
190050.000, 439487.261, 59.082, 9.700000
190150.000, 439489.820, 159.115, 9.700000
190250.000, 439492.379, 259.147, 10.08000
190350.000, 439494.938, 359.180, 9.920000
...


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Copy to Clipboard
Click this icon to copy the current Cross-Section to the windows Clipboard. Use the shortcut Ctrl-C , alternatively


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Zoom Full
Click this button to zoom in on the entire extent of the Cross-Section.


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Zoom Rectangle
Click this button to zoom in for a rectangle. Use the left-mouse button to determine the lower-left corner of the rectangle, click again for the upper-right corner (or vice-versa).


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Zoom In
Click this button to zoom IN on the centre of the current Cross-Section.


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Zoom Out
Click this button to zoom OUT on the centre of the current Cross-Section.


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Move
Click this button to move the current Cross-Section. Click the left-mouse button on that location where you want to move from, repeat this after the display has been refreshed (automatically). Use the right mouse button to stop the moving process.


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Cross-Section Inspector
Click this icon to identify the values for each IDF at the selected position in the cross-section. You can move the mouse-cursor over the cross-section and the IDF values for each selected IDF will be displayed in the Map Value window. The position of the mouse will be displayed on top of the Map Value window (e.g. Current Loc. “X=196102 m Y=439658 m Z=-19.14” ). The Cross-Section Inspector can be closed by clicking the left-mouse button or select the Close button on the Map Value window.

Example of the Cross-Section Inspector option:

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Add a bitmap as background
Click this icon to select a BMP, PCX, JPG, PNG-file to be shown as background map. This could be a profile prepared outside iMOD with other graphical tools. Whenever the selected bitmap is large (more than 1000 pixels along the row or column direction), iMOD can resize the image to a smaller image with a maximum dimension of 1000 pixels along the row and column direction.

Question window to resize the selected image

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Whenever the Profile Tool is started via the Solid Tool (see section Section 7.4, the position and background bitmap will be saved in the SPF file, see section Section 9.22. The bitmap will be added to the cross-section. Next the position and size will have to be set in the cross-section using the mouse. Move your cursor on to the bitmap and you will see it change in: pictures/h5/image601.png. Click your left mouse button and move the bitmap. Move your mouse to the edge of the bitmap, you will see it change and move the edge. Repeat this until your bitmap fits the iMOD cross-section. The position of those bitmaps will be save in a SPF file (Section 9.22) that is used by the Solid Tool (Section 7.4).

Example of an iMOD Cross-Section with borehole information showing sub-surface layers added as background:

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Example of an iMOD Cross-Section with seismic information showing sub-surface layers added as background:

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Whenever the right-mouse button is clicked on the graphical canvas of the Cross-Section window, the following floating menu appears:

Floating Menu to modify bitmaps

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Change Label[name]
This is described and applicable from the Solid Tool, see Section 7.4

Add Knickpoint
Select this option to include a knickpoint on the selected cross-section. The knickpoint will be added to the cross-sectional line and displayed as a vertical dashed line. The actual position in 2-D can be modified on the Cross-Section window. It is possible to assign a labelname to the knickpoint, which can be modified via the Cross-Section Properties window on the Coordinates tab.

Example of the window to add a label to a knickpoint

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Select Nodes, Activate Current Interface, Deactivate Current Interface, Draw Lines as Splines
These are described and applicable from the Solid Tool, see Section 7.4

Open Background Image …
Click this option to select a BMP, PCX, JPG, PNG-file to be shown as background map, it has the same functionality as described at Add a bitmap as backgroundpictures/h5/image544.png )

Remove Background Image …
Click this option to remove the bitmap as background map, the image will be removed from memory but not from the disk.

Hide Background Image
Click this option to hide the bitmap as background map temporarily. After this option has been selected the menu string changes to Unlock Background Image which can be selected again to undo the locking.

Lock Background Image
Click this option to prevent the bitmap for modifications, such as size and position. The mouse will not respond to the appearance of the bitmap. After this option has been selected the menu string changes to Unhide Background Image which can be selected again to show the bitmap again.

Flip Horizontally
Flip Vertically
Click this option to flip the bitmap horizontally or vertically. Note If agreed, the flipped image will overwrite the original file.

Question window to overwrite the original bitmap file.

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Legend
Click this icon to display the Profile Legend window. This window displays the file names of the IDFs, which can be adjusted in the Cross-Section Properties window. The legend for each of the items in the Cross-Section can be displayed on the iMOD Cross-Section window too by selecting the Legend column for each individual IDF entry, see Section 7.1.1.

Cross-Section Legend window:

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Note: Whenever you move the cursor over the Draw Cross-Section window, the coordinates are displayed in the lower-left corner of the iMOD Cross-Section window, see in the next figure the values “X: 184060 m; Y: 442208 m”. Moreover, your position in the cross-section will be displayed in the Draw Cross-Section window as a small circle on the line for the cross-section. Below is an example that shows the mouse is positioned at “9439m” from the origin and the vertical position is “-44.37”.

Example of cursor location in the Cross-Section Tool:

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7.1.1Properties

Click the option Cross-Section Properties pictures/h5/image548.png on the Draw Cross-Section window to open the Cross-Section Properties window. The properties are grouped for each filetype in the Cross-Section (IDFs, IPFs and/or IFFs) and their corresponding tabs become available when the file type is present in the Cross-Section.


7.1.1.1IDFs tab:

This section describes the functionalities on the IDFs tab on the Cross-Section Properties window.

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The display mode of the IDFs is defined in the table. Several quick display configurations are available for layer models.

Note: The first row of the table can be used to quickly change the values for all rows in the table.

Act

Select the checkbox in this column to present the corresponding IDF in the cross-section.

Screen

Number of Graphical Windows (screens 1-50) for display; e.g. you can specify a separate Graphical Window (screen) for each IDF entry. All of those screens are synchronized, which means that all zoom and/or pan actions will be carried out for all screens, simultaneously. This option allows to split a series of IDF entries to be plotted on separate screen/window. The screens need to have unique values, e.g. screen 1 and 4 yield two different screen, just as an entry of 1 and 2 would. It is also possible for the loaded IPFs, see Cross-Section Properties window, IPFs tab.
Note Modified settings are saved to the corresponding IDF file, so whenever the Cross-section Tool is re-entered, the screen setting are still valid. Closing a “child-window” or main Cross-Section window will both terminate the Cross-section Tool.

Example of using multi-screens to display the cross-section:

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Label

Insert a text for a label that is used for the legend.

Col…
(Colour)

Displays the colour used to display the Cross-Section for each IDF. Select the column to open the Colour Picking window to change the colour accordingly.

Line

Select the checkbox in this column to present the cross-section as solid lines.

Example of cross-section using the Line option

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Point

Select the checkbox in this column to present the cross-section as individual points.

Example of a cross-section using the Point option

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Fill

Select the checkbox in this column to present the cross-section as a filled area. The cross-section is bounded by the surfacelevel at the top, and the minimum z-value of the cross-section at the bottom. It is important to know that IDFs with lower z-values will be “painted” over by IDFs with higher z-values, whenever the IDFs with higher z-values appear below the IDFs with lower z-values in the iMOD Manager.

Example of a cross-section using the Fill option:

pictures/h5/image554.png
Note Alternative to the Fill option, IDF-files can represent “voxels” have top- and bottom information stored internally (see Section 9.5). If those IDF-files are used, the internal IDF value per cell (e.g. permeability) will be coloured (using the associated legend) between the stored top and bottom elevation inside the IDF.

Example of a coloured plot of IDF with internal top and bottom elevations:

pictures/h5/image563.png

Clr

Select the checkbox in this column to present the cross-section as filled surfaces coloured by the values of the IDF-file. It uses the previous- and next IDF to determine the top- and bottom boundaries of the filled area. Whenever you choose this option, the Act option is selected for the previous and next IDF, automatically. e.g. use this option to display different information such as heads, transmissivities between boundaries of aquifers/aquitards. This can be done more easy using the Configuration settings.

Example of a cross-section using the Clr option

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1/T

Select the checkbox in this column in combination with the option Clr, to divide the value of the IDF by the thickness.

Leg

Select for each entry whether the corresponding legend need to be plotted.

Map

Displays the IDF-filename. You can not adjust this field.

Configuration

The drop down list displays several predefined configurations of all above mentioned settings for Act, Col, Line, Point, Fill, Clr and Leg. Select an option from the drop down list to display the layers in a predefined display mode.

Interfaces
Select this option to display all IDFs separately as line interfaces, each entry receives an unique colour.

Example of Line representation

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Quasi 3-D Aquitard
Select this option to display the aquifer in yellow and the aquitard in a contrasting colour. The space underneath the lower most interface will be grey coloured. The order of the IDF files need to be top- and bottom of each model layer.

Example of Quasi 3-D Aquitard representation

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Quasi 3-D Aquifer
Select this option to display the aquitard in grey and the aquifer in a contrasting colour. The space underneath the lower most interface will be grey coloured. The order of the IDF files need to be top- and bottom of each model layer.

Example of Quasi 3-D Aquifer representation

pictures/h5/image558_aquitard.png

3-D Model
Select this option to display both the aquifers and aquitard in contrasting colours. The order of the IDF files need to be top- and bottom of each model layer.

Example of 3-D Model representation

pictures/h5/image558_3dmodel.png

Coloured Quasi 3-D Aquitard
Select this option to display the aquifers coloured by the values of in between IDF-files, such as vertical resistances. The order of the IDF files need to be top model layer 1 and then for each aquitard the bottom of each model \(i\), e.g. vertical resistance and top of model layer \(i+1\).

Example of a Coloured Quasi 3-D Aquitard representation

pictures/h5/coloured_aquitard.png

Coloured Quasi 3-D Aquifer
Select this option to display the aquifers coloured by the values of in between IDF-files, such as transmissivity values. The order of the IDF files need to be top-, e.g. transmissivity and bottom of each model layer.

Example of a Coloured Quasi 3-D Aquifer representation

pictures/h5/coloured_aquifer.png

Coloured 3-D Model
Select this option to display the aquifers and aquitards coloured by the values of the IDF-file in between. The order of the IDF files need to be top-, e.g. transmissivity and bottom and e.g. vertical resistance of each model layer.

Example of a Coloured 3-D Model representation

pictures/h5/coloured_aquitard_aquifer.png

Block lines
Block Fills

Check the check box to display the cross-section with lines that connect the individual data points with horizontal lines as a “blocky”-structure.

Example of a “blocky” line and fill representation

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Linethickness:

Choose the linethickness to display the layer interfaces.

Example of a thicker line representation

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Max. no
of Samp.
Pnts.

Maximum number of sampling points used to construct the cross-section. By default this is 300. Especially for large cross-sections the processing time might be too long and to increase the performance, it is possible to decrease the number of sampling points. The size of the interval used to decrease the number of sampling points is displayed at the bottom of the graphical canvas of the Cross-section window.

Example of a decrease in sampling points

pictures/h5/cross_resample.png

Skip short Intersections, to avoid line jagging

Line jagging is caused by lines that intersect the IDF diagonally. Due to this, the cross-section is construction from long- and short intersections. Especially the short intersections might by cause line jagging. By selection this option iMOD will remove any intersection which is shorter than 75% of the root of the surface of the cell currently intersected.

Example of a “jagged” representation

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Example of an “unjagged” representation

pictures/h5/cross_unjagging.png

Plot lines
in black on top of profile

Check the box to plot the lines in black on top of the drawn profile, e.g. to be able to distinguish multiple aquifers when in-between aquitards are unavailable.

OK

Click this button to accept any changes; the Cross-Section Properties window is closed.

Help…

Click this button to start the iMOD Help Functionality.

Close

Click this button to close the Cross-Section Properties window, without any changes to the properties of the cross-section.


7.1.1.2IFFs tab:

This section describes the functionalities on the IFFs tab on the Cross-Section Properties window.

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Act

Select the checkbox in this column to include the IFF in the cross-section. The example below shows a cross-section presenting an IFF-file (flowpath) in combination with IDF-files that represent the top and bottom of aquitards. The distance for which particles are projected on the cross-sectional line can be assigned in the Misc tab on the Cross-Section Properties window.

Example of a Cross-Section showing flow lines from an IFF file:

pictures/h5/image565.png

Screen

Number of Graphical Windows (screens 1-50) for display; e.g. you can specify a separate Graphical Window (screen) for each IFF entry. All of those screens are synchronized, which means that all zoom and/or pan actions will be carried out for all screens, simultaneously. This option allows to split a series of IFF entries to be plotted on separate screen/window. The screens need to have unique values, e.g. screen 1 and 4 yield two different screen, just as an entry of 1 and 2 would.

Colour

Select this checkbox to colour the lines according to the selected legend and item as specified in the IFF Configure window, see Section 6.9.1. If this option is deactivated, the flow lines will be coloured by the single colour assigned to the IFF file (see also Section 6.9.1).

Example of a Cross-Section showing flow lines in a single colour:

pictures/h5/iff_single_colour.png

Arrows

Select “Yes” or “No” from the drop down menu to invoke arrow at the end of flow paths.

Example of a Cross-Section showing flow lines without arrows:

pictures/h5/iff_noarrows.png

Map

Displays the IFF filename. You can not adjust this field.


7.1.1.3IPFs tab:

This section describes the functionalities on the IPFs tab on the Cross-Section Properties window.

pictures/h5/image566b.png

Act

Select the checkbox in this column to include the IPF in the cross-section. Beside the option to display boreholes via the associated text-files, it is also possible to make a cross-sections for the other types of associated files, such as time series and borelogs.

Example of a cross-section with time series in depth.

pictures/h5/cross-section-timeseries.png

Example of a cross-section with borelogs.

pictures/h5/cross-section-logs.png

Screen

Number of Graphical Windows (screens 1-50) for display; e.g. you can specify a separate Graphical Window (screen) for each IPF entry. All of those screens are synchronized, which means that all zoom and/or pan actions will be carried out for all screens, simultaneously. This option allows to split a series of IPF entries to be plotted on separate screen/window. The screens need to have unique values, e.g. screen 1 and 4 yield two different screen, just as an entry of 1 and 2 would.

Example of a separate screen to display the boreholes from an IPF.

pictures/h5/cross-section-separate-ipf.png

Z-Attribute

This is the attribute in the IPF-file that will be used to position any label. In case time series are presented, this attribute value is used too. For others (boreholes, borelogs) this value is irrelevant.

Ass-Files

Select this checkbox to use the associated file of the IPF. These can be timeseries, boreholes and/or borelogs. If this is deactivated, the associated information is not displayed, the location from the IPF is plotted instead as configured in the IPF Configure window, see Section 6.8.

Example discarding the associated files.

pictures/h5/cross-section-top-bottom.png

Map

Displays the IPF-filename. You can not adjust this field.

Configure:

Select this button to set the configuration for the IPF-file selected in the dropdown menu. It starts the Define Label to be Plotted window, see Section 6.8.2.

Select label to Plot at Selected Location

This dropdown menu allows you to set the location of the labels of the boreholes.

Example of labels plotted at the boreholes.

pictures/h5/cross-section-labels.png


7.1.1.4Coordinates tab:

This section describes the functionalities on the Coordinates tab on the Cross-Section Properties window.

pictures/h5/image568b.png


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Open
Click this button to use the coordinates from an existing GEN-file.


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Save As
Click this button to save the current coordinates into a GEN-file format.


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Flip Coordinates
Click this button to “flip” the coordinates, the first becomes the last, and vice-versa.

Plot Coordinates
Cross-Section

Select this option to display the coordinate of the line of the cross-section within the graph of the cross-section.

Example of a cross-section with coordinated plotted of the individual points along the cross-section

pictures/h5/cross-section-coordinates.png

Show Coordinates with Labels Only

Select this option to only display the coordinates with a label within the graph of the cross-section.

Clean...

Start a window in which a value can be specified for the minimal distance that needs to be between coordinate points. The points in a profile will be depleted; points that are closer to each other than the given distance will be removed.

Enter a value window

pictures/h5/cross-section-clean-coordinates.png


7.1.1.5Misc tab:

This section describes the functionalities on the Miscellaneous tab on the Cross-Section Properties window.

pictures/h6-h71/cross_section_properties_borecolval.png

Fix X-axis

Select this checkbox to specify the dimensions of the X-axis.

Minimal/maximal X:

Enter the minimal and maximal values for the X-axis.

Interval:

Enter the interval of the X-axis.

Fix Y-axis

Select this checkbox to specify the dimensions of the Y-axis.

Minimal/maximal Y:

Enter the minimal and maximal values for the Y-axis.

Interval:

Enter the interval of the Y-axis.

Apply Scale Ratio:

Chose the preferred x,z-scale ratio from the drop down-menu or enter a ratio-value in the given field. The ratio is shown on the graph. See figure below for an example of the cross-section window with adjusted ratio.

Fade

Select this option to fade-out the colouring for IPF (points) and/or IFF (lines) whenever they appear at more distance from the line of the cross-section. The fading is linear with the distance up to white at the exact border of the entered view depth.

Example of fading out points that are more distant from the cross-sectional line.

pictures/h5/fade_out_boreholes.png

View depth

Enter the distance perpendicular on the line for the cross-section for which points (IPF) and/or lines (IFF) are projected perpendicular on the line of the cross-section. This is the distance on both sides of the line. The total areas will be twice as wide as given. This “area” is displayed as a red rectangle around the drawn line for the cross-section.

Example of the Viewing Depth:

pictures/h5/image572.png

Refresh IPF during panning:

Select this option if you have a small borehole IPF dataset. This option forces iMOD to refresh the cross-section view when you move your window extent (=panning). Deselect it whenever the data set is large since this will delay the drawing significantly.

Refresh IFF during panning:

Select this option if you have a small pathline IFF file. This option forces iMOD to refresh the pathline view when you move your window extent (=panning). Deselect it whenever the data set is large since this will delay the drawing significantly.

Legend

Select this option to display a legend on the graph

Plot Survey
Cross-section

Select this option to display a 2-D map of the location of the cross-section. It is possible to modify the size and position of this 2-D map interactively. Select with your mouse the border of the 2-D map and drag them to increase of decrease the size of the 2-D map. Move your mouse into the centre of the 2-D map to move the 2-D map around.

Example of the Survey Plot

pictures/h5/cross-section-2dplot.png

Minimal IPF Column Thickness (0-1):

Select this option to set a minimal Column thickness of the boreholes. Whenever multiple boreholes occupy the same location on the cross-section iMOD decreases the width of the borehole such that they all fit on that similar location. To prevent boreholes to thin out completely, iMOD can apply a minimal borehole thickness. This prevents iMOD from hiding a certain borehole completely when it is at the same location as another borehole in the display window.

Plot values selected column left of borehole:

Select this option to plot the values of the defined column (e.g 26) in the IPF associated file at the left side of the borehole in the Cross-section plotting window.

Plot values selected column right of borehole:

Select this option to plot the values of the defined column (e.g 28) in the IPF associated file at the right side of the borehole in the Cross-section plotting window. The actual text size is defined at the Define Labels to be Plotted window, see Section 6.8.2.

Example of the plotting window with the values of the defined columns (from the associated text file) plotted next to the borehole:

pictures/h6-h71/cross_section_plot_borcolval.png


7.1.1.6Colouring tab:

This section describes the functionalities on the Colouring tab on the Cross-Section Properties window.

The table on this tab is used to display the boreholes that might be associated with the selected IPF-files. On default the file: {user}\settings\DRILL.DLF will be read.

pictures/h5/image573b.png

IPF file:

This dropdown menu shows the IPF-files that are currently available in the IPF Analyse. For each IPF-file a different legend can be defined by making use of the Legend: dropdown menu.

Legend:

This dropdown menu allows you to select and/or define a different legend per available IPF-file.


pictures/h5/image574.png

Open
Click this button to open a *.DLF-file


pictures/h5/image575.png

Save As
Click this button to save the current legend into a DLF file format

Label

Associated label to the specific Legend attribute.

Clr

Associated colour to the specific Legend attribute.

Description

Associated description to the specific Legend attribute.

Width

Adjustable width of the borehole unit related to the specific legend attribute. If differences in width are defined between the layers this is visible in the cross-section of the boreholes (see figure below).