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GEOVIA Surpac

New midpoint

You can use this function to create new points by selecting two existing points and adding a point halfway between the two selected points. The new point is appended to the end of the digitiser string. This is useful when interpolating geological zones from drilling data when the drillholes are displayed in Graphics.

To run this function:

  • choose Create > Digitise > New midpoint
  • when using DIGITISER DIGITISE, right-click and choose the DIGITISER MIDPOINT icon from the context menu

Function Name :

  • DIGITISER MIDPOINT

If point attributes are entered at each new point, the Digitiser string attributes form is displayed to accept the Z and description values for the new point.

Fields on the Digitiser string attributes form

Field Description
String Display only. The digitiser string number.
Z

The elevation at which the point is digitised.

Note: If the active plane is not horizontal, this field is unavailable.

Desc

The description value to apply to the digitised point.

Note: If you want to add descriptions to more than one description field, enter the information for each field, separated by a comma. The description fields are used sequentially. That is, the first value is entered in D1, the second in D2.

Snapping properties
Use Desc of selected point If you are using snap to point, the values entered in the description fields of the new point are taken from the description fields in the existing point. If you are using snap to line or snap to triangle, the values entered in the description fields of the new point are taken from the description fields of the nearest point. If you are using no snap, no values are added to the description fields.
User entered Desc The values you typed in the Desc field are entered in the description fields for each point.
Project selections to the current plane
  • Selected: When you are snapping to existing data (for example, point, line, or triangle), the point is projected onto the active plane.
  • Cleared: When you are snapping to existing data (for example, point, line, or triangle), the point is digitised at the exact location of the existing data.

Output

The new point is created midway between the two selected points. This new point is added to the end of the digitiser string.