[MSCE] Terrain Model - How to adjust the Elevation of Contour Lines?

Perhaps my question is silly, but I cannot find the workaround to config the beginning elevation of contour. It lets you to set Major and Minor Interval only.

Anyone knows the solution?

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  • The display style can shade and delineate elevations of your terrain

    But you cannot "snap" and "construct array along path" with the shape (filled) element. Each shape element has their own unique name using item types. There are thousand of them, and I believe display style can help nothing for soil nail arrangement.

    contours might need to be shown on a slope, but not the entire slope, and possibly only for a certain portion of the slope.

    You are correct. By reason for the maintenance's responsibility, a certain portion of the slope is possible. Survey team will provide design team an entire terrain model and a clipped terrain model (also called slope feature / registered slope) for the works. You may have the concept with "registered slope":

    https://hkss.cedd.gov.hk/hkss/en/facts-and-figures/slope-information-system/sis/index.html

  • The display style

    And are there any examples of using display rules on Terrain?

  • Anthony,

    You could try the following as a workaround.

    1. Select the terrain model.
    2. Copy it vertically down by the desired base elevation interval distance.
      (In your example it was 0.700m)
    3. While it is still selected, use the Reset Popup menu to pick Displayset Set to isolate the newly offset terrain model by temporarily hiding all other elements.
    4. Enable the terrain model's contours and disable the triangles.
    5. Use the Drop Element tool with Application Elements checked to drop the terrain element. This will drop the contours to linestrings.
    6. Select all of the contour line strings and use the Add To Graphic Group tool to add them to a Named Group. (Give the group an appropriate name to such as Soil Nail contours Base Elev 0.700m)
    7. Move the new group vertically up by the base elevation interval distance (0.700m)
      This moves the contours back to the correct elevations,
    8. Use the Reset Popup menu to pick Displayset Clear to unhide all elements including the original terrain model.

    This will give you a set of contour linestrings to use for your Soil Nail drawing that you can Snap to and use Construct Array Along Path tool to place the soil nails.

    Regards,

    Ron

    Answer Verified By: clever_anthony 

  • Use the Drop Element tool with Application Elements checked to drop the terrain element. This will drop the contours to linestrings.

    I am doing that to get the linestrings.

    Copy it vertically down by the desired base elevation interval distance.
    (In your example it was 0.700m)

    Stupid, but it works Slight smile

    Note: If you want to use the Terrain Model to show the contour lines directly with prefered base elevation, there are still no solution.