The grid layer has a range of special options that are accessed by RMC on the grid title in the tree view (Figure 1). These options are summarized in the Table 1.
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Table 2. Show Properties. Anchor Table 2 Table 2
Option | Description |
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None | Show the grid only |
Orthogonal Deviation | Show the orthogonal deviation of the grid by color ramp (see Figure 4) |
Cell Aspect Ratio | Show the cell aspect ratio of the grid by color ramp (see Figure 5) |
Cell Area | Show the area of the grid cells by color ramp (see Figure 6) |
Cell DX | Show the dimension DX of the grid cells by color ramp (see Figure 7) |
Cell DY | Show the dimension DY of the grid cells by color ramp (see Figure 8) |
Anchor Figure 4 Figure 4
Figure 4. Show Properties: Orthogonal Deviation.
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Table 3. Show Labels for grid layer. Anchor Table 3 Table 3
Option | Description |
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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 a new grid that we want to merge with the previous grid. In this case, we need 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 | To be implemented later. |
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Table 4. Grid Indexing Anchor Table 4 Table 4
Option | Description |
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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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Option | Description |
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Export Grid | Export the selected grid layer to an external grid file. Grid file formats can be a native file of Grid+ (*.gpc), CVLGrid (*.cvl), Delft3D (*.grd), or others. This option also can be accessed from the Export button in the main toolbar. |
Export To EFDC | Export the selected grid layer to an 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 a shapefile which can be opened with ArcGIS, QGIS, Global Mapper, etc. |
Export To KML | Export the selected grid layer toa to a KML file which can be opened with Google Earth, Global Mapper, etc. |
Export Outline | Export outline of the selected grid layer to a text file (*.p2d). |
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Once selecting the Export Grid option, the Export to Grid form will be displayed, as shown in Figure 15. Define the file type from the drop-down list then enter a file name. Define the folder location to locate the file then click the Save button. Then the Coordinate System form will pop up, select the proper project then click the OK button as shown in Figure 16. When the exporting is done, a message will pop up as shown in Figure 17.
Anchor Figure 15 Figure 15
Figure 15. Export grid to file.
Anchor Figure 16 Figure 16
Figure 16. Select projection form.
Anchor Figure 17 Figure 17
Figure 17. Export grid message.