Main Page
Structural Geology Main Page
Cauldron Manual Main Page

Enter Tab Functions


Enter tab controls
  1. Enter Tab: general remarks
  2. Select Format (shown above with "direction angle direction")
  3. Select Data Type (Shown above with "1:point")
  4. Select Colour (lower)
  5. Select Colour (upper)
  6. Select Colour (paint)
  7. Visible
  8. Mark Number
  9. Set Number
  10. Remark
  11. Dip
  12. Bearing/Strike
  13. Direction
  14. Direction 2
  15. Overturned (upper hemisphere)
  16. Weight
  17. Enter
  18. Delete Last

Enter Tab: General Remarks

 The enter tab contain functions used to enter data by keyboard and mouse entry. Data can also be entered by clicking on the paint box or by using functions found under the File Tab.

Return to Top

Select Format

 The topmost menu box on the 'enter' tab selects the format used for entering direction in which the structure dips. This concept of format is entirely concerned with the way that you enter your data, it is not remembered once the input is interprested. Depending on the fomat selected various objects on this page will apear or disappear. The formats are:
  1. Bearing of Pole: Here the bearing entered in the bearing/strike box is taken to mean the bearing of a linear structure, the bearing of the pole to a plane or the bearing of the axis of a cone (centre of a small circle). Using this option the 'strike' box is relabled 'incl' meaning the inclination from the horizontal. This option is recommended if you have planar data which you have recorded as poles, or you have linear features to record. Because it is assumed that we are dealing with poles to planes, the term 'dip' indicates angle to the vertical.
  2. Bearing of Dip This is the most common format when entering planar data. The bearing entered is the direction of the dip, (i.e. 180 degrees from the pole). This option is recommended if you have recorded you information normally as bearing and dips.
  3. Strike and Direction Often field proceedures with compasses mean that you record strike direction, dip and then the direction of the dip as a letter. For example, you might record "195 30 E", (this being the same as a dip of 30 to 105). Enter 30 as the dip, 195 in the bearing/strike box and tick east (south would also work) for the direction.
  4. Direction Angle Direction This is again a bearing and dip format. This option refers to the measuring of direction from one cardinal point, towards another. Thus a dip towards 70 degrees (a bearing taken clockwise from north) could be called either north 70 east or east 10 North. Under this option south 20 east represents a bearing of 160 degrees. To enter using this option, south would be checked as the 'direction' and east as 'direction 2', 20 would be entered as the bearing.
Note #1: The format is used for entry only -it is not subsequently stored with the data.
Note#2: The selection made here determines the visibility of the two 'directions' selectors below.
Return to Top

Select Data Type

 "Data type" is a characteristic, stored for each item of data, which determines whether the item is plotted as a point, a great circle or a small circle. This control sets a 'current value'. This is used when creating a new data item with the 'enter' button under the edit tab. It may also be used by other functions, such as those under the 'edit' tab.
Return to Top

Select Colour (lower)

 When a data point is drawn on the lower hemisphere of the plot, for example, when representing the pole to a bed that is not overturned, then this colour is used to draw the lines of the point. Similarly it is used to draw great circles on the lower hemisphere (where the pole is indicated to be on the lower hemisphere) and that part of small circles drawn on the lower hemisphere. This control sets a 'current value'. This is used when creating a new data item with the 'enter' button under the edit tab. It may also be used by other functions, such as those under the 'edit' tab.
Return to Top

Select Colour (upper)

 When a data point is drawn on the upper hemisphere of the plot, for example, when representing the pole to a bed that is overturned, then this colour is used to draw the lines of the point. Similarly it is used to draw great circles on the upper hemisphere (where the pole is indicated to be on the upper hemisphere) and that part of small circles drawn on the upper hemisphere. This control sets a 'current value'. This is used when creating a new data item with the 'enter' button under the edit tab. It may also be used by other functions, such as those under the 'edit' tab.
Return to Top

Select Colour (paint)

 Some mark types (for example mark type 3) employ a 'fill' colour-painting the inside of the mark. This control sets a 'current value'. This means that it is used not only whenever the enter button on this tab is used but when new points are created generally -e.g. when clicking on the plot circle or functions that create data under the 'edit' tab.
Return to Top

Visible

 Cauldron data may or may not be visible. Invisible data does not appear in the paintbox, on a print out and is not listed in the data list (under the edit tab). Control of the visibility is a tool to enable the creation of plots that only show a subset of the available data. In general, when creating new data you will wish to keep 'visible' checked. If you think that you have created invisible data by mistake, you can go to the 'edit' tab and use the 'toggle visibility' or 'make all visible' functions. This control sets a 'current value'. This is used when creating a new data item with the 'enter' button under the edit tab. It may also be used by other functions, such as those under the 'edit' tab.
Return to Top

Mark Number

 Points can be plotted using a variety of different 'marks'. Examples of the selected mark, using the colours selected for upper and lower hemispheres are draw in a small pane adjacent to the mark selector. Selecting the mark dictates the shape that will be plotted. The colours used will depend on the colour selection. Mark type and colours are remembered for each point. Size and line thicknesses are set globally. This control sets a 'current value'. This is used when creating a new data item with the 'enter' button under the edit tab. It may also be used by other functions, such as those under the 'edit' tab.
The mark is changed by clicking on an up or down arrow to the far left of the words "Mark Number". Doing this will change the number in the box (currently shown as the default 1) and the corresponding mark type will be drawn in the adjacent box.
In the graphic at the head of this page mark type 1 has been selected and this can be seen to correspond to a diagonal cross.
Return to Top

Set Number

 Cauldron 2 allows data to be grouped into sets, each with an identifying integer which each data point remembers. Set based operations can be found under the 'Sets' tab. This control sets a 'current value'. This is used when creating a new data item with the 'enter' button under the edit tab. It may also be used by other functions, such as those under the 'edit' tab.
Return to Top

Remark

 Each data point can be accompanied by a comment or remark. This control sets a 'current value'. This is used when creating a new data item with the 'enter' button under the edit tab.
Return to Top

Dip

 A numerical value must be entered here indicating the angle, in degrees, of the structure to the vertical or horizontal (as indicated).
Return to Top

Bearing/Strike

 A numerical value must be entered here indicating the direction that the structure faces (it's exact meaning depends on the format selection).
Return to Top

Direction

 If the format selection indicates that data is entered using the strike direction, then additional information is required by the program to determine which is the dip direction. Where the 'angle direction angle' format is used, then this selection represents the first angle.
Return to Top

Direction 2

 This selection is required only for the 'angle direction angle' format. It gives the second direction.
Return to Top

Overturned (upper hemisphere)

 Cauldron considers a plot to be made on the entire unit sphere, not just the lower hemisphere. It is assumed that the upper hemisphere would be used to represent entities such as overturned beds. Checking this square means that data entered will be on the upper hemisphere. It will be plotted using the 'upper' colour. This control sets a 'current value'. This is used when creating a new data item with the 'enter' button under the edit tab. It may also be used by other functions, such as those under the 'edit' tab.
Return to Top

Weight

 Cauldron considers a plot to be made on the entire unit sphere, not just the lower hemisphere. It is assumed that the upper hemisphere would be used to represent entities such as overturned beds. Checking this square means that data entered will be on the upper hemisphere. It will be plotted using the 'upper' colour. This control sets a 'current value'. This is used when creating a new data item with the 'enter' button under the edit tab. It may also be used by other functions, such as those under the 'edit' tab.
Return to Top

Enter

 This button uses the other data settings chosen on the enter tab to create a new data point.
Return to Top

Delete Last

 This button removes the last data point entered. For example, use it when a data point was entered in error. It is irreverseable. If in doubt, go to the 'edit' tab. Click on data items in the data list until the item that you wish to remove has turned the 'pick colour' (usually green). The use the ‘delete pick’ button on the ‘edit’ tab.
Return to Top
Copyright: The copyright (2001) of this page is owned by Dr Nigel Stuart of Resource Dynamics, Alberta, Canada. You are welcome to use, reproduce it in part or in whole. Should you reproduce it in part please ensure that credit/blame for authorship is given. A link to the Resource Dynamics home page would be appreciated.