MensorGIS Least Squares Network Adjustment Tutorial


Back to MensorGIS Help / User Manual


This Tutorial shows Routing Calculations. You learn about



A special Functionality of MensorGIS are Surveying Calculations (Menu „Surveying“):



Now to our tasks:

Start with a new Project Data Set and load the Project Data Set „AdjustmentTutorial“
  1. If needed save your current Project Data Set using Menu „File - Save“

  2. Menu „File - New“

  3. Menu „File - Open“

  4. select „AdjustmentTutorial.minfo“

  5. Menu „View - Limits - Fit“ if necessary


Visualize the Points' Numbers
  1. Menu „Edit - Texts - Generate from Object Class“ -> Window „Create Text“:

  2. select Object Class „TrigoPoint“

  3. select Attribute „Name“

  4. select Color „Black“

  5. select Size „3“

  6. select Layer „1“

  7. press „Create Texts“

  8. close the Window (OK)


Compute a Least Squares Network Adjustment (load appropriate Data Sets):
  1. Menu „Surveying - Least Squares Network Adjustment“ -> Window „Least Squares Network Adjustment“:

  2. press Coordinate File; select BAUM1.KIN -> 7 Points (Tab Coordinates)

  3. press Observations File; BAUM1.MIN -> 16 Observations (Tab Observations)

  4. press Orientation File; select BAUM2.OIN -> 4 Orientations (Tab Orientations)

  5. choose Network Dimension; select „2D-Network“ (GroupBox „Network Dim and A priori“)

  6. activate CheckBox „Store New Points in MensorGIS“ (GroupBox „Calculation“)

  7. press „Start“

  8. -> finished: 1 Iteration(s); 2 Points appear in the Graphics Plot

  9. close the Window (Exit)

LSquNet Directory contains the following Files:
  1. Coordinate File; open BAUM1.kot with a Text Editor to see adjusted Coordinates

  2. Observations File; open BAUM1.mot with a Text Editor to see adjusted Observations

  3. Orientation File; open BAUM1.oot with a Text Editor to see adjusted Orientational Unowns

  4. Protocol File; open BAUM1.htm with an Internet Browser to see Network Adjustment Stochastic Results

  5. Graphics File; open BAUM1.svg with an Internet Browser (SVG Plug-In needed) to see Network Graphics



Start with a new Project Data Set
  1. save your current Project Data Set using Menu „File - Save“

  2. Menu „File - New“


Compute a Least Squares Network Adjustment (load appropriate Data Sets):
  1. Menu „Surveying - Least Squares Network Adjustment“ -> Window „Least Squares Network Adjustment“:

  2. press Coordinate File; select BAUM2.KIN -> 4 Points (Tab Coordinates)

  3. press Observations File; select BAUM2.MIN -> 14 Observations (Tab Observations)

  4. press Orientation File; select BAUM2.OIN -> 4 Orientations (Tab Orientations)

  5. choose Network Dimension; select „2D-Network“ (GroupBox „Network Dim and A priori“)

  6. activate CheckBox „Store New Points in MensorGIS“ (GroupBox „Calculation“)

  7. press „Start“

  8. -> finished: 1 Iteration(s); 1 Point was taken into the Project Data Set

  9. close the Window (Exit)

LSquNet Directory contains the following Files:
  1. Coordinate File; open BAUM2.kot with a Text Editor to see adjusted Coordinates

  2. Observations File; open BAUM2.mot with a Text Editor to see adjusted Observations

  3. Orientation File; open BAUM2.oot with a Text Editor to see adjusted Orientational Unowns

  4. Protocol File; open BAUM2.htm with an Internet Browser to see Network Adjustment Stochastic Results

  5. Graphics File; open BAUM2.svg with an Internet Browser (SVG Plug-In needed) to see Network Graphics


Visualize the Points' Numbers
  1. Menu „Edit - Texts - Generate from Object Class“ -> Window „create Text“:

  2. select Object Class „BAUM2“

  3. select Attribute „CoordNumber“

  4. select Color „Black“

  5. select Size „3“

  6. select Layer „lSquNet“

  7. press „Create Texts“

  8. close the Window (OK)



Start with a new Project Data Set
  1. save your current Project Data Set using Menu „File - Save“

  2. Menu „File - New“


Enter Measurement Information for another Task
  1. Menu „Surveying - Least Squares Network Adjustment“ -> Window „Least Squares Network Adjustment“:

  2. Tab Coordinates (TextBoxes):

    AdjustmentTutorial_Coordinates.jpg (32 kByte)
  3. Tab Observations (TextBoxes):

    AdjustmentTutorial_Observations.jpg (34 kByte)
  4. don't close the Window!


Compute a Least Squares Network Adjustment:
  1. Window „Least Squares Network Adjustment“:

  2. choose Network Dimension; select „3D-Network“ (GroupBox „Network Dim and A priori“)

  3. activate CheckBox „Store New Points in MensorGIS“ (GroupBox „Calculation“)

  4. press „Start“

  5. -> finished: 1 Iteration(s); 1 Point was taken into the Project Data Set

  6. close the Window (Exit)

LSquNet Directory contains the following Files:
  1. Coordinate File; open Net3D.kot with a Text Editor

  2. Observations File; open Net3D.mot with a Text Editor

  3. Protocol File; open Net3D.htm with an Internet Browser

  4. Graphics File; open Net3D.svg with an Internet Browser (SVG Plug-In needed)



Remarks on Network Adjustment:

Back to MensorGIS Help / User Manual


MensorGIS Version 1.1.1, 2012/03/29