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Rotate
To rotate the selected points around a specific point:
- The buttons in the Select Points field allows you to select the points for rotation:
- Click By Range to enter a range of points. More...
- Click
to choose points from the map.
- Click
to choose points from the list of the job's points.
- Click
to choose the layer whose points will be rotated.
- Select the Rotation Point to define the center of rotation. This can be entered manually, selected from the map
or from the list
of job points.
- Select the Rotation Method. This can be by entering a Rotation Angle or by entering the Old and New Azimuths (Bearings).
- Click the Calc button
to calculate new positions of the points. The results can be seen through the Edit Points dialog.
Note: During this transformation of selected points, original coordinates of the points measured with GNSS receiver will be replaced with new (transformed) coordinates. You will be prompted to confirm such overwriting for each GNSS measured point that is in your selection, with the following available options:
- overwrite this point only;
- skip this point;
- overwrite all;
- skip all.
Translate
To translate a group of points:
- Select the points for translation using the buttons in the Select Points
field:
- Click By Range to enter a range of points. More...
- Click
to choose points from the map.
- Click
to choose points from the list of the job's points.
- Click
to choose the layer whose points will be shifted.
- In Translate By, select the method for translation. This can be by Coords / Pts or Az (Brg), Dist, Ht:
- Coords / Pts: all the selected points will be moved in the same direction and distance as between the points (locations), set by the next two fields: From Pt / From Coords and To Pt / To Coords. In the first case, define only the point ID, in the second case - the local coordinates and the height of the location.
- Az (Brg), Dist, Ht: all the selected points will be moved in the specified direction by a specified distance. These parameters are set through the Azimuth (Bearing) field, Hz Dist and Vert Dist fields.
- Click the Calc button
to calculate new positions of the points. The results can be seen through the Edit Points dialog.
Note: During this transformation of selected points, original coordinates of the points measured with a GNSS receiver will be replaced with new (transformed) coordinates. You will be prompted to confirm such overwriting for each GNSS measured point that is in your selection, with the following available options:
- overwrite this point only;
- skip this point;
- overwrite all;
- skip all.
Scale
To scale the distances of a range of points relative to a base point:
- Select the points for scaling using the buttons in the Select Points
field:
- Click By Range to enter a range of points. More...
- Click
to choose points from the map.
- Click
to choose points from the list of the job's points.
- Click
to choose the layer whose points will be scaled.
- Select the Base Point that is the reference point for the scale transformation. This can be entered manually, selected from the map
or from the list
of job points.
- Set the Scale Factor of the coordinate transformation as required.
- Select the Scale Heights check box if the height values should also be scaled.
- Click the Calc button
to calculate new positions of the points. The results can be seen through the Edit Points dialog.
Note: During this transformation of selected points, original coordinates of the points measured with GNSS receiver will be replaced with new (transformed) coordinates. You will be prompted to confirm such overwriting for each GNSS measured point that is in your selection, with the following available options:
- overwrite this point only;
- skip this point;
- overwrite all;
- skip all.
2D Transformation
To perform two-dimensional transformation of point(s) from one coordinate system to other coordinate system:
- Create a list of point pairs used to calculate the transformation parameters. More...
- Select the points for 2D transformation and calculate the task. More...
2D Transform
The 2D Transform dialog allows you to edit a list of point pairs for use in calculating the transformation parameters between two coordinate systems:
- Select Add to enter pairs of points / plane positions. More...
- Select Edit to change an existing point pair.
- Select Delete to remove an existing point pair from the list.
Select Next to move to the next 2D Transform tab.
Point Pair Info
To select the pairs of points or coordinates to obtain transformation parameters:
- Select From Pt / From Coords to enter either the point or coordinates from which the parameters will be calculated.
- Select To Pt / To Coords to enter either the point or coordinates from which the parameters will be calculated.
2D Transform Parameters
The dialog displays the transformation parameters which will be applied to the set of points which needs transformation.
- Review the transformation parameters:
- Original Position - plane coordinates of a rotation point of one coordinate system relative to the other,
- Offset - horizontal offset between two coordinate systems,
- Scale Factor - scale factor between two coordinate systems,
- Rotation - rotation between two coordinate systems,
- Residuals - residuals for each pair of points on the horizontal plane.
- Select the points for transformation using the buttons in the Select Points field:
- Click By Range to enter a range of points. More...
- Click
to choose points from the map.
- Click
to choose points from the list of the job's points.
- Click
to choose the layer whose points will be rotated.
- Review how many points are included in transformation.
- Click Back to return to the previous dialog, if required.
- Click the Calc button
to calculate new positions of the points. The results can be seen through the Edit Points dialog.
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