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CGRID |
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Keyboard shortcut: none
Toolbar button: 
Compatible with AutoCAD Versions:
13, 14, 2000, 2000i, 2002, 2004, 2005, 2006, 2007, 2008
This command draws 2'x2' and 2'x4' ceiling grids (Tees) inside a closed polyline boundary. It centers the grids in both directions and shifts the grid if the edge ceiling tile pieces are smaller that 1/2 the grid distance.
User configurable options: none
Known limitations:
None reported. If there is something this command will not do that you think it should please let us know.
Alternate uses:
None reported. If you have an alternate use for this command submit it here.
Layers:
The layer type for this command can be changed in the Assigning Layer Types to Commands portion of the Layer Control section of the APS-CONFIG command.
Known limitations:
None reported. If there is something this command will not do that you think it should please let us know.
Alternate uses:
None reported. If you have an alternate use for this command submit it here.
The CGRID command requires closed polyline (lwpolyline) room outlines to work so before using the CGRID command we recommend using AutoCAD's "BOUNDARY" command to create polyline boundaries for the ceiling areas.
For this example we will assume that you have your reflected ceiling plan drawn as shown above and that all the walls are to go up past the ceiling grids. (When walls do not go up past the ceiling grids you may need to create your polyline boundaries manually with AutoCAD's "PLINE" command.) Make a layer current that has not been used in the RC Plan so far (so we can isolate it) and use AutoCAD's "BOUNDARY" command to create polyline boundaries in the areas that are to receive ceiling grids/tees. (We made a "non-plot" layer current for this example so the boundaries will not show in our drawing and we can then use them to calculate the square footage for each of the areas as needed later)
Once the boundaries have been created isolate the layer that they are on so we just see the boundaries for the ceiling grids/tees. (If you are using Layer Schemes you can select "ALL-OFF" on the screen menu or press the
toolbar button and all but the current layer will be turned off, otherwise the LAYRISO command can isolate the layer as well.)
You are now ready to use the CGRID command.
Command:
Command: CGRIDThe following dialog appears:
Select the size of ceiling tiles by clicking in the box showing the size desired. If the size you want is highlighted (with the yellow border) you may just press <Enter>, the last size selected is the default.
Select closed polyline on a side parallel to desired angle for ceiling grid:
Select one of the room outlines on a side parallel to the direction that you want the long dimension of the grid to go. Obviously this is only important if you are inserting 2x4 grids, if you are inserting 2x2 grids select whichever side you like.
Select outlines of areas to exclude:
If you are inserting the ceiling grids/tees in a room that has "islands" (areas inside it that should NOT be hatched) select them now.
An example is shown above. First select the room outline on the side parallel to the grid direction and then select the area(s) inside to exclude. When done selecting the areas to exclude press <Enter> or <Space> and the room will be hatched.
Tip: If you need other rooms/areas hatched with the same grid alignment as the one just selected you may also select those room outlines now. Areas selected that are outside the original boundary will also be hatched.
Select closed polyline on a side parallel to desired angle for ceiling grid:
Select the next area to hatch.
Select outlines of areas to exclude:
If there are no internal areas to exclude press the <Space> bar or <Enter>.
Select closed polyline on a side parallel to desired angle for ceiling grid:
Continue selecting areas.
Select outlines of areas to exclude:
If there are no internal areas to exclude press the <Space> bar or <Enter>.
Select closed polyline on a side parallel to desired angle for ceiling grid:
Once the last area has been hatched press the <Space> bar or <Enter> and the command will exit.
1x2FLUOR Command to insert a 1'x2' fluorescent light fixture.
1x4FLUOR Command to insert a 1'x4' fluorescent light fixture.
2x2FLUOR Command to insert a 2'x2' fluorescent light fixture.
2x4FLUOR Command to insert a 2'x4' fluorescent light fixture.
EXIT Command to insert an exit symbol
MECHFAG Command to insert a mechanical fresh air grille symbol
MECHRAG Command to insert a mechanical return air grille symbol
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