The Figure 1 shows RMC's options of a grid layer. These options are summarized in the Table 1.
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Layer Visible: Uncheck this box will not show the grid layer ( the light bulb of the layer in the Control Panel is also turned off)
Show Lines: Uncheck this box will not show the gridlines but other show properties of the grid are still displayed (e.g. Orthogonal Deviation) (Figure 3)
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Figure 3. Grid's orthogonal deviation with unshown gridlines.
Show Properties
The number of options for show properties of the grid layer is shown in Figure 4 and described in Table 2.
Anchor Figure 4 Figure 4
Figure 3. Show Properties.
Table 2. Show Properties.Anchor Table 12 Table 12
| Option | Description |
|---|---|
| None | Show the grid only |
| Orthogonal Deviation | Show the orthogonal deviation of the grid by color ramp. (Figure 4) |
| Cell Aspect Ratio | Show the cell aspect ratio of the grid by color ramp. (Figure 5) |
| Cell Area | Show the area of the grid cells by color ramp. (Figure 6) |
| Cell DX | Show the dimension DX of the grid cells by color ramp. (Figure 7) |
| Cell DY | Show the dimension DY of the grid cells by color ramp. (Figure 8) |
Anchor Figure 4 Figure 4
Figure 4. Show Properties: Orthogonal Deviation.
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Figure 8. Show Properties: Cell DY.
Show Labels
The number of options for show labels of the grid layer is shown in Figure 9 and described in Table 3.
Anchor Figure 9 Figure 9
Figure 9. Show Labels of the grid.
Table 3. Show Labels for grid layer.Anchor Table 3 Table 3
| Option | Description |
|---|---|
| None | Only the grid is displayed |
| Cell L Index | Show the L index number of the grid cells, each cell has only |
| an L index. (Figure |
| 10) | |
| Cell I,J Indices | Show the I and J indices number of the grid cells, each cell has a pair of I and J indices. (Figure |
| 11). This option sometimes is helpful when we create the next grid to merge with the previous grid as we want to know the number of cells along a segment of the previous grid. |
| Nodal I,J Indices | Show the I and J indices number of the grid nodes, each grid node has a pair of I and J indices. (Figure |
| 12) | |
| Bottom Elevation | Updated later |
Anchor Figure 910 Figure 910
Figure 910. Show Labels: Cell L Index.
Anchor Figure 1011 Figure 1011
Figure 1011. Show Labels: Cell I,J Indices.
Anchor Figure 1112 Figure 1112
Figure 1112. Show Labels: Node Nodal I,J Indices.
Anchor Figure 13 Figure 13
Figure 13. Show Labels: Bottom Elevation.
Grid Indexing
When a grid is generated each cell or node has an I and J coordinate. Sometimes these are not in the direction that the user requires. The Grid Indexing tool allows the user to reverse the I and J coordinates either separately, or at the same time.
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Table 4. Grid IndexingAnchor Table 4 Table 4
| Option | Description |
|---|---|
| Transpose I - J Indices | Reverses both the I and J indices of the selected grid at the same time. |
| Flip I Indices | Reverses only the I indices of the selected grid. |
| Flip J Indices | Reverses only the I indices of the selected grid. |
| Rotate Indices Clockwise | Orders the indices in a clockwise direction. |
| Rotate Indices Counter-Clockwise | It is the opposite of the Rotate Indices Clockwise. |
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The Export To option allows saving the grid to a file with different file formats as shown in Figure 1214. These options are summarized in Table 5. The function of these options is similar to the Export button described in Main toolbar buttons.
Anchor Figure 1214 Figure 1214
Figure 1214. Export grid layer options.
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| Option | Description |
|---|---|
| Export To Grid+ | Export the selected grid layer to the native grid file of Grid+ (*.cvl), Export To RGF GridExport the selected grid layer to the native grid file of the Delft3D (*.grd) |
| Export To EFDC Grid | Export the selected grid layer to the EFDC input file (including corners.inp, dxdy.inp, lxly.inp), these files can open with EEMS. |
| Export To Shapefile | Export the selected grid layer to the shapefile which can open with ArcGIS, QGIS, Global Mapper, etc. |
| Export To KML | Export the selected grid layer to the KML file which can open with Google Earth, Global Mapper, etc. |
| Export To Outline | Export outline of the selected grid layer to a text file (*.p2d). |
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