Transformation

This command allows you to Translate, Rotate, Scale and/or Align points in the current job. Any point drawn on the map screen will be updated automatically in addition to updating the coordinates.

All of the transformations can be performed individually or all at once, if desired (Align is capable of Translate, Rotate and Scale). You first fill out the options in one or more of the tabs and then press ✅ and obtain a second screen where you fill out the range of points to transform.

Translate

On the Translate (Move) tab, two general methods can be used to specify the translation amount:

1. Delta: These values represent the change in the original coordinate values and the desired coordinate values.

   Note: Raising or lowering the elevations of points is a simple matter of specifying the Delta Elv amount and leaving the Northing and Easting values at 0.

2. Original/Destination: Indicate an existing Point ID or known coordinates of the before and after locations for the move.

   Note: This method includes the standard Point List and/or Map Screen pick methods.

   Upon specifying the two coordinates, the Delta values will be calculated and shown in their respective fields.

Note: These options share the same general coordinate labels:

• N: The Northing (Y) delta or coordinate, respectively.
• E: The Easting (X) delta or coordinate, respectively.
• Elv: The Elevation (Z) delta or coordinate, respectively.

Rotate

On the Rotate tab, two general methods can be used to specify the rotation amount around a specified Base Point coordinate:

1. Rotation: Specify the desired rotation amount.

   Note: The type of value is governed by the Angle setting.

2. Original/New: Indicate an Original Azimuth and a New Azimuth that will be used to calculate the Rotation value above.

   Note: In addition to the standard Point List option for the From/To directions, the Map Screen pick option will place a point at the picked location if one does not already exist.

   Upon specifying two points, the Direction value(s) will be calculated and shown in their respective fields.

Note: For all rotations, the rotation value is written into the Raw File as ddd.mmss.

Scale

The Scale tab is used to expand/contract the vectors from a specified Base Point by a specified Scale Factor.

Note: The coordinate of the Base Point will remain unchanged.

• Ignore Elevations: When enabled, only the Northing and Easting values are scaled.

Align

Similar to a Points Localization, the Align tab will Translate, Rotate and Scale data based on using data pairs between Source and Destination coordinates.

1. The difference between the first Source point and first Destination point determines the Translation amount.
2. The difference between the Angle/Distance from the first and second Source points compared to the Angle/Distance from the first and second Destination points determines the Rotation and Scale.

   Note: When two, and only two, data pairs have been specified, the 2pt Rotate Only option becomes available.

3. Once three or more data pairs have been established, Horizontal Residual values will start to be computed.
4. Once four or more data pairs have been established, Vertical Residual values will start to be computed.
5. Additional data pairs can be specified for redundancy to catch any outliers.

The status of the data pairs is displayed in a grid control for easy review.

• HRes/VRes: Displays the current Horizontal/Vertical Residuals, respectively.
• Method: Indicate the type of methodology that should be applied to the alignment process:
  • Plane Similarity: Uses a best-fit least-squares transformation and performs a translation, rotation and scale.
  • Rigid Body (No Scale): Uses a best-fit least-squares transformation and performs a translation and rotation, without scale.
• 2pt Rotate Only: When enabled (and checked), the Scale is set to 1 leading to a rotation only.
• Use Crt Localization: Loads the current Localization (if available) associated with the current job.
• Delete: Removes the highlighted coordinate pair from the processing routine.
• Load: Launches the standard File Selector that can open various localization file types or dedicated transformation *.LPT file types.
• On/Off: Permits the Horizontal and/or Vertical aspect of a data pair to be toggled On or Off.
  More Information

  The functionality of this dialog box (essentially that of the Localization On/Off) can also be directly controlled via the check-boxes in the transformation grid controls.

  

• Save: Launches the standard File Selector that permits the data to be saved to the transformation *.LPT file type.
• Edit: Permits the currently selected data pair to be modified.
• Add: Permits a new data pair to be added into the list.
  More Information

  The functionality of this dialog box permits a user to specify the coordinate pairs, each of which share Point Number (which includes the standard Point List and/or Map Screen pick methods) , Northing, Easting, Elevation and Description values.

  

  • Source: Indicate a coordinate that serves as a From point.
  • Destination: Indicate a coordinate that serves as a To point.

Transform

When ✅ is pressed from one of the proceeding transformation tabs, a second screen appears which controls the range of points to be translated:

• Points: When enabled, specified points data will undergo the transformation.
  • Range of Points: Enter the range of points to translate. Ranges can be entered in the following format:

    1-20,32,40-45, etc.

  • Add to Point Numbers: Enter a number to add to existing point numbers to create new point numbers.

    Note: This option is not available when using the Overwrite Existing Point Numbers option.

  • Overwrite Existing Point Numbers: Overwrites the existing point coordinate data with the new coordinate data.
  • Use New Point Numbers: Uses new point numbers for the new coordinate positions while keeping the existing point numbers and coordinate data.

    Note: Each time a point is to be overwritten, you will be prompted whether to overwrite or use a new point number. This method is only recommended when you are transforming very few points and wish to give each a specific point number assignment.

  • Store in New CRD File: This option writes the transformed points to a new Job file while keeping the existing point numbers and coordinate data. You may also choose to input a number for Add to Point Numbers, but this is not required.
• Linework: When enabled, this option allows for linework transformation.
  • Automatic – All Layers: This option processes linework on layers that are currently On.
    • Process Frozen Layers: When enabled, this option processes linework on layers that are also Off.
  • Manual – Select: This option allows the user to manually select linework to be included in the linear transformation routine. The linework can be selected through the Polyline Pick control to the immediate left of ✅.
    More Information

    The Polyline Pick interface uses much of the Map Screen interface and offers the ability to individually select polyline(s) of interest:

    

    • Allow Multiple Selection: When enabled, "crossing" window boxes can be used and will select any polylines that are within or touch the boxed area.

Raw Data Records

The transformation raw data records are expressed as one string per command with the values separated by spaces. These records will be recorded to the Raw File for processing purposes so that all Carlson processors will recognize the records and perform the transformation during re-processing.

Example:

CC,Translate,7-9 200 50 0 0
CC,Rotate,7-9 33.1234 79613.662 15619.725
CC,Scale,7-9 1.5 79613.662 15619.725
CC,Align,7-9 8 6 9 7