MensorGIS Height Contour Level Tutorial


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This Tutorial shows Routing Calculations. You learn about



MensorGIS has a proprietary XML Data Format for storing Cartographic Features (Menues „Import-openCartoDB“/„Export-openCartoDB“):


Tracking Information of GPS Handhelds is also often of interest (Menues „Import-GPX Data“/„Export-GPX Data“):


A typical Cartographic Functionality is Generation of Height Contour Levels (Menu „Height Data“):



Now to our tasks:

Import the Height Grid Data Set „openCartoDGMerg.xml“
  1. Menu „File - Import - openCartoDB“

  2. select „openCartoDGMerg.xml“

  3. answer the Question on Identity Check with „No“

  4. -> 8 Object Classes get created, 1 is them are used (Points): grid(lines) with 630 Points


Import the GPX Data Set „Ergoldsbach.gpx“
  1. Menu „File - Import - GPX“

  2. select „Ergoldsbach.gpx“

  3. answer the Question on Identity Check with „No“

  4. -> 1 Object Class gets created (Lines): Streets of OpenStreetMap


Generate Height Contour Levels from the Height Grid
  1. Menu „Height Contour Levels - Compute Contour Levels“ -> Window „Height Contour Levels“:

  2. select Object Class „OCDB_DTMgrid“

  3. select Attribute „heights“

  4. select Interpolation Method „Inverse Distance (4)“

  5. let the ComboBoxes for Threeshold (32) and Contrast (0.50)

  6. press Button „Calculate“

  7. the Percent Number/Progress Bar show the State of computation (if you want to stop the computation then press „STOP“)

  8. when computation is finished the Height Contour Levels get displayed

  9. change the Number of Steps for the Threesholds and press the „Redraw“ Button

  10. change the Scaling for the Contrast and press the „Redraw“ Button

  11. toggling the Button „Height Plot OFF/ON“ changes the Display State

  12. close the Window (OK)



Remarks on Interpolation Models:



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MensorGIS Version 1.1.1, 2012/03/29