& Construction
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Integrated BIM tools, including Revit, AutoCAD, and Civil 3D
& Manufacturing
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Professional CAD/CAM tools built on Inventor and AutoCAD
Transcript
00:03
It is often necessary to edit a mesh using various objects
00:08
to provide more detail and improve the representation of the underlying topography.
00:14
These mesh editing objects can be manually added or taken from external files,
00:20
layers displayed in the GeoPlan view, or objects within the network.
00:26
Mesh zone objects are used as part of the mesh generation process
00:30
to vary the mesh resolution or to define zones in which a ground level modification is required.
00:38
Often, they are used to represent buildings or roads, or to enhance areas of interest.
00:44
In this example, a mesh zone polygon, shown in blue, is already created to represent a road.
00:53
Now, adjust the properties to increase mesh resolution and adjust element levels.
00:59
From the Windows toolbar, Grid windows drop-down, select New polygons window.
01:07
In the grid window, switch to the Mesh zone tab.
01:12
Set the Maximum triangle area (m2) to a value of 25.
01:19
Next, enable Override 2D zone minimum element area settings, and set the Minimum element area (m2) to a value of 5.
01:33
These changes increase the mesh resolution from the default 2D zone values.
01:40
It is also common in some applications to adjust the ground level using mesh polygons—for example,
01:47
to better define the roads as a flow route in surface water modelling applications.
01:52
Note that this only needs to be undertaken where the road channel is not sufficiently represented in the ground model.
01:60
With the resolution of modern ground models now typically 0.5m or lower, this step is often no longer necessary.
02:09
To lower the elements, in the Ground level modification column, set all rows to Raise or lower.
02:18
Then, for this example, set all values in the Raise by column to -0.125.
02:28
Now, re-mesh the 2D zone to include these changes.
02:33
When loaded, you see that your mesh polygon now has an increased density of mesh elements in the GeoPlan along the roads.
02:42
Open a new 3D network window to see that the element levels have also been adjusted.
00:03
It is often necessary to edit a mesh using various objects
00:08
to provide more detail and improve the representation of the underlying topography.
00:14
These mesh editing objects can be manually added or taken from external files,
00:20
layers displayed in the GeoPlan view, or objects within the network.
00:26
Mesh zone objects are used as part of the mesh generation process
00:30
to vary the mesh resolution or to define zones in which a ground level modification is required.
00:38
Often, they are used to represent buildings or roads, or to enhance areas of interest.
00:44
In this example, a mesh zone polygon, shown in blue, is already created to represent a road.
00:53
Now, adjust the properties to increase mesh resolution and adjust element levels.
00:59
From the Windows toolbar, Grid windows drop-down, select New polygons window.
01:07
In the grid window, switch to the Mesh zone tab.
01:12
Set the Maximum triangle area (m2) to a value of 25.
01:19
Next, enable Override 2D zone minimum element area settings, and set the Minimum element area (m2) to a value of 5.
01:33
These changes increase the mesh resolution from the default 2D zone values.
01:40
It is also common in some applications to adjust the ground level using mesh polygons—for example,
01:47
to better define the roads as a flow route in surface water modelling applications.
01:52
Note that this only needs to be undertaken where the road channel is not sufficiently represented in the ground model.
01:60
With the resolution of modern ground models now typically 0.5m or lower, this step is often no longer necessary.
02:09
To lower the elements, in the Ground level modification column, set all rows to Raise or lower.
02:18
Then, for this example, set all values in the Raise by column to -0.125.
02:28
Now, re-mesh the 2D zone to include these changes.
02:33
When loaded, you see that your mesh polygon now has an increased density of mesh elements in the GeoPlan along the roads.
02:42
Open a new 3D network window to see that the element levels have also been adjusted.
Required for course completion
Mesh zone objects are used as part of the mesh generation process to vary the mesh resolution or to define zones in which a ground level modification is required. Often, they are used to represent buildings or roads, or to enhance areas of interest.
In this example, a mesh zone polygon is already created to represent roads, and properties are adjusted to increase mesh resolution and modify element levels.
To increase the mesh resolution from the default 2D zone values:
It is also common in some applications to adjust the ground level using mesh polygons—for example, to better define the roads as a flow route in surface water modelling applications. Note that this only needs to be undertaken where the road channel is not sufficiently represented in the ground model. With the resolution of modern ground models now typically 0.5m or lower, this step is often no longer necessary.
To lower the elements:
When loaded, the mesh polygon now has an increased density of mesh elements in the GeoPlan along the roads.