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9.02 Define the point cloud 0,00 elevation

When you import the point cloud, it often happens that its 0,00 height is not identical to the ground floor 0,00 level of your Archicad project.
If, for example, you see the scan position objects on the floor plan, but the point cloud does not appear, you may guess that the point cloud lies (much) higher or lower.

As the project zero height is ideally on the ground floor, locate a scan position taken on the ground floor you would consider being 0,00.

image.png Select the “Pick up location” button from the BIMmTool Palette,
... and hit the selected scan position with the pipette to display it in the BIMmNavigator Panorama view.
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Turn the panorama to a view where you can detect the floor and select the “Measure Z-value” function to pick up the floor level height. Hit the floor in the Panorama view.

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The Z-value field will indicate the elevation of the measured point.

In other words, the value is the vertical position of the measured point compared to your project 0,00 level, so you’ll need to adjust the elevation of your entire point cloud accordingly. Note down this value.

Attention: Make sure all your scan positions are linked to the ground floor.

Zoom out to see all scan positions on the floor plan and select them. Verify that they are editable. Unlock them if necessary.

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Having all scan positions selected and editable, choose the Move > Elevate... command from the context menu.

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Enter the elevation value with the opposite sign to bring the point cloud to your ideal 0,00 height on the ground floor. Make sure to leave the checkbox empty and hit OK.

Run a test measurement on the same spot again to verify the floor elevation is correct.

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Your point cloud is at the right height.